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https://en.wikipedia.org/wiki/Miguel%20de%20Cervantes

Miguel de Cervantes

Miguel de Cervantes Saavedra (; 29 September 1547 (assumed)22 April 1616 NS) was a Spanish writer widely regarded as the greatest writer in the Spanish language and one of the world's pre-eminent novelists. He is best known for his novel Don Quixote, a work often cited as both the first modern novel and one of the pinnacles of world literature. Much of his life was spent in poverty and obscurity, while the bulk of his surviving work was produced in the three years preceding his death, when he was supported by the Count of Lemos and did not have to work. Despite this, his influence and literary contribution are reflected by the fact that Spanish is often referred to as "the language of Cervantes". In 1569, Cervantes was forced to leave Spain and moved to Rome, where he worked in the household of a cardinal. In 1570, he enlisted in a Spanish Navy infantry regiment, and was badly wounded at the Battle of Lepanto in October 1571. He served as a soldier until 1575, when he was captured by Barbary pirates; after five years in captivity, he was ransomed, and returned to Madrid. His first significant novel, titled La Galatea, was published in 1585, but he continued to work as a purchasing agent, then later a government tax collector. Part One of Don Quixote was published in 1605, Part Two in 1615. Other works include the 12 Novelas ejemplares (Exemplary Novels); a long poem, the Viaje del Parnaso (Journey to Parnassus); and Ocho comedias y ocho entremeses (Eight Plays and Eight Interludes). Los trabajos de Persiles y Sigismunda (The Travails of Persiles and Sigismunda), was published posthumously in 1616. Biography Despite his subsequent renown, much of Cervantes's life is uncertain, including his name, background and what he looked like. Although he signed himself Cerbantes, his printers used Cervantes, which became the common form. In later life, Cervantes used Saavedra, the name of a distant relative, rather than the more usual Cortinas, after his mother. But historian Luce López-Baralt, claimed that it comes from the word «shaibedraa» that in Arabic dialect is one-handed, his nickname during his captivity. Another area of dispute is his religious background. It has been suggested that not only Cervantes's father but also his mother may have been New Christians. According to Anthony Cascardi "While the family might have had some claim to nobility they often found themselves in financial straits. Moreover, they were almost certainly of converso origin, that is, converts to Catholicism of Jewish ancestry. In the Spain of Cervantes' days, this meant living under clouds of official suspicion and social mistrust, with far more limited opportunities than were enjoyed by members of the ‘Old Christian’ caste." It is generally accepted Miguel de Cervantes was born around 29 September 1547, in Alcalá de Henares. He was the second son of barber-surgeon Rodrigo de Cervantes and his wife, Leonor de Cortinas (). Rodrigo came from Córdoba, Andalusia, where his father Juan de Cervantes was an influential lawyer. No authenticated portrait of the author is known to exist. The one most often associated with Cervantes is attributed to Juan de Jáuregui, but both names were added at a later date. The El Greco painting in the Museo del Prado, known as Retrato de un caballero desconocido, or Portrait of an Unknown Gentleman, is cited as 'possibly' depicting Cervantes, but there is no evidence for this. The portrait by Luis de Madrazo, at the Biblioteca Nacional de España, was painted in 1859, based on his imagination. The image that appears on Spanish euro coins of €0.10, €0.20, and €0.50 is based on a bust, created in 1905. 1547 to 1566: Early years Rodrigo was frequently in debt, or searching for work, and moved constantly. Leonor came from Arganda del Rey, and died in October 1593, at the age of 73; surviving legal documents indicate she had seven children, could read and write, and was a resourceful individual with an eye for business. When Rodrigo was imprisoned for debt from October 1553 to April 1554, she supported the family on her own. Cervantes's siblings were Andrés (born 1543), Andrea (born 1544), Luisa (born 1546), Rodrigo (born 1550), Magdalena (born 1554) and Juan. They lived in Córdoba until 1556, when his grandfather died. For reasons that are unclear, Rodrigo did not benefit from his will and the family disappears until 1564 when he filed a lawsuit in Seville. Seville was then in the midst of an economic boom, and Rodrigo managed rented accommodation for his elder brother Andres, who was a junior magistrate. It is assumed Cervantes attended the Jesuit college in Seville, where one of the teachers was Jesuit playwright Pedro Pablo Acevedo, who moved there in 1561 from Córdoba. However, legal records show his father got into debt once more, and in 1566, the family moved to Madrid. 1566 to 1580: Military service and captivity In the 19th century, a biographer discovered an arrest warrant for a Miguel de Cervantes, dated 15 September 1569, who was charged with wounding Antonio de Sigura in a duel. Although disputed at the time, largely on the grounds such behaviour was unworthy of so great an author, it is now accepted as the most likely reason for Cervantes leaving Madrid. He eventually made his way to Rome, where he found a position in the household of Giulio Acquaviva, an Italian bishop who spent 1568 to 1569 in Madrid, and was appointed Cardinal in 1570. When the 1570 to 1573 Ottoman–Venetian War began, Spain formed part of the Holy League, a coalition formed to support the Venetian Republic. Possibly seeing an opportunity to have his arrest warrant rescinded, Cervantes went to Naples, then part of the Crown of Aragon. The military commander in Naples was Alvaro de Sande, a friend of the family, who gave Cervantes a commission under the Marquis de Santa Cruz. At some point, he was joined in Naples by his younger brother Rodrigo. In September 1571, Cervantes sailed on board the Marquesa, part of the Holy League fleet under Don John of Austria, illegitimate half brother of Phillip II of Spain; on 7 October, they defeated the Ottoman fleet at the Battle of Lepanto. According to his own account, although suffering from malaria, Cervantes was given command of a 12-man skiff, a small boat used for assaulting enemy galleys. The Marquesa lost 40 dead, and 120 wounded, including Cervantes, who received three separate wounds, two in the chest, and another that rendered his left arm useless. His actions at Lepanto were a source of pride to the end of his life, while Don John approved no less than four separate pay increases for him. In Journey to Parnassus, published two years before his death in 1616, Cervantes claimed to have "lost the movement of the left hand for the glory of the right". As with much else, the extent of his disability is unclear, the only source being Cervantes himself, while commentators cite his habitual tendency to praise himself. However, they were serious enough to earn him six months in the Civic Hospital at Messina, Sicily. Although he returned to service in July 1572, records show his chest wounds were still not completely healed in February 1573. Based mainly in Naples, he joined expeditions to Corfu and Navarino, and took part in the 1573 occupation of Tunis and La Goulette, which were recaptured by the Ottomans in 1574. Despite Lepanto, the war overall was an Ottoman victory, and the loss of Tunis a military disaster for Spain. Cervantes returned to Palermo, where he was paid off by the Duke of Sessa, who gave him letters of commendation. In early September 1575, Cervantes and Rodrigo left Naples on the galley Sol; as they approached Barcelona on 26 September, their ship was captured by Ottoman corsairs, and the brothers taken to Algiers, to be sold as slaves, or – as was the case of Cervantes and his brother – held for ransom, if this would be more lucrative than their sale as slaves. Rodrigo was ransomed in 1577, but his family could not afford the fee for Cervantes, who was forced to remain. Turkish historian Rasih Nuri İleri found evidence suggesting Cervantes worked on the construction of the Kılıç Ali Pasha Complex, which means he spent at least part of his captivity in Istanbul. By 1580, Spain was occupied with integrating Portugal, and suppressing the Dutch Revolt, while the Ottomans were at war with Persia; the two sides agreed a truce, leading to an improvement of relations. After almost five years, and four escape attempts, in 1580 Cervantes was set free by the Trinitarians, a religious charity that specialised in ransoming Christian captives, and returned to Madrid. 1580 to 1616: Later life and death While Cervantes was in captivity, both Don John and the Duke of Sessa died, depriving him of two potential patrons, while the Spanish economy was in dire straits. This made finding employment difficult; other than a period in 1581 to 1582, when he was employed as an intelligence agent in North Africa, little is known of his movements prior to 1584. In April of that year, Cervantes visited Esquivias, to help arrange the affairs of his recently deceased friend and minor poet, Pedro Lainez. Here he met Catalina de Salazar y Palacios (), eldest daughter of the widowed Catalina de Palacios; her husband died leaving only debts, but the elder Catalina owned some land of her own. This may be why in December 1584, Cervantes married her daughter, then between 15 and 18 years old. The first use of the name Cervantes Saavedra appears in 1586, on documents related to his marriage. Shortly before this, his illegitimate daughter Isabel was born in November. Her mother, Ana Franca, was the wife of a Madrid inn keeper; they apparently concealed it from her husband, but Cervantes acknowledged paternity. When Ana Franca died in 1598, he asked his sister Magdalena to take care of her. In 1587, Cervantes was appointed as a government purchasing agent, then became a tax collector in 1592. They were also subject to price fluctuations, which could go either way; he was briefly jailed several times for 'irregularities', but quickly released. Several applications for positions in Spanish America were rejected, although modern critics note images of the colonies appear in his work. From 1596 to 1600, he lived primarily in Seville, then returned to Madrid in 1606, where he remained for the rest of his life. In later years, he received some financial support from the Count of Lemos, although he was excluded from the retinue Lemos took to Naples when appointed Viceroy in 1608. In July 1613, he joined the Third Order Franciscans, then a common way for Catholics to gain spiritual merit. It is generally accepted Cervantes died on 22 April 1616 (NS; the Gregorian calendar had superseded the Julian in 1582 in Spain and some other countries); the symptoms described, including intense thirst, correspond to diabetes, then untreatable. In accordance with his will, Cervantes was buried in the Convent of the Barefoot Trinitarians, in central Madrid. His remains went missing when moved during rebuilding work at the convent in 1673, and in 2014, historian Fernando de Prado launched a project to rediscover them. In January 2015, Francisco Etxeberria, the forensic anthropologist leading the search, reported the discovery of caskets containing bone fragments, and part of a board, with the letters 'M.C.'. Based on evidence of injuries suffered at Lepanto, on 17 March 2015 they were confirmed as belonging to Cervantes along with his wife and others. They were formally reburied at a public ceremony in June 2015. Literary career and legacy Cervantes claimed to have written over 20 plays, such as El trato de Argel, based on his experiences in captivity. Such works were extremely short-lived, and even Lope de Vega, the best-known playwright of the day, could not live on their proceeds. In 1585, he published La Galatea, a conventional pastoral romance that received little contemporary notice; despite promising to write a sequel, he never did so. Aside from these, and some poems, by 1605, Cervantes had not been published for 20 years. In Don Quixote, he challenged a form of literature that had been a favourite for more than a century, explicitly stating his purpose was to undermine 'vain and empty' chivalric romances. His portrayal of real life, and use of everyday speech in a literary context was considered innovative, and proved instantly popular. First published in January 1605, Don Quixote and Sancho Panza featured in masquerades held to celebrate the birth of Philip IV on 8 April. He finally achieved a degree of financial security, while its popularity led to demands for a sequel. In the foreword to his 1613 work, Novelas ejemplares, dedicated to his patron, the Count of Lemos, Cervantes promises to produce one, but was pre-empted by an unauthorised version published in 1614, published under the name Alonso Fernández de Avellaneda. It is possible this delay was deliberate, to ensure support from his publisher and reading public; Cervantes finally produced the second part of Don Quixote in 1615. The two parts of Don Quixote are different in focus, but similar in their clarity of prose, and realism; the first was more comic, and had greater popular appeal. The second part is often considered more sophisticated and complex, with a greater depth of characterisation and philosophical insight. In addition to this, he produced a series of works between 1613 and his death in 1616. They include a collection of tales titled Exemplary Novels. This was followed by Viaje del Parnaso, or Eight Comedies and Eight New Interludes, and Los trabajos de Persiles y Sigismunda, completed just before his death, and published posthumously in January 1617. He was rediscovered by English writers in the mid-18th century; literary editor John Bowle argued Cervantes was as significant as any of the Greek and Roman authors then popular, and published an annotated edition in 1781. Now viewed as a significant work, at the time it proved a failure. However, Don Quixote has been translated into all major languages, in 700 editions. Mexican author Carlos Fuentes suggested Cervantes and his contemporary William Shakespeare form part of a narrative tradition, which includes Homer, Dante, Defoe, Dickens, Balzac, and Joyce. Sigmund Freud claimed he learnt Spanish to read Cervantes in the original; he particularly admired The Dialogue of the Dogs (El coloquio de los perros), from Exemplary Tales. Two dogs, Cipión and Berganza, share their stories; as one talks, the other listens, occasionally making comments. From 1871 to 1881, Freud and his close friend, Eduard Silberstein, wrote letters to each other, using the pennames Cipión and Berganza. The tricentennial of Don Quixote publication in 1905 was marked with celebrations in Spain; the 400th anniversary of his death in 2016, saw the production of Cervantina, a celebration of his plays by the Compañía Nacional de Teatro Clásico in Madrid. The Miguel de Cervantes Virtual Library, the largest digital archive of Spanish-language historical and literary works in the world, is named after the author. Cervantes influenced the popular musical play of 1965, Man of La Mancha. Bibliography As listed in Complete Works of Miguel de Cervantes: La Galatea (1585); El ingenioso hidalgo Don Quixote de la Mancha (1605): First volume of Don Quixote. Novelas ejemplares (1613): a collection of 12 short stories of varied types about the social, political, and historical problems of Cervantes's Spain: "La gitanilla" ("The Gypsy Girl") "El amante liberal" ("The Generous Lover") "Rinconete y Cortadillo" ("Rinconete & Cortadillo") "La española inglesa" ("The English Spanish Lady") "El licenciado Vidriera" ("The Lawyer of Glass") "La fuerza de la sangre" ("The Power of Blood") "El celoso extremeño" ("The Jealous Man From Extremadura") "La ilustre fregona" ("The Illustrious Kitchen-Maid") "Novela de las dos doncellas" ("The Novel of the Two Damsels") "Novela de la señora Cornelia" ("The Novel of Lady Cornelia") "Novela del casamiento engañoso" ("The Novel of the Deceitful Marriage") "El coloquio de los perros" ("The Dialogue of the Dogs") Segunda Parte del Ingenioso Cavallero [sic] Don Quixote de la Mancha (1615): Second volume of Don Quixote. Los trabajos de Persiles y Sigismunda (1617). Other works Generally considered a mediocre poet, few of his poems survive; some appear in La Galatea, while he also wrote Dos Canciones à la Armada Invencible. His sonnets are considered his best work, particularly Al Túmulo del Rey Felipe en Sevilla, Canto de Calíope and Epístola a Mateo Vázquez. Viaje del Parnaso, or Journey to Parnassus, is his most ambitious verse work, an allegory that consists largely of reviews of contemporary poets. He published a number of dramatic works, including ten extant full-length plays: Trato de Argel; based on his own experiences, deals with the life of Christian slaves in Algiers; La Numancia; intended as a patriotic work, dramatization of the long and brutal siege of Numantia, by Scipio Aemilianus, completing the transformation of the Iberian peninsula into the Roman province Hispania, or España. El gallardo español, Los baños de Argel, La gran sultana, Doña Catalina de Oviedo, La casa de los celos, El laberinto de amor, La entretenida, El rufián dichoso, Pedro de Urdemalas, a sensitive play about a picaro, who joins a group of Gypsies for love of a girl. He also wrote 8 short farces (entremeses): El juez de los divorcios, El rufián viudo llamado Trampagos, La elección de los Alcaldes de Daganzo, La guarda cuidadosa (The Vigilant Sentinel), El vizcaíno fingido, El retablo de las maravillas, La cueva de Salamanca, El viejo celoso (The Jealous Old Man). These plays and entremeses, except for Trato de Argel and La Numancia, made up Ocho Comedias y ocho entreméses nuevos, nunca representados (Eight Comedies and Eight New Interludes, Never Before Performed), which appeared in 1615. The dates and order of composition of Cervantes's entremeses are unknown. Faithful to the spirit of Lope de Rueda, Cervantes endowed them with novelistic elements, such as simplified plot, the type of descriptions normally associated with a novel, and character development. Cervantes included some of his dramas among the works he was most satisfied with. Influence Places Cervantes. A municipality in the province of Lugo, Galicia, Spain, but the name of the town is not based on Miguel de Cervantes (nor is there any evidence tying him or his family to this town). Cervantes. A municipality in the province of Ilocos Sur, Philippines. Cervantes. A township situated north of the Western Australian state capital Perth in Australia. Television Cervantes is a recurring character in the Spanish television show El ministerio del tiempo, portrayed by actor Pere Ponce. Cervantes played a prominent role in the episode "Gentlemen of Spain" of the TV series Sir Francis Drake (1961–1962). He was portrayed by the actor Nigel Davenport and the plot had him heroically rescuing other Christian captives from the Barbary pirates. See also Casa de Cervantes Instituto Cervantes Miguel de Cervantes European University Miguel de Cervantes Health Care Centre Miguel de Cervantes Liceum Miguel de Cervantes Memorial Miguel de Cervantes University Notes References Citations Sources Further reading Cervantes: A Collection of Critical Essays, ed. Lowry Nelson, 1969. Critical Essays on Cervantes / ed. Ruth S. El Saffar, 1986. Scenes from World Literature and Portraits of Greatest Authors, Manuel Vázquez Montalbán and Willi Glasauer, Círculo de Lectores, 1988. Cervantes's Don Quixote (Modern Critical Interpretations), ed. Harold Bloom, 2001. The Cambridge Companion to Cervantes, ed. Anthony J. Cascardi, 2002. Miguel de Cervantes (Modern Critical Views), ed. Harold Bloom, 2005. Cervantes' Don Quixote: A Casebook, ed. Roberto González Echevarría, 2005. Le Barbaresque, Olivier Weber, Flammarion, 2011. Pérez, Rolando. "What is Don Quijote/Don Quixote And…And…And the Disjunctive Synthesis of Cervantes and Kathy Acker." Cervantes ilimitado: cuatrocientos años del Quijote. Ed. Nuria Morgado. ALDEEU, 2016. 75–100. Pérez, Rolando. Cervantes’s “Republic”: On Representation, Imitation, and Unreason. eHumanista 47. 2021-: 89-111. x External links Biblioteca Virtual Miguel de Cervantes Spanish web site with multiple Cervantes links and audio of whole of Don Quixote Famous Hispanics The Cervantes Project with biographies and chronology Information about Miguel de Cervantes Cervantine Collection of the Biblioteca de Catalunya Miguel de Cervantes (1547–1616): Life and Portrait The Cervantes Project. Canavaggio, Jean. Cervantes's Birthplace Museum Miguel de Cervantes Collection From the Rare Book and Special Collection Division at the Library of Congress Cervantes's short biography in Spanish Cervantes chatbot in Spanish 1547 births 1616 deaths 16th-century dramatists and playwrights 16th-century male writers 16th-century Spanish novelists 16th-century Spanish poets 16th-century Spanish writers 17th-century male writers 17th-century Spanish dramatists and playwrights 17th-century Spanish novelists 17th-century Spanish poets 17th-century Spanish writers Accountants Barbary pirates Baroque writers Burials in Madrid Deaths from diabetes History of Algiers History of literature History of poetry History of theatre People from Alcalá de Henares Ransom Roman Catholic writers Spanish Golden Age Spanish male dramatists and playwrights Spanish male novelists Spanish male poets Spanish novelists Spanish people with disabilities Spanish Roman Catholics Spanish naval personnel Tax collectors Spanish duellists Spanish Catholic poets 16th century in Algiers

19445

https://en.wikipedia.org/wiki/Maimonides

Maimonides

Moses ben Maimon (1138–1204), commonly known as Maimonides () and also referred to by the acronym Rambam (), was a medieval Sephardic Jewish philosopher who became one of the most prolific and influential Torah scholars of the Middle Ages. In his time, he was also a preeminent astronomer and physician, serving as the personal physician of Saladin. Born in Córdoba, Almoravid Empire (present-day Spain) on Passover eve, 1138 (or 1135), he worked as a rabbi, physician and philosopher in Morocco and Egypt. He died in Egypt on 12 December 1204, whence his body was taken to the lower Galilee and buried in Tiberias. During his lifetime, most Jews greeted Maimonides' writings on Jewish law and ethics with acclaim and gratitude, even as far away as Iraq and Yemen. Yet, while Maimonides rose to become the revered head of the Jewish community in Egypt, his writings also had vociferous critics, particularly in Spain. Nonetheless, he was posthumously acknowledged as one of the foremost rabbinic decisors and philosophers in Jewish history, and his copious work comprises a cornerstone of Jewish scholarship. His fourteen-volume Mishneh Torah still carries significant canonical authority as a codification of Halacha. He is sometimes known as "ha'Nesher ha'Gadol" (The Great Eagle) in recognition of his outstanding status as a bona fide exponent of the Oral Torah. Aside from being revered by Jewish historians, Maimonides also figures very prominently in the history of Islamic and Arab sciences and he is mentioned extensively in studies. Influenced by Al-Farabi, Ibn Sina, and his contemporary Ibn Rushd, he became a prominent philosopher and polymath in both the Jewish and Islamic worlds. On his tomb is inscribed "From Moses to Moses there was none like Moses". Name His full Hebrew name is Rabbi Moshe ben Maimon (), whose acronym forms "Rambam" (). His full Arabic name is (), or () for short. The portion bin ʿUbaidallāh should not imply that Maimon's father was named Obadiah, instead bin ʿUbaidallāh is treated as Maimonides' surname, as Obadiah was the name of his earliest direct ancestor. In Latin, the Hebrew ben (son of) becomes the Greek-style patronymic suffix -ides, forming "Moses Maimonides". Biography Early years Maimonides was born 1138 in Córdoba, Andalusia, in the Muslim-ruled Almoravid Empire, during what some scholars consider to be the end of the golden age of Jewish culture in the Iberian Peninsula, after the first centuries of the Moorish rule. His father Maimon ben Joseph, was a Spanish dayyan (Jewish judge), whose family claimed direct paternal descent from Simeon ben Judah ha-Nasi, and thus from the Davidic line. Maimonides later stated that there are 38 generations between him and Judah ha-Nasi. His ancestry, going back four generations, is given in his Iggeret Teiman (Epistle to Yemen), as Moses son of Maimon the Judge (hadayan), son of Joseph the Wise (הֶחָכָם, he-chakham), son of Isaac the Rabbi (הָרָב, harav), son of Obadiah the Judge. At an early age, Maimonides developed an interest in sciences and philosophy. He read those Greek philosophers accessible in Arabic translations, and was deeply immersed in the sciences and learning of Islamic culture. Maimonides was not known as a supporter of Kabbalah, although a strong intellectual type of mysticism has been discerned in his philosophy. He expressed disapproval of poetry, the best of which he declared to be false, since it was founded on pure invention. This sage, who was revered for his personality as well as for his writings, led a busy life, and wrote many of his works while travelling or in temporary accommodation. Maimonides studied Torah under his father, who had in turn studied under Rabbi Joseph ibn Migash, a student of Isaac Alfasi. Exile Another Berber dynasty, the Almohads, conquered Córdoba in 1148 and abolished dhimmi status (i.e., state protection of non-Muslims ensured through payment of a tax, the jizya) in some of their territories. The loss of this status left the Jewish and Christian communities with conversion to Islam, death, or exile. Many Jews were forced to convert, but due to suspicion by the authorities of fake conversions, the new converts had to wear identifying clothing that set them apart and made them subject to public scrutiny. Maimonides's family, along with most other Jews, chose exile. The question whether Maimonides himself was among those who had to convert to Islam in order to save his life prior to fleeing the area, has been the subject of scholarly debate. This forced conversion was ruled legally invalid under Islamic law when brought up by a rival in Egypt. For the next ten years, Maimonides moved about in southern Spain, eventually settling in Fez in Morocco. During this time, he composed his acclaimed commentary on the Mishnah, during the years 1166–1168. Some say that his teacher in Fez was Rabbi Yehuda Ha-Cohen Ibn Susan, until he was killed in 1165. Following this sojourn in Morocco, together with two sons, he sojourned in the Land of Israel before settling in Fustat in Fatimid Caliphate-controlled Egypt around 1168. While in Cairo, he studied in a yeshiva attached to a small synagogue, which now bears his name. In the Land of Israel, he prayed at the Temple Mount. He wrote that this day of visiting the Temple Mount was a day of holiness for him and his descendants. Maimonides shortly thereafter was instrumental in helping rescue Jews taken captive during the Christian Amalric of Jerusalem's siege of the southeastern Nile Delta town of Bilbeis. He sent five letters to the Jewish communities of Lower Egypt asking them to pool money together to pay the ransom. The money was collected and then given to two judges sent to Palestine to negotiate with the Crusaders. The captives were eventually released. Death of his brother Following this triumph, the Maimonides family, hoping to increase their wealth, gave their savings to his brother, the youngest son David ben Maimon, a merchant. Maimonides directed his brother to procure goods only at the Sudanese port of ʽAydhab. After a long arduous trip through the desert, however, David was unimpressed by the goods on offer there. Against his brother's wishes, David boarded a ship for India, since great wealth was to be found in the East. Before he could reach his destination, David drowned at sea sometime between 1169 and 1177. The death of his brother caused Maimonides to become sick with grief. In a letter discovered in the Cairo Geniza, he wrote: Nagid Around 1171, Maimonides was appointed the Nagid of the Egyptian Jewish community. Arabist Shelomo Dov Goitein believes the leadership he displayed during the ransoming of the Crusader captives led to this appointment. However he was replaced by Sar Shalom ben Moses in 1173. Over the controversial course of Sar Shalom's appointment, during which Sar Shalom was accused of tax farming, Maimonides excommunicated and fought with him for several years until Maimonides was appointed Nagid in 1195. A work known as "Megillat Zutta" was written by Abraham ben Hillel, who writes a scathing description of Sar Shalom while praising Maimonides as "the light of east and west and unique master and marvel of the generation." With the loss of the family funds tied up in David's business venture, Maimonides assumed the vocation of physician, for which he was to become famous. He had trained in medicine in both Córdoba and in Fez. Gaining widespread recognition, he was appointed court physician to al-Qadi al-Fadil, the chief secretary to Sultan Saladin, then to Saladin himself; after whose death he remained a physician to the Ayyubid dynasty. In his medical writings, Maimonides described many conditions, including asthma, diabetes, hepatitis, and pneumonia, and he emphasized moderation and a healthy lifestyle. His treatises became influential for generations of physicians. He was knowledgeable about Greek and Arabic medicine, and followed the principles of humorism in the tradition of Galen. He did not blindly accept authority but used his own observation and experience. Julia Bess Frank indicates that Maimonides in his medical writings sought to interpret works of authorities so that they could become acceptable. Maimonides displayed in his interactions with patients attributes that today would be called intercultural awareness and respect for the patient's Autonomy. Although he frequently wrote of his longing for solitude in order to come closer to God and to extend his reflections – elements considered essential in his philosophy to the prophetic experience -he gave over most of his time to caring for others. In a famous letter, Maimonides describes his daily routine. After visiting the Sultan's palace, he would arrive home exhausted and hungry, where "I would find the antechambers filled with gentiles and Jews … I would go to heal them, and write prescriptions for their illnesses … until the evening … and I would be extremely weak." As he goes on to say in this letter, even on Shabbat he would receive members of the community. It is remarkable that he managed to write extended treatises, including not only medical and other scientific studies but some of the most systematically thought-through and influential treatises on halakha (rabbinic law) and Jewish philosophy of the Middle Ages. Joseph Karo later praised Maimonides, writing of him, "Maimonides is the greatest of the decisors [of Jewish law], and all communities of the Land of Israel and of Arabia and of the Maghreb base their practices after him, and have taken him upon themselves as their rabbi." In 1173/4, Maimonides wrote his famous Epistle to Yemen. It has been suggested that his "incessant travail" undermined his own health and brought about his death at 69 (although this is a normal lifespan). Death Maimonides died on 12 December 1204 (20th of Tevet 4965) in Fustat. It is widely believed that he was briefly buried in the beth midrash of the synagogue courtyard, and soon afterward, in accordance with his wishes, his remains were exhumed and taken to Tiberias, where they were re-interred. The Tomb of Maimonides on the western shore of the Sea of Galilee in Israel marks his grave. This location for his final resting-place has been debated, for in the Jewish Cairene community, a tradition holds that he remained buried in Egypt. Maimonides and his wife, the daughter of Mishael ben Yeshayahu Halevi, had one child who survived into adulthood, Abraham Maimonides, who became recognized as a great scholar. He succeeded Maimonides as Nagid and as court physician at the age of eighteen. Throughout his career, he defended his father's writings against all critics. The office of Nagid was held by the Maimonides family for four successive generations until the end of the 14th century. Maimonides is widely respected in Spain, and a statue of him was erected near the Córdoba Synagogue. Maimonides is sometimes said to be a descendant of King David, although he never made such a claim. Thirteen principles of faith In his commentary on the Mishnah (tractate Sanhedrin, chapter 10), Maimonides formulates his "13 principles of faith"; and that these principles summarized what he viewed as the required beliefs of Judaism: The existence of God. God's unity and indivisibility into elements. God's spirituality and incorporeality. God's eternity. God alone should be the object of worship. Revelation through God's prophets. The preeminence of Moses among the prophets. That the entire Torah (both the Written and Oral law) are of Divine origin and were dictated to Moses by God on Mt. Sinai. The Torah given by Moses is permanent and will not be replaced or changed. God's awareness of all human actions and thoughts. Reward of righteousness and punishment of evil. The coming of the Jewish Messiah. The resurrection of the dead. Maimonides is said to have compiled the principles from various Talmudic sources. These principles were controversial when first proposed, evoking criticism by Rabbis Hasdai Crescas and Joseph Albo, and were effectively ignored by much of the Jewish community for the next few centuries. However, these principles have become widely held and are considered to be the cardinal principles of faith for Orthodox Jews. Two poetic restatements of these principles (Ani Ma'amin and Yigdal) eventually became canonized in many editions of the "Siddur" (Jewish prayer book). The principles can be seen listed in the Siddur Edot HaMizrach, Additions for Shacharit The omission of a list of these principles as such within his later works, the Mishneh Torah and The Guide for the Perplexed, has lead some to suggest that either he retracted his earlier position, or that these principles are descriptive rather than prescriptive. Legal works With Mishneh Torah, Maimonides composed a code of Jewish law with the widest-possible scope and depth. The work gathers all the binding laws from the Talmud, and incorporates the positions of the Geonim (post-Talmudic early Medieval scholars, mainly from Mesopotamia). Later codes of Jewish law, e.g. Arba'ah Turim by Rabbi Jacob ben Asher and Shulchan Aruch by Rabbi Yosef Karo, draw heavily on Mishneh Torah: both often quote whole sections verbatim. However, it met initially with much opposition. There were two main reasons for this opposition. First, Maimonides had refrained from adding references to his work for the sake of brevity; second, in the introduction, he gave the impression of wanting to "cut out" study of the Talmud, to arrive at a conclusion in Jewish law, although Maimonides later wrote that this was not his intent. His most forceful opponents were the rabbis of Provence (Southern France), and a running critique by Rabbi Abraham ben David (Raavad III) is printed in virtually all editions of Mishneh Torah. It was still recognized as a monumental contribution to the systemized writing of halakha. Throughout the centuries, it has been widely studied and its halakhic decisions have weighed heavily in later rulings. In response to those who would attempt to force followers of Maimonides and his Mishneh Torah to abide by the rulings of his own Shulchan Aruch or other later works, Rabbi Yosef Karo wrote: "Who would dare force communities who follow the Rambam to follow any other decisor, early or late? … The Rambam is the greatest of the decisors, and all the communities of the Land of Israel and the Arabistan and the Maghreb practice according to his word, and accepted him as their rabbi." An oft-cited legal maxim from his pen is: "It is better and more satisfactory to acquit a thousand guilty persons than to put a single innocent one to death." He argued that executing a defendant on anything less than absolute certainty would lead to a slippery slope of decreasing burdens of proof, until we would be convicting merely according to the judge's caprice. Scholars specializing in the study of the history and subculture of Judaism in premodern China (Sino-Judaica) have noted surprising similarities between this work and the liturgy of the Kaifeng Jews, descendants of Persian Jewish merchants who settled in the Middle Kingdom during the early Song dynasty. Beyond scriptural similarities, Michael Pollak comments the Jews' Pentateuch was divided into 53 sections according to the Persian style. He also points out: Tzedakah (charity) One of the sections of the Mishneh Torah is the section dealing with tzedakah. In Hilkhot Matanot Aniyim (Laws about Giving to Poor People), Chapter 10:7–14, Maimonides lists his famous Eight Levels of Giving (where the first level is most preferable, and the eighth the least): Giving an interest-free loan to a person in need; forming a partnership with a person in need; giving a grant to a person in need; finding a job for a person in need; so long as that loan, grant, partnership, or job results in the person no longer living by relying upon others. Giving tzedakah anonymously to an unknown recipient via a person (or public fund) which is trustworthy, wise, and can perform acts of tzedakah with your money in a most impeccable fashion. Giving tzedakah anonymously to a known recipient. Giving tzedakah publicly to an unknown recipient. Giving tzedakah before being asked. Giving adequately after being asked. Giving willingly, but inadequately. Giving "in sadness" (giving out of pity): It is thought that Maimonides was referring to giving because of the sad feelings one might have in seeing people in need (as opposed to giving because it is a religious obligation). Other translations say "Giving unwillingly." Philosophy Through The Guide for the Perplexed (which was initially written in Arabic as Dalālat al-ḥāʾirīn) and the philosophical introductions to sections of his commentaries on the Mishna, Maimonides exerted an important influence on the Scholastic philosophers, especially on Albertus Magnus, Thomas Aquinas and Duns Scotus. He was a Jewish Scholastic. Educated more by reading the works of Arab Muslim philosophers than by personal contact with Arabian teachers, he acquired an intimate acquaintance not only with Arab Muslim philosophy, but with the doctrines of Aristotle. Maimonides strove to reconcile Aristotelianism and science with the teachings of the Torah. In his Guide for the Perplexed, he often explains the function and purpose of the statutory provisions contained in the Torah against the backdrop of the historical conditions. Maimonides is said to have been influenced by Asaph the Jew, who was the first Hebrew medical writer. Theology Maimonides equated the God of Abraham to what philosophers refer to as the Necessary Being. God is unique in the universe, and the Torah commands that one love and fear God (Deut 10:12) on account of that uniqueness. To Maimonides, this meant that one ought to contemplate God's works and to marvel at the order and wisdom that went into their creation. When one does this, one inevitably comes to love God and to sense how insignificant one is in comparison to God. This is the basis of the Torah. The principle that inspired his philosophical activity was identical to a fundamental tenet of scholasticism: there can be no contradiction between the truths which God has revealed and the findings of the human mind in science and philosophy. Maimonides primarily relied upon the science of Aristotle and the teachings of the Talmud, commonly finding basis in the former for the latter. Maimonides' admiration for the Neoplatonic commentators led him to doctrines which the later Scholastics did not accept. For instance, Maimonides was an adherent of apophatic theology. In this theology, one attempts to describe God through negative attributes. For instance, one should not say that God exists in the usual sense of the term; it can be said that God is not non-existent. We should not say that "God is wise"; but we can say that "God is not ignorant," i.e., in some way, God has some properties of knowledge. We should not say that "God is One," but we can state that "there is no multiplicity in God's being." In brief, the attempt is to gain and express knowledge of God by describing what God is not, rather than by describing what God "is." Maimonides argued adamantly that God is not corporeal. This was central to his thinking about the sin of idolatry. Maimonides insisted that all of the anthropomorphic phrases pertaining to God in sacred texts are to be interpreted metaphorically. A related tenet of Maimonidean theology is the notion that the commandments (especially those relates sacrifices) are intend to help wean the Israelites away from idolatry. Character development Maimonides taught about the developing of one's moral character. Although his life predated the modern concept of a personality, Maimonides believed that each person has an innate disposition along an ethical and emotional spectrum. Although one's disposition is often determined by factors outside of one's control, human beings have free will to choose to behave in ways that build character. He wrote, "One is obligated to conduct his affairs with others in a gentle and pleasing manner." Maimonides advised those with anti-social character traits ought to identify those traits and then make a conscious effort to behave in the opposite way. For example, an arrogant person should practice humility. If the circumstances of one's environment are such that it is impossible to behave ethically, one must move to a new location. Prophecy He agrees with "the Philosopher" (Aristotle) in teaching that the use of logic is the "right" way of thinking. In order to build an inner understanding of how to know God, every human being must, by study, meditation and uncompromising strong will, attain the degree of complete logical, spiritual and physical perfection required in the prophetic state. Here he rejects previous ideas (especially portrayed by Rabbi Yehuda Halevi in "Hakuzari") that in order to become a prophet, God must intervene. Maimonides claims that any man or woman has the potential to become a prophet (not just Jews) and that in fact it is the purpose of the human race. The problem of evil Maimonides wrote on theodicy (the philosophical attempt to reconcile the existence of a God with the existence of evil). He took the premise that an omnipotent and good God exists. In The Guide for the Perplexed, Maimonides writes that all the evil that exists within human beings stems from their individual attributes, while all good comes from a universally shared humanity (Guide 3:8). He says that there are people who are guided by higher purpose, and there are those who are guided by physicality and must strive to find the higher purpose with which to guide their actions. To justify the existence of evil, assuming God is both omnipotent and omnibenevolent, Maimonides postulates that one who created something by causing its opposite not to exist is not the same as creating something that exists; so evil is merely the absence of good. God did not create evil, rather God created good, and evil exists where good is absent (Guide 3:10). Therefore, all good is divine invention, and evil both is not and comes secondarily. Maimonides contests the common view that evil outweighs good in the world. He says that if one were to examine existence only in terms of humanity, then that person may observe evil to dominate good, but if one looks at the whole of the universe, then he sees good is significantly more common than evil (Guide 3:12). Man, he reasons, is too insignificant a figure in God's myriad works to be their primary characterizing force, and so when people see mostly evil in their lives, they are not taking into account the extent of positive Creation outside of themselves. Maimonides believes that there are three types of evil in the world: evil caused by nature, evil that people bring upon others, and evil man brings upon himself (Guide 3:12). The first type of evil Maimonides states is the rarest form, but arguably of the most necessary—the balance of life and death in both the human and animal worlds itself, he recognizes, is essential to God's plan. Maimonides writes that the second type of evil is relatively rare, and that humanity brings it upon itself. The third type of evil humans bring upon themselves and is the source of most of the ills of the world. These are the result of people's falling victim to their physical desires. To prevent the majority of evil which stems from harm we do to ourselves, we must learn how to respond to our bodily urges. On poisons and death In a separate work recently translated from Arabic, Maimonides warns against lethal drugs which he calls poisons. According to this work these poisons will cause the most severe apathies, and the decay of the human being's vigor right up to death. Skepticism of astrology Maimonides answered an inquiry concerning astrology, addressed to him from Marseille. He responded that man should believe only what can be supported either by rational proof, by the evidence of the senses, or by trustworthy authority. He affirms that he had studied astrology, and that it does not deserve to be described as a science. He ridicules the concept that the fate of a man could be dependent upon the constellations; he argues that such a theory would rob life of purpose, and would make man a slave of destiny. True beliefs versus necessary beliefs In The Guide for the Perplexed Book III, Chapter 28, Maimonides draws a distinction between "true beliefs," which were beliefs about God that produced intellectual perfection, and "necessary beliefs," which were conducive to improving social order. Maimonides places anthropomorphic personification statements about God in the latter class. He uses as an example the notion that God becomes "angry" with people who do wrong. In the view of Maimonides (taken from Avicenna), God does not become angry with people, as God has no human passions; but it is important for them to believe God does, so that they desist from doing wrong. Eschatology The Messianic era Perhaps one of Maimonides's most highly acclaimed and renowned writings is his treatise on the Messianic era, written originally in Judeo-Arabic and which he elaborates on in great detail in his Commentary on the Mishnah (Introduction to the 10th chapter of tractate Sanhedrin, also known as Pereḳ Ḥeleḳ). (Open window for text) Resurrection Religious Jews believed in immortality in a spiritual sense, and most believed that the future would include a messianic era and a resurrection of the dead. This is the subject of Jewish eschatology. Maimonides wrote much on this topic, but in most cases he wrote about the immortality of the soul for people of perfected intellect; his writings were usually not about the resurrection of dead bodies. Rabbis of his day were critical of this aspect of this thought, and there was controversy over his true views. Eventually, Maimonides felt pressured to write a treatise on the subject, known as "The Treatise on Resurrection." In it, he wrote that those who claimed that he believed the verses of the Hebrew Bible referring to the resurrection were only allegorical were spreading falsehoods. Maimonides asserts that belief in resurrection is a fundamental truth of Judaism about which there is no disagreement. While his position on the World to Come (non-corporeal eternal life as described above) may be seen as being in contradiction with his position on bodily resurrection, Maimonides resolved them with a then unique solution: Maimonides believed that the resurrection was not permanent or general. In his view, God never violates the laws of nature. Rather, divine interaction is by way of angels, whom Maimonides often regards to be metaphors for the laws of nature, the principles by which the physical universe operates, or Platonic eternal forms. [This is not always the case. In Hilchot Yesodei HaTorah Chaps. 2–4, Maimonides describes angels that are actually created beings.] Thus, if a unique event actually occurs, even if it is perceived as a miracle, it is not a violation of the world's order. In this view, any dead who are resurrected must eventually die again. In his discussion of the 13 principles of faith, the first five deal with knowledge of God, the next four deal with prophecy and the Torah, while the last four deal with reward, punishment and the ultimate redemption. In this discussion Maimonides says nothing of a universal resurrection. All he says it is that whatever resurrection does take place, it will occur at an indeterminate time before the world to come, which he repeatedly states will be purely spiritual. The World to Come Maimonides distinguishes two kinds of intelligence in man, the one material in the sense of being dependent on, and influenced by, the body, and the other immaterial, that is, independent of the bodily organism. The latter is a direct emanation from the universal active intellect; this is his interpretation of the noûs poietikós of Aristotelian philosophy. It is acquired as the result of the efforts of the soul to attain a correct knowledge of the absolute, pure intelligence of God. The knowledge of God is a form of knowledge which develops in us the immaterial intelligence, and thus confers on man an immaterial, spiritual nature. This confers on the soul that perfection in which human happiness consists, and endows the soul with immortality. One who has attained a correct knowledge of God has reached a condition of existence, which renders him immune from all the accidents of fortune, from all the allurements of sin, and from death itself. Man is in a position to work out his own salvation and his immortality. Spinoza's doctrine of immortality was strikingly similar. But Spinoza teaches that the way to attain the knowledge which confers immortality is the progress from sense-knowledge through scientific knowledge to philosophical intuition of all things sub specie æternitatis, while Maimonides holds that the road to perfection and immortality is the path of duty as described in the Torah and the rabbinic understanding of the oral law. Maimonides describes the world to come as the stage after a person lives his or her life in this world as well as the final state of existence after the Messianic Era. Some time after the resurrection of the dead, souls will live forever without bodies. They will enjoy the radiance of the Divine Presence without the need for food, drink or sexual pleasures. Maimonides and Kabbalah In The Guide for the Perplexed, Maimonides declares his intention to conceal from the average reader his explanations of Sod esoteric meanings of Torah. The nature of these "secrets" is debated. Religious Jewish rationalists, and the mainstream academic view, read Maimonides' Aristotelianism as a mutually-exclusive alternative metaphysics to Kabbalah. Some academics hold that Maimonides' project fought against the Proto-Kabbalah of his time. However, many Kabbalists and their heirs read Maimonides according to Kabbalah or as an actual covert subscriber to Kabbalah, due to the similarities between the Kabbalistic approach and Maimonides' approach toward interpreting the Bible with metaphor, Maimonides' understanding of God through attributes of action, thought and negative attributes, Maimonides' description of the roles of the imagination and intellect in life, sin, and prophesy, Maimonides' assertion that the commandments have a function that can be understood, and Maimonides' description of a 3-tiered cosmic order whereby God's will is implemented through a system of angels. According to this, he employed rationalism to defend Judaism rather than limit inquiry of Sod only to rationalism. His rationalism, if not taken as an opposition, also assisted the Kabbalists, purifying their transmitted teaching from mistaken corporeal interpretations that could have been made from Hekhalot literature, though Kabbalists held that their theosophy alone allowed human access to Divine mysteries. The Oath of Maimonides The Oath of Maimonides is a document about the medical calling and recited as a substitute for the Hippocratic Oath. It is not to be confused with a more lengthy Prayer of Maimonides. These documents may not have been written by Maimonides, but later. The Prayer appeared first in print in 1793 and has been attributed to Markus Herz, a German physician, pupil of Immanuel Kant. Views on circumcision In The Guide for the Perplexed, Maimonides proposes that two important purposes of circumcision (brit milah) are to temper sexual desire and to join in an affirmation of faith and the covenant of Abraham: Influence Maimonides' Mishneh Torah is considered by Jews even today as one of the chief authoritative codifications of Jewish law and ethics. It is exceptional for its logical construction, concise and clear expression and extraordinary learning, so that it became a standard against which other later codifications were often measured. It is still closely studied in rabbinic yeshivot (seminaries). The first to compile a comprehensive lexicon containing an alphabetically-arranged list of difficult words found in Maimonides' Mishne Torah was Tanḥum ha-Yerushalmi (1220–1291). A popular medieval saying that also served as his epitaph states, From Mosheh (of the Torah) to Mosheh (Maimonides) there was none like Mosheh. It chiefly referred to his rabbinic writings. But Maimonides was also one of the most influential figures in medieval Jewish philosophy. His brilliant adaptation of Aristotelian thought to Biblical faith deeply impressed later Jewish thinkers, and had an unexpected immediate historical impact. Some more acculturated Jews in the century that followed his death, particularly in Spain, sought to apply Maimonides's Aristotelianism in ways that undercut traditionalist belief and observance, giving rise to an intellectual controversy in Spanish and southern French Jewish circles. The intensity of debate spurred Catholic Church interventions against "heresy" and a general confiscation of rabbinic texts. In reaction, the more radical interpretations of Maimonides were defeated. At least amongst Ashkenazi Jews, there was a tendency to ignore his specifically philosophical writings and to stress instead the rabbinic and halakhic writings. These writings often included considerable philosophical chapters or discussions in support of halakhic observance; David Hartman observes that Maimonides clearly expressed "the traditional support for a philosophical understanding of God both in the Aggadah of Talmud and in the behavior of the hasid [the pious Jew]." Maimonidean thought continues to influence traditionally observant Jews. The most rigorous medieval critique of Maimonides is Hasdai Crescas's Or Adonai. Crescas bucked the eclectic trend, by demolishing the certainty of the Aristotelian world-view, not only in religious matters but also in the most basic areas of medieval science (such as physics and geometry). Crescas's critique provoked a number of 15th-century scholars to write defenses of Maimonides. A partial translation of Crescas was produced by Harry Austryn Wolfson of Harvard University in 1929. Because of his path-finding synthesis of Aristotle and Biblical faith, Maimonides had an influence on the great Christian theologian Saint Thomas Aquinas who refers to Maimonides in several of his works, including the Commentary on the Sentences. Maimonides's combined abilities in the fields of theology, philosophy and medicine make his work attractive today as a source during discussions of evolving norms in these fields, particularly medicine. An example is the modern citation of his method of determining death of the body in the controversy regarding declaration of death to permit organ donation for transplantation. Maimonides and the Modernists Maimonides remains one of the most widely debated Jewish thinkers among modern scholars. He has been adopted as a symbol and an intellectual hero by almost all major movements in modern Judaism, and has proven important to philosophers such as Leo Strauss; and his views on the importance of humility have been taken up by modern humanist philosophers. In academia, particularly within the area of Jewish Studies, the teaching of Maimonides has been dominated by traditional scholars, generally Orthodox, who place a very strong emphasis on Maimonides as a rationalist; one result is that certain sides of Maimonides's thought, including his opposition to anthropocentrism, have been obviated. There are movements in some postmodern circles to claim Maimonides for other purposes, as within the discourse of ecotheology. Maimonides's reconciliation of the philosophical and the traditional has given his legacy an extremely diverse and dynamic quality. Tributes and memorials Maimonides has been memorialized in numerous ways. For example, one of the Learning Communities at the Tufts University School of Medicine bears his name. There is also Maimonides School in Brookline, Massachusetts, Maimonides Academy School in Los Angeles, California, Lycée Maïmonide in Casablanca, the Brauser Maimonides Academy in Hollywood, Florida, and Maimonides Medical Center in Brooklyn, New York. Beit Harambam Congregation, a Sephardi synagogue in Philadelphia, Pennsylvania, is named after him. Issued from May 8, 1986 to 1985, the Series A of the Israeli New Shekel featured an illustration of Maimonides on the obverse and the place of his burial in Tiberias on the reverse on its 1-shekel bill. In 2004, conferences were held at Yale, Florida International University, Penn State, and the Rambam Hospital in Haifa, Israel, which is named after him. To commemorate the 800th anniversary of his death, Harvard University issued a memorial volume. In 1953, the Israel Postal Authority issued a postage stamp of Maimonides, pictured. In March 2008, during the Euromed Conference of Ministers of Tourism, The Tourism Ministries of Israel, Morocco and Spain agreed to work together on a joint project that will trace the footsteps of the Rambam and thus boost religious tourism in the cities of Córdoba, Fes and Tiberias. Between December 2018 and January 2019 the Israel Museum held a special exhibit dedicated to the writings of Maimonides. Works and bibliography Judaic and philosophical works Maimonides composed works of Jewish scholarship, rabbinic law, philosophy, and medical texts. Most of Maimonides's works were written in Judeo-Arabic. However, the Mishneh Torah was written in Hebrew. His Jewish texts were: Commentary on the Mishna (Arabic Kitab al-Siraj, translated into Hebrew as Pirush Hamishnayot), written in Classical Arabic using the Hebrew alphabet. This was the first full commentary ever written on the entire Mishnah, which took Maimonides seven years to complete, and it enjoyed great popularity both in its Arabic original and its medieval Hebrew translation. The commentary includes three philosophical introductions which were also highly influential: The Introduction to the Mishnah deals with the nature of the oral law, the distinction between the prophet and the sage, and the organizational structure of the Mishnah. The Introduction to Mishnah Sanhedrin, chapter ten (Perek Helek), is an eschatological essay that concludes with Maimonides's famous creed ("the thirteen principles of faith"). The Introduction to Tractate Avot (popularly called The Eight Chapters) is an ethical treatise. Sefer Hamitzvot (trans. The Book of Commandments). In this work, Maimonides lists all the 613 mitzvot traditionally contained in the Torah (Pentateuch). He describes fourteen shorashim (roots or principles) to guide his selection. Sefer Ha'shamad (letter of Martydom) Mishneh Torah, a comprehensive code of Jewish law. It is also known as Yad ha-Chazaka or simply Yad/"יד" which has the numerical value 14, representing the 14 books of the work. The Guide for the Perplexed, a philosophical work harmonising and differentiating Aristotle's philosophy and Jewish theology. Written in Judeo-Arabic, and completed between 1186 and 1190. The first translation of this work into Hebrew was done by Samuel ibn Tibbon in 1204. Teshuvot, collected correspondence and responsa, including a number of public letters (on resurrection and the afterlife, on conversion to other faiths, and Iggereth Teiman – addressed to the oppressed Jewry of Yemen). Hilkhot ha-Yerushalmi, a fragment of a commentary on the Jerusalem Talmud, identified and published by Saul Lieberman in 1947. Medical works Maimonides' achievements in the medical field are well known, and are cited by many medieval authors. One of his more important medical works is his Guide to Good Health (Regimen Sanitis) which he composed in Arabic for the Sultan al-Afdal, son of Saladin, who suffered from depression. The work was translated into Latin, and published in Florence in 1477, becoming the first medical book to appear in print there. While his prescriptions may have become obsolete, "his ideas about preventive medicine, public hygiene, approach to the suffering patient, and the preservation of the health of the soul have not become obsolete." Maimonides wrote ten known medical works in Arabic that have been translated by the Jewish medical ethicist Fred Rosner into contemporary English. Lectures, conferences and research on Maimonides, even recently in the 21st century, have been done at medical universities in Morocco. Regimen Sanitatis, Suessmann Muntner (ed.), Mossad Harav Kook: Jerusalem 1963 (translated into Hebrew by Moshe Ibn Tibbon) () The Art of Cure – Extracts from Galen (Barzel, 1992, Vol. 5) is essentially an extract of Galen's extensive writings. Commentary on the Aphorisms of Hippocrates (Rosner, 1987, Vol. 2; Hebrew: פירוש לפרקי אבוקראט) is interspersed with his own views. Medical Aphorisms of Moses (Rosner, 1989, Vol. 3) titled Fusul Musa in Arabic ("Chapters of Moses," Hebrew: פרקי משה) contains 1500 aphorisms and many medical conditions are described. Treatise on Hemorrhoids (in Rosner, 1984, Vol. 1; Hebrew: ברפואת הטחורים) discusses also digestion and food. Treatise on Cohabitation (in Rosner, 1984, Vol. 1) contains recipes as aphrodisiacs and anti-aphrodisiacs. Treatise on Asthma (Rosner, 1994, Vol. 6) discusses climates and diets and their effect on asthma and emphasizes the need for clean air. Treatise on Poisons and Their Antidotes (in Rosner, 1984, Vol. 1) is an early toxicology textbook that remained popular for centuries. Regimen of Health (in Rosner, 1990, Vol. 4; Hebrew: הנהגת הבריאות) is a discourse on healthy living and the mind-body connection. Discourse on the Explanation of Fits advocates healthy living and the avoidance of overabundance. Glossary of Drug Names (Rosner, 1992, Vol. 7) represents a pharmacopeia with 405 paragraphs with the names of drugs in Arabic, Greek, Syrian, Persian, Berber, and Spanish. Treatise on logic The Treatise on Logic (Arabic: Maqala Fi-Sinat Al-Mantiq) has been printed 17 times, including editions in Latin (1527), German (1805, 1822, 1833, 1828), French (1935), and English (1938), and in an abridged Hebrew form. The work illustrates the essentials of Aristotelian logic to be found in the teachings of the great Islamic philosophers such as Avicenna and, above all, Al-Farabi, "the Second Master," the "First Master" being Aristotle. In his work devoted to the Treatise, Rémi Brague stresses the fact that Al-Farabi is the only philosopher mentioned therein. This indicates a line of conduct for the reader, who must read the text keeping in mind Al-Farabi's works on logic. In the Hebrew versions, the Treatise is called The words of Logic which describes the bulk of the work. The author explains the technical meaning of the words used by logicians. The Treatise duly inventories the terms used by the logician and indicates what they refer to. The work proceeds rationally through a lexicon of philosophical terms to a summary of higher philosophical topics, in 14 chapters corresponding to Maimonides's birthdate of 14 Nissan. The number 14 recurs in many of Maimonides's works. Each chapter offers a cluster of associated notions. The meaning of the words is explained and illustrated with examples. At the end of each chapter, the author carefully draws up the list of words studied. Until very recently, it was accepted that Maimonides wrote the Treatise on Logic in his twenties or even in his teen years. Herbert Davidson has raised questions about Maimonides's authorship of this short work (and of other short works traditionally attributed to Maimonides). He maintains that Maimonides was not the author at all, based on a report of two Arabic-language manuscripts, unavailable to Western investigators in Asia Minor. Rabbi Yosef Kafih maintained that it is by Maimonides and newly translated it to Hebrew (as Beiur M'lekhet HaHiggayon) from the Judeo-Arabic. See also Averroes Iggeret Teman (Epistle to Yemen) Maimonides Foundation Mimouna Notes References See also Bibliography Originally published by the Jewish Publication of America, Philadelphia. See especially chapters 10 through 15. (Volume 5 translated by Uriel Barzel; foreword by Fred Rosner.) See chapters 5 through 8. reprint External links About Maimonides Video lecture on Maimonides by Dr. Henry Abramson Maimonides entry in Jewish Encyclopedia Maimonides entry in the Encyclopædia Britannica Maimonides entry in the Encyclopaedia Judaica, 2nd edition "Maimonides entry in the Internet Encyclopedia of Philosophy" Maimonides, a biography — book by David Yellin and Israel Abrahams Maimonides as a Philosopher The Influence of Islamic Thought on Maimonides "The Moses of Cairo," Article from Policy Review Rambam and the Earth: Maimonides as a Proto-Ecological Thinker – reprint on neohasid.org from The Encyclopedia of Religion and Ecology Anti-Maimonidean Demons by Jose Faur, describing the controversy surrounding Maimonides's works David Yellin and Israel Abrahams, Maimonides (1903) (full text of a biography) (PDF version) Maimonides at intellectualencounters.org Yahoo Maimonides Discussion Group The Guide: An Explanatory Commentary on Each Chapter of Maimonides' Guide of The Perplexed by Scott Michael Alexander (covers all of Book I, currently) Maimonides's works Complete Mishneh Torah online, halakhic work of Maimonides Sefer Hamitzvot, English translation Oral Readings of Mishne Torah — Free listening and Download, site also had classes in Maimonides's Iggereth Teiman Maimonides 13 Principles Intellectual Encounters – Main Thinkers – Moses Maimonides, in intellectualencounters.org Maimonides, Mishneh Torah, Autograph Draft, Egypt, 1180 British Library - Autograph responsum of Moses Maimonides, pre-eminent Jewish polymath and spiritual leader, Ilana Tahan Digitized works by Maimonides at the Leo Baeck Institute Texts by Maimonides Siddur Mesorath Moshe, a prayerbook based on the early Jewish liturgy as found in Maimonides's Mishne Tora Rambam's introduction to the Mishneh Torah (English translation) Rambam's introduction to the Commentary on the Mishnah (Hebrew language|Hebrew Fulltext) The Guide For the Perplexed by Moses Maimonides translated into English by Michael Friedländer Writings of Maimonides; manuscripts and early print editions. Jewish National and University Library Facsimile edition of Moreh Nevukhim/The Guide for the Perplexed (illuminated Hebrew manuscript, Barcelona, 1347–48). The Royal Library, Copenhagen University of Cambridge Library collection of Judeo-Arabic letters and manuscripts written by or to Maimonides. It includes the last letter his brother David sent him before drowning at sea. A. Ashur, A newly discovered medical recipe written by Maimonides M.A Friedman and A. Ashur, A newly-discovered autograph responsum of Maimonides 1130s births 1204 deaths 12th-century Arabic writers 12th-century Jews of Al-Andalus 12th-century Jewish theologians 12th-century Egyptian physicians 12th-century philosophers 12th-century rabbis 13th-century philosophers 13th-century rabbis Aristotelian philosophers Authors of books on Jewish law Commentaries on the Mishnah Court physicians Egyptian rabbis Exponents of Jewish law Jewish astronomers Jewish ethicists Jewish refugees Jews and Judaism in the Kingdom of Jerusalem Judeo-Arabic writers Medieval Jewish astronomers Medieval Jewish physicians of Spain Medieval Jewish physicians of Egypt People from Córdoba, Spain Philosophers of Al-Andalus Philosophers of Judaism Physicians of medieval Islam Sephardi rabbis Spanish rabbis Spanish refugees Rishonim University of al-Qarawiyyin alumni

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https://en.wikipedia.org/wiki/Magnetic%20resonance%20imaging

Magnetic resonance imaging

Magnetic resonance imaging (MRI) is a medical imaging technique used in radiology to form pictures of the anatomy and the physiological processes of the body. MRI scanners use strong magnetic fields, magnetic field gradients, and radio waves to generate images of the organs in the body. MRI does not involve X-rays or the use of ionizing radiation, which distinguishes it from CT and PET scans. MRI is a medical application of nuclear magnetic resonance (NMR) which can also be used for imaging in other NMR applications, such as NMR spectroscopy. MRI is widely used in hospitals and clinics for medical diagnosis, staging and follow-up of disease. Compared to CT, MRI provides better contrast in images of soft-tissues, e.g. in the brain or abdomen. However, it may be perceived as less comfortable by patients, due to the usually longer and louder measurements with the subject in a long, confining tube. Additionally, implants and other non-removable metal in the body can pose a risk and may exclude some patients from undergoing an MRI examination safely. MRI was originally called NMRI (nuclear magnetic resonance imaging), but "nuclear" was dropped to avoid negative associations. Certain atomic nuclei are able to absorb radio frequency energy when placed in an external magnetic field; the resultant evolving spin polarization can induce a RF signal in a radio frequency coil and thereby be detected. In clinical and research MRI, hydrogen atoms are most often used to generate a macroscopic polarization that is detected by antennae close to the subject being examined. Hydrogen atoms are naturally abundant in humans and other biological organisms, particularly in water and fat. For this reason, most MRI scans essentially map the location of water and fat in the body. Pulses of radio waves excite the nuclear spin energy transition, and magnetic field gradients localize the polarization in space. By varying the parameters of the pulse sequence, different contrasts may be generated between tissues based on the relaxation properties of the hydrogen atoms therein. Since its development in the 1970s and 1980s, MRI has proven to be a versatile imaging technique. While MRI is most prominently used in diagnostic medicine and biomedical research, it also may be used to form images of non-living objects, such as mummies. Diffusion MRI and Functional MRI extends the utility of MRI to capture neuronal tracts and blood flow respectively in the nervous system, in addition to detailed spatial images. The sustained increase in demand for MRI within health systems has led to concerns about cost effectiveness and overdiagnosis. Mechanism Construction and physics In most medical applications, hydrogen nuclei, which consist solely of a proton, that are in tissues create a signal that is processed to form an image of the body in terms of the density of those nuclei in a specific region. Given that the protons are affected by fields from other atoms to which they are bonded, it is possible to separate responses from hydrogen in specific compounds. To perform a study, the person is positioned within an MRI scanner that forms a strong magnetic field around the area to be imaged. First, energy from an oscillating magnetic field is temporarily applied to the patient at the appropriate resonance frequency. Scanning with X and Y gradient coils causes a selected region of the patient to experience the exact magnetic field required for the energy to be absorbed. The atoms are excited by a radio frequency (RF) pulse and the resultant signal is measured by a receiving coil. The RF signal may be processed to deduce position information by looking at the changes in RF level and phase caused by varying the local magnetic field using gradient coils. As these coils are rapidly switched during the excitation and response to perform a moving line scan, they create the characteristic repetitive noise of an MRI scan as the windings move slightly due to magnetostriction. The contrast between different tissues is determined by the rate at which excited atoms return to the equilibrium state. Exogenous contrast agents may be given to the person to make the image clearer. The major components of an MRI scanner are the main magnet, which polarizes the sample, the shim coils for correcting shifts in the homogeneity of the main magnetic field, the gradient system which is used to localize the region to be scanned and the RF system, which excites the sample and detects the resulting NMR signal. The whole system is controlled by one or more computers. MRI requires a magnetic field that is both strong and uniform to a few parts per million across the scan volume. The field strength of the magnet is measured in teslas – and while the majority of systems operate at 1.5 T, commercial systems are available between 0.2 and 7 T. Most clinical magnets are superconducting magnets, which require liquid helium to keep them very cold. Lower field strengths can be achieved with permanent magnets, which are often used in "open" MRI scanners for claustrophobic patients. Lower field strengths are also used in a portable MRI scanner approved by the FDA in 2020. Recently, MRI has been demonstrated also at ultra-low fields, i.e., in the microtesla-to-millitesla range, where sufficient signal quality is made possible by prepolarization (on the order of 10–100 mT) and by measuring the Larmor precession fields at about 100 microtesla with highly sensitive superconducting quantum interference devices (SQUIDs). T1 and T2 Each tissue returns to its equilibrium state after excitation by the independent relaxation processes of T1 (spin-lattice; that is, magnetization in the same direction as the static magnetic field) and T2 (spin-spin; transverse to the static magnetic field). To create a T1-weighted image, magnetization is allowed to recover before measuring the MR signal by changing the repetition time (TR). This image weighting is useful for assessing the cerebral cortex, identifying fatty tissue, characterizing focal liver lesions, and in general, obtaining morphological information, as well as for post-contrast imaging. To create a T2-weighted image, magnetization is allowed to decay before measuring the MR signal by changing the echo time (TE). This image weighting is useful for detecting edema and inflammation, revealing white matter lesions, and assessing zonal anatomy in the prostate and uterus. The standard display of MRI images is to represent fluid characteristics in black and white images, where different tissues turn out as follows: Diagnostics Usage by organ or system MRI has a wide range of applications in medical diagnosis and more than 25,000 scanners are estimated to be in use worldwide. MRI affects diagnosis and treatment in many specialties although the effect on improved health outcomes is disputed in certain cases. MRI is the investigation of choice in the preoperative staging of rectal and prostate cancer and has a role in the diagnosis, staging, and follow-up of other tumors, as well as for determining areas of tissue for sampling in biobanking. Neuroimaging MRI is the investigative tool of choice for neurological cancers over CT, as it offers better visualization of the posterior cranial fossa, containing the brainstem and the cerebellum. The contrast provided between grey and white matter makes MRI the best choice for many conditions of the central nervous system, including demyelinating diseases, dementia, cerebrovascular disease, infectious diseases, Alzheimer's disease and epilepsy. Since many images are taken milliseconds apart, it shows how the brain responds to different stimuli, enabling researchers to study both the functional and structural brain abnormalities in psychological disorders. MRI also is used in guided stereotactic surgery and radiosurgery for treatment of intracranial tumors, arteriovenous malformations, and other surgically treatable conditions using a device known as the N-localizer. New Artificial intelligence in healthcare tools have demonstrated higher image quality and morphometric analysis in neuroimaging with the application of a denoising system. Cardiovascular Cardiac MRI is complementary to other imaging techniques, such as echocardiography, cardiac CT, and nuclear medicine. It can be used to assess the structure and the function of the heart. Its applications include assessment of myocardial ischemia and viability, cardiomyopathies, myocarditis, iron overload, vascular diseases, and congenital heart disease. Musculoskeletal Applications in the musculoskeletal system include spinal imaging, assessment of joint disease, and soft tissue tumors. Also, MRI techniques can be used for diagnostic imaging of systemic muscle diseases including genetic muscle diseases. Liver and gastrointestinal Hepatobiliary MR is used to detect and characterize lesions of the liver, pancreas, and bile ducts. Focal or diffuse disorders of the liver may be evaluated using diffusion-weighted, opposed-phase imaging and dynamic contrast enhancement sequences. Extracellular contrast agents are used widely in liver MRI, and newer hepatobiliary contrast agents also provide the opportunity to perform functional biliary imaging. Anatomical imaging of the bile ducts is achieved by using a heavily T2-weighted sequence in magnetic resonance cholangiopancreatography (MRCP). Functional imaging of the pancreas is performed following administration of secretin. MR enterography provides non-invasive assessment of inflammatory bowel disease and small bowel tumors. MR-colonography may play a role in the detection of large polyps in patients at increased risk of colorectal cancer. Angiography Magnetic resonance angiography (MRA) generates pictures of the arteries to evaluate them for stenosis (abnormal narrowing) or aneurysms (vessel wall dilatations, at risk of rupture). MRA is often used to evaluate the arteries of the neck and brain, the thoracic and abdominal aorta, the renal arteries, and the legs (called a "run-off"). A variety of techniques can be used to generate the pictures, such as administration of a paramagnetic contrast agent (gadolinium) or using a technique known as "flow-related enhancement" (e.g., 2D and 3D time-of-flight sequences), where most of the signal on an image is due to blood that recently moved into that plane (see also FLASH MRI). Techniques involving phase accumulation (known as phase contrast angiography) can also be used to generate flow velocity maps easily and accurately. Magnetic resonance venography (MRV) is a similar procedure that is used to image veins. In this method, the tissue is now excited inferiorly, while the signal is gathered in the plane immediately superior to the excitation plane—thus imaging the venous blood that recently moved from the excited plane. Contrast agents MRI for imaging anatomical structures or blood flow do not require contrast agents since the varying properties of the tissues or blood provide natural contrasts. However, for more specific types of imaging, exogenous contrast agents may be given intravenously, orally, or intra-articularly. The most commonly used intravenous contrast agents are based on chelates of gadolinium. In general, these agents have proved safer than the iodinated contrast agents used in X-ray radiography or CT. Anaphylactoid reactions are rare, occurring in approx. 0.03–0.1%. Of particular interest is the lower incidence of nephrotoxicity, compared with iodinated agents, when given at usual doses—this has made contrast-enhanced MRI scanning an option for patients with renal impairment, who would otherwise not be able to undergo contrast-enhanced CT. Gadolinium-based contrast reagents are typically octadentate complexes of gadolinium(III). The complex is very stable (log K > 20) so that that, in use, the concentration of the un-complexed Gd3+ ions should be below the toxicity limit. The 9th place in the metal ion's coordination sphere is occupied by a water molecule which exchanges rapidly with water molecules in the reagent molecule's immediate environment, affecting the magnetic resonance relaxation time. For details see MRI contrast agent. In December 2017, the Food and Drug Administration (FDA) in the United States announced in a drug safety communication that new warnings were to be included on all gadolinium-based contrast agents (GBCAs). The FDA also called for increased patient education and requiring gadolinium contrast vendors to conduct additional animal and clinical studies to assess the safety of these agents. Although gadolinium agents have proved useful for patients with kidney impairment, in patients with severe kidney failure requiring dialysis there is a risk of a rare but serious illness, nephrogenic systemic fibrosis, which may be linked to the use of certain gadolinium-containing agents. The most frequently linked is gadodiamide, but other agents have been linked too. Although a causal link has not been definitively established, current guidelines in the United States are that dialysis patients should only receive gadolinium agents where essential and that dialysis should be performed as soon as possible after the scan to remove the agent from the body promptly. In Europe, where more gadolinium-containing agents are available, a classification of agents according to potential risks has been released. In 2008, a new contrast agent named gadoxetate, brand name Eovist (US) or Primovist (EU), was approved for diagnostic use: This has the theoretical benefit of a dual excretion path. Sequences An MRI sequence is a particular setting of radiofrequency pulses and gradients, resulting in a particular image appearance. The T1 and T2 weighting can also be described as MRI sequences. Other specialized configurations Magnetic resonance spectroscopy Magnetic resonance spectroscopy (MRS) is used to measure the levels of different metabolites in body tissues, which can be achieved through a variety of single voxel or imaging-based techniques. The MR signal produces a spectrum of resonances that corresponds to different molecular arrangements of the isotope being "excited". This signature is used to diagnose certain metabolic disorders, especially those affecting the brain, and to provide information on tumor metabolism. Magnetic resonance spectroscopic imaging (MRSI) combines both spectroscopic and imaging methods to produce spatially localized spectra from within the sample or patient. The spatial resolution is much lower (limited by the available SNR), but the spectra in each voxel contains information about many metabolites. Because the available signal is used to encode spatial and spectral information, MRSI requires high SNR achievable only at higher field strengths (3 T and above). The high procurement and maintenance costs of MRI with extremely high field strengths inhibit their popularity. However, recent compressed sensing-based software algorithms (e.g., SAMV) have been proposed to achieve super-resolution without requiring such high field strengths. Real-time MRI Real-time MRI refers to the continuous imaging of moving objects (such as the heart) in real time. One of the many different strategies developed since the early 2000s is based on radial FLASH MRI, and iterative reconstruction. This gives a temporal resolution of 20–30 ms for images with an in-plane resolution of 1.5–2.0 mm. Balanced steady-state free precession (bSSFP) imaging has a better image contrast between the blood pool and myocardium than the FLASH MRI, yet it will produce severe banding artifact when the B0 inhomogeneity is strong. Real-time MRI is likely to add important information on diseases of the heart and the joints, and in many cases may make MRI examinations easier and more comfortable for patients, especially for the patients who cannot hold their breathings or who have arrhythmia. Interventional MRI The lack of harmful effects on the patient and the operator make MRI well-suited for interventional radiology, where the images produced by an MRI scanner guide minimally invasive procedures. Such procedures use no ferromagnetic instruments. A specialized growing subset of interventional MRI is intraoperative MRI, in which an MRI is used in surgery. Some specialized MRI systems allow imaging concurrent with the surgical procedure. More typically, the surgical procedure is temporarily interrupted so that MRI can assess the success of the procedure or guide subsequent surgical work. Magnetic resonance guided focused ultrasound In guided therapy, high-intensity focused ultrasound (HIFU) beams are focused on a tissue, that are controlled using MR thermal imaging. Due to the high energy at the focus, the temperature rises to above 65 °C (150 °F) which completely destroys the tissue. This technology can achieve precise ablation of diseased tissue. MR imaging provides a three-dimensional view of the target tissue, allowing for the precise focusing of ultrasound energy. The MR imaging provides quantitative, real-time, thermal images of the treated area. This allows the physician to ensure that the temperature generated during each cycle of ultrasound energy is sufficient to cause thermal ablation within the desired tissue and if not, to adapt the parameters to ensure effective treatment. Multinuclear imaging Hydrogen has the most frequently imaged nucleus in MRI because it is present in biological tissues in great abundance, and because its high gyromagnetic ratio gives a strong signal. However, any nucleus with a net nuclear spin could potentially be imaged with MRI. Such nuclei include helium-3, lithium-7, carbon-13, fluorine-19, oxygen-17, sodium-23, phosphorus-31 and xenon-129. 23Na and 31P are naturally abundant in the body, so they can be imaged directly. Gaseous isotopes such as 3He or 129Xe must be hyperpolarized and then inhaled as their nuclear density is too low to yield a useful signal under normal conditions. 17O and 19F can be administered in sufficient quantities in liquid form (e.g. 17O-water) that hyperpolarization is not a necessity. Using helium or xenon has the advantage of reduced background noise, and therefore increased contrast for the image itself, because these elements are not normally present in biological tissues. Moreover, the nucleus of any atom that has a net nuclear spin and that is bonded to a hydrogen atom could potentially be imaged via heteronuclear magnetization transfer MRI that would image the high-gyromagnetic-ratio hydrogen nucleus instead of the low-gyromagnetic-ratio nucleus that is bonded to the hydrogen atom. In principle, heteronuclear magnetization transfer MRI could be used to detect the presence or absence of specific chemical bonds. Multinuclear imaging is primarily a research technique at present. However, potential applications include functional imaging and imaging of organs poorly seen on 1H MRI (e.g., lungs and bones) or as alternative contrast agents. Inhaled hyperpolarized 3He can be used to image the distribution of air spaces within the lungs. Injectable solutions containing 13C or stabilized bubbles of hyperpolarized 129Xe have been studied as contrast agents for angiography and perfusion imaging. 31P can potentially provide information on bone density and structure, as well as functional imaging of the brain. Multinuclear imaging holds the potential to chart the distribution of lithium in the human brain, this element finding use as an important drug for those with conditions such as bipolar disorder. Molecular imaging by MRI MRI has the advantages of having very high spatial resolution and is very adept at morphological imaging and functional imaging. MRI does have several disadvantages though. First, MRI has a sensitivity of around 10−3 mol/L to 10−5 mol/L, which, compared to other types of imaging, can be very limiting. This problem stems from the fact that the population difference between the nuclear spin states is very small at room temperature. For example, at 1.5 teslas, a typical field strength for clinical MRI, the difference between high and low energy states is approximately 9 molecules per 2 million. Improvements to increase MR sensitivity include increasing magnetic field strength and hyperpolarization via optical pumping or dynamic nuclear polarization. There are also a variety of signal amplification schemes based on chemical exchange that increase sensitivity. To achieve molecular imaging of disease biomarkers using MRI, targeted MRI contrast agents with high specificity and high relaxivity (sensitivity) are required. To date, many studies have been devoted to developing targeted-MRI contrast agents to achieve molecular imaging by MRI. Commonly, peptides, antibodies, or small ligands, and small protein domains, such as HER-2 affibodies, have been applied to achieve targeting. To enhance the sensitivity of the contrast agents, these targeting moieties are usually linked to high payload MRI contrast agents or MRI contrast agents with high relaxivities. A new class of gene targeting MR contrast agents has been introduced to show gene action of unique mRNA and gene transcription factor proteins. These new contrast agents can trace cells with unique mRNA, microRNA and virus; tissue response to inflammation in living brains. The MR reports change in gene expression with positive correlation to TaqMan analysis, optical and electron microscopy. Parallel MRI It takes time to gather MRI data using sequential applications of magnetic field gradients. Even for the most streamlined of MRI sequences, there are physical and physiologic limits to the rate of gradient switching. Parallel MRI circumvents these limits by gathering some portion of the data simultaneously, rather than in a traditional sequential fashion. This is accomplished using arrays of radiofrequency (RF) detector coils, each with a different ‘view’ of the body. A reduced set of gradient steps is applied, and the remaining spatial information is filled in by combining signals from various coils, based on their known spatial sensitivity patterns. The resulting acceleration is limited by the number of coils and by the signal to noise ratio (which decreases with increasing acceleration), but two- to four-fold accelerations may commonly be achieved with suitable coil array configurations, and substantially higher accelerations have been demonstrated with specialized coil arrays. Parallel MRI may be used with most MRI sequences. After a number of early suggestions for using arrays of detectors to accelerate imaging went largely unremarked in the MRI field, parallel imaging saw widespread development and application following the introduction of the SiMultaneous Acquisition of Spatial Harmonics (SMASH) technique in 1996–7. The SENSitivity Encoding (SENSE) and Generalized Autocalibrating Partially Parallel Acquisitions (GRAPPA) techniques are the parallel imaging methods in most common use today. The advent of parallel MRI resulted in extensive research and development in image reconstruction and RF coil design, as well as in a rapid expansion of the number of receiver channels available on commercial MR systems. Parallel MRI is now used routinely for MRI examinations in a wide range of body areas and clinical or research applications. Safety MRI is, in general, a safe technique, although injuries may occur as a result of failed safety procedures or human error. Contraindications to MRI include most cochlear implants and cardiac pacemakers, shrapnel, and metallic foreign bodies in the eyes. Magnetic resonance imaging in pregnancy appears to be safe, at least during the second and third trimesters if done without contrast agents. Since MRI does not use any ionizing radiation, its use is generally favored in preference to CT when either modality could yield the same information. Some patients experience claustrophobia and may require sedation or shorter MRI protocols. Amplitude and rapid switching of gradient coils during image acquisition may cause peripheral nerve stimulation. MRI uses powerful magnets and can therefore cause magnetic materials to move at great speeds, posing a projectile risk, and may cause fatal accidents. However, as millions of MRIs are performed globally each year, fatalities are extremely rare. Overuse Medical societies issue guidelines for when physicians should use MRI on patients and recommend against overuse. MRI can detect health problems or confirm a diagnosis, but medical societies often recommend that MRI not be the first procedure for creating a plan to diagnose or manage a patient's complaint. A common case is to use MRI to seek a cause of low back pain; the American College of Physicians, for example, recommends against this procedure as unlikely to result in a positive outcome for the patient. Artifacts An MRI artifact is a visual artifact, that is, an anomaly during visual representation. Many different artifacts can occur during magnetic resonance imaging (MRI), some affecting the diagnostic quality, while others may be confused with pathology. Artifacts can be classified as patient-related, signal processing-dependent and hardware (machine)-related. Non-medical use MRI is used industrially mainly for routine analysis of chemicals. The nuclear magnetic resonance technique is also used, for example, to measure the ratio between water and fat in foods, monitoring of flow of corrosive fluids in pipes, or to study molecular structures such as catalysts. Being non-invasive and non-damaging, MRI can be used to study the anatomy of plants, their water transportation processes and water balance. It is also applied to veterinary radiology for diagnostic purposes. Outside this, its use in zoology is limited due to the high cost; but it can be used on many species. In palaeontology it is used to examine the structure of fossils. Forensic imaging provides graphic documentation of an autopsy, which manual autopsy does not. CT scanning provides quick whole-body imaging of skeletal and parenchymal alterations, whereas MRI imaging gives better representation of soft tissue pathology. But MRI is more expensive, and more time-consuming to utilize. Moreover, the quality of MR imaging deteriorates below 10 °C. History In 1971 at Stony Brook University, Paul Lauterbur applied magnetic field gradients in all three dimensions and a back-projection technique to create NMR images. He published the first images of two tubes of water in 1973 in the journal Nature, followed by the picture of a living animal, a clam, and in 1974 by the image of the thoracic cavity of a mouse. Lauterbur called his imaging method zeugmatography, a term which was replaced by (N)MR imaging. In the late 1970s, physicists Peter Mansfield and Paul Lauterbur developed MRI-related techniques, like the echo-planar imaging (EPI) technique. Advances in semiconductor technology were crucial to the development of practical MRI, which requires a large amount of computational power. This was made possible by the rapidly increasing number of transistors on a single integrated circuit chip. Mansfield and Lauterbur were awarded the 2003 Nobel Prize in Physiology or Medicine for their "discoveries concerning magnetic resonance imaging". See also Physics of magnetic resonance imaging Amplified magnetic resonance imaging Electron paramagnetic resonance High-definition fiber tracking High-resolution computed tomography History of neuroimaging International Society for Magnetic Resonance in Medicine Jemris List of neuroimaging software Magnetic immunoassay Magnetic particle imaging Magnetic resonance elastography Magnetic Resonance Imaging (journal) Magnetic resonance microscopy Nobel Prize controversies – Physiology or medicine Rabi cycle Robinson oscillator Sodium MRI Virtopsy References Further reading External links A Guided Tour of MRI: An introduction for laypeople National High Magnetic Field Laboratory The Basics of MRI. Underlying physics and technical aspects. Video: What to Expect During Your MRI Exam from the Institute for Magnetic Resonance Safety, Education, and Research (IMRSER) Royal Institution Lecture – MRI: A Window on the Human Body A Short History of Magnetic Resonance Imaging from a European Point of View How MRI works explained simply using diagrams Real-time MRI videos: Biomedizinische NMR Forschungs GmbH. Paul C. Lauterbur, Genesis of the MRI (Magnetic Resonance Imaging) notebook, September 1971 (all pages freely available for download in variety of formats from Science History Institute Digital Collections at digital.sciencehistory.org) 1973 introductions American inventions Articles containing video clips Cryogenics Radiology Discovery and invention controversies 20th-century inventions Biomagnetics

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https://en.wikipedia.org/wiki/Group%20%28mathematics%29

Group (mathematics)

In mathematics, a group is a set equipped with an operation that combines any two elements to form a third element, in such a way that the operation is associative, an identity element exists, and every element has an inverse. These three conditions, called group axioms, hold for number systems and many other mathematical structures. For example, the integers together with the addition operation form a group. The concept of a group and its definition through the group axioms was elaborated for handling, in a unified way, essential structural properties of entities of very different mathematical nature (such as numbers, geometric shapes and polynomial roots). Because of the ubiquity of groups in numerous areas (both within and outside mathematics), some authors consider them as a central organizing principle of contemporary mathematics. Groups arise naturally in geometry for the study of symmetries and geometric transformations: the symmetries of an object form a group, called the symmetry group of the object, and the transformations of a given type form generally a group. These examples were at the origin of the concept of group (together with Galois groups). Lie groups arise as symmetry groups in geometry but appear also in the Standard Model of particle physics. The Poincaré group is a Lie group consisting of the symmetries of spacetime in special relativity. Point groups describe symmetry in molecular chemistry. The concept of a group arose from the study of polynomial equations, starting with Évariste Galois in the 1830s, who introduced the term group (, in French) for the symmetry group of the roots of an equation, now called a Galois group. After contributions from other fields such as number theory and geometry, the group notion was generalized and firmly established around 1870. Modern group theory—an active mathematical discipline—studies groups in their own right. To explore groups, mathematicians have devised various notions to break groups into smaller, better-understandable pieces, such as subgroups, quotient groups and simple groups. In addition to their abstract properties, group theorists also study the different ways in which a group can be expressed concretely, both from a point of view of representation theory (that is, through the representations of the group) and of computational group theory. A theory has been developed for finite groups, which culminated with the classification of finite simple groups, completed in 2004. Since the mid-1980s, geometric group theory, which studies finitely generated groups as geometric objects, has become an active area in group theory. Definition and illustration First example: the integers One of the more familiar groups is the set of integers together with addition. For any two integers and , the sum is also an integer; this closure property says that is a binary operation on . The following properties of integer addition serve as a model for the group axioms in the definition below. For all integers , and , one has . Expressed in words, adding to first, and then adding the result to gives the same final result as adding to the sum of and . This property is known as associativity. If is any integer, then and . Zero is called the identity element of addition because adding it to any integer returns the same integer. For every integer , there is an integer such that and . The integer is called the inverse element of the integer and is denoted . The integers, together with the operation , form a mathematical object belonging to a broad class sharing similar structural aspects. To appropriately understand these structures as a collective, the following definition is developed. Definition A group is a set together with a binary operation on , here denoted "", that combines any two elements and to form an element of , denoted , such that the following three requirements, known as group axioms, are satisfied: Associativity For all , , in , one has . Identity element There exists an element in such that, for every in , one has and . Such an element is unique (see below). It is called the identity element of the group. Inverse element For each in , there exists an element in such that and , where is the identity element. For each , the element is unique (see below); it is called the inverse of and is commonly denoted . Notation and terminology Formally, the group is the ordered pair of a set and a binary operation on this set that satisfies the group axioms. The set is called the underlying set of the group, and the operation is called the group operation or the group law. A group and its underlying set are thus two different mathematical objects. To avoid cumbersome notation, it is common to abuse notation by using the same symbol to denote both. This reflects also an informal way of thinking: that the group is the same as the set except that it has been enriched by additional structure provided by the operation. For example, consider the set of real numbers , which has the operations of addition and multiplication . Formally, is a set, is a group, and is a field. But it is common to write to denote any of these three objects. The additive group of the field is the group whose underlying set is and whose operation is addition. The multiplicative group of the field is the group whose underlying set is the set of nonzero real numbers and whose operation is multiplication. More generally, one speaks of an additive group whenever the group operation is notated as addition; in this case, the identity is typically denoted , and the inverse of an element is denoted . Similarly, one speaks of a multiplicative group whenever the group operation is notated as multiplication; in this case, the identity is typically denoted , and the inverse of an element is denoted . In a multiplicative group, the operation symbol is usually omitted entirely, so that the operation is denoted by juxtaposition, instead of . The definition of a group does not require that for all elements and in . If this additional condition holds, then the operation is said to be commutative, and the group is called an abelian group. It is a common convention that for an abelian group either additive or multiplicative notation may be used, but for a nonabelian group only multiplicative notation is used. Several other notations are commonly used for groups whose elements are not numbers. For a group whose elements are functions, the operation is often function composition ; then the identity may be denoted id. In the more specific cases of geometric transformation groups, symmetry groups, permutation groups, and automorphism groups, the symbol is often omitted, as for multiplicative groups. Many other variants of notation may be encountered. Second example: a symmetry group Two figures in the plane are congruent if one can be changed into the other using a combination of rotations, reflections, and translations. Any figure is congruent to itself. However, some figures are congruent to themselves in more than one way, and these extra congruences are called symmetries. A square has eight symmetries. These are: the identity operation leaving everything unchanged, denoted id; rotations of the square around its center by 90°, 180°, and 270° clockwise, denoted by , and , respectively; reflections about the horizontal and vertical middle line ( and ), or through the two diagonals ( and ). These symmetries are functions. Each sends a point in the square to the corresponding point under the symmetry. For example, sends a point to its rotation 90° clockwise around the square's center, and sends a point to its reflection across the square's vertical middle line. Composing two of these symmetries gives another symmetry. These symmetries determine a group called the dihedral group of degree four, denoted . The underlying set of the group is the above set of symmetries, and the group operation is function composition. Two symmetries are combined by composing them as functions, that is, applying the first one to the square, and the second one to the result of the first application. The result of performing first and then is written symbolically from right to left as ("apply the symmetry after performing the symmetry "). This is the usual notation for composition of functions. The group table lists the results of all such compositions possible. For example, rotating by 270° clockwise () and then reflecting horizontally () is the same as performing a reflection along the diagonal (). Using the above symbols, highlighted in blue in the group table: Given this set of symmetries and the described operation, the group axioms can be understood as follows. Binary operation: Composition is a binary operation. That is, is a symmetry for any two symmetries and . For example, that is, rotating 270° clockwise after reflecting horizontally equals reflecting along the counter-diagonal (). Indeed every other combination of two symmetries still gives a symmetry, as can be checked using the group table. Associativity: The associativity axiom deals with composing more than two symmetries: Starting with three elements , and of , there are two possible ways of using these three symmetries in this order to determine a symmetry of the square. One of these ways is to first compose and into a single symmetry, then to compose that symmetry with . The other way is to first compose and , then to compose the resulting symmetry with . These two ways must give always the same result, that is, For example, can be checked using the group table: Identity element: The identity element is , as it does not change any symmetry when composed with it either on the left or on the right. Inverse element: Each symmetry has an inverse: , the reflections , , , and the 180° rotation are their own inverse, because performing them twice brings the square back to its original orientation. The rotations and are each other's inverses, because rotating 90° and then rotation 270° (or vice versa) yields a rotation over 360° which leaves the square unchanged. This is easily verified on the table. In contrast to the group of integers above, where the order of the operation is immaterial, it does matter in , as, for example, but . In other words, is not abelian. History The modern concept of an abstract group developed out of several fields of mathematics. The original motivation for group theory was the quest for solutions of polynomial equations of degree higher than 4. The 19th-century French mathematician Évariste Galois, extending prior work of Paolo Ruffini and Joseph-Louis Lagrange, gave a criterion for the solvability of a particular polynomial equation in terms of the symmetry group of its roots (solutions). The elements of such a Galois group correspond to certain permutations of the roots. At first, Galois's ideas were rejected by his contemporaries, and published only posthumously. More general permutation groups were investigated in particular by Augustin Louis Cauchy. Arthur Cayley's On the theory of groups, as depending on the symbolic equation (1854) gives the first abstract definition of a finite group. Geometry was a second field in which groups were used systematically, especially symmetry groups as part of Felix Klein's 1872 Erlangen program. After novel geometries such as hyperbolic and projective geometry had emerged, Klein used group theory to organize them in a more coherent way. Further advancing these ideas, Sophus Lie founded the study of Lie groups in 1884. The third field contributing to group theory was number theory. Certain abelian group structures had been used implicitly in Carl Friedrich Gauss's number-theoretical work Disquisitiones Arithmeticae (1798), and more explicitly by Leopold Kronecker. In 1847, Ernst Kummer made early attempts to prove Fermat's Last Theorem by developing groups describing factorization into prime numbers. The convergence of these various sources into a uniform theory of groups started with Camille Jordan's (1870). Walther von Dyck (1882) introduced the idea of specifying a group by means of generators and relations, and was also the first to give an axiomatic definition of an "abstract group", in the terminology of the time. As of the 20th century, groups gained wide recognition by the pioneering work of Ferdinand Georg Frobenius and William Burnside, who worked on representation theory of finite groups, Richard Brauer's modular representation theory and Issai Schur's papers. The theory of Lie groups, and more generally locally compact groups was studied by Hermann Weyl, Élie Cartan and many others. Its algebraic counterpart, the theory of algebraic groups, was first shaped by Claude Chevalley (from the late 1930s) and later by the work of Armand Borel and Jacques Tits. The University of Chicago's 1960–61 Group Theory Year brought together group theorists such as Daniel Gorenstein, John G. Thompson and Walter Feit, laying the foundation of a collaboration that, with input from numerous other mathematicians, led to the classification of finite simple groups, with the final step taken by Aschbacher and Smith in 2004. This project exceeded previous mathematical endeavours by its sheer size, in both length of proof and number of researchers. Research concerning this classification proof is ongoing. These days, group theory is still a highly active mathematical branch, impacting many other fields, as the examples below illustrate. Elementary consequences of the group axioms Basic facts about all groups that can be obtained directly from the group axioms are commonly subsumed under elementary group theory. For example, repeated applications of the associativity axiom show that the unambiguity of generalizes to more than three factors. Because this implies that parentheses can be inserted anywhere within such a series of terms, parentheses are usually omitted. Individual axioms may be "weakened" to assert only the existence of a left identity and left inverses. From these one-sided axioms, one can prove that the left identity is also a right identity and a left inverse is also a right inverse for the same element. Since they define exactly the same structures as groups, collectively the axioms are no weaker. Uniqueness of identity element The group axioms imply that the identity element is unique: If and are identity elements of a group, then . Therefore it is customary to speak of the identity. Uniqueness of inverses The group axioms also imply that the inverse of each element is unique: If a group element has both and as inverses, then Therefore it is customary to speak of the inverse of an element. Division Given elements and of a group , there is a unique solution in to the equation , namely . (One usually avoids using fraction notation unless is abelian, because of the ambiguity of whether it means or .) It follows that for each in , the function that maps each to is a bijection; it is called left multiplication by or left translation by . Similarly, given and , the unique solution to is . For each , the function that maps each to is a bijection called right multiplication by or right translation by . Basic concepts When studying sets, one uses concepts such as subset, function, and quotient by an equivalence relation. When studying groups, one uses instead subgroups, homomorphisms, and quotient groups. These are the appropriate analogues that take into account the existence of the group structure. Group homomorphisms Group homomorphisms are functions that respect group structure; they may be used to relate two groups. A homomorphism from a group to a group is a function such that It would be natural to require also that respect identities, , and inverses, for all in . However, these additional requirements need not be included in the definition of homomorphisms, because they are already implied by the requirement of respecting the group operation. The identity homomorphism of a group is the homomorphism that maps each element of to itself. An inverse homomorphism of a homomorphism is a homomorphism such that and , that is, such that for all in and such that for all in . An isomorphism is a homomorphism that has an inverse homomorphism; equivalently, it is a bijective homomorphism. Groups and are called isomorphic if there exists an isomorphism . In this case, can be obtained from simply by renaming its elements according to the function ; then any statement true for is true for , provided that any specific elements mentioned in the statement are also renamed. The collection of all groups, together with the homomorphisms between them, form a category, the category of groups. Subgroups Informally, a subgroup is a group contained within a bigger one, : it has a subset of the elements of , with the same operation. Concretely, this means that the identity element of must be contained in , and whenever and are both in , then so are and , so the elements of , equipped with the group operation on restricted to , indeed form a group. In the example of symmetries of a square, the identity and the rotations constitute a subgroup , highlighted in red in the group table of the example: any two rotations composed are still a rotation, and a rotation can be undone by (i.e., is inverse to) the complementary rotations 270° for 90°, 180° for 180°, and 90° for 270°. The subgroup test provides a necessary and sufficient condition for a nonempty subset H of a group G to be a subgroup: it is sufficient to check that for all elements and in . Knowing a group's subgroups is important in understanding the group as a whole. Given any subset of a group , the subgroup generated by consists of products of elements of and their inverses. It is the smallest subgroup of containing . In the example of symmetries of a square, the subgroup generated by and consists of these two elements, the identity element , and the element . Again, this is a subgroup, because combining any two of these four elements or their inverses (which are, in this particular case, these same elements) yields an element of this subgroup. Cosets In many situations it is desirable to consider two group elements the same if they differ by an element of a given subgroup. For example, in the symmetry group of a square, once any reflection is performed, rotations alone cannot return the square to its original position, so one can think of the reflected positions of the square as all being equivalent to each other, and as inequivalent to the unreflected positions; the rotation operations are irrelevant to the question whether a reflection has been performed. Cosets are used to formalize this insight: a subgroup determines left and right cosets, which can be thought of as translations of by an arbitrary group element . In symbolic terms, the left and right cosets of , containing an element , are The left cosets of any subgroup form a partition of ; that is, the union of all left cosets is equal to and two left cosets are either equal or have an empty intersection. The first case happens precisely when , i.e., when the two elements differ by an element of . Similar considerations apply to the right cosets of . The left cosets of may or may not be the same as its right cosets. If they are (that is, if all in satisfy ), then is said to be a normal subgroup. In , the group of symmetries of a square, with its subgroup of rotations, the left cosets are either equal to , if is an element of itself, or otherwise equal to (highlighted in green in the group table of ). The subgroup is normal, because and similarly for the other elements of the group. (In fact, in the case of , the cosets generated by reflections are all equal: .) Quotient groups In some situations the set of cosets of a subgroup can be endowed with a group law, giving a quotient group or factor group. For this to be possible, the subgroup has to be normal. Given any normal subgroup N, the quotient group is defined by where the notation is read as " modulo ". This set inherits a group operation (sometimes called coset multiplication, or coset addition) from the original group : the product of two cosets and is for all and in . This definition is motivated by the idea (itself an instance of general structural considerations outlined above) that the map that associates to any element its coset should be a group homomorphism, or by general abstract considerations called universal properties. The coset serves as the identity in this group, and the inverse of in the quotient group is The elements of the quotient group are itself, which represents the identity, and . The group operation on the quotient is shown in the table. For example, . Both the subgroup , as well as the corresponding quotient are abelian, whereas is not abelian. Building bigger groups by smaller ones, such as from its subgroup and the quotient is abstracted by a notion called semidirect product. Quotient groups and subgroups together form a way of describing every group by its presentation: any group is the quotient of the free group over the generators of the group, quotiented by the subgroup of relations. The dihedral group , for example, can be generated by two elements and (for example, , the right rotation and the vertical (or any other) reflection), which means that every symmetry of the square is a finite composition of these two symmetries or their inverses. Together with the relations the group is completely described. A presentation of a group can also be used to construct the Cayley graph, a device used to graphically capture discrete groups. Sub- and quotient groups are related in the following way: a subgroup of corresponds to an injective map , for which any element of the target has at most one element that maps to it. The counterpart to injective maps are surjective maps (every element of the target is mapped onto), such as the canonical map Interpreting subgroup and quotients in light of these homomorphisms emphasizes the structural concept inherent to these definitions. In general, homomorphisms are neither injective nor surjective. The kernel and image of group homomorphisms and the first isomorphism theorem address this phenomenon. Examples and applications Examples and applications of groups abound. A starting point is the group of integers with addition as group operation, introduced above. If instead of addition multiplication is considered, one obtains multiplicative groups. These groups are predecessors of important constructions in abstract algebra. Groups are also applied in many other mathematical areas. Mathematical objects are often examined by associating groups to them and studying the properties of the corresponding groups. For example, Henri Poincaré founded what is now called algebraic topology by introducing the fundamental group. By means of this connection, topological properties such as proximity and continuity translate into properties of groups. For example, elements of the fundamental group are represented by loops. The second image shows some loops in a plane minus a point. The blue loop is considered null-homotopic (and thus irrelevant), because it can be continuously shrunk to a point. The presence of the hole prevents the orange loop from being shrunk to a point. The fundamental group of the plane with a point deleted turns out to be infinite cyclic, generated by the orange loop (or any other loop winding once around the hole). This way, the fundamental group detects the hole. In more recent applications, the influence has also been reversed to motivate geometric constructions by a group-theoretical background. In a similar vein, geometric group theory employs geometric concepts, for example in the study of hyperbolic groups. Further branches crucially applying groups include algebraic geometry and number theory. In addition to the above theoretical applications, many practical applications of groups exist. Cryptography relies on the combination of the abstract group theory approach together with algorithmical knowledge obtained in computational group theory, in particular when implemented for finite groups. Applications of group theory are not restricted to mathematics; sciences such as physics, chemistry and computer science benefit from the concept. Numbers Many number systems, such as the integers and the rationals, enjoy a naturally given group structure. In some cases, such as with the rationals, both addition and multiplication operations give rise to group structures. Such number systems are predecessors to more general algebraic structures known as rings and fields. Further abstract algebraic concepts such as modules, vector spaces and algebras also form groups. Integers The group of integers under addition, denoted , has been described above. The integers, with the operation of multiplication instead of addition, do not form a group. The associativity and identity axioms are satisfied, but inverses do not exist: for example, is an integer, but the only solution to the equation in this case is , which is a rational number, but not an integer. Hence not every element of has a (multiplicative) inverse. Rationals The desire for the existence of multiplicative inverses suggests considering fractions Fractions of integers (with nonzero) are known as rational numbers. The set of all such irreducible fractions is commonly denoted . There is still a minor obstacle for , the rationals with multiplication, being a group: because zero does not have a multiplicative inverse (i.e., there is no such that ), is still not a group. However, the set of all nonzero rational numbers does form an abelian group under multiplication, also denoted Associativity and identity element axioms follow from the properties of integers. The closure requirement still holds true after removing zero, because the product of two nonzero rationals is never zero. Finally, the inverse of is , therefore the axiom of the inverse element is satisfied. The rational numbers (including zero) also form a group under addition. Intertwining addition and multiplication operations yields more complicated structures called rings and – if division by other than zero is possible, such as in – fields, which occupy a central position in abstract algebra. Group theoretic arguments therefore underlie parts of the theory of those entities. Modular arithmetic Modular arithmetic for a modulus defines any two elements and that differ by a multiple of to be equivalent, denoted by . Every integer is equivalent to one of the integers from to , and the operations of modular arithmetic modify normal arithmetic by replacing the result of any operation by its equivalent representative. Modular addition, defined in this way for the integers from to , forms a group, denoted as or , with as the identity element and as the inverse element of . A familiar example is addition of hours on the face of a clock, where 12 rather than 0 is chosen as the representative of the identity. If the hour hand is on and is advanced hours, it ends up on , as shown in the illustration. This is expressed by saying that is congruent to "modulo " or, in symbols, For any prime number , there is also the multiplicative group of integers modulo . Its elements can be represented by to . The group operation, multiplication modulo , replaces the usual product by its representative, the remainder of division by . For example, for , the four group elements can be represented by . In this group, , because the usual product is equivalent to : when divided by it yields a remainder of . The primality of ensures that the usual product of two representatives is not divisible by , and therefore that the modular product is nonzero. The identity element is represented and associativity follows from the corresponding property of the integers. Finally, the inverse element axiom requires that given an integer not divisible by , there exists an integer such that that is, such that evenly divides . The inverse can be found by using Bézout's identity and the fact that the greatest common divisor In the case above, the inverse of the element represented by is that represented by , and the inverse of the element represented by is represented , as . Hence all group axioms are fulfilled. This example is similar to above: it consists of exactly those elements in the ring that have a multiplicative inverse. These groups, denoted , are crucial to public-key cryptography. Cyclic groups A cyclic group is a group all of whose elements are powers of a particular element . In multiplicative notation, the elements of the group are where means , stands for , etc. Such an element is called a generator or a primitive element of the group. In additive notation, the requirement for an element to be primitive is that each element of the group can be written as In the groups introduced above, the element is primitive, so these groups are cyclic. Indeed, each element is expressible as a sum all of whose terms are . Any cyclic group with elements is isomorphic to this group. A second example for cyclic groups is the group of th complex roots of unity, given by complex numbers satisfying . These numbers can be visualized as the vertices on a regular -gon, as shown in blue in the image for . The group operation is multiplication of complex numbers. In the picture, multiplying with corresponds to a counter-clockwise rotation by 60°. From field theory, the group is cyclic for prime : for example, if , is a generator since , , , and . Some cyclic groups have an infinite number of elements. In these groups, for every non-zero element , all the powers of are distinct; despite the name "cyclic group", the powers of the elements do not cycle. An infinite cyclic group is isomorphic to , the group of integers under addition introduced above. As these two prototypes are both abelian, so are all cyclic groups. The study of finitely generated abelian groups is quite mature, including the fundamental theorem of finitely generated abelian groups; and reflecting this state of affairs, many group-related notions, such as center and commutator, describe the extent to which a given group is not abelian. Symmetry groups Symmetry groups are groups consisting of symmetries of given mathematical objects, principally geometric entities, such as the symmetry group of the square given as an introductory example above, although they also arise in algebra such as the symmetries among the roots of polynomial equations dealt with in Galois theory (see below). Conceptually, group theory can be thought of as the study of symmetry. Symmetries in mathematics greatly simplify the study of geometrical or analytical objects. A group is said to act on another mathematical object X if every group element can be associated to some operation on X and the composition of these operations follows the group law. For example, an element of the (2,3,7) triangle group acts on a triangular tiling of the hyperbolic plane by permuting the triangles. By a group action, the group pattern is connected to the structure of the object being acted on. In chemical fields, such as crystallography, space groups and point groups describe molecular symmetries and crystal symmetries. These symmetries underlie the chemical and physical behavior of these systems, and group theory enables simplification of quantum mechanical analysis of these properties. For example, group theory is used to show that optical transitions between certain quantum levels cannot occur simply because of the symmetry of the states involved. Not only are groups useful to assess the implications of symmetries in molecules, but surprisingly they also predict that molecules sometimes can change symmetry. The Jahn–Teller effect is a distortion of a molecule of high symmetry when it adopts a particular ground state of lower symmetry from a set of possible ground states that are related to each other by the symmetry operations of the molecule. Likewise, group theory helps predict the changes in physical properties that occur when a material undergoes a phase transition, for example, from a cubic to a tetrahedral crystalline form. An example is ferroelectric materials, where the change from a paraelectric to a ferroelectric state occurs at the Curie temperature and is related to a change from the high-symmetry paraelectric state to the lower symmetry ferroelectric state, accompanied by a so-called soft phonon mode, a vibrational lattice mode that goes to zero frequency at the transition. Such spontaneous symmetry breaking has found further application in elementary particle physics, where its occurrence is related to the appearance of Goldstone bosons. Finite symmetry groups such as the Mathieu groups are used in coding theory, which is in turn applied in error correction of transmitted data, and in CD players. Another application is differential Galois theory, which characterizes functions having antiderivatives of a prescribed form, giving group-theoretic criteria for when solutions of certain differential equations are well-behaved. Geometric properties that remain stable under group actions are investigated in (geometric) invariant theory. General linear group and representation theory Matrix groups consist of matrices together with matrix multiplication. The general linear group consists of all invertible -by- matrices with real entries. Its subgroups are referred to as matrix groups or linear groups. The dihedral group example mentioned above can be viewed as a (very small) matrix group. Another important matrix group is the special orthogonal group . It describes all possible rotations in dimensions. Rotation matrices in this group are used in computer graphics. Representation theory is both an application of the group concept and important for a deeper understanding of groups. It studies the group by its group actions on other spaces. A broad class of group representations are linear representations in which the group acts on a vector space, such as the three-dimensional Euclidean space . A representation of a group on an -dimensional real vector space is simply a group homomorphism from the group to the general linear group. This way, the group operation, which may be abstractly given, translates to the multiplication of matrices making it accessible to explicit computations. A group action gives further means to study the object being acted on. On the other hand, it also yields information about the group. Group representations are an organizing principle in the theory of finite groups, Lie groups, algebraic groups and topological groups, especially (locally) compact groups. Galois groups Galois groups were developed to help solve polynomial equations by capturing their symmetry features. For example, the solutions of the quadratic equation are given by Each solution can be obtained by replacing the sign by or ; analogous formulae are known for cubic and quartic equations, but do not exist in general for degree 5 and higher. In the quadratic formula, changing the sign (permuting the resulting two solutions) can be viewed as a (very simple) group operation. Analogous Galois groups act on the solutions of higher-degree polynomials and are closely related to the existence of formulas for their solution. Abstract properties of these groups (in particular their solvability) give a criterion for the ability to express the solutions of these polynomials using solely addition, multiplication, and roots similar to the formula above. Modern Galois theory generalizes the above type of Galois groups by shifting to field theory and considering field extensions formed as the splitting field of a polynomial. This theory establishes—via the fundamental theorem of Galois theory—a precise relationship between fields and groups, underlining once again the ubiquity of groups in mathematics. Finite groups A group is called finite if it has a finite number of elements. The number of elements is called the order of the group. An important class is the symmetric groups , the groups of permutations of objects. For example, the symmetric group on 3 letters is the group of all possible reorderings of the objects. The three letters ABC can be reordered into ABC, ACB, BAC, BCA, CAB, CBA, forming in total 6 (factorial of 3) elements. The group operation is composition of these reorderings, and the identity element is the reordering operation that leaves the order unchanged. This class is fundamental insofar as any finite group can be expressed as a subgroup of a symmetric group for a suitable integer , according to Cayley's theorem. Parallel to the group of symmetries of the square above, can also be interpreted as the group of symmetries of an equilateral triangle. The order of an element in a group is the least positive integer such that , where represents that is, application of the operation "" to copies of . (If "" represents multiplication, then corresponds to the th power of .) In infinite groups, such an may not exist, in which case the order of is said to be infinity. The order of an element equals the order of the cyclic subgroup generated by this element. More sophisticated counting techniques, for example, counting cosets, yield more precise statements about finite groups: Lagrange's Theorem states that for a finite group the order of any finite subgroup divides the order of . The Sylow theorems give a partial converse. The dihedral group of symmetries of a square is a finite group of order 8. In this group, the order of is 4, as is the order of the subgroup that this element generates. The order of the reflection elements etc. is 2. Both orders divide 8, as predicted by Lagrange's theorem. The groups of multiplication modulo a prime have order . Classification of finite simple groups Mathematicians often strive for a complete classification (or list) of a mathematical notion. In the context of finite groups, this aim leads to difficult mathematics. According to Lagrange's theorem, finite groups of order , a prime number, are necessarily cyclic groups and hence also abelian. Groups of order can also be shown to be abelian, a statement which does not generalize to order , as the non-abelian group of order above shows. Computer algebra systems can be used to list small groups, but there is no classification of all finite groups. An intermediate step is the classification of finite simple groups. A nontrivial group is called simple if its only normal subgroups are the trivial group and the group itself. The Jordan–Hölder theorem exhibits finite simple groups as the building blocks for all finite groups. Listing all finite simple groups was a major achievement in contemporary group theory. 1998 Fields Medal winner Richard Borcherds succeeded in proving the monstrous moonshine conjectures, a surprising and deep relation between the largest finite simple sporadic group (the "monster group") and certain modular functions, a piece of classical complex analysis, and string theory, a theory supposed to unify the description of many physical phenomena. Groups with additional structure An equivalent definition of group consists of replacing the "there exist" part of the group axioms by operations whose result is the element that must exist. So, a group is a set equipped with a binary operation (the group operation), a unary operation (which provides the inverse) and a nullary operation, which has no operand and results in the identity element. Otherwise, the group axioms are exactly the same. This variant of the definition avoids existential quantifiers and is used in computing with groups and for computer-aided proofs. This way of defining groups lends itself to generalizations such as the notion of a group objects in a category. Briefly this is an object (that is, examples of another mathematical structure) which comes with transformations (called morphisms) that mimic the group axioms. Topological groups Some topological spaces may be endowed with a group law. In order for the group law and the topology to interweave well, the group operations must be continuous functions; informally, and must not vary wildly if and vary only a little. Such groups are called topological groups, and they are the group objects in the category of topological spaces. The most basic examples are the group of real numbers under addition and the group of nonzero real numbers under multiplication. Similar examples can be formed from any other topological field, such as the field of complex numbers or the field of -adic numbers. These examples are locally compact, so they have Haar measures and can be studied via harmonic analysis. Other locally compact topological groups include the group of points of an algebraic group over a local field or adele ring; these are basic to number theory Galois groups of infinite algebraic field extensions are equipped with the Krull topology, which plays a role in infinite Galois theory. A generalization used in algebraic geometry is the étale fundamental group. Lie groups A Lie group is a group that also has the structure of a differentiable manifold; informally, this means that it looks locally like a Euclidean space of some fixed dimension. Again, the definition requires the additional structure, here the manifold structure, to be compatible: the multiplication and inverse maps are required to be smooth. A standard example is the general linear group introduced above: it is an open subset of the space of all -by- matrices, because it is given by the inequality where denotes an -by- matrix. Lie groups are of fundamental importance in modern physics: Noether's theorem links continuous symmetries to conserved quantities. Rotation, as well as translations in space and time are basic symmetries of the laws of mechanics. They can, for instance, be used to construct simple models—imposing, say, axial symmetry on a situation will typically lead to significant simplification in the equations one needs to solve to provide a physical description. Another example is the group of Lorentz transformations, which relate measurements of time and velocity of two observers in motion relative to each other. They can be deduced in a purely group-theoretical way, by expressing the transformations as a rotational symmetry of Minkowski space. The latter serves—in the absence of significant gravitation—as a model of spacetime in special relativity. The full symmetry group of Minkowski space, i.e., including translations, is known as the Poincaré group. By the above, it plays a pivotal role in special relativity and, by implication, for quantum field theories. Symmetries that vary with location are central to the modern description of physical interactions with the help of gauge theory. An important example of a gauge theory is the Standard Model, which describes three of the four known fundamental forces and classifies all known elementary particles. Generalizations In abstract algebra, more general structures are defined by relaxing some of the axioms defining a group. For example, if the requirement that every element has an inverse is eliminated, the resulting algebraic structure is called a monoid. The natural numbers (including zero) under addition form a monoid, as do the nonzero integers under multiplication , see above. There is a general method to formally add inverses to elements to any (abelian) monoid, much the same way as is derived from , known as the Grothendieck group. Groupoids are similar to groups except that the composition need not be defined for all and . They arise in the study of more complicated forms of symmetry, often in topological and analytical structures, such as the fundamental groupoid or stacks. Finally, it is possible to generalize any of these concepts by replacing the binary operation with an arbitrary -ary one (i.e., an operation taking arguments). With the proper generalization of the group axioms this gives rise to an -ary group. The table gives a list of several structures generalizing groups. See also List of group theory topics Notes Citations References General references , Chapter 2 contains an undergraduate-level exposition of the notions covered in this article. , an elementary introduction. . . . . . . Special references . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Historical references . . . (Galois work was first published by Joseph Liouville in 1843). . . . . . . External links Algebraic structures Symmetry

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https://en.wikipedia.org/wiki/Marilyn%20Manson%20%28band%29

Marilyn Manson (band)

Marilyn Manson is an American rock band formed by namesake lead singer Marilyn Manson and guitarist Daisy Berkowitz in Fort Lauderdale, Florida, in 1989. Originally named Marilyn Manson & the Spooky Kids, they gained a local cult following in South Florida in the early 1990s with their theatrical live performances. In 1993, they were the first act signed to Trent Reznor's Nothing Records label. Until 1996, the name of each member was created by combining the first name of a female sex symbol and the last name of a serial killer, for example Marilyn Monroe and Charles Manson. Their lineup has changed between many of their album releases; the eponymous lead singer is the only remaining original member. In the past, band members dressed in outlandish makeup and costumes, and engaged in intentionally shocking behavior both onstage and off. Their lyrics often received criticism for their anti-religious sentiment and references to sex, violence and drugs, while their live performances were frequently called offensive and obscene. On several occasions, protests and petitions led to the group being blocked from performing, with at least three US states passing legislation banning the group from performing at state-owned venues. They released a number of platinum-selling albums, including Antichrist Superstar (1996) and Mechanical Animals (1998). These albums, along with their highly stylized music videos and worldwide touring, brought public recognition to Marilyn Manson. In 1999, news media, infamously, falsely blamed the band for influencing the perpetrators of the Columbine High School massacre. As this controversy began to wane throughout the 2000s, so did the band's mainstream popularity. Despite this, Jon Wiederhorn of MTV, in June 2003, referred to Marilyn Manson as "the only true artist today". Marilyn Manson is widely regarded as being one of the most iconic and controversial figures in rock music, with the band and its lead singer influencing numerous other groups and musicians, both in metal-associated acts and also in wider popular culture. VH1 ranked Marilyn Manson as the seventy-eighth best rock band on their 100 Great Artists of Hard Rock. They were inducted into the Kerrang! Hall of Fame in 2000, and have been nominated for four Grammy Awards. In the U.S., the band has seen ten of its releases debut in the top ten, including two number-one albums. Marilyn Manson have sold in excess of 50 million records worldwide. History Formation and The Spooky Kids (1989–1992) In 1989, Brian Warner was a college student working towards a degree in journalism at Broward College, gaining experience by writing music articles for the South Florida lifestyle magazine 25th Parallel. It was in this capacity that he met several of the musicians to whom his own band would later be compared, including My Life with the Thrill Kill Kult and Trent Reznor of Nine Inch Nails. That December, he met Scott Putesky, who proposed the two form a band, after reading some lyrics and poems written by Warner. Warner, guitarist Putesky and bassist Brian Tutunick recorded their first demo tape as Marilyn Manson & the Spooky Kids in 1990, taking on the stage names of Marilyn Manson, Daisy Berkowitz and Olivia Newton Bundy, respectively. Bundy left the band soon after, and was replaced by Gidget Gein, born Brad Stewart. They were later joined on keyboard by Stephen Bier, who called himself Madonna Wayne Gacy. In 1991, drummer Fred Streithorst joined the band under the name Sara Lee Lucas. The stage names adopted by each member were representative of a concept the band considered central: the dichotomy of good and evil, and the existence of both, together, in every whole. "Marilyn Monroe had a dark side", explained Manson in his autobiography, "just as Charles Manson has a good, intelligent side." Over the next six years, all of the band's members would adopt names that combined the first name of a female sex symbol and the surname of a serial killer. Images of both Monroe and Manson, as well as of other famous and infamous figures, were common in the band's early promotional materials. The Spooky Kids' popularity in the area grew quickly and because of the band's highly visual concerts, which drew from performance art and used many shock techniques such as "naked women nailed to a cross, a child in a cage, or bloody animal body parts." Band members variously performed in women's clothing or bizarre costumes; and, for lack of a professional pyrotechnician, would set their own stage props on fire. The band would contrast these theatrics with elements drawn from their youth: characters from 1970s and '80s children's television made regular, often grotesquely altered, appearances on band flyers and newsletters, and were frequently sampled in their music. They continued to perform and release cassettes – shortening their name to Marilyn Manson in 1992 – until the summer of 1993, when they drew the attention of Reznor, who had just founded his own label, Nothing Records. Portrait of an American Family and Smells Like Children (1993–1995) Reznor offered the band a contract with the label, as well as an opening slot supporting Nine Inch Nails on their upcoming "Self Destruct Tour". After accepting both offers, recording sessions for their debut studio album began in July 1993 with Swans producer Roli Mosimann at Criteria Studios in Miami, Florida. Recording a selection of new songs along with material from their Spooky Kids repertoire, the first version of their debut, titled The Manson Family Album, was completed by the end of the month. However, it was not well received. The band's members, along with Reznor, criticized Mosimann's production as being flat, lifeless and poorly representative of the band's live performances. At the same time, Gidget Gein had begun to lose control of his addiction to heroin. Before reworking the album, the band played two shows in Florida under the name Mrs. Scabtree. This band featured Manson on drums, Gacy on keyboard, Berkowitz on guitar, and Jessicka from Jack Off Jill sharing vocal duties with Jeordie White of Miami thrash band Amboog-a-Lard. Four other local musicians, bassists Mark Dubin of Sister Venus and Patrick Joyce from The Itch, guitarist Miles Hie and violinist Mary Karlzen were also involved. Reznor agreed to rework production of The Manson Family Album in October 1993 at Record Plant Studios in Los Angeles. Gein, who had been hospitalized after his fourth heroin overdose, was not invited to participate, and was fired from the band soon after, replaced by White, of Amboog-a-Lard, who undertook the alias Twiggy Ramirez. After seven weeks of mixing, re-recording and remixing, the album – now titled Portrait of an American Family – was presented to Nothing's parent label Interscope. The album was released on July 19, 1994 and peaked at number thirty-five on Billboards Top Heatseekers album chart. The band began its first national headlining tour in December 1994, with Jack Off Jill opening. During the band's stint as opening act on the Nine Inch Nails tour, Manson met Church of Satan founder Dr. Anton LaVey. LaVey bestowed the title of "Reverend" on Manson– meaning a person who is revered by the church, and not necessarily one who dedicates their life to preaching the religion to others, as with a priest or minister. Manson would use this title in the liner notes of the band's following album, citing himself as "Reverend Marilyn Manson". In March 1995, the band began a two-month tour, this time with Monster Voodoo Machine as support. This would be drummer Sara Lee Lucas's last tour with the band. Kenneth Wilson, better known by his stage name Ginger Fish, then joined the group before they embarked on a tour with rock band Danzig and metal band Korn. The band then relocated to the new home of Nothing Studios in New Orleans to begin work on remixes and b-sides for Portraits third single, "Dope Hat", releasing a music video inspired by the boat ride scene from the 1971 movie Willy Wonka & the Chocolate Factory. The proposed single eventually developed into Smells Like Children, which included the band's version of the Eurythmics' "Sweet Dreams (Are Made of This)", their first hit; the song's music video was placed in heavy rotation on MTV, in stark contrast with the "Dope Hat" video, which the same channel had banished to late-night airplay only a few months prior. Antichrist Superstar (1996–1997) The band's second studio album, Antichrist Superstar, was released on October 8, 1996. It was recorded at Nothing Studios with Reznor, Manson, Sean Beavan and former Skinny Puppy member and longtime producer Dave Ogilvie sharing co-production duties; members of both Marilyn Manson and Nine Inch Nails took part in its recording. The process of making the album was a long and difficult one, highlighted by experiments involving sleep deprivation and near-constant drug use, in an effort to create a violent and hostile environment suited to the album's content. During this time, antagonism between band members was high. Daisy Berkowitz, the band's founding guitarist, departed the band partway through the album's recording process, with Twiggy performing much of the album's guitar work. Timothy Linton responded to an advert seeking Berkowitz's replacement. He would form a close relationship with Madonna Wayne Gacy, who was responsible for the inclusion of one of the major sources of inspiration for the album: Kabbalah. Breaking with the six-year tradition of naming band members after female icons and serial killers, Zim Zum was chosen as Linton's stage name. It was derived from the Lurianic Kabbalah concept of Tzimtzum. "The Beautiful People" was released as the album's lead single. It created enough anticipation for Antichrist Superstar that the album debuted at number three on the Billboard 200 with first-week sales of 132,000 copies. Manson also appeared on the cover of Rolling Stone, who awarded the band their 'Best New Artist' accolade in 1997. The year-long "Dead to the World Tour" followed, which was the band's longest and widest-ranging tour yet. In the US, however, the band was receiving more attention than ever before, and not all of it was positive. As the tour was getting underway, the band found itself the target of bipartisan congressional hearings, led by conservative violent entertainment watchdog group Empower America (now known as FreedomWorks) co-directors Republican Secretary of Education William Bennett and Democratic U.S. Senator Joseph Lieberman, to determine the effects, if any, of violent lyrics on young listeners. In addition, nearly every performance of the tour was picketed by religious organizations. In July 1997, Manson collaborated with British trip hop group Sneaker Pimps for the single "Long Hard Road Out of Hell" from the soundtrack to the 1997 film Spawn. The band released their second EP, Remix & Repent, on November 25, 1997. It featured new versions of Antichrist Superstars four singles: "The Beautiful People", "Tourniquet", "Antichrist Superstar" and "Man That You Fear". In February 1998, Manson released his autobiography, The Long Hard Road Out of Hell, as well as a live video entitled Dead to the World. It was also confirmed that Antichrist Superstar would be the first installment in a concept album trilogy which the band called their triptych. Mechanical Animals (1998–1999) The band released the second part of their triptych, Mechanical Animals, on September 15, 1998. Co-produced by the band's lead singer with Sean Beavan and Michael Beinhorn, the album moved away from the industrial rock production of its predecessor and was strongly influenced by 1970s glam rock, particularly David Bowie's 1974 album Diamond Dogs. Billy Corgan served as an unofficial consultant to the band during the early development of the album. After playing a few songs for him, Corgan advised them that "This is definitely the right direction" but to "go all the way with it. Don't just hint at it", referring to its inclusion of glam influences. To suit their new musical style, the band also recast itself as a glam rock outfit, setting aside the "rotting-corpse chic" of the previous era in favor of attire more suited to the genre, incorporating leather, platform boots and brightly dyed hair. The band also relocated from New Orleans to Los Angeles, while Zim Zum was replaced by guitarist John Lowery of 2wo, whose stage name, John 5, was given to him by Manson during their first lunch meeting. Interscope's promotion of the album was massive, with the label erecting enormous billboards of the lead singer as an androgynous extraterrestrial in both Times Square and Sunset Strip. Repeated appearances on MTV and other networks helped propel the album's lead single, "The Dope Show", to number twelve on Billboard's Mainstream Rock chart, becoming the band's highest-charting single yet. The song's music video was critically acclaimed, winning two awards at the 1998 Billboard Music Video Awards as well as the Best Cinematography award at the 1999 MTV VMA's; while the song was also nominated for Best Hard Rock Performance at the 41st Annual Grammy Awards. The album would go on to debut at number one on the Billboard 200, with first week sales of over 223,000. After a brief promotional campaign, the band set out on the "Beautiful Monsters Tour" with Hole. The tour would be a problematic one, and was marred by frequent on–and–off stage exchanges between Manson and Hole vocalist Courtney Love. Private disputes also arose over the tour's financial arrangements, with Hole unwittingly financing most of Manson's production costs, which were disproportionately high relative to Hole's. The tour was to include thirty-seven shows spanning over a two-month period, although Hole left after taking part in just nine of the scheduled dates. A broken ankle from Manson also forced the postponement of the next two shows, with the remainder of the tour being renamed "Rock Is Dead" and Jack Off Jill and Nashville Pussy taking over select opening slots. The final four dates of the tour were canceled out of respect for the victims of the Columbine High School massacre. The latter half of 1999 and much of 2000 was a period of relative silence for the band, who refused to take part in interviews and retreated from public life. They shelved plans for a proposed single and music video for their cover of AC/DC's "Highway to Hell", which appeared on the soundtrack to Detroit Rock City. They spent this period writing and recording in a secluded studio in Death Valley, with only the live album The Last Tour on Earth appearing during this time. A studio outtake from Antichrist Superstar, titled "Astonishing Panorama of the Endtimes", served as its only single. Holy Wood (In the Shadow of the Valley of Death) (2000–2001) Holy Wood (In the Shadow of the Valley of Death) was released on November 11, 2000. Produced by the band's lead singer with Dave Sardy, the album also features programming and pre-production editing by Bon Harris of Nitzer Ebb. The band wrote over 100 songs for the album, which was a return to the darker, more abrasive sound of Antichrist Superstar. Much of its content was written in response to the Columbine massacre, with the album's third single, "The Nobodies", directly referring to the shootings. Described by the band's frontman as the third part of a trilogy which began with Antichrist Superstar and continued in Mechanical Animals, its overarching theme is an exploration of the relationship between death and fame in American culture, and its lyrics and artwork contain many references to John F. Kennedy and Lee Harvey Oswald, John Lennon and Mark David Chapman, and Abraham Lincoln and John Wilkes Booth. The "Guns, God and Government Tour" elaborated on Holy Woods central theme, and with its logo – a rifle and handguns arranged to resemble the Christian cross – Manson made no attempt to conceal what he saw as the source of that fascination. The band also revealed that within their concept album trilogy, Holy Wood serves as prequel to Mechanical Animals and Antichrist Superstar despite the latter two preceding Holy Wood in release date. Each album contains its own distinct storyline, which can be linked together to create a larger overarching storyline encompassing all three. Manson has offered this much in the way of an interpretation: "[Holy Wood is about] wanting to fit into a world that didn't want me, and fighting really hard to get there. [The album's deepest elements] are idealism and the desire to start a revolution. If you begin with Holy Wood, then Mechanical Animals really talks about how that revolution gets taken away from you and turned into a product, and then Antichrist Superstar is where you're given a choice to decide if you're going to be controlled by the power that you created or if you want to destroy yourself and then start over. It just becomes a cycle." The band initially declined to join the 2001 lineup of Ozzy Osbourne's Ozzfest, as its June 21 date in Denver would mark their first appearance in Colorado since the Columbine massacre. After the band announced on their website that they would perform in Denver, they were protested by religious groups. The band planned to "balance out" their "violent lyrics" by quoting biblical texts, "so we can examine the virtues of wonderful Christian stories of disease, murder, adultery, suicide and child sacrifice." The tour was documented by a DVD of the same name, which was released on October 29, 2002. In addition to a compilation style concert [songs from multiple individual shows edited together to appear as a single performance], it includes a thirty-minute short film titled "The Death Parade". This was followed by Guns, God and Government – Live in LA in 2009, which depicts their performance of January 13, 2001 at Los Angeles's Grand Olympic Auditorium in its entirety. Earlier in 2001, the band released a cover of Gloria Jones's "Tainted Love" on the soundtrack to Not Another Teen Movie. The song became the band's biggest international hit yet, peaking at number one in numerous European territories. In 2002, Jonathan Davis of Korn invited Marilyn Manson to record vocals on a track titled "Redeemer", which was released on his soundtrack to Queen of the Damned. Manson also appeared in Michael Moore's 2002 documentary, Bowling for Columbine; his appearance was filmed on the same day as their Denver Ozzfest performance. When Moore asked what Manson would have said to the students at Columbine, he replied, "I wouldn't say a single word to them. I would listen to what they have to say, and that's what no one did." The Golden Age of Grotesque and Lest We Forget (2002–2006) With the "triptych" of previous albums complete, the band was free to begin a fresh project. In 2002, Manson created an original score for the Resident Evil film with former KMFDM multi-instrumentalist Tim Skold. Soon after, Skold became an official band member when Twiggy Ramirez amicably left the group, citing creative differences. After finding inspiration through Manson's girlfriend Dita Von Teese in the swing and burlesque movements of 1920s Berlin, the band recorded The Golden Age of Grotesque, which was released on May 7, 2003 and debuted atop the Billboard 200 album chart, selling over 118,000 copies on its first week. It was also an international success, particularly in Europe, where it sold over 400,000 copies on its first week, and topping various national record charts, as well as Billboard'''s European Albums Chart. The album also appeared on several critics' year-end lists, and won a 2003 Metal Edge Readers' Choice Award for "Album of the Year". Eschewing the lyrical depth and symbolism found on Holy Wood, the album was relatively straightforward: in an extended metaphor, Manson compares his own often-criticized work to the Entartete Kunst banned by the Nazi regime. Lyrically, Manson utilizes the narrative mode of stream of consciousness throughout the album to examine the human psyche in times of crisis, specifically focusing on the mindset of lunatics and children, as, according to Manson, "they don't follow the rules [of society]." Several songs incorporate elements commonly found in playground chants and nursery rhymes, which Manson would "pervert into something ugly and lurid." The work of Kurt Weill was also noted as an influence, along with the lucid dreams the singer was having during its production, with Manson explaining that he would "wake up and say, 'I want to write a song that sounds like a stampeding elephant,' or 'I want to write a song that sounds like a burning piano.'" Manson began his long-term collaboration with Austrian-Irish artist Gottfried Helnwein, working together on several multi-media projects associated with the album, including the exhibitions and installation art projects featured at the album's launch party at The Key Club in Los Angeles, the album artwork, the music video to lead single "mOBSCENE", as well as the artwork which accompanied Manson's essay for The Rock and Roll Hall of Fame and Museum. Limited edition copies of the album included a DVD titled Doppelherz (Double-heart), a 25-minute surrealist short film directed by Manson which featured art direction by Helnwein. Another world tour followed, "Grotesk Burlesk", which furthered the album's Weimar Republic-inspired theme by adding Helnwein-created stage dressing and elements of German Kabarett to the group's performances. Manson and the band members began appearing both on-and off-stage in designer suits created by Jean-Paul Gaultier.Lest We Forget: The Best Of was released on September 28, 2004 and was referred to by Manson as a "farewell" compilation. It was the last album released under Nothing Records, as the label was dissolved following a lawsuit filed by Reznor against his former manager and business partner, John Malm. The compilation was supported by the "Against All Gods Tour", as well as a single–a cover of Depeche Mode's "Personal Jesus". It was the first and only tour to feature Mark Chaussee of Rob Halford's Fight on lead guitar, replacing John 5, whose relationship with Manson had soured over the previous year. Former Nine Inch Nails drummer Chris Vrenna also replaced Ginger Fish, who fractured his wrist, skull and cheekbone after falling several feet off his drum riser during a performance at a German awards ceremony. Eat Me, Drink Me (2007–2008) By late 2005, the band had composed 18 new songs, but work on their sixth studio album was halted when Manson focused his attention on various film and art projects, including the development of his screenplay, Phantasmagoria: The Visions of Lewis Carroll, as well as a minor role in the Lucy Liu movie Rise: Blood Hunter. He also launched a self-proclaimed art movement, the Celebritarian Corporation, which included artist Gottfried Helnwein, fashion designer Steven Klein and director Anthony Silva, as well as announcing plans to open an art gallery and publish a book of his paintings. It was after opening the Celebritarian Corporation Gallery Of Fine Art on Melrose Avenue in 2006 that work started on new material, with Manson writing lyrics over Skold's already existing compositions. The resulting material was composed and recorded entirely by Skold, and does not feature writing or performance contributions from any other member of the band. Its content is largely inspired by personal troubles relating to Manson's failed marriage to Von Teese, and his burgeoning relationship with then-19-year old actress Evan Rachel Wood. The band made their debut appearance on The Tonight Show with Jay Leno on October 31, 2006, performing their cover of "This Is Halloween" from a deluxe edition re-release of The Nightmare Before Christmas soundtrack. This would be their last performance featuring longtime keyboardist Madonna Wayne Gacy, who would go on to file a $20m lawsuit against the band the following year for unpaid "partnership proceeds". The album was preceded by the release of a single, "Heart-Shaped Glasses (When the Heart Guides the Hand)", whose music video was shot using director James Cameron's 3D Fusion Camera System technology. The video caused controversy upon release, with several sources claiming that it featured genuine footage of Manson and Wood engaged in sexual intercourse. Wood was reportedly paid "the highest [music] video salary in history" to appear in the video. Eat Me, Drink Me was released on June 5, 2007, and entered the Billboard 200 at number eight with first week sales of 88,000 copies. It also peaked in the top ten of most major international album charts, as well as at number two on Billboards European Albums Chart. "Putting Holes in Happiness" was released as the album's second single. To promote the album, the band embarked on the nine-month "Rape of the World Tour", which featured Skold on lead guitar, former The Prodigy bassist Rob Holliday and longtime drummer Ginger Fish; while Vrenna rejoined the band as their live keyboardist. The first leg of the tour was a co-headlining set with American thrash metal band Slayer, with support coming from Bleeding Through. In November 2007, Manson confirmed that he and Skold had begun work on the band's next studio album, with Slayer's Kerry King, former The Smashing Pumpkins guitarist James Iha and Nick Zinner of Yeah Yeah Yeahs set to feature. By the beginning of 2008, however, Twiggy Ramirez had rejoined the band as bassist, resulting in the exit of Skold, with Holliday moving from bass to lead guitar for the remaining duration of the tour. Future collaborations with Skold were not ruled out. The High End of Low (2009–2010) In 2008, former Limp Bizkit guitarist Wes Borland joined the band for their headlining show at the 2008 ETP Fest in South Korea. However, Borland left the group to reunite with Limp Bizkit, later saying that he was reluctant to be a "hired gun", citing the band's refusal to record any of the nine songs he submitted for their upcoming album. R&B singer Ne-Yo claimed in early December that he would hold writing sessions with the band's frontman on new material, although Manson denied it, saying that he had "never even met Ne-Yo. I can assure him that he would not want to be associated with something this godless."The High End of Low was recorded throughout 2008, with Manson recording vocals at his Hollywood Hills home studio between November and January 5, 2009. Produced by Manson, Twiggy and Vrenna with Antichrist Superstar and Mechanical Animals co-producer Sean Beavan, Manson described the album as containing "extreme" autobiographical content relating to the dissolution of his engagement to Wood, and as being "very ruthless, heavy and violent". Its fifteen songs appear on the album in the order they were written. The penultimate track, "Into the Fire", portrays the vocalist's mental state on Christmas Day, wherein he attempted to contact Wood 158 times, cutting himself with a razorblade on the face or hands for each corresponding attempt. The album's final song, "15", was completed on Manson's January 5 birthday – hence the name. Manson utilized his entire home as a canvas to document the disintegration of the relationship, writing its lyrics on walls and coupling them with paintings and drawings relating to Wood, as well as used condoms, bags of cocaine and other drug paraphernalia. "We're from America" was released as a free download on the band's website on March 27, 2009, while a Hot Topic-exclusive CD single followed two weeks later. After playing an instrumental version of "Arma-goddamn-motherfuckin-geddon" to Interscope's A&R department, it was chosen as the album's official lead single, with an employee telling Manson, "This is gonna be a hit!". Manson then quipped to the employee, "Well, I'm glad that you have no consideration for what I [might] put on top of it." A heavily censored version of the profanity-laced track – re-titled to "Arma ... geddon" – was serviced to radio from April 13, and peaked at number thirty-seven on Billboards Mainstream Rock chart, becoming their lowest-peaking single in the process. The album was released on May 20, 2009 and debuted at number four on the Billboard 200 with sales of over 49,000 copies, their lowest opening week figure since The Last Tour on Earth debuted with 26,000 copies in 1999. Prior to The High End of Low's release, Manson made a series of disparaging comments regarding Interscope and its artistic censorship; as well as its then-CEO Jimmy Iovine, who Manson said "wasn't smart enough to understand what [we] do", and publicly claiming that the label "cares more about Vitamin Water [the private equity venture of Interscope-signed 50 Cent] than music." Reznor – who, as of 2015, remains friends with Iovine – responded by calling Manson a "dopey clown" and claiming that "He is a malicious guy and will step on anybody's face to succeed and cross any line of decency." While promoting the album in the UK, Manson appeared inebriated in a series of interviews. An interview for Alan Carr: Chatty Man recorded during this time remains unaired, due to graphic language and content. A music video for "Running to the Edge of the World" – in which Manson beats a Wood lookalike to death – was released on November 4 and was condemned as a perceived glorification of violence against women. The band parted ways with Interscope on December 3. They settled the lawsuit filed by former keyboardist Stephen Bier (aka M.W. Gacy), with Manson's insurance company paying Bier's attorney's fees and Bier receiving no monetary value. Born Villain (2011–2013) Upon parting with Interscope, Manson said "a lot of the creative control on which my hands were tied [has been regained]", while stating that the band had been writing new material while touring their previous album. Manson attested that its lyrical content would be "more romantic" yet "self-abusive", and described its sonic elements as being "suicide death metal". Fred Sablan joined the band in July 2010. By October, Twiggy described the album as being "almost done", and opined that "It's our best record yet. I mean, everyone always says that, but I think this is our best work so far. It's kind of like a little more of a punk rock Mechanical Animals, without sounding too pretentious." The following month, it was announced that the band had signed a joint-venture deal with London-based indie label Cooking Vinyl. As part of the deal, the band would retain creative control over their artistic direction, with the band and label sharing profits equally after the label recoups costs associated with marketing, promotion and distribution. For much of 2011, Manson removed himself from the public spotlight and ceased almost all communication with fans, only taking a break from his self-imposed sequestration to appear in the music video for "Tempat Ku" by Brunei rock band D'Hask. On February 24, longtime drummer Ginger Fish announced his resignation from the group. On May 22, their website underwent a complete overhaul. A 26-second clip of an unreleased song, tentatively titled "I am among no one", was uploaded to their Vimeo account, along with a new logo. After being impressed by his directorial work on one of Kid Cudi's music videos, Manson employed actor Shia LaBeouf to direct a short film entitled Born Villain. Contrary to media reports that the project would be a "making-of" video documenting the album's recording, Born Villain was a surrealist short featuring a previously unreleased track, "Overneath the Path of Misery". Containing numerous references to Macbeth, it was inspired by Jodorowsky's The Holy Mountain and Luis Buñuel and Salvador Dalí's 1929 silent film Un Chien Andalou. To promote the project, LaBeouf and his girlfriend, photographer Karolyn Pho, graffitied areas of LA with its artwork. LaBeouf and Pho later photographed their work, and released it as a limited edition book titled Campaign, which was bundled with a DVD of the film. In November, Vrenna departed the band to focus on other production work, whilst indicating that production of their eighth studio album was "largely completed". The album was preceded by the release of "No Reflection", which Manson leaked to KROQ-FM on March 7, 2012. Cooking Vinyl CEO Martin Goldschmidt called the leak a "masterstroke", saying "we had all these exclusives lined up around the world, and then Manson blew them all. We're already getting more radio play than the whole of the last record." The song went on to peak at number twenty-six on the Mainstream Rock chart, spending fourteen weeks on the chart, and was their best-performing single there since "Personal Jesus" in 2004. Born Villain was released worldwide from April 25, debuting at number ten on the Billboard 200 and atop both the Independent Albums and Top Hard Rock Albums charts. The album spent two weeks at number one on the UK Rock Albums Chart. A remix EP for "Slo-Mo-Tion" followed on November 5. The band embarked on the seventeen-month "Hey Cruel World... Tour" from the end of April, which was interspersed by co-headlining tours with Rob Zombie ("Twins of Evil") and Alice Cooper ("Masters of Madness"). The Pale Emperor (2014–2016) In August 2012, it was announced that Manson would play a fictionalized version of himself in a four-episode arc of the sixth season of TV series Californication. While filming its season finale at the Greek Theatre in LA, Manson met the series' composer, Tyler Bates, and the two discussed a potential collaboration. Manson confirmed that production started on new material by May 2013. Four months later, Sablan announced that he had left the group. One track from the album, "Cupid Carries a Gun" was used as the opening theme to Salem from its second episode onwards, which premiered on US television on April 27. In October, a large portion of the album track "Killing Strangers" was predominantly featured in the Keanu Reeves movie John Wick. "Third Day of a Seven Day Binge" was released for free download on the band's website on October 26, and served as the album's first official single. The band performed several new songs live for the first time as they played a handful of concerts around southern California in October and early November. "Deep Six" was released on December 16, with a music video following three days later. It went on to peak at number eight on Billboards Mainstream Rock chart, making it the band's highest-ever peaking single on Billboard. "Cupid Carries a Gun" was released as the album's third official single on January 8, 2015. The Pale Emperor was released on January 15 in the US. It is dedicated to Manson's mother, who died in May 2014 after an eight-year battle with Alzheimer's disease and dementia. It was both a critical and commercial success, debuting at number eight on the Billboard 200 with sales of over 51,000 copies, their largest opening-week figure since Eat Me, Drink Me in 2007. Numerous publications referred to it as the band's best album in over a decade. It would go on to appear on several 'best of 2015' lists, with Rolling Stone dubbing it the 'best metal album' of 2015. Music videos for both "The Mephistopheles of Los Angeles" and "Third Day of a Seven Day Binge" were released in May and July, respectively. The band embarked on the nearly-two year-long The Hell Not Hallelujah Tour in support of the album, which was interspersed by a co-headlining tour with The Smashing Pumpkins titled The End Times. In February 2016, Manson contributed vocals to a version of David Bowie's "Cat People (Putting Out Fire)" on Countach (For Giorgio), a tribute album to Giorgio Moroder curated by Shooter Jennings. A 16-bit music video for the song was released five months later. Also in February, details were announced of another co-headlining tour, this time with Slipknot. The tour was scheduled to begin on June 9 in Salt Lake City and consist of thirty-four dates in Amphitheatres throughout North America, with support from Of Mice & Men. However, the first twelve dates of the tour were postponed after an examination revealed that Corey Taylor had broken two vertebrae in his neck. The tour began on June 28 in Nashville, Tennessee, with the postponed shows rescheduled for August. Heaven Upside Down (2017–2018) While touring with The Smashing Pumpkins, Manson indicated a "strong possibility" of working with Corgan on new material, and also revealed plans to collaborate with Korn frontman Jonathan Davis on a "Southern-sounding, acoustic" project. Manson announced in an interview with KEGL in November that work had begun on the band's tenth studio album, while also confirming that Twiggy, Bates and Sharone would all be involved in its recording. Antichrist Superstar was reissued on cassette exclusively in Europe as part of Record Store Day 2016. To celebrate the twentieth anniversary of the album's release, Manson indicated that a special edition of Antichrist Superstar would be issued on October 20, although this failed to materialize. Among its bonus content would have been a previously unreleased film, created during the "Dead to the World Tour". On July 19, Manson announced that the band's tenth studio album had the working title SAY10, and predicted a release date of Valentine's Day 2017. In September, Manson confirmed that the band were "putting the finishing touches" on the album, and said: "It's not very much in any way like The Pale Emperor. It's pretty violent in its nature for some reason, and it's not emotional in the same way. It's got a chip on its shoulder. I can't wait for people to hear it. I think they're going to be quite surprised." On November 8 – the day of the 2016 US presidential election – Manson released a teaser clip of a new music video created alongside Final Girl director Tyler Shields. It featured scenes of Manson brandishing a knife while standing over a decapitated corpse. According to The Daily Beasts Marlow Stern, the decapitated figure is dressed to resemble Donald Trump. Manson would later say that the figure in the video "wasn't anyone except if you wanted it to be them." The album was not released in February 2017, and instead a long series of cryptic videos were posted to Marilyn Manson's personal Instagram account over the course of just under 2 months, before Manson revealed on May 9 that the album had been named Heaven Upside Down. The band began their Heaven Upside Down Tour on July 20, 2017 in Budapest. The first single from the album, "We Know Where You Fucking Live", was released on September 11, with the album due to follow on October 6. A second single, "Kill4Me", was released on September 20. The band's founding guitarist, Daisy Berkowitz, died on October 22, 2017 at the age of 49; he had been diagnosed with Stage IV colorectal cancer in 2013. Two days later, Manson announced he had "decided to part ways" with bassist Twiggy, after a rape allegation was made against Twiggy by his former girlfriend, Jack Off Jill vocalist Jessicka; for the rest of the tour, Juan Alderete (formerly of Racer X and The Mars Volta) joined. In July 2018, Manson embarked on the Twins of Evil: The Second Coming Tour in the US with co-headliner Rob Zombie and special guest Deadly Apples. We Are Chaos (2019–present) In March 2019, Manson announced that he was nearly finished recording his next studio album and that country musician Shooter Jennings was involved. Later that year, drummer Gil Sharone announced he was leaving the band to pursue "other current and future projects", with former Black Flag drummer Brandon Pertzborn hired as his replacement. Manson also revealed that Bates is no longer involved with the group, and that the album would be produced by Jennings and feature contributions from his drummer Jamie Douglass. In July, Manson embarked on the Twins of Evil: Hell Never Dies Tour in the US and Canada with co-headliner Rob Zombie, followed by festivals and headline dates with support from Deadly Apples. The band released their cover of The Doors' "The End" on streaming music services in November, with a limited edition vinyl scheduled to be issued on March 6, 2020. The song was recorded for the soundtrack to the upcoming miniseries The Stand, based on Stephen King's novel of the same name. Manson is set to appear in the miniseries. The band are set to appear as the opening act for Ozzy Osbourne during his No More Tours II series, a North American tour beginning in May 2020. However the tour was eventually cancelled along with Manson's performances after Ozzy Osbourne was diagnosed with Parkinson's disease. On January 13, 2020, live bassist Juan Alderete was involved in a bicycle accident which left him with a diffuse axonal injury, a type of traumatic brain injury. A GoFundMe page has been created to help cover the cost of his medical expenses. On April 29, Manson and Jennings confirmed they had finished work on the band's eleventh studio album, with both calling it a "masterpiece". On July 28, Manson announced that a new single titled "We Are Chaos" would be released the following day. The next day, the track was released alongside the announcement of the band's upcoming eleventh studio album titled We Are Chaos set for release on September 11, 2020. At the same time, the band revealed the album cover and the track list. The album debuted at number eight on the Billboard 200, making it their tenth top ten release on the chart. In February 2021, Loma Vista Recordings announced they would not promote or participate in the distribution of any future recordings released by the band, following former girlfriend Evan Rachel Wood and various other accusations that the band's vocalist sexually and psychologically abused them. In November 2021, former band member Tim Skold announced he was again working on new material with Marilyn Manson. Musical style Although the band's music has often been labeled as shock rock by mainstream media, Manson disputes the use of the label, preferring instead to identify his band's music as rock and roll. Marilyn Manson's music has been classified under many genres, including industrial metal, industrial rock, industrial dance, post-industrial, alternative metal, progressive metal, hard rock, nu metal, electronic music, glam rock, gothic metal, death metal, blues rock and pop. Although Marilyn Manson's music has often been labelled gothic rock, AllMusic contends that the band merely borrows from gothic rock's imagery. From 1996 to his departure in 2002, Twiggy was their chief musical contributor, co-writing many of the band's biggest hits with Manson during this period. Despite never receiving a writing credit, drummer Ginger Fish provided substantial pre-production assistance to both Manson and Twiggy while composing demos for Antichrist Superstar. His drums loops and sound effects would go on to be predominantly featured on several tracks, most notably "The Beautiful People". John 5 and Tim Skold were also prevalent composers, while The Pale Emperor and Heaven Upside Down were composed entirely by Tyler Bates. All of the band's lyrics are written by Manson, whose songwriting style varies between albums. Utilizing aesthetics often found within spoken-word poetry, his writing features comedy, puns, and double entendres, and he makes frequent use of alliteration. The band's witticisms often take the form of neologisms, delivered several at a time in rapid-fire succession. Lyrical content has emerged from a wide range of subjects, including love, sex and sexuality, sexual abuse, consumerism, politics, revenge, suicide, capitalism, violence and mortality, as well as the Bible and Greek mythology. Manson predominantly delivers lyrics in a melodic fashion, although he invariably enhances his vocal register by utilizing several extended vocal techniques, such as vocal fry, screaming, growling and crooning. His voice can emit five different tones simultaneously, which mixing engineer Robert Carranza discovered can form a pentagram when imported into a phrasal analyzer. He possesses a baritone vocal type. His lowest bass note of A1 can be heard in "Arma-goddamn-motherfuckin-geddon", while his highest note, an E6 – the first note of the whistle register – can be heard on the Born Villain song "Hey, Cruel World ...". Influences Manson's earliest musical memory was listening to Kiss during a family road trip; he has since cited the band as a major influence. As a child, he would imitate Kiss's kabuki-like makeup and draw pictures of Gene Simmons and Peter Criss. The earliest incarnation of the band was conceived by Manson at a Fort Lauderdale nightclub called The Reunion Room in December 1989, where he was introduced to Big Black's Songs About Fucking by his future keyboardist, Stephen Bier. Daisy Berkowitz played in several punk rock outfits before co-founding the Spooky Kids, and was influenced by acts such as the New York Dolls and the Jim Carroll Band, whose "People Who Died" was covered regularly at live shows. As its only permanent member, Manson heads the direction of the band's sound; he has been influenced by the shock rock of artists such as Arthur Brown, Alice Cooper, The Doors, Black Sabbath/Ozzy Osbourne and Iggy Pop. His biggest influence, however, was David Bowie, whom he credited with "changing [his] life forever". The two have often been compared by mainstream media, particularly in relation to their ability to shift genre and style – replete with a new look and musical philosophy – with each studio release. Manson's two favorite songs are Bowie's "Quicksand" and "Ashes to Ashes". For several years, Manson sang Bowie's "Cat People (Putting Out Fire)" as a vocal warm up exercise before live performances; he later covered the song with outlaw country musician Shooter Jennings. During their period at Nothing Records, the band's sound gathered sonic elements from other outfits on that label's roster, particularly Nine Inch Nails, with Reznor co-producing their first two studio albums. Manson has cited Queen as an influence on the band's more melodic work, while new wave and synthpop acts such as Depeche Mode and Gary Numan have been noted as influencing their electronic material. Manson said of the latter, "I was always into his apocalyptic fiction lyrics. He pioneered electronic dance music." The work of gothic rock acts such as The Cure and Bauhaus has also been cited, with Twiggy saying that "as far as guitar and bass combinations go", Bauhaus's Daniel Ash and David J were "a really big influence". Manson's other influences include the Beatles, Rihanna, White Zombie, Johnny Cash, Jimi Hendrix, N.W.A, The Smashing Pumpkins, Justin Timberlake, Led Zeppelin, the occult, horror comics, and the King James Bible. Impact and legacy Marilyn Manson have been credited with creating some of the most recognizable and visually defining music videos of the MTV Generation, with some commentators suggesting that their music videos played a significant role in the band's commercial success. Their work frequently incorporates surrealist iconography and purposefully grotesque imagery, and their style has been emulated by other performers. Joseph Schafer of Stereogum said in 2015 that "perhaps no single artist has mastered the music video as a medium so well [as Marilyn Manson]." They have received numerous awards and accolades for their work. Three of their videos – "Sweet Dreams (Are Made of This)", "The Beautiful People" and "The Dope Show" – received a total of five MTV Video Music Award nominations, with the latter winning the Award for Best Cinematography at the 1999 ceremony. The clip for "The Dope Show" also won two awards at the 1998 Billboard Music Video Awards. "The Beautiful People" appeared at number fifty-four on MTV's list of the '100 Greatest Music Videos Ever Made'. as well as at number one-hundred on MuchMusic's 100 Greatest Videos Ever. Their 2003 video for "(s)AINT" was referred to by NME as "one of the most explicit music videos ever made", and was included in lists of the 'Most Controversial Music Videos' by both Time and SF Weekly. The band have received several Kerrang! Awards throughout their career, and were inducted into the Kerrang! Hall of Fame in 2000. Manson also received their Icon Award in 2005, as well as their Lifetime Achievement Award ten years later. The publication has ranked Holy Wood (In the Shadow of the Valley of Death) as the eleventh greatest rock album of the 2000s, and in 2015 they listed Manson as the twenty-eighth greatest rockstar in the world. VH1 included Marilyn Manson at seventy-eight on their list of the '100 Greatest Artists of Hard Rock', and also included "The Beautiful People" at number eighty-six on their list of the 100 Greatest Hard Rock Songs. Similarly, Gigwise included Manson at number thirty-six in their list of the '60 Greatest Solo Artists of All Time'. In 2016, Manson was presented with an Icon Award at the Alternative Press Music Awards. The band has also received four Grammy Award nominations, including two for Best Metal Performance, along with nominations for Best Hard Rock Performance and Best Hard Rock/Metal Performance. Marilyn Manson have sold over 50 million records worldwide. Several commentators have referred to the band's lead singer as being one of the most iconic and controversial figures in heavy metal music, with some going so far as to call him a "pop culture icon". Paste magazine said there were "few artists in the 90s as shocking as Marilyn Manson, the most famous of the shock-rockers." Rolling Stone editor Lorraine Ali credited Antichrist Superstar with marking the end of the reign of grunge within popular music, writing that Marilyn Manson "[offered] total escapism as a true alternative", elaborating that the album was "a volatile reaction to five years of earnest, post-Nirvana rock." In 2003, Jon Wiederhorn of MTV called Manson "the only major performer today who can justifiably call himself an artist." Graham Hartmann of Loudwire said that the band's best songs document "a career that is unlike any other that came before", highlighting their mix of a "rock 'n' roll mentality with profound lyrics narrating the progression of society in real time, Manson has developed a polarizing identity as both a beloved hero and a reviled villain." Hannah Ewers of The Guardian wrote in 2016 that the band's music has "never been more relevant [than] at this time of cultural and political turbulence. Whether [his lyrics are addressing] America's gun crime problem, sexual abuse, religious hypocrisy or consumerism, Manson remains a relevant cultural figure rather than a 90s one, because he continues to address the times without lapsing into a parody", and opined: "As long as young people are angry (which they are), he will have listeners." The band has been noted as influencing numerous groups within metal-associated genres, such as American Head Charge, Babymetal, Black Veil Brides, Combichrist, Kittie, Korn, Motionless in White, Murderdolls, Mushroomhead, New Years Day, September Mourning, Slipknot, and Vanna. Outside of heavy metal, both the band and its lead singer have inspired a diverse group of acts, including the Astroid Boys, Avril Lavigne, Charli XCX, Creeper, Die Antwoord, Eminem, Grimes, Halsey, Lady Gaga, Lana Del Rey, Lil Uzi Vert, Lisa Marie Presley, Muse, My Chemical Romance, Mykki Blanco, Natalia Kills, Porcelain Black, Salem, Skrillex, Skylar Grey and Years & Years. Garbage vocalist Shirley Manson has called Manson an "amazing figure and provocateur and agitator" and said that he was "always challenging you to think about the church, to think about sexuality and to think about society in different ways. We just don't have singers like that anymore." Billy Corgan of The Smashing Pumpkins has commended Manson's manipulation of the culture of celebrity, saying: "He's very savvy, in that he lets people think things about him or plays into things to see what will happen, almost like a performance artist. He's a visionary in a way, because he identified a culture that was coming and now that culture is everywhere." Controversies In December 1996, Secretary of Education William Bennett, along with U.S. Senator Joe Lieberman and former Pennsylvania Secretary of State C. DeLores Tucker, held a press conference wherein they questioned MCA – the owner of Interscope – president Edgar Bronfman Jr.'s ability to head the label competently whilst profiting from "profanity-laced" albums by artists such as Tupac Shakur, Snoop Doggy Dogg and Marilyn Manson. The following November, Representative Sam Brownback chaired a hearing of the Committee on Government Affairs. At this subcommittee, Lieberman once again criticized the band's music, calling it "vile, hateful, nihilistic and damaging", and repeated his request that Seagram – then-owner of MCA – "start ... disassociating itself from Marilyn Manson." The subcommittee also heard from Raymond Kuntz, of Burlington, North Dakota, who blamed his son Richard's suicide on Antichrist Superstar—specifically the song "The Reflecting God". The band's live performances have also come under fire—the Dead to the World Tour, in particular, was followed by protesters at nearly every North American venue it visited. Several state legislatures, including the Utah State Legislature, South Carolina Legislature and the Virginia General Assembly, enacted legislation specifically targeting the group, which banned them from performing in state-operated venues. These laws would later be repealed, following separate lawsuits from fans, the American Civil Liberties Union, and Ozzy Osbourne, who sued the New Jersey Sports and Exposition Authority after they forced the cancellation of the New Jersey date of the 1997 Ozzfest at Giants Stadium. On June 30, 2003, the mutilated body of fourteen-year old schoolgirl Jodi Jones was discovered in woodland near her home in Easthouses, Scotland. The injuries sustained by Jones closely resembled those of actress Elizabeth Short, who was murdered in 1947 and was popularly referred to by media as the Black Dahlia. Jones's boyfriend, then-fifteen year old Luke Mitchell, was arrested on suspicion of her murder ten months later. During a search of his home, detectives confiscated a copy of The Golden Age of Grotesque containing the short film Doppelherz. It was purchased two days after Jones's death. A ten-minute excerpt from the film, as well as several paintings by Manson depicting the Black Dahlia's mutilated body, were presented as evidence during the trial. Mitchell was found guilty of murder and sentenced to serve a minimum of twenty years in prison. The band's scheduled appearance at the Park Live Festival in Moscow on June 27, 2014 was canceled moments before they were due to arrive on stage, after authorities received numerous bomb threats, while hundreds of activists affiliated with the Russian Orthodox Church protested outside the venue. The incident culminated in the assault of several members of the band and crew near their hotel. Two days later, a performance in Novosibirsk was also canceled when authorities refused to grant permission for the show to go ahead, accusing Manson of insulting the beliefs of the Orthodox church and of "promoting sadomasochism". Later that year, Manson garnered significant media attention when a video depicting the simulated rape of Lana Del Rey was posted onto YouTube by production company Sturmgruppe. The video, titled "Sturmgruppe 2013 Reel", showed simulated footage of film director Eli Roth attacking Del Rey, which was interspersed by unrelated images from two of the band's previous music videos—"No Reflection" and "Slo-Mo-Tion". Manson's representatives released a statement to Billboard denying any involvement in the production of the rape scenes. In October 2017, Twiggy Ramirez was accused of sexual assault by ex-girlfriend Jessicka Addams during their relationship in the mid-90s. Soon after, Manson announced that he had "decided to part ways" with his longterm bassist. Several days later, Ramirez released a statement which said: "I have only recently been made aware of these allegations from over 20 years ago. I do not condone non-consensual sex of any kind. I will be taking some time to spend with my family and focus on maintaining my several years of sobriety. If I have caused anyone pain, I apologize and truly regret it." School shootings Columbine massacre On April 20, 1999, Columbine High School students Eric Harris and Dylan Klebold killed twelve students and a teacher, and wounded twenty-one others before committing suicide. In the days following the massacre, media reports surfaced alleging that they were influenced by violence in entertainment, specifically movies, video games and music. The pair were widely reported as being fans of German bands KMFDM and Rammstein, but the majority of blame was directed at Marilyn Manson. Five days after the incident, longtime music industry critics Republican former Secretary of Education William Bennett and Democratic U.S. Senator Joseph Lieberman cited the band as a contributing factor to the massacre during an appearance on Meet the Press. Soon after, sensationalist headlines such as "Killers Worshipped Rock Freak Manson" and "Devil-Worshipping Maniac Told Kids To Kill" began appearing in media coverage of the tragedy (such as Fox News). The Mayor of Denver, Wellington Webb, successfully petitioned promoters to cancel KBPI-FM's annual 'Birthday Bash', at which the band was scheduled to appear. Coloradoan politicians such as Governor Bill Owens and Republican Representative Tom Tancredo accused Manson of promoting "hate, violence, death, suicide, drug use and the attitudes and actions of the Columbine High School killers." Later reports stated that neither Harris nor Klebold was a fan of Marilyn Manson. The band canceled the remaining four dates of the Rock Is Dead Tour out of respect for the victims, while maintaining that music, movies, books or video games were not to blame. Eleven days after the massacre, Manson wrote an op-ed piece for Rolling Stone, titled "Columbine: Whose Fault Is It?", where he rebuked the ensuing hysteria and "witch hunt", and castigated America's gun culture, the political influence of the National Rifle Association, and the media's culpability in similarly violent events in the future – through their irresponsible coverage – in facilitating the placement of blame on a scapegoat, instead of informing the populace of genuine societal issues. Other shootings The controversy connecting the band and school shootings continued on October 10, 2007, when 14-year-old SuccessTech Academy student Asa Coon shot four people before committing suicide. After being punched in the face by another student while exiting a bathroom, he shot his attacker – Michael Peek – in the abdomen. Armed with two revolvers, he then proceeded down a hallway, where he wounded another student and two teachers by firing into two occupied classrooms, before entering a nearby bathroom and committing suicide. Coon was wearing a black Marilyn Manson T-shirt during the incident. On May 18, 2009, 15-year-old Justin Doucet, a student at Larose Middle School in Lafourche Parish, Louisiana, entered the school armed with a .25-caliber Automatic Colt Pistol. When seventh-grade teacher Jessica Plaisance refused to comply with Doucet's demand to say "Hail Marilyn Manson", he fired two shots, narrowly missing her head, before turning the gun on himself. He died from his injuries a week later. Band membersCurrent members Marilyn Manson – lead vocals, guitars, keyboards, programming, percussion, tambourine, saxophone, pan flute (1989–present) Paul Wiley – guitars, programming, backing vocals (2018–present; touring 2014–2018) Juan Alderete – bass, backing vocals (2018–present; touring 2017–2018) Brandon Pertzborn – drums (2019–present)Former members Zsa Zsa Speck – keyboards (1990) Olivia Newton Bundy – bass (1989–1990) Gidget Gein – bass (1990–1993; died 2008) Sara Lee Lucas – drums, programming (1991–1995) Daisy Berkowitz – guitars, programming, percussion, harmonica (1989–1996; died 2017) Zim Zum – guitars, keyboards (1996–1998) John 5 – guitars, keyboards (1998–2004) Madonna Wayne Gacy – keyboards, synthesizers, programming, samples, percussion, brass instruments (1990–2007) Tim Skold – guitars, bass, keyboards, backing vocals (2002–2008) Ginger Fish – drums, programming (1995–2011) Chris Vrenna – keyboards, synthesizers, programming, samples (2007–2011); drums (2011; touring 2004–2005) Fred Sablan – bass, guitars (2010–2014) Twiggy Ramirez – bass, guitars, keyboards, backing vocals (1993–2002, 2008–2014; touring 2014–2017) Tyler Bates – guitars, keyboards, backing vocals (2014–2015, 2015–2018) Gil Sharone – drums (2014–2019) Former touring members Mark Chaussee – guitars (2004–2005) Rob Holliday – guitars (2008); bass, backing vocals (2007–2008) Wes Borland – guitars (2008–2009) Andy Gerold – bass (2009) Jason Sutter – drums (2012–2013) Spencer Rollins – keyboards, guitars (2013) Daniel Fox – keyboards, percussion (2015–2017) Discography Portrait of an American Family (1994) Antichrist Superstar (1996) Mechanical Animals (1998) Holy Wood (In the Shadow of the Valley of Death) (2000) The Golden Age of Grotesque (2003) Eat Me, Drink Me (2007) The High End of Low (2009) Born Villain (2012) The Pale Emperor (2015) Heaven Upside Down (2017) We Are Chaos (2020) Tours Independent Touring (The Spooky Kids) (1990–93) Portrait of an American Family (1994–95) Smells Like Children Tour (1995–1996) Dead to the World Tour (1996–97) Mechanical Animals Tour (1998–99) Beautiful Monsters Tour (1999) Rock Is Dead Tour (1999) Guns, God and Government Tour (2000–01) Grotesk Burlesk Tour (2003–04) Against All Gods Tour (2004–05) Rape of the World Tour (2007–08) The High End of Low Tour (2009) Hey Cruel World... Tour/Twins of Evil Tour/Masters of Madness Tour (2012–13) The Hell Not Hallelujah Tour/The End Times Tour (2015) Heaven Upside Down Tour/Twins of Evil: The Second Coming Tour/Twins of Evil: Hell Never Dies Tour (2017–19) Awards and nominationsGrammy Awards''' ! |- !scope="row"|1999 |"The Dope Show" |Best Hard Rock Performance | |rowspan="4" style="text-align:center;"| |- !scope="row"|2001 |"Astonishing Panorama of the Endtimes" |rowspan="2"|Best Metal Performance | |- !scope="row"|2004 |"mOBSCENE" | |- !scope="row"|2013 |"No Reflection" |Best Hard Rock/Metal Performance | |} References Bibliography External links The Official Marilyn Manson Encyclopedia 1989 establishments in Florida 2000s controversies in the United States American alternative metal musical groups American industrial metal musical groups American industrial rock musical groups Cooking Vinyl artists Hard rock musical groups from Florida Heavy metal musical groups from Florida Interscope Records artists Kerrang! Awards winners Musical groups established in 1989 Musical groups from Fort Lauderdale, Florida Musical quintets Nothing Records artists Obscenity controversies in music Religious controversies in music Rock music groups from Florida Musical backing groups

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https://en.wikipedia.org/wiki/Mortimer%20J.%20Adler

Mortimer J. Adler

Mortimer Jerome Adler (December 28, 1902 – June 28, 2001) was an American philosopher, educator, encyclopedist, and popular author. As a philosopher he worked within the Aristotelian and Thomistic traditions. He lived for long stretches in New York City, Chicago, San Francisco, and San Mateo, California. He taught at Columbia University and the University of Chicago, served as chairman of the Encyclopædia Britannica Board of Editors, and founded his own Institute for Philosophical Research. Biography Intellectual development and philosophic evolution While doing newspaper work and taking night classes during his adolescence, Adler had encountered works of men he would come to call heroes: Plato, Aristotle, Thomas Aquinas, John Locke, John Stuart Mill and others, which "were assailed as irrelevant by student activists in the 1960s and subjected to 'politically correct' attack in later decades". His thought evolved so as to refute "philosophical mistakes" as reflected in his 1985 book, Ten Philosophical Mistakes: Basic Errors in Modern Thought. In Adler's view, these errors were introduced by Descartes on the continent and by John Locke and David Hume in Britain, compounded and perpetuated by Kant and the idealists and existentialists on the one side, and by John Stuart Mill, Jeremy Bentham, and Bertrand Russell and the English analytic tradition on the other. Having corrected, at least to his own satisfaction, these mistakes, he gave answers to philosophic problems in the categories of thought whence they arose, finding the necessary insights and distinctions to do so by drawing from the Aristotelian tradition, as in his other written works. New York City Adler was born in Manhattan, New York City, on December 28, 1902, to Jewish immigrants from Germany: Clarissa (Manheim), a schoolteacher, and Ignatz Adler, a jewelry salesman. He dropped out of school at age 14 to become a copy boy for the New York Sun, with the ultimate aspiration to become a journalist. Adler soon returned to school to take writing classes at night where he discovered the western philosophical tradition. After his early schooling and work, he went on to study at Columbia University and contributed to the student literary magazine, The Morningside (a poem "Choice" in 1922 when Charles A. Wagner was editor-in-chief and Whittaker Chambers an associate editor). Though he refused to take the required swimming test for a bachelor's degree (a matter that was rectified when Columbia gave him an honorary degree in 1983), he stayed at the university and eventually received an instructorship and finally a doctorate in psychology. While at Columbia University, Adler wrote his first book: Dialectic, published in 1927. Adler worked with Scott Buchanan at the People's Institute and then for many years on their respective Great Books efforts. (Buchanan was the founder of the Great Books program at St. John's College). Chicago In 1930 Robert Hutchins, the newly appointed president of the University of Chicago, whom Adler had befriended some years earlier, arranged for Chicago's law school to hire him as a professor of the philosophy of law. The philosophers at Chicago (who included James H. Tufts, E.A. Burtt, and George H. Mead) had "entertained grave doubts as to Dr. Adler's competence in the field [of philosophy]" and resisted Adler's appointment to the University's Department of Philosophy. Adler was the first "non-lawyer" to join the law school faculty. Adler also taught philosophy to business executives at the Aspen Institute. "Great Books" and beyond Adler and Hutchins went on to found the Great Books of the Western World program and the Great Books Foundation. He founded and served as director of the Institute for Philosophical Research in 1952. He also served on the Board of Editors of Encyclopædia Britannica, and succeeded Hutchins as its chairman from 1974. As the director of editorial planning for the fifteenth edition of Britannica from 1965, he was instrumental in the major reorganization of knowledge embodied in that edition. He introduced the Paideia Proposal which resulted in his founding the Paideia Program, a grade-school curriculum centered around guided reading and discussion of difficult works (as judged for each grade). With Max Weismann, he founded the Center for the Study of The Great Ideas in 1990 in Chicago. Popular appeal Adler long strove to bring philosophy to the masses, and some of his works (such as How to Read a Book) became popular bestsellers. He was also an advocate of economic democracy and wrote an influential preface to Louis O. Kelso's The Capitalist Manifesto. Adler was often aided in his thinking and writing by Arthur Rubin, an old friend from his Columbia undergraduate days. In his own words: Dwight Macdonald once criticized Adler's popular style by saying "Mr. Adler once wrote a book called How to Read a Book. He should now read a book called How to Write a Book." Religion and theology Adler was born into a nonobservant Jewish family. In his early twenties, he discovered St. Thomas Aquinas, and in particular the Summa Theologica. Many years later, he wrote that its "intellectual austerity, integrity, precision and brilliance ... put the study of theology highest among all of my philosophical interests". An enthusiastic Thomist, he was a frequent contributor to Catholic philosophical and educational journals, as well as a frequent speaker at Catholic institutions, so much so that some assumed he was a convert to Catholicism. But that was reserved for later. In 1940, James T. Farrell called Adler "the leading American fellow-traveller of the Roman Catholic Church". What was true for Adler, Farrell said, was what was "postulated in the dogma of the Roman Catholic Church", and he "sang the same tune" as avowed Catholic philosophers like Étienne Gilson, Jacques Maritain and Martin D'Arcy. He also greatly admired Henri Bergson, the French Jewish philosopher and Nobel laureate, whose books the Catholic church had indexed as prohibited, and who refused to convert during the collaborationist Vichy regime, and despite the Statute on Jews he instead restated his previous views, and was thus stripped of all his previous posts and honors. Farrell attributed Adler's delay in joining the Church to his being among those Christians who "wanted their cake and ... wanted to eat it too", and compared him to the Emperor Constantine, who waited until he was on his deathbed to formally become a Catholic. Adler took a long time to make up his mind about theological issues. When he wrote How to Think About God: A Guide for the Twentieth-Century Pagan in 1980, he claimed to consider himself the pagan of the book's subtitle. In volume 51 of the Mars Hill Audio Journal (2001), Ken Myers includes his 1980 interview with Adler, conducted after How to Think About God was published. Myers reminisces, "During that interview, I asked him why he had never embraced the Christian faith himself. He explained that while he had been profoundly influenced by a number of Christian thinkers during his life, ... there were moral – not intellectual – obstacles to his conversion. He didn't explain any further." Myers notes that Adler finally "surrendered to the Hound of Heaven" and "made a confession of faith and was baptized" as an Episcopalian in 1984, only a few years after that interview. Offering insight into Adler's conversion, Myers quotes him from a subsequent 1990 article in Christianity magazine: "My chief reason for choosing Christianity was because the mysteries were incomprehensible. What's the point of revelation if we could figure it out ourselves? If it were wholly comprehensible, then it would just be another philosophy." According to his friend Deal Hudson, Adler "had been attracted to Catholicism for many years" and "wanted to be a Roman Catholic, but issues like abortion and the resistance of his family and friends" kept him away. Many thought he was baptized as an Episcopalian rather than a Catholic solely because of his "wonderful – and ardently Episcopal – wife" Caroline. Hudson suggests it is no coincidence that it was only after her death in 1998 that he took the final step. In December 1999, in San Mateo, where he had moved to spend his last years, Adler was formally received into the Catholic Church by a long-time friend and admirer, Bishop Pierre DuMaine. "Finally," wrote another friend, Ralph McInerny, "he became the Roman Catholic he had been training to be all his life". Despite not being a Catholic for most of his life, on account of his lifelong participation in the Neo-Thomist movement and his almost equally long membership of the American Catholic Philosophical Association, this latter, according to McInerny is willing to consider him "a Catholic philosopher". Philosophy Adler referred to Aristotle's Nicomachean Ethics as the "ethics of common sense" and also as "the only moral philosophy that is sound, practical, and undogmatic". Thus, it is the only ethical doctrine that answers all the questions that moral philosophy should and can attempt to answer, neither more nor less, and that has answers that are true by the standard of truth that is appropriate and applicable to normative judgments. In contrast, he believed that other theories or doctrines try to answer more questions than they can or fewer than they should, and their answers are mixtures of truth and error, particularly the moral philosophy of Immanuel Kant. Adler was a self-proclaimed "moderate dualist", and viewed the positions of psychophysical dualism and materialistic monism to be opposite sides of two extremes. Regarding dualism, he dismissed the extreme form of dualism that stemmed from such philosophers as Plato (body and soul) and Descartes (mind and matter), as well as the theory of extreme monism and the mind–brain identity theory. After eliminating the extremes, Adler subscribed to a more moderate form of dualism. He believed that the brain is only a necessary, but not a sufficient, condition for conceptual thought; that an "immaterial intellect" is also requisite as a condition; and that the difference between human and animal behavior is a radical difference in kind. Adler defended this position against many challenges to dualistic theories. Freedom and free will The meanings of "freedom" and "free will" have been and are under debate, and the debate is confused because there is no generally accepted definition of either term. Adler's "Institute for Philosophical Research" spent ten years studying the "idea of freedom" as the word was used by hundreds of authors who have discussed and disputed freedom. The study was published in 1958 as Volume One of The Idea of Freedom, sub-titled A Dialectical Examination of the Idea of Freedom with subsequent comments in Adler's Philosophical Dictionary. Adler's study concluded that a delineation of three kinds of freedom – circumstantial, natural, and acquired – is necessary for clarity on the subject. "Circumstantial freedom" denotes "freedom from coercion or restraint." "Natural freedom" denotes "freedom of a free will" or "free choice." It is the freedom to determine one's own decisions or plans. This freedom exists in everyone inherently, regardless of circumstances or state of mind. "Acquired freedom" is the freedom "to will as we ought to will" and, thus, "to live as [one] ought to live." This freedom is not inherent: it must be acquired by a change whereby a person gains qualities as "good, wise, virtuous, etc." Religion As Adler's interest in religion and theology increased, he made references to the Bible and the need to test articles of faith for compatibility with the conclusions of the science of nature and of philosphers. In his 1981 book How to Think About God, Adler attempts to demonstrate God as the exnihilator (the creator of something from nothing). Adler stressed that even with this conclusion, God's existence cannot be proven or demonstrated, but only established as true beyond a reasonable doubt. However, in a recent re-review of the argument, John Cramer concluded that recent developments in cosmology appear to converge with and support Adler's argument, and that in light of such theories as the multiverse, the argument is no worse for wear and may, indeed, now be judged somewhat more probable than it was originally. Adler believed that, if theology and religion are living things, there is nothing intrinsically wrong about efforts to modernize them. They must be open to change and growth like everything else. Further, there is no reason to be surprised when discussions such as those about the "death of God" – a concept drawn from Friedrich Nietzsche – stir popular excitement as they did in the recent past and could do so again today. According to Adler, of all the great ideas, the idea of God has always been and continues to be the one that evokes the greatest concern among the widest group of men and women. However, he was opposed to the idea of converting atheism into a new form of religion or theology. Personal life Mortimer Adler was married twice and had four children. He and Helen Boynton, with whom in 1938 and 1940, respectively, he adopted two children, Mark and Michael, were married in 1927 and later divorced in 1960. In 1963, Adler married Caroline Pring, his junior by thirty-four years; they had two children, Douglas and Philip. Awards 1985, Golden Plate Award of the American Academy of Achievement 1993, Aspen Hall of Fame Published works Dialectic (1927) The Nature of Judicial Proof: An Inquiry into the Logical, Legal, and Empirical Aspects of the Law of Evidence (1931, with Jerome Michael) Diagrammatics (1932, with Maude Phelps Hutchins) Crime, Law and Social Science (1933, with Jerome Michael) Art and Prudence: A Study in Practical Philosophy (1937) What Man Has Made of Man: A Study of the Consequences of Platonism and Positivism in Psychology (1937) St. Thomas and the Gentiles (1938) The Philosophy and Science of Man: A Collection of Texts as a Foundation for Ethics and Politics (1940) How to Read a Book: The Art of Getting a Liberal Education (1940), 1966 edition subtitled A Guide to Reading the Great Books, 1972 revised edition with Charles Van Doren, The Classic Guide to Intelligent Reading: A Dialectic of Morals: Towards the Foundations of Political Philosophy (1941) How to Think About War and Peace (1944) The Revolution in Education (1944, with Milton Mayer) . The Capitalist Manifesto (1958, with Louis O. Kelso) The New Capitalists: A Proposal to Free Economic Growth from the Slavery of Savings (1961, with Louis O. Kelso) The Idea of Freedom: A Dialectical Examination of the Controversies about Freedom (1961) Great Ideas from the Great Books (1961) The Conditions of Philosophy: Its Checkered Past, Its Present Disorder, and Its Future Promise (1965) The Difference of Man and the Difference It Makes (1967) The Time of Our Lives: The Ethics of Common Sense (1970) The Common Sense of Politics (1971) The American Testament (1975, with William Gorman) Some Questions About Language: A Theory of Human Discourse and Its Objects (1976) Philosopher at Large: An Intellectual Autobiography (1977) Reforming Education: The Schooling of a People and Their Education Beyond Schooling (1977, edited by Geraldine Van Doren) Aristotle for Everybody: Difficult Thought Made Easy (1978) How to Think About God: A Guide for the 20th-Century Pagan (1980) Six Great Ideas: Truth–Goodness–Beauty–Liberty–Equality–Justice (1981) The Angels and Us (1982) The Paideia Proposal: An Educational Manifesto (1982) How to Speak / How to Listen (1983) Paideia Problems and Possibilities: A Consideration of Questions Raised by The Paideia Proposal (1983) A Vision of the Future: Twelve Ideas for a Better Life and a Better Society (1984) The Paideia Program: An Educational Syllabus (1984, with Members of the Paideia Group) Ten Philosophical Mistakes: Basic Errors In Modern Thought - How they came about, their consequences, and how to avoid them. (1985) A Guidebook to Learning: For a Lifelong Pursuit of Wisdom (1986) We Hold These Truths: Understanding the Ideas and Ideals of the Constitution (1987). Reforming Education: The Opening of the American Mind (1988, edited by Geraldine Van Doren) Intellect: Mind Over Matter (1990) Truth in Religion: The Plurality of Religions and the Unity of Truth (1990) Haves Without Have-Nots: Essays for the 21st Century on Democracy and Socialism (1991) Desires, Right & Wrong: The Ethics of Enough (1991) A Second Look in the Rearview Mirror: Further Autobiographical Reflections of a Philosopher At Large (1992) The Great Ideas: A Lexicon of Western Thought (1992) Natural Theology, Chance, and God (The Great Ideas Today, 1992) The Four Dimensions of Philosophy: Metaphysical–Moral–Objective–Categorical (1993) Art, the Arts, and the Great Ideas (1994) . How to Think About The Great Ideas (2000) How to Prove There is a God (2011) Anthologies, collections and surveys edited by Adler Scholasticism and Politics (1940) Great Books of the Western World (1952, 52 volumes), 2nd edition 1990, 60 volumes A Syntopicon: An Index to The Great Ideas (1952, 2 volumes), 2nd edition 1990 The Great Ideas Today (1961–77, 17 volumes), with Robert Hutchins, 1978–99, 21 volumes The Negro in American History (1969, 3 volumes), with Charles Van Doren Gateway to the Great Books (1963, 10 volumes), with Robert Hutchins The Annals of America (1968, 21 volumes) Propædia: Outline of Knowledge and Guide to The New Encyclopædia Britannica 15th Edition (1974, 30 volumes) Great Treasury of Western Thought (1977, with Charles Van Doren) See also List of American philosophers Educational perennialism References Further reading External links Center for the Study of The Great Ideas Adler papers at University of Texas at Austin Adler papers at Syracuse University Guide to the Mortimer J. Adler Papers 1914-1995 at the University of Chicago Special Collections Research Center 1902 births 2001 deaths 20th-century American educators 20th-century American essayists 20th-century American male writers 20th-century American philosophers 20th-century American theologians Action theorists American anti-capitalists American autobiographers American cultural critics American educational theorists American educators American encyclopedists American ethicists American former Protestants American male essayists American male non-fiction writers American people of German-Jewish descent American philosophy academics American political philosophers Anglican philosophers Anthologists Aristotelian philosophers Catholic philosophers Catholics from California Catholics from Illinois Catholics from New York (state) Christian ethicists Columbia College (New York) alumni Columbia Graduate School of Arts and Sciences alumni Columbia University faculty Contemporary philosophers Converts to Anglicanism from Judaism Converts to Roman Catholicism from Anglicanism Encyclopædia Britannica Epistemologists Great Books Historians of philosophy Jewish American academics Jewish encyclopedists Jewish philosophers Literacy and society theorists Metaphysicians Metaphysics writers Moral philosophers National Humanities Medal recipients Ontologists Philosophers from Illinois Philosophers from New York (state) Philosophers of art Philosophers of culture Philosophers of economics Philosophers of education Philosophers of ethics and morality Philosophers of history Philosophers of law Philosophers of literature Philosophers of love Philosophers of mind Philosophers of psychology Philosophers of religion Philosophers of sexuality Philosophers of social science Philosophers of war Philosophy writers Political philosophers Rationalists Social critics Social philosophers Thomists University of Chicago Law School faculty Writers about activism and social change Writers about religion and science Writers from Manhattan

19452

https://en.wikipedia.org/wiki/May%2011

May 11

Events Pre-1600 330 – Constantinople is consecrated. 868 – A copy of the Diamond Sutra is printed in China, making it the oldest known dated printed book. 912 – Alexander becomes Emperor of the Byzantine Empire. 1502 – Christopher Columbus leaves on his fourth and last voyage (till Nov.7,1504). 1601–1900 1745 – War of the Austrian Succession: French forces defeat an Anglo-Dutch–Hanoverian army. 1792 – Robert Gray commands the first expedition to sail into the Columbia River. 1812 – Prime Minister Spencer Perceval is assassinated by John Bellingham in the lobby of the British House of Commons. 1813 – William Lawson, Gregory Blaxland and William Wentworth discover a route across the Blue Mountains, opening up inland Australia to settlement. 1833 – The Lady of the Lake strikes an iceberg off Newfoundland and sinks with the loss of up to 265 passengers and crew. 1846 – President James K. Polk asked for a Declaration of War against Mexico, starting the Mexican–American War. 1857 – Indian Rebellion of 1857: Indian rebels seize Delhi from the British. 1858 – Minnesota is admitted as the 32nd state of the United States. 1880 – Seven people are killed in the Mussel Slough Tragedy, a gun battle in California. 1889 – An attack upon a U.S. Army paymaster and escort results in the theft of over $28,000 and the award of two Medals of Honor. 1894 – Four thousand Pullman Palace Car Company workers go on a wildcat strike. 1901–present 1910 – An act of the U.S. Congress establishes Glacier National Park in Montana. 1943 – World War II: American troops invade Attu Island in the Aleutian Islands in an attempt to expel occupying Japanese forces. 1945 – World War II: Off the coast of Okinawa, the aircraft carrier is hit by two kamikazes. 1960 – Adolf Eichmann is captured by the Mossad in Argentina. 1963 – Racist bombings in Birmingham, Alabama, disrupt nonviolence in the Birmingham campaign and precipitate a crisis involving federal troops. 1970 – The 1970 Lubbock tornado kills 26 and causes $250 million in damage. 1973 – Citing government misconduct, Daniel Ellsberg's charges for his involvement in releasing the Pentagon Papers to The New York Times are dismissed. 1985 – Fifty-six spectators die and more than 200 are injured in the Bradford City stadium fire. 1987 – Klaus Barbie goes on trial in Lyon for war crimes committed during World War II. 1996 – After the aircraft's departure from Miami, a fire started by improperly handled chemical oxygen generators in the cargo hold of Atlanta-bound ValuJet Airlines Flight 592 causes the Douglas DC-9 to crash in the Florida Everglades, killing all 110 on board. 1997 – Deep Blue, a chess-playing supercomputer, defeats Garry Kasparov in the last game of the rematch, becoming the first computer to beat a world-champion chess player in a classic match format. 1998 – India conducts three underground atomic tests in Pokhran. 2000 – Second Chechen War: Chechen separatists ambush Russian paramilitary forces in the Republic of Ingushetia. 2010 – David Cameron takes office as Prime Minister of the United Kingdom as the Conservatives and Liberal Democrats form the country's first coalition government since the Second World War. 2011 – An earthquake of magnitude 5.1 hits Lorca, Spain. 2013 – Fifty-two people are killed in a bombing in Reyhanlı, Turkey. 2014 – Fifteen people are killed and 46 injured in Kinshasa in a stampede caused by tear gas being thrown into soccer stands by police officers. 2016 – One hundred and ten people are killed in an ISIL bombing in Baghdad. Births Pre-1600 1571 – Niwa Nagashige, Japanese daimyō (d. 1637) 1601–1900 1715 – Johann Gottfried Bernhard Bach, German organist (d. 1739) 1752 – Johann Friedrich Blumenbach, German physician, physiologist, and anthropologist (d. 1840) 1797 – José Mariano Salas, Mexican general and politician (d. 1867) 1811 – Jean-Jacques Challet-Venel, Swiss politician (d. 1893) 1852 – Charles W. Fairbanks, American journalist and politician, 26th United States Vice President (d. 1918) 1854 – Jack Blackham, Australian cricketer (d. 1932) 1869 – Archibald Warden, English tennis player (d. 1943) 1871 – Frank Schlesinger, American astronomer and author (d. 1943) 1875 – Harriet Quimby, American pilot and screenwriter (d. 1912) 1881 – Al Cabrera, Spanish-Cuban baseball player and manager (d. 1964) 1881 – Jan van Gilse, Dutch composer and conductor (d. 1944) 1881 – Theodore von Kármán, Hungarian-American mathematician, physicist, and engineer (d. 1963) 1888 – Irving Berlin, Belarusian-American pianist and composer (d. 1989) 1888 – Willis Augustus Lee, American admiral (d. 1945) 1889 – Paul Nash, British painter (d. 1946) 1890 – Willie Applegarth, English-American sprinter (d. 1958) 1890 – Helge Løvland, Norwegian decathlete (d. 1984) 1894 – Martha Graham, American dancer and choreographer (d. 1991) 1895 – Jacques Brugnon, French tennis player (d. 1978) 1895 – Jiddu Krishnamurti, Indian philosopher and speaker (d. 1986) 1895 – William Grant Still, American composer and conductor (d. 1978) 1896 – Josip Štolcer-Slavenski, Croatian composer and academic (d. 1955) 1897 – Robert E. Gross, American businessman (d. 1961) 1901–present 1901 – Rose Ausländer, Ukrainian-English poet and author (d. 1988) 1901 – Gladys Rockmore Davis, American painter (d. 1967) 1902 – Edna Ernestine Kramer, American mathematician (d. 1984) 1903 – Charlie Gehringer, American baseball player and manager (d. 1993) 1904 – Salvador Dalí, Spanish artist (d. 1989) 1905 – Lise de Baissac, Mauritian-born SOE agent, war hero (d. 2004) 1905 – Catherine Bauer Wurster, American architect and public housing advocate (d. 1964) 1907 – Rip Sewell, American baseball player and coach (d. 1989) 1911 – Mitchell Sharp, Canadian economist and politician, 23rd Canadian Minister of Finance (d. 2004) 1911 – Phil Silvers, American actor and comedian (d. 1985) 1912 – Saadat Hasan Manto, Indian-Pakistani author and screenwriter (d. 1955) 1916 – Camilo José Cela, Spanish author and politician, Nobel Prize laureate (d. 2002) 1918 – Richard Feynman, American physicist and engineer, Nobel Prize laureate (d. 1988) 1921 – Robin Barbour, Scottish minister and author (d. 2014) 1921 – Hildegard Hamm-Brücher, German politician (d. 2016) 1924 – Antony Hewish, English astronomer and academic, Nobel Prize laureate (d. 2021) 1925 – Edward J. King, American football player and politician, 66th Governor of Massachusetts (d. 2006) 1927 – Bernard Fox, British actor (d. 2016) 1927 – Gene Savoy, American explorer, author, and scholar (d. 2007) 1930 – Edsger W. Dijkstra, Dutch computer scientist and academic (d. 2002) 1930 – Stanley Elkin, American novelist, short story writer, and essayist (d. 1995) 1932 – Valentino Garavani, Italian fashion designer 1933 – Louis Farrakhan, American religious leader 1934 – Jim Jeffords, American captain, lawyer, and politician (d. 2014) 1934 – Jack Twyman, American basketball player (d. 2012) 1935 – Francisco Umbral, Spanish journalist and author (d. 2007) 1937 – Ildikó Újlaky-Rejtő, Hungarian Olympic and world champion foil fencer 1938 – Narendra Patel, Baron Patel, Tanzanian-English obstetrician, academic, and politician 1941 – Eric Burdon, English musician 1941 – Ian Redpath, Australian cricketer and coach 1943 – Nancy Greene, Canadian skier and politician 1944 – John Benaud, Australian cricketer 1948 – Jack Cantoni, French rugby player (d. 2013) 1948 – Nirj Deva, Sri Lankan-English politician 1950 – Jeremy Paxman, English journalist and author 1950 – Sadashiv Amrapurkar, Indian actor (d. 2014) 1951 – Ed Stelmach, Canadian farmer and politician, 13th Premier of Alberta 1954 – John Gregory, English footballer and manager 1955 – John DeStefano, Jr., American politician, 49th Mayor of New Haven 1957 – Mike Nesbitt, Northern Irish journalist and politician 1962 – Steve Bono, American football player 1964 – Bobby Witt, American baseball player 1964 – Floyd Youmans, American baseball player, coach, and manager 1967 – Alberto García Aspe, Mexican footballer and manager 1969 – Mitch Healey, Australian rugby league player and coach 1969 – Simon Vroemen, Dutch runner 1970 – Harold Ford, Jr., American lawyer and politician 1970 – Jason Queally, English cyclist 1972 – Tomáš Dvořák, Czech decathlete and coach 1973 – Tsuyoshi Ogata, Japanese runner 1974 – Darren Ward, English-Welsh footballer and coach 1974 – Tony Warner, English born Trinidadian international footballer and coach 1975 – Francisco Cordero, Dominican-American baseball player 1976 – Kardinal Offishall, American rapper and record producer/executive 1977 – Pablo Gabriel García, Uruguayan footballer 1977 – Victor Matfield, South African rugby player, coach, and sportscaster 1977 – Bobby Roode, Canadian professional wrestler 1978 – Laetitia Casta, French model and actress 1981 – JP Karliak, American actor, voice actor and comedian 1982 – Cory Monteith, Canadian actor and singer (d. 2013) 1983 – Matt Leinart, American football player 1983 – Steven Sotloff, American-Israeli journalist (d. 2014) 1983 – Holly Valance, Australian actress, singer and model 1984 – Andrés Iniesta, Spanish footballer 1986 – Abou Diaby, French footballer 1986 – Miguel Veloso, Portuguese footballer 1987 – Lim Seul-ong, South Korean singer and actor 1987 – Monica Roșu, Romanian gymnast 1988 – Jeremy Maclin, American football player 1988 – Brad Marchand, Canadian ice hockey player 1989 – Alyssa Brown, Canadian artistic gymnast 1989 – Giovani dos Santos, Mexican international footballer 1989 – Cam Newton, American football player 1992 – Thibaut Courtois, Belgian footballer 1992 – Pablo Sarabia, Spanish footballer 1993 – Maurice Harkless, American-Puerto Rican basketball player 1994 – Hagos Gebrhiwet, Ethiopian runner 1995 – Gelson Martins, Portuguese footballer 1999 – Sabrina Carpenter, American singer and actress Deaths Pre-1600 912 – Leo VI the Wise, Byzantine Emperor, the second ruler of the Macedonian dynasty (b.866). 1601–1900 1610 – Matteo Ricci, Italian priest and mathematician (b. 1552) 1778 – William Pitt, 1st Earl of Chatham, English soldier and politician, Prime Minister of the United Kingdom (b. 1708) 1779 – John Hart, American lawyer and politician (b. 1711) 1812 – Spencer Perceval, English lawyer and politician, Prime Minister of the United Kingdom (b. 1762) 1848 – Tom Cribb, English boxer (b. 1781) 1849 – Juliette Récamier, French businesswoman (b. 1777) 1882 – Frederick Innes, Scottish-Australian politician, 9th Premier of Tasmania (b. 1816) 1889 – John Cadbury, English businessman and philanthropist, founded the Cadbury Company (b. 1801) 1901–present 1908 – Charles Kingston, Australian politician, 20th Premier of South Australia (b. 1850) 1916 – Karl Schwarzschild, German astronomer and physicist (b. 1873) 1918 – George Elmslie, Australian politician, 25th Premier of Victoria (b. 1861) 1920 – James Colosimo, Italian-American mob boss (b. 1878) 1920 – William Dean Howells, American novelist, literary critic, and playwright (b. 1837) 1927 – Juan Gris, Spanish painter and sculptor (b. 1887) 1929 – Jozef Murgaš, Slovak-American priest, architect, botanist, and painter (b. 1864) 1938 – George Lyon, Canadian golfer and cricketer (b. 1858) 1946 – Seán McCaughey Irish Republican, Hunger Striker 1955 – Gilbert Jessop, English cricketer (b. 1874) 1960 – John D. Rockefeller Jr., American businessman and philanthropist (b. 1874) 1963 – Herbert Spencer Gasser, American physiologist and academic, Nobel Prize laureate (b. 1888) 1967 – James E. Brewton, American painter (b. 1930) 1979 – Lester Flatt, American singer-songwriter and guitarist (b. 1914) 1981 – Odd Hassel, Norwegian chemist and academic, Nobel Prize laureate (b. 1897) 1981 – Bob Marley, Jamaican singer-songwriter and guitarist (b. 1945) 1983 – Zenna Henderson, American writer (b. 1917) 1985 – Chester Gould, American cartoonist, created Dick Tracy (b. 1900) 1986 – Fritz Pollard, American football player and coach (b. 1894) 1988 – Kim Philby, British-Soviet double agent (b. 1912) 1994 – Timothy Carey, American actor, director, and producer (b. 1928) 2001 – Douglas Adams, English novelist and screenwriter (b. 1952) 2002 – Renaude Lapointe, Canadian journalist and politician (b. 1912) 2002 – Bill Peet, American animator and screenwriter (b. 1915) 2003 – Noel Redding, English bass player (b. 1945) 2005 – Léo Cadieux, Canadian politician, 17th Canadian Minister of National Defence (b. 1908) 2006 – Floyd Patterson, American boxer and actor (b. 1935) 2007 – Malietoa Tanumafili II, Samoan ruler (b. 1913) 2008 – John Rutsey, Canadian drummer (b. 1953) 2009 – Abel Goumba, Central African physician and politician, Prime Minister of the Central African Republic (b. 1926) 2009 – Claudio Huepe, Chilean economist and politician, Chilean Minister Secretary-General of Government (b. 1939) 2009 – Sardarilal Mathradas Nanda, Indian admiral (b. 1915) 2010 – Doris Eaton Travis, American dancer and vaudevillian (b. 1904) 2011 – Robert Traylor, American basketball player (b. 1977) 2019 – Peggy Lipton, American actress, model, and singer (b. 1946) 2019 – Thomas Silverstein, American murderer (b. 1952) 2020 – Jerry Stiller, American comedian, actor (b. 1927) 2021 – Colt Brennan, American quarterback (b. 1983) 2021 – Norman Lloyd, American actor, producer and director (b. 1914) Holidays and observances Christian feast day: Anthimus of Rome Gangulphus of Burgundy Majolus of Cluny Mamertus, the first of the Ice Saints National Technology Day (India) Statehood Day (Minnesota) Vietnam Human Rights Day References External links BBC: On This Day Historical Events on May 11 Today in Canadian History Days of the year May

19455

https://en.wikipedia.org/wiki/Max%20Weber

Max Weber

Maximilian Karl Emil Weber (; ; 21 April 186414 June 1920) was a German sociologist, historian, jurist, and political economist regarded as among the most important theorists of the development of modern Western society. His ideas profoundly influence social theory and research. Despite being recognized as one of the fathers of sociology along with Auguste Comte, Karl Marx, and Émile Durkheim, Weber saw himself not as a sociologist but as a historian. Unlike Émile Durkheim, Weber did not believe in monocausal explanations, proposing instead that for any outcome there can be multiple causes. Also unlike Durkheim, Weber was a key proponent of methodological anti-positivism, arguing for the study of social action through interpretive (rather than purely empiricist) methods, based on understanding the purpose and meanings that individuals attach to their own actions. Weber's main intellectual concern was in understanding the processes of rationalisation, secularisation, and the ensuing sense of "disenchantment". He formulated a thesis arguing that such processes result from a new way of thinking about the world and are associated with the rise of capitalism and modernity. Weber is best known for his other thesis combining economic sociology and the sociology of religion, emphasising the importance of cultural influences embedded in religion as a means for understanding the genesis of capitalism (in contrast to Marx's historical materialism). Weber would first elaborate his theory in his seminal work, The Protestant Ethic and the Spirit of Capitalism (1905), where he attributed ascetic Protestantism as one of the major "elective affinities" leading to the rise of market-driven capitalism and the rational-legal nation-state in the Western world. Arguing the boosting of capitalism as a basic tenet of Protestantism, Weber suggested that the spirit of capitalism is inherent in Protestant religious values. Protestant Ethic would form the earliest part in Weber's broader investigations into world religions, as he later examined the religions of China and India, as well as ancient Judaism, with particular regard to their differing economic consequences and conditions of social stratification. In another major work, "Politics as a Vocation", Weber defined "the state" as an entity that successfully claims a "monopoly of the legitimate use of physical force within a given territory". He would also be the first to categorise social authority into distinct forms: charismatic, traditional, and rational-legal. Among these categories, Weber's analysis of bureaucracy emphasized that modern state institutions are increasingly based on the latter (rational-legal authority). Weber made a variety of other contributions in economic history, theory, and methodology. His analysis of modernity and rationalisation would significantly influence the critical theory associated with the Frankfurt School. After the First World War, Weber was among the founders of the liberal German Democratic Party. He also ran unsuccessfully for a seat in parliament and served as advisor to the committee that drafted the ill-fated democratic Weimar Constitution of 1919. After contracting Spanish flu, he died of pneumonia in 1920, aged 56. Personal life Early life and background Maximilian Karl Emil Weber was born on 21 April 1864 in Erfurt, Province of Saxony, Prussia, but his family moved to Berlin in 1869. He would be the oldest of eight children to Max Weber Sr. and his wife Helene Fallenstein. Over the course of his life, Weber Sr. held posts as a lawyer, a civil servant, and a parliamentarian for the National Liberal Party in the Prussian Landtag and German Reichstag. Fallenstein partly descended from French Huguenot immigrants and came from a wealthy background. Over time, Weber Jr. would be affected by the marital and personality tensions between his father, "a man who enjoyed earthly pleasures" while overlooking religious and philanthropic causes, and his mother, a devout Calvinist "who sought to lead an ascetic life" and held moral absolutist ideas. Weber Sr.'s involvement in public life immersed his home in both politics and academia, as his salon welcomed scholars and public figures like philosopher Wilhelm Dilthey and jurist Levin Goldschmidt. The young Weber and his brother Alfred, who also became a sociologist and economist, passed their formative years in this intellectual atmosphere. For Christmas in 1877, a thirteen-year-old Max Weber gifted his parents two historical essays, entitled "About the Course of German history, with Special Reference to the Positions of the Emperor and the Pope", and "About the Roman Imperial Period from Constantine to the Migration Period". In class, bored and unimpressed with teachers—who, in turn, resented what they perceived as a disrespectful attitude—Weber secretly read all forty volumes by writer Johann Wolfgang von Goethe, and it has been argued that this was an important influence on his thought and methodology. Before entering university, he would read many other classical works, including those by philosopher Immanuel Kant. Education In 1882, Weber enrolled in the University of Heidelberg as a law student, transferring to the University of Berlin after a year of military service. After his first few years as a student, during which he spent much time "drinking beer and fencing", Weber would increasingly take his mother's side in family arguments and grew estranged from his father. Simultaneously with his studies, he worked as a junior lawyer. In 1886, Weber passed the examination for Referendar, comparable to the bar association examination in the British and U.S. legal systems. Throughout the late 1880s, Weber continued his study of law and history, earning his law doctorate in 1889 by writing a dissertation on legal history titled The history of commercial partnerships in the Middle Ages. This work would be used as part of a longer work, On the History of Trading Companies in the Middle Ages, based on South-European Sources, published in the same year. Two years later, working with August Meitzen, Weber completed his habilitation, Roman Agrarian History and Its Significance for Public and Private Law. Having thus become a privatdozent, Weber joined the University of Berlin's faculty, lecturing and consulting for the government. Marriage In 1893, Weber married his distant cousin Marianne Schnitger, later a feminist activist and author in her own right, who was instrumental in collecting and publishing Weber's journal articles as books after his death, while her biography of him is an important source for understanding Weber's life. They would have no children. The marriage granted long-awaited financial independence to Weber, allowing him to finally leave his parents' household. Career and later life Early work In the years between the completion of his dissertation and habilitation, Weber took an interest in contemporary social policy. In 1888, he joined the Verein für Socialpolitik, a new professional association of German economists affiliated with the historical school, who saw the role of economics primarily as finding solutions to the social problems of the age and who pioneered large scale statistical studies of economic issues. He also involved himself in politics, joining the left-leaning Evangelical Social Congress. In 1890, the Verein established a research program to examine "the Polish question", or ostflucht: the influx of Polish farm workers into eastern Germany as local labourers migrated to Germany's rapidly industrialising cities. Weber was put in charge of the study and wrote a large part of the final report, which generated considerable attention and controversy, marking the beginning of Weber's renown as a social scientist. From 1893 to 1899, Weber was a member of the Alldeutscher Verband (Pan-German League), an organization that campaigned against the influx of the Polish workers; the degree of Weber's support for the Germanisation of Poles and similar nationalist policies is still debated by modern scholars. In some of his work, in particular his provocative lecture on "The Nation State and Economic Policy" delivered in 1895, Weber criticises the immigration of Poles and blames the Junker class for perpetuating Slavic immigration to serve their selfish interests. Weber and his wife, Marianne, moved to Freiburg in 1894, where Weber was appointed professor of economics at the Albert-Ludwigs University, before accepting the same position at the University of Heidelberg in 1896. There, Weber became a central figure in the so-called "Weber Circle", composed of other intellectuals, including his wife Marianne, as well as Georg Jellinek, Ernst Troeltsch, Werner Sombart and Robert Michels. Weber also remained active in the Verein and the Evangelical Social Congress. His research in that period was focused on economics and legal history. Mental health concerns In 1897, Weber Sr. died two months after a severe quarrel with his son that was never resolved. After this, Weber became increasingly prone to depression, nervousness and insomnia, making it difficult for him to fulfill his duties as a professor. His condition forced him to reduce his teaching and eventually leave his course unfinished in the autumn of 1899. After spending the summer and autumn of 1900 in a sanatorium, Weber and his wife travelled to Italy at the end of the year, not returning to Heidelberg until April 1902. He would again withdraw from teaching in 1903 and would not return until 1919. Weber's ordeal with mental illness was carefully described in a personal chronology that was destroyed by his wife. This chronicle was supposedly destroyed because Marianne feared that Weber's work would be discredited by the Nazis if his experience with mental illness were widely known. Later work After Weber's immense productivity in the early 1890s, he did not publish any papers between early 1898 and late 1902, finally resigning his professorship in late 1903. Freed from those obligations, in that year he accepted a position as associate editor of the Archives for Social Science and Social Welfare, where he worked with his colleagues and Werner Sombart. His new interests would lie in more fundamental issues of social sciences; his works from this latter period are of primary interest to modern scholars. In 1904, Weber began to publish some of his most seminal papers in this journal, notably his essay The Protestant Ethic and the Spirit of Capitalism, which became his most famous work and laid the foundations for his later research on the impact of cultures and religions on the development of economic systems. This essay was the only one of his works from that period that was published as a book during his lifetime. Some other of his works written in the first one and a half decades of the 20th centurypublished posthumously and dedicated primarily from the fields of sociology of religion, economic and legal sociologyare also recognised as among his most important intellectual contributions. Also in 1904, Weber visited the United States, participating in the Congress of Arts and Sciences held in connection with the World's fair (Louisiana Purchase Exposition) in St. Louis. A monument to his visit was placed at the home of relatives whom Weber visited in Mt. Airy, North Carolina. Despite his partial recovery evident in America, Weber felt that he was unable to resume regular teaching at that time and continued on as a private scholar, helped by an inheritance in 1907. In 1909, disappointed with the Verein, he co-founded the German Sociological Association (, or DGS) and served as its first treasurer, though resigning in 1912. Political involvements Later in 1912, Weber tried to organise a left-wing political party to combine social-democrats and liberals. This attempt was unsuccessful, in part because many liberals feared social-democratic revolutionary ideals. World War I At the outbreak of World War I, Weber, aged 50, volunteered for service and was appointed as a reserve officer in charge of organizing the army hospitals in Heidelberg, a role he fulfilled until the end of 1915. Weber's views on the war and the expansion of the German empire changed during the course of the conflict. Early on, he supported nationalist rhetoric and the war effort, though with some hesitation, viewing the war as a necessity to fulfill German duty as a leading state power. In time, however, Weber became one of the most prominent critics of German expansionism and of the Kaiser's war policies. Weber publicly attacked the Belgian annexation policy and unrestricted submarine warfare, later supporting calls for constitutional reform, democratisation, and universal suffrage. Post-World War I Weber joined the worker and soldier council of Heidelberg in 1918. He then served in the German delegation to the Paris Peace Conference and as advisor to the Confidential Committee for Constitutional Reform, which drafted the Weimar Constitution. Motivated by his understanding of the American model, he advocated a strong, popularly elected presidency as a constitutional counterbalance to the power of the professional bureaucracy. More controversially, he also defended the provisions for emergency presidential powers that became Article 48 of the Weimar Constitution. These provisions were later used by Adolf Hitler to subvert the rest of the constitution and institute rule by decree, allowing his regime to suppress opposition and gain dictatorial powers. Weber would also run, though unsuccessfully, for a parliamentary seat, as a member of the liberal German Democratic Party, which he had co-founded. He opposed both the leftist German Revolution of 1918–1919 and the ratification of the Treaty of Versailles, principled positions that defied the political alignments in Germany at that time, and which may have prevented Friedrich Ebert, the new social-democratic President of Germany, from appointing Weber as minister or ambassador. Weber commanded widespread respect but relatively little influence. Weber's role in German politics remains controversial to this day. In Weber's critique of the left, he complained of the leaders of the leftist Spartacus League, led by Karl Liebknecht and Rosa Luxemburg, that controlled the city government of Berlin while Weber was campaigning for his party:We have this [German] revolution to thank for the fact that we cannot send a single division against the Poles. All we see is dirt, muck, dung, and horse-playnothing else. Liebknecht belongs in the madhouse and Rosa Luxemburg in the zoological gardens. Weber was, at the same time, critical of the Versailles Treaty, which he believed unjustly assigned "war guilt" to Germany when it came to the war, as Weber believed that many countries were guilty of starting it, not just Germany. In making this case, Weber argued: In the case of this war there is one, and only one power that desired it under all circumstances through its own will and, according to their political goals required: Russia.... It never crossed [my] mind that a German invasion of Belgium [in 1914] was nothing but an innocent act on the part of the Germans. Later that same month, in January 1919, after Weber and his party were defeated for election, Weber delivered one of his greatest academic lectures, "Politics as a Vocation", which reflected on the inherent violence and dishonesty he saw among politiciansa profession in which only recently Weber was so personally active. About the nature of politicians, he concluded that, "in nine out of ten cases they are windbags puffed up with hot air about themselves. They are not in touch with reality, and they do not feel the burden they need to shoulder; they just intoxicate themselves with romantic sensations." Last years Frustrated with politics, Weber resumed teaching during this time, first at the University of Vienna, then, after 1919, at the University of Munich. His lectures from that period were collected into major works, such as the General Economic History, Science as a Vocation, and Politics as a Vocation. In Munich, he headed the first German university institute of sociology, but never held a professorial position in the discipline. Many colleagues and students in Munich attacked his response to the German Revolution, while some right-wing students held protests in front of his home. On 14 June 1920, Max Weber contracted the Spanish flu and died of pneumonia in Munich. At the time of his death, Weber had not finished writing his on sociological theory: Economy and Society. His widow, Marianne, helped prepare it for its publication in 1921–1922. Methodology Sociology, for Max Weber, is "a science which attempts the interpretive understanding of social action in order thereby to arrive at a causal explanation of its course and effects". Made clear in his methodology, Weber distinguished himself from Durkheim, Marx, and other classical figures, in that (a) his primary focus would be on individuals and culture; and (b) unlike theorists such as Comte and Durkheim, he did not (consciously) attempt to create any specific set of rules governing sociology or the social sciences in general. Whereas Durkheim focused on the society, Weber concentrated on the individual and their actions (i.e. structure and action). Compared to Marx, who argued for the primacy of the material world over the world of ideas, Weber valued ideas as motivating actions of individuals, at least in the big picture. Verstehen Weber would primarily be concerned with the question of objectivity and subjectivity, going on to distinguish social action from social behavior, noting that social action must be understood through how individuals subjectively relate to one another. Study of social action through interpretive means or ("to understand") must be based upon understanding the subjective meaning and purpose that individuals attach to their actions. Social actions may have easily identifiable and objective means, but much more subjective ends and the understanding of those ends by a scientist is subject to yet another layer of subjective understanding (that of the scientist). Weber noted that the importance of subjectivity in social sciences makes creation of fool-proof, universal laws much more difficult than in natural sciences and that the amount of objective knowledge that social sciences may achieve is precariously limited. Overall, Weber supported the goal of objective science as one definitely worth striving for, though he noted that it is ultimately an unreachable goal: The principle of methodological individualism, which holds that social scientists should seek to understand collectivities (e.g. nations, cultures, governments, churches, corporations, etc.) solely as the result and the context of the actions of individual persons, can be traced to Weber, particularly to the first chapter of Economy and Society, in which he argues that only individuals "can be treated as agents in a course of subjectively understandable action". In other words, Weber contended that social phenomena can be understood scientifically only to the extent that they are captured by models of the behaviour of purposeful individualsmodels that Weber called "ideal types"from which actual historical events necessarily deviate due to accidental and irrational factors. The analytical constructs of an ideal type never exist in reality, but provide objective benchmarks against which real-life constructs can be measured: Weber's methodology was developed in the context of a wider debate about methodology of social sciences, the Methodenstreit ("method dispute"). Weber's position was close to historicism, as he understood social actions as being heavily tied to particular historical contexts and its analysis required the understanding of subjective motivations of individuals (social actors). Thus Weber's methodology emphasises the use of comparative historical analysis. As such, Weber was more interested in explaining how a certain outcome was the result of various historical processes rather than predicting an outcome of those processes in the future. Theories Bureaucratic model (rational-legal model) Max Weber's theory of bureaucracy, also known as the "rational-legal" model, attempts to explain bureaucracy from a rational point of view. Firstly, Weber argued that bureaucracy is "based on the general principle of precisely defined and organized across-the-board competencies of the various offices" which are "underpinned by rules, laws, or administrative regulations." In particular, Weber notes three aspects that "constitute the essence of bureaucratic administration" in the public sector, and "the essence of a bureaucratic management of a private company" in the private sector: A rigid division of labor is established that clearly identifies regular tasks and duties of the particular bureaucratic system. Regulations describe firmly established chains of command and the duties and capacity to coerce others to comply. Hiring people with particular, certified qualifications supports regular and continuous execution of the assigned duties. In this sense, Weber would explain bureaucracy through nine main characteristics/principles: Specialized roles Recruitment based on merit (e.g. tested through open competition) Uniform principles of placement, promotion, and transfer in an administrative system Careerism with systematic salary structure Hierarchy, responsibility and accountability Subjection of official conduct to strict rules of discipline and control Supremacy of abstract rules Impersonal authority (e.g. office bearer does not bring the office with them) Political neutrality Benefits of bureaucracy As Weber noted, real bureaucracy is less optimal and effective than his ideal-type model. Each of Weber's principles can degenerate, especially when used to analyze individual levels in an organization. However, when implemented in a group setting in an organization, some form of efficiency and effectiveness can be achieved, especially with regard to better output. This is especially true when the Bureaucratic Model emphasizes qualification (merits), specialization of job-scope (labour), hierarchy of power, rules, and discipline. Weaknesses of bureaucracy Competencies, efficiency and effectiveness can be unclear and contradictory, especially when dealing with oversimplified matters. In a dehumanized bureaucracyinflexible in distributing the job-scope, with every worker having to specialize from day one without rotating tasks for fear of decreasing outputtasks are often routine and can contribute to boredom. Thus, employees can sometimes feel that they are not part of the organization's work vision and mission. Consequently, they do not have any sense of belonging in the long term. Furthermore, this type of organization tends to invite exploitation and underestimate the potential of the employees, as creativity of the workers is brushed aside in favour of strict adherence to rules, regulations and procedures. Rationalisation Many scholars have described rationalisation and the question of individual freedom in an increasingly rational society, as the main theme of Weber's work. This theme was situated in the larger context of the relationship between psychological motivations, cultural values and beliefs (primarily religion), and the structure of the society (usually determined by the economy). Weber understood rationalisation, first, as the individual cost-benefit calculation; second, as the wider bureaucratic organisation of the organisations; and finally, in the more general sense, as the opposite of understanding the reality through mystery and magic (i.e. disenchantment).The fate of our times is characterised by rationalisation and intellectualisation and, above all, by the "disenchantment of the world". Weber began his studies of the subject in The Protestant Ethic and the Spirit of Capitalism, in which he argued that the redefinition of the connection between work and piety in Protestantism and especially in ascetic Protestant denominations, particularly Calvinism, shifted human effort towards rational efforts aimed at achieving economic gain. In the Protestant religion, piety towards God was expressed through one's secular vocation (secularisation of calling). The rational roots of this doctrine, he argued, soon grew incompatible with and larger than the religious and so the latter were eventually discarded. Weber continued his investigation into this matter in later works, notably in his studies on bureaucracy and on the classification of legitimate authority into three typesrational-legal, traditional and charismaticof which the rational-legal (through bureaucracy) is the dominant one in the modern world. In these works Weber described what he saw as society's movement towards rationalisation. Similarly, rationalisation could be seen in the economy, with the development of highly rational and calculating capitalism. Weber also saw rationalisation as one of the main factors setting the European West apart from the rest of the world. Rationalisation relied on deep changes in ethics, religion, psychology and culture; changes that first took place in the Western civilisation: Features of rationalisation include increasing knowledge, growing impersonality and enhanced control of social and material life. Weber was ambivalent towards rationalisation; while admitting it was responsible for many advances, in particular, freeing humans from traditional, restrictive and illogical social guidelines, he also criticised it for dehumanising individuals as "cogs in the machine" and curtailing their freedom, trapping them in the bureaucratic iron cage of rationality and bureaucracy. Related to rationalisation is the process of disenchantment, in which the world is becoming more explained and less mystical, moving from polytheistic religions to monotheistic ones and finally to the Godless science of modernity. However, another interpretation of Weber's theory of disenchantment, advanced by historian of religion Jason Josephson-Storm, claims that Weber does not envision a binary between rationalisation and magical thinking, and that Weber actually referred to the sequestering and professionalisation of magic when he described disenchantment, not to the disappearances of magic. Regardless, for Weber the processes of rationalisation affect all of society, removing "sublime values... from public life" and making art less creative. In a dystopian critique of rationalisation, Weber notes that modern society is a product of an individualistic drive of the Reformation, yet at the same time, the society created in this process is less and less welcoming of individualism: "How is it at all possible to salvage any remnants of 'individual' freedom of movement in any sense given this all-powerful trend?" Sociology of religion Weber's work in the field of sociology of religion began with the essay The Protestant Ethic and the Spirit of Capitalism and continued with his analyses in The Religion of China, The Religion of India, and Ancient Judaism. His work on other religions, however, would be interrupted by his sudden death in 1920, which prevented him from following Ancient Judaism with studies of early Christianity and Islam. The three main themes within the essays were: the effect of religious ideas on economic activities; the relation between social stratification and religious ideas; and the distinguishable characteristics of Western civilisation. Weber saw religion as one of the core forces in society. His goal was to find reasons for the different development paths of the cultures of the Occident and the Orient, although without judging or valuing them, like some of the contemporary thinkers who followed the social Darwinist paradigm; Weber wanted primarily to explain the distinctive elements of the Western civilisation. He maintained that Calvinist (and more widely, Protestant) religious ideas had a major impact on the social innovation and development of the economic system of the West, but noted that they were not the only factors in this development. Other notable factors mentioned by Weber included the rationalism of scientific pursuit, merging observation with mathematics, science of scholarship and jurisprudence, rational systematisation and bureaucratisation of government administration and economic enterprise. In the end, the study of the sociology of religion, according to Weber, focused on one distinguishing part of the Western culture, the decline of beliefs in magic, or what he referred to as "disenchantment of the world". Weber also proposed a socio-evolutionary model of religious change, showing that in general, societies have moved from magic to polytheism, then to pantheism, monotheism and finally, ethical monotheism. According to Weber, this evolution occurred as the growing economic stability allowed professionalisation and the evolution of ever more sophisticated priesthood. As societies grew more complex and encompassed different groups, a hierarchy of gods developed and as power in the society became more centralised, the concept of a single, universal God became more popular and desirable. The Protestant Ethic and the Spirit of Capitalism The Protestant Ethic and the Spirit of Capitalism is Weber's most famous work. It has been argued that this work should not be viewed as a detailed study of Protestantism, but rather as an introduction into Weber's later works, especially his studies of interaction between various religious ideas and economic behaviour as part of the rationalisation of the economic sphere. In the essay, Weber puts forward the thesis that Calvinist ethic and ideas influenced the development of capitalism. He notes the post-Reformation shift of Europe's economic centre away from Catholic countries such as France, Spain and Italy, and toward Protestant countries such as the Netherlands, England, Scotland and Germany. Weber also notes that societies having more Protestants were those with a more highly developed capitalist economy. Similarly, in societies with different religions, most successful business leaders were Protestant. Weber thus argued that Roman Catholicism impeded the development of the capitalist economy in the West, as did other religions such as Confucianism and Buddhism elsewhere in the world: Christian religious devotion had historically been accompanied by rejection of mundane affairs, including economic pursuit. Weber showed that certain types of Protestantismnotably Calvinismwere supportive of rational pursuit of economic gain and worldly activities dedicated to it, seeing them as endowed with moral and spiritual significance. Weber argued that there were many reasons to look for the origins of modern capitalism in the religious ideas of the Reformation. In particular, the Protestant ethic (or more specifically, Calvinist ethic) motivated the believers to work hard, be successful in business and reinvest their profits in further development rather than frivolous pleasures. The notion of calling meant that each individual had to take action as an indication of their salvation; just being a member of the Church was not enough. Predestination also reduced agonising over economic inequality and further, it meant that a material wealth could be taken as a sign of salvation in the afterlife. The believers therefore justified pursuit of profit with religion, as instead of being fuelled by morally suspect greed or ambition, their actions were motivated by a highly moral and respected philosophy. Weber would call this the "spirit of capitalism": it was the Protestant religious ideology that was behindand inevitably led tothe capitalist economic system. This theory is often viewed as a reversal of Marx's thesis that the economic "base" of society determines all other aspects of it. Weber abandoned research into Protestantism as his colleague Ernst Troeltsch, a professional theologian, had begun work on the book Social Teachings of the Christian Churches and Sects. Another reason for Weber's decision was that Troeltsch's work already achieved what he desired in that area: laying the groundwork for a comparative analysis of religion and society. The phrase "work ethic" used in modern commentary is a derivative of the "Protestant ethic" discussed by Weber. It was adopted when the idea of the Protestant ethic was generalised to apply to the Japanese people, Jews and other non-Christians and thus lost its religious connotations. The Religion of China The Religion of China: Confucianism and Taoism was Weber's second major work on the sociology of religion. Hans H. Gerth edited and translated this text into English, with an introduction by C.K. Wang. Weber focused on those aspects of Chinese society that were different from those of Western Europe, especially those aspects that contrasted with Puritanism. His work also questioned why capitalism did not develop in China. He focused on the issues of Chinese urban development, Chinese patrimonialism and officialdom and Chinese religion and philosophy (primarily, Confucianism and Taoism), as the areas in which Chinese development differed most distinctively from the European route. According to Weber, Confucianism and Puritanism are mutually exclusive types of rational thought, each attempting to prescribe a way of life based on religious dogma. Notably, they both valued self-control and restraint and did not oppose accumulation of wealth. However, to both those qualities were just means to the final goal and here they were divided by a key difference. Confucianism's goal was "a cultured status position", while Puritanism's goal was to create individuals who are "tools of God". The intensity of belief and enthusiasm for action were rare in Confucianism, but common in Protestantism. Actively working for wealth was unbecoming a proper Confucian. Therefore, Weber states that it was this difference in social attitudes and mentality, shaped by the respective, dominant religions, that contributed to the development of capitalism in the West and the absence of it in China. The Religion of India The Religion of India: The Sociology of Hinduism and Buddhism was Weber's third major work on the sociology of religion. In this work he deals with the structure of Indian society, with the orthodox doctrines of Hinduism and the heterodox doctrines of Buddhism, with modifications brought by the influence of popular religiosity and finally with the impact of religious beliefs on the secular ethic of Indian society. In Weber's view, Hinduism in India, like Confucianism in China, was a barrier for capitalism. The Indian caste system made it very difficult for individuals to advance in the society beyond their caste. Activity, including economic activity, was seen as unimportant in the context of the advancement of the soul. Weber ended his research of society and religion in India by bringing in insights from his previous work on China to discuss similarities of the Asian belief systems. He notes that the beliefs saw the meaning of life as otherworldly mystical experience. The social world is fundamentally divided between the educated elite, following the guidance of a prophet or wise man and the uneducated masses whose beliefs are centered on magic. In Asia, there was no Messianic prophecy to give plan and meaning to the everyday life of educated and uneducated alike. Weber juxtaposed such Messianic prophecies (aka ethical prophecies), notably from the Near East region to the exemplary prophecies found on the Asiatic mainland, focused more on reaching to the educated elites and enlightening them on the proper ways to live one's life, usually with little emphasis on hard work and the material world. It was those differences that prevented the countries of the Occident from following the paths of the earlier Chinese and Indian civilisations. His next work, Ancient Judaism was an attempt to prove this theory. Ancient Judaism In Ancient Judaism, his fourth major work on the sociology of religion, Weber attempted to explain the factors that resulted in the early differences between Oriental and Occidental religiosity. He contrasted the innerworldly asceticism developed by Western Christianity with mystical contemplation of the kind developed in India. Weber noted that some aspects of Christianity sought to conquer and change the world, rather than withdraw from its imperfections. This fundamental characteristic of Christianity (when compared to Far Eastern religions) stems originally from ancient Jewish prophecy. Weber claimed that Judaism not only fathered Christianity and Islam, but was crucial to the rise of the modern Occidental state; Judaism's influence was as important as Hellenistic and Roman cultures. Weber's death in 1920 prevented him from following his planned analysis of Psalms, the Book of Job, Talmudic Jewry, early Christianity and Islam. Theodicy of fortune and misfortune The 'theodicy of fortune and misfortune' within sociology is the theory, as Weber suggested, of how "members of different social classes adopt different belief systems, or theodices, to explain their social situation." The concept of theodicy was expanded mainly with the thought of Weber and his addition of ethical considerations to the subject of religion. There is an ethical part of religion, that includes: Soteriology: how people understand themselves to be capable of a correct relationship with supernatural powers; and Theodicy: how to explain evilor why bad things seem to happen to those who seem to be good people. There is a separation of different theodicies with regard to class: "theodicies of misfortune tend to the belief that wealth and other manifestations of privilege are indications or signs of evil.... In contrast, theodicies of fortune emphasise the notion that privileges are a blessing and are deserved." Weber also distinguishes that, "the affluent embrace good fortune theodicies, which emphasise that prosperity is a blessing of God [while] theodices of misfortune emphasise that affluence is a sign of evil and that suffering in this world will be rewarded in the next." Therefore, these two distinctions can be applied not only to class structure within society but denomination and racial segregation within religion. Weber defines the importance of societal class within religion by examining the difference between the two theodicies and to what class structures they apply. The concept of "work ethic" is attached to the theodicy of fortune; thus, because of the Protestant "work ethic", there was a contribution of higher class outcomes and more education among Protestants. Those without the work ethic clung to the theodicy of misfortune, believing wealth and happiness were granted in the afterlife. Another example of how this belief of religious theodicy influences class, is that those of lower status, the poor, cling to deep religiousness and faith as a way to comfort themselves and provide hope for a more prosperous future, while those of higher status cling to the sacraments or actions that prove their right of possessing greater wealth. These two theodicies manifest in socioeconomic stratification within religiously similar groups. For example, U.S. American "mainline" Protestant churches with upper class congregations generally "promote order, stability, and conservatism, and in so doing proved to be a powerful source of legitimation of the status quo and of existing disparities in the distribution of wealth and power," because much of the wealth of the church comes from the congregation. In contrast, Pentecostal churches find their roots in among working class persons with a theodicy of misfortune. Instead of supporting status quo, these churches may advocate "change intended to advance the cause of justice and fairness". The theodicies of these churches, which are enmeshed in their origins, practices, and preaching, thus reinforce segregation by social class. The state, politics, and government In political sociology, one of Weber's most influential contributions is his essay "Politik als Beruf" ("Politics as a Vocation"), in which he defines "the state" as an entity that possesses a monopoly on the legitimate use of physical force. Accordingly, Weber proposed that politics is the sharing of state power between various groups, whereas political leaders are those who wield this power. As such, a politician, in Weber's view, must not be a man of the "true Christian ethic" (i.e. the ethic of the Sermon on the Mount), in that one cannot have the injunction to 'turn the other cheek'. An adherent of such an ethic ought rather to be understood as a saint, for it is only saints, according to Weber, that can appropriately follow it. The political realm is no realm for saints; a politician ought to marry the verantwortungsethik and the gesinnungsethik ("ethic of attitude" and the "ethic of responsibility") and must possess both a passion for his vocation and the capacity to distance himself from the subject of his exertions (the governed). Weber distinguished three ideal types of political leadership (aka three types of domination, legitimisation or authority): Charismatic authority (familial and religious); Traditional authority (patriarchs, patrimonialism, feudalism); and Legal authority (modern law and state, bureaucracy). In his view, every historical relation between rulers and ruled contained such elements, which can be analysed on the basis of this tripartite distinction. Weber notes that the instability of charismatic authority forces it to "routinise" into a more structured form of authority. In a pure type of traditional rule, sufficient resistance to a ruler can lead to a "traditional revolution". The move towards a rational-legal structure of authority, using a bureaucratic structure, is inevitable in the end. Thus this theory can be sometimes viewed as part of the social evolutionism theory. This ties to his broader concept of rationalisation by suggesting the inevitability of a move in this direction. Weber described many ideal types of public administration and government in his masterpiece Economy and Society (1922). His critical study of the bureaucratisation of society became one of the most enduring parts of his work. It was Weber who began the studies of bureaucracy and whose works led to the popularisation of this term. Many aspects of modern public administration go back to him and a classic, hierarchically organised civil service of the Continental type is called "Weberian civil service". As the most efficient and rational way of organising, bureaucratisation for Weber was the key part of the rational-legal authority and furthermore, he saw it as the key process in the ongoing rationalisation of the Western society. Weber listed several preconditions for the emergence of the bureaucracy, which resulted in a need for a more efficient administrative system, including: The growth in space and population being administered The growth in complexity of the administrative tasks being carried out and the existence of a monetary economy. Development of communication and transportation technologies made more efficient administration possible (and popularly requested) and democratisation and rationalisation of culture resulted in demands that the new system treat everybody equally. Weber's ideal bureaucracy is characterised by hierarchical organisation, by delineated lines of authority in a fixed area of activity, by action taken (and recorded) on the basis of written rules, by bureaucratic officials needing expert training, by rules being implemented neutrally and by career advancement depending on technical qualifications judged by organisations, not by individuals. While recognising bureaucracy as the most efficient form of organisation and even indispensable for the modern state, Weber also saw it as a threat to individual freedoms and the ongoing bureaucratisation as leading to a "polar night of icy darkness", in which increasing rationalisation of human life traps individuals in the aforementioned "iron cage" of bureaucratic, rule-based, rational control. To counteract bureaucrats, the system needs entrepreneurs and politicians. Social stratification Weber also formulated a three-component theory of stratification, with social class, social status and political party as conceptually distinct elements. The three-component theory of stratification is in contrast to Karl Marx simpler theory of social class that ties all social stratification to what people own. In Weber's theory, issues of honour and prestige are important. This distinction is most clearly described in Weber's essay Classes, Staende, Parties, which was first published in his book Economy and Society. The three components of Weber's theory are: Social class: based on economically determined relationship to the market (owner, renter, employee, etc.) Status (): based on non-economic qualities like honour, prestige and religion Party: affiliations in the political domain All three dimensions have consequences for what Weber called "life chances" (opportunities to improve one's life). Weber scholars maintain a sharp distinction between the terms status and class, even though, in casual use, people tend to use them interchangeably. Study of the city As part of his overarching effort to understand the unique development of the Western world, Weber produced a detailed general study of the city as the characteristic locus of the social and economic relations, political arrangements, and ideas that eventually came to define the West. This resulted in a monograph, The City, which he probably compiled from research conducted in 1911–1913. It was published posthumously in 1921, and, in 1924, was incorporated into the second part of his Economy and Society, as the sixteenth chapter, "The City (Non-legitimate Domination)". According to Weber, the city as a politically autonomous organisation of people living in close proximity, employed in a variety of specialised trades, and physically separated from the surrounding countryside, only fully developed in the West and to a great extent shaped its cultural evolution: Weber argued that Judaism, early Christianity, theology, and later the political party and modern science, were only possible in the urban context that reached a full development in the West alone. He also saw in the history of medieval European cities the rise of a unique form of "non-legitimate domination" that successfully challenged the existing forms of legitimate domination (traditional, charismatic, and rational-legal) that had prevailed until then in the Medieval world. This new domination was based on the great economic and military power wielded by the organised community of city-dwellers ("citizens"). Economics Weber regarded himself primarily as a "political economist", and all his professorial appointments were in economics, though today his contributions in that field are largely overshadowed by his role as a founder of modern sociology. As an economist, Weber belonged to the "youngest" German historical school of economics. The great differences between that school's interests and methods on the one hand and those of the neoclassical school (from which modern mainstream economics largely derives) on the other, explain why Weber's influence on economics today is hard to discern. Economy and Society Weber's magnum opus Economy and Society is a collection of his essays that he was working on at the time of his death in 1920. After his death, the final organization and editing of the book fell to his widow Marianne. The final German form published in 1921 reflected very much Marianne's work and intellectual commitment. The composition includes a wide range of essays dealing with Weber's views regarding sociology, social philosophy, politics, social stratification, world religion, diplomacy, and other subjects. Beginning in 1956, the German jurist Johannes Winckelmann began editing and organizing the German edition of Economy and Society based on his study of the papers that Weber left at his death. English versions of the work were published as a collected volume in 1968, as edited by Gunther Roth and Claus Wittich. As a result of the various editions in German and English, there are differences between the organization of the different volumes. The book is typically published in a two volume set in both German and English, and is more than 1000 pages long. Methodological individualism Though his research interests were always in line with those of the German historicists, with a strong emphasis on interpreting economic history, Weber's defence of "methodological individualism" in the social sciences represented an important break with that school and an embracing of many of the arguments that had been made against the historicists by Carl Menger, the founder of the Austrian School of economics, in the context of the academic Methodenstreit ("debate over methods") of the late 19th century. The phrase methodological individualism, which has come into common usage in modern debates about the connection between microeconomics and macroeconomics, was coined by the Austrian-American economist Joseph Schumpeter in 1908 as a way of referring to the views of Weber. According to Weber's theses, social research cannot be fully inductive or descriptive, because understanding some phenomenon implies that the researcher must go beyond mere description and interpret it; interpretation requires classification according to abstract "ideal (pure) types". This, together with his antipositivistic argumentation (see Verstehen), can be taken as a methodological justification for the model of the "rational economic man" (homo economicus), which is at the heart of modern mainstream economics. Marginalism and psychophysics Unlike other historicists, Weber also accepted the marginal theory of value (aka "marginalism") and taught it to his students. In 1908, Weber published an article in which he drew a sharp methodological distinction between psychology and economics and attacked the claims that the marginal theory of value in economics reflected the form of the psychological response to stimuli as described by the Weber-Fechner law. Max Weber's article has been cited as a definitive refutation of the dependence of the economic theory of value on the laws of psychophysics by Lionel Robbins, George Stigler, and Friedrich Hayek, though the broader issue of the relation between economics and psychology has come back into the academic debate with the development of "behavioral economics". Economic history Weber's best known work in economics concerned the preconditions for capitalist development, particularly the relations between religion and capitalism, which he explored in The Protestant Ethic and the Spirit of Capitalism as well as in his other works on the sociology of religion. He argued that bureaucratic political and economic systems emerging in the Middle Ages were essential in the rise of modern capitalism (including rational book-keeping and organisation of formally free labour), while they were a hindrance in the case of ancient capitalism, which had a different social and political structure based on conquest, slavery, and the coastal city-state. Other contributions include his early work on the economic history of Roman agrarian society (1891) and on the labour relations in Eastern Germany (1892), his analysis of the history of commercial partnerships in the Middle Ages (1889), his critique of Marxism, the discussion of the roles of idealism and materialism in the history of capitalism in his Economy and Society (1922) and his General Economic History (1923), a notable example of the kind of empirical work associated with the German Historical School. Although today Weber is primarily read by sociologists and social philosophers, Weber's work did have a significant influence on Frank Knight, one of the founders of the neoclassical Chicago school of economics, who translated Weber's General Economic History into English in 1927. Knight also wrote in 1956 that Max Weber was the only economist who dealt with the problem of understanding the emergence of modern capitalism "...from the angle which alone can yield an answer to such questions, that is, the angle of comparative history in the broad sense." Economic calculation Weber, like his colleague Werner Sombart, regarded economic calculation and especially the double-entry bookkeeping method of business accounting, as one of the most important forms of rationalisation associated with the development of modern capitalism. Weber's preoccupation with the importance of economic calculation led him to critique socialism as a system that lacked a mechanism for allocating resources efficiently to satisfy human needs. Socialist intellectuals like Otto Neurath had realised that in a completely socialised economy, prices would not exist and central planners would have to resort to in-kind (rather than monetary) economic calculation. According to Weber, this type of coordination would be inefficient, especially because it would be incapable of solving the problem of imputation (i.e. of accurately determining the relative values of capital goods). Weber wrote that, under full socialism: This argument against socialism was made independently, at about the same time, by Ludwig von Mises. Weber himself had a significant influence on Mises, whom he had befriended when they were both at the University of Vienna in the spring of 1918, and, through Mises, on several other economists associated with the Austrian School in the 20th century. Friedrich Hayek in particular elaborated the arguments of Weber and Mises about economic calculation into a central part of free market economics's intellectual assault on socialism, as well as into a model for the spontaneous coordination of "dispersed knowledge" in markets. Inspirations Kantianism Weber's thinking was strongly influenced by German idealism, particularly by neo-Kantianism, which he had been exposed to through Heinrich Rickert, his professorial colleague at the University of Freiburg. Especially important to Weber's work is the neo-Kantian belief that reality is essentially chaotic and incomprehensible, with all rational order deriving from the way the human mind focuses attention on certain aspects of reality and organises the resulting perceptions. Weber's opinions regarding the methodology of the social sciences show parallels with the work of contemporary neo-Kantian philosopher and pioneering sociologist Georg Simmel. Weber was also influenced by Kantian ethics, which he nonetheless came to think of as obsolete in a modern age lacking in religious certainties. In this last respect, the influence of Friedrich Nietzsche's philosophy is evident. According to the Stanford Encyclopedia of Philosophy, the "deep tension between the Kantian moral imperatives and a Nietzschean diagnosis of the modern cultural world is apparently what gives such a darkly tragic and agnostic shade to Weber's ethical worldview." Marxism Another major influence in Weber's life was the writings of Karl Marx and the workings of socialist thought in academia and active politics. While Weber shares some of Marx's consternation with bureaucratic systems and maligns them as being capable of advancing their own logic to the detriment of human freedom and autonomy, Weber views conflict as perpetual and inevitable and does not host the spirit of a materially available utopia. Writing in 1932, Karl Löwith, contrasted the work of Marx and Weber, arguing that both were interested in the causes and effects of Western Capitalism but that Marx viewed capitalism through the lens of alienation while Weber used the concept of rationalization. Though the influence of his mother's Calvinist religiosity is evident throughout Weber's life and work as he maintained a deep, lifelong interest in the study of religions, Weber was open about the fact that he was personally irreligious. Economics and historicism As a political economist and economic historian, Weber belonged to the "youngest" German historical school of economics, represented by academics such as Gustav von Schmoller and his student Werner Sombart. However, even though Weber's research interests were very much in line with this school, his views on methodology and the theory of value diverged significantly from those of other German historicists and were closer, in fact, to those of Carl Menger and the Austrian School, the traditional rivals of the historical school. Occultism New research suggests that some of Weber's theories, including his interest in the sociology of Far Eastern religion and elements of his theory of disenchantment, were actually shaped by Weber's interaction with contemporary German occult figures. He is known to have visited the Ordo Templi Orientis at Monte Verità shortly before articulating his idea of disenchantment. He is known to have met the German poet and occultist Stefan George and developed some elements of his theory of charisma after observing George. However, Weber disagreed with many of George's views and never formally joined George's occult circle. Weber may have also had his first exposure to Taoism, albeit in a Westernized form, through Gustav Gräser at Monte Verità. Research on Weber's engagement with the occult has led some German and American scholars to re-interpret his theories of disenchantment. Legacy Weber's most influential work was on economic sociology, political sociology, and the sociology of religion. Along with Karl Marx and Émile Durkheim, he is commonly regarded as one of the founders of modern sociology. But whereas Durkheim, following Comte, worked in the positivist tradition, Weber was instrumental in developing an antipositivist, hermeneutic, tradition in the social sciences. In this regard he belongs to a similar tradition as his German colleagues Werner Sombart, Georg Simmel, and Wilhelm Dilthey, who stressed the differences between the methodologies appropriate to the social and the natural sciences. Weber presented sociology as the science of human social action; action that he separated into traditional, affectional, value-rational and instrumental. To Weber, sociology was: In his own time, however, Weber was viewed primarily as a historian and an economist. The breadth of Weber's topical interests is apparent in the depth of his social theory, Joachim Radkau (2009) writing: Many of Weber's works famous today were collected, revised and published posthumously. Significant interpretations of his writings were produced by such sociological luminaries as Talcott Parsons and C. Wright Mills. Parsons in particular imparted to Weber's works a functionalist, teleological perspective; this personal interpretation has been criticised for a latent conservatism. Weber influenced many later social theorists, such as Theodor Adorno, Max Horkheimer, György Lukács and Jürgen Habermas. Different elements of his thought were emphasised by Ludwig Lachmann, Carl Schmitt, Joseph Schumpeter, Leo Strauss, Hans Morgenthau, and Raymond Aron. According to the Austrian economist Ludwig von Mises, who had met Weber during his time at the University of Vienna, "The early death of this genius was a great disaster for Germany. Had Weber lived longer, the German people of today would be able to look to this example of an 'Aryan' who would not be broken by National Socialism." Weber's friend, the psychiatrist and existentialist philosopher Karl Jaspers, described him as "the greatest German of our era". Weber's untimely death felt to Jaspers "as if the German world had lost its heart". Harvard professor Paul Tillich (1968) observed about Weber that he was "perhaps the greatest scholar in Germany of the nineteenth century". Nicholas Gane, argues that there are similarities between the work of postmodern philosopher, Michel Foucault and Weber, with both thinkers being concerned with the effects of rationalization on how people lead their lives. Gane argues that Foucault goes further than Weber in offering two methods for the individual to resist rationalization: by looking at the history of the development of rationalization in so-called genealogy, the factors that influenced this rationalization, and how rationalization differed in the past; and looking at how power relations and current knowledge interaction with particular rationalizations. Critical responses to Weber Weber's explanations are highly specific to the historical periods he analysed. Some academics disagree, pointing out that, despite the fact that Weber did write in the early twentieth century, his ideas remain alive and relevant for understanding issues like politics, bureaucracy, and social stratification today. Many scholars, however, disagree with specific claims in Weber's historical analysis. For example, the economist Joseph Schumpeter (1954) argued that capitalism did not begin with the Industrial Revolution but in 14th century Italy. In Milan, Venice and Florence, the small city-state governments led to the development of the earliest forms of capitalism. In the 16th century, Antwerp was a commercial centre of Europe. Also, the predominantly Calvinist country of Scotland did not enjoy the same economic growth as the Netherlands, England and New England. It has been pointed out that the Netherlands, which had a Calvinist majority, industrialised much later in the 19th century than predominantly Catholic Belgium, which was one of the centres of the Industrial Revolution on the European mainland. Emil Kauder (1953) expanded Schumpeter's argument, by arguing the hypothesis that Calvinism hurt the development of capitalism by leading to the development of the labour theory of value. Works For an extensive list of Max Weber's works, see Max Weber bibliography. Weber wrote in German. Original titles printed after his death (1920) are most likely compilations of his unfinished works (of the Collected Essays... form). Many translations are made of parts or sections of various German originals and the names of the translations often do not reveal what part of the original they contain. Weber's writings are generally cited according to the critical Max Weber-Gesamtausgabe (Collected Works), published by Mohr Siebeck in Tübingen. See also Interpretations of Max Weber's liberalism Robert Michels Sociology of law Speeches of Max Weber Werturteilsstreit References Notes Citations Further reading Bendix, Reinhard. 1960. Max Weber: an Intellectual Portrait. New York, Doubleday. Collins, R. 1986. Weberian Sociological Theory. New York: Cambridge University Press. Marra, Realino (1992), Dalla comunità al diritto moderno. La formazione giuridica di Max Weber. 1882–1889, Giappichelli, Torino — (1995), La libertà degli ultimi uomini. Studi sul pensiero giuridico e politico di Max Weber, Giappichelli, Torino — (2002), Capitalismo e anticapitalismo in Max Weber. Storia di Roma e sociologia del diritto nella genesi dell'opera weberiana, il Mulino, Bologna Quensel, Bernhard K. (2007). Max Webers Konstruktionslogik. Sozialökonomik zwischen Geschichte und Theorie. Nomos. . [Revisiting Weber's concept of sociology against the background of his juristic and economic provenance within the framework of "social economics"]. [The most important work on Weber's life and torments since the biography by Marianne Weber]. [Translation, with long introduction, of Weber's main writings on law]. Roth, Guenther (2001), Max Webers deutsch-englische Familiengeschichte, J.C.B. Mohr (Paul Siebeck), Lawrence A. Scaff: Max Weber in America, Princeton University Press, Princeton/Oxford, England External links Texts of his works Max Weber-Gesamtausgabe: collected works, in German; homepage Large collection of the German original texts A collection of English translations Max Weber Reference Archive Max Weber, On Politics (1919) Large collection of the German original texts A comprehensive collection of English translations and secondary literature Notes on several of Weber's works, merged into one text file Max weber aphorisms Analysis of his works Protestant Ethic Thesis by the Swatos' Encyclopedia of Religion and Society Max Weber Studies journal Other encyclopedic entries SocioSite: Famous SociologistsMax Weber Information resources on life, academic work and intellectual influence of Max Weber. Editor: Dr. Albert Benschop (University of Amsterdam). 1864 births 1920 deaths 19th-century German philosophers 19th-century German writers 19th-century German male writers 20th-century German philosophers 20th-century German writers Alldeutscher Verband members Continental philosophers Critics of work and the work ethic Cultural critics Deaths from pneumonia in Germany Deaths from Spanish flu Economic historians Economic sociologists German Democratic Party politicians German economists German nationalists German political philosophers German sociologists Heidelberg University alumni Heidelberg University faculty Historical school economists Humboldt University of Berlin alumni Ludwig Maximilian University of Munich faculty Members of the Bavarian Academy of Sciences National-Social Association politicians Writers from Erfurt People from the Province of Saxony Philosophers of culture Philosophers of economics Philosophers of history Rationality theorists German social commentators Social critics Social philosophers Sociologists of law Sociologists of religion Symbolic interactionism University of Freiburg faculty University of Göttingen alumni Writers about activism and social change

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https://en.wikipedia.org/wiki/Max%20Horkheimer

Max Horkheimer

Max Horkheimer (; ; 14 February 1895 – 7 July 1973) was a German philosopher and sociologist who was famous for his work in critical theory as a member of the Frankfurt School of social research. Horkheimer addressed authoritarianism, militarism, economic disruption, environmental crisis, and the poverty of mass culture using the philosophy of history as a framework. This became the foundation of critical theory. His most important works include Eclipse of Reason (1947), Between Philosophy and Social Science (1930–1938) and, in collaboration with Theodor Adorno, Dialectic of Enlightenment (1947). Through the Frankfurt School, Horkheimer planned, supported and made other significant works possible. Biography Early life On 14 February 1895, Horkheimer was born the only son of Moritz and Babetta Horkheimer. Horkheimer was born into a conservative, wealthy Orthodox Jewish family. His father was a successful businessman who owned several textile factories in the Zuffenhausen district of Stuttgart, where Max was born. Moritz expected his son to follow in his footsteps and own the family business. Max was taken out of school in 1910 to work in the family business, where he eventually became a junior manager. During this period he would begin two relationships that would last for the rest of his life. First, he met Friedrich Pollock, who would later become a close academic colleague, and who would remain Max's closest friend. He also met Rose Riekher, who was his father's personal secretary. Eight years Max's senior, a gentile, and of an economically lower class, Riekher (whom Max called "Maidon") was not considered a suitable match by Moritz Horkheimer. Despite this, Max and Maidon would marry in 1926 and remain together until her death in 1969. In 1917, his manufacturing career ended and his chances of taking over his family business were interrupted when he was drafted into World War I. However, Horkheimer avoided service, being rejected on medical grounds. Education In the spring of 1919, after failing an army physical, Horkheimer enrolled at Munich University. While living in Munich, he was mistaken for the revolutionary playwright Ernst Toller and arrested and imprisoned. After being released, Horkheimer moved to Frankfurt am Main, where he studied philosophy and psychology under the respectable Hans Cornelius. There, he met Theodor Adorno, several years his junior, with whom he would strike a lasting friendship and a collaborative relationship. After an abortive attempt at writing a dissertation on gestalt psychology, Horkheimer, with Cornelius's direction, completed his doctorate in philosophy with a 78-page dissertation titled The Antinomy of Teleological Judgment (Zur Antinomie der teleologischen Urteilskraft). In 1925, Horkheimer was habilitated with a dissertation entitled Kant's Critique of Judgment as Mediation between Practical and Theoretical Philosophy (Über Kants Kritik der Urteilskraft als Bindeglied zwischen theoretischer und praktischer Philosophie). Here, he met Friedrich Pollock, who would be his colleague at the Institute of Social Research. The following year, Max was appointed Privatdozent. Shortly after, in 1926, Horkheimer married Rose Riekher. Institute of Social Research (Institut für Sozialforschung) In 1926 Horkheimer was an "unsalaried lecturer in Frankfurt." Shortly after, in 1930, he was promoted to professor of philosophy at Frankfurt University. In the same year, when the Institute for Social Research's (now known as Frankfurt School of Critical Theory) directorship became vacant, after the departure of Carl Grünberg, Horkheimer was elected to the position "by means of an endowment from a wealthy businessman". The Institute had had its beginnings in a Marxist study group started by Felix Weil, a one-time student of political science at Frankfurt who used his inheritance to fund the group as a way to support his leftist academic aims. Pollock and Horkheimer were partners with Weil in the early activities of the institute. Horkheimer worked to make the Institute a purely academic enterprise. As director, he changed Frankfurt from an orthodox Marxist school to a heterodox school for critical social research . The following year publication of the institute's Zeitschrift für Sozialforschung began, with Horkheimer as its editor. Horkheimer intellectually reoriented the institute, proposing a programme of collective research aimed at specific social groups (specifically the working class) that would highlight the problem of the relationship of history and reason. The Institute focused on integrating the views of Karl Marx and Sigmund Freud. The Frankfurt School attempted this by systematically hitching together the different conceptual structures of historical materialism and psychoanalysis. During the time between Horkheimer's being named Professor of Social Philosophy and director of the Institute in 1930, the Nazis became the second largest party in the Reichstag. In the midst of the violence surrounding the Nazis' rise, Horkheimer and his associates began to prepare for the possibility of moving the Institute out of Germany. Horkheimer's venia legendi was revoked by the new Nazi government because of the Marxian nature of the institute's ideas as well as its prominent Jewish association. When Hitler was named the Chancellor in 1933, the institute was thus forced to close its location in Germany. He emigrated to Geneva, Switzerland and then to New York City the following year, where Horkheimer met with the president of Columbia University, Nicholas Murray Butler, to discuss hosting the institute. To Horkheimer's surprise, the president agreed to host the Institute in exile as well as offer Horkheimer a building for the institute. In July 1934 Horkheimer accepted an offer from Columbia to relocate the institute to one of their buildings. In 1940, Horkheimer received American citizenship and moved to the Pacific Palisades district of Los Angeles, California, where his collaboration with Adorno would yield the Dialectic of Enlightenment. In 1942, Horkheimer assumed the directorship of the Scientific Division of the American Jewish Committee. In this capacity, he helped launch and organize a series of five Studies in Prejudice, which were published in 1949 and 1950. The most important of these was the pioneering study in social psychology entitled The Authoritarian Personality, itself a methodologically advanced reworking of some of the themes treated in a collective project produced by the Institute in its first years of exile, Studies in Authority and Family. In the years that followed, Horkheimer did not publish much, although he continued to edit Studies in Philosophy and Social Science as a continuation of the Zeitschrift. In 1949, he returned to Frankfurt where the Institute for Social Research reopened in 1950. Between 1951 and 1953 Horkheimer was rector of the University of Frankfurt. In 1953, Horkheimer stepped down from director of the Institute and took on a smaller role in the institute, while Adorno became director. Horkheimer and Adorno were seen as the fathers of the institute. Later years Horkheimer continued to teach at the university until his retirement in the mid-1960s. In 1953, he was awarded the Goethe Plaque of the City of Frankfurt, and was later named an honorary citizen of Frankfurt for life. He returned to America in 1954 and 1959 to lecture as a frequent visiting professor at the University of Chicago. In the late 60s, Horkheimer supported Pope Paul VI's stand against artificial contraception, specifically the pill, arguing that it would lead to the end of romantic love. Legacy He remained an important figure until his death in Nuremberg in 1973. Max Horkheimer with the help of Theodor Adorno, Herbert Marcuse, Walter Benjamin, Leo Lowenthal, Otto Kirchheimer, Frederick Pollock and Neumann developed "Critical Theory". According to Larry Ray "Critical Theory" has "become one of the most influential social theories of the twentieth century". Thought Horkheimer's work is marked by a concern to show the relation between affect (especially suffering) and concepts (understood as action-guiding expressions of reason). In that, he responded critically to what he saw as the one-sidedness of both neo-Kantianism (with its focus on concepts) and Lebensphilosophie (with its focus on expression and world-disclosure). Horkheimer did not think that either was wrong, but he insisted that the insights of each school on its own could not adequately contribute to the repair of social problems. Horkheimer focused on the connections between social structures, networks/subcultures and individual realities and concluded that we are affected and shaped by the proliferation of products on the marketplace. It is also important to note that Horkheimer collaborated with Herbert Marcuse, Erich Fromm, Theodor Adorno and Walter Benjamin. Critical theory Through critical theory, a social theory focusing on critiquing and changing society, Horkheimer "attempted to revitalize radical social, and cultural criticism" and discussed authoritarianism, militarism, economic disruption, environmental crisis and the poverty of mass culture. Horkheimer helped to create critical theory through a mix of radical and conservative lenses that stem from radical Marxism and end up in "pessimistic Jewish transcendentalism". Horkheimer developed his critical theory by examining his own wealth while witnessing the juxtaposition of the bourgeois and the impoverished. This critical theory embraced the future possibilities of society and was preoccupied with forces which moved society toward rational institutions that would ensure a true, free, and just life. He was convinced of the need to "examine the entire material and spiritual culture of mankind" in order to transform society as a whole. Horkheimer sought to enable the working class to reclaim their power in order to resist the lure of fascism. Horkheimer stated himself that "the rationally organized society that regulates its own existence" was necessary along with a society that could "satisfy common needs". To satisfy these needs, it would need to engage with the social conditions within which people lived and in which their concepts and actions were formed. It reached out for a total understanding of history and knowledge. Through this, critical theory develops a "critique of bourgeois society through which 'ideology critique' attempted to locate the 'utopian content' of dominant systems of thought". Above all, critical theory sought to develop a critical perspective in the discussion of all social practices. Writing Between Philosophy and Social Science "Between Philosophy and Social Science" appeared between 1930 and 1938, during the time the Frankfurt school moved from Frankfurt to Geneva to Columbia University. It included: "Materialism and Morality", "The Present Situation of Moral Philosophy and the Tasks of an Institute for Social Research", "On the Problem of Truth", "Egoism and the Freedom Movement", "History and Psychology", "A New Concept of Ideology", "Remarks on Philosophical Anthropology", and "The Rationalism Debate in Contemporary Philosophy". It also included "The Present Situation of Social Philosophy and the Tasks for an Institute of Social Research", "Egoism and Freedom Movements" and "Beginnings of the Bourgeois Philosophy of History". The essays within "Between Philosophy and Social Science" were Horkheimer's attempts to "remove the individual from mass culture, a function for philosophy from the commodification of everything". Horkheimer was extremely invested in the individual. In one of his writings, he states, "When we speak of an individual as a historical entity, we mean not merely the space-time and the sense existence of a particular member of the human race, but in addition, his awareness of his own individuality as a conscious human being, including recognition of his own identity.". Horkheimer was a strong believer in individuals becoming aware of themselves and their conscious as human beings. This is important to Horkheimer because for workers, he is aware of individuals losing their identity in products, which affects the power an individual may have of him/herself. "The Present Situation of Social Philosophy and the Tasks for an Institute of Social Research" was not only included in this volume, but it was also used as Horkheimer's inaugural speech as director of the Frankfurt School. In this speech he related economic groups to the struggles and challenges of real life. Horkheimer often referenced human struggle and used this example in his speech because it was a topic he understood well. "Egoism and Freedom Movements" and "Beginnings of the Bourgeois Philosophy of History" are the longest of the essays. The first is an evaluation of Machiavelli, Hobbes and Vico; the latter discusses the bourgeois control. In Beginnings of the Bourgeois Philosophy of History, Horkheimer explained "what he learned from the bourgeois rise to power and what of the bourgeois he thought was worth preserving. The volume also looks at the individual as the "troubled center of philosophy." Horkheimer expressed that "there is no formula that defines the relationship among individuals, society and nature for all time". To understand the problem of the individual further, Horkheimer included two case studies on the individual: one on Montaigne and one on himself. Eclipse of Reason Horkheimer's book, Eclipse of Reason, started in 1941 and published in 1947, is broken into five sections: Means and Ends, Conflicting Panaceas, The Revolt of Nature, The Rise and Decline of the Individual, and On the Concept of Philosophy. The Eclipse of Reason focuses on the concept of reason within the history of Western philosophy, which can only be fostered in an environment of free, critical thinking while also linking positivist and instrumental reason with the rise of fascism. He distinguishes between objective, subjective and instrumental reason, and states that we have moved from the former through the center and into the latter (though subjective and instrumental reason are closely connected). Objective reason deals with universal truths that dictate that an action is either right or wrong. It is a concrete concept and a force in the world that requires specific modes of behavior. The focus in the objective faculty of reason is on the ends, rather than the means. Subjective reason is an abstract concept of reason, and focuses primarily on means. Specifically, the reasonable nature of the purpose of action is irrelevant – the ends only serve the purpose of the subject (generally self-advancement or preservation). To be "reasonable" in this context is to be suited to a particular purpose, to be "good for something else". This aspect of reason is universally conforming, and easily furnishes ideology. In instrumental reason, the sole criterion of reason is its operational value or purposefulness, and with this, the idea of truth becomes contingent on mere subjective preference (hence the relation with subjective reason). Because subjective/instrumental reason rules, the ideals of a society, for example democratic ideals, become dependent on the "interests" of the people instead of being dependent on objective truths. In his writing Horkheimer states, "Social power is today more than ever mediated by power over things. The more intense an individual's concern with power over things, the more will things dominate him, the more will he lack any genuine individual traits, and the more will his mind be transformed into an automation of formalized reason." Nevertheless, Horkheimer admits that objective reason has its roots in Reason ("Logos" in Greek) of the subject. He concludes, "If by enlightenment and intellectual progress we mean the freeing of man from superstitious belief in evil forces, in demons and fairies, in blind fate – in short, the emancipation from fear – then denunciation of what is currently called reason is the greatest service we can render." In 1941, Horkheimer outlined how the Nazis had been able to make their agenda appear "reasonable", but also issued a warning about the possibility of a similar occurrence happening again. Horkheimer believed that the illnesses of modern society are caused by misunderstanding reason: if people use true reason to critique their societies, they will be able to solve problems they may have. Despite the explicit common referrals to "subjective" reason in the book, his frequent connecting of it with relativism could be an indication that by "subjective reason" Horkheimer also means "relativist reason". Dialectic of Enlightenment Max Horkheimer and Theodor Adorno collaborated to publish Dialectic of Enlightenment, which was originally published in 1944. The inspiration for this piece came from when Horkheimer and Adorno had to flee Germany, because of Hitler, and go to New York. They went to America and "absorbed the popular culture"; thinking that it was a form of totalitarianism. Nonetheless, Dialectic of Enlightenment's main argument was to serve as a wide-ranging critique of the "self-destruction of enlightenment". The work criticized popular culture as "the product of a culture industry whose goal was to stupefy the masses with endless mass produced copies of the same thing" (Lemert). Along with that, Horkheimer and Adorno had a few arguments; one being that these mass-produced products only appear to change over time. Horkheimer and Adorno stated that these products were so standardized in order to help consumers comprehend and appreciate the products with little attention given to them. They expressed, "the result is a constant reproduction of the same thing" (Adorno and Horkheimer, 1993 [1944]). However, they also explain how pseudo-individuality is encouraged among these products in order to keep the consumers coming back for more. They argue that small differences in products within the same area are acceptable. The similar patterns found in the content of popular culture (films, popular songs and radio) have the same central message; "it's all linked to "the necessity of obedience of the masses to the social hierarchy in place in advanced capitalist societies". These products appeal to the masses and encourage conformity to the consumers. In return, capitalism remains in power while buyers continue to consume from the industry. This is dangerous because the consumers' belief that the powers of technology are liberating, starts to increase. To support their claim, Horkheimer and Adorno, "proposed an antidote: not just thinking the relations of things, but also, as an immediate second step, thinking through that thinking, self-reflexively." In other words, technology lacks self-reflexivity. Nonetheless, Horkheimer and Adorno believed that art was an exception, because it "is an open-ended system with no fixed rules"; thus, it could not be an object of the industry. Criticisms Perry Anderson sees Horkheimer's attempt to make the Institute purely academic as "symptomatic of a more universal process, the emergence of a 'Western Marxism' divorced from the working-class movement and dominated by academic philosophers and the 'product of defeat'" because of the isolation of the Russian Revolution. Rolf Wiggershaus, author of The Frankfurt School believed Horkheimer lacked the audacious theoretical construction produced by those like Marx and Lukács and that his main argument was that those living in misery had the right to material egoism. In his book, "Social Theory", Alex Callinicos claims that Dialectic of Enlightenment offers no systematic account of conception of rationality, but rather professes objective reason intransigently to an extent. Charles Lemert discusses in his book Social Theory that in writing Dialectic of Enlightenment, Horkheimer and Adorno lack sufficient sympathy for the cultural plight of the average working person, unfair to criticize the tastes of ordinary people, and that popular culture does not really buttress social conformity and stabilize capitalism as much as the Frankfurt school thinks. Ingar Solty, in a February 2020 Jacobin magazine article, notes that the work of Horkheimer, Adorno, and the Frankfurt School as a whole is marked by "the vast historical defeats suffered by the interwar socialist movement." He notes, "Horkheimer and Adorno thus became increasingly pessimistic with regards to the working class's ability to overthrow capitalism ... Horkheimer did not conduct empirical research on capitalism and its crises ... the hierarchical nature of the international division of labor, the organization of internationalizing capitalism in a system of nation-states, the origins of imperialism and inter-imperial rivalries, or such ... For Horkheimer, the working class had been a revolutionary subject only in the abstract ... [it] was essentially an empty placeholder for the subject which would overthrow an economic and social system which they considered wrong. If it failed to live up to its expectations, then it could easily be replaced by another subject of revolution — or the conclusion that there was no way out (of capitalism)." Solty contextualizes Horkheimer's (and, by implication, the Frankfurt School's) "return from 'revolutionary optimism' to 'revolutionary pessimism'" by noting, "[m]any postwar radical leftists and anti-capitalists, especially those not organized in real workers’ parties, were disappointed revolutionaries. The German writer Alfred Andersch, who had been close to the KPD before 1933 and then withdrawn into “inner emigration,” called the West German postwar left a “homeless left.” The working classes’ betrayals seemed to continue after 1945. After the short-lived socialist revival, the Cold War and the internationalization of the New Deal as the Keynesian welfare state seemed to have completely absorbed what was left of revolutionary working-class spirit. This led many disappointed leftists to culture and ideology as levels of analyses which could explain this failure of the working class." Solty identifies Horkheimer's (and, implicitly, the Frankfurt School's) work as an important influence on that of Michel Foucault: "Ultimately, both Horkheimer and Foucault only considered the defense of remaining elements of freedom and the identification of “micro-powers” of domination a possibility, but changes in the macro-power structures were out of reach. In other words, a Left was born that was no longer oriented toward “counter-hegemony” (as per Antonio Gramsci), as a way of building toward power, but rather “anti-hegemony” (Horkheimer, Foucault, etc.), as John Sanbonmatsu put it in his critique of postmodernism." Selected works Authority and the Family (1936) Traditional and Critical Theory (1937) Dialectic of Enlightenment (1947) – with Theodor Adorno Eclipse of Reason (1947) (orig. 1941 "The End of Reason" Studies in Philosophy and Social Sciences Vol. IX) Egoism and the Freedom Movement The Longing for the Totally Other Critique of Instrumental Reason (1967) Critical Theory: Selected Essays (1972) Dawn & Decline (1978) His collected works have been issued in German as Max Horkheimer: Gesammelte Schriften (1985–1996). 19 volumes, edited by Alfred Schmidt and Gunzelin Schmid Noerr. S. Fischer Verlag, Frankfurt am Main. Articles "The social function of philosophy", in Studies in Philosophy and Social Science, vol. 8, n°3, New-York, 1939. "The Authoritarian State". 15 (Spring 1973). New York: Telos Press. Notes Further reading Abromeit, John. Max Horkheimer and the Foundations of the Frankfurt School. Cambridge (UK): Cambridge University Press, 2011. Jay, Martin. The Dialectical Imagination: A History of the Frankfurt School and the Institute of Social Research, 1923–1950. Second edition. Berkeley: University of California Press, 1996. Schirmacher, Wolfgang. German 20th Century Philosophy: The Frankfurt School. New York: Continuum, 2000. Wiggershaus, Rolf. The Frankfurt School: Its History, Theories, and Political Significance. Boston: MIT Press, 1995. External links Max Horkheimer Internet Archive contains complete texts of Enlightenment as Mass Deception (1944), Theism and Atheism (1963) and Feudal Lord, Customer, and Specialist (1964). Blackwell Encyclopedia of Sociology Online: Max Horkheimer Stanford Encyclopedia of Philosophy: Max Horkheimer Encyclopædia Britannica: Max Horkheimer biography 1895 births 1973 deaths 20th-century American philosophers 20th-century German philosophers American anti-fascists American literary critics American male writers American Marxists American social commentators American sociologists Anti-consumerists Columbia University faculty Communication scholars Continental philosophers Critical theorists Cultural critics Epistemologists Exilliteratur writers Frankfurt School German anti-fascists German literary critics German male writers German Marxists German sociologists Goethe University Frankfurt alumni Goethe University Frankfurt faculty Jewish American writers Jewish anti-fascists Jewish emigrants from Nazi Germany to the United States Jewish philosophers Jewish socialists Jewish sociologists Ludwig Maximilian University of Munich alumni Marxist theorists Metaphysicians Ontologists Writers from Stuttgart People from the Kingdom of Württemberg Philosophers of culture Philosophers of economics Philosophers of education Philosophers of history Philosophers of mind Political philosophers Scientists from Frankfurt Social critics Social philosophers University of Freiburg alumni University of Chicago faculty

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https://en.wikipedia.org/wiki/Myanmar

Myanmar

Myanmar, officially the Republic of the Union of Myanmar (, ), also called Burma, is a country in Southeast Asia. It is the largest country in Mainland Southeast Asia, and has a population of about 54 million as of 2017. Myanmar is bordered by Bangladesh and India to its northwest, China to its northeast, Laos and Thailand to its east and southeast, and the Andaman Sea and the Bay of Bengal to its south and southwest. The country's capital city is Naypyidaw, and its largest city is Yangon (Rangoon). Early civilisations in the area included the Tibeto-Burman-speaking Pyu city-states in Upper Myanmar and the Mon kingdoms in Lower Myanmar. In the 9th century, the Bamar people entered the upper Irrawaddy valley, and following the establishment of the Pagan Kingdom in the 1050s, the Burmese language, culture, and Theravada Buddhism slowly became dominant in the country. The Pagan Kingdom fell to Mongol invasions, and several warring states emerged. In the 16th century, reunified by the Taungoo dynasty, the country became the largest empire in the history of Southeast Asia for a short period. The early 19th-century Konbaung dynasty ruled over an area that included modern Myanmar and briefly controlled Manipur and Assam as well. The British East India Company seized control of the administration of Myanmar after three Anglo-Burmese Wars in the 19th century, and the country became a British colony. After a brief Japanese occupation, Myanmar was reconquered by the Allies and gained independence in 1948. Following a coup d'état in 1962, it became a military dictatorship under the Burma Socialist Programme Party. For most of its independent years, the country has been engrossed in rampant ethnic strife and its myriad ethnic groups have been involved in one of the world's longest-running ongoing civil wars. During this time, the United Nations and several other organisations have reported consistent and systemic human rights violations in the country. In 2011, the military junta was officially dissolved following a 2010 general election, and a nominally civilian government was installed. This, along with the release of Aung San Suu Kyi and political prisoners and successful elections in 2015, had improved the country's human rights record and foreign relations and had led to the easing of trade and other economic sanctions, although the country's treatment of its ethnic minorities, particularly in connection with the Rohingya conflict, continued to be condemned by international organizations and many nations. Following the 2020 Myanmar general election, in which Aung San Suu Kyi's party won a clear majority in both houses, the Burmese military again seized power in a coup d'état. The coup, which was widely condemned, led to widespread protests in Myanmar and has been marked by a violent response by the military. The military also arrested Aung San Suu Kyi and charged her with crimes ranging from corruption to the violation of Covid protocols, all of which have been labeled "politically motivated" by independent observers. Myanmar is a member of the East Asia Summit, Non-Aligned Movement, ASEAN, and BIMSTEC, but it is not a member of the Commonwealth of Nations despite once being part of the British Empire. It is a country rich in jade and gems, oil, natural gas, and other mineral resources. Myanmar is also endowed with renewable energy; it has the highest solar power potential compared to other countries of the Great Mekong Subregion. In 2013, its GDP (nominal) stood at US$56.7 billion and its GDP (PPP) at US$221.5 billion. The income gap in Myanmar is among the widest in the world, as a large proportion of the economy is controlled by supporters of the military government. , according to the Human Development Index, Myanmar ranks 147 out of 189 countries in human development. Etymology The name of the country has been a matter of dispute and disagreement, particularly in the early 21st century, focusing mainly on the political legitimacy of those using Myanmar versus Burma. Both names derive from the earlier Burmese Mranma or Mramma, an ethnonym for the majority Burman ethnic group, of uncertain etymology. The terms are also popularly thought to derive from Brahma Desha or ब्रह्मादेश/ब्रह्मावर्त (Sanskrit) after Brahma. In 1989, the military government officially changed the English translations of many names dating back to Burma's colonial period or earlier, including that of the country itself: Burma became Myanmar. The renaming remains a contested issue. Many political and ethnic opposition groups and countries continue to use Burma because they do not recognise the legitimacy of the ruling military government or its authority to rename the country. In April 2016, soon after taking office, Aung San Suu Kyi commented on the question of which name should be used and said that "it is up to you because there is nothing in the constitution of our country that says that you must use any term in particular". She continued, "I use Burma very often because I am used to using it. But it does not mean that I require other people to do that as well. And I'll make an effort to say Myanmar from time to time so you all feel comfortable." The country's official full name is "Republic of the Union of Myanmar" (, , ). Countries that do not officially recognise that name use the long form "Union of Burma" instead. In English, the country is popularly known as either Burma or Myanmar. In Burmese, the pronunciation depends on the register used and is either () or (). The name Burma has been in use in English since the 18th century. Official United States policy retains Burma as the country's name although the State Department's website lists the country as Burma (Myanmar). The CIA's World Factbook lists the country as Burma . The government of Canada has in the past used Burma, such as in its 2007 legislation imposing sanctions but as of August 2020 generally uses Myanmar. The Czech Republic officially uses Myanmar, although its Ministry of Foreign Affairs uses both Myanmar and Burma on its website. The United Nations uses Myanmar, as do the ASEAN, Australia, Russia, Germany, China, India, Bangladesh, Norway, Japan and Switzerland. Most English-speaking international news media refer to the country by the name Myanmar, including the BBC, CNN, Al Jazeera, Reuters, and the Australian Broadcasting Corporation (ABC)/Radio Australia. Myanmar is known by a name deriving from Burma as opposed to Myanmar in Spanish, Italian, Romanian, and Greek – Birmania being the local version of Burma in both Italian and Spanish, Birmânia in Portuguese, and Birmanie in French. As in the past, French-language media today consistently use Birmanie. There is no established pronunciation of the English name Myanmar, and at least nine different pronunciations exist. Those with two syllables are listed as more common by major UK and US dictionaries except Collins: , , , . Dictionaries and other sources also report pronunciations with three syllables , , , , . Wikipedia's IPA conventions require indicating /r/ even in British English although only some British English speakers pronounce r at the end of syllables. As John Wells explains, the English spellings of both Myanmar and Burma assume a non-rhotic variety of English, in which the letter r before a consonant or finally serves merely to indicate a long vowel: [ˈmjænmɑː, ˈbɜːmə]. So the pronunciation of the last syllable of Myanmar as [mɑːr] or of Burma as [bɜːrmə] by some speakers in the UK and all in North America is in fact a spelling pronunciation based on a misunderstanding of non-rhotic spelling conventions. The final r in Myanmar was not intended for pronunciation and is there to ensure that the final a is pronounced with the broad ah () in "father". If the Burmese name were spelled "Myanma" in English, this would be pronounced at the end by all English speakers. If it were spelled "Myanmah", the end would be pronounced by all English speakers. History Prehistory Archaeological evidence shows that Homo erectus lived in the region now known as Myanmar as early as 750,000 years ago, with no more erectus finds after 75,000 years ago. The first evidence of Homo sapiens is dated to about 25,000 BP with discoveries of stone tools in central Myanmar. Evidence of Neolithic age domestication of plants and animals and the use of polished stone tools dating to sometime between 10,000 and 6,000 BCE has been discovered in the form of cave paintings in Padah-Lin Caves. The Bronze Age arrived when people in the region were turning copper into bronze, growing rice and domesticating poultry and pigs; they were among the first people in the world to do so. Human remains and artefacts from this era were discovered in Monywa District in the Sagaing Region. The Iron Age began around 500 BCE with the emergence of iron-working settlements in an area south of present-day Mandalay. Evidence also shows the presence of rice-growing settlements of large villages and small towns that traded with their surroundings as far as China between 500 BCE and 200 CE. Iron Age Burmese cultures also had influences from outside sources such as India and Thailand, as seen in their funerary practices concerning child burials. This indicates some form of communication between groups in Myanmar and other places, possibly through trade. Early city-states Around the second century BCE the first-known city-states emerged in central Myanmar. The city-states were founded as part of the southward migration by the Tibeto-Burman-speaking Pyu people, the earliest inhabitants of Myanmar of whom records are extant, from present-day Yunnan. The Pyu culture was heavily influenced by trade with India, importing Buddhism as well as other cultural, architectural and political concepts, which would have an enduring influence on later Burmese culture and political organisation. By the 9th century, several city-states had sprouted across the land: the Pyu in the central dry zone, Mon along the southern coastline and Arakanese along the western littoral. The balance was upset when the Pyu came under repeated attacks from Nanzhao between the 750s and the 830s. In the mid-to-late 9th century the Bamar people founded a small settlement at Bagan. It was one of several competing city-states until the late 10th century, when it grew in authority and grandeur. Pagan Kingdom Pagan gradually grew to absorb its surrounding states until the 1050s–1060s when Anawrahta founded the Pagan Kingdom, the first ever unification of the Irrawaddy valley and its periphery. In the 12th and 13th centuries, the Pagan Empire and the Khmer Empire were two main powers in mainland Southeast Asia. The Burmese language and culture gradually became dominant in the upper Irrawaddy valley, eclipsing the Pyu, Mon and Pali norms by the late 12th century. Theravada Buddhism slowly began to spread to the village level, although Tantric, Mahayana, Hinduism, and folk religion remained heavily entrenched. Pagan's rulers and wealthy built over 10,000 Buddhist temples in the Pagan capital zone alone. Repeated Mongol invasions in the late 13th century toppled the four-century-old kingdom in 1287. Pagan's collapse was followed by 250 years of political fragmentation that lasted well into the 16th century. Like the Burmans four centuries earlier, Shan migrants who arrived with the Mongol invasions stayed behind. Several competing Shan States came to dominate the entire northwestern to eastern arc surrounding the Irrawaddy valley. The valley too was beset with petty states until the late 14th century when two sizeable powers, Ava Kingdom and Hanthawaddy Kingdom, emerged. In the west, a politically fragmented Arakan was under competing influences of its stronger neighbours until the Kingdom of Mrauk U unified the Arakan coastline for the first time in 1437. The kingdom was a protectorate of the Bengal Sultanate at different time periods. In the 14th and 15th centuries, Ava fought wars of unification but could never quite reassemble the lost empire. Having held off Ava, the Mon-speaking Hanthawaddy entered its golden age, and Arakan went on to become a power in its own right for the next 350 years. In contrast, constant warfare left Ava greatly weakened, and it slowly disintegrated from 1481 onward. In 1527, the Confederation of Shan States conquered Ava and ruled Upper Myanmar until 1555. Like the Pagan Empire, Ava, Hanthawaddy and the Shan states were all multi-ethnic polities. Despite the wars, cultural synchronisation continued. This period is considered a golden age for Burmese culture. Burmese literature "grew more confident, popular, and stylistically diverse", and the second generation of Burmese law codes as well as the earliest pan-Burma chronicles emerged. Hanthawaddy monarchs introduced religious reforms that later spread to the rest of the country. Many splendid temples of Mrauk U were built during this period. Taungoo and Konbaung Political unification returned in the mid-16th century, through the efforts of Taungoo, a former vassal state of Ava. Taungoo's young, ambitious King Tabinshwehti defeated the more powerful Hanthawaddy in the Toungoo–Hanthawaddy War. His successor Bayinnaung went on to conquer a vast swath of mainland Southeast Asia including the Shan states, Lan Na, Manipur, Mong Mao, the Ayutthaya Kingdom, Lan Xang and southern Arakan. However, the largest empire in the history of Southeast Asia unravelled soon after Bayinnaung's death in 1581, completely collapsing by 1599. Ayutthaya seized Tenasserim and Lan Na, and Portuguese mercenaries established Portuguese rule at Thanlyin (Syriam). The dynasty regrouped and defeated the Portuguese in 1613 and Siam in 1614. It restored a smaller, more manageable kingdom, encompassing Lower Myanmar, Upper Myanmar, Shan states, Lan Na and upper Tenasserim. The restored Toungoo kings created a legal and political framework whose basic features continued well into the 19th century. The crown completely replaced the hereditary chieftainships with appointed governorships in the entire Irrawaddy valley and greatly reduced the hereditary rights of Shan chiefs. Its trade and secular administrative reforms built a prosperous economy for more than 80 years. From the 1720s onward, the kingdom was beset with repeated Meithei raids into Upper Myanmar and a nagging rebellion in Lan Na. In 1740, the Mon of Lower Myanmar founded the Restored Hanthawaddy Kingdom. Hanthawaddy forces sacked Ava in 1752, ending the 266-year-old Toungoo Dynasty. After the fall of Ava, the Konbaung–Hanthawaddy War involved one resistance group under Alaungpaya defeating the Restored Hanthawaddy, and by 1759 he had reunited all of Myanmar and Manipur and driven out the French and the British, who had provided arms to Hanthawaddy. By 1770, Alaungpaya's heirs had subdued much of Laos and fought and won the Burmese–Siamese War against Ayutthaya and the Sino-Burmese War against Qing China. With Burma preoccupied by the Chinese threat, Ayutthaya recovered its territories by 1770 and went on to capture Lan Na by 1776. Burma and Siam went to war until 1855, but all resulted in a stalemate, exchanging Tenasserim (to Burma) and Lan Na (to Ayutthaya). Faced with a powerful China and a resurgent Ayutthaya in the east, King Bodawpaya turned west, acquiring Arakan (1785), Manipur (1814) and Assam (1817). It was the second-largest empire in Burmese history but also one with a long ill-defined border with British India. The breadth of this empire was short-lived. In 1826, Burma lost Arakan, Manipur, Assam and Tenasserim to the British in the First Anglo-Burmese War. In 1852, the British easily seized Lower Burma in the Second Anglo-Burmese War. King Mindon Min tried to modernise the kingdom and in 1875 narrowly avoided annexation by ceding the Karenni States. The British, alarmed by the consolidation of French Indochina, annexed the remainder of the country in the Third Anglo-Burmese War in 1885. Konbaung kings extended Restored Toungoo's administrative reforms and achieved unprecedented levels of internal control and external expansion. For the first time in history, the Burmese language and culture came to predominate the entire Irrawaddy valley. The evolution and growth of Burmese literature and theatre continued, aided by an extremely high adult male literacy rate for the era (half of all males and 5% of females). Nonetheless, the extent and pace of reforms were uneven and ultimately proved insufficient to stem the advance of British colonialism. British Burma (1885–1948) In the 19th century, Burmese rulers, whose country had not previously been of particular interest to European traders, sought to maintain their traditional influence in the western areas of Assam, Manipur and Arakan. Pressing them, however, was the British East India Company, which was expanding its interests eastwards over the same territory. Over the next sixty years, diplomacy, raids, treaties and compromises, known collectively as the Anglo-Burmese Wars, continued until Britain proclaimed control over most of Burma. With the fall of Mandalay, all of Burma came under British rule, being annexed on 1 January 1886. Throughout the colonial era, many Indians arrived as soldiers, civil servants, construction workers and traders and, along with the Anglo-Burmese community, dominated commercial and civil life in Burma. Rangoon became the capital of British Burma and an important port between Calcutta and Singapore. Burmese resentment was strong, and was vented in violent riots that paralysed Rangoon on occasion until the 1930s. Some of the discontent was caused by a disrespect for Burmese culture and traditions such as the British refusal to remove shoes when they entered pagodas. Buddhist monks became the vanguards of the independence movement. U Wisara, an activist monk, died in prison after a 166-day hunger strike to protest against a rule that forbade him to wear his Buddhist robes while imprisoned. On 1 April 1937, Burma became a separately administered colony of Great Britain, and Ba Maw became the first Prime Minister and Premier of Burma. Ba Maw was an outspoken advocate for Burmese self-rule, and he opposed the participation of Great Britain, and by extension Burma, in World War II. He resigned from the Legislative Assembly and was arrested for sedition. In 1940, before Japan formally entered the war, Aung San formed the Burma Independence Army in Japan. As a major battleground, Burma was devastated during World War II by the Japanese invasion. Within months after they entered the war, Japanese troops had advanced on Rangoon, and the British administration had collapsed. A Burmese Executive Administration headed by Ba Maw was established by the Japanese in August 1942. Wingate's British Chindits were formed into long-range penetration groups trained to operate deep behind Japanese lines. A similar American unit, Merrill's Marauders, followed the Chindits into the Burmese jungle in 1943. Beginning in late 1944, allied troops launched a series of offensives that led to the end of Japanese rule in July 1945. The battles were intense with much of Burma laid waste by the fighting. Overall, the Japanese lost some 150,000 men in Burma with 1,700 prisoners taken. Although many Burmese fought initially for the Japanese as part of the Burma Independence Army, many Burmese, mostly from the ethnic minorities, served in the British Burma Army. The Burma National Army and the Arakan National Army fought with the Japanese from 1942 to 1944 but switched allegiance to the Allied side in 1945. Overall, 170,000 to 250,000 Burmese civilians died during World War II. Following World War II, Aung San negotiated the Panglong Agreement with ethnic leaders that guaranteed the independence of Myanmar as a unified state. Aung Zan Wai, Pe Khin, Bo Hmu Aung, Sir Maung Gyi, Dr. Sein Mya Maung, Myoma U Than Kywe were among the negotiators of the historic Panglong Conference negotiated with Bamar leader General Aung San and other ethnic leaders in 1947. In 1947, Aung San became Deputy Chairman of the Executive Council of Myanmar, a transitional government. But in July 1947, political rivals assassinated Aung San and several cabinet members. Independence (1948–1962) On 4 January 1948, the nation became an independent republic, under the terms of the Burma Independence Act 1947. The new country was named the Union of Burma, with Sao Shwe Thaik as its first president and U Nu as its first prime minister. Unlike most other former British colonies and overseas territories, Burma did not become a member of the Commonwealth. A bicameral parliament was formed, consisting of a Chamber of Deputies and a Chamber of Nationalities, and multi-party elections were held in 1951–1952, 1956 and 1960. The geographical area Burma encompasses today can be traced to the Panglong Agreement, which combined Burma Proper, which consisted of Lower Burma and Upper Burma, and the Frontier Areas, which had been administered separately by the British. In 1961, U Thant, the Union of Burma's Permanent Representative to the United Nations and former secretary to the prime minister, was elected Secretary-General of the United Nations, a position he held for ten years. Among the Burmese to work at the UN when he was secretary-general was Aung San Suu Kyi (daughter of Aung San), who went on to become winner of the 1991 Nobel Peace Prize. When the non-Burman ethnic groups pushed for autonomy or federalism, alongside having a weak civilian government at the centre, the military leadership staged a coup d'état in 1962. Though incorporated in the 1947 Constitution, successive military governments construed the use of the term 'federalism' as being anti-national, anti-unity and pro-disintegration. Military rule (1962–2011) On 2 March 1962, the military led by General Ne Win took control of Burma through a coup d'état, and the government had been under direct or indirect control by the military since then. Between 1962 and 1974, Myanmar was ruled by a revolutionary council headed by the general. Almost all aspects of society (business, media, production) were nationalised or brought under government control under the Burmese Way to Socialism, which combined Soviet-style nationalisation and central planning. A new constitution of the Socialist Republic of the Union of Burma was adopted in 1974. Until 1988, the country was ruled as a one-party system, with the general and other military officers resigning and ruling through the Burma Socialist Programme Party (BSPP). During this period, Myanmar became one of the world's most impoverished countries. There were sporadic protests against military rule during the Ne Win years, and these were almost always violently suppressed. On 7 July 1962, the government broke up demonstrations at Rangoon University, killing 15 students. In 1974, the military violently suppressed anti-government protests at the funeral of U Thant. Student protests in 1975, 1976, and 1977 were quickly suppressed by overwhelming force. In 1988, unrest over economic mismanagement and political oppression by the government led to widespread pro-democracy demonstrations throughout the country known as the 8888 Uprising. Security forces killed thousands of demonstrators, and General Saw Maung staged a coup d'état and formed the State Law and Order Restoration Council (SLORC). In 1989, SLORC declared martial law after widespread protests. The military government finalised plans for People's Assembly elections on 31 May 1989. SLORC changed the country's official English name from the "Socialist Republic of the Union of Burma" to the "Union of Myanmar" on 18 June 1989 by enacting the adaptation of the expression law. In May 1990, the government held free multiparty elections for the first time in almost 30 years, and the National League for Democracy (NLD), the party of Aung San Suu Kyi, won earning 392 out of a total 492 seats (i.e., 80% of the seats). However, the military junta refused to cede power and continued to rule the nation, first as SLORC and, from 1997, as the State Peace and Development Council (SPDC) until its dissolution in March 2011. General Than Shwe took over the Chairmanship – effectively the position of Myanmar's top ruler – from General Saw Maung in 1992 and held it until 2011. On 23 June 1997, Myanmar was admitted into the Association of Southeast Asian Nations. On 27 March 2006, the military junta, which had moved the national capital from Yangon to a site near Pyinmana in November 2005, officially named the new capital Naypyidaw, meaning "city of the kings". In August 2007, an increase in the price of fuel led to the Saffron Revolution led by Buddhist monks that were dealt with harshly by the government. The government cracked down on them on 26 September 2007, with reports of barricades at the Shwedagon Pagoda and monks killed. There were also rumours of disagreement within the Burmese armed forces, but none was confirmed. The military crackdown against unarmed protesters was widely condemned as part of the international reactions to the Saffron Revolution and led to an increase in economic sanctions against the Burmese Government. In May 2008, Cyclone Nargis caused extensive damage in the densely populated rice-farming delta of the Irrawaddy Division. It was the worst natural disaster in Burmese history with reports of an estimated 200,000 people dead or missing, damages totalled to 10 billion US dollars, and as many as 1 million were left homeless. In the critical days following this disaster, Myanmar's isolationist government was accused of hindering United Nations recovery efforts. Humanitarian aid was requested, but concerns about foreign military or intelligence presence in the country delayed the entry of United States military planes delivering medicine, food, and other supplies. In early August 2009, a conflict broke out in Shan State in northern Myanmar. For several weeks, junta troops fought against ethnic minorities including the Han Chinese, Wa, and Kachin. During 8–12 August, the first days of the conflict, as many as 10,000 Burmese civilians fled to Yunnan in neighbouring China. Civil wars Civil wars have been a constant feature of Myanmar's socio-political landscape since the attainment of independence in 1948. These wars are predominantly struggles for ethnic and sub-national autonomy, with the areas surrounding the ethnically Bamar central districts of the country serving as the primary geographical setting of conflict. Foreign journalists and visitors require a special travel permit to visit the areas in which Myanmar's civil wars continue. In October 2012, the ongoing conflicts in Myanmar included the Kachin conflict, between the Pro-Christian Kachin Independence Army and the government; a civil war between the Rohingya Muslims and the government and non-government groups in Rakhine State; and a conflict between the Shan, Lahu, and Karen minority groups, and the government in the eastern half of the country. In addition, al-Qaeda signalled an intention to become involved in Myanmar. In a video released on 3 September 2014, mainly addressed to India, the militant group's leader Ayman al-Zawahiri said al-Qaeda had not forgotten the Muslims of Myanmar and that the group was doing "what they can to rescue you". In response, the military raised its level of alertness, while the Burmese Muslim Association issued a statement saying Muslims would not tolerate any threat to their motherland. Armed conflict between ethnic Chinese rebels and the Myanmar Armed Forces resulted in the Kokang offensive in February 2015. The conflict had forced 40,000 to 50,000 civilians to flee their homes and seek shelter on the Chinese side of the border. During the incident, the government of China was accused of giving military assistance to the ethnic Chinese rebels. Burmese officials have been historically "manipulated" and pressured by the Chinese government throughout Burmese modern history to create closer and binding ties with China, creating a Chinese satellite state in Southeast Asia. However, uncertainties exist as clashes between Burmese troops and local insurgent groups continue. Period of liberalisation, 2011–2021 The military-backed Government had promulgated a "Roadmap to Discipline-flourishing Democracy" in 1993, but the process appeared to stall several times, until 2008 when the Government published a new draft national constitution, and organised a (flawed) national referendum which adopted it. The new constitution provided for election of a national assembly with powers to appoint a president, while practically ensuring army control at all levels. A general election in 2010 - the first for twenty years - was boycotted by the NLD. The military-backed Union Solidarity and Development Party declared victory, stating that it had been favoured by 80 per cent of the votes; fraud, however, was alleged. A nominally civilian government was then formed, with retired general Thein Sein as President. A series of liberalising political and economic actions – or reforms – then took place. By the end of 2011 these included the release of pro-democracy leader Aung San Suu Kyi from house arrest, the establishment of the National Human Rights Commission, the granting of general amnesties for more than 200 political prisoners, new labour laws that permitted labour unions and strikes, a relaxation of press censorship, and the regulation of currency practices. In response, United States Secretary of State Hillary Clinton visited Myanmar in December 2011 – the first visit by a US Secretary of State in more than fifty years – meeting both President Thein Sein and opposition leader Aung San Suu Kyi. Aung San Suu Kyi's NLD party participated in the 2012 by-elections, facilitated by the government's abolition of the laws that previously barred it. In the April 2012 by-elections, the NLD won 43 of the 45 available seats. The 2012 by-elections were also the first time that international representatives were allowed to monitor the voting process in Myanmar. Myanmar's improved international reputation was indicated by ASEAN's approval of Myanmar's bid for the position of ASEAN chair in 2014. 2015 general elections General elections were held on 8 November 2015. These were the first openly contested elections held in Myanmar since the 1990 general election (which was annulled). The results gave the NLD an absolute majority of seats in both chambers of the national parliament, enough to ensure that its candidate would become president, while NLD leader Aung San Suu Kyi is constitutionally barred from the presidency. The new parliament convened on 1 February 2016, and on 15 March 2016, Htin Kyaw was elected as the first non-military president since the military coup of 1962. On 6 April 2016, Aung San Suu Kyi assumed the newly created role of state counsellor, a role akin to a prime minister. Analysis of liberalisation period Throughout this decade of apparent liberalisation, opinions differed whether a transition to liberal democracy was underway. To some it appeared merely that the Burmese military was allowing certain civil liberties while clandestinely institutionalising itself further into Burmese politics and economy. 2020 elections and 2021 military coup d'état Election and aftermath In Myanmar's 2020 parliamentary election, the ostensibly ruling National League for Democracy (NLD), the party of State Counsellor Aung San Suu Kyi, competed with various other smaller parties – particularly the military-affiliated Union Solidarity and Development Party (USDP). Other parties and individuals allied with specific ethnic minorities also ran for office. Suu Kyi's NLD won the 2020 Myanmar general election on 8 November in a landslide, again winning supermajorities in both houses—winning 396 out of 476 elected seats in parliament. The USDP, regarded as a proxy for the military, suffered a "humiliating" defeat – even worse than in 2015 – capturing only 33 of the 476 elected seats. As the election results began emerging, the USDP rejected them, urging a new election with the military as observers. More than 90 other, smaller parties contested the vote, including more than 15 who complained of irregularities. However, election observers declared there were no major irregularities in the voting. The military – arguing that it had found over 8 million irregularities in voter lists, in over 300 townships – called on Myanmar's Union Election Commission (UEC) and government to review the results, but the commission dismissed the claims for lack of any evidence. The election commission declared that any irregularities were too few and too minor to affect the outcome of the election. However, despite the election commission validating the NLD's overwhelming victory, the USDP and Myanmar's military persistently alleged fraud and the military threatened to "take action". In January, 2021, just before the new parliament was to be sworn in, The NLD announced that Suu Kyi would retain her State Counsellor role in the upcoming government. Coup In the early morning of 1 February 2021, the day parliament was set to convene, the Tatmadaw, Myanmar's military, detained State Counsellor Aung San Suu Kyi and other members of the ruling party. The military handed power to military chief Min Aung Hlaing and declared a state of emergency for one year and began closing the borders, restricting travel and electronic communications nationwide. The military announced it would replace the existing election commission with a new one, and a military media outlet indicated new elections would be held in about one year – though the military avoided making an official commitment to that. State Counselor Aung San Suu Kyi and President Win Myint were placed under house arrest, and the military began filing various charges against them. The military expelled NLD party Members of Parliament from the capital city, Naypyitaw. By 15 March 2021 the military leadership continued to extend martial law into more parts of Yangon, while security forces killed 38 people in a single day of violence. Reaction By the second day of the coup, thousands of protesters were marching in the streets of the nation's largest city, and commercial capital, Yangon, and other protests erupted nationwide, largely halting commerce and transportation. Despite the military's arrests and killings of protesters, the first weeks of the coup found growing public participation, including groups of civil servants, teachers, students, workers, monks and religious leaders – even normally disaffected ethnic minorities. The coup was immediately condemned by the United Nations Secretary General, and leaders of democratic nations – including the United States President Joe Biden, western European political leaders, Southeast Asian democracies, and others around the world, who demanded or urged release of the captive leaders, and an immediate return to democratic rule in Myanmar. The U.S. threatened sanctions on the military and its leaders, including a "freeze" of US$1 billion of their assets in the U.S. India, Pakistan, Bangladesh, Russia, Vietnam, Thailand, the Philippines and China refrained from criticizing the military coup. The representatives of Russia and China had conferred with the Tatmadaw leader Gen. Hlaing just days before the coup Their possible complicity angered civilian protesters in Myanmar. However, both of those nations refrained from blocking a United Nations Security Council resolution calling for the release of Aung San Suu Kyi and the other detained leaders – a position shared by the United Nations High Commissioner for Human Rights. International development and aid partners – business, non-governmental, and governmental – hinted at suspension of partnerships with Myanmar. Banks closed. Social media communications platforms, including Facebook and Twitter, removed Tatmadaw postings. Protesters appeared at Myanmar embassies in foreign countries. Geography Myanmar has a total area of . It lies between latitudes 9° and 29°N, and longitudes 92° and 102°E. Myanmar is bordered in the northwest by the Chittagong Division of Bangladesh and the Mizoram, Manipur, Nagaland and Arunachal Pradesh states of India. Its north and northeast border is with the Tibet Autonomous Region and Yunnan for a Sino-Myanmar border total of . It is bounded by Laos and Thailand to the southeast. Myanmar has of contiguous coastline along the Bay of Bengal and Andaman Sea to the southwest and the south, which forms one quarter of its total perimeter. In the north, the Hengduan Mountains form the border with China. Hkakabo Razi, located in Kachin State, at an elevation of , is the highest point in Myanmar. Many mountain ranges, such as the Rakhine Yoma, the Bago Yoma, the Shan Hills and the Tenasserim Hills exist within Myanmar, all of which run north-to-south from the Himalayas. The mountain chains divide Myanmar's three river systems, which are the Irrawaddy, Salween (Thanlwin), and the Sittaung rivers. The Irrawaddy River, Myanmar's longest river at nearly , flows into the Gulf of Martaban. Fertile plains exist in the valleys between the mountain chains. The majority of Myanmar's population lives in the Irrawaddy valley, which is situated between the Rakhine Yoma and the Shan Plateau. Administrative divisions Myanmar is divided into seven states () and seven regions (), formerly called divisions. Regions are predominantly Bamar (that is, mainly inhabited by Myanmar's dominant ethnic group). States, in essence, are regions that are home to particular ethnic minorities. The administrative divisions are further subdivided into districts, which are further subdivided into townships, wards, and villages. Below are the number of districts, townships, cities/towns, wards, village groups and villages in each division and state of Myanmar as of 31 December 2001: Climate Much of the country lies between the Tropic of Cancer and the Equator. It lies in the monsoon region of Asia, with its coastal regions receiving over of rain annually. Annual rainfall in the delta region is approximately , while average annual rainfall in the dry zone in central Myanmar is less than . The northern regions of Myanmar are the coolest, with average temperatures of . Coastal and delta regions have an average maximum temperature of . Biodiversity Myanmar is a biodiverse country with more than 16,000 plant, 314 mammal, 1131 bird, 293 reptile, and 139 amphibian species, and 64 terrestrial ecosystems including tropical and subtropical vegetation, seasonally inundated wetlands, shoreline and tidal systems, and alpine ecosystems. Myanmar houses some of the largest intact natural ecosystems in Southeast Asia, but the remaining ecosystems are under threat from land use intensification and over-exploitation. According to the IUCN Red List of Ecosystems categories and criteria more than a third of Myanmar's land area has been converted to anthropogenic ecosystems over the last 2–3 centuries, and nearly half of its ecosystems are threatened. Despite large gaps in information for some ecosystems, there is a large potential to develop a comprehensive protected area network that protects its terrestrial biodiversity. Myanmar continues to perform badly in the global Environmental Performance Index (EPI) with an overall ranking of 153 out of 180 countries in 2016; among the worst in the South Asian region, only ahead of Bangladesh and Afghanistan. The EPI was established in 2001 by the World Economic Forum as a global gauge to measure how well individual countries perform in implementing the United Nations' Sustainable Development Goals. The environmental areas where Myanmar performs worst (i.e. highest ranking) are air quality (174), health impacts of environmental issues (143) and biodiversity and habitat (142). Myanmar performs best (i.e. lowest ranking) in environmental impacts of fisheries (21) but with declining fish stocks. Despite several issues, Myanmar also ranks 64 and scores very good (i.e. a high percentage of 93.73%) in environmental effects of the agricultural industry because of an excellent management of the nitrogen cycle. Myanmar is one of the most highly vulnerable countries to climate change; this poses a number of social, political, economic and foreign policy challenges to the country. The country had a 2019 Forest Landscape Integrity Index mean score of 7.18/10, ranking it 49th globally out of 172 countries. Myanmar's slow economic growth has contributed to the preservation of much of its environment and ecosystems. Forests, including dense tropical growth and valuable teak in lower Myanmar, cover over 49% of the country, including areas of acacia, bamboo, ironwood and Magnolia champaca. Coconut and betel palm and rubber have been introduced. In the highlands of the north, oak, pine and various rhododendrons cover much of the land. Heavy logging since the new 1995 forestry law went into effect has seriously reduced forest area and wildlife habitat. The lands along the coast support all varieties of tropical fruits and once had large areas of mangroves although much of the protective mangroves have disappeared. In much of central Myanmar (the dry zone), vegetation is sparse and stunted. Typical jungle animals, particularly tigers, occur sparsely in Myanmar. In upper Myanmar, there are rhinoceros, wild water buffalo, clouded leopard, wild boars, deer, antelope, and elephants, which are also tamed or bred in captivity for use as work animals, particularly in the lumber industry. Smaller mammals are also numerous, ranging from gibbons and monkeys to flying foxes. The abundance of birds is notable with over 800 species, including parrots, myna, peafowl, red junglefowl, weaverbirds, crows, herons, and barn owl. Among reptile species there are crocodiles, geckos, cobras, Burmese pythons, and turtles. Hundreds of species of freshwater fish are wide-ranging, plentiful and are very important food sources. Climate change Previously and currently analysed data, as well as future projections on changes caused by climate change predict serious consequences to development for all economic, productive, social, and environmental sectors in Myanmar. In order to combat the hardships ahead and do its part to help combat climate change Myanmar has displayed interest in expanding its use of renewable energy and lowering its level of carbon emissions. Groups involved in helping Myanmar with the transition and move forward include the UN Environment Programme, Myanmar Climate Change Alliance, and the Ministry of Natural Resources and Environmental Conservation which directed in producing the final draft of the Myanmar national climate change policy that was presented to various sectors of the Myanmar government for review. In April 2015, it was announced that the World Bank and Myanmar would enter a full partnership framework aimed to better access to electricity and other basic services for about six million people and expected to benefit three million pregnant woman and children through improved health services. Acquired funding and proper planning has allowed Myanmar to better prepare for the impacts of climate change by enacting programs which teach its people new farming methods, rebuild its infrastructure with materials resilient to natural disasters, and transition various sectors towards reducing greenhouse gas emissions. Government and politics Myanmar operates de jure as a unitary assembly-independent republic under its 2008 constitution. But in February 2021, the civilian government led by Aung San Suu Kyi, was deposed by the Tatmadaw. In February 2021, Myanmar military declared a one-year state emergency and First Vice President Myint Swe became the Acting President of Myanmar and handed the power to the Commander-in-Chief of Defence Services Min Aung Hlaing and he assumed the role Chairman of the State Administration Council, then Prime Minister. The President of Myanmar acts as the de jure head of state and the Chairman of the State Administration Council acts as the de facto head of government. The constitution of Myanmar, its third since independence, was drafted by its military rulers and published in September 2008. The country is governed as a parliamentary system with a bicameral legislature (with an executive president accountable to the legislature), with 25% of the legislators appointed by the military and the rest elected in general elections. The legislature, called the Assembly of the Union, is bicameral and made up of two houses: the 224-seat upper House of Nationalities and the 440-seat lower House of Representatives. The upper house consists 168 members who are directly elected and 56 who are appointed by the Burmese Armed Forces. The lower house consists of 330 members who are directly elected and 110 who are appointed by the armed forces. Political culture The major political parties are the National League for Democracy and the Union Solidarity and Development Party. Myanmar's army-drafted constitution was approved in a referendum in May 2008. The results, 92.4% of the 22 million voters with an official turnout of 99%, are considered suspect by many international observers and by the National League of Democracy with reports of widespread fraud, ballot stuffing, and voter intimidation. The elections of 2010 resulted in a victory for the military-backed Union Solidarity and Development Party. Various foreign observers questioned the fairness of the elections. One criticism of the election was that only government-sanctioned political parties were allowed to contest in it and the popular National League for Democracy was declared illegal. However, immediately following the elections, the government ended the house arrest of the democracy advocate and leader of the National League for Democracy, Aung San Suu Kyi, and her ability to move freely around the country is considered an important test of the military's movement toward more openness. After unexpected reforms in 2011, NLD senior leaders have decided to register as a political party and to field candidates in future by-elections. Myanmar's political history is underlined by its struggle to establish democratic structures amidst conflicting factions. This political transition from a closely held military rule to a free democratic system is widely believed to be determining the future of Myanmar. The resounding victory of Aung San Suu Kyi's National League for Democracy in the 2015 general election raised hope for a successful culmination of this transition. Myanmar rates as a corrupt nation on the Corruption Perceptions Index with a rank of 130th out of 180 countries worldwide, with 1st being least corrupt, . Foreign relations Though the country's foreign relations, particularly with Western nations, have historically been strained, the situation has markedly improved since the reforms following the 2010 elections. After years of diplomatic isolation and economic and military sanctions, the United States relaxed curbs on foreign aid to Myanmar in November 2011 and announced the resumption of diplomatic relations on 13 January 2012 The European Union has placed sanctions on Myanmar, including an arms embargo, cessation of trade preferences, and suspension of all aid with the exception of humanitarian aid. Sanctions imposed by the United States and European countries against the former military government, coupled with boycotts and other direct pressure on corporations by supporters of the democracy movement, have resulted in the withdrawal from the country of most U.S. and many European companies. On 13 April 2012, British Prime Minister David Cameron called for the economic sanctions on Myanmar to be suspended in the wake of the pro-democracy party gaining 43 seats out of a possible 45 in the 2012 by-elections with the party leader, Aung San Suu Kyi becoming a member of the Burmese parliament. Despite Western isolation, Asian corporations have generally remained willing to continue investing in the country and to initiate new investments, particularly in natural resource extraction. The country has close relations with neighbouring India and China with several Indian and Chinese companies operating in the country. Under India's Look East policy, fields of co-operation between India and Myanmar include remote sensing, oil and gas exploration, information technology, hydropower and construction of ports and buildings. In 2008, India suspended military aid to Myanmar over the issue of human rights abuses by the ruling junta, although it has preserved extensive commercial ties, which provide the regime with much-needed revenue. The thaw in relations began on 28 November 2011, when Belarusian Prime Minister Mikhail Myasnikovich and his wife Ludmila arrived in the capital, Naypyidaw, the same day as the country received a visit by U.S. Secretary of State Hillary Clinton, who also met with pro-democracy opposition leader Aung San Suu Kyi. International relations progress indicators continued in September 2012 when Aung San Suu Kyi visited the United States followed by Myanmar's reformist president visit to the United Nations. In May 2013, Thein Sein became the first Myanmar president to visit the White House in 47 years; the last Burmese leader to visit the White House was Ne Win in September 1966. President Barack Obama praised the former general for political and economic reforms and the cessation of tensions between Myanmar and the United States. Political activists objected to the visit because of concerns over human rights abuses in Myanmar, but Obama assured Thein Sein that Myanmar will receive U.S. support. The two leaders discussed the release of more political prisoners, the institutionalisation of political reform and the rule of law, and ending ethnic conflict in Myanmar—the two governments agreed to sign a bilateral trade and investment framework agreement on 21 May 2013. In June 2013, Myanmar held its first ever summit, the World Economic Forum on East Asia 2013. A regional spinoff of the annual World Economic Forum in Davos, Switzerland, the summit was held on 5–7 June and attended by 1,200 participants, including 10 heads of state, 12 ministers and 40 senior directors from around the world. In July 2019, UN ambassadors of 37 countries, including Myanmar, have signed a joint letter to the United Nations Human Rights Council defending China's treatment of Uyghurs and other Muslim minority groups in the Xinjiang region. Military Myanmar has received extensive military aid from China in the past. Myanmar has been a member of ASEAN since 1997. Though it gave up its turn to hold the ASEAN chair and host the ASEAN Summit in 2006, it chaired the forum and hosted the summit in 2014. In November 2008, Myanmar's political situation with neighbouring Bangladesh became tense as they began searching for natural gas in a disputed block of the Bay of Bengal. Controversy surrounding the Rohingya population also remains an issue between Bangladesh and Myanmar. Myanmar's armed forces are known as the Tatmadaw, which numbers 488,000. The Tatmadaw comprises the Army, the Navy, and the Air Force. The country ranked twelfth in the world for its number of active troops in service. The military is very influential in Myanmar, with all top cabinet and ministry posts usually held by military officials. Official figures for military spending are not available. Estimates vary widely because of uncertain exchange rates, but Myanmar's military forces' expenses are high. Myanmar imports most of its weapons from Russia, Ukraine, China and India. Myanmar is building a research nuclear reactor near Pyin Oo Lwin with help from Russia. It is one of the signatories of the nuclear non-proliferation pact since 1992 and a member of the International Atomic Energy Agency (IAEA) since 1957. The military junta had informed the IAEA in September 2000 of its intention to construct the reactor. In 2010 as part of the Wikileaks leaked cables, Myanmar was suspected of using North Korean construction teams to build a fortified surface-to-air missile facility. As of 2019, the United States Bureau of Arms Control assessed that Myanmar is not in violation of its obligations under the Non-Proliferation Treaty but that the Myanmar government had a history of non-transparency on its nuclear programs and aims. Until 2005, the United Nations General Assembly annually adopted a detailed resolution about the situation in Myanmar by consensus. But in 2006 a divided United Nations General Assembly voted through a resolution that strongly called upon the government of Myanmar to end its systematic violations of human rights. In January 2007, Russia and China vetoed a draft resolution before the United Nations Security Council calling on the government of Myanmar to respect human rights and begin a democratic transition. South Africa also voted against the resolution. Human rights and internal conflicts There is consensus that the former military regime in Myanmar (1962–2010) was one of the world's most repressive and abusive regimes. In November 2012, Samantha Power, Barack Obama's Special Assistant to the President on Human Rights, wrote on the White House blog in advance of the president's visit that "Serious human rights abuses against civilians in several regions continue, including against women and children." Members of the United Nations and major international human rights organisations have issued repeated and consistent reports of widespread and systematic human rights violations in Myanmar. The United Nations General Assembly has repeatedly called on the Burmese military junta to respect human rights and in November 2009 the General Assembly adopted a resolution "strongly condemning the ongoing systematic violations of human rights and fundamental freedoms" and calling on the Burmese military regime "to take urgent measures to put an end to violations of international human rights and humanitarian law." International human rights organisations including Human Rights Watch, Amnesty International and the American Association for the Advancement of Science have repeatedly documented and condemned widespread human rights violations in Myanmar. The Freedom in the World 2011 report by Freedom House notes, "The military junta has ... suppressed nearly all basic rights; and committed human rights abuses with impunity." In July 2013, the Assistance Association for Political Prisoners indicated that there were approximately 100 political prisoners being held in Burmese prisons. Evidence gathered by a British researcher was published in 2005 regarding the extermination or "Burmisation" of certain ethnic minorities, such as the Karen, Karenni and Shan. Based on the evidence gathered by Amnesty photographs and video of the ongoing armed conflict between the Myanmar military and the Arakan Army (AA), attacks escalated on civilians in Rakhine State. Ming Yu Hah, Amnesty International's Deputy Regional Director for Campaigns said, the UN Security Council must urgently refer the situation in Myanmar to the International Criminal Court. Child soldiers Child soldiers had played a major part in the Burmese Army until around 2012. The Independent reported in June 2012 that "Children are being sold as conscripts into the Burmese military for as little as $40 and a bag of rice or a can of petrol." The UN's Special Representative of the Secretary-General for Children and Armed Conflict, Radhika Coomaraswamy, who stepped down from her position a week later, met representatives of the government of Myanmar in July 2012 and stated that she hoped the government's signing of an action plan would "signal a transformation." In September 2012, the Myanmar Armed Forces released 42 child soldiers, and the International Labour Organization met with representatives of the government as well as the Kachin Independence Army to secure the release of more child soldiers. According to Samantha Power, a U.S. delegation raised the issue of child soldiers with the government in October 2012. However, she did not comment on the government's progress towards reform in this area. Slavery and human trafficking Forced labour, human trafficking, and child labour are common in Myanmar. The military is also notorious for rampant use of sexual violence. In 2007 the international movement to defend women's human rights issues in Myanmar was said to be gaining speed. Human trafficking happens mostly to women who are unemployed and have low incomes. They are mainly targeted or deceived by brokers into making them believe that better opportunities and wages exist for them abroad. In 2017, the government reported investigating 185 trafficking cases. The government of Burma makes little effort to eliminate human trafficking. Burmese armed forces compel troops to acquire labour and supplies from local communities. The U.S. State Department reported that both the government and Tatmadaw were complicit in sex and labour trafficking. Women and girls from all ethnic groups and foreigners have been victims of sex trafficking in Myanmar. They are forced into prostitution, marriages, and or pregnancies. Genocide allegations and crimes against Rohingya people The Rohingya people have consistently faced human rights abuses by the Burmese regime that has refused to acknowledge them as Burmese citizens (despite some of them having lived in Burma for over three generations)—the Rohingya have been denied Burmese citizenship since the enactment of a 1982 citizenship law. The law created three categories of citizenship: citizenship, associate citizenship, and naturalised citizenship. Citizenship is given to those who belong to one of the national races such as Kachin, Kayah (Karenni), Karen, Chin, Burman, Mon, Rakhine, Shan, Kaman, or Zerbadee. Associate citizenship is given to those who cannot prove their ancestors settled in Myanmar before 1823 but can prove they have one grandparent, or pre-1823 ancestor, who was a citizen of another country, as well as people who applied for citizenship in 1948 and qualified then by those laws. Naturalised citizenship is only given to those who have at least one parent with one of these types of Burmese citizenship or can provide "conclusive evidence" that their parents entered and resided in Burma prior to independence in 1948. The Burmese regime has attempted to forcibly expel Rohingya and bring in non-Rohingyas to replace them—this policy has resulted in the expulsion of approximately half of the 800,000 Rohingya from Burma, while the Rohingya people have been described as "among the world's least wanted" and "one of the world's most persecuted minorities." But the origin of the "most persecuted minority" statement is unclear. Rohingya are not allowed to travel without official permission, are banned from owning land, and are required to sign a commitment to have no more than two children. As of July 2012, the Myanmar government does not include the Rohingya minority group—classified as stateless Bengali Muslims from Bangladesh since 1982—on the government's list of more than 130 ethnic races and, therefore, the government states that they have no claim to Myanmar citizenship. In 2007 German professor Bassam Tibi suggested that the Rohingya conflict may be driven by an Islamist political agenda to impose religious laws, while non-religious causes have also been raised, such as a lingering resentment over the violence that occurred during the Japanese occupation of Burma in World War II—during this time period the British allied themselves with the Rohingya and fought against the puppet government of Burma (composed mostly of Bamar Japanese) that helped to establish the Tatmadaw military organisation that remains in power except for a 5-year lapse in 2016 - 2021. Since the democratic transition began in 2011, there has been continuous violence as 280 people have been killed and 140,000 forced to flee from their homes in the Rakhine state in 2014. A UN envoy reported in March 2013 that unrest had re-emerged between Myanmar's Buddhist and Muslim communities, with violence spreading to towns that are located closer to Yangon. Government reforms According to the Crisis Group, since Myanmar transitioned to a new government in August 2011, the country's human rights record has been improving. Previously giving Myanmar its lowest rating of 7, the 2012 Freedom in the World report also notes improvement, giving Myanmar a 6 for improvements in civil liberties and political rights, the release of political prisoners, and a loosening of restrictions. In 2013, Myanmar improved yet again, receiving a score of 5 in civil liberties and 6 in political freedoms. The government has assembled a National Human Rights Commission that consists of 15 members from various backgrounds. Several activists in exile, including Thee Lay Thee Anyeint members, have returned to Myanmar after President Thein Sein's invitation to expatriates to return home to work for national development. In an address to the United Nations Security Council on 22 September 2011, Myanmar's Foreign Minister Wunna Maung Lwin confirmed the government's intention to release prisoners in the near future. The government has also relaxed reporting laws, but these remain highly restrictive. In September 2011, several banned websites, including YouTube, Democratic Voice of Burma and Voice of America, were unblocked. A 2011 report by the Hauser Center for Nonprofit Organizations found that, while contact with the Myanmar government was constrained by donor restrictions, international humanitarian non-governmental organisations (NGOs) see opportunities for effective advocacy with government officials, especially at the local level. At the same time, international NGOs are mindful of the ethical quandary of how to work with the government without bolstering or appeasing it. Following Thein Sein's first ever visit to the UK and a meeting with Prime Minister David Cameron, the Myanmar president declared that all of his nation's political prisoners will be released by the end of 2013, in addition to a statement of support for the well-being of the Rohingya Muslim community. In a speech at Chatham House, he revealed that "We [Myanmar government] are reviewing all cases. I guarantee to you that by the end of this year, there will be no prisoners of conscience in Myanmar.", in addition to expressing a desire to strengthen links between the UK and Myanmar's military forces. Homosexual acts are illegal in Myanmar and can be punishable by life imprisonment. In 2016, Myanmar leader Aung San Suu Kyi was accused of failing to protect Myanmar's Muslim minority. Since August 2017 Doctors Without Borders have treated 113 Rohingya refugee females for sexual assault with all but one describing military assailants. Economy Myanmar's economy is one of the fastest growing economies in the world with a nominal GDP of US$76.09 billion in 2019 and an estimated purchasing power adjusted GDP of US$327.629 billion in 2017 according to the World Bank. Foreigners are able to legally lease but not own property. In December 2014, Myanmar set up its first stock exchange, the Yangon Stock Exchange. The informal economy's share in Myanmar is one of the biggest in the world and is closely linked to corruption, smuggling and illegal trade activities. In addition, decades of civil war and unrest have contributed to Myanmar's current levels of poverty and lack of economic progress. Myanmar lacks adequate infrastructure. Goods travel primarily across the Thai border (where most illegal drugs are exported) and along the Irrawaddy River. Both China and India have attempted to strengthen ties with the government for economic benefit in the early 2010s. Many Western nations, including the United States and Canada, and the European Union, historically imposed investment and trade sanctions on Myanmar. The United States and European Union eased most of their sanctions in 2012. From May 2012 to February 2013, the United States began to lift its economic sanctions on Myanmar "in response to the historic reforms that have been taking place in that country." Foreign investment comes primarily from China, Singapore, the Philippines, South Korea, India, and Thailand. The military has stakes in some major industrial corporations of the country (from oil production and consumer goods to transportation and tourism). Economic history Under the British administration, the people of Burma were at the bottom of the social hierarchy, with Europeans at the top, Indians, Chinese, and Christianized minorities in the middle, and Buddhist Burmese at the bottom. Forcefully integrated into the world economy, Burma's economy grew in extractive industries and cash crops agriculture; much of the wealth was concentrated in the hands of Europeans, however. The country became the world's largest exporter of rice, mainly to European markets, while other colonies like India suffered mass starvation. The British followed the ideologies of Social Darwinism and the free market, and opened up the country to large-scale immigration with Rangoon exceeding New York City as the greatest immigration port in the world in the 1920s. Historian Thant Myint-U states, "This was out of a total population of only 13 million; it was equivalent to the United Kingdom today taking 2 million people a year." By then, in most of the largest cities in Burma, Rangoon, Akyab, Bassein and Moulmein, the Indian immigrants formed a majority of the population. The Burmese under British rule felt helpless, and reacted with a "racism that combined feelings of superiority and fear". Crude oil production, an indigenous industry of Yenangyaung, was taken over by the British and put under Burmah Oil monopoly. British Burma began exporting crude oil in 1853. European firms produced 75% of the world's teak. The wealth was however, mainly concentrated in the hands of Europeans. In the 1930s, agricultural production fell dramatically as international rice prices declined and did not recover for several decades. During the Japanese invasion of Burma in World War II, the British followed a scorched earth policy. They destroyed the major government buildings, oil wells and mines for tungsten, tin, lead and silver to keep them from the Japanese. Myanmar was bombed extensively by the Allies. After independence, the country was in ruins with its major infrastructure completely destroyed. With the loss of India, Burma lost relevance and obtained independence from the British. After a parliamentary government was formed in 1948, Prime Minister U Nu embarked upon a policy of nationalisation and the state was declared the owner of all land. The government tried to implement an eight-year plan partly financed by injecting money into the economy which caused some inflation. The 1962 coup d'état was followed by an economic scheme called the Burmese Way to Socialism, a plan to nationalise all industries, with the exception of agriculture. While the economy continued to grow at a slower rate, the country eschewed a Western-oriented development model, and by the 1980s, was left behind capitalist powerhouses like Singapore which were integrated into Western economy. Myanmar asked for admittance to a least developed country status in 1987 to receive debt relief. Agriculture The major agricultural product is rice, which covers about 60% of the country's total cultivated land area. Rice accounts for 97% of total food grain production by weight. Through collaboration with the International Rice Research Institute 52 modern rice varieties were released in the country between 1966 and 1997, helping increase national rice production to 14 million tons in 1987 and to 19 million tons in 1996. By 1988, modern varieties were planted on half of the country's ricelands, including 98 per cent of the irrigated areas. In 2008 rice production was estimated at 50 million tons. Extractive industries Myanmar produces precious stones such as rubies, sapphires, pearls, and jade. Rubies are the biggest earner; 90% of the world's rubies come from the country, whose red stones are prized for their purity and hue. Thailand buys the majority of the country's gems. Myanmar's "Valley of Rubies", the mountainous Mogok area, north of Mandalay, is noted for its rare pigeon's blood rubies and blue sapphires. Many U.S. and European jewellery companies, including Bulgari, Tiffany and Cartier, refuse to import these stones based on reports of deplorable working conditions in the mines. Human Rights Watch has encouraged a complete ban on the purchase of Burmese gems based on these reports and because nearly all profits go to the ruling junta, as the majority of mining activity in the country is government-run. The government of Myanmar controls the gem trade by direct ownership or by joint ventures with private owners of mines. Rare-earth elements are also a significant export, as Myanmar supplies around 10% of the world's rare earths. Conflict in Kachin State has threatened the operations of its mines as of February 2021. Other industries include agricultural goods, textiles, wood products, construction materials, gems, metals, oil and natural gas. Myanmar Engineering Society has identified at least 39 locations capable of geothermal power production and some of these hydrothermal reservoirs lie quite close to Yangon which is a significant underutilised resource for electrical production. Tourism The government receives a significant percentage of the income of private-sector tourism services. The most popular available tourist destinations in Myanmar include big cities such as Yangon and Mandalay; religious sites in Mon State, Pindaya, Bago and Hpa-An; nature trails in Inle Lake, Kengtung, Putao, Pyin Oo Lwin; ancient cities such as Bagan and Mrauk-U; as well as beaches in Nabule, Ngapali, Ngwe-Saung, Mergui. Nevertheless, much of the country is off-limits to tourists, and interactions between foreigners and the people of Myanmar, particularly in the border regions, are subject to police scrutiny. They are not to discuss politics with foreigners, under penalty of imprisonment and, in 2001, the Myanmar Tourism Promotion Board issued an order for local officials to protect tourists and limit "unnecessary contact" between foreigners and ordinary Burmese people. The most common way for travellers to enter the country is by air. According to the website Lonely Planet, getting into Myanmar is problematic: "No bus or train service connects Myanmar with another country, nor can you travel by car or motorcycle across the border – you must walk across." They further state that "It is not possible for foreigners to go to/from Myanmar by sea or river." There are a few border crossings that allow the passage of private vehicles, such as the border between Ruili (China) to Mu-se, the border between Htee Kee (Myanmar) and Phu Nam Ron (Thailand)—the most direct border between Dawei and Kanchanaburi, and the border between Myawaddy and Mae Sot, Thailand. At least one tourist company has successfully run commercial overland routes through these borders since 2013. Flights are available from most countries, though direct flights are limited to mainly Thai and other ASEAN airlines. According to Eleven magazine, "In the past, there were only 15 international airlines and increasing numbers of airlines have begun launching direct flights from Japan, Qatar, Taiwan, South Korea, Germany and Singapore." Expansions were expected in September 2013 but are mainly Thai and other Asian-based airlines. Society Demographics The provisional results of the 2014 Myanmar Census show that the total population is 51,419,420. This figure includes an estimated 1,206,353 persons in parts of northern Rakhine State, Kachin State and Kayin State who were not counted. People who were out of the country at the time of the census are not included in these figures. There are over 600,000 registered migrant workers from Myanmar in Thailand, and millions more work illegally. Burmese citizens account for 80% of all migrant workers in Thailand. The national population density is , among the lowest in Southeast Asia. Myanmar's fertility rate is 2.23, which is slightly above replacement level and is low compared to Southeast Asian countries of similar economic standing, such as Cambodia (3.18) and Laos (4.41). There has been a significant decline in fertility in the 2000s, from a rate of 4.7 children per woman in 1983, down to 2.4 in 2001, despite the absence of any national population policy. The fertility rate is much lower in urban areas. The relatively rapid decline in fertility is attributed to several factors, including extreme delays in marriage (almost unparalleled among developing countries in the region), the prevalence of illegal abortions, and the high proportion of single, unmarried women of reproductive age, with 25.9% of women aged 30–34 and 33.1% of men and women aged 25–34 being single. These patterns stem from economic dynamics, including high income inequality, which results in residents of reproductive age opting for delay of marriage and family-building in favour of attempting to find employment and establish some form of wealth; the average age of marriage in Myanmar is 27.5 for men, 26.4 for women. Largest cities Ethnic groups Myanmar is ethnically diverse. The government recognises 135 distinct ethnic groups. There are at least 108 different ethnolinguistic groups in Myanmar, consisting mainly of distinct Tibeto-Burman peoples, but with sizeable populations of Tai–Kadai, Hmong–Mien, and Austroasiatic (Mon–Khmer) peoples. The Bamar form an estimated 68% of the population. 10% of the population are Shan. The Kayin make up 7% of the population. The Rakhine people constitute 4% of the population. Overseas Chinese form approximately 3% of the population. Myanmar's ethnic minority groups prefer the term "ethnic nationality" over "ethnic minority" as the term "minority" furthers their sense of insecurity in the face of what is often described as "Burmanisation"—the proliferation and domination of the dominant Bamar culture over minority cultures. Mon, who form 2% of the population, are ethno-linguistically related to the Khmer. Overseas Indians are 2%. The remainder are Kachin, Chin, Rohingya, Anglo-Indians, Gurkha, Nepali and other ethnic minorities. Included in this group are the Anglo-Burmese. Once forming a large and influential community, the Anglo-Burmese left the country in steady streams from 1958 onwards, principally to Australia and the United Kingdom. It is estimated that 52,000 Anglo-Burmese remain in Myanmar. , 110,000 Burmese refugees were living in refugee camps in Thailand. Refugee camps exist along Indian, Bangladeshi and Thai borders while several thousand are in Malaysia. Conservative estimates state that there are over 295,800 minority refugees from Myanmar, with the majority being Rohingya, Karen, and Karenni are principally located along the Thai-Myanmar border. There are nine permanent refugee camps along the Thai-Myanmar border, most of which were established in the mid-1980s. The refugee camps are under the care of the Thai-Burma Border Consortium (TBBC). Since 2006, over 55,000 Burmese refugees have been resettled in the United States. The persecution of Burmese Indians, Burmese Chinese and other ethnic groups after the military coup headed by General Ne Win in 1962 led to the expulsion or emigration of 300,000 people. They migrated to escape racial discrimination and the wholesale nationalisation of private enterprise that took place in 1964. The Anglo-Burmese at this time either fled the country or changed their names and blended in with the broader Burmese society. Many Rohingya Muslims have fled Myanmar. Many refugees headed to neighbouring Bangladesh, including 200,000 in 1978 as a result of the King Dragon operation in Arakan. 250,000 more left in 1991. Languages Myanmar is home to four major language families: Sino-Tibetan, Tai–Kadai, Austro-Asiatic, and Indo-European. Sino-Tibetan languages are most widely spoken. They include Burmese, Karen, Kachin, Chin, and Chinese (mainly Hokkien). The primary Tai–Kadai language is Shan. Mon, Palaung, and Wa are the major Austroasiatic languages spoken in Myanmar. The two major Indo-European languages are Pali, the liturgical language of Theravada Buddhism, and English. More than a hundred languages are spoken in total. Since many of them are known only within small tribes around the country, they may have been lost (many if not all) after a few generations. Burmese, the mother tongue of the Bamar and official language of Myanmar, is related to Tibetan and Chinese. It is written in a script consisting of circular and semi-circular letters, which were adapted from the Mon script, which in turn was developed from a southern Indian script in the 5th century. The earliest known inscriptions in the Burmese script date from the 11th century. It is also used to write Pali, the sacred language of Theravada Buddhism, as well as several ethnic minority languages, including Shan, several Karen dialects, and Kayah (Karenni), with the addition of specialised characters and diacritics for each language. The Burmese language incorporates widespread usage of honorifics and is age-oriented. Burmese society has traditionally stressed the importance of education. In villages, secular schooling often takes place in monasteries. Secondary and tertiary education take place at government schools. Religion Many religions are practised in Myanmar. Religious edifices and orders have been in existence for many years. The Christian and Muslim populations do, however, face religious persecution and it is hard, if not impossible, for non-Buddhists to join the army or get government jobs, the main route to success in the country. Such persecution and targeting of civilians is particularly notable in eastern Myanmar, where over 3,000 villages have been destroyed in the past ten years. More than 200,000 Muslims have fled to Bangladesh by 2007 to escape persecution. A large majority of the population practices Buddhism; estimates range from 80% to 89%. According to 2014 Myanmar Census, 87.9% of the population identifies as Buddhists. Theravāda Buddhism is the most widespread. There are some 500,000 Buddhist monks and 75,000 nuns in this country of 54 million. Other religions are practised largely without obstruction, with the notable exception of some religious minorities such as the Rohingya people, who have continued to have their citizenship status denied and treated as illegal immigrants instead, and Christians in Chin State. According to 2014 census, 6.2% of the population identifies as Christian; 4.3% as Muslim; 0.8% as followers of tribal religions; 0.5% as Hindus; 0.2% as followers of other religions; and 0.1% follow no religion. According to the 2010 estimates of the Pew Research Center, 7% of the population is Christian; 4% is Muslim; 1% follows traditional animistic beliefs; and 2% follow other religions, including Mahayana Buddhism, Hinduism, and East Asian religions. Jehovah's Witnesses have been present since 1914 and have about 80 congregations around the country and a branch office in Yangon publishing in 16 languages. A tiny Jewish community in Yangon had a synagogue but no resident rabbi. Although Hinduism is practised by 0.5% of the population, it was a major religion in Myanmar's past. Several strains of Hinduism existed alongside both Theravada Buddhism and Mahayana Buddhism in the Mon and Pyu period in the first millennium, and down to the Pagan period (9th to 13th centuries) when "Saivite and Vaishana elements enjoyed greater elite influence than they would later do." Burmese folk religion is practised by many Bamars alongside Buddhism. Health The general state of health care in Myanmar is poor. The government spends anywhere from 0.5% to 3% of the country's GDP on health care, consistently ranking among the lowest in the world. Although health care is nominally free, in reality, patients have to pay for medicine and treatment, even in public clinics and hospitals. Public hospitals lack many of the basic facilities and equipment. The 2010 maternal mortality rate per 100,000 births for Myanmar is 240. This is compared with 219.3 in 2008 and 662 in 1990. The under 5 mortality rate, per 1,000 births is 73 and the neonatal mortality as a percentage of under 5's mortality is 47. According to the report named "Preventable Fate", published by Doctors without Borders, 25,000 Burmese AIDS patients died in 2007, deaths that could largely have been prevented by antiretroviral therapy drugs and proper treatment. HIV/AIDS, recognised as a disease of concern by the Burmese Ministry of Health, is most prevalent among sex workers and intravenous drug users. In 2005, the estimated adult HIV prevalence rate in Myanmar was 1.3% (200,000–570,000 people), according to UNAIDS, and early indicators of any progress against the HIV epidemic are inconsistent. However, the National AIDS Programme Myanmar found that 32% of sex workers and 43% of intravenous drug users in Myanmar have HIV. Education According to the UNESCO Institute of Statistics, Myanmar's official literacy rate as of 2000 was 90%. Historically, Myanmar has had high literacy rates. The educational system of Myanmar is operated by the government agency, the Ministry of Education. The education system is based on the United Kingdom's system after nearly a century of British and Christian presences in Myanmar. Nearly all schools are government-operated, but there has been an increase in privately funded English language schools in the early 21st century. Schooling is compulsory until the end of elementary school, approximately about 9 years old, while the compulsory schooling age is 15 or 16 at international level. There are 101 universities, 12 institutes, 9 degree colleges and 24 colleges in Myanmar, a total of 146 higher education institutions. There are 10 technical training schools, 23 nursing training schools, 1 sport academy and 20 midwifery schools. There are four international schools acknowledged by WASC and College Board—The International School Yangon, Myanmar International School, Yangon International School, and International School of Myanmar in Yangon. Myanmar was ranked 129th in the Global Innovation Index in 2020. Crime Myanmar had a murder rate of 15.2 per 100,000 population with a total of 8,044 murders in 2012. Factors influencing Myanmar's high murder rate include communal violence and armed conflict. Myanmar is one of the world's most corrupt nations. The 2012 Transparency International Corruption Perceptions Index ranked the country at number 171, out of 176 countries in total. Myanmar is the world's second largest producer of opium after Afghanistan, producing some 25% of the world's opium, and forms part of the Golden Triangle. The opium industry was a monopoly during colonial times and has since been illegally operated by corrupt officials in the Burmese military and rebel fighters, primarily as the basis for heroin manufacture. Myanmar is the largest producer of methamphetamines in the world, with the majority of Ya ba found in Thailand produced in Myanmar, particularly in the Golden Triangle and northeastern Shan State, which borders Thailand, Laos and China. Burmese-produced ya ba is typically trafficked to Thailand via Laos, before being transported through the northeastern Thai region of Isan. Culture A diverse range of indigenous cultures exist in Myanmar, with majority culture primarily Buddhist and Bamar. Bamar culture has been influenced by the cultures of neighbouring countries, manifested in its language, cuisine, music, dance and theatre. The arts, particularly literature, have historically been influenced by the local form of Theravada Buddhism. Considered the national epic of Myanmar, the Yama Zatdaw, an adaptation of India's Ramayana, has been influenced greatly by Thai, Mon, and Indian versions of the play. Buddhism is practised along with nat worship, which involves elaborate rituals to propitiate one from a pantheon of 37 nats. In a traditional village, the monastery is the centre of cultural life. Monks are venerated and supported by the lay people. A novitiation ceremony called shinbyu is the most important coming of age events for a boy, during which he enters the monastery for a short time. All male children in Buddhist families are encouraged to be a novice (beginner for Buddhism) before the age of twenty and to be a monk after the age of twenty. Girls have ear-piercing ceremonies () at the same time. Burmese culture is most evident in villages where local festivals are held throughout the year, the most important being the pagoda festival. Many villages have a guardian nat, and superstition and taboos are commonplace. British colonial rule introduced Western elements of culture to Myanmar. Myanmar's education system is modelled after that of the United Kingdom. Colonial architectural influences are most evident in major cities such as Yangon. Many ethnic minorities, particularly the Karen in the southeast and the Kachin and Chin who populate the north and northeast, practice Christianity. According to The World Factbook, the Burman population is 68% and the ethnic groups constitute 32%. In contrast, the exiled leaders and organisations claim the country is 40% ethnic. Cuisine Burmese cuisine is characterised by extensive use of fish products such as fish sauce, ngapi (fermented seafood) and dried prawn. Mohinga is the traditional breakfast dish and is Myanmar's national dish. Seafood is a common ingredient in coastal cities, while meat and poultry are more commonly used in landlocked cities like Mandalay. Freshwater fish and shrimp have been incorporated into inland cooking as a primary source of protein and are used in a variety of ways, fresh, salted whole or filleted, salted and dried, made into a salty paste, or fermented sour and pressed. Burmese cuisine also includes a variety of salads (a thoke), centred on one major ingredient, ranging from starches like rice, wheat and rice noodles, glass noodles and vermicelli, to potato, ginger, tomato, kaffir lime, long bean, and lahpet (pickled tea leaves). Sport The Lethwei, Bando, Banshay, and Pongyi thaing martial arts and chinlone are traditional sports in Myanmar. Football is played all over the country, even in villages, and its national team is ruled by the Myanmar Football Federation. The 2013 Southeast Asian Games took place in Naypyidaw, Yangon, Mandalay and Ngwesaung Beach in December representing the third occasion that the event has been staged in Myanmar. Myanmar previously hosted the games in 1961 and 1969. Art Burmese traditional art concepts are popular and respected by the Burmese people and people from abroad. Burmese contemporary art has developed quite rapidly on its own terms. Artists born after the 1980s have had greater chances of art practice outside the country. One of the first to study western art was Ba Nyan. Together with Ngwe Gaing and a handful of other artists, they were the pioneers of western painting style. Later on most young children learned the concepts from them. Some well known contemporary artists are Lun Gywe, Aung Kyaw Htet, MPP Yei Myint, Myint Swe, Min Wai Aung, Aung Myint, Kin Maung Yin, Po Po and Zaw Zaw Aung. Media and communications Because of Myanmar's political climate, there are not many media companies in relation to the country's population. Some are privately owned. All programming must meet with the approval of the censorship board. The Burmese government announced on 20 August 2012 that it would stop censoring media before publication. Following the announcement, newspapers and other outlets no longer required approved by state censors; however, journalists in the country can still face consequences for what they write and say. In April 2013, international media reports were published to relay the enactment of the media liberalisation reforms that we announced in August 2012. For the first time in numerous decades, the publication of privately owned newspapers commenced in the country. Internet Internet use is estimated to be relatively low compared to other countries. Myanmar's internet used to be subject to censorship, and authorities viewed e-mails and posts on Internet blogs until 2012 when the government removed media censorship. During the strict censorship days, activity at internet cafes was regulated, and one blogger named Zarganar was sentenced to prison for publishing a video of destruction caused by Cyclone Nargis in 2008; Zarganar was released in October 2011. In regards to communications infrastructure, Myanmar is the last ranked Asian country in the World Economic Forum's Networked Readiness Index (NRI) – an indicator for determining the development level of a country's information and communication technologies. With 139 countries reported on, Myanmar ranked number 133 overall in the 2016 NRI ranking. Film Myanmar's first film was a documentary of the funeral of Tun Shein—a leading politician of the 1910s, who campaigned for Burmese independence in London. The first Burmese silent film Myitta Ne Thuya (Love and Liquor) in 1920 which proved a major success, despite its poor quality due to a fixed camera position and inadequate film accessories. During the 1920s and 1930s, many Burmese-owned film companies made and produced several films. The first Burmese sound film was produced in 1932 in Bombay, India with the title Ngwe Pay Lo Ma Ya (Money Can't Buy It). After World War II, Burmese cinema continued to address political themes. Many of the films produced in the early Cold War era had a strong propaganda element to them. In the era that followed the political events of 1988, the film industry has been increasingly controlled by the government. Film stars who had been involved in the political activities were banned from appearing in films. The government issues strict rules on censorship and largely determines who produces films, as well as who gets academy awards. Over the years, the movie industry has also shifted to producing many lower-budget direct-to-video films. Most of the movies produced nowadays are comedies. In 2008, only 12 films worthy of being considered for an Academy Award were made, although at least 800 VCDs were produced. Myanmar is the primary subject of a 2007 graphic novel titled Chroniques Birmanes by Québécois author and animator, Guy Delisle. The graphic novel was translated into English under the title Burma Chronicles in 2008. In 2009, a documentary about Burmese videojournalists called Burma VJ was released. This film was nominated for Best Documentary Feature at the 2010 Academy Awards. The Lady had its world premiere on 12 September 2011 at the 36th Toronto International Film Festival. See also Outline of Myanmar Censorship in Myanmar Notes References Bibliography Cameron, Ewan. "The State of Myanmar", History Today, May 2020, vol. 70, issue 4, pp. 90–93. Combs, Daniel. Until the World Shatters: Truth, Lies, and the Looting of Myanmar (2021). "Burma's Western Border as Reported by the Diplomatic Correspondence(1947–1975)" by Aye Chan External links Government Republic of the Union of Myanmar – President's Office Myanmar National Portal Chief of State and Cabinet Members from the Central Intelligence Agency (CIA) General information General information about Myanmar Burma Myanmar search Engine Burma. The World Factbook. Central Intelligence Agency. Burma from UCB Libraries GovPubs Burma profile from BBC News Myanmar at Encyclopædia Britannica Interactive timeline of turning points in Burmese history Key Development Forecasts for Myanmar from International Futures Online Burma/Myanmar Library: Classified and annotated links to more than 17,000 full-text documents on Burma/Myanmar Economy Taipei American Chamber of Commerce; Topics Magazine, Analysis, November 2012. Myanmar: Southeast Asia's Last Frontier for Investment, By David DuByne Agriculture Myanmar Business Today; Print Edition, 27 February 2014. A Roadmap to Building Myanmar into the Food Basket of Asia, by David DuByne & Hishamuddin Koh Myanmar Business Today; Print Edition, 19 June 2014. Myanmar's Institutional Infrastructure Constraints and How to Fill the Gaps, by David DuByne & Hishamuddin Koh Trade World Bank Summary Trade Statistics Myanmar Environment Myanmar Marine Biodiversity Atlas Online from the Wildlife Conservation Society and University of Exeter Former socialist republics Least developed countries Member states of ASEAN Current member states of the United Nations Military dictatorships Southeast Asian countries States and territories established in 1948 1948 establishments in Burma Countries in Asia Protected areas of Myanmar

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Mediterranean (disambiguation)

The Mediterranean Sea is a major body of water south of Europe, west of Asia and north of Africa. Mediterranean may also refer to: Geography Mediterranean sea (oceanography), an oceanographic term to designate a mostly enclosed sea that has limited exchange of deep water with outer oceans Mediterranean Basin, the European, Asian, and African land areas surrounding the Mediterranean Sea Mediterranean climate, a type of climate that resembles the weather in the Mediterranean basin Mediterranean Europe, those European countries that have a Mediterranean coastline Mediterranean forests, woodlands, and scrub, an ecoregion found in various parts of the world, named for the Mediterranean basin A list of Mediterranean countries Politics and military Mediterranean States, the two countries of Cyprus and Malta Union for the Mediterranean, a political partnership of European, African and Middle Eastern countries Mediterranean Dialogue, a forum of cooperation between NATO and seven countries of the Mediterranean Mediterranean Theater of Operations, a major theatre of World War II Mediterranean pass, a document which identified a ship as being protected under a treaty with states of the Barbary Coast Méditerranée, the name of a historical department of the First French Empire in present-day Italy Other uses "The Mediterranean" (La Méditerranée), a historical work by Fernand Braudel Ansa Mediterranean, an Italian news agency Mediterranean League, a football league played in Spain during the Spanish Civil War Mediterranean diet, a modern nutritional recommendation inspired by traditional dietary patterns of Greece, Southern Italy, Spain and Portugal Mediterranean cuisine, the food from the cultures adjacent to the Mediterranean Sea Mediterranean race, a historical racial classification Familial Mediterranean fever, a hereditary inflammatory disorder Mediterranean University, a university located in Podgorica, Montenegro See also British Mediterranean Airways, an airline in the United Kingdom Mediterranean Ridge, a wide ridge in the bed of the Mediterranean Sea Mediterranean noir, a literary style in fiction Mediterranean Revival architecture, a design style during the 20th century Classical antiquity Mediterranea (film), a 2015 film Mediterranean Universities Union, an association of universities based in the Mediterranean basin Mediterranean Grand Prix, a motor race held in Sicily from 1962 until 1998 Mediterranean Games, a multi-sport games held every four years Mediterranean Harbor, one of the Tokyo Disney Sea's themed areas List of Mediterranean fleets Mediterranean Squadron (disambiguation) Mediterranean Shearwater (disambiguation)

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https://en.wikipedia.org/wiki/May%2024

May 24

Events Pre-1600 919 – The nobles of Franconia and Saxony elect Henry the Fowler at the Imperial Diet in Fritzlar as king of the East Frankish Kingdom. 1218 – The Fifth Crusade leaves Acre for Egypt. 1276 – Magnus Ladulås is crowned King of Sweden in Uppsala Cathedral. 1487 – The ten-year-old Lambert Simnel is crowned in Christ Church Cathedral, Dublin, Ireland, with the name of Edward VI in a bid to threaten King Henry VII's reign. 1567 – Erik XIV of Sweden and his guards murder five incarcerated Swedish nobles. 1595 – Nomenclator of Leiden University Library appears, the first printed catalog of an institutional library. 1601–1900 1607 – One hundred-five English settlers under the leadership of Captain Christopher Newport established the colony called Jamestown at the mouth of the James River on the Virginia coast, the first permanent English colony in America. 1621 – The Protestant Union is formally dissolved. 1626 – Peter Minuit buys Manhattan. 1667 – The French Royal Army crosses the border into the Spanish Netherlands, starting the War of Devolution opposing France to the Spanish Empire and the Triple Alliance. 1683 – The Ashmolean Museum in Oxford, England, opens as the world's first university museum. 1689 – The English Parliament passes the Act of Toleration protecting dissenting Protestants but excluding Roman Catholics. 1738 – John Wesley is converted, essentially launching the Methodist movement; the day is celebrated annually by Methodists as Aldersgate Day and a church service is generally held on the preceding Sunday. 1798 – The Irish Rebellion of 1798 led by the United Irishmen against British rule begins. 1813 – South American independence leader Simón Bolívar enters Mérida, leading the invasion of Venezuela, and is proclaimed El Libertador ("The Liberator"). 1822 – Battle of Pichincha: Antonio José de Sucre secures the independence of the Presidency of Quito. 1832 – The First Kingdom of Greece is declared in the London Conference. 1844 – Samuel Morse sends the message "What hath God wrought" (a biblical quotation, Numbers 23:23) from a committee room in the United States Capitol to his assistant, Alfred Vail, in Baltimore, Maryland, to inaugurate a commercial telegraph line between Baltimore and Washington D.C. 1856 – John Brown and his men kill five slavery supporters at Pottawatomie Creek, Kansas. 1861 – American Civil War: Union troops occupy Alexandria, Virginia. 1873 – Patrick Francis Healy becomes the first black president of a predominantly white university in the United States. 1883 – The Brooklyn Bridge in New York City is opened to traffic after 14 years of construction. 1900 – Second Boer War: The United Kingdom annexes the Orange Free State. 1901–present 1915 – World War I: Italy declares war on Austria-Hungary, joining the conflict on the side of the Allies. 1930 – Amy Johnson lands in Darwin, Northern Territory, becoming the first woman to fly solo from England to Australia (she left on May 5 for the 11,000 mile flight). 1935 – The first night game in Major League Baseball history is played in Cincinnati, Ohio, with the Cincinnati Reds beating the Philadelphia Phillies 2–1 at Crosley Field. 1940 – Igor Sikorsky performs the first successful single-rotor helicopter flight. 1940 – Acting on the orders of Soviet leader Joseph Stalin, NKVD agent Iosif Grigulevich orchestrates an unsuccessful assassination attempt on exiled Russian revolutionary Leon Trotsky in Coyoacán, Mexico. 1941 – World War II: In the Battle of the Atlantic, the German Battleship Bismarck sinks then-pride of the Royal Navy, , killing all but three crewmen. 1948 – Arab–Israeli War: Egypt captures the Israeli kibbutz of Yad Mordechai, but the five-day effort gives Israeli forces time to prepare enough to stop the Egyptian advance a week later. 1956 – The first Eurovision Song Contest is held in Lugano, Switzerland. 1958 – United Press International is formed through a merger of the United Press and the International News Service. 1960 – Following the 1960 Valdivia earthquake, the largest ever recorded earthquake, Cordón Caulle begins to erupt. 1961 – American civil rights movement: Freedom Riders are arrested in Jackson, Mississippi, for "disturbing the peace" after disembarking from their bus. 1962 – Project Mercury: American astronaut Scott Carpenter orbits the Earth three times in the Aurora 7 space capsule. 1967 – Egypt imposes a blockade and siege of the Red Sea coast of Israel. 1976 – The Judgment of Paris takes place in France, launching California as a worldwide force in the production of quality wine. 1981 – Ecuadorian president Jaime Roldós Aguilera, his wife, and his presidential committee die in an aircraft accident while travelling from Quito to Zapotillo minutes after the president gave a famous speech regarding the 24 de mayo anniversary of the Battle of Pichincha. 1982 – Liberation of Khorramshahr: Iranians recapture of the port city of Khorramshahr from the Iraqis during the Iran–Iraq War. 1988 – Section 28 of the United Kingdom's Local Government Act 1988, a controversial amendment stating that a local authority cannot intentionally promote homosexuality, is enacted. 1991 – Israel conducts Operation Solomon, evacuating Ethiopian Jews to Israel. 1992 – The last Thai dictator, General Suchinda Kraprayoon, resigns following pro-democracy protests. 1992 – The ethnic cleansing in Kozarac, Bosnia and Herzegovina begins when Serbian militia and police forces enter the town. 1993 – Eritrea gains its independence from Ethiopia. 1993 – Roman Catholic Cardinal Juan Jesús Posadas Ocampo and five other people are assassinated in a shootout at Miguel Hidalgo y Costilla Guadalajara International Airport in Mexico. 1994 – Four men convicted of bombing the World Trade Center in New York in 1993; each one is sentenced to 240 years in prison. 1995 – While attempting to return to Leeds Bradford Airport in the United Kingdom, Knight Air Flight 816 crashes in Harewood, North Yorkshire, killing all 12 people on board. 1999 – The International Criminal Tribunal for the former Yugoslavia in The Hague, Netherlands indicts Slobodan Milošević and four others for war crimes and crimes against humanity committed in Kosovo. 2000 – Israeli troops withdraw from southern Lebanon after 22 years of occupation. 2002 – Russia and the United States sign the Moscow Treaty. 2014 – A 6.4 magnitude earthquake occurs in the Aegean Sea between Greece and Turkey, injuring 324 people. 2014 – At least three people are killed in a shooting at Brussels' Jewish Museum of Belgium. 2019 – Twenty-two students die in a fire in Surat (India). 2019 – Under pressure over her handling of Brexit, British Prime Minister Theresa May announces her resignation as Leader of the Conservative Party, effective as of June 7. Births Pre-1600 15 BC – Germanicus, Roman general (d. 19) 1335 – Margaret of Bohemia, Queen of Hungary (d. 1349) 1494 – Pontormo, Italian painter (d. 1557) 1522 – John Jewel, English bishop (d. 1571) 1544 – William Gilbert, English physician, physicist, and astronomer (d. 1603) 1576 – Elizabeth Carey, Lady Berkeley, English courtier (d. 1635) 1601–1900 1616 – John Maitland, 1st Duke of Lauderdale, Scottish politician, Secretary of State, Scotland (d. 1682) 1628 – Marek Sobieski, Polish noble (d. 1652) 1669 – Emerentia von Düben, Swedish royal favorite (d. 1743) 1671 – Gian Gastone de' Medici, Grand Duke of Tuscany (d. 1737) 1686 – Daniel Gabriel Fahrenheit, Polish-German physicist and engineer, developed the Fahrenheit scale (d. 1736) 1689 – Daniel Finch, 8th Earl of Winchilsea, English politician, Lord President of the Council (d. 1769) 1743 – Jean-Paul Marat, Swiss-French physician, journalist, and politician (d. 1793) 1789 – Cathinka Buchwieser, German operatic singer and actress (d.1828) 1794 – William Whewell, English priest and philosopher (d. 1866) 1803 – Alexander von Nordmann, Finnish biologist and paleontologist (d. 1866) 1810 – Abraham Geiger, German rabbi and scholar (d. 1874) 1816 – Emanuel Leutze, German-American painter (d. 1868) 1819 – Queen Victoria of the United Kingdom (d. 1901) 1830 – Alexei Savrasov, Russian painter and academic (d. 1897) 1855 – Arthur Wing Pinero, English actor, director, and playwright (d. 1934) 1861 – Gerald Strickland, 1st Baron Strickland, Maltese lawyer and politician, 4th Prime Minister of Malta (d. 1940) 1863 – George Grey Barnard, American sculptor (d. 1938) 1868 – Charlie Taylor, American engineer and mechanic (d. 1956) 1870 – Benjamin N. Cardozo, American lawyer and judge (d. 1938) 1870 – Jan Smuts, South African lawyer and politician, 2nd Prime Minister of South Africa (d. 1950) 1874 – Princess Marie of Hesse and by Rhine (d. 1878) 1875 – Robert Garrett, American discus thrower and shot putter (d. 1961) 1878 – Lillian Moller Gilbreth, American psychologist and engineer (d. 1972) 1879 – H. B. Reese, American candy maker, created Reese's Peanut Butter Cups (d. 1956) 1886 – Paul Paray, French organist, composer, and conductor (d. 1979) 1887 – Mick Mannock, Irish soldier and pilot, Victoria Cross recipient (d. 1918) 1891 – William F. Albright, American archaeologist, philologist, and scholar (d. 1971) 1892 – Elizabeth Foreman Lewis, American author and educator (d. 1958) 1895 – Samuel Irving Newhouse Sr., American publisher, founded Advance Publications (d. 1979) 1899 – Suzanne Lenglen, French tennis player (d. 1938) 1899 – Henri Michaux, Belgian-French poet and painter (d. 1984) 1900 – Eduardo De Filippo, Italian actor and screenwriter (d. 1984) 1901–present 1901 – José Nasazzi, Uruguayan footballer and manager (d. 1968) 1902 – Lionel Conacher, Canadian football player and politician (d. 1954) 1902 – Sylvia Daoust, Canadian sculptor (d. 2004) 1905 – George Nakashima, American woodworker and architect (d. 1990) 1905 – Mikhail Sholokhov, Russian novelist and short story writer, Nobel Prize laureate (d. 1984) 1909 – Wilbur Mills, American banker and politician (d. 1992) 1910 – Jimmy Demaret, American golfer (d. 1983) 1913 – Joe Abreu, American baseball player and soldier (d. 1993) 1914 – Lilli Palmer, German-American actress (d. 1986) 1916 – Roden Cutler, Australian lieutenant and politician, 32nd Governor of New South Wales (d. 2002) 1917 – Alan Campbell, Baron Campbell of Alloway, English lawyer and judge (d. 2013) 1918 – Coleman Young, American politician, 66th Mayor of Detroit (d. 1997) 1923 – Siobhán McKenna, Irish actress (d. 1986) 1924 – Philip Pearlstein, American soldier and painter 1925 – Carmine Infantino, American illustrator and educator (d. 2013) 1925 – Mai Zetterling, Swedish actress and director (d. 1994) 1926 – Stanley Baxter, Scottish actor and screenwriter 1928 – William Trevor, Irish novelist, playwright and short story writer (d. 2016) 1932 – Arnold Wesker, English playwright and producer (d. 2016) 1933 – Jane Byrne, American lawyer and politician, 50th Mayor of Chicago (d. 2014) 1933 – Réal Giguère, Canadian television host and actor 1933 – Aharon Lichtenstein, French-Israeli rabbi and author (d. 2015) 1935 – Joan Micklin Silver, American director and screenwriter (d. 2020) 1936 – Harold Budd, American composer and poet (d. 2020) 1937 – Maryvonne Dupureur, French runner and educator (d. 2008) 1937 – Archie Shepp, American saxophonist and composer 1938 – Prince Buster, Jamaican singer-songwriter and producer (d. 2016) 1938 – Tommy Chong, Canadian-American actor, director, producer, and screenwriter 1940 – Joseph Brodsky, Russian-American poet and essayist, Nobel Prize laureate (d. 1996) 1941 – Bob Dylan, American singer-songwriter, guitarist, artist, writer, and producer; Nobel Prize laureate 1941 – Patricia Hollis, Baroness Hollis of Heigham, English academic and politician 1942 – Ali Bacher, South African cricketer and manager 1942 – Hannu Mikkola, Finnish race car driver (d. 2021) 1942 – Ichirō Ozawa, Japanese lawyer and politician, Japanese Minister of Home Affairs 1943 – Gary Burghoff, American actor 1944 – Patti LaBelle, American singer-songwriter and actress 1944 – Dominique Lavanant, French actress 1945 – Terry Callier, American singer-songwriter and guitarist (d. 2012) 1945 – Steven Norris, English engineer and politician 1945 – Richard Ottaway, English lieutenant and politician, Shadow Secretary of State for Environment, Food and Rural Affairs 1945 – Priscilla Presley, American actress and businesswoman 1946 – Tansu Çiller, Turkish politician, Prime Minister of Turkey 1946 – Jesualdo Ferreira, Portuguese footballer and manager 1946 – Irena Szewińska, Russian-Polish sprinter (d. 2018) 1947 – Albert Bouchard, American singer-songwriter, guitarist, and drummer 1947 – Mike De Leon, Filipino director, producer, screenwriter and cinematographer 1947 – Mike Reid, American singer-songwriter, pianist, and American football player 1947 – Waddy Wachtel, American guitarist, singer-songwriter, and record producer 1947 – Martin Winterkorn, German businessman 1948 – Richard Dembo, French director and screenwriter (d. 2004) 1949 – Jim Broadbent, English actor 1949 – Roger Deakins, English cinematographer 1953 – Alfred Molina, English actor 1955 – Rosanne Cash, American singer-songwriter and guitarist 1955 – Philippe Lafontaine, Belgian singer and songwriter 1955 – Rajesh Roshan, Indian composer 1956 – R. B. Bernstein, American constitutional historian 1956 – Larry Blackmon, American singer-songwriter and producer 1956 – Dominic Grieve, English lawyer and politician, Attorney General for England and Wales 1956 – Michael Jackson, Irish archbishop 1958 – Chip Ganassi, American race car driver, team owner and businessman 1959 – Pelle Lindbergh, Swedish-American ice hockey player (d. 1985) 1959 – Barry O'Farrell, Australian politician, 43rd Premier of New South Wales 1960 – Guy Fletcher, English keyboard player, guitarist, and producer 1960 – Bill Harrigan, Australian rugby league referee and sportscaster 1960 – Kristin Scott Thomas, English actress 1961 – Lorella Cedroni, Italian philosopher and theorist (d. 2013) 1961 – Alain Lemieux, Canadian-American ice hockey player and coach 1962 – Héctor Camacho, Puerto Rican-American boxer (d. 2012) 1962 – Gene Anthony Ray, American actor, dancer, and choreographer (d. 2003) 1963 – Ivan Capelli, Italian race car driver and sportscaster 1963 – Michael Chabon, American novelist, short story writer, and screenwriter 1963 – Joe Dumars, American basketball player 1963 – Rich Rodriguez, American football player and coach 1963 – Valerie Taylor, American computer scientist and educator 1964 – Liz McColgan, Scottish educator and runner 1964 – Adrian Moorhouse, English swimmer 1964 – Isidro Pérez, Mexican boxer (d. 2013) 1964 – Pat Verbeek, Canadian ice hockey player and manager 1965 – John C. Reilly, American actor 1965 – Shinichirō Watanabe, Japanese director, producer, and screenwriter 1966 – Éric Cantona, French footballer, manager, and actor 1966 – Ricky Craven, American race car driver and sportscaster 1967 – Tamer Karadağlı, Turkish actor 1967 – Andrey Borodin, Russian-English economist and businessman 1967 – Eric Close, American actor 1967 – Heavy D, Jamaican-American rapper, producer, and actor (d. 2011) 1967 – Carlos Hernández, Venezuelan-American baseball player and manager 1969 – Martin McCague, Northern Irish-English cricketer 1969 – Jacob Rees-Mogg, English politician 1969 – Rich Robinson, American guitarist and songwriter 1969 – Mandar Agashe, Indian music director and businessman 1971 – Kris Draper, Canadian ice hockey player and manager 1972 – Greg Berlanti, American director, producer, and screenwriter 1973 – Rodrigo, Argentinian singer-songwriter (d. 2000) 1973 – Bartolo Colón, Dominican-American baseball player 1973 – Shirish Kunder, Indian director, producer, and screenwriter 1973 – Vladimír Šmicer, Czech footballer and manager 1974 – Sébastien Foucan, French runner and actor 1974 – Masahide Kobayashi, Japanese baseball player and coach 1974 – Magnus Manske, German biochemist and computer programmer, developed MediaWiki 1975 – Will Sasso, Canadian actor and comedian 1975 – Marc Gagnon, Canadian speed skater 1975 – Giannis Goumas, Greek footballer and coach 1975 – Maria Lawson, English singer-songwriter 1976 – Alessandro Cortini, Italian-American singer and keyboard player 1976 – Catherine Cox, New Zealand-Australian netball player 1976 – Silje Vige, Norwegian singer 1977 – Jeet Gannguli, Indian score composer, music director and singer 1978 – Elijah Burke, American wrestler 1978 – Johan Holmqvist, Swedish ice hockey player 1978 – Brad Penny, American baseball player 1978 – Rose, French singer, songwriter and composer 1979 – Tracy McGrady, American basketball player 1979 – Kareem McKenzie, American football player 1980 – Jason Babin, American football player 1980 – Anthony Minichiello, Australian rugby league player 1981 – Andy Lee, Australian comedian, actor, and screenwriter 1982 – Issah Gabriel Ahmed, Ghanaian footballer 1982 – Rian Wallace, American football player 1983 – Custódio Castro, Portuguese footballer 1983 – Pedram Javaheri, Iranian-American meteorologist and journalist 1983 – Woo Seung-yeon, South Korean model and actress (d. 2009) 1984 – Sarah Hagan, American actress 1984 – Dmitri Kruglov, Estonian footballer 1984 – Masaya Takahashi, Japanese wrestler 1985 – Tim Bridgman, English race car driver 1986 – Mark Ballas, American singer-songwriter, guitarist, dancer, and actor 1986 – Giannis Kontoes, Greek footballer 1987 – Guillaume Latendresse, Canadian ice hockey player 1988 – Artem Anisimov, Russian ice hockey player 1988 – Monica Lin Brown, American sergeant 1988 – Billy Gilman, American musician 1988 – Lucian Wintrich, American political artist and White House correspondent 1989 – G-Eazy, American rapper 1989 – Andrew Jordan, English race car driver 1989 – Kalin Lucas, American basketball player 1990 – Mattias Ekholm, Swedish ice hockey player 1991 – Aled Davies, Welsh discus thrower 1991 – Cody Eakin, Canadian ice hockey player 1992 – Marcus Bettinelli, English footballer 1994 – Daiya Seto, Japanese swimmer 1994 – Emily Nicholl, Scottish netball player 1994 – Emily Temple Wood, American 2016 Wikipedian of the Year award 1999 – Tarjei Sandvik Moe, Norwegian actor Deaths Pre-1600 688 – Ségéne, bishop of Armagh (b. c. 610) 1089 – Lanfranc, Archbishop of Canterbury 1136 – Hugues de Payens, first Grand Master of the Knights Templar (b. c. 1070) 1153 – David I of Scotland (b. 1083) 1201 – Theobald III, Count of Champagne (b. 1179) 1351 – Abu al-Hasan Ali ibn Othman, Moroccan sultan (b. 1297) 1408 – Taejo of Joseon (b. 1335) 1425 – Murdoch Stewart, 2nd Duke of Albany, Scottish politician (b. 1362) 1456 – Ambroise de Loré, French commander (b. 1396) 1543 – Nicolaus Copernicus, Polish mathematician and astronomer (b. 1473) 1601–1900 1612 – Robert Cecil, 1st Earl of Salisbury, English politician, Lord High Treasurer (b. 1563) 1627 – Luis de Góngora, Spanish poet and cleric (b. 1561) 1632 – Robert Hues, English mathematician and geographer (b. 1553) 1665 – Mary of Jesus of Ágreda, Spanish Franciscan abbess and mystic (b. 1602) 1734 – Georg Ernst Stahl, German physician and chemist (b. 1660) 1792 – George Brydges Rodney, 1st Baron Rodney, English admiral and politician, 16th Governor of Newfoundland (b. 1718) 1806 – John Campbell, 5th Duke of Argyll, Scottish field marshal and politician, Lord Lieutenant of Argyllshire (b. 1723) 1843 – Sylvestre François Lacroix, French mathematician and academic (b. 1765) 1848 – Annette von Droste-Hülshoff, German author and composer (b. 1797) 1861 – Elmer E. Ellsworth, American colonel (b. 1837) 1872 – Julius Schnorr von Carolsfeld, German painter and illustrator (b. 1794) 1879 – William Lloyd Garrison, American journalist and activist (b. 1805) 1881 – Samuel Palmer, English painter and illustrator (b. 1805) 1901–present 1901 – Louis-Zéphirin Moreau, Canadian bishop (b. 1824) 1908 – Old Tom Morris, Scottish golfer and architect (b. 1821) 1915 – John Condon, Irish-English soldier (b. 1896) 1919 – Amado Nervo, Mexican poet, journalist, and educator (b. 1870) 1929 – Nikolai von Meck, Russian engineer (b. 1863) 1939 – Fanny Searls, American biologist (b. 1851) 1941 – Lancelot Holland, English admiral (b. 1887) 1945 – Robert Ritter von Greim, German field marshal and pilot (b. 1892) 1948 – Jacques Feyder, Belgian actor, director, and screenwriter (b. 1885) 1949 – Alexey Shchusev, Russian architect, designed Lenin's Mausoleum and Moscow Kazanskaya railway station (b. 1873) 1950 – Archibald Wavell, 1st Earl Wavell, English field marshal and politician, 43rd Governor-General of India (b. 1883) 1951 – Thomas N. Heffron, American actor, director, screenwriter (b. 1872) 1956 – Martha Annie Whiteley, English chemist and mathematician (b. 1866) 1958 – Frank Rowe, Australian public servant (b. 1895) 1959 – John Foster Dulles, American soldier, lawyer, and politician, 52nd United States Secretary of State (b. 1888) 1963 – Elmore James, American singer-songwriter and guitarist (b. 1918) 1965 – Sonny Boy Williamson II, American singer-songwriter and harmonica player (b. 1908) 1974 – Duke Ellington, American pianist and composer (b. 1899) 1976 – Denise Pelletier, Canadian actress (b. 1923) 1979 – Ernest Bullock, English organist, composer, and educator (b. 1890) 1981 – Herbert Müller, Swiss race car driver (b. 1940) 1984 – Vince McMahon Sr., American wrestling promoter and businessman, founded WWE (b. 1914) 1988 – Freddie Frith, English motorcycle road racer (b. 1909) 1990 – Arthur Villeneuve, Canadian painter (b. 1910) 1991 – Gene Clark, American singer-songwriter and guitarist (b. 1944) 1992 – Hitoshi Ogawa, Japanese race car driver (b. 1956) 1995 – Harold Wilson, English academic and politician, Prime Minister of the United Kingdom (b. 1916) 1996 – Enrique Álvarez Félix, Mexican actor (b. 1934) 1996 – Joseph Mitchell, American journalist and author (b. 1908) 1997 – Edward Mulhare, Irish actor (b. 1923) 2000 – Kurt Schork, American journalist and scholar (b. 1947) 2000 – Majrooh Sultanpuri, Indian poet and songwriter (b. 1919) 2002 – Wallace Markfield, American author (b. 1926) 2003 – Rachel Kempson, English actress (b. 1910) 2004 – Henry Ries, German-American photographer (b. 1917) 2004 – Milton Shulman, Canadian author and critic (b. 1913) 2004 – Edward Wagenknecht, American critic and educator (b. 1900) 2005 – Carl Amery, German activist and author (b. 1922) 2005 – Arthur Haulot, Belgian journalist and poet (b. 1913) 2005 – Guy Tardif, Canadian academic and politician (b. 1935) 2006 – Henry Bumstead, American art director and production designer (b. 1915) 2006 – Claude Piéplu, French actor (b. 1923) 2006 – Michał Życzkowski, Polish technician and educator (b. 1930) 2008 – Dick Martin, American actor, comedian, and director (b. 1922) 2008 – Jimmy McGriff, American organist and bandleader (b. 1936) 2009 – Jay Bennett, American singer-songwriter, guitarist, and producer (b. 1963) 2010 – Ray Alan, English ventriloquist, actor, and screenwriter (b. 1930) 2010 – Paul Gray, American bass player and songwriter (b. 1972) 2010 – Raymond V. Haysbert, American businessman and activist (b. 1920) 2010 – Petr Muk, Czech singer-songwriter and guitarist (b. 1965) 2010 – Anneliese Rothenberger, German soprano and actress (b. 1926) 2011 – Huguette Clark, American heiress, painter, and philanthropist (b. 1906) 2011 – Hakim Ali Zardari, Indian-Pakistani businessman and politician (b. 1930) 2012 – Klaas Carel Faber, Dutch-German SS officer (b. 1922) 2012 – Kathi Kamen Goldmark, American journalist and author (b. 1948) 2012 – Jacqueline Harpman, Belgian psychoanalyst and author (b. 1929) 2012 – Juan Francisco Lombardo, Argentinian footballer (b. 1925) 2012 – Lee Rich, American production manager and producer (b. 1918) 2013 – Helmut Braunlich, German-American violinist and composer (b. 1929) 2013 – Ron Davies, Welsh footballer (b. 1942) 2013 – Gotthard Graubner, German painter (b. 1930) 2013 – Haynes Johnson, American journalist and author (b. 1931) 2013 – Pyotr Todorovsky, Ukrainian-Russian director and screenwriter (b. 1925) 2014 – David Allen, English cricketer (b. 1935) 2014 – Stormé DeLarverie, known as the "Rosa Parks of the lesbian community" (b. 1920) 2014 – Mahafarid Amir Khosravi, Iranian businessman (b. 1969) 2014 – Knowlton Nash, Canadian journalist and author (b. 1927) 2014 – John Vasconcellos, American lieutenant, lawyer, and politician (b. 1932) 2015 – Dean Carroll, English rugby player (b. 1962) 2015 – Kenneth Jacobs, Australian lawyer and judge (b. 1917) 2015 – Tanith Lee, English author (b. 1947) 2018 – Gudrun Burwitz, daughter of Margarete Himmler and Heinrich Himmler (b. 1929) 2018 – John Bain (TotalBiscuit), English gaming commentator and critic (b. 1984) Holidays and observances Aldersgate Day/Wesley Day (Methodism) Battle of Pichincha Day (Ecuador) Bermuda Day (Bermuda), celebrated on the nearest weekday if May 24 falls on the weekend. Christian feast day: Anna Pak Agi (one of The Korean Martyrs) Donatian and Rogatian Jackson Kemper (Episcopal Church) Joanna Mary, Help of Christians Sarah (celebrated by the Romani people of Camargue) Vincent of Lérins May 24 (Eastern Orthodox liturgics) Commonwealth Day (Belize) Earliest day on which El Colacho tradition can fall, while June 27 is the latest; celebrated on Sunday after Corpus Christi. (Castrillo de Murcia, near Burgos) Independence Day (Eritrea), celebrates the independence of Eritrea from Ethiopia in 1993. Lubiri Memorial Day (Buganda) Saints Cyril and Methodius Day (Eastern Orthodox Church, Julian Calendar) and its related observance: Bulgarian Education and Culture and Slavonic Literature Day (Bulgaria) Saints Cyril and Methodius, Slavonic Enlighteners' Day (North Macedonia) Victoria Day; celebrated on Monday on or before May 24. (Canada), and its related observance: National Patriots' Day or Journée nationale des patriotes (Quebec) References External links BBC: On This Day Historical Events on May 24 Today in Canadian History Days of the year May

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https://en.wikipedia.org/wiki/Poland%20Is%20Not%20Yet%20Lost

Poland Is Not Yet Lost

"" ( "Dąbrowski's Mazurka"), in English officially known by its incipit "Poland Is Not Yet Lost", is the national anthem of Poland. The lyrics were written by Józef Wybicki in Reggio Emilia, Cisalpine Republic in Northern Italy, between 16 and 19 July 1797, two years after the Third Partition of Poland erased the Polish–Lithuanian Commonwealth from the map. It was originally meant to boost the morale of Polish soldiers serving under General Jan Henryk Dąbrowski's Polish Legions that served with Napoleon's French Revolutionary Army in the Italian campaigns of the French Revolutionary Wars. "Dąbrowski's Mazurka", expressing the idea that the nation of Poland, despite lacking an independent state of their own, had not disappeared as long as the Polish people were still alive and fighting in its name, soon became one of the most popular patriotic songs in Poland. The music is an unattributed mazurka and considered a "folk tune" that Polish composer Edward Pałłasz categorizes as "functional art" which was "fashionable among the gentry and rich bourgeoisie". Pałłasz wrote, "Wybicki probably made use of melodic motifs he had heard and combined them in one formal structure to suit the text". When Poland re-emerged as an independent state in 1918, "Dąbrowski's Mazurka" became its de facto national anthem. It was officially adopted as the national anthem of Poland in 1926. It also inspired similar songs by other peoples struggling for independence during the 19th century, such as the Ukrainian national anthem and the song "Hej, Sloveni" which was used as the national anthem of socialist Yugoslavia during that state's existence. In 2021 a draft law says that the anthem’s second and third stanzas will be switched around, with the one starting 'Like Czarniecki to Poznan', which refers to the Polish-Swedish War, now coming before the verse 'We’ll cross the Vistula, we’ll across the Warta'. Etymology It is also known by its original title, "" (, "Song of the Polish Legions in Italy"). English translations of its Polish incipit ("" ) include: "Poland has not yet perished", "Poland has not perished yet", "Poland is not lost", "Poland is not lost yet", and "Poland is not yet lost". Lyrics The original lyrics, authored by Wybicki, are a poem consisting of six quatrains and a refrain quatrain repeated after all but the last stanza, all following an ABAB rhyme scheme. The official lyrics, based on a variant from 1806, show a certain departure from the original text. It misses two of the original stanzas and reverses the order of other two. Notably, the initial verse, "Poland has not yet died" was replaced with "Poland has not yet perished", suggesting a more violent cause of the nation's possible death. Wybicki's original manuscript was in the hands of his descendants until February 1944, when it was lost in Wybicki's great-great-grandson, Johann von Roznowski's home in Charlottenburg during the Allied bombing of Berlin. The manuscript is known today only from facsimile copies, twenty four of which were made in 1886 by Edward Rożnowski, Wybicki's grandson, who donated them to Polish libraries. The main theme of the poem is the idea that was novel in the times of early nationalisms based on centralized nation-statesthat the lack of political sovereignty does not preclude the existence of a nation. As Adam Mickiewicz explained in 1842 to students of Slavic Literature in Paris, the song "The famous song of the Polish legions begins with lines that express the new history: Poland has not perished yet as long as we live. These words mean that people who have in them what constitutes the essence of a nation can prolong the existence of their country regardless of its political circumstances and may even strive to make it real again..." The song also includes a call to arms and expresses the hope that, under General Dąbrowski's command, the legionaries would rejoin their nation and retrieve "what the alien force has seized" through armed struggle. The chorus and subsequent stanzas include heart-lifting examples of military heroes, set as role models for Polish soldiers: Jan Henryk Dąbrowski, Napoleon, Stefan Czarniecki and Tadeusz Kościuszko. Dąbrowski, for whom the anthem is named, was a commander in the failed 1794 Kościuszko Uprising against Russia. After the Third Partition in 1795, he came to Paris to seek French aid in re-establishing Polish independence and, in 1796, he started the formation of the Polish Legions, a Polish unit of the French Revolutionary Army. Bonaparte was, at the time when the song was written, a commander of the Italian campaign of French Revolutionary Wars and Dąbrowski's superior. Having already proven his skills as a military leader, he is described in the lyrics as the one "who has shown us ways to victory." Bonaparte is the only non-Polish person mentioned by name in the Polish anthem. Stefan Czarniecki was a 17th-century hetman, famous for his role in driving the Swedish army out of Poland after an occupation that had left the country in ruins and is remembered by Poles as the Deluge. With the outbreak of a Dano-Swedish War, he continued his fight against Sweden in Denmark, from where he "returned across the sea" to fight the invaders alongside the king who was then at the Royal Castle in Poznań. In the same castle, Józef Wybicki, started his career as a lawyer (in 1765). Kościuszko, mentioned in a stanza now missing from the anthem, became a hero of the American Revolutionary War before coming back to Poland to defend his native country from Russia in the war of 1792 and a national uprising he led in 1794. One of his major victories during the uprising was the Battle of Racławice where the result was partly due to Polish peasants armed with scythes. Alongside the scythes, the song mentioned other types of weaponry, traditionally used by the Polish szlachta, or nobility: the sabre, known in Polish as szabla, and the backsword. Basia (a female name, diminutive of Barbara) and her father are fictional characters. They are used to represent the women and elderly men who waited for the Polish soldiers to return home and liberate their fatherland. The route that Dąbrowski and his legions hoped to follow upon leaving Italy is hinted at by the words "we'll cross the Vistula, we'll cross the Warta", two major rivers flowing through the parts of Poland that were in Austrian and Prussian hands at the time. Music The melody of the Polish anthem is a lively and rhythmical mazurka. Mazurka as a musical form derives from the stylization of traditional melodies for the folk dances of Mazovia, a region in central Poland. It is characterized by a triple meter and strong accents placed irregularly on the second or third beat. Considered one of Poland's national dances in pre-partition times, it owes its popularity in 19th-century West European ballrooms to the mazurkas of Frédéric Chopin. The composer of "Mazurek Dąbrowskiego" is unknown. The melody is most probably Wybicki's adaptation of a folk tune that had already been popular during the second half of the 18th century. The composition used to be erroneously attributed to Michał Kleofas Ogiński who was known to have written a march for Dąbrowski's legions. Several historians confused Ogiński's "" ("March for the Polish Legions") with Wybicki's mazurka, possibly due to the mazurka's chorus "March, march, Dąbrowski", until Ogiński's sheet music for the march was discovered in 1938 and proven to be a different piece of music than Poland's national anthem. The first composer to use the anthem for an artistical music piece is always stated to be Karol Kurpiński. In 1821 he composed his piano/organ Fugue on "Jeszcze Polska nie zginęła" (it was published in 1821 in Warsaw; the first modern edition by Rostislaw Wygranienko was printed only in 2009). However, Karol Lipiński used it in an overture for his opera Kłótnia przez zakład composed and staged in Lviv ca.1812. was the next who arranged "Mazurek Dąbrowskiego" for the piano. The arrangement, accompanied by the lyrics in Polish and French, was published 1829 in Paris. German composers who were moved by the suffering of the November Uprising wove the mazurek into their works. Examples include Richard Wagner's Polonia Overture and Albert Lortzing's Der Pole und sein Kind. The current official musical score of the national anthem was arranged by Kazimierz Sikorski and published by the Polish Ministry of Culture and National Heritage. Sikorski's harmonization allows for each vocal version to be performed either a cappella or together with any of the instrumental versions. Some orchestra parts, marked in the score as ad libitum, may be left out or replaced by other instruments of equivalent musical scale. In 1908, Ignacy Jan Paderewski, later to become the first Prime Minister of independent Poland, quoted the anthem in a disguised way in his Symphony in B minor "Polonia". He scored it in duple meter rather than its standard triple meter. The anthem was quoted by Edward Elgar in his symphonic prelude Polonia, composed in 1915. Regulations The national anthem is, along with the national coat of arms and the national colors, one of three national symbols defined by the Polish constitution. As such, it is protected by law which declares that treating the national symbols "with reverence and respect" is the "right and obligation" of every Polish citizen and all state organs, institutions and organizations. The anthem should be performed or reproduced especially at celebrations of national holidays and anniversaries. Civilians should pay respect to the anthem by standing in a dignified manner; additionally, men should uncover their heads. Members of uniformed services should stand at attention; if their uniform includes headgear and they are not standing in an organized group, they should also perform the two-finger salute. The song is required to be played in the key of F-major if played for a public purpose. Color guards pay respect to the anthem by dipping their banners. History Origin In 1795, after a prolonged decline and despite last-minute attempts at constitutional reforms and armed resistance, the Polish–Lithuanian Commonwealth was ultimately partitioned by its three neighbors: Russia, Prussia and Austria. A once vast and powerful empire was effectively erased from the map while monarchs of the partitioning powers pledged never to use the name "Poland" in their official titles. For many, including even leading representatives of the Polish Enlightenment, this new political situation meant an end of the Polish nation. In the words of Hugo Kołłątaj, a notable Polish political thinker of the time, "Poland no longer belonged to currently extant nations," while historian Tadeusz Czacki declared that Poland "was now effaced from the number of nations." Meanwhile, Polish patriots and revolutionaries turned for help to France, Poland's traditional ally, which was at war with Austria (member of the First Coalition) at the time. Józef Wybicki was among the leading moderate émigré politicians seeking French aid in re-establishing Polish independence. In 1796, he came up with the idea of creating Polish Legions within the French Revolutionary Army. To this end, he convinced General Jan Henryk Dąbrowski, a hero of the Greater Poland campaign of the 1794 Kościuszko Uprising, to come to Paris and present the plan to the French Directory. Dąbrowski was sent by the Directory to Napoleon who was then spreading the French Revolution in northern Italy. In January 1797, the newly created French-controlled Cisalpine Republic accepted Dąbrowski's offer and a Polish legion was formed. Dąbrowski and his soldiers hoped to fight against Austria under Napoleon and, subsequently, march across the Austrian territory, "from Italy to Poland", where they would ignite a national uprising. In early July 1797, Wybicki arrived in Reggio Emilia where the Polish Legions were then quartered and where he wrote the Song of the Polish Legions soon afterwards. He first sung it at a private meeting of Polish officers in the Legions' headquarters at the episcopal palace in Reggio. The first public performance most probably took place on 16 July 1797 during a military parade in Reggio's Piazza del Duomo (Cathedral Square). On 20 July, it was played again as the Legions were marching off from Reggio to Milan, the Cisalpine capital. With its heart-lifting lyrics and folk melody, the song soon became a popular tune among Polish legionaries. On 29 August 1797, Dąbrowski already wrote to Wybicki from Bologna: "soldiers gain more and more taste for your song." It appealed to both officers, usually émigré noblemen, and simple soldiers, most of whom were Galician peasants who had been drafted into the Austrian army and captured as POWs by the French. The last stanza, referring to Kościuszko, who famously fought for freedom of the entire nation rather than the nobility alone, and the "scythes of Racławice", seems to be directed particularly at the latter. Wybicki may have even hoped for Kościuszko to arrive in Italy and personally lead the Legions which might explain why the chorus "March, march, Dąbrowski" is not repeated after the last stanza. At that time Wybicki was not yet aware that Kościuszko had already returned to Philadelphia. Rising popularity The song became popular in Poland as soon as late 1797 and quickly became an object of variations and modifications. A variant from 1798 introduced some stylistic changes, which have since become standard, such as replacing ("not dead") with ("not perished") or ("to Poland from the Italian land") with ("from the Italian land to Poland"). It also added four new stanzas, now forgotten, written from the viewpoint of Polish patriots waiting for General Dąbrowski to bring freedom and human rights to Poland. The ultimate fate of the Polish Legions in Italy was different from that promised by Wybicki's song. Rather than coming back to Poland, they were exploited by the French government to quell uprisings in Italy, Germany and, later, in Haiti where they were decimated by war and disease. Polish national hopes were revived with the outbreak of a Franco-Prussian war (part of the War of the Fourth Coalition) in 1806. Napoleon called Dąbrowski and Wybicki to come back from Italy and help gather support for the French army in Polish-populated parts of Prussia. On 6 November 1806, both generals arrived in Poznań, enthusiastically greeted by locals singing "Poland Is Not Yet Lost". The ensuing Greater Poland Uprising and Napoleon's victory over Russian forces at Friedland led to the creation of a French-controlled Polish puppet state known as the Duchy of Warsaw. "Poland Is Not Yet Lost" was one of the most popular patriotic songs in the duchy, stopping short of becoming that entity's national anthem. Among other occasions, it was sung in Warsaw on 16 June 1807 to celebrate the battle of Friedland, in Kraków as it was liberated by Prince Józef Poniatowski on 19 July 1809, and at a ball in Warsaw on 23 December 1809, the birthday of Frederick Augustus, King of Saxony and Duke of Warsaw. On the occasion of Dąbrowski's name day on 25 December 1810 in Poznań, Dąbrowski and Wybicki led the mazurka to the tune of "Poland Is Not Yet Lost". Although the melody of Wybicki's song remained unchanged and widely known, the lyrics kept changing. With the signing of a Franco-Russian alliance at Tilsit in 1807, the fourth stanza, specifically mentioning Russians as Poland's enemies, was removed. The last stanza, referring to Kościuszko, who had grown suspicious of Napoleon and refused to lend his support to the emperor's war in Poland, met the same fate. The anthem is mentioned twice in Pan Tadeusz, the Polish national epic written by Adam Mickiewicz in 1834, but set in the years 1811–1812. The author makes the first reference to the song when Tadeusz, the main protagonist, returns home and, recalling childhood memories, pulls the string of a chiming clock to hear the "old Dąbrowski's Mazurka" once again. Musical boxes and musical clocks playing the melody of Poland Is Not Yet Lost belonged to popular patriotic paraphernalia of that time. The song appears in the epic poem again when Jankiel, a Jewish dulcimerist and ardent Polish patriot, plays the mazurka in the presence of General Dąbrowski himself. With Napoleon's defeat and the Congress of Vienna in 1815 came a century of foreign domination over Poland interspersed with occasional bursts of armed rebellion. Poland Is Not Yet Lost continued to be sung throughout that period, especially during national uprisings. During the November Uprising against Russia in 1830–1831, the song was chanted in the battlefields of Stoczek, Olszynka Grochowska and Iganie. In peacetime, Polish patriots performed it at homes, official functions and political demonstrations. New variants of the song, of various artistic value and length of life, abounded. At least 16 alternative versions were penned during the November Uprising alone. At times, Dąbrowski's name was replaced by other national heroes: from Józef Chłopicki during the November Uprising to Józef Piłsudski during the First World War to Władysław Sikorski during the Second World War. New lyrics were also written in regional dialects of Polish, from Silesia to Ermland and Masuria. A variant known as Marsz Polonii ("March Polonia") spread among Polish immigrants in the Americas. Mass political emigration following the defeat of the November Uprising, known as the Great Emigration, brought Poland Is Not Yet Lost to Western Europe. It soon found favor from Britain to France to Germany where it was performed as a token of sympathy with the Polish cause. It was also highly esteemed in Central Europe where various, mostly Slavic, peoples struggling for their own independence, looked to the Polish anthem for inspiration. Back in Poland, however, especially in the parts under Russian and Prussian rule, it was becoming increasingly risky to sing the anthem in public. Polish patriotic songs were banned in Prussia in 1850; between 1873 and 1911, German courts passed 44 sentences for singing such songs, 20 of which were specifically for singing Poland Is Not Yet Lost. In Russian Poland, public performance of the song often ended with a police intervention. Choice of national anthem When Poland re-emerged as an independent state after World War I in 1918, it had to make a decision about its national symbols. While the coat of arms and the flag were officially adopted as soon as 1919, the question of a national anthem had to wait. Apart from "Poland Is Not Yet Lost", there were other popular patriotic songs which could compete for the status of an official national anthem. In the Middle Ages, the role of a national anthem was played by hymns. Among them were Bogurodzica (), one of the oldest (11th–12th century) known literary texts in Polish, and the Latin Gaude Mater Polonia ("Rejoice, Mother Poland"), written in the 13th century to celebrate the canonization of Bishop Stanislaus of Szczepanów, the patron saint of Poland. Both were chanted on special occasions and on battlefields. The latter is sung nowadays at university ceremonies. During the Renaissance and the Enlightenment, several songs, both religious and secular, were written with the specific purpose of creating a new national anthem. Examples include the 16th-century Latin prayer ("Prayer for the Commonwealth and the King") by a Calvinist poet, Andrzej Trzeciński, and "" ("Hymn to the Love of the Fatherland") written in 1744 by Prince-Bishop Ignacy Krasicki. They failed, however, to win substantial favor with the populace. Another candidate was "" ("God is Born"), whose melody was originally a 16th-century coronation polonaise (dance) for Polish kings. The official anthem of the Russian-controlled Congress Kingdom of Poland was "" ("National Song to the King's Well-being") written in 1816 by Alojzy Feliński and Jan Kaszewski. Initially unpopular, it evolved in the early 1860s into an important religious and patriotic hymn. The final verse, which originally begged "Save, Oh Lord, our King", was substituted with "Return us, Oh Lord, our free Fatherland" while the melody was replaced with that of a Marian hymn. The result, known today as "" ("God Save Poland"), has been sung in Polish churches ever since, with the final verse alternating between "Return..." and "Bless, Oh Lord, our free Fatherland", depending on Poland's political situation. A national song that was particularly popular during the November Uprising was "Warszawianka", originally written in French as "" by Casimir Delavigne, with melody by Karol Kurpiński. The song praised Polish insurgents taking their ideals from the French July Revolution of 1830. A peasant rebellion against Polish nobles, which took place in western Galicia in 1846 and was encouraged by Austrian authorities who wished to thwart a new uprising attempt, moved Kornel Ujejski to write a mournful chorale entitled "" ("With the Smoke of Fires"). With the music composed by , it became one of the most popular national songs of the time, although it declined into obscurity during the 20th century. In 1908, Maria Konopnicka and Feliks Nowowiejski created "Rota" ("The Oath"), a song protesting against the oppression of the Polish population of the German Empire, who were subject to eviction from their land and forced assimilation. First publicly performed in 1910, during a quincentennial celebration of the Polish–Lithuanian victory over the Teutonic Knights at Grunwald, it too became one of the most treasured national Polish songs. At the inauguration of the UN in 1945, no delegation from Poland had been invited. The Polish pianist Artur Rubinstein, who was to perform the opening concert at the inauguration, began the concert by stating his deep disappointment that the conference did not have a delegation from Poland. Rubinstein later described becoming overwhelmed by a blind fury and angrily pointing out to the public the absence of the Polish flag. He then sat down to the piano and played "Poland Is Not Yet Lost" loudly and slowly, repeating the final part in a great thunderous forte. When he had finished, the public rose to their feet and gave him a great ovation. Over 60 years later, on 2005-09-22, Aleksander Kwaśniewski, President of Poland, said: Influence During the European Revolutions of 1848, "Poland Is Not Yet Lost" won favor throughout Europe as a revolutionary anthem. This led the Slovak poet Samo Tomášik to write the ethnic anthem, "Hej, Sloveni", based on the melody of the Polish national anthem. It was later adopted by the First Congress of the Pan-Slavic Movement in Prague as the Pan-Slavic Anthem. During the Second World War, a translation of this anthem became the national anthem of Yugoslavia, and later, Serbia and Montenegro. The similarity of the anthems sometimes caused confusion during these countries' football or volleyball matches. However, after the 2006 split between the two, neither Serbia nor Montenegro kept the song as its national anthem, instead choosing "Bože pravde" and "Oj, svijetla majska zoro" respectively. The Polish national anthem is also notable for influencing the lyrics of the Ukrainian anthem, "Shche ne vmerla Ukrayina" (Ukraine's glory has not yet perished). The line "Poland is not lost yet" has become proverbial in some languages. For example, in German, noch ist Polen nicht verloren is a common saying meaning "all is not lost". Notes References Further reading External links Poland: "Mazurek Dąbrowskiego" (Poland Is Not Yet Lost), Audio, information, lyrics (archive link) Museum of the National Anthem at Będomin – A museum dedicated to the National Anthem (Polish) The Polish National Anthem – The promotional website "Polska" features a page on the anthem with an instrumental version. Hymn Polski – The website for the Center for Citizenship Education features a page on the anthem than includes vocal and instrumental versions. Virtual Library of Polish Literature – A copy of the oldest known recording of the anthem, 1926 by Ignacy Dygas, is available here. Russian-Records.com – Edison phonograph cylinder record performed by Stanisław Bolewski. It is probably the oldest recording of the anthem. 1797 compositions National anthems National symbols of Poland Polish patriotic songs Italy–Poland relations Polish Legions (Napoleonic period) European anthems Polish nationalism (1795–1918) 1797 in Poland National anthem compositions in F major Mazurka

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https://en.wikipedia.org/wiki/Mahjong

Mahjong

Mahjong or mah-jongg (English pronunciation: , Mandarin Chinese: ) is a tile-based game that was developed in the 19th century in China and has spread throughout the world since the early 20th century. It is commonly played by four players (with some three-player variations found in parts of China, Japan, South Korea and Southeast Asia). The game and its regional variants are widely played throughout Eastern and South Eastern Asia and have also become popular in Western countries. The game has also been adapted into a widespread online entertainment. Similar to the Western card game rummy, Mahjong is a game of skill, strategy, and luck. To distinguish it from mahjong solitaire, it is sometimes referred to as mahjong rummy. The game is played with a set of 144 tiles based on Chinese characters and symbols, although some regional variations may omit some tiles or add unique ones. In most variations, each player begins by receiving 13 tiles. In turn players draw and discard tiles until they complete a legal hand using the 14th drawn tile to form four melds (or sets) and a pair (eye). A player can also win with a small class of special hands. While many variations of mahjong exist, most variations have some basic rules in common including how a piece is drawn and discarded, how a piece is robbed from another player, the use of suits (numbered tiles) and honors (winds and dragons), the basic kinds of melds allowed, how to deal the tiles and the order of play. Beyond these basic common rules, numerous regional variations exist which may have notably different criteria for legal melds and winning hands, radically different scoring systems and even elaborate extra rules. A group of players may introduce their own house rules which can notably change the feel of play. Etymology In Chinese, the game was originally called ()meaning sparrowwhich is still used in some languages in southern China. It is said that the clacking of tiles during shuffling resembles the chattering of sparrows. It has also been suggested that the name came from an evolution of an earlier card game called Madiao from which mahjong tiles were adapted. Most Mandarin-speaking Chinese now call the game (májiàng). Its name is similar in other languages, except in Thai, where it is called (phai nok krachok), a calque meaning "sparrow cards." Old Hong Kong Mahjong rules There are many highly varied versions of mahjong both in rules and tiles used. "Old Hong Kong Mahjong" uses the same basic features and rules as the majority of the different variations of the game. This form of Mahjong uses all of the tiles of the most commonly available sets, includes no exotic complex rules, and has a relatively small set of scoring sets/hands with a simple scoring system. For these reasons Hong Kong mahjong is a suitable variation for the introduction of game rules and play and is the focus of this article. Game pieces and accessories Old Hong Kong Mahjong is played with a standard set of 144 Mahjong tiles (though cards may be used). Sets often include counters (to keep score), dice (to decide how to deal), and a marker to show who the dealer is and which round is being played. Some sets include racks to hold the tiles, especially if they are larger or smaller than standard tiles or have an odd shape. Mahjong sets originating from the United States, Japan or Southeast Asia will likely have extra tiles or specialized markings. The tiles are split into three categories: suited, honors, and bonus tiles. Suited tiles Suited tiles are divided into three suits and each are numbered from 1 to 9. The suits are bamboos, dots, and characters. There are four identical copies of each suited tile totaling 108 tiles. The bamboo suit is also known as "sticks", "strings" or "bams" suit; the first tile usually has a bird (traditionally, a peacock or sparrow) instead of a single bamboo. The dots suit is also known as the "wheels", "circles", "coins", "stones", "marbles" or "balls" suit. The characters suit is also known as the "myriads", "cracks" or "numbers" suit since the top characters are numbers in the Chinese orthography, and the bottom characters (in traditional Chinese characters) are the Chinese orthography of "ten thousand". Honors tiles There are two different sets of Honors tiles: Winds and Dragons. The Winds are East, South, West, and North. In Mahjong, East (not North) is the beginning. The Dragons are Red, Green, and White. The white dragon has a blue or black frame on the face of the piece or in some sets is entirely blank. These tiles have no numerical sequence like the suited tiles (for example the bamboo pieces number 1 to 9). Like the suited tiles, there are four identical copies of each Honors tile, for a total of 28 Honors tiles. Bonus tiles There are two sets of Bonus tiles: Flowers and Seasons. The flower and season tiles play a unique role in the mechanics of the game. When drawn, the Bonus tile is not added into a player's hand but are instead set aside and kept near the player's other tiles for scoring purposes should they win the hand, and an extra tile is drawn in replacement of the Bonus tile. In addition, unlike the suited and honours tiles, there is only a single tile of each Bonus tile, so there are a total of four flower and four season tiles in the set. The tiles have a different artistic rendering of a specific type of flower or season. It is not necessary to know the names or the Chinese characters of each bonus tile, only the number, as this is associated with a specific direction, and the player receives bonus points when the Bonus tile matches the seat direction. There is no relation between the bonus tile "bamboo" flower and the bamboo suit of suited tiles (ex. 4 bamboo). In traditional Chinese culture, the Four Gentlemen are the plum (winter), orchid (spring), bamboo (summer), and chrysanthemum (autumn) which are regarded as the representative plants of those seasons, but people regard it as plum blossom (spring), orchid (summer), chrysanthemum (autumn) and bamboo (winter) now. Choosing table positions and first dealer The dealer is chosen by various means. For example, each player throws dice with the highest count taking the dealer position, second-highest taking south etc. Or one player may place one tile of each wind face down and shuffle them. Each player randomly select one of these tiles and these tiles dictate their wind position. Each player sits down at their respective position (called the wind position) at the table in positions of an inverted compass: East is dealer, the right of the dealer is South, across is West, and the left is North. The order of play is traditionally counter-clockwise. Hands, rounds, and matches A match consists of four rounds, each representing a "prevailing wind," starting with East. Once the first round is completed, a second round begins with South as the prevailing wind, and so on. Wind position is significant in that it affects the scoring of the game. A Mahjong set with Winds in play will usually include a separate prevailing wind marker (typically a die marked with the Wind characters in a holder). In each round at least four hands are played, with each player taking the position of dealer. In the first hand of each round, Player 1 (winner of the dice toss) is East and therefore dealer. In the second hand, Player 2 takes the East position, shifting the seat winds amongst the players counterclockwise (though players do not physically move their chairs). This continues until all four players have been East (dealer). A marker is used to mark which player is East and often the round number. (In sets with racks, a rack may be marked differently to denote the dealer.) Whenever a player in the East position (dealer) wins a hand, or if there is no winner (a draw or "goulash hand"), an extra hand is played with the same seating positions and prevailing wind as in the previous hand. This means that a match may potentially have no limit to the number of hands played (though some players will set a limit of three consecutive hands allowed with the same seat positions and prevailing wind). Example of games: Dealing tiles Shuffling tiles All tiles are placed face down on the table and are shuffled. By convention all players should participate in shuffling using both hands moving the pieces around the table rigorously and loudly for a lengthy period. Tiles may get flipped up during this process and players should flip them facing down as soon as possible to avoid identifying the location of the revealed tiles. Stacking tiles Each player then stacks a row of 18 tiles, two tiles high in front of them (for a total of 36 tiles). Players then push each side of their stack together to form a square wall. Regular players usually place their stacks in a slightly diagonal position (about 20 to 30 degrees anti-clockwise); the right end of their stack is pushed slightly further in to the centre of the table to meet almost the middle of the stack of the player on the right. This creates a smaller square wall the length of about half of each stack, with walls extended away from each corner of the square. The diagonally positioned stacks and a smaller square creates a bigger space for players' tiles and also makes an ergonomic position for drawing tiles from the stack. Drawing tiles The dealer throws three dice in the square wall and sums up the total. Counting anti-clockwise so that the dealer is 1 (or 5, 9, 13, 17), so that south (player to the right) is 2 (or 6, 10, 14, 18), etc., a player's quarter of the wall is chosen. Some house rules may use only two dice but have double throws to increase randomness. In the case of double throws, the player of the chosen wall makes the second throw. Using the same total on the dice (or the total of the two throws), the player whose wall is chosen then counts the stacks of tiles from right to left. (For double throws, the count may extend to the left side player's stack.) This determines the location where the 'deck' of tiles is cut. Starting from the left of the stacks counted, the dealer draws four tiles for himself, and players in anti-clockwise order draw blocks of four tiles until all players have 12 tiles, so that the stacks decrease clockwise. Each player then draws one last tile to make a 13-tile hand. Dealing does not have to be strictly this way and may be done quite differently based on house rules. Tiles may flip over when being dealt and players should agree in advance on how to deal with the problem. Solutions include having the dealer penalised points, shuffling the turned over piece back into the wall somehow, allowing the player to whom the tiles were dealt to take the piece or not (meaning the dealer must take it as his/her 14th piece) or other house rules. Each player now sets aside any Flowers or Seasons they may have drawn and takes turns to draw replacement piece(s) from the wall in the anti-clockwise direction from the dealer. If a player gets any Flowers or Seasons tiles in the replacement draw, the players must wait for the next turn to draw replacement tiles. Game play starts The dealer draws a piece from the wall in clockwise direction, adding it to their hand. Typically, this draw is performed during the initial deal to speed up play. If this does not complete a legal hand, the dealer then discards a piece (throwing it into the middle of the wall with no particular order in mind). Rules Each player in turn, in counterclockwise direction, draws a tile from the wall; as long as the tile drawn is not one of the Bonus tiles, the player proceeds to discard a tile (either the tile just drawn, or a tile in the hand) to maintain a hand of 13. The discarded tile is thrown into the centre and, if desired, the player announces out loud what the piece is. The other players have an opportunity to seize the discarded tile; if no one takes it, the turn continues to the next player. Play continues this way until one player has a legal winning hand and calls out "Mahjong" while revealing their hand. There are four different ways that regular order of play can be interrupted: A Bonus tile (Flower or Season) is drawn A meld (Pong, Kong, or Chow) is made from a discard Going Mahjong (declaring a winning hand) Robbing a Kong During play, each player's hand should always be 13 tiles (meaning in each turn a tile must be picked up and another discarded). The count of 13 tiles do not include any Bonus tiles (Flowers and Seasons), which are set to the side, nor does it include the fourth added piece of a Kong. If a player is seen to have fewer or more than 13 tiles in their hand outside of their turn they are penalised. Legal hand A winning hand consists of 14 tiles. Since players always have 13 tiles in their hand during play, they must win by either drawing a piece from the wall that completes a 14-tile hand ("winning from the wall") or claiming a discard from another player which completes a 14-tile hand ("winning by discard"). The winning hand is made of four melds (a specific pattern of three pieces) and the eyes (a pair of identical pieces). The exceptions to this rule are the special hands listed below. Most players play with a table minimum, meaning a winning hand must score a minimum number of points (which can be seen in the scoring section). In Hong Kong Mahjong the most common point set is three but can be higher or lower depending on house rules. Melds Melds are groups of tiles within the player's hand, consisting of either a Pong (three identical tiles), a Kong (four identical tiles), a Chow (three suited tiles all of the same suit, in numerical sequence), or Eyes (two identical tiles needed in a winning hand). Melds may be formed by drawing a tile from the wall, or by seizing another player's discard. There are rules governing which player has priority for a discard, and whether the meld should be exposed (displayed to all players) or remain concealed, depending on the manner in which the meld is formed. Pongs are a set of three identical tiles. For example: You may form a Pong with any suited or honors tile. Bonus tiles (Flowers or Seasons) cannot be used to form a Pong because they are set aside and there are not three identical bonus tiles in the set. The tiles must be identical (you cannot mix suits). A Pong may either be concealed (formed by drawing tiles) or exposed (formed by seizing another player's discard). Kong is a complete set of four identical tiles. For example: Consider a Kong the same as a Pong with an additional tile to make a complete set of four. There are three ways to form a Kong. Concealed Kong – If a player holds three matching tiles (concealed Pong) and upon drawing a tile completes a set of four they may declare a Kong. They do so by revealing the meld and placing two pieces in the middle face up and two pieces on the ends face down. Exposed Kong – If a player can use a discarded tile to complete three matching tiles (concealed Pong) in their hand, he can take the piece and reveal an "exposed kong" or "melded kong". The player reveals his three pieces face up and places the stolen discard on top of the middle tile, or face down next to the three other face up pieces. Exposed Kong from Exposed Pong – If a player already has a melded Pong and then later in the game draws the fourth piece from the wall, he may announce (then or later in the game) a Kong by placing the fourth tile on top of the middle piece of the melded Pong, or all four tiles placed face up in a row. If a Pong has been melded a player cannot steal the 4th piece if another player discards it, it must be drawn. Whenever a Kong is formed, that player must draw an extra tile from the end of the wall and then discard a tile. The fourth piece of a Kong is not considered one of the 13 tiles a player must always have in their hand. A Kong may not be formed from Bonus tiles (Flowers/Seasons), since the set does not include four identical tiles. Kongs are worth collecting to score more points and deprive opponents of the opportunity to obtain specific tiles. Chow is a meld of three suited tiles in sequence. For example: The meld must be in absolute numerical sequence and all in the same suit. Players cannot skip numbers or meld from the 8 or 9 to 1 or 2. Honors tiles cannot be used to make Chows because they have no numerical value, and Bonus tiles (Flowers and Seasons) also cannot be used to make a Chow. A player can steal a discard to form a Chow only from the player whose turn was immediately before theirs; however, a player forming a Chow from a seized piece has the lowest priority for that tile. Any other player who needs that tile to make a Pong, make a Kong, or to win may seize that piece instead. Like the Pong, the Chow is either concealed (formed by drawing tiles) or exposed (formed by seizing the prior player's discard). Eyes (also known as a pair) are two identical tiles which are an essential part of a legal winning hand. A piece cannot be stolen (melded) to form a pair of eyes unless the player simultaneously completes a legal winning hand. For example: Interruption of play The regular anti-clockwise order of turns may be interrupted for four events: 1. Flower or Season Whenever a player draws a flower or season, it is announced and then placed to the side (it is not considered a part of the 13-tile hand, but in the event that player wins, he may earn bonus points for them) and the last tile of the wall is drawn as a replacement tile so that the player has the 14 pieces needed before their discard. This may happen successively in a player's turn. 2. Melding another player's discard When a player discards a tile, other players may steal the tile to complete a meld. Stealing tiles has both advantages (quickly forming a winning hand and scoring extra points) and disadvantages (being forced to reveal part of one's hand to other players and not being able to change the meld once declared). When a meld (Pong, Kong, or Chow) is declared through a discard, the player must state the type of meld to be declared and expose the meld by placing the three (or four) tiles face up. The player must then discard a tile, and play continues to the right. If the player who melds a discard is not directly after the discarder (in order of play), one or two players will essentially miss their turn as play continues anti-clockwise from the player who declared the meld. If multiple players call for a discarded tile, priority for the discard depends on the declared action of the player stealing the discard. Highest priority goes to the player who needs the discarded tile to win the hand. A player may take the tile to win the hand from any other player. Next priority goes to the player who declares a Pong or Kong using the discard. A player who calls for a Pong or Kong may take the discard from any other player. Only one player can be in this position because there are only four of any tile in a Mahjong set. Last priority goes to the player who declares a Chow using the discard. Players may only call for a Chow from the discard of the player immediately prior to them unless the tile is the final one required to win the hand. 3. Winning a hand The act of winning a hand interrupts play to assess the validity of the hand won. Upon confirmation, the player is awarded the hand's value per the specific game's rule. From a discard If at any point in the game a player can use another player's discard to complete a legal hand (and with the agreed minimum points), they declare a win and reveal their winning hand. This ends the hand, and scoring commences. If more than one player can use a discard to win the hand, multiple ways can handle the situation based on agreed table rules: The players might count the points they would win with the discard and the winner is the one with the higher score, the winner might simply be the player closest to the discarder in order of turn, or multiple players may be granted the win simultaneously. From the wall Alternatively, a player may also win by drawing a tile that completes a legal hand. This is called "winning from the wall". In Hong Kong mahjong, winning from the wall doubles the number of base points each loser must pay. False Mahjong Technically, the declaration for winning a hand may be done at anytime. However, the player must have a complete and legal hand. Otherwise, the player is penalized. The penalty depends on table rules. The player may forfeit points to the other players. Another potential penalty is the player who called out the false mahjong must play the rest of the hand with their tiles face up on the table so other players can see them (open hand). Some methods apply the penalty at the end of the entire game. Again, the table rules dictate the enforcement of the penalty. 4. Robbing a Kong A rarely occurring and high-scoring feature of Hong Kong Mahjong is a move called robbing the Kong. If a player declares a Kong by adding a fourth piece to a melded Pong but another player can use that piece to complete a hand, the completing player takes priority to go Mahjong (win the hand) and may steal that piece from the player who intended to declare the Kong. Examples of winning hands Below are two examples of winning hands. A winning hand must consist of four melds (Pongs, Kongs, or Chows) and a pair (eyes) and must also score the agreed table minimum. – – – – Hand formed with four Pongs and the eyes (pair) of East wind. Only bamboo is used (no other suited tiles), scoring extra points (clean hand). No chows are used (an all Pong/Kong hand scores extra points). – – – – A high-scoring hand formed using only circles, known as a pure hand. Hand is made of Chows, Pongs and the eyes of circles. Most players include table variations in their games, of which some non-standard are included. The hands of seven different pairs and 13 orphans are examples which do not have four melds and the eyes. They are described in more detail below. Repeated hands If the dealer wins the hand, he will remain the dealer and an extra hand is played in addition to the minimum 16 hands in a match. An extra hand is also played if there is no winner by the time all the tiles in the wall have been drawn. When there is no winner it is known as a "goulash hand". Depending on table rules, the winner of the next game may take an agreed number of points from each player, carrying over the points from the non-winning hand to the winning one. If there are two or three goulash hands in a row then the winner would collect a considerable number of points from each player on top of their scoring hand. Because extra hands may be played every time a dealer wins or if there is a goulash hand, a match of 16 hands can easily become a match of 20 or even much more. As table rules add a large amount of flexibility for players, they can choose to disregard the rule of extra hands and pass on the dealership regardless of who wins or if it results in a goulash hand. This puts a maximum estimated limit on the game duration and provides some amount of predictability. Rhythm of play Players may agree on table rules if the pace of the game is brisk or leisurely. For brisk games players may agree that a couple seconds after a discard are allowed for a "window of opportunity" before the next player picks up from the wall. Usually it is agreed once the next player has waited the duration of the "window of opportunity" and draws a tile from the wall, the previous discard is lost and cannot be claimed. Scoring Old Hong Kong scoring is relatively simple. There is only one winner (or if there is a draw the hand is replayed). The winner must have a legal hand that meets the minimum faan points agreed to in advance (not including any bonus points). Only the winner scores, the other players pay the winner various sums. After each hand ends, the winner counts all of his or her faan points. Faan points depend on: The composition of the entire hand How the hand was won Bonus tiles Special patterns A few other special criteria. In order to win, a player needs to have at least the minimum faan value agreed in advance (often 3). Bonus tiles and a few other elements are not included in the minimum faan value a player needs to form a legal winning hand. (i.e. in a three faan minimum game, if a player has two faan points and one bonus point, the player has not met the proper requirements to win and will need to gain another faan point before calling mahjong. Though the bonus points cannot be included in the minimum points needed to win, they are included in the overall score after a player wins The other players do not score their hand. Once the winner has added his or her points (faan points plus bonus points) they must be converted into base points (the chart is below). These base points represent how much the opponents pay to the winner Players then pay the winner (in money or when not gambling with "chips or points") based on three factors: The base points (faan points and bonus points converted into a payment unit) If the player won from the wall (doubles the points) If the player was the dealer (doubles the points). Concealed vs. revealed meld and hand A concealed meld is one that contains no tiles stolen from another player's discard. A concealed hand is one made up of only concealed melds. Many variations distinguish between a concealed hand (winning from the wall) and a semi concealed hand (the last tile is a stolen discard). In most mahjong variations having a concealed hand can be valuable in scoring. Hong Kong mahjong doesn't award concealed melds/hands as generously as others. Concealed hands only the case with a few limit hands or half-limit hands (thirteen orphans, heavenly gates, four concealed pongs) as well as a complete hand (seven pairs) and over several melds (three concealed pongs). Faan value Basic faan value A winning hand must include an agreed minimum amount of faan value (often 3). Some examples of scoring include: Bonus faan A player only scores a bonus faan for Flowers or Seasons if it is their own flower or season (East=1, South=2, West=3 and North=4) or if the player has all four Flowers or all four Seasons (scoring 5 faan in total). Payment The losers pay the winning player points based on several criteria and depending on whether the game is for fun or for money. How points are reckoned is agreed by players beforehand. For example, they can keep a tally, exchange chips or pay one another with money. The faan value of a hand is converted into base points which are then used to calculate the points the losers pay the winner. The table is progressive, doubling the number of base points when reaching a certain faan point target. The following is the Old Hong Kong simplified table, for other tables see Hong Kong Mahjong scoring rules. This table is based on play where 3 faan is the minimum needed in order to win with a legal hand. If a player has 3 faan then his hand is worth one base point. A winning hand with 9 faan is worth four base points. Losing players must give the winning player the value of these base points. The following special cases result in doubled base points: If the winner wins from the wall his base points are doubled If the hand was won by discard, the discarder doubles the amount he owes the winner If the winner is east all losers double the basepoints If east player is a losing player he pays double the points to the winner. If two of these criteria apply to any player, he must double and then redouble the points owed to the winner. Examples Hong Kong Mahjong is essentially a payment system of doubling and redoubling where winning from the wall adds great value to the final payment and where the dealer is highly rewarded or penalised if they win or lose. Limit hands In Hong Kong Mahjong there are a series of "limit hands". These are exceptional hands, difficult to obtain and are very valuable in point scoring. As many table rules put a limit on the number of points a winners hand can score, full limit hands score that maximum. Table rules dictate if these rare and special hands are allowed, which ones, and the limit for scoring. A common scoring limit is 64 points, which is the highest base points doubled twice. A winner receives the scoring limit from each player without any doubling. Some limit hands by necessity must be completely concealed (not discards used) or semi-concealed (the only discard used is the one needed to go mahjong). This includes the 13 orphans, 4 concealed pongs, heavenly hand and earthly hand. It is usually expected that the heavenly gates hand be concealed or semi-concealed. As for the dragon limit hands and the great winds, table rules dictate if the hand must be concealed or not. Some table rules claim that a semi-concealed hand (winning from a discard) scores a half-limit. Some groups also play with the "great Flowers" rule. If a player picks up all four Flowers and all four Seasons during their hand, they instantly win the hand and receive the maximum points from all of the players. This is exceptionally rare. In all the hands that require pongs, each pong can be replaced by the corresponding kong. Other examples of high-scoring hands Variations Variations may have far more complicated scoring systems, add or remove tiles, and include far more scoring elements and limit hands. In many places, players often observe one version and are either unaware of other variations or claim that different versions are incorrect. In mainland China alone, there are over thirty variants. Many variations today differ only by scoring: Chinese variants Changsha Mahjong is widely played in Hunan Province. Like Wuhan Mahjong, players need to obtain special Jong consisting of only tiles of two, five or eight. Changsha Mahjong forbids using winds and some special tiles, those tiles are first drawn out from the table when playing. Winners each round get a special drawing session for bonuses, usually doubling the score. Chinese classical Mahjong is the oldest surviving variety of Mahjong and was the version introduced to America in the 1920s under various names. It has a small, loyal following in the West, although few play it in Asia. All players score and it is possible to score higher than the winner. Competition Mahjong is an international standard founded by All-China Sports Federation in July 1998 that some Mahjong societies have adopted for competition play and in some cases for all play. It includes a large variety of different scoring rules in a way that emphasizes strategy and calculation ability. Fujian Mahjong, thirteen tile hands. Certain tiles can be wild. No dragons. Winds are treated as bonuses. Harbin Mahjong, popular in northeastern China, using only 108 suit and 4 red dragon tiles. The player's hand must meet a set of few conditions (e.g. at least one chow / pong, at least one terminal or red dragon, etc.) and be declared "ready" in order to win, with points earned by discard or self-draw and a bonus tile revealed when the player wins. Hong Kong Mahjong or Cantonese Mahjong is a more common form of Mahjong, differing in minor scoring details from the Chinese Classical variety. It does not allow multiple players to win from a single discard. Shenyang Mahjong using 13 hands in a game, and Shenyang Mahjong has a really fast speed on playing, which allegedly might be said in some regard to perhaps match the personality of north-east people in China. Also in Shenyang Mahjong, the player must have Bamboos, Characters, Circles and number one or nine in his hand. In addition, the players have to Pong before they Chow, so there is no chance to win even if some players win at the first time they have their hands in hand. is a growing variety, particularly in southern China, disallowing chi melds, and using only the suited tiles. Play continues until a loser is decided or a draw. It can be played very quickly. , or Lisi (), the players must win with the first four blocks drawn which are placed separately in front of other. These four blocks cannot be touched until the player has a ready hand. is the variety prevalent in Taiwan and involves hands of sixteen tiles (as opposed to the thirteen-tile hands in other versions), features bonuses for dealers and recurring dealerships, and allows multiple players to win from a single discard. using normally seven jokers, with special scoring such as joker-free, joker-waiting-pair, catch-5, dragon, joker-suited-dragon. Wuhan Mahjong is growing rapidly and become popular in southern China. It is different from other parts of China such that it has a tile that can be used as everything called Laizi, and the player has to have a set of special two tiles, namely two, five, eight, as prerequisite for winning. Another variation has become the new trend. Special tiles need to be discarded. Xiangyang Mahjong is played with 3 players, and without Winds, Seasons, Flowers and one suit of Dots, Bamboo and Characters, It places special emphasis on the 5 tile giving extra points for any hand made using a 5 tile. Other variants American Mahjong is a form of Mahjong standardized by the National Mah Jongg League and the American Mah-Jongg Association. It uses joker tiles, the Charleston, plus melds of five or more tiles, treats bonus tiles as Honors, and eschews the Chow and the notion of a standard hand. Legal hands are changed annually. Purists claim that this makes American Mahjong a separate game. In addition, the NMJL and AMJA variations, which have minor scoring differences, are commonly referred to as Mahjongg or mah-jongg (with 2 Gs, often hyphenated). Filipino Mahjong, sixteen tile hands. Certain tiles can be wild. Honors are treated as bonuses. Japanese classical Mahjong is still used in tournaments. It is closer to the Chinese classical scoring system but only the winner scores. Japanese Mahjong is a standardized form of Mahjong in Japan and South Korea, and is also found prevalently in video games. In addition to scoring changes, the rules of rīchi (ready hand) and dora (bonus tiles) are unique highlights of this variant. In addition, tile discards are specifically arranged in front of each player by discard order, to take discarded tiles into account during play. Some rules replace some number 5 tiles with red tiles so that they can eventually get more value. North Korean Mahjong or just Korean Mahjong is unique in many ways and is an excellent version for three players. One suit is omitted completely (usually the Bamboo set or 2–8 of bamboo) as well as the Seasons. The scoring is simpler and the play is faster. No melded chows are allowed and concealed hands are common. Riichi (much like its Japanese cousin) is an integral part of the game as well. The variant is popular in North Korea. Pussers bones is a fast-moving variant developed by sailors in the Royal Australian Navy. It uses an alternative vocabulary, such as Eddie, Sammy, Wally, and Normie, instead of East, South, West, and North respectively. Singaporean-Malaysian Mahjong are two similar variants with much in common with Hong Kong mahjong. Unique elements of Singaporean-Malaysian Mahjong are the use of four animal bonus tiles (cat, mouse, cockerel, and centipede) as well as certain alternatives in the scoring rules, which allow payouts midway through the game if certain conditions (such as a kong) are met. Melds may also be presented in a form different from most other variations. South African Mahjong is a variant of Cantonese Mahjong. It is very similar in terms of game play and follows most of the rules and regulations of Cantonese Mahjong. However, there are some minor differences in scoring, e.g. the limit on the maximum points a hand can be rewarded is three or four fan depending on the house rules. A chicken hand (gai wu) is normally considered a value hand. Depending on the house rules Flowers may also be used to boost scoring. Thai Mahjong has eight specialized jokers with eight extra flowers and eight animals for a total of 168 tiles. Vietnamese Mahjong has the same eight specialized jokers but with only eight different extra flowers for a total of 160 tiles. Modern variant triplicates or quadruplicates the jokers for a total of 176 or 184 tiles. Western classical Mahjong is a descendant of the version of Mahjong introduced by Babcock to America in the 1920s. Today, this term largely refers to the "Wright-Patterson" rules, used in the U.S. military, and other similar American-made variants that are closer to the Babcock rules. Three-player Mahjong (or 3-ka) is a simplified three-person Mahjong that involves hands of 13 tiles (with a total of 84 tiles on the table) and may use jokers depending on the variation. Any rule set can be adapted for three players; however, this is far more common and accepted in Japan, Korea, Malaysia and the Philippines. It usually eliminates one suit entirely, or tiles 2–8 in one suit leaving only the terminals. It needs fewer people to start a game and the turnaround time of a game is short—hence, it is considered a fast game. In some versions there is a jackpot for winning in which whoever accumulates a point of 10 is considered to hit the jackpot or whoever scores three hidden hands first. The Malaysian and Korean versions drop one wind and may include a seat dragon. Equipment Tables Mahjong playing surfaces are typically square and small enough to be within arm's length of all equipment. The edges are raised to prevent tiles from sliding off and the surface is covered in felt to limit wear on the tiles. Automatic dealing tables, often used for high stakes playing and tournaments, are able to shuffle tiles, build walls, and randomize dice. It is an elaborate device built into a table which uses two alternating sets of tiles. It prepares one wall while the players play one hand. After the hand is finished the tiles are dropped into the table and a new wall raises upwards. Tiles The following chart shows the most generic set of tiles There are variations that feature specific use of tiles. Some three-player versions remove the North Wind and one Chinese provincial version has no Honors. Korean Mahjong removes the bamboo suit or at least its numbers 2–8 so that terminals can be used. Japanese Mahjong rarely uses Flowers or Seasons. The Seasons are removed in Korean Mahjong, while many Southeast Asian sets have more flower series. Wild cards and jokers Some mahjong variants accept wildcard tiles. The wildcard tiles are decided at the beginning of the game by choosing one random tile. The wild card could be the immediately following tile on the wall, after distributing tiles to all players, or it could also be separately decided by a dice throw. Wildcard tiles can't be discarded and can only replace tiles in Chows. Wildcard tiles cannot replace tiles in Pongs and Kongs. For example, if a character 4 is chosen, then character 4 and the next sequential tile, character 5, can be used as wild cards in this round. (When the wildcard indicator is chosen and exposed, only 3 tiles remain of the same denomination, so the next tile in the suit will also be used as a wildcard, adding to 7 wildcard tiles for 4 players.) Also, if a tile numbered 9 is the indicator, the suits circle back to 1, after 9. Thus, the number 9 and 1 are wild cards. Also, if the chosen tile is not in the suited tiles, the wild cards are decided in rules: The bonus tiles are not available for wild cards. A feature of several variations of Mahjong, most notably in American mahjong, is the notion of some number of Joker tiles. They may be used as a wild card: a substitute for any tile in a hand, or, in some variations, only tiles in melds. Another variation is that the Joker tile may not be used for melding. Depending on the variation, a player may replace a Joker tile that is part of an exposed meld belonging to any player with the tile it represents. Rules governing discarding Joker tiles also exist; some variations permit the Joker tile to take on the identity of any tile, and others only permit the Joker tile to take on the identity of the previously discarded tile (or the absence of a tile, if it is the first discard). Joker tiles may or may not affect scoring, depending on the variation. Some special hands may require the use of Joker tiles (for example, to represent a "fifth tile" of a certain suited or honor tile). In American Mahjong, it is illegal to pass Jokers during the Charleston. Flowers Japanese rule sets discourage the use of Flowers and Seasons. Korean rules and three-player Mahjong in the Korean/Japanese tradition use only Flowers. In Singapore and Malaysia an extra set of bonus tiles of four animals are used. The rule set includes a unique function in that players who get two specific animals get a one-time immediate payout from all players. In Taiwanese Mahjong, getting all eight Flowers and Seasons constitutes an automatic win of the hand and specific payout from all players. Four of the flower tiles represent the four noble plants of Confucian reckoning: 🀢 plum, 🀣 orchid, 🀥 chrysanthemum, and 🀤 bamboo. The other 4 flower tiles (or season tiles) represent Seasons: 🀦 spring, 🀧 summer, 🀨 autumn, and 🀩 winter. These animal tiles are used in Thailand, Malaysia, Singapore and local variations. They represent the cat, mouse, rooster and centipede. Like flower tiles, they also function as bonus tiles. However, as they have no corresponding seat position, any player who draws one of these gets a bonus point. Walls All tiles are placed face down and shuffled. Each player then stacks a row of tiles two tiles high in front of him, the length of the row depending on the number of tiles in use: 136 tiles: 17 stacks for each player Suits of circles, bamboos, and characters + winds + dragons 144 tiles: 18 stacks for each player 148 tiles: 19 stacks for dealer and player opposite, 18 for rest 152 tiles: 19 stacks for each player Dice, markers, and counting pieces Depending on the variation, two or three dice are usually used to decide what part of the wall to start dealing from. They are six-sided dice, traditionally but not necessarily Chinese dice with red one and four pips. The dealer marker is a round or square object that the dealer places to the side to remind players who the dealer is. The wind marker may be used which indicates the current prevailing wind. In some cases the dealer marker and the wind marker are represented by one large marker, usually a small wheel where one can swivel the outer circle to indicate the prevailing wind (which the dealer holds onto), a cube with the four winds placed onto four of the sides which can be placed in a hollow square (the dealer holds onto it), or a cylinder locked into frame which can be rolled to expose the wind on the top. Japanese mahjong, especially in a gambling environment, may optionally use four yakitori markers to indicate which players have not won a hand yet and has to pay a penalty. There are a variety of counting pieces used in different countries. They range from Chinese or Japanese counting sticks (thin sticks with various dots on them to represent various points), jetons, play money, paper and pencil, or various apps on touchscreen devices used to calculate and keep scores. Rules Japanese and Korean Mahjong have some special rules. A player cannot win by a discard if that player had already discarded that piece, where players' discards are kept in neat rows in front of them. Players may declare ready, meaning that they need one tile to win, cannot change their hand and win extra points if they win. Some rules may replace some of the number 5 tiles with red tiles, as they can earn more points. Korean Mahjong does not allow melded (stolen) chows. Taiwanese Mahjong adds three tiles to a hand requiring a 5th set to be formed, making a clean hand or all Pong hand very difficult to procure. American Mahjong has distinctive game mechanics and the article on American Mahjong details these. Some differences include many special patterns, a different scoring system and the use of jokers and five-of-a-kind. Charleston In the American variations it is required that, before each hand begins, a Charleston be enacted. In the first exchange, three tiles are passed to the player on one's right; in the next exchange, the tiles are passed to the player opposite, followed by three tiles passed to the left. If all players are in agreement, a second Charleston is performed; however, any player may decide to stop passing after the first Charleston is complete. The Charleston is followed by an optional pass to the player across of one, two, or three tiles. The Charleston, a distinctive feature of American Mahjong, may have been borrowed from card games such as Hearts. Hands Many variations have specific hands, some of which are common while some are optional depending on regions and players. One example is the Pure Green hand made of chows or Pongs using 2, 3, 4, 6, 8 of bamboo and green dragon. Ready hands When a hand is one tile short of winning (for example: , waiting for: , , or , as can be the eyes), the hand is said to be a ready hand, or more figuratively, "on the pot". The player holding a ready hand is said to be waiting for certain tiles. It is common to be waiting for two or three tiles, and some variations award points for a hand that is waiting for one tile. In 13-tile Mahjong, the largest number of tiles for which a player can wait is 13 (the thirteen wonders, or 13 orphans, a nonstandard special hand). Ready hands must be declared in some variations of Mahjong, while other variations prohibit the same. Some variations of Mahjong, most notably Japanese and Korean ones, allow a player to declare . A declaration of rīchi is a promise that any tile drawn by the player is immediately discarded unless it constitutes a win. Standard requirements for rīchi are that the hand be closed or have no melds declared (other than a concealed Kong) and that players already have points for declaration of rīchi. A player who declares rīchi and wins usually receives a point bonus for their hand directly, and a player who won with rīchi also has the advantage to open the inner dora which leads to higher possibilities to match such a card, thus has more chance to grant additional bonus. However, a player who declares rīchi and loses is usually penalised in some fashion. Declaring a nonexistent rīchi is also penalised in some way. In some variations, a situation in which all four players declare a rīchi is an automatic drawn game, as it reduces the game down to pure luck, i.e., who gets their needed tile first. Draws If only the dead wall remains (or if no dead wall exists and the wall is depleted) and no one has won, the hand is drawn or "goulashed". A new hand begins, and depending on the variant, the Game Wind may change. For example, in most playing circles in Singapore, if there is at least one Kong when the hand is a draw, the following player of the dealer becomes the next dealer; otherwise, the dealer remains dealer. Japanese Mahjong has a special rule called sanchahō, which is, if three players claim the same discard in order to win, the hand is drawn. One reason for this is that there are cases in which bars of 1,000 points for declaring rīchi cannot be divided by three. The rule is treated the same as "abortive draws". Abortive draws In Japanese Mahjong, rules allow abortive draws to be declared while tiles are still available. They can be declared under the following conditions: On a player's first turn when no meld has been declared yet, if a player has nine different terminal (also known as major) or honor tiles, the player may declare the hand to be drawn (for example, , but could also go for the nonstandard thirteen wonders hand as well). Four Winds' barrier: On the first turn without any meld declarations, if all 4 players discard the same Wind tile, the hand is drawn. Yonin rīchi: If all four players declare rīchi, the hand is drawn. Four Kongs' abort: The hand is drawn when the fourth Kong is declared, unless all four Kongs were declared by a single player. Still, the hand is drawn when another player declares a fifth Kong. Scoring Scoring in Mahjong involves points, with a monetary value for points agreed upon by players. Although in many variations scoreless hands are possible, many require that hands be of some point value in order to win the hand. While the basic rules are more or less the same throughout Mahjong, the greatest divergence between variations lies in the scoring systems. Like the rules, there is a generalized system of scoring, based on the method of winning and the winning hand, from which Chinese and Japanese base their roots. American Mahjong generally has greatly divergent scoring rules, as well as greatly divergent general rules. Because of the large differences between the various systems of scoring (especially for Chinese variants), groups of players will often agree on particular scoring rules before a game. Points Points (terminology of which differs from variation to variation) are obtained by matching the winning hand with different criteria scoring different values. The points obtained may be modified into scores for each player using some (typically exponential) functions. Some criteria may be also in terms of both points and score. In many variations the dealer receives no scoring bonus and does not maintain his turn by winning or a dead hand. In classical Mahjong all players score points. Points are given for sets and hand composition and winning bonuses, doubled and redoubled for basic patterns. Sometimes a loser may score more points than a winner. Japanese Mahjong has a complex scoring system with several stages of scoring, rules and exceptions, evening out scores and bonus points at the end of a match. Korean Mahjong has a simple scoring system where only winner scores without any form of doubling. Some variations give points for concealed hands, in which case no melds are made except by winning on a discard. In Old Hong Kong Mahjong: Only the winner scores points. Winning hands are scored by totaling the point value of each element in the hand. Points are distinct from the actual payment received from each player. The winner receives points (also known as faan among some players) for: Individual melds, The composition of the entire hand, How the hand was won, Bonus tiles, Special patterns, A few other special criteria. In order to win, a player needs to have at least the minimum points agreed in advance (often 3). Bonus points are separate from the minimum points a player needs to win. If a player goes Mahjong with a legal and minimum hand, his hand is scored by adding his points and bonus points together. The payment received from each player depends on three factors: The point value of the hand, If the player won from a discard or from the wall, and If the player was the dealer or not. Comparison Mahjong solitaire A single player game employs the tiles of mahjong, usually played on computers or devices. Gameplay is entirely unrelated to mahjong or its variations and is a recent invention. A two-player version was published by Nintendo. The game involves stacking tiles face up in various elaborate patterns and removing uncovered matching tiles at the end of rows. Competition In 1998, in the interest of dissociating illegal gambling from Mahjong, the China State Sports Commission published a new set of rules, now generally referred to as Chinese Official rules or International Tournament rules (see Guobiao Majiang). The principles of the new, wholesome Mahjong are no gambling, no drinking, and no smoking. In international tournaments, players are often grouped in teams to emphasize that Mahjong from now on is considered a sport. The new rules are highly pattern-based. The rulebook contains 81 combinations, based on patterns and scoring elements popular in classic and modern regional Chinese variants; some table practices of Japan have also been adopted. Points for flower tiles (each flower is worth one point) may not be added until the player has scored eight points. The winner of a game receives the score from the player who discards the winning tile, plus eight basic points from each player; in the case of zimo (self-drawn win), he receives the value of this round plus eight points from all players. The new rules were first used in an international tournament in Tokyo, where, in 2002, the first global tournament in mahjong was organized by the Mahjong Museum, the Japan Mahjong Organizing Committee, and the city council of Ningbo, China. One hundred players participated, mainly from Japan and China, but also from Europe and the United States. Mai Hatsune, from Japan, became the first world champion. The following year saw the first annual China Mahjong Championship, held in Hainan; the next two annual tournaments were held in Hong Kong and Beijing. Most players were Chinese; players from other nations attended as well. In 2005, the first Open European Mahjong Championship was held in the Netherlands, with 108 players. The competition was won by Masato Chiba from Japan. The second European championship in Copenhagen(2007) was attended by 136 players and won by Danish player Martin Wedel Jacobsen. The first Online European Mahjong Championship was held on the Mahjong Time server in 2007, with 64 players, and the winner was Juliani Leo, from the U.S., and the Best European Player was Gerda van Oorschot, from the Netherlands. The Third Open European Mahjong Championship 2009 at Baden/Vienna, Austria, was won by Japanese player Koji Idota, while runner-up Bo Lang from Switzerland became European Champion. There were 152 participants. In 2006, the World Mahjong Organization (WMO) was founded in Beijing, China, with the cooperation of, amongst others, the Japan Mahjong Organizing Committee (JMOC) and the European Mahjong Association (EMA). This organization held its first World Mahjong Championship in November 2007 in the Chinese town of Chengdu, attended by 144 participants from all over the world. It was won by Li Li, a Chinese student at Tsinghua University. The next World Championship took place in Utrecht, the Netherlands, 27 to 29 August 2010. Other major international tournaments include the Mahjong International League's World Mahjong Sports Games and the privately sponsored World Series Of Mahjong. American mahjong tournaments are held in virtually every state—the largest is in Las Vegas, Nevada, twice a year, and in Atlantic City, New Jersey, by Mah Jongg Madness (MJM), and an annual cruise is hosted by the National Mah Jongg League and MJM. MJM tournaments host between 150 and 500 participants at these larger events; there are several smaller-scale, but equally successful, tournaments held annually by other hosts. Prize pools are based on the number participating. Rules are based on the National Mah Jongg League standard rules. History Mahjong is based on draw-and-discard card games that were popular in 18th and 19th century China, some of which are still popular today. They were played with a stripped deck of money-suited cards. Each deck is divided into three suits of Cash or coins, Strings of cash, and Myriads of strings. There are nine ranks in each suit. In addition, there are three wild cards: Red flower, White flower, and Old thousand. Depending on the game, there are multiple copies of each card. Games scholar David Parlett has written that the Western card games Conquian and Rummy share a common origin with Mahjong. All these games involve players drawing and discarding tiles or cards to make melds. Khanhoo is an early example of such a game. The most likely ancestor to Mahjong was pènghú which was played with 120 or 150 cards. During the late 19th century, pènghú was used interchangeably with máquè in both card and tile form. It is not known when the conversion from cards to tiles took place precisely but it most likely occurred in the middle of the 19th century. The earliest surviving tile sets date to around 1870 and were acquired in Fuzhou, Shanghai, and Ningbo. These sets differ from modern ones in several ways. In the Glover sets, there were no "flower" and fā ("green dragon") tiles. In their place were "king" tiles for heaven, earth, man, and harmony and also for each of the 4 "winds" which may have acted as bonus tiles. In the contemporaneous Himly set, there were no zhōng ("red dragon") tiles either. Instead there were the wild cards known as Cash Flower, String Flower, and Myriad Flower plus an additional tile, the king of everything. These early jokers are still found in the Vietnamese and Thai sets. They may have been removed as the tiles share the same titles as the leaders of the Taiping Rebellion (1850–1864). For example, Hong Xiuquan was the self-styled "Heavenly King of Great Peace" and his top subordinates were called east king, south king, west king, and north king. The ban on gambling after the founding of the People's Republic in 1949 led to a decline in playing. The game itself was banned during the Cultural Revolution (1966–1976). Today, it is a favorite pastime in China and other Chinese-speaking communities. Mahjong in the West The first Western records about mahjong seem to correspond to the papers of British Consul General F.E.B. Harvey, around the time when he served as consul in Ningbo, during the 1860s. He mentions in his papers making the acquaintance of an English-fluent, rank-three official under the Daoguang Emperor, Chen Yumen, who taught him the game. In the same writings he details the rules he was taught by Chen. In 1895, British sinologist William Henry Wilkinson wrote a paper which mentioned a set of cards known in central China by the name of ma chioh, literally, hemp sparrow, which he maintained was the origin of the term Mahjong. He did not explain the dialect of the originator or region specific etymology of this information. By 1910, there were written accounts in many languages, including French and Japanese. The game was imported to the United States in the 1920s. The first Mahjong sets sold in the U.S. were sold by Abercrombie & Fitch starting in 1920. It became a success in Washington, D.C., and the co-owner of the company, Ezra Fitch, sent emissaries to Chinese villages to buy every Mahjong set they could find. Abercrombie & Fitch sold a total of 12,000 Mahjong sets. Mahjong became a central part of cultural bonding for Chinese Americans in the 1920s and '30s in Chinatown, Manhattan and was part of community building for suburban American Jewish women in the 1940s and 50s. Also in 1920, Joseph Park Babcock published his book Rules of Mah-Jongg, also known as the "red book". This was the earliest version of Mahjong known in America. Babcock had learned Mahjong while living in China. His rules simplified the game to make it easier for Americans to take up, and his version was common through the Mahjong fad of the 1920s. Later, when the 1920s fad died out, many of Babcock's simplifications were abandoned. The game has taken on a number of trademarked names, such as "Pung Chow" and the "Game of Thousand Intelligences". Mahjong nights in America often involved dressing and decorating rooms in Chinese style. Several hit songs were recorded during the Mahjong fad, most notably "Since Ma Is Playing Mah Jong" by Eddie Cantor. Many variants of Mahjong developed during this period. By the 1930s, many revisions of the rules developed that were substantially different from Babcock's classical version (including some that were considered fundamentals in other variants, such as the notion of a standard hand). The most common form, which eventually became "American Mahjong", was most popular among Jewish women. Standardization came with the formation of the National Mah Jongg League (NMJL) in 1937, along with the first American Mahjong rulebook, Maajh: The American Version of the Ancient Chinese Game, written by NMJL's first president and co-founder, Viola L. Cecil.<ref>Tom Sloper, The Red Dragon & The West Wind: The Winning Guide to Official Chinese & American Mah-Jongg, HarperCollins, 2007.</ref> Many consider the modern American version a Jewish remake, as many American Mahjong players are of Jewish descent. The NMJL was founded by Jewish players and is considered a Jewish organization. In 1986, the National Mah Jongg League conducted their first Mah Jongg Cruise Tournament, in conjunction with Mah Jongg Madness. In 2010, this large scale seagoing event hosted its 25th Silver Anniversary Cruise, with players from all over the States and Canada participating. In 1999, a second organization was formed, the American Mah Jongg Association. The AMJA currently hosts tournaments all across North America, with their signature event being at the Trump Taj Mahal Casino Resort in Atlantic City, New Jersey, prior to the casino’s closure on October 10, 2016. In the United Kingdom, British author Alan D. Millington revived the Chinese classical game of the 1920s with his book The Complete Book of Mah-jongg (1977). This handbook includes a formal rules set for the game. Mahjong serves as a minor plot point in the 2016 American science fiction film Arrival where General Shang uses the game to interact with the aliens. Current development There are many governing bodies which often host exhibition games and tournaments for modern and traditional Mahjong gaming. Mahjong, as of 2010, is the most popular table game in Japan. As of 2008, there were approximately 7.6 million Mahjong players in Japan and an estimated 8,900 Mahjong parlors did ¥300 billion (converting to US$2.8 billion according to exchange rates for April 30, 2020) in sales. There are several manga and anime (e.g. Saki and Akagi) devoted to dramatic and comic situations involving Mahjong. Since the 1980s, hundreds of different Mahjong arcade machines in Japanese video arcades have been created, including strip versions. Newer units can connect with other arcade machines across the Internet. Mahjong culture is still deeply ingrained in the Chinese community. Sam Hui wrote Cantopop songs using Mahjong as their themes, and Hong Kong movies have often included scenes of Mahjong games. Many gambling movies have been filmed in Hong Kong, and a recent subgenre is the Mahjong movie. Although the popularity of the game in China is still broad, since 1949, mahjong was frowned upon by the government because it is seen as a means of gambling addiction, an issue that the government always sought to tackle. Prolonged playing of Mahjong may trigger epileptic seizures according to a 2007 study. To date there are 23 reported cases of Mahjong-induced seizures in the English medical literature. Some doctors speculate that this may be due to stress and complex manual movement correlated with intense brain function similar to playing chess or card games such as poker. Studies by doctors have also shown in Hong Kong that the game is beneficial for individuals suffering from dementia or cognitive memory difficulties, leading to the development of Mahjong therapy. Researchers have also used artificial intelligence techniques to develop Mahjong-playing agents using neural networks and reinforcement learning. They have shown that a self-learning machine can be trained to compete with some of the best Richi Mahjong players. Mahjong was also adapted into several puzzle video games such as Mahjong Trails, listed as one of the top-grossing games on Facebook. Superstitions Even though both skill and chance play a fundamental role in the game, there is no shortage of superstitions in which players believe where they sit, how they hold their pieces or objects they have on their person will somehow affect the outcome. For example, players will try to find seats with the best feng shui or wear their lucky clothing or trinkets. Some believe that specific pieces (one dot, for example) bode bad luck if received in their opening hand. More elaborate superstitions in mahjong range from those found in the game poker, such as not counting one's wins and losses, to the comical, such as changing one's undergarments after a loss. As with all superstitions in gaming, none of them have been properly demonstrated as effective, though, for some, the rituals have become an integral part of the game experience and its aesthetics. Glossary Heavenly Hand (天糊) Great Winds (大四喜) Great Dragons (大三元) All Kongs (十八羅漢) All Honor Tiles (字一色) Thirteen Orphans (十三幺) Nine Gates Hand (九蓮宝燈) Self Triplets (四暗刻) All in Triplets (對對糊) Mixed one suit (混一色) All one suit (清一色) Common Hand (平糊) Small Dragons (小三元) Small Winds (小四喜) Unicode Mahjong tiles were added to the Unicode Standard in April, 2008 with the release of version 5.1. The Unicode block for Mahjong tiles is U+1F000–U+1F02F: See also Mahjong tiles Mahjong video game Singaporean Mahjong scoring rules Khanhoo Madiao Chinese playing cards Mah-Jongg (lemur), a pet owned by the Courtaulds References Notes Further reading Lo, Amy. The Book of Mahjong: An Illustrated Guide. Tuttle Publishing: 2001. Zhou, H. X. & Wang, Y. L. (2002). The Origin and Development of Mahjong. Journal Of Ningbo University(Liberal Arts Edition) Rep, J. (2007). The great mahjong book: History, lore and play. North Clarendon, VT: Tuttle Pub.. Oxfeld, Ellen, Blood, Sweat, and Mahjong: Family and Enterprise in an Overseas Chinese Community. Cornell University Press: 1993. . Pritchard, David B., Teach Yourself mahjong. McGraw-Hill/Contemporary: 2001. . Sloper, Tom., Mah-Jongg: Game of the Orient. Self-published: n.d. Wright Patterson Mah Jongg Group, Mah Jongg; Wright-Patterson Rules. Wright Patterson Mah Jongg Group: 1963. Historical research Culin, Stewart, ‘The Game of Ma-Jong, its Origin and Significance’. In: Brooklyn Museum Quarterly, Brooklyn, NY, Vol. XI, 1924, p. 153–168. Also found at; Gamesmuseum.uwaterloo.ca Depaulis, Thierry, ‘Embarrassing Tiles: Mahjong and the Taipings’. In: The Playing-Card, Vol. 35, No. 3, 2007, pp. 148 – 153. Ebashi, Takashi, ‘Proto Mahjong. Mahjong Tiles in the 19th Century’. In: Mahjong Museum Report, Vol. 5, No.2, Issue 9, April 2005, pp. 14 – 17 (in Japanese). Lo, Andrew, ‘China’s Passion for Pai: Playing Cards, Dominoes, and Mahjong’. In: Asian Games: The Art of Contest, Colin Mackenzie and Irving Finkel, eds. Asia Society. 2004. pp. 217–231. Greene, M. (2016). The Game People Played: Mahjong in Modern Chinese Society and Culture. Cross-Currents: East Asian History and Culture Review, 5(1), 1–27. doi:10.1353/ach.2016.0001 Stanwick, Michael, ‘Mahjong(g) Before Mahjong(g): Part 1’. In: The Playing-Card, Vol. 32, No. 4, 2004, pp. 153–162. Stanwick, Michael, ‘Mahjong(g) Before Mahjong(g): Part 2’. In: The Playing-Card, Vol. 32, No. 5, 2004, pp. 206–215. Stanwick, Michael, ‘Mahjong(g), Before and After Mahjong(g): Part 1’. In: The Playing-Card, Vol. 34, No. 4, 2006, pp. 259–268. Stanwick, Michael, ‘Mahjong(g), Before and After Mahjong(g): Part 2’. In: The Playing-Card, Vol. 35, No. 1, 2006, pp. 27–39. Stanwick, Michael and Xu, Hongbing, 'Flowers and Kings: A Hypothesis of their Function in Early Ma Que'. In: The Playing-Card, Vol. 37, No. 1, 2008, pp. 29–40. Stanwick, Michael and Xu, Hongbing, 'From Cards to Tiles: The Origin of Mahjong(g)'s Earliest Suit Names'. In: The Playing-Card, Vol. 41, No. 1, 2012, pp. 52–67. Wilkinson, William H.,(1890): Published in 1901 as pp 184–194 of Catalogue of the Collection of Playing Cards Bequeathed to the Trustees of the British Museum, F. M. O’Donoghue. Wilkinson, William H.,(1893): Published in Culin, Games of the Orient, Tuttle, 1958. First published under the title Korean Games, with Notes on the Corresponding Games of China and Japan, University of Pennsylvania, 1895. Wilkinson, William H., ‘Chinese Origin of Playing Cards’, in The American Anthropologist, Volume VIII, 1895, pp. 61–78. Can also be found at; Chinese classic Babcock, Joseph Park, Babcock's Rules for Mah-jongg. Mah-jongg Sales Company of America: 1923. Babcock, Smith, Hartman, Work, and Foster, The American Code Of Laws For Mah-Jongg. Standardization Committee: 1924. Millington, A.D., Complete Book of Mah Jong. Weidenfeld & Nicolson: 1993. . Chinese official Competition mahjong Official International Rulebook. Takeshobo: 2002. . Handbook for the Competitions of the Chinese MaJiang. Organizing Committee of Chinese MaJiang: 2005. Hatsune, Mai and Takunori Kajimoto, translation by Ryan Morris World-Class Mahjong with World Champion Mai Hatsune: 2005. Pritchard, David B., The New mahjong''. Right Way: 2004. . External links Chinese games Gambling games Traditional board games Articles containing video clips 1920s fads and trends

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https://en.wikipedia.org/wiki/May%2012

May 12

Events Pre-1600 254 – Pope Stephen I succeeds Pope Lucius I, becoming the 23rd pope of the Catholic Church, and immediately takes a stand against Novatianism. 907 – Zhu Wen forces Emperor Ai into abdicating, ending the Tang dynasty after nearly three hundred years of rule. 1191 – Richard I of England marries Berengaria of Navarre in Cyprus; she is crowned Queen consort of England the same day. 1328 – Antipope Nicholas V, a claimant to the papacy, is consecrated in Rome by the Bishop of Venice. 1364 – Jagiellonian University, the oldest university in Poland, is founded in Kraków. 1497 – Pope Alexander VI excommunicates Girolamo Savonarola. 1510 – The Prince of Anhua rebellion begins when Zhu Zhifan kills all the officials invited to a banquet and declares his intent on ousting the powerful Ming dynasty eunuch Liu Jin during the reign of the Zhengde Emperor. 1551 – National University of San Marcos, the oldest university in the Americas, is founded in Lima, Peru. 1588 – French Wars of Religion: Henry III of France flees Paris after Henry I, Duke of Guise, enters the city and a spontaneous uprising occurs. 1593 – London playwright Thomas Kyd is arrested and tortured by the Privy Council for libel. 1601–1900 1743 – Maria Theresa of Austria is crowned Queen of Bohemia after defeating her rival, Charles VII, Holy Roman Emperor. 1778 – Heinrich XI, count of the Principality of Reuss-Greiz, is elevated to Prince by Joseph II, Holy Roman Emperor. 1780 – American Revolutionary War: In the largest defeat of the Continental Army, Charleston, South Carolina is taken by British forces. 1797 – War of the First Coalition: Napoleon I of France conquers Venice. 1808 – Finnish War: Swedish-Finnish troops, led by Captain Karl Wilhelm Malmi, conquers the city of Kuopio from Russians after the Battle of Kuopio. 1821 – The first major battle of the Greek War of Independence against the Turks is fought in Valtetsi. 1846 – The Donner Party of pioneers departs Independence, Missouri for California, on what will become a year-long journey of hardship and cannibalism. 1862 – American Civil War: Union Army troops occupy Baton Rouge, Louisiana. 1863 – American Civil War: Battle of Raymond: Two divisions of James B. McPherson's XVII Corps turn the left wing of Confederate General John C. Pemberton's defensive line on Fourteen Mile Creek, opening up the interior of Mississippi to the Union Army during the Vicksburg Campaign. 1864 – American Civil War: The Battle of Spotsylvania Court House: Union troops assault a Confederate salient known as the "Mule Shoe", with the fiercest fighting of the war, much of it hand-to-hand combat, occurring at "the Bloody Angle" on the northwest. 1865 – American Civil War: The Battle of Palmito Ranch: The first day of the last major land action to take place during the Civil War, resulting in a Confederate victory. 1870 – The Manitoba Act is given the Royal Assent, paving the way for Manitoba to become a province of Canada on July 15. 1881 – In North Africa, Tunisia becomes a French protectorate. 1885 – North-West Rebellion: The four-day Battle of Batoche, pitting rebel Métis against the Canadian government, comes to an end with a decisive rebel defeat. 1888 – In Southeast Asia, the North Borneo Chartered Company's territories become the British protectorate of North Borneo. 1901–present 1926 – The Italian-built airship Norge becomes the first vessel to fly over the North Pole. 1926 – The 1926 United Kingdom general strike ends. 1932 – Ten weeks after his abduction, Charles Jr., the infant son of Charles Lindbergh, is found dead near Hopewell, New Jersey, just a few miles from the Lindberghs' home. 1933 – The Agricultural Adjustment Act, which restricts agricultural production through government purchase of livestock for slaughter and paying subsidies to farmers when they remove land from planting, is signed into law by President Franklin D. Roosevelt. 1933 – President Roosevelt signs legislation creating the Federal Emergency Relief Administration, the predecessor of the Federal Emergency Management Agency. 1937 – The Duke and Duchess of York are crowned as King George VI and Queen Elizabeth of the United Kingdom of Great Britain and Northern Ireland in Westminster Abbey. 1941 – Konrad Zuse presents the Z3, the world's first working programmable, fully automatic computer, in Berlin. 1942 – World War II: Second Battle of Kharkov: In eastern Ukraine, Red Army forces under Marshal Semyon Timoshenko launch a major offensive from the Izium bridgehead, only to be encircled and destroyed by the troops of Army Group South two weeks later. 1942 – World War II: The U.S. tanker SS Virginia is torpedoed in the mouth of the Mississippi River by the . 1948 – Wilhelmina, Queen regnant of the Kingdom of the Netherlands, cedes the throne to her daughter Juliana. 1949 – Cold War: The Soviet Union lifts its blockade of Berlin. 1965 – The Soviet spacecraft Luna 5 crashes on the Moon. 1968 – Vietnam War: North Vietnamese and Viet Cong forces attack Australian troops defending Fire Support Base Coral. 1975 – Indochina Wars: Democratic Kampuchea naval forces capture the SS Mayaguez. 1978 – In Zaire, rebels occupy the city of Kolwezi, the mining center of the province of Shaba (now known as Katanga); the local government asks the US, France and Belgium to restore order. 1982 – During a procession outside the shrine of the Virgin Mary in Fátima, Portugal, security guards overpower Juan María Fernández y Krohn before he can attack Pope John Paul II with a bayonet. 1989 – The San Bernardino train disaster kills four people, only to be followed a week later by an underground gasoline pipeline explosion, which kills two more people. 1998 – Four students are shot at Trisakti University, leading to widespread riots and the fall of Suharto. 2002 – Former US President Jimmy Carter arrives in Cuba for a five-day visit with Fidel Castro, becoming the first President of the United States, in or out of office, to visit the island since the Cuban Revolution. 2003 – The Riyadh compound bombings in Saudi Arabia, carried out by al-Qaeda, kill 39 people. 2006 – Mass unrest by the Primeiro Comando da Capital begins in São Paulo (Brazil), leaving at least 150 dead. 2006 – Iranian Azeris interpret a cartoon published in an Iranian magazine as insulting, resulting in massive riots throughout the country. 2008 – An earthquake (measuring around 8.0 magnitude) occurs in Sichuan, China, killing over 69,000 people. 2008 – U.S. Immigration and Customs Enforcement conducts the largest-ever raid of a workplace in Postville, Iowa, arresting nearly 400 immigrants for identity theft and document fraud. 2010 – Afriqiyah Airways Flight 771 crashes on final approach to Tripoli International Airport in Tripoli, Libya, killing 103 out of the 104 people on board. 2015 – A train derailment in Philadelphia kills eight people and injures more than 200. 2015 – Massive Nepal earthquake kills 218 people and injures more than 3500. 2017 – The WannaCry ransomware attack impacts over 400,000 computers worldwide, targeting computers of the United Kingdom's National Health Services and Telefónica computers. 2018 – Paris knife attack: A man is fatally shot by police in Paris after killing one and injuring several others. Births Pre-1600 1325 – Rupert II, Elector Palatine (d. 1398) 1401 – Emperor Shōkō of Japan (d. 1428) 1479 – Pompeo Colonna, Catholic cardinal (d. 1532) 1496 – Gustav I of Sweden (d. 1560) 1590 – Cosimo II de' Medici, Grand Duke of Tuscany (d. 1621) 1601–1900 1606 – Joachim von Sandrart, German art-historian and painter (d. 1688) 1622 – Louis de Buade de Frontenac, French-Canadian soldier and politician, third Governor General of New France (d. 1698) 1626 – Louis Hennepin, Flemish priest and missionary (d. 1705) 1670 – Augustus II the Strong, Polish king (d. 1733) 1700 – Luigi Vanvitelli, Italian architect and engineer, designed the Palace of Caserta and Royal Palace of Milan (d. 1773) 1725 – Louis Philippe I, Duke of Orléans (d. 1785) 1739 – Johann Baptist Wanhal, Czech-Austrian organist and composer (d. 1813) 1754 – Franz Anton Hoffmeister, German composer and publisher (d. 1812) 1755 – Giovanni Battista Viotti, Italian violinist and composer (d. 1824) 1767 – Manuel Godoy, Spanish field marshal and politician, Prime Minister of Spain (d. 1851) 1774 – Ellis Cunliffe Lister, English politician (d. 1853) 1777 – Mary Reibey, Australian businesswoman (d. 1855) 1803 – Justus von Liebig, German chemist and academic (d. 1873) 1804 – Robert Baldwin, Canadian lawyer and politician, third Premier of West Canada (d. 1858) 1806 – Johan Vilhelm Snellman, Finnish philosopher and politician (d. 1881) 1812 – Edward Lear, English poet and illustrator (d. 1888) 1814 – Adolf von Henselt, German pianist and composer (d. 1889) 1820 – Florence Nightingale, Italian-English nurse, social reformer, and statistician (d. 1910) 1825 – Orélie-Antoine de Tounens, French lawyer and explorer (d. 1878) 1828 – Dante Gabriel Rossetti, English poet and painter (d. 1882) 1829 – Pavlos Carrer, Greek composer and educator (d. 1896) 1839 – Tôn Thất Thuyết, Vietnamese mandarin (d. 1913) 1840 – Alejandro Gorostiaga, Chilean colonel (d. 1912) 1842 – Jules Massenet, French composer (d. 1912) 1845 – Gabriel Fauré, French pianist, composer, and educator (d. 1924) 1850 – Henry Cabot Lodge, American historian and politician (d. 1924) 1850 – Frederick Holder, Australian politician, 19th Premier of South Australia (d. 1909) 1859 – William Alden Smith, American lawyer and politician (d. 1932) 1859 – Frank Wilson, English-Australian politician, ninth Premier of Western Australia (d. 1918) 1863 – Upendrakishore Ray Chowdhury, Bengali writer, painter, violin player and composer, technologist and entrepreneur (d. 1915) 1867 – Hugh Trumble, Australian cricketer and accountant (d. 1938) 1869 – Carl Schuhmann, German gymnast, wrestler, and weightlifter (d. 1946) 1872 – Anton Korošec, Slovenian priest and politician, tenth Prime Minister of Yugoslavia (d. 1940) 1873 – J. E. H. MacDonald, English-Canadian painter (d. 1932) 1874 – Clemens von Pirquet, Austrian pediatrician and immunologist (d. 1929) 1875 – Charles Holden, English architect, designed the Bristol Central Library (d. 1960) 1880 – Lincoln Ellsworth, American explorer (d. 1951) 1885 – Paltiel Daykan, Lithuanian-Israeli lawyer and jurist (d. 1969) 1885 – Saneatsu Mushanokōji, Japanese author (d. 1976) 1886 – Ernst A. Lehmann, German captain and pilot (d. 1937) 1889 – Abelardo L. Rodríguez, substitute president of Mexico (d. 1967) 1889 – Otto Frank, German-Swiss businessman and Holocaust survivor; father of diarist Anne Frank (d. 1980) 1892 – Fritz Kortner, Austrian-German actor and director (d. 1970) 1895 – William Giauque, Canadian-American chemist and academic, Nobel Prize laureate (d. 1982) 1895 – Jiddu Krishnamurti, Indian-American philosopher and author (d. 1986) 1900 – Helene Weigel, Austrian-German actress (d. 1971) 1901–present 1901 – The Duke of Paducah, American country comedian, radio host and banjo player (d. 1986) 1903 – Faith Bennett, British actress and ATA pilot during WWII (d. 1969) 1903 – Wilfrid Hyde-White, English actor (d. 1991) 1905 – Édouard Rinfret, Canadian lawyer and politician, Postmaster General of Canada (d. 1994) 1907 – Leslie Charteris, English author and screenwriter (d. 1993) 1907 – Katharine Hepburn, American actress (d. 2003) 1908 – Nicholas Kaldor, Hungarian-English economist (d. 1986) 1910 – James Dudley, American baseball player, wrestling manager and executive (d. 2004) 1910 – Johan Ferrier, Surinamese educator and politician, first President of Suriname (d. 2010) 1910 – Dorothy Hodgkin, English biochemist, crystallographer, and academic, Nobel Prize laureate (d. 1994) 1910 – Gordon Jenkins, American pianist and composer (d. 1984) 1911 – Charles Biro, American author and illustrator (d. 1972) 1912 – Henry Jonsson, Swedish runner (d. 2001) 1914 – Bertus Aafjes, Dutch poet and author (d. 1993) 1914 – Howard K. Smith, American journalist and actor (d. 2002) 1915 – Tony Strobl, American comics artist and animator (d. 1991) 1916 – Albert Murray, American author and critic (d. 2013) 1918 – Mary Kay Ash, American businesswoman, founded Mary Kay Cosmetics (d. 2001) 1918 – Julius Rosenberg, American spy (d. 1953) 1921 – Joseph Beuys, German sculptor and illustrator (d. 1986) 1921 – Farley Mowat, Canadian environmentalist and author (d. 2014) 1922 – Marco Denevi, Argentinian lawyer and author (d. 1998) 1922 – Murray Gershenz, American actor and businessman (d. 2013) 1922 – Bob Goldham, Canadian ice hockey player and sportscaster (d. 1991) 1922 – Roy Salvadori, English race car driver and manager (d. 2012) 1924 – Maxine Cooper, American actress and photographer (d. 2009) 1924 – Alexander Esenin-Volpin, Russian-American mathematician and poet (d. 2016) 1924 – Tony Hancock, English actor, producer, and screenwriter (d. 1968) 1925 – Yogi Berra, American baseball player, coach, and manager (d. 2015) 1926 – Paulette Poujol-Oriol, Haitian educator and writer (d. 2011) 1926 – Viren J. Shah, Indian politician, 21st Governor of West Bengal (d. 2013) 1928 – Burt Bacharach, American singer-songwriter, pianist, and producer 1929 – Sam Nujoma, Namibian politician, first President of Namibia 1929 – Dollard St. Laurent, Canadian ice hockey player (d. 2015) 1930 – Jesús Franco, Spanish director and screenwriter (d. 2013) 1932 – Joel Joffe, Baron Joffe, South African-English lawyer and politician (d. 2017) 1933 – Andrei Voznesensky, Russian poet (d. 2010) 1935 – Felipe Alou, Dominican-American baseball player, coach, and manager 1935 – Johnny Bucyk, Canadian ice hockey player 1936 – Guillermo Endara, Panamanian lawyer and politician, 32nd President of Panama (d. 2009) 1936 – Tom Snyder, American journalist and talk show host (d. 2007) 1936 – Frank Stella, American painter and sculptor 1937 – Beryl Burton, English cyclist (d. 1996) 1937 – George Carlin, American comedian, actor, and author (d. 2008) 1937 – Susan Hampshire, English actress 1937 – Miriam Stoppard, English physician and author 1938 – Millie Perkins, American actress 1939 – Cyril Chantler, English pediatrician and academic 1939 – Jalal Dabagh, Kurdish journalist and politician 1939 – Miltiadis Evert, Greek minister and politician, 69th Mayor of Athens (d. 2011) 1939 – Reg Gasnier, Australian rugby league player, coach, and sportscaster (d. 2014) 1939 – Ron Ziegler, American politician, White House Press Secretary (d. 2003) 1940 – Norman Whitfield, American songwriter and producer (d. 2008) 1941 – Ruud de Wolff, Dutch singer (d. 2000) 1942 – Ian Dury, English singer-songwriter (d. 2000) 1942 – Michel Fugain, French singer-songwriter 1942 – Billy Swan, American country singer-songwriter 1942 – Dragoljub Velimirović, Serbian chess player and theoretician (d. 2014) 1944 – Chris Patten, English academic and politician, 28th Governor of Hong Kong 1945 – Alan Ball, Jr., English footballer and manager (d. 2007) 1945 – Ian McLagan, English keyboard player and songwriter (d. 2014) 1945 – Patrick Ricard, French businessman (d. 2012) 1946 – Daniel Libeskind, American architect, designed the Imperial War Museum North and Jewish Museum 1947 – Michael Ignatieff, Canadian journalist and politician 1948 – Lindsay Crouse, American actress 1948 – Dave Heineman, American captain and politician, 39th Governor of Nebraska 1948 – Richard Riehle, American actor 1948 – Steve Winwood, English singer-songwriter and multi-instrumentalist 1949 – Ross Bleckner, American painter 1950 – Bruce Boxleitner, American actor and author 1950 – Gabriel Byrne, Irish actor, director, and producer 1950 – Helena Kennedy, Baroness Kennedy of The Shaws, Scottish lawyer, academic, and politician 1950 – Billy Squier, American singer-songwriter and guitarist 1951 – George Karl, American basketball player and coach 1955 – Kix Brooks, American country music singer-songwriter and musician 1956 – Bernie Federko, Canadian ice hockey player, coach, and manager 1956 – Sergio Marchi, Argentinean-Canadian urban planner and politician, tenth Canadian Minister of International Trade 1956 – Greg Phillinganes, American keyboardist 1956 – Asad Rauf, Pakistani cricketer and umpire 1957 – Ziya Onis, Turkish economist and academic 1958 – Kim Greist, American actress 1958 – Andreas Petroulakis, Greek cartoonist 1958 – Dries van Noten, Belgian fashion designer 1959 – Dave Christian, American ice hockey player 1959 – Ray Gillen, American rock singer-songwriter (d. 1993) 1959 – Ving Rhames, American actor 1960 – Lisa Martin, Australian runner 1961 – Thomas Dooley, German-American soccer player and manager 1961 – Billy Duffy, English rock guitarist and songwriter 1961 – Bruce McCulloch, Canadian actor and comedian 1962 – Emilio Estevez, American actor 1962 – Brett Gurewitz, American guitarist and songwriter 1962 – Gregory H. Johnson, English-born American astronaut 1963 – Panagiotis Fasoulas, Greek basketball player and politician 1963 – Gavin Hood, South African actor, director, producer, and screenwriter 1963 – Stefano Modena, Italian race car driver 1963 – Vanessa A. 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E. B. Stuart, American general (b. 1833) 1867 – Friedrich Wilhelm Eduard Gerhard, German archaeologist and academic (b. 1795) 1878 – Anselme Payen, French chemist and academic (b. 1795) 1876 – Georgi Benkovski, Bulgarian activist (b. 1843) 1884 – Bedřich Smetana, Czech composer and educator (b. 1824) 1897 – Minna Canth, Finnish journalist, playwright, and activist (b. 1844) 1900 – Göran Fredrik Göransson, Swedish merchant, ironmaster and industrialist (b. 1819) 1901–present 1907 – Joris-Karl Huysmans, French author and critic (b. 1848) 1916 – James Connolly, Scottish-born Irish socialist and rebel leader (b. 1868) 1925 – Amy Lowell, American poet and critic (b. 1874) 1931 – Eugène Ysaÿe, Belgian violinist, composer, and conductor (b. 1858) 1935 – Józef Piłsudski, Polish field marshal and politician, 15th Prime Minister of Poland (b. 1867) 1944 – Max Brand, American journalist and author (b. 1892) 1944 – Arthur Quiller-Couch, English author, poet, and critic (b. 1863) 1956 – Louis Calhern, American actor and singer (b. 1895) 1957 – Alfonso de Portago, Spanish bobsledder and race car driver (b. 1928) 1957 – Erich von Stroheim, Austrian-American actor, director, and producer (b. 1885) 1963 – Richard Girulatis, German footballer and manager (b. 1878) 1963 – Robert Kerr, Irish-Canadian sprinter and coach (b. 1882) 1964 – Agnes Forbes Blackadder, Scottish medical doctor (b. 1875) 1966 – Felix Steiner, Russian-German SS officer (b. 1896) 1967 – John Masefield, English poet and author (b. 1878) 1970 – Nelly Sachs, German poet and playwright, Nobel Prize laureate (b. 1891) 1971 – Heinie Manush, American baseball player and coach (b. 1901) 1973 – Frances Marion, American screenwriter, novelist and journalist (b. 1888) 1973 – Art Pollard, American race car driver (b. 1927) 1974 – Wayne Maki, Canadian National Hockey League player (b. 1944) 1980 – Lillian Roth, American actress (b. 1910) 1981 – Francis Hughes, Provisional IRA hunger striker (b. 1956) 1981 – Benjamin Sheares, Singaporean professor and politician, second President of Singapore (b. 1907) 1985 – Jean Dubuffet, French painter and sculptor (b. 1901) 1986 – Elisabeth Bergner, German actress (b. 1897) 1992 – Nikos Gatsos, Greek poet and songwriter (b. 1911) 1992 – Robert Reed, American actor (b. 1932) 1993 – Zeno Colò, Italian Olympic alpine skier (b.1920) 1994 – Erik Erikson, German-American psychologist and psychoanalyst (b. 1902) 1994 – John Smith, Scottish-English lawyer and politician, Labour Party leader, Leader of the Opposition (b. 1938) 1995 – Ștefan Kovács, Romanian football player and coach (b. 1920) 1999 – Saul Steinberg, Romanian-American illustrator (b. 1914) 2000 – Adam Petty, American race car driver (b. 1980) 2001 – Perry Como, American singer and television host (b. 1912) 2001 – Alexei Tupolev, Russian engineer, designed the Tupolev Tu-144 (b. 1925) 2003 – Prince Sadruddin Aga Khan, French-American diplomat (b. 1933) 2005 – Ömer Kavur, Turkish director, producer, and screenwriter (b. 1944) 2005 – Martin Lings, English author and scholar (b. 1909) 2005 – Monica Zetterlund, Swedish actress (b. 1937) 2006 – Hussein Maziq, Libyan politician, Prime Minister of Libya (b. 1918) 2008 – Robert Rauschenberg, American painter and illustrator (b. 1925) 2008 – Irena Sendler, Polish nurse and humanitarian (b. 1910) 2009 – Antonio Vega, Spanish singer-songwriter and guitarist (b. 1957) 2012 – Jan Bens, Dutch footballer and coach (b. 1921) 2012 – Eddy Paape, Belgian illustrator (b. 1920) 2013 – Gerd Langguth, German political scientist, author, and academic (b. 1946) 2014 – Cornell Borchers, Lithuanian-German actress and singer (b. 1925) 2014 – Marco Cé, Italian cardinal (b. 1925) 2014 – H. R. Giger, Swiss painter, sculptor, and set designer (b. 1940) 2014 – Sarat Pujari, Indian actor, director, and screenwriter (b. 1934) 2014 – Lorenzo Zambrano, Mexican businessman and philanthropist (b. 1944) 2015 – Peter Gay, German-American historian, author, and academic (b. 1923) 2016 – Mike Agostini, Trinidadian sprinter (b. 1935) 2017 – Mauno Koivisto, Finnish banker and politician, ninth President of Finland (b. 1923) 2018 – Dennis Nilsen, Scottish serial killer (b. 1945) Holidays and observances Christian feast day: Blessed Imelda Blessed Joan of Portugal Crispoldus Dominic de la Calzada Epiphanius of Salamis Gregory Dix (Church of England) Modoald Nereus, Achilleus, Domitilla, and Pancras Patriarch Germanus I of Constantinople (Eastern Church) Philip of Agira References External links BBC: On This Day Today in Canadian History Days of the year May

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https://en.wikipedia.org/wiki/Mariah%20Carey

Mariah Carey

Mariah Carey (; born March 27, 1969) is an American singer, songwriter, actress, and record producer. Known for her five-octave vocal range, melismatic singing style, and signature use of the whistle register, she is referred to as the "Songbird Supreme" and the "Queen of Christmas". Carey rose to fame in 1990 with her eponymous debut album. She was the first artist to have her first five singles reach number one on the Billboard Hot 100, from "Vision of Love" to "Emotions". Carey's debut album was released under the guidance of Columbia Records executive Tommy Mottola, whom she married three years later. Carey achieved worldwide success with the albums Music Box (1993), Merry Christmas (1994), and Daydream (1995), with singles including "Hero", "Without You", "All I Want for Christmas Is You", "Fantasy", "Always Be My Baby", and "One Sweet Day", which topped the US Billboard Hot 100 decade-end chart (1990s). After separating from Mottola, Carey adopted a new image and incorporated more elements of hip hop with Butterfly (1997). Billboard named her the Artist of the 1990s Decade, while the World Music Awards honored her as the bestselling female pop artist of the millennium. In 2001, after eleven consecutive years of U.S. number-one singles, Carey left Columbia and signed a $100 million recording contract with Virgin Records. Following her highly publicized physical and emotional breakdown and the failure of her film Glitter (2001) and its soundtrack, her contract was bought for $28 million by Virgin and she signed with Island Records the following year. After a less successful period, Carey returned with The Emancipation of Mimi (2005), which became the bestselling album in the US and the world's second-bestselling album of 2005. Its second single, "We Belong Together", topped the US Billboard Hot 100 decade-end chart (2000s). Her performance in the 2009 film Precious won her the Breakthrough Actress Performance Award at the Palm Springs International Film Festival. Carey's subsequent ventures included serving as a judge on American Idol, starring in the docu-series Mariah's World, appearing in the films The Butler (2013), A Christmas Melody (2015), and The Lego Batman Movie (2017), and publishing her 2020 memoir The Meaning of Mariah Carey. With sales of over 220 million records worldwide, Carey is one of the best-selling music artists of all time. Nineteen of her songs have topped the Billboard Hot 100. She holds the record for the most number-one singles by a solo artist, a female songwriter (eighteen), and a female producer (fifteen). She is the highest-certified female artist in the United States, with 68.5 million certified album units, tying with Barbra Streisand. Carey was ranked second on VH1's list of the 100 Greatest Women in Music, and in 2019, Billboard named her "The greatest female artist of all time", based on both album and song chart performances. Carey has won five Grammy Awards, nineteen World Music Awards, ten American Music Awards, and fifteen Billboard Music Awards. An inductee of the Songwriters Hall of Fame, she is noted for inspiring other artists in R&B and was one of the first artists to popularize hip hop into popular music. Early life Mariah Carey was born on March 27, 1969, in Huntington, New York. Her name was derived from the song "They Call the Wind Maria," originally from the 1951 Broadway musical Paint Your Wagon. She is the youngest of three children born to Patricia (née Hickey), a former opera singer and vocal coach of Irish descent, and Alfred Roy Carey, an aeronautical engineer of African-American and Afro-Venezuelan lineage. The last name Carey was adopted by her Venezuelan grandfather, Francisco Núñez, after he emigrated to New York. Patricia's family disowned her for marrying a black man. Racial tensions prevented the Carey family from integrating into their community. While living in Huntington, neighbors poisoned the family dog and set fire to their car. After her parents' divorce, Carey had little contact with her father, and her mother worked several jobs to support the family. Carey spent much of her time at home alone and began singing at age three, often imitating her mother's take on Verdi's opera Rigoletto in Italian. While her elder sister Alison moved in with their father, Mariah and her older brother Morgan remained with their mother. During her years in elementary school, she excelled in the arts, such as music and literature. Carey began writing poetry and lyrics while attending Harborfields High School in Greenlawn, New York, where she graduated in 1987. Carey began vocal training under the tutelage of her mother. Though a classically trained opera singer, Patricia never pressured her daughter to pursue a career in classical opera. Carey recalled that she had "never been a pushy mom. She never said, 'Give it more of an operatic feel.' I respect opera like crazy, but it didn't influence me." In high school, she was frequently absent because of her work as a demo singer; her classmates consequently gave her the nickname Mirage. Her work in the Long Island music scene gave her opportunities to work with musicians such as Gavin Christopher and Ben Margulies, with whom she co-wrote material for her demo tape. After moving to New York City, she worked part-time jobs to pay the rent, and completed 500 hours of beauty school. Carey moved into a one-bedroom apartment in Manhattan, and shared it with four other female students. She landed a gig singing backup for freestyle singer Brenda K. Starr. Career 1988–1992: Career beginnings, Mariah Carey and Emotions In December 1988, Carey accompanied Starr to a CBS record executives' gala, where she handed her demo tape to the head of Columbia Records, Tommy Mottola. After listening to the tape during the ride home, he immediately requested the driver turn around. Carey had already left the event, and in what has been described as a modern-day Cinderella story, he spent the next two weeks in search of her. Another record label expressed interest, and a bidding war ensued. Mottola signed Carey to Columbia and enlisted the talents of top producers Ric Wake, Narada Michael Walden and Rhett Lawrence. Columbia marketed Carey as the main female artist on their roster, competing with Arista's Whitney Houston and Madonna of Sire Records. On June 5, 1990, she made her first public appearance at the 1990 NBA Finals, singing "America the Beautiful". The highlight was the piercing whistle note toward the song's conclusion, sparking CBS Sports anchor Pat O'Brien to declare, "The palace now has a queen." Columbia spent upwards of $1 million promoting Carey's debut studio album, Mariah Carey. After a slow start, the album eventually topped the Billboard 200 for eleven consecutive weeks, after Carey's exposure at the 33rd Annual Grammy Awards, where she won the award for Best New Artist, and Best Female Pop Vocal Performance for her single "Vision of Love." The album's singles "Vision of Love", "Love Takes Time", "Someday", and "I Don't Wanna Cry" all topped the US Billboard Hot 100. Mariah Carey was the best-selling album in the United States in 1991, and achieved worldwide sales of 15 million copies. The following year, Carey co-wrote, co-produced and recorded her second studio effort, Emotions. Described by Carey as a homage to the Motown soul music, Carey employed the help of Walter Afanasieff, who only had a small role on her debut, as well as Robert Clivillés and David Cole, from the dance group C+C Music Factory. Carey's relationship with Margulies deteriorated over a songwriting royalties dispute. After he filed a lawsuit against Columbia's parent company, Sony, the songwriting duo parted ways. Emotions was released on September 17, 1991. The title track, the album's lead single, became Carey's fifth chart topper on the Billboard Hot 100, making her the first artist to have their first five singles reach the chart's summit. Though critics praised the album's content and described it as a more mature effort, the album was criticized as calculated and lacking originality. While the album managed sales of eight million copies globally, Emotions failed to reach the commercial and critical heights of its predecessor. Carey would once again refuse to embark on a world tour to promote the album. Although she credited stage fright and the vocally challenging nature of her material, speculation grew that Carey was a "studio worm," and that she was incapable of producing the perfect pitch and 5-octave vocal range for which she was known. In hopes of putting to rest any speculation of her being a manufactured artist, Carey booked an appearance on MTV Unplugged. The show presented artists "unplugged" or in a stripped setting and devoid of studio equipment. Days prior to the show's taping, Carey and Afanasieff chose to add a cover of the Jackson 5's 1970 song "I'll Be There" to the set-list. On March 16, 1992, Carey played and recorded an intimate seven-song show at Kaufman Astoria Studios in Queens, New York. The acclaimed revue was aired more than three times as often as the average episode. It established Carey as a viable live act, with critics heralding it as a "vocal Tour de force". Carey's live version of "I'll Be There" became her sixth number-one single on the Billboard Hot 100 chart. Sony capitalized on its success and released it as an EP. It earned a triple-Platinum certification by the Recording Industry Association of America (RIAA), and earned Gold and Platinum certifications in several European markets. 1993–1996: Music Box, Merry Christmas, and Daydream After Emotions failed to achieve the commercial heights of her debut album, Carey's subsequent release was to be marketed as adult contemporary and pop-friendly. Music Box was produced by Carey and Afanasieff, and began a songwriting partnership that would extend until 1997's Butterfly. The album was released on August 31, 1993 to mixed reviews from music critics. Carey's songwriting was derided as clichéd and her vocal performances were described as less emotive and lazier in their delivery. In his review of the album, AllMusic's Ron Wynn concluded: "sometimes excessive spirit is preferable to an absence of passion." In promotion of the album, Carey embarked on her debut tour, a six date concert series, the Music Box Tour. Music Boxs second single, "Hero", became Carey's eighth chart-topper in the United States and has been recognized as her signature song. Her cover of Badfinger's "Without You" was a commercial breakthrough in Europe, becoming her first number-one single in Germany, Sweden and the United Kingdom. Music Box remains Carey's best-seller and one of the best-selling albums of all time, with worldwide sales of over 28 million copies. In mid-1994, Carey recorded and released a duet with Luther Vandross; a cover of Lionel Richie and Diana Ross's "Endless Love". Merry Christmas, released on November 1, 1994, became the best-selling Christmas album of all time, with global sales of over 15 million copies. The lead single, "All I Want for Christmas Is You", became a holiday standard and continues to surge in popularity each holiday season. By October 2017, it had become the 11th-bestselling single in modern music. In 2019, 25 years after the song's release, it finally peaked at number-one on the Billboard Hot 100 for the first time, and it continued to do so every December since, becoming the first song in history to hold the top position in more than two different chart years, as well as the longest-running holiday number-one song (five weeks). Additionally, it is the longest running number-one song on the Billboard Holiday 100, spending 44 cumulative weeks, of the chart's 49 total weeks since the list launched in 2011. Carey's fifth studio album, Daydream, found her consolidating creative control over her career, leading to tensions with Columbia. The album featured a departure from her allegiance to pop and gravitated heavily towards R&B and hip hop. Critically, the album was described as Carey's best to date. The New York Times named it one of 1995's best albums and concluded: "[the album] brings R&B candy-making to a new peak of textural refinement ... Carey's songwriting has taken a leap forward and become more relaxed, sexier and less reliant on thudding clichés." The album's lead single, "Fantasy", became the first single by a female artist to debut at number one on the Billboard Hot 100, and the second single, "One Sweet Day", a collaboration with R&B group Boyz II Men, remained atop the Billboard Hot 100 for a record-breaking 16 consecutive weeks, becoming, at the time, the longest-running number-one song in the history of the charts. Daydream became her biggest-selling album in the United States, and her second album to be certified Diamond by the RIAA, after Music Box. The album continued Carey's dominance in Asian music markets and sold in excess of 2.2 million copies in Japan alone and over 20 million copies globally. Daydream and its singles were nominated in six categories at the 38th Grammy Awards. Though considered a favorite to win the top awards of the evening, Carey was shut out, prompting her to comment "What can you do? I will never be disappointed again." In early 1996, she embarked on her first international string of concerts, the Daydream World Tour. Its seven dates spanned three in Japan and four throughout Europe. During the recording of Daydream, Carey also worked on the alternative rock album Someone's Ugly Daughter by the band Chick, contributing writing, production, vocals and art direction. As Columbia Records refused to release the album with her lead vocals, Carey's friend Clarissa Dane was brought in to become the face of Chick, and her vocals were layered on top of Carey's, masking her voice. Carey also directed the music video for the Chick song "Malibu". According to Carey, "I was playing with the style of the breezy-grunge, punk-light white female singers who were popular at the time ... I totally looked forward to doing my alter-ego band sessions after Daydream each night." Her contributions were secret until the release of her 2020 memoir The Meaning of Mariah Carey. 1997–2000: New image and independence, Butterfly, and Rainbow Carey's subsequent musical releases followed the trend that began with Daydream. Her music began relying less on pop and adult contemporary-tinged balladry and instead incorporating heavy elements of hip-hop and R&B. On Butterfly, Carey collaborated with a bevy of producers other than Afanasieff, such as Sean Combs, Q-Tip, Missy Elliott and Jean Claude Oliver and Samuel Barnes from Trackmasters. In mid-1997, after four years of marriage, Carey and Mottola separated. Carey described Mottola as increasingly controlling, and viewed her newfound independence as a new lease on life. In the booklet of her twelfth studio album, Memoirs of an Imperfect Angel (2009), Carey wrote that she considers Butterfly her magnum opus and a turning point in both her life and career. Butterfly introduced a more subdued style of singing, with critics noting Carey's incorporation of breathy vocals. Some viewed her lack of propensity to use her upper range as a sign of maturity, while others questioned whether it forebode waning vocal prowess. The music video for the album's lead single, "Honey", her first since separating from Mottola, introduced a more overtly sexual image. Butterfly became Carey's best-reviewed album, with attention placed on the album's exploration of more mature lyrical themes. In their review of the album, Rolling Stone wrote "[It's] not as if Carey has totally dispensed with her old saccharine, Houston-style balladry ... but the predominant mood of 'Butterfly' is one of coolly erotic reverie." AllMusic editor Stephen Thomas Erlewine described Carey's vocals as "sultrier and more controlled than ever," and felt the album "illustrates that Carey continues to improve and refine her music, which makes her a rarity among her '90s peers.'" Though a commercial success, the album failed to reach the commercial heights of her previous albums, Music Box and Daydream. After concluding her Butterfly World Tour, Carey partook in the VH1 Divas benefit concert on April 14, 1998, where she sang alongside Aretha Franklin, Celine Dion, Shania Twain, Gloria Estefan, and Carole King. Carey began conceptualizing a film project All That Glitters, later re-titled to simply Glitter (2001), and wrote songs for other projects, such as Men in Black (1997) and How the Grinch Stole Christmas (2000). After Glitter fell into developmental hell, Carey postponed the project, and began writing material for a new album. Sony Music executives insisted she prepare a greatest hits collection in time for the holiday season. The album, titled #1's (1998), featured a cover of Brenda K. Starr's "I Still Believe" and a duet with Whitney Houston, "When You Believe", which was included on the soundtrack for The Prince of Egypt (1998). #1's became a phenomenon in Japan, selling over one million copies in its opening week, making Carey the only international artist to accomplish this feat. It sold over 3.25 million copies in Japan in its first three months on sale, and holds the record as the best-selling album by a non-Asian artist. With only one album left to fulfill her contract with Sony, and with a burning desire to separate herself professionally from the record label her ex-husband still headed, Carey completed the album in three months in mid-1999. Titled Rainbow, the album found Carey exploring with producers which she had not worked with before. Rainbow became Carey's first album to not feature a collaboration with her longtime writing partner, Walter Afanasieff, instead choosing to work with David Foster and Diane Warren. The album's lead single, "Heartbreaker", featured guest vocals from rapper Jay-Z and a remix produced by DJ Clue?. Rainbow was released on November 2, 1999, to the highest first week sales of her career at the time, however debuting at number two on the Billboard 200. Carey's tense relationship with Columbia grew increasingly fractious; Carey began posting messages on her website, sharing inside information with fans on the dispute, as well as instructing them to request "Can't Take That Away (Mariah's Theme)" on radio stations. Ultimately, the song was only given a very limited and low-promotion release. Critical reception of Rainbow was generally positive, with the general consensus finding: "what began on Butterfly as a departure ends up on Rainbow a progression – perhaps the first compelling proof of Carey's true colors as an artist." Though a commercial success, Rainbow became Carey's lowest selling album at that point in her career. 2001–2004: Personal and professional problems, Glitter and Charmbracelet Carey received Billboards Artist of the Decade Award and the World Music Award for Best-Selling Pop Female Artist of the Millennium, and parted from Columbia Records. She signed an unprecedented $100 million five-album recording contract with Virgin Records (EMI Records) in April 2001. Glitter was a musical departure, recreating a 1980s post-disco era to accompany the film, set in 1983. Carey was given full conceptual and creative control over the project. She said that Columbia had regarded her as a commodity, with her separation from Mottola exacerbating her relations with label executives. Carey's three-year relationship with Latin singer Luis Miguel ended. In July 2001, Carey suffered a physical and emotional breakdown. She began posting disturbing messages on her website, and behaved erratically in live promotional outings. On July 19, she made a surprise appearance on the MTV program Total Request Live (TRL). As the show's host Carson Daly began taping following a commercial break, Carey came out pushing an ice cream cart while wearing a large men's shirt, and began a striptease in which she revealed a tight ensemble. Days later, she posted irregular voice notes on her website: "I'm trying to understand things in life right now and so I really don't feel that I should be doing music right now. What I'd like to do is just a take a little break or at least get one night of sleep without someone popping up about a video. All I really want is [to] just be me and that's what I should have done in the first place ... I don't say this much but guess what, I don't take care of myself." Following the quick removal of the messages, Berger commented that Carey had been "obviously exhausted and not thinking clearly" when she posted the letters. On July 26, Carey was hospitalized due to exhaustion and a "physical and emotional breakdown". She was admitted to a hospital in Connecticut and remained under doctor's care for two weeks, followed by an extended absence from the public. Virgin Records and 20th Century Fox delayed the release of Glitter and its soundtrack. Critics panned Glitter and its soundtrack; both were unsuccessful commercially. The soundtrack became Carey's lowest-selling album to that point. The St. Louis Post-Dispatch dismissed it as "an absolute mess that'll go down as an annoying blemish on [her] career." She attributed the poor performance to her state of mind, its postponement and the soundtrack having been released on September 11. Carey's $80 million record deal with Virgin Records was bought out for $28 million. She flew to Capri, Italy, for five months, where she wrote material for a new album. She described her time at Virgin "a complete and total stress-fest ... I made a total snap decision which was based on money and I never make decisions based on money. I learned a big lesson from that." She signed a contract with Island Records, valued at more than $24 million, and launched the record label MonarC. Carey's father, Alfred Roy, with whom she had had little contact since childhood, died of cancer that year. In 2002, Carey was cast in the independent film WiseGirls alongside Mira Sorvino and Melora Walters, who co-starred as waitresses at a mobster-operated restaurant. It premiered at the Sundance Film Festival, and received negative reviews, though Carey's performance was praised; Roger Friedman of Fox News described her as "a Thelma Ritter for the new millennium", and wrote, "Her line delivery is sharp and she manages to get the right laughs." Carey performed the American national anthem at the Super Bowl XXXVI at the Louisiana Superdome in New Orleans, Louisiana. In December 2002, Carey released her ninth studio album, Charmbracelet, which she said marked "a new lease on life" for her. Sales of Charmbracelet were moderate and the quality of Carey's vocals came under criticism. Joan Anderson from The Boston Globe declared the album "the worst of her career, and revealed a voice [that is] no longer capable of either gravity-defying gymnastics or soft coos", while AllMusic editor Stephen Thomas Erlewine wrote, "Mariah's voice is shot, sounding in tatters throughout the record. She can no longer coo or softly croon nor can she perform her trademark gravity-defying vocal runs." To support the album, Carey embarked on the Charmbracelet World Tour, spanning North America and East Asia over three months. The United States shows were booked in theaters. She described the show as "much more intimate so you'll feel like you had an experience. You experience a night with me." While smaller venues were booked throughout the tour's stateside leg, Carey performed in stadiums in Asia and Europe, playing for a crowd of over 35,000 in Manila, 50,000 in Malaysia, and to over 70,000 people in China. In the United Kingdom, it was her first tour to feature shows outside London, booking arena stops in Glasgow, Birmingham and Manchester. The tour garnered generally positive reviews, with many praising the production and the quality of Carey's vocals. 2005–2007: Resurgence with The Emancipation of Mimi Carey's tenth studio album, The Emancipation of Mimi, was produced with the Neptunes, Kanye West and Carey's longtime collaborator, Jermaine Dupri. She described the album as "very much like a party record ... the process of putting on makeup and getting ready to go out ... I wanted to make a record that was reflective of that." The Emancipation of Mimi topped the charts in the United States, becoming Carey's fifth number-one album and first since Butterfly (1997), and was warmly accepted by critics. Caroline Sullivan of The Guardian defined it as "cool, focused and urban [... some of] the first Mariah Carey tunes in years which I wouldn't have to be paid to listen to again," while USA Todays Elysa Gardner wrote, "The [songs] truly reflect the renewed confidence of a songbird who has taken her shots and kept on flying." The album's second single, "We Belong Together", became a "career re-defining" song for Carey, after a relatively unsuccessful period and a point when many critics had considered her career over. Music critics heralded the song as her "return to form," as well as the "return of The Voice," while many felt it would revive "faith" in Carey's potential as a balladeer. "We Belong Together" broke several records in the United States and became Carey's sixteenth chart topper on the Billboard Hot 100. After staying at number one for fourteen non-consecutive weeks, the song became the second longest running number one song in US chart history, behind Carey's 1996 collaboration with Boyz II Men, "One Sweet Day". Billboard listed it as the "song of the decade" and the ninth most popular song of all time. The song broke several airplay records, and according to Nielsen BDS, and gathered both the largest one-day and one-week audiences in history. During the week of September 25, 2005, Carey set another record, becoming the first female to occupy the first two spots atop the Hot 100, as "We Belong Together" remained at number one, and her next single, "Shake It Off", moved into the number two spot (Ashanti had topped the chart in 2002 while being a "featured" singer on the number two single). On the Billboard Hot 100 Year-end Chart of 2005, the song was declared the number one song, a career first for Carey. Billboard listed "We Belong Together" ninth on The Billboard Hot 100 All-Time Top Songs and was declared the most popular song of the 2000s decade by Billboard. The album was re-released as The Ultra Platinum Edition. The Emancipation of Mimi earned ten Grammy Award nominations: eight in 2006 for the original release (the most received by Carey in a single year), and two in 2007 for the Ultra Platinum Edition (from which "Don't Forget About Us" became her seventeenth number-one hit). Carey won Best Contemporary R&B Album and Best Female R&B Vocal Performance and Best R&B Song for "We Belong Together". The Emancipation of Mimi was the best-selling album in the United States in 2005, with nearly five million units sold. It was the first album by a solo female artist to become the year's best-selling album since Alanis Morissette's Jagged Little Pill in 1996. At the end of 2005, the IFPI reported that The Emancipation of Mimi had sold more than 7.7 million copies globally, and was the second-best-selling album of the year after Coldplay's X&Y. To date, The Emancipation of Mimi has sold over 12 million copies worldwide. In support of the album, Carey embarked on her first headlining tour in three years, named The Adventures of Mimi after a "Carey-centric fan's" music diary. The tour spanned 40 dates, with 32 in the United States and Canada, two in Africa, and six in Japan. It received warm reception from music critics and concert goers, many of which celebrated the quality of Carey's vocals. 2008–2009: E=MC², Memoirs of an Imperfect Angel, and Precious In early 2007, Carey began to work on her eleventh studio album, E=MC², in a private villa in Anguilla. Although E=MC² was well received by most critics, some of them criticized it for being very similar to the formula used on The Emancipation of Mimi. Two weeks before the album's release, "Touch My Body", the record's lead single, reached the top position on the Billboard Hot 100, becoming Carey's eighteenth number one and making her the solo artist with the most number one singles in United States history, pushing her past Elvis Presley into second place according to the magazine's revised methodology. Carey is second only to The Beatles, who have twenty number-one singles. Additionally, it gave Carey her 79th week atop the Hot 100, tying her with Presley as the artist with the most weeks at number one in the Billboard chart history." E=MC² debuted at number one on the Billboard 200 with 463,000 copies sold, the biggest opening week sales of her career. In 2008, Carey also played an aspiring singer named Krystal in Tennessee and had a cameo appearance in Adam Sandler's film You Don't Mess with the Zohan, playing herself. Since the album's release, Carey had planned to embark on an extensive tour in support of E=MC². However the tour was suddenly cancelled in early December 2008. Carey later stated that she had been pregnant during that time period, and suffered a miscarriage, hence she cancelled the tour. On January 20, 2009, Carey performed "Hero" at the Neighborhood Inaugural Ball after Barack Obama was sworn as the first African-American president of the United States. On July 7, 2009, Carey – alongside Trey Lorenz – performed her version of The Jackson 5 song "I'll Be There" at the memorial service for Michael Jackson. In 2009, she appeared as a social worker in Precious, the movie adaptation of the 1996 novel Push by Sapphire. The film garnered mostly positive reviews from critics, also for Carey's performance. Variety described her acting as "pitch-perfect." In January 2010, Carey won the Breakthrough Actress Performance Award for her role in Precious at the Palm Springs International Film Festival. On September 25, 2009, Carey's twelfth studio album, Memoirs of an Imperfect Angel, was released. Reception for the album was mostly mixed; Stephen Thomas Erlewine of AllMusic called it "her most interesting album in a decade," while Jon Caramanica from The New York Times criticized Carey's vocal performances, decrying her overuse of her softer vocal registers at the expense of her more powerful lower and upper registers. Commercially, the album debuted at number three on the Billboard 200, and became the lowest-selling studio album of her career. The album's lead single, "Obsessed", debuted at number eleven and peaked at number seven on the chart, and became Carey's 27th US top-ten hit, tying her with Elton John and Janet Jackson as the fifth most top-ten hits. The album's follow-up single, a cover of Foreigner's "I Want to Know What Love Is", managed to break airplay records in Brazil. The song spent 27 weeks atop the Brasil Hot 100 Airplay, making it the longest running song in the chart's history. On December 31, 2009, Carey embarked on her seventh concert tour, Angels Advocate Tour, which visited the United States and Canada and ended on September 26, 2010. A planned remix album of Memoirs of an Imperfect Angel; titled Angels Advocate was slated for a March 30, 2010 release, but was eventually cancelled. 2010–2014: Merry Christmas II You and Me. I Am Mariah... The Elusive Chanteuse Following the cancellation of Angels Advocate, it was announced that Carey would return to the studio to start work on her thirteenth studio album. It was later revealed that it would be her second Christmas album, and follow-up to Merry Christmas. Longtime collaborators for the project included Jermaine Dupri, Johntá Austin, Bryan-Michael Cox, and Randy Jackson, as well as new collaborators such as Marc Shaiman. The release date for the album, titled Merry Christmas II You, was November 2, 2010; the track list included six new songs as well as a remix of "All I Want for Christmas Is You". Merry Christmas II You debuted at number four on the Billboard 200 with sales of 56,000 copies, becoming Carey's 16th top ten album in the United States. The album debuted at number one on the R&B/Hip-Hop Albums chart, making it only the second Christmas album to top this chart. In May 2010, Carey dropped out of her planned appearance in For Colored Girls, the film adaptation of the play For Colored Girls Who Have Considered Suicide When the Rainbow Is Enuf, citing medical reasons. In February 2011, Carey announced that she had begun writing new material for her upcoming fourteenth studio album. Carey recorded a duet with Tony Bennett for his Duets II album, titled "When Do The Bells Ring For Me?" In October 2011, Carey announced that she re-recorded "All I Want for Christmas Is You" with Justin Bieber as a duet for his Christmas album, Under the Mistletoe. In November 2011, Carey was included in the remix to the mixtape single "Warning" by Uncle Murda; the remix also features 50 Cent and Young Jeezy. That same month, Carey released a duet with John Legend titled "When Christmas Comes", originally part of Merry Christmas II You. On March 1, 2012, Carey performed at New York City's Gotham Hall; her first time performing since pregnancy. She also performed a three-song set at a special fundraiser for U.S. President Barack Obama held in New York's Plaza Hotel. A new song titled "Bring It On Home", which Carey wrote for the event to show her support for Obama's re-election campaign, was also performed. In August 2012, she released a stand-alone single, "Triumphant (Get 'Em)", featuring rappers Rick Ross and Meek Mill and co-written and co-produced by Carey, Jermaine Dupri, and Bryan-Michael Cox. Carey joined the judging panel of the twelfth season of American Idol as Jennifer Lopez's replacement, joining Randy Jackson, Nicki Minaj and Keith Urban. Throughout the show there were on-set disagreements between Minaj and Carey. Three years later, Carey did not make an appearance for its original series finale. Carey appeared in Lee Daniels' 2013 film The Butler, about a White House butler who served eight American presidents over the course of three decades. Carey made guest voice-star as a redneck character on the adult animated series American Dad! on November 24, 2013. In February 2013, Carey recorded and released a song called "Almost Home", for the soundtrack of the Walt Disney Studios film Oz the Great and Powerful. The video was directed by photographer David LaChapelle. For her 14th album, Carey worked with producers including DJ Clue?, Randy Jackson, Q-Tip, R. Kelly, David Morales, Loris Holland, Stevie J, James Fauntleroy II, Ray Angry, Afanasieff, Dupri, Bryan-Michael Cox, James "Big Jim" Wright, Hit-Boy, The-Dream, Da Brat, and Rodney Jerkins. Carey told Billboard: "It's about making sure I have tons of good music, because at the end of the day that's the most important thing... There are a lot more raw ballads than people might expect...there are also uptempo and signature-type songs that represent [my] different facets as an artist." The lead single, "Beautiful" featuring singer Miguel, was released on May 6, 2013, and peaked at number 15 on the Hot 100. Carey taped a performance of "Beautiful" along with a medley of her greatest hits on May 15, 2013; the taping aired on the American Idol finale the following day. On October 14, 2013, Carey announced that the album's former title track has been chosen as the second single; it premiered via Facebook on November 11, 2013. During a Q&A session following the song's release, Carey gave an update about the album, stating: "Now I've been inspired to add two more songs, so we're almost there. I can't even express this properly but I feel like this is gonna be my favorite album." Following another song release, "You're Mine (Eternal)", it was announced that The Art of Letting Go would no longer be the title of the album. After the final name was announced, Me. I Am Mariah... The Elusive Chanteuse was released on May 27, 2014. In October 2014, Carey announced All I Want For Christmas Is You, A Night of Joy & Festivity, an annual residency show at the Beacon Theatre in New York City. The first leg included six shows, running from December 15 to 22, 2014. Carey announced the second leg in October 2015. The second leg ran for 8 shows, from December 8–18, 2015. 2015–2017: Las Vegas residency, television and film projects On January 30, 2015, it was announced that Carey had left Universal Music Group's Def Jam Recordings to reunite with L.A. Reid and Sony Music via Epic Records. Carey also announced her new #1 to Infinity residency at The Colosseum at Caesars Palace in Las Vegas the same month. To coincide with the residency, Carey released #1 to Infinity, a greatest hits compilation album containing all of her eighteen Billboard Hot 100 number one singles at the time, along with a new recording, "Infinity", which was released as a single on April 27. In 2015 Carey had her directorial debut for the Hallmark Channel Christmas movie A Christmas Melody, in which she also performed as one of the main characters. Filming for the project took place during October 2015. In December 2015, Carey announced The Sweet Sweet Fantasy Tour which spanned a total of 27-dates beginning in March 2016, marking Carey's first major tour of mainland Europe in 13 years. Four stops included shows in South Africa. The tour grossed $30.3 million. On March 15, 2016, Carey announced that she was filming Mariah's World, a docu-series for the E! network documenting her Sweet Sweet Fantasy tour and her wedding planning process. Carey told The New York Times, "I thought it would be a good opportunity to kind of, like, show my personality and who I am, even though I feel like my real fans have an idea of who I am... A lot of people have misperceptions about this and that." The series premiered on December 4, 2016. Carey guest starred on the musical drama Empire, as a superstar singer named Kitty and sung the song "Infamous" featuring Jussie Smollett. On December 5, 2016, Carey participated in the VH1 Divas Holiday: Unsilent Night benefit concert, alongside Vanessa Williams, Chaka Khan, Patti Labelle, and Teyana Taylor. On December 31, 2016, Carey's performance on Dick Clark's New Year's Rockin' Eve in Times Square received worldwide attention after technical difficulties caused Carey's in-ear monitors to malfunction, resulting in what The New York Times referred to as a "performance train wreck." Carey cited her inability to hear the music without in-ear auditory feedback as the cause for the mishap. Carey's representatives and Dick Clark Productions placed blame on each other. On February 3, 2017, Carey released the single "I Don't" featuring YG. Later that month, she voiced the Mayor of Gotham City in the animated film The Lego Batman Movie. In July 2017, Carey made a cameo in the comedy film Girls Trip, starring Queen Latifah, Jada Pinkett Smith, Regina Hall, and Tiffany Haddish. The same month, Carey embarked on a tour with Lionel Richie, titled, All the Hits Tour. Carey was also featured in the official remix for French Montana's single "Unforgettable", alongside Swae Lee. In October 2017, she released a new soundtrack single, "The Star", for the movie of the same name. Carey also developed an animated Christmas film, titled Mariah Carey's All I Want For Christmas Is You, for which she recorded an original song called "Lil' Snowman." The film was released direct-to-video on November 14, 2017. In the same month, Carey resumed her All I Want for Christmas Is You, a Night of Joy and Festivity concert series, which for the first time visited other countries including England and France. On December 31, 2017, Carey returned to perform on Dick Clark's New Year's Rockin' Eve after the technical difficulties that hindered her previous performance, in what The New York Times described as a "made-for-television act of pop culture redemption". 2018–2019: Caution and Merry Christmas reissue In 2018, Carey signed a worldwide deal with Live Nation Entertainment. The first commitment out of the deal was her new Las Vegas residency, The Butterfly Returns, which was launched in July 2018 to critical acclaim. Its first 12 shows in 2018 grossed $3.6 million, with dates later extending into 2019 and 2020. Following the residency, Carey embarked on her Mariah Carey: Live in Concert tour in Asia and returned to Europe with her All I Want for Christmas Is You concert series. In September 2018, Carey announced plans to release her fifteenth studio album later in the year. The project was announced alongside the release of a new song titled "GTFO", which she performed on September 21, 2018, when she headlined the 2018 iHeartRadio Music Festival. The album's lead single, "With You", was released in October and performed for the first time at the American Music Awards of 2018. The single became Carey's highest-charting non-holiday song on the US Adult Contemporary chart since "We Belong Together" in 2005. It was followed by a second single, "A No No". The album, titled Caution, was released on November 16, 2018, and received universal acclaim from critics. By December 2018, the album had been featured on numerous year-end lists by music critics and publications. In February 2019, Carey commenced the Caution World Tour in support of the album. Later that year, Carey engaged in a series of business and television ventures. On May 29, 2019, the film Always Be My Maybe, inspired by the song "Always Be My Baby", was published on Netflix. On September 18, 2019, Carey released "In the Mix", the theme song for the ABC sitcom Mixed-ish. On November 1, 2019, Carey re-released her holiday album Merry Christmas for its 25th anniversary. The album package included the original album and another disc which include live performances from Carey's 1994 concert at St. John the Divine Church, several tracks from Merry Christmas II You, as well as other stand-alone singles such as "Lil Snowman" and "The Star". On December 5, 2019, it was announced that a mini-documentary charting the creation and subsequent cultural legacy of "All I Want for Christmas Is You" was to be produced and broadcast on Amazon Music; it aired later that month. Peaking at number one on the Billboard Hot 100 for the first time the same year, the song ended up giving Carey her nineteenth chart-topper in the US. 2020–present: The Rarities and The Meaning of Mariah Carey In January 2020, it was announced that Carey would be inducted into the Songwriters Hall of Fame during that year's ceremony on June 11, 2020 at the Marriott Marquis Hotel in New York City. Her memoir, The Meaning of Mariah Carey, co-written with Michaela Angela Davis, was published the following September. It recounts an "improbable and inspiring journey of survival and resilience as she struggles through complex issues of race, identity, class, childhood, and family trauma during her meteoric rise to music superstardom". The memoir became a number one New York Times Best Seller after its first week of release. Carey announced plans to celebrate the 30th anniversary of her debut album through the rest of 2020, in a promotional campaign billed "#MC30". The first release consisted of the live EP The Live Debut – 1990 which was released on July 17, 2020. The digital-only release includes live performances from Carey's debut showcase at New York City's Club Tatou on October 22, 1990. On September 13, 2020, she released the music video for "Save the Day" as part of the airing of the U.S. Open. Four days later, the album's second single—a cover of Irene Cara's "Out Here on My Own"—was released after Carey originally it recorded in 2000. On October 2, 2020, Carey released a compilation album called The Rarities, following a lead single "Save the Day" featuring Lauryn Hill released on August 20. The album includes rare and unreleased songs that Carey recorded at various stages of her career. At the end of the same month, Carey was featured on the track "Where I Belong" from Busta Rhymes' album Extinction Level Event 2: The Wrath of God. Carey's 2020 Christmas special, Mariah Carey's Magical Christmas Special, premiered on December 4, 2020 on Apple TV+ along with a soundtrack. The special featured guests, including Ariana Grande, Jennifer Hudson, Snoop Dogg, Misty Copeland, Jermaine Dupri, and Mykal-Michelle Harris. A new version of Carey's 2010 song "Oh Santa!", featuring guest vocals from Grande and Hudson, was released as a single the same day, and peaked at No. 76 on the Billboard Hot 100. One week later, "All I Want for Christmas Is You" topped the UK charts for the first time after spending a record 69 weeks in its top 40 prior to reaching the summit, becoming Carey's third number-one song in the country. On June 2, 2021, Carey was featured on a new single with Jimmy Jam and Terry Lewis, titled "Somewhat Loved", from their debut studio album Jam & Lewis: Volume One. On November 2, 2021, Carey teased a snippet of a new song titled "Fall in Love at Christmas", which features Khalid and Kirk Franklin. The single was released on November 5 and performed on a new Christmas special titled Mariah's Christmas: The Magic Continues. On January 12, 2022, Carey announced a new picture book titled The Christmas Princess, co-written with Michaela Angela Davis and illustrated by Fuuji Takashi. Artistry Influences Carey has said that from childhood she has been influenced by Billie Holiday, Sarah Vaughan, and R&B and soul musicians such as Al Green, Stevie Wonder, Gladys Knight and Aretha Franklin. Her music contains strong influences of gospel music, and she credits the Clark Sisters, Shirley Caesar and Edwin Hawkins as the most influential in her early years. When Carey incorporated hip hop into her sound, speculation arose that she was making an attempt to take advantage of the genre's popularity, but she told Newsweek, "People just don't understand. I grew up with this music." She has expressed appreciation for rappers such as the Sugarhill Gang, Eric B. & Rakim, the Wu-Tang Clan, The Notorious B.I.G. and Mobb Deep, with whom she collaborated on the single "The Roof (Back in Time)" (1998). Carey was heavily influenced by Minnie Riperton, and began experimenting with the whistle register due to her original practice of the range. During Carey's career, her vocal and musical style, along with her level of success, has been compared to Whitney Houston, whom she has also cited as an influence, and Celine Dion. Carey and her peers, according to Garry Mulholland, are "the princesses of wails ... virtuoso vocalists who blend chart-oriented pop with mature MOR torch song." Author and writer Lucy O'Brien attributed the comeback of Barbra Streisand's "old-fashioned showgirl" to Carey and Dion, and described them and Houston as "groomed, airbrushed and overblown to perfection." Carey's musical transition and use of more revealing clothing during the late 1990s were, in part, initiated to distance herself from this image, and she subsequently said that most of her early work was "schmaltzy MOR." Some have noted that unlike Houston and Dion, Carey writes and produces her own music. Musical style Love is the subject of the majority of Carey's lyrics, although she has written about themes such as loss, sex, race, abuse and spirituality. She has said that much of her work is partly autobiographical, but Time magazine's Christopher John Farley wrote: "If only Mariah Carey's music had the drama of her life. Her songs are often sugary and artificial—NutraSweet soul. But her life has passion and conflict," applying it to the first stages of her career. He commented that as her albums progressed, so too her songwriting and music blossomed into more mature and meaningful material. Jim Faber of the New York Daily News, made similar comments, "For Carey, vocalizing is all about the performance, not the emotions that inspired it. Singing, to her, represents a physical challenge, not an emotional unburdening." While reviewing Music Box, Stephen Holden from Rolling Stone commented that Carey sang with "sustained passion," while Arion Berger of Entertainment Weekly wrote that during some vocal moments, Carey becomes "too overwhelmed to put her passion into words." In 2001, The Village Voice wrote in regards to what they considered Carey's "centerless ballads," writing, "Carey's Strawberry Shortcake soul still provides the template with which teen-pop cuties draw curlicues around those centerless [Diane] Warren ballads [.....] it's largely because of [Blige] that the new R&B demands a greater range of emotional expression, smarter poetry, more from-the-gut testifying, and less [sic] unnecessary notes than the squeaky-clean and just plain squeaky Mariah era. Nowadays it's the Christina Aguileras and Jessica Simpsons who awkwardly oversing, while the women with roof-raising lung power keep it in check when tune or lyric demands." Carey's output makes use of electronic instruments such as drum machines, keyboards and synthesizers. Many of her songs contain piano-driven melodies, as she was given piano lessons when she was six years old. Carey said that she cannot read sheet music and prefers to collaborate with a pianist when composing her material, but feels that it is easier to experiment with faster and less-conventional melodies and chord progressions using this technique. While Carey learned to play the piano at a young age, and incorporates several ranges of production and instrumentation into her music, she has maintained that her voice has always been her most important asset: "My voice is my instrument; it always has been." Carey began commissioning remixes of her material early in her career and helped to spearhead the practice of recording entirely new vocals for remixes. Disc jockey David Morales has collaborated with Carey on several occasions, starting with "Dreamlover" (1993), which popularized the tradition of remixing R&B songs into house records, and which Slant magazine named one of the greatest dance songs of all time. From "Fantasy" (1995) onward, Carey enlisted both hip-hop and house producers to re-structure her album compositions. Entertainment Weekly included two remixes of "Fantasy" on a list of Carey's greatest recordings compiled in 2005: a National Dance Music Award-winning remix produced by Morales, and a Sean Combs production featuring rapper Ol' Dirty Bastard. The latter has been credited with popularizing the R&B/hip-hop collaboration trend that has continued into the 2000s, through artists such as Ashanti and Beyoncé. Combs said that Carey "knows the importance of mixes, so you feel like you're with an artist who appreciates your work—an artist who wants to come up with something with you." In an article in The New York Times, writer David Browne discusses how the once-ubiquitous melisma pop style was heavily popularized by singers such as Carey. Browne commented, "beginning [in 1990], melisma overtook pop in a way it hadn't before. Mariah Carey's debut hit from 1990, "Vision of Love", [set] the bar insanely high for notes stretched louder, longer and knottier than most pop fans had ever heard." Browne further added "A subsequent generation of singers, including Ms. Aguilera, Jennifer Hudson and Beyoncé, built their careers around melisma. (Men like Brian McKnight and Tyrese also indulged in it, but women tended to dominate the form.)" Voice and timbre Carey possesses a five-octave vocal range, and has the ability to reach notes beyond the seventh octave. Referred to as the "Songbird Supreme" by the Guinness World Records, she was ranked first in a 2003 MTV and Blender magazine countdown of the 22 Greatest Voices in Music, as voted by a combination of critics and readers in an online poll. Carey said of the poll: "What it really means is voice of the MTV generation. Of course, it's an enormous compliment, but I don't feel that way about myself." She also placed second in Cove magazine's list of "The 100 Outstanding Pop Vocalists." Regarding her voice type, Carey has said she is an contralto, although several critics have described her as a coloratura light lyric soprano. Carey claims that she has had nodules on her vocal cords since childhood, due to which she can sing in a higher register than others. However, tiredness and sleep deprivation can affect her vocals due to the nodules, and Carey explained that she went through a lot of practice to maintain a balance during singing. Carey stated in a 2021 interview with the Daily Express that with her voice, it's all about "timing, vocal rest and sleep". Jon Pareles of The New York Times described Carey's lower register as a "rich, husky alto" that extends to "dog-whistle high notes." Additionally, towards the late 1990s, Carey began incorporating breathy vocals into her material. Tim Levell from BBC News described her vocals as "sultry close-to-the-mic breathiness," while USA Todays Elysa Gardner wrote "it's impossible to deny the impact her vocal style, a florid blend of breathy riffing and resonant belting, has had on today's young pop and R&B stars." Sasha Frere-Jones of The New Yorker adds her timbre possesses various colors, stating, "Carey's sound changes with nearly every line, mutating from a steely tone to a vibrating growl and then to a humid, breathy coo. Her wide vocal range allows Carey to take melodies from alto bottom notes to coloratura soprano upper register." Carey also possesses a "whistle register." In an interview, Ron Givens of Entertainment Weekly described it this way, "first, a rippling, soulful ooh comes rolling effortlessly from her throat: alto. Then, after a quick breath, she goes for the stratosphere, with a sound that nearly changes the barometric pressure in the room. In one brief swoop, she seems to squeal and roar at the same time." Her sense of pitch is admired and Jon Pareles adds "she can linger over sensual turns, growl with playful confidence, syncopate like a scat singer... with startlingly exact pitch." Stage performances and videos Despite being called a "show stopper" and "the 1990s pop phenomenon", Carey suffered from stage fright in her early years in the music industry. One of her earliest performances was at MTV Unplugged, which received positive reception as Carey silenced critics saying her vocals were studio-made. Carey's "The Star-Spangled Banner" rendition at the Super Bowl XXXVI was called "stunning" by Billboard. She also performed "America the Beautiful" at the 1990 NBA Finals in which Rolling Stone writer, Brittany Spanos, stated the players were struck "with awe by the incredible talent of a burgeoning young star". The singer received the only standing ovation of the night at the 47th Annual Grammy Awards, after performing the medley of "We Belong Together and "Fly Like a Bird". Carey is known for being very static during her live performances; some reviewers credited her stage fright and lack of confidence as the reasoning, while others pointed out that her performances focus on her vocals and the quality of her songs. Her onstage hand gesticulations have usually been mimicked, as the singer has a tendency for "using her hands to point, flutter and sweep through the air as she deftly crests each run". When reviewing Carey's 2014 concert, Michael Lallo wrote that "If you're Mariah, you ... stroke your hair a lot. When a high note is on the horizon, you brace yourself by touching your ear and adopting a pained expression, provoking the crowd into losing its collective mind." The music video for "Fantasy" was the first that Carey directed entirely on her own. Carey had been open about the fact that she had not been happy with some of her previous music videos, and has subsequently been noted for self-directing and co-producing her subsequent videography. The song "Honey" pushed Carey further towards hip hop and R&B than before. The music video gained further attention, as Carey, for the first time in her career, was provocatively dressed, giving viewers a "taste of the freer Mariah." Billboard ranked Carey 73rd on its list of "The 100 Greatest Music Video Artists of All Time" in 2020, stating that "over three decades, [Carey] has gone from breezy girl next door, flaunting a denim collection as wide as her vocal range, to secret agent, runaway bride and even her own stalker in a collection of music videos that play like mini-dramas". The music video for "The Roof" was ranked 18th on Slant Magazine's "100 Greatest Music Videos. The music video for "Heartbreaker" remains one of the most expensive ever made, costing over $2.5 million. In 2021, Carey was honoured at the African American Film Critics Association with a Special Achievement Innovator Award for her "visual storytelling in her music videos and specials". Impact The impact of Carey's artistry has helped popularize rappers as a featured act in pop music through her post-1995 songs. She has been called the "Queen of Remixes" by multiple media sources, with MTV writer, Princess Gabbara, noting that it is "no secret that [Carey] goes to great lengths to deliver a spectacular remix, often re-recording vocals, penning new lyrics, shooting new music videos, and recording different versions to satisfy pop, R&B, hip-hop, and EDM audiences". Sasha Frere-Jones, editor of The New Yorker commented, "It became standard for R&B/hip-hop stars like Missy Elliott and Beyoncé, to combine melodies with rapped verses. And young white pop stars—including Britney Spears, Jessica Simpson, Christina Aguilera, and 'N Sync—have spent much of the past ten years making pop music that is unmistakably R&B." Moreover, Jones concludes that "[Carey's] idea of pairing a female songbird with the leading male MCs of hip-hop changed R&B and, eventually, all of pop. Although now anyone is free to use this idea, the success of The Emancipation of Mimi suggests that it still belongs to Carey." Judnick Mayard, writer of The Fader, wrote that in regarding of R&B and hip hop collaboration, "The champion of this movement is Mariah Carey." Mayard also expressed that "To this day ODB and Mariah may still be the best and most random hip hop collaboration of all time," citing that due to the record "Fantasy", "R&B and Hip-Hop were the best of step siblings." Kelefa Sanneh of The New York Times wrote, "In the mid-1990s Ms. Carey pioneered a subgenre that some people call the thug-love duet. Nowadays clean-cut pop stars are expected to collaborate with roughneck rappers, but when Ms. Carey teamed up with Ol' Dirty Bastard, of the Wu-Tang Clan, for the 1995 hit remix of "Fantasy", it was a surprise, and a smash." In a review of her Greatest Hits album, Devon Powers of PopMatters writes that "She has influenced countless female vocalists after her. At 32, she is already a living legend—even if she never sings another note." Vulture magazine writer Craig Jenkins pointed out that some of Ariana Grande's songs reminisced on Carey's work in the late '90s where she managed to bend and combine hip-hop, pop, and R&B sounds. Speaking to Billboard in 2019 for a profile of Carey's career, David Morales, who first collaborated with Carey on the Def Club Mix of her 1993 single "Dreamlover", commented on Carey's revolutionary role in the popularization of remixes: "Mariah opened up a whole other door, and not many people at that time were capable of that. When other big artists saw what I did with Mariah, they wanted that. She's how I got into the studio with Toni Braxton, Aretha Franklin, Seal and Donna Summer." Image Carey has been called a pop icon and has been labeled a "diva" for her stardom and persona. She stated, "I have had diva moments, and then people can't handle it. I guess it's a little intense, because I come from a true diva: My mother is an opera singer. And that's a real diva, you know - Juilliard diva. And I mean it as a compliment, or I wouldn't be the person I am without experiencing that." Carey's fanbase is known as the "Lambily", a portmanteau of "lamb" and "family". In 2008, Carey was named one of Times 100 most influential artists and entertainers in the world. NOW writer, Kevin Hegge, agreed that "Carey’s influence is indisputable". Carey was a "tabloid fixture in the early 2000's" and her public breakdown during the promotion of her 2001 film, Glitter, became the "stuff of tabloid legend" according to Justin Curto, writer for Vulture. Hegge also went on to say that in recent years, the public has dwelled more on Carey's celebrity drama stating that "Carey's every misstep and quirk has been scrutinized to a viral extent ... the public loves nothing more than to dismiss her as a dim-witted celebrity prop". After joining American Idol as a judge for the twelfth season, Carey became one of the highest paid American television stars. She has also been described as a sex symbol. The singer mentions Marilyn Monroe as one of her biggest idols and her "beauty icon", and she referenced Monroe in some of her music videos, such as "I Still Believe" or "Don't Forget About Us". As the biggest pop star in music by the mid-1990s, Carey's "first years as a pop star were extraordinarily fruitful but restrictive". In the late 1990s, after separating from Mottola, Carey adopted a more provocative and less conservative image than had been previously seen and began wearing more revealing clothes. Her album Butterfly has been credited for revamping Carey's image as a pop star where she began to embrace hip hop and R&B themes and fully come into her own self, resulting in butterflies becoming a metaphorical symbol of her impact and legacy upon pop and R&B music. Emilia Petrarca of W stated that "Carey is uber-cautious about cultivating her public image" but that when it comes to style, she is "more do than don’t". Fashion has also been a part of Carey's image. She was cited a fashion icon by Insider writer Susanna Heller who added that "her decadent closet spans multiple rooms and is full of designer clothing, lingerie, shoes, and accessories". CR Fashion Book writer Shepherd also stated that while her "sartorial aesthetic has shifted here and there ..., the music icon largely favors sexy, skin-baring, and often bedazzled looks. During her tours, she has frequently worn Jimmy Choo and Christian Louboutin high-end stiletto footwear, as well as leotards, corsets, and fishnet tights. Laura Antonia Jordan of Grazia called Carey fashion "royalty" and stated that in the 1990s, her go-to looks were "super-tight silhouettes, cropped tops, thigh-grazing hemlines and dangerously high slits." Several media outlets have called Carey the "Queen of Shade". When asked about American singer Jennifer Lopez in a German TV interview, Carey's response was, "I don't know her". The clip became a viral internet meme and been brought back in many other interviews with both of the singers. After the release of "Obsessed", critics heavily compared its lyrics to Eminem who had negatively referenced her several times in songs, and suggested Carey alluded to him and his 'obsession' with her. "Obsessed" never mentions the rapper's name, although reviewers felt it to be very obvious. Additionally, Carey played a role that resembled the rapper in the song's accompanying music video. She is recognized as a gay icon and her song "Hero" is regarded as an anthem among the gay community as it touches upon themes of embracing individuality and overcoming self-doubt. According to Carey herself, a lot of her gay fans admitted to also be growing up listening to her song "Outside" and relating to the feeling of isolation and unfitting. Her diva persona has also given her much admiration from gay fans. Carey was honored by GLAAD in 2016 with the "GLAAD Ally Award" for which she expressed gratitude to her LGBT+ fans. In her speech she thanked the community, "For the unconditional love ... I wish all of you love, peace, [and] harmony". "All I Want for Christmas Is You", as well as her 1994 album Merry Christmas, have become such a ubiquitous part of wider popular culture that Carey has been dubbed the "Queen of Christmas". The album is credited as being the greatest selling Christmas album of all time. Both the song and album have been hailed as being "one of the few worthy modern additions to the holiday canon" by publications such as The New Yorker. Speaking to Vogue in 2015 about "All I Want For Christmas Is You", Elvis Duran stated that the song's appeal was based on the fact that it was "a modern song that could actually have been a hit back in the '40s", praising its "timeless, classic quality". The success of the song, in particular, has led Carey to build what Billboard described as a "growing holiday mini-empire". Legacy Carey's vocal style, as well as her singing ability, have significantly impacted popular and contemporary music. She has been considered one of the greatest vocalists of all time. As music critic G. Brown from The Denver Post wrote, "For better or worse, Mariah Carey's five-octave range and melismatic style have influenced a generation of pop singers." One of Carey's biggest milestones has been to "close out the '90s on a very high note" after being named Billboard's artist of the decade in 1999. MTV writer Erika Harwood wrote that "she is also known for ruling the '90's from fashion to music." According to Rolling Stone, "Her mastery of melisma, the fluttering strings of notes that decorate songs like "Vision of Love", inspired the entire American Idol vocal school, for better or worse, and virtually every other female R&B singer since the Nineties." In 2008, Jody Rosen of Slate wrote of Carey's influence in modern music, calling her the most influential vocal stylist of the last two decades, the person who made rococo melismatic singing. Rosen further exemplified Carey's influence by drawing a parallel with American Idol, which to her, "often played out as a clash of melisma-mad Mariah wannabes. And, today, nearly 20 years after Carey's debut, major labels continue to bet the farm on young stars such as the winner of Britain's X Factor show, Leona Lewis, with her Generation Next gloss on Mariah's big voice and big hair." New York Magazines editor Roger Deckker further commented that "Whitney Houston may have introduced melisma (the vocally acrobatic style of lending a word an extra syllable or twenty) to the charts, but it was Mariah—with her jaw-dropping range—who made it into America's default sound." Deckker also added that "Every time you turn on American Idol, you are watching her children." As Professor Katherine L. Meizel noted in her book, The Mediation of Identity Politics in American Idol, "Carey's influence not just stops in the emulation of melisma or her singing amongst the wannabe's, it's also her persona, her diva, her stardom which inspires them... a pre-fame conic look." With her ability to do runs, scats, and incredible control using whistle register, Mariah Carey is credited for popularizing this technique in mainstream music. She has been referred to as the "Songbird Supreme", and a lot of singers possessing the whistle register, such as Ariana Grande, Christina Aguilera, Morissette Amon, and Eden Alene, have cited Carey as one of their main vocal influences. In addition to her vocal ability, Carey has been credited for her role and impact as a songwriter and producer. Upon honoring her with the "Icon Award" at their eponymous awards ceremony in 2012, Broadcast Music, Inc. (BMI) described Carey's songwriting as having a "unique and indelible influence on generations of music makers". Jeffrey Ingold of Vice hailed Carey's lyricism as being "among the most verbose in pop music", praising her ability to convey "nuanced stories about love, loss, sex, race and abuse" within her songs. Vice writer Kristin Corry also spoke on Carey's legacy stating that "when she entered the music world, [she] was a marketing dream" due to her transformative voice. Corry went on to say that "like many of the black women before her, Carey fought for creative control of her career" and that Carey brought "hip-hop to a pop audience not out of necessity, but because it was a part of her identity". Carey straddled herself between the "pop production of the early 90s" to find a sound that was not a "one-size-fits-all approach". Corry stated that her 1993 album Music Box "was proof she didn't falter when it came to keeping up with the times". She also called her "omnipresent" and that "beyond her unnatural ability to sing, the voice she possessed in her songwriting was equally as strong". Jeff Benjamin, Forbes writer, agreed with this saying that her songwriting is one aspect of her career which is commonly overlooked. According to Stevie Wonder, "When people talk about the great influential singers, they talk about Aretha, Whitney and Mariah. That's a testament to her talent. Her range is that amazing." Carey's songs have been recorded or performed by a variety of artists, including those of older generations, such as Aretha Franklin, Patti Labelle, Dolly Parton, Red Hot Chili Peppers, Shania Twain and Michael Ball. Carey has inspired singers and songwriters all over the world. Among other hip hop, pop, and R&B artists who have cited Carey as an influence are Adele, Aneeka, Ari Lennox, Ariana Grande, Ava Max, Beyoncé, Bonnie McKee, Brandy Norwood, Bridgit Mendler, Britney Spears, Christina Aguilera, Grimes, Hikaru Utada, Jake Zyrus, Jessica Sanchez, Jessica Simpson, Jordin Sparks, Justin Bieber, Katy Perry, Kelela, Kehlani, Kelly Clarkson, Kiana Lede, Lady Gaga, Leona Lewis, Mary J. Blige, Megan Rochell Melanie Fiona, Missy Elliott, Nelly Furtado, Nicki Minaj, Normani, Pink, Regine Velasquez, Rihanna, Sam Smith, Sandy, and Sarah Geronimo. Numerous historians and social scientists have also credited Carey's outspokenness on her own multiracial heritage for facilitating public discourse surrounding race relations in the United States, as well as the advent of intersectional feminism, during the 1990s. As noted by Professor Michael Eric Dyson in his book, Between God and Gangsta Rap: Bearing Witness to Black Culture, Carey's "refusal to bow to public pressure" surrounding the nature of her ethnicity exposed "the messy, sometimes arbitrary, politics of definition and categorisation" and "the racial contradictions at the centre of contemporary pop music" at the time. Sika Dagbovie-Mullins of Florida Atlantic University further credited Carey as being a trailblazing "multiracial heroine", remarking upon her ability to both exploit and critique "the various manifestations of the mulatta stereotype" throughout her career. Achievements Throughout her career, Carey has earned numerous awards and honors. She has won five Grammy Awards, nineteen World Music Awards, ten American Music Awards, and fifteen Billboard Music Awards. She is also an inductee of the Songwriters Hall of Fame. As of May 2021, the Recording Industry Association of America (RIAA) lists Carey as the best-selling female artist (tied with Barbra Streisand), with shipments of over 68.5 million units in the US. The singer has amassed two diamond certified albums, Music Box and Daydream. Music Box has sold 28 million copies worldwide and remains one of the best-selling albums of all time. In August 2015, Carey was honored with a star on the Hollywood Walk of Fame. Carey has set and broken numerous Hot 100 records. She has topped the Billboard Hot 100 for 87 weeks, most for any artist in US chart history. On that same chart, she has accumulated 19 number-one singles, the most for any solo artist (second behind the Beatles) and she is also the only artist to have a number-one song in each year of a decade (1990s decade). In 2020, Carey became the first artist to top the Billboard Hot 100 over four decades (1990s, 2000s, 2010s and 2020s). Carey has also had three songs debut atop the Hot 100 chart with "Fantasy", "One Sweet Day" and "Honey". Carey was also the first female artist to debut at number one in the U.S. with "Fantasy". Her single "One Sweet Day", with Boyz II Men, spent sixteen consecutive weeks at the top of Billboards Hot 100 chart in 1996, setting the record for the most weeks atop the Hot 100 chart until surpassed in 2019 by "Old Town Road". In 2008, Billboard listed "We Belong Together" ninth on The Billboard Hot 100 All-Time Top Songs and second on Top Billboard Hot 100 R&B/Hip-Hop Songs. The song was also declared the most popular song of the 2000s decade by Billboard. On November 19, 2010, Billboard magazine ranked Carey at number four on their "Top 50 R&B/Hip-Hop Artists of the Past 25 Years" chart. In 2012, Carey was ranked second on VH1's list of the "100 Greatest Women in Music". Billboard magazine ranked her at number five on the Billboard Hot 100 All-Time Top Artists, making Carey the second most successful female artist in the history of the chart. The same publication ranked Carey at number four on their "Top 125 Artists of All Time" chart making her the top top female act. In 2021, "Fantasy" was included on the new edition of Rolling Stone magazine's list of "The 500 Greatest Songs of All Time" at number 419. Carey's holiday album Merry Christmas has sold over 15 million copies worldwide, and is the best-selling Christmas album of all time. It also produced the successful single "All I Want for Christmas Is You", which became the first holiday song to be certified Diamond by the Recording Industry Association of America, and the only holiday ringtone to reach multi-platinum status in the US. As of 2020, it has topped the Billboard Holiday 100 chart for a record-extending 44 cumulative weeks, of the chart's 49 total weeks since the list launched in 2011; it has topped the tally for 29 consecutive weeks, dating to the start of the 2015-2016 holiday season. It is the longest running number one song on the Holiday 100 since the chart's launch in 2011. In 2018, Carey became the first artist to replace herself at the number one spot on Billboard's Top R&B Albums chart with Caution being replaced by Merry Christmas. On November 24, 2019, the song won three Guinness World Records. Additionally, it holds the record for the most Spotify streams in a single day (over 17 million plays on December 24, 2020). In 2021, the song earned one billion streams on Spotify, making it both Carey's first song and the first holiday song overall to do so. Carey experienced an enduring success in Asia, reaching a total of 30 million albums sold throughout the continent. She is the best selling non-Asian artist in Japan and her album #1's holds the record as the best-selling international album and is certified the triple-Million award. Music Box, Daydream, Butterfly and Merry Christmas all sold over 2 million copies in the country, with the latter one, being the fourth best-selling international album. Her song "All I Want for Christmas Is You" is the third best-selling song by a non-Asian artist. In 2018, Sony Music Asia Pacific presented Carey with a certificate of achievement for 1.6 billion sales units in Asia-Pacific. In 2009, Carey's cover of Foreigner's song "I Want to Know What Love Is" became the longest-running number-one song in Brazilian singles chart history, spending 27 consecutive weeks at number-one. Other activities Endorsements Declining offers to appear in commercials in the United States during her early career, Carey was not involved in brand marketing initiatives until 2006, when she participated in endorsements for Intel Centrino personal computers and launched a jewelry and accessories line for teenagers, Glamorized, in American Claire's and Icing stores. During this period, as part of a partnership with Pepsi and Motorola, Carey recorded and promoted a series of exclusive ringtones, including "Time of Your Life". She signed a licensing deal with the cosmetics company Elizabeth Arden, and in 2007, she released her own fragrance, "M". The Elizabeth Arden deal has netted her $150 million. For the fragrance, Carey won a Basenotes Fragrance Award for Best Celebrity Women's Fragrance as well as being nominated in three other categories. She has released a series of fragrances with Elizabeth Arden, including Luscious Pink (2008) and Forever (2009). On November 29, 2010, she debuted a collection on HSN, which included jewelry, shoes and fragrances. In November 2011, Carey was announced as "brand ambassador" for Jenny Craig which included "participation in a new company initiative ... public service announcements and community and education programs." In 2018, Carey featured in an advertisement for Hostelworld with the tagline "Even Divas are Believers". On August 25, 2019, Carey signed a $12 million contract with the Walkers crisps brand as part of their Christmas campaign and starred in a commercial for the company. In conjunction with the 25th anniversary release of Merry Chritmas in 2019, she organized a gift guide with Amazon, and partnered for an exclusive Christmas ornament with Swarovski. In December 2020, Carey launched a partnership with Virtual Dining Concepts and restaurateur, Robert Earl, for a biscuit line titled Mariah's Cookies. In 2021, Carey announced the launch of a new line of alcohol called Black Irish, an homage to her Black, Venezuelan, and Irish heritage. That same year, Carey also partnered with McDonald's, promoting an entirely new limited time menu. Philanthropy and activism Carey is a philanthropist who has been involved with several charitable organizations. She became associated with the Fresh Air Fund in the early 1990s, and is the co-founder of a camp located in Fishkill, New York, that enables inner-city youth to embrace the arts and introduces them to career opportunities. The camp was called Camp Mariah "for her generous support and dedication to Fresh Air children," and she received a Congressional Horizon Award for her youth-related charity work. Carey has continued her direct involvement with Camp Mariah, and by 2019 the executive director of The Fresh Air Fund reported that "...the kids who have gone to Camp Mariah have higher graduation rates out of high school and college. In 1999, Carey was presented with a Congressional Award for contributing "to expanding opportunities for all Americans through their own personal contributions, and [setting] exceptional examples for young people through their own successes in life. In 2019, she was honoured by Varietys Power of Women for her work with The Fresh Air Fund's Camp Mariah. Carey also donated royalties from her hits "Hero" and "One Sweet Day" to charities. She has worked with the Make-A-Wish Foundation, and in November 2006 she was awarded the Foundation's Wish Idol for her "extraordinary generosity and her many wish granting achievements." Carey has volunteered for the Police Athletic League of New York City and contributed to the obstetrics department of New York Presbyterian Hospital Cornell Medical Center. A percentage of the sales of MTV Unplugged was donated to various other charities. In 2008, Carey was named Hunger Ambassador of the World Hunger Relief Movement. In February 2010, the song, "100%", which was originally written and recorded for the film, Precious, was used as one of the theme songs for the 2010 Winter Olympics, with all money proceeds going to Team USA. Carey is also a supporter and advocate for the LGBT community, and was honored with the "Ally Award" at the 27th GLAAD Media Awards in May 2016. The award is presented to media figures who have "consistently used their platform to support and advance LGBT equality and acceptance". One of Carey's most high-profile benefit concert appearances was on VH1's 1998 Divas Live special, during which she performed alongside other female singers in support of the Save the Music Foundation. The concert was a ratings success, and Carey participated in the Divas 2000 special and a 2016 holiday edition. In 2007, the Save the Music Foundation honored Carey at their tenth gala event for her support towards the foundation since its inception. She appeared at the America: A Tribute to Heroes nationally televised fundraiser in the aftermath of the September 11 attacks, and in December 2001, she performed before peacekeeping troops in Kosovo. Carey hosted the CBS television special At Home for the Holidays, which documented real-life stories of adopted children and foster families. In 2005, Carey performed for Live 8 in London and at the Hurricane Katrina relief telethon "Shelter from the Storm." In August 2008, Carey and other singers recorded the charity single, "Just Stand Up" produced by Babyface and L. A. Reid, to support Stand Up to Cancer. On March 29, 2020, Carey was one of the headliners for the iHeart Living Room Concert for America hosted by Elton John, where she performed her song "Always Be My Baby". The event raised over $8 million in the fight against COVID-19. Carey also was one of the headliners for the Rise Up New York! virtual hour-long telethon, hosted by actress Tina Fey. The event aired on May 12, 2020 and was intended to raise money for those affected by the COVID-19 pandemic. She performed her songs "Through the Rain" and "Make It Happen". The event raised over $115 million. In response to the murder of George Floyd, Carey took to social media and sang a snippet of her 1990 song "There's Got to Be a Way" while encouraging fans to demand justice for Floyd saying, "I wrote this song for my first album. Still looking for answers today. We have to make a change. We can't be silent." Controversies In 2008, Carey performed in a New Year's Eve concert for the family of Libyan dictator Muammar Gaddafi. She later said she felt "horrible and embarrassed" to have taken part in the concert. To make amends, in March 2011, Carey's representative Cindi Berger stated that royalties for the song "Save the Day", written for her fourteenth studio album, would be donated to charities that create awareness for human rights. Berger also said that Carey "has and continues to donate her time, money and countless hours of personal service to many organizations both here and abroad." "Save the Day" remained unreleased until 2020. In 2013, human rights activists criticized Carey for performing in a concert for Angola's "father-daughter kleptocracy" and accused her of accepting "dictator cash". In January 2019, Carey performed in Saudi Arabia, which drew backlash. Owen Jones of The Guardian observed that Carey has a large gay fanbase and that homosexuality in Saudi Arabia is punishable by death. She had been pressured to cancel the performance because of the murder of journalist Jamal Khashoggi and because of Saudi Arabia's imprisonment of feminists. In a statement to the Associated Press, Carey's publicist said: "Presented with the offer to perform for an international and mixed gender audience in Saudi Arabia, Mariah accepted the opportunity as a positive step towards the dissolution of gender segregation. ... As the first female international artist to perform in Saudi Arabia, Mariah recognizes the cultural significance of this event and will continue to support global efforts towards equality for all." Personal life Carey began dating Tommy Mottola while recording Mariah Carey, and they were married in New York City on June 5, 1993, in a half-million dollar ceremony at Saint Thomas Church. The newlyweds moved into a custom-built mansion referred to by Carey as "Sing Sing" located on a 51-acre estate in Bedford, New York, alluding to her feeling imprisoned there. After the release of Daydream and the success that followed, Carey began focusing on her personal life, which was a constant struggle at the time. Their relationship began to deteriorate due to their growing creative differences in terms of her music as well as Mottola's controlling nature. They announced their separation on May 30, 1997, and their divorce was finalized by the time Mottola remarried on December 2, 2000. In 1998, their home together was sold for $20.5 million to Nelson Peltz and burned down in 1999. Carey was in a relationship with singer Luis Miguel from 1998 to 2001. She met actor and comedian Nick Cannon while they shot the music video for her song "Bye Bye" on an island off the coast of Antigua. They were married on April 30, 2008 in the Bahamas. At 35 weeks into her pregnancy, she gave birth to their fraternal twins, Moroccan and Monroe, on April 30, 2011, via Cesarean section. Monroe is named after Marilyn Monroe and Moroccan is named after the Moroccan-decor room in Carey's apartment where Cannon proposed to her. In August 2014, Cannon confirmed he and Carey had separated. He filed for divorce on December 12, 2014. It was finalized in 2016. In 2015, Carey began dating Australian billionaire James Packer and, on January 21, 2016, she announced they were engaged. By October, however, they had called off the engagement. In October 2016, she began dating American choreographer Bryan Tanaka. Carey is an active Episcopalian. She stated in 2006: "I do believe that I have been born again in a lot of ways. I think what I've changed are my priorities and my relationships with God. I feel the difference when I don't have my private moments to pray. ... I'm a fighter, but I learned that I'm not in charge. Whatever God wants to happen is what's going to happen. I feel like I've had endless second, third, fourth, fifth and sixth chances. It's by the grace of God I'm still here." In April 2018, Carey opened up about taking therapy sessions and medication for her struggle with bipolar II disorder. She was diagnosed in 2001 and initially kept the diagnosis private. Discography Mariah Carey (1990) Emotions (1991) Music Box (1993) Merry Christmas (1994) Daydream (1995) Butterfly (1997) Rainbow (1999) Glitter (2001) Charmbracelet (2002) The Emancipation of Mimi (2005) E=MC² (2008) Memoirs of an Imperfect Angel (2009) Merry Christmas II You (2010) Me. I Am Mariah... The Elusive Chanteuse (2014) Caution (2018) Filmography The Bachelor (1999) Glitter (2001) WiseGirls (2002) Death of a Dynasty (2003) State Property 2 (2005) Tennessee (2008) You Don't Mess with the Zohan (2008) Precious (2009) The Butler (2013) A Christmas Melody (2015) Popstar: Never Stop Never Stopping (2016) The Keys of Christmas (2016) The Lego Batman Movie (2017) Girls Trip (2017) The Star (2017) All I Want for Christmas Is You (2017) Mariah Carey's Magical Christmas Special (2020) Tours and residencies Headlining tours Music Box Tour (1993) Daydream World Tour (1996) Butterfly World Tour (1998) Rainbow World Tour (2000) Charmbracelet World Tour (2003–2004) The Adventures of Mimi (2006) Angels Advocate Tour (2009–2010) Australian Tour 2013 (2013) The Elusive Chanteuse Show (2014) The Sweet Sweet Fantasy Tour (2016) Mariah Carey: Live in Concert (2018) Caution World Tour (2019) Co-headlining tours All the Hits Tour (with Lionel Richie) (2017) Residencies ''' Live at the Pearl (2009) All I Want for Christmas Is You: A Night of Joy and Festivity (2014–2019) #1 to Infinity (2015–2017) The Butterfly Returns (2018–2020) Written works See also List of best-selling singles List of best-selling albums List of best-selling music artists List of best-selling music artists in the United States List of Billboard Hot 100 chart achievements and milestones List of artists who reached number one on the Billboard Hot 100 List of artists who reached number one on the US dance chart Artists with the most number-ones on the US dance chart Notes References Sources Further reading Fred Bronson's Billboard Book of Number 1 Hits, 5th Edition () Joel Whitburn Presents the Billboard Hot 100 Charts: The Sixties () Joel Whitburn Presents the Billboard Hot 100 Charts: The Nineties () Additional information concerning Carey's chart history can be retrieved and verified in Billboard's'' online archive services and print editions of the magazine. External links 1969 births 20th-century African-American women singers 20th-century American actresses 21st-century African-American women singers 21st-century American actresses 21st-century American businesspeople 21st-century American businesswomen Actresses from New York (state) African-American actresses African-American Episcopalians African-American women singer-songwriters African-American women in business Age controversies American autobiographers American contemporary R&B singers American dance musicians American female hip hop singers American women pop singers American film actresses American hip hop singers American music arrangers American music video directors American people of Irish descent American people of Venezuelan descent American sopranos American soul singers American television actresses American voice actresses Ballad musicians Columbia Records artists Dance-pop musicians Def Jam Recordings artists Epic Records artists Female music video directors Golden Raspberry Award winners Grammy Award winners Hispanic and Latino American actresses Hispanic and Latino American women singers Island Records artists Living people Music video codirectors Participants in American reality television series People from Greenlawn, New York People with bipolar disorder Philanthropists from New York (state) Singer-songwriters from New York (state) Singers with a five-octave vocal range Virgin Records artists Women autobiographers World Music Awards winners Year of birth uncertain

19500

https://en.wikipedia.org/wiki/Mervyn%20Peake

Mervyn Peake

Mervyn Laurence Peake (9 July 1911 – 17 November 1968) was an English writer, artist, poet, and illustrator. He is best known for what are usually referred to as the Gormenghast books. The four works were part of what Peake conceived as a lengthy cycle, the completion of which was prevented by his death. They are sometimes compared to the work of his older contemporary J. R. R. Tolkien, but Peake's surreal fiction was influenced by his early love for Charles Dickens and Robert Louis Stevenson rather than Tolkien's studies of mythology and philology. Peake also wrote poetry and literary nonsense in verse form, short stories for adults and children (Letters from a Lost Uncle, 1948), stage and radio plays, and Mr Pye (1953), a relatively tightly-structured novel in which God implicitly mocks the evangelical pretensions and cosy world-view of the eponymous hero. Peake first made his reputation as a painter and illustrator during the 1930s and 1940s, when he lived in London, and he was commissioned to produce portraits of well-known people. For a short time at the end of World War II he was commissioned by various newspapers to depict war scenes. A collection of his drawings is still in the possession of his family. Although he gained little popular success in his lifetime, his work was highly respected by his peers, and his friends included Dylan Thomas and Graham Greene. His works are now included in the collections of the National Portrait Gallery, the Imperial War Museum and The National Archives. In 2008, The Times named Peake among their list of "The 50 greatest British writers since 1945". Early life Mervyn Peake was born of British parents in Kuling town located on top of Mountain Lu in Jiujiang in 1911, only three months before the revolution and the founding of the Republic of China. His father, Ernest Cromwell Peake, was a medical missionary doctor with the London Missionary Society of the Congregationalist tradition, and his mother, Amanda Elizabeth Powell, had come to China as a missionary assistant. The Peakes were given leave to visit England just before World War I in 1914 and returned to China in 1916. Mervyn Peake attended Tientsin Grammar School until the family left for England in December 1922 via the Trans-Siberian Railway. About this time, he wrote a novella, The White Chief of the Umzimbooboo Kaffirs. Peake never returned to China but it has been noted that Chinese influences can be detected in his works, not least in the castle of Gormenghast itself, which in some respects echoes the ancient walled city of Beijing, as well as the enclosed compound where he grew up in Tianjin. It is also likely that his early exposure to the contrasts between the lives of the Europeans and of the Chinese, and between the poor and the wealthy in China, also exerted an influence on the Gormenghast books. His education continued at Eltham College, Mottingham (1923–29), where his talents were encouraged by his English teacher, Eric Drake. Peake completed his formal education at Croydon School of Art in the autumn of 1929 and then from December 1929 to 1933 at the Royal Academy Schools, where he first painted in oils. By this time he had written his first long poem, A Touch o' the Ash. In 1931 he had a painting accepted for display by the Royal Academy and exhibited his work with the so-called "Soho Group". Career His early career in the 1930s was as a painter in London, although he lived on the Channel Island of Sark for a time. He first moved to Sark in 1932 where his former teacher Eric Drake was setting up an artists' colony. In 1934 Peake exhibited with the Sark artists both in the Sark Gallery built by Drake and at the Cooling Galleries in London, and in 1935 he exhibited at the Royal Academy and at the Leger Galleries in London. In 1936 he returned to London and was commissioned to design the sets and costumes for The Insect Play and his work was acclaimed in The Sunday Times. He also began teaching life drawing at Westminster School of Art where he met the painter Maeve Gilmore, whom he married in 1937. They had three children, Sebastian (1940–2012), Fabian (b. 1942), and Clare (b. 1949). He had a very successful exhibition of paintings at the Calmann Gallery in London in 1938 and his first book, the self-illustrated children's pirate romance Captain Slaughterboard Drops Anchor (based on a story he had written around 1936) was first published in 1939 by Country Life. In December 1939 he was commissioned by Chatto & Windus to illustrate a children's book, Ride a Cock Horse and Other Nursery Rhymes, published for the Christmas market in 1940. Enlistment At the outbreak of World War II he applied to become a war artist for he was keen to put his skills at the service of his country. He imagined An Exhibition by the Artist, Adolf Hitler, in which horrific images of war with ironic titles were offered as "artworks" by the Nazi leader. Although the drawings were bought by the British Ministry of Information, Peake's application was turned down and he was conscripted into the Army, where he served first with the Royal Artillery, then with the Royal Engineers. He began writing Titus Groan at this time. In April 1942, after his requests for commissions as a war artist – or even leave to depict war damage in London – had been consistently refused, he suffered a nervous breakdown and was sent to Southport Hospital. That autumn he was taken on as a graphic artist by the Ministry of Information for a period of six months to work on propaganda illustrations. The next spring he was invalided out of the Army. In 1943 he was commissioned by the War Artists' Advisory Committee, WAAC, to paint glassblowers at the Chance Brothers factory in Smethwick where cathode ray tubes for early radar sets were being produced. Peake was next given a full-time, three-month WAAC contract to depict various factory subjects and was also asked to submit a large painting showing RAF pilots being debriefed. Some of these paintings are on permanent display in Manchester Art Gallery whilst other examples are in the Imperial War Museum collection. Illustration and writing The five years between 1943 and 1948 were some of the most productive of his career. He finished Titus Groan and Gormenghast and completed some of his most acclaimed illustrations for books by other authors, including Lewis Carroll's The Hunting of the Snark (for which he was reportedly paid only £5) and Alice in Wonderland, Samuel Taylor Coleridge's The Rime of the Ancient Mariner, the Brothers Grimm's Household Tales, All This and Bevin Too by Quentin Crisp and Robert Louis Stevenson's Strange Case of Dr Jekyll and Mr Hyde, as well as producing many original poems, drawings, and paintings. Peake designed the logo for Pan Books. The publishers offered him either a flat fee of £10 or a royalty of one farthing per book. On the advice of Graham Greene, who told him that paperback books were a passing fad that would not last, Peake opted for the £10. A book of nonsense poems, Rhymes Without Reason, was published in 1944 and was described by John Betjeman as "outstanding". Shortly after the war ended in 1945, Edgar Ainsworth, the art editor of Picture Post, commissioned Peake to visit France and Germany for the magazine. With writer Tom Pocock he was among the first British civilians to witness the horrors of the Nazi concentration camp at Belsen, where the remaining prisoners, too sick to be moved, were dying before his very eyes. He made several drawings, but not surprisingly he found the experience profoundly harrowing, and expressed in deeply felt poems the ambiguity of turning their suffering into art. In 1946 the family moved to Sark, where Peake continued to write and illustrate, and Maeve painted. Gormenghast was published in 1950, and the family moved back to England, settling in Smarden, Kent. Peake taught part-time at the Central School of Art, began his comic novel Mr Pye, and renewed his interest in theatre. His father died that year and left his house in Hillside Gardens in Wallington, Surrey to Mervyn. Mr Pye was published in 1953, and he later adapted it as a radio play. The BBC broadcast other plays of his in 1954 and 1956. Later life In 1956 Mervyn and Maeve visited Spain, financed by a friend who hoped that Peake's health, which was already declining, would be improved by the holiday. That year his novella Boy in Darkness was published beside stories by William Golding and John Wyndham in a volume called Sometime, Never. On 18 December the BBC broadcast his radio play The Eye of the Beholder (later revised as The Voice of One) in which an avant-garde artist is commissioned to paint a church mural. Peake placed much hope in his play The Wit to Woo, which was finally staged in London's West End in 1957, but it was a critical and commercial failure. This affected him greatly – his health degenerated rapidly and he was again admitted to hospital with a nervous breakdown. Declining health He was showing unmistakable early symptoms of dementia, for which he was given electroconvulsive therapy, to little avail. Over the next few years he gradually lost the ability to draw steadily and quickly, although he still managed to produce some drawings with the help of his wife. Among his last completed works were the illustrations for Balzac's Droll Stories (1961) and for his own poem The Rhyme of the Flying Bomb (1962), which he had written some 15 years earlier. Titus Alone was published in 1959 and was revised in 1970 by Langdon Jones, editor of New Worlds, to remove apparent inconsistencies introduced by the publisher's careless editing. A 1995 edition of all three completed Gormenghast novels includes a very short fragment of the beginning of what would have been the fourth Gormenghast novel, Titus Awakes, as well as a listing of events and themes he wanted to address in that and later Gormenghast novels. Death Throughout the 1960s, Peake's health declined into physical and mental incapacitation, and he died on 17 November 1968 at a care home run by his brother-in-law, at Burcot, near Oxford. He was buried in the churchyard of St Mary's in the village of Burpham, Sussex. A 2003 study published in JAMA Neurology assessed that Peake's death was the result of dementia with Lewy bodies (DLB). His work, especially the Gormenghast series, became much better known and more widely appreciated after his death. They have since been translated into more than two dozen languages. Publications Six volumes of Peake's verse were published during his lifetime; Shapes & Sounds (1941), Rhymes without Reason (1944), The Glassblowers (1950), The Rhyme of the Flying Bomb (1962), Poems & Drawings (1965), and A Reverie of Bone (1967). After his death came Selected Poems (1972), followed by Peake's Progress in 1979 – though the Penguin edition of 1982, with many corrections, including a whole stanza inadvertently omitted from the hardback edition. The Collected Poems of Mervyn Peake was published by Carcanet Press in June 2008. Other collections include The Drawings of Mervyn Peake (1974), Writings and Drawings (1974), and Mervyn Peake: the man and his art (2006). An extremely expensive limited edition of the collected works, issued to celebrate Peake's centenary year, was published by Queen Anne Press, but the editing and reproduction of drawings did not match the price asked. Archive In 2010 an archive consisting of 28 containers of material, which included correspondence between Peake and Laurie Lee, Walter de la Mare and C. S. Lewis, plus 39 Gormenghast notebooks and original drawings for both Alice Through the Looking Glass and Alice's Adventures in Wonderland, was acquired by the British Library. Access to the Archive is available through the British Library website. In July 2020 the British Library acquired, from the Peake Estate, a visual archive consisting of 300 of Peake's original illustrations for children's stories, Gormenghast, and other works including Treasure Island. Commemoration Peake's three children presented on BBC Radio Four in 2018 a half-hour memoir of their father's life, emphasizing the importance of the island of Sark. The first blue plaque on Sark was unveiled in Peake's honour at the Gallery Stores in the Avenue on 30 August 2019. Dramatic adaptations of Peake's work In 1983, the Australian Broadcasting Corporation broadcast eight hour-long episodes for radio dramatising the complete Gormenghast Trilogy. This was the first to include the third book Titus Alone. In 1984, BBC Radio 4 broadcast two 90-minute plays based on Titus Groan and Gormenghast, adapted by Brian Sibley and starring Sting as Steerpike and Freddie Jones as the Artist (narrator). A slightly abridged compilation of the two, running to 160 minutes, and entitled Titus Groan of Gormenghast, was broadcast on Christmas Day, 1992. BBC 7 repeated the original versions on 21 and 28 September 2003. In 1986, Mr Pye was adapted as a four-part Channel 4 miniseries starring Derek Jacobi. In 2000, the BBC and WGBH Boston co-produced a lavish miniseries, titled Gormenghast, based on the first two books of the series. It starred Jonathan Rhys-Meyers as Steerpike, Neve McIntosh as Fuchsia, June Brown as Nannie Slagg, Ian Richardson as Lord Groan, Christopher Lee as Flay, Richard Griffiths as Swelter, Warren Mitchell as Barquentine, Celia Imrie as Countess Gertrude, Lynsey Baxter and Zoë Wanamaker as the twins Cora and Clarice, and John Sessions as Dr Prunesquallor. The supporting cast included Olga Sosnovska, Stephen Fry and Eric Sykes, and the series is also notable as the last screen performance by comedy legend Spike Milligan (as the Headmaster). A 30-minute TV short film A Boy in Darkness (also made in 2000 and adapted from Peake's novella) was the first production from the BBC Drama Lab. It was set in a "virtual" computer-generated world created by young computer game designers, and starred Jack Ryder (from EastEnders) as Titus, with Terry Jones (Monty Python's Flying Circus) narrating. Irmin Schmidt, founder of seminal German Krautrock group Can, wrote an opera called Gormenghast, based on the novels; it was first performed in Wuppertal, Germany, in November 1998. A number of early songs by New Zealand rock group Split Enz were inspired by Peake's work. The song "The Drowning Man", by British band The Cure, is inspired by events in Gormenghast, and the song "Lady Fuchsia" by another British band, Strawbs, is also based on events in the novels. Peake's play The Cave, which dates from the mid-1950s, was given a first public reading at the Blue Elephant Theatre in Camberwell (London) in 2009, and had its world premiere in the same theatre, directed by Aaron Paterson, on 19 October 2010. In 2011 Brian Sibley adapted the story again, this time as six one-hour episodes broadcast on BBC Radio 4 as the Classic Serial starting on 10 July 2011. The serial was titled The History of Titus Groan and adapted all three novels written by Mervyn Peake and the recently discovered concluding volume, Titus Awakes, completed by his widow, Maeve Gilmore. It starred Luke Treadaway as Titus, David Warner as the Artist and Carl Prekopp as Steerpike. It also starred Paul Rhys, Miranda Richardson, James Fleet, Tamsin Greig, Fenella Woolgar, Adrian Scarborough and Mark Benton among others. Sting owned the film rights to the Gormenghast novels for a brief period in the 1980s, during which he discussed the possibility of adapting the novels into a series of concept albums, but he abandoned the idea after declaring the Radio 4 audio drama as ideal. As of 2015, author Neil Gaiman was in talks to adapt the novels for the big screen. Bibliography Gormenghast Titus Groan (1946) Gormenghast (1950) Boy in Darkness (corrupt text 1956, corrected text 2007) Titus Alone (1959) Titus Awakes (2011, completed by Maeve Gilmore) Boy in Darkness and other stories (2007, the correct text and five other pieces) Other Works The White Chief of the Unzimbooboo Kaffirs (1921) Captain Slaughterboard Drops Anchor (1939) Shapes and Sounds (1941) Rhymes without Reason (1944) The Craft of the Lead Pencil (1946) Letters from a Lost Uncle (from Polar Regions) (1948) Drawings by Mervyn Peake (1949) The Glassblowers (1950) Mr Pye (1953) Figures of Speech (1954) The Rhyme of the Flying Bomb (1962) Poems and Drawings (1965) A Reverie of Bone and other Poems (1967) Selected Poems (1972) A Book of Nonsense (1972) The Drawings of Mervyn Peake (1974) Mervyn Peake: Writings and Drawings (1974) Twelve Poems (1975) Peake's Progress (1978) Ten Poems (1993) Eleven Poems (1995) The Cave (1996) Collected Poems (2008) Illustrated books Captain Slaughterboard Drops Anchor (by himself) (Country Life, 1939) Ride a Cock Horse and Other Nursery Rhymes (Chatto & Windus, 1940) The Adventures of The Young Soldier in Search of The Better World (by C.E.M. Joad) (Faber and Faber Ltd, 1943) The Book of Lyonne (by Burgess Drake) (The Falcon Press, 1952) Hunting of the Snark (by Lewis Carroll) Alice in Wonderland (by Lewis Carroll) The Rime of the Ancient Mariner (by Samuel Taylor Coleridge) Household Tales (by the Brothers Grimm) All This and Bevin Too (by Quentin Crisp) Dr Jekyll and Mr Hyde (by Robert Louis Stevenson) Treasure Island (by Robert Louis Stevenson) Droll Stories (by Balzac) (Folio Society, 1961) The Rhyme of the Flying Bomb (by himself) (1962) Titus Groan, Gormenghast, and Titus Alone (by himself; several editions include an abundance of illustrations, on plates in the center and/or distributed through the text) The Swiss Family Robinson (by Johann David Wyss) Quotations about Peake "Mervyn Peake is a finer poet than Edgar Allan Poe, and he is therefore able to maintain his world of fantasy brilliantly through three novels. [The Gormenghast trilogy] is a very, very great work … a classic of our age." — Robertson Davies "[Peake's books] are actual additions to life; they give, like certain rare dreams, sensations we never had before, and enlarge our conception of the range of possible experience." — C. S. Lewis "Fuchsia was my dream. This idea of the infinite, of the unreal, of the innocence dying..." — Robert Smith, 2003 (about the Peake character that inspired the early Cure song "The Drowning Man" in 1980) References Further reading Clements, Warren, ed. Peake Performance: The Magnificent Drawings of Mervyne Peake. Toronto: Nestlings Press, 2020. Winnington, G. Peter (ed.) (2006) Mervyn Peake: the man and his art. (London: Peter Owen) Winnington, G. Peter (2000) Vast Alchemies: the life and work of Mervyn Peake. Revised and enlarged in 2009 as Mervyn Peake's Vast Alchemies. (London: Peter Owen) Winnington, G. Peter (2006) The Voice of the Heart: the working of Mervyn Peake's imagination. (Liverpool U P / Chicago U P) Winnington, G. Peter. "Mervyn Peake's Lonely World". Wormwood No 3 (Autumn 2004), 1–21. Peake, Mervyn (ca.1950) 'Notes towards a Projected Autobiography', printed in Maeve Gilmore (ed.), Peake's Progress: Selected Writings and Drawings of Mervyn Peake (London: Allen Lane, 1978) "Peake in Print" is a full primary and secondary bibliography. External links Mervyn Peake – the official site Gormenghast – the official Gormenghast site the Peake entry in the Literary Encyclopedia Gormenghast Castle Self-portrait from the National Portrait Gallery collection Peake Studies – the periodical dedicated to Peake's life and work, with a complete Peake bibliography 1911 births 1968 deaths 20th-century British short story writers 20th-century English novelists 20th-century English poets 20th-century illustrators of fairy tales Academics of the Central School of Art and Design Alumni of Croydon College Artists from London British Army personnel of World War II British expatriates in China British war artists Deaths from Lewy body dementia English children's book illustrators English Congregationalists English fantasy writers English illustrators Gormenghast Modern artists Neurological disease deaths in England People educated at Eltham College People from Jiujiang World War II artists Writers of Gothic fiction Writers who illustrated their own writing Weird fiction writers Royal Artillery personnel Royal Engineers soldiers

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https://en.wikipedia.org/wiki/Martial%20arts

Martial arts

Martial arts are codified systems and traditions of combat practiced for a number of reasons such as self-defense; military and law enforcement applications; competition; physical, mental, and spiritual development; entertainment; and the preservation of a nation's intangible cultural heritage. Although the term martial art has become associated with the fighting arts of East Asia, it originally referred to the combat systems of Europe as early as the 1550s. The term is derived from Latin and means "arts of Mars", the Roman god of war. Some authors have argued that fighting arts or fighting systems would be more appropriate on the basis that many martial arts were never "martial" in the sense of being used or created by professional warriors. Variation and scope Martial arts may be categorized using a variety of criteria, including: Traditional/historical arts vs. contemporary styles: e.g., folk wrestling compared to modern hybrid martial arts. Techniques taught: armed vs. unarmed, and within these categories armed: by type of weapon (swordsmanship, stick fighting etc.) unarmed: by type of combat (grappling vs. striking, stand-up fighting vs. ground fighting) By application or intent: self-defense, combat sport, choreography or demonstration of forms, physical fitness, meditation, etc. Within Chinese tradition: "external" vs. "internal" styles By technical focus Unarmed Unarmed martial arts can be broadly grouped into those focusing on strikes, those focusing on grappling, and those that cover both fields, often described as hybrid martial arts. Strikes Punching: Boxing, Wing Chun, Karate Kicking: Kickboxing, Taekwondo, Capoeira, Savate Others using strikes: Lethwei, Muay Thai, Kung Fu, Pencak Silat, Kalaripayattu Grappling Throwing: Hapkido, Judo, Sumo, Wrestling, Aikido Joint lock/Chokeholds/Submission holds: Jujutsu, Brazilian jiu-jitsu, Sambo, Catch wrestling Pinning Techniques: Judo, Wrestling, Aikido Armed The traditional martial arts that cover armed combat often encompass a wide spectrum of melee weapons, including bladed weapons and polearms. Such traditions include eskrima, silat, kalaripayat, kobudo, and historical European martial arts, especially those of the German Renaissance. Many Chinese martial arts also feature weapons as part of their curriculum. Sometimes, training with one specific weapon may be considered a style in its own right, especially in the case of Japanese martial arts, with disciplines such as kenjutsu and kendo (sword), bojutsu (staff), and kyūdō (archery). Similarly, modern martial arts and sports include modern fencing, stick-fighting systems like canne de combat, modern competitive archery and practical shooting. By application or intent Combat-oriented Health-oriented Many martial arts, especially those from Asia, also teach side disciplines which pertain to medicinal practices. This is particularly prevalent in traditional Asian martial arts which may teach bone-setting, herbalism, and other aspects of traditional medicine. Spirituality-oriented Martial arts can also be linked with religion and spirituality. Numerous systems are reputed to have been founded, disseminated, or practiced by monks or nuns. Throughout the Asian arts, meditation may be incorporated as a part of training. In the arts influenced by a mix of Chan Buddhist, Taoist and Confucian philosophy, the practice itself may be used as an aid to attaining mindfulness. Japanese styles, when concerning non-physical qualities of the combat, are often strongly influenced by Mahayana Buddhist philosophy. Concepts like "empty mind" and "beginner's mind" are recurrent. Aikido practitioners for instance, can have a strong philosophical belief of the flow of energy and peace fostering, as idealised by the art's founder Morihei Ueshiba. Traditional Korean martial arts place emphasis on the development of the practitioner's spiritual and philosophical development. A common theme in most Korean styles, such as Taekkyon, taekwondo, and Hapkido is the value of "inner peace" in a practitioner, which is stressed to be only achievable through individual meditation and training. The Koreans believe that the use of physical force is only justifiable for self defense. Systema draws upon breathing and relaxation techniques, as well as elements of Russian Orthodox thought, to foster self-conscience and calmness, and to benefit the practitioner in different levels: the physical, the psychological and the spiritual. Some martial arts in various cultures can be performed in dance-like settings for various reasons, such as for evoking ferocity in preparation for battle or showing off skill in a more stylized manner, with capoeira being the most prominent example. Many such martial arts incorporate music, especially strong percussive rhythms (see also war dance). Pahlevani and zourkhaneh rituals is the name of a Persian Martial arts inscribed by UNESCO for varzesh-e pahlavāni (, "heroic sport") or varzesh-e bāstāni (; varzeš-e bāstānī, "ancient sport"), a traditional system of athletics originally used to train warriors in Iran (Persia), and first appearing under this name and form in the Safavid era, with similarities to systems in adjacent lands under other names. History Historical martial arts Human warfare dates back to the Epipalaeolithic to early Neolithic era. The oldest works of art depicting scenes of battle are cave paintings from eastern Spain (Spanish Levante) dated between 10,000 and 6,000 BCE that show organized groups fighting with bows and arrows. Similar evidence of warfare has been found in Epipalaeolithic to early Neolithic era mass burials, excavated in Germany and at Jebel Sahaba in Northern Sudan. Wrestling is the oldest combat sport, with origins in hand-to-hand combat. Belt wrestling was depicted in works of art from Mesopotamia and Ancient Egypt , and later in the Sumerian Epic of Gilgamesh. The earliest known depiction of boxing comes from a Sumerian relief in Mesopotamia (modern Iraq) from the 3rd millennium BCE. The foundation of modern East Asian martial arts and South Asian martial arts is likely facilitated by cultural exchanges of early Chinese and Indian martial arts. During the Warring States period of Chinese history (480–221 BCE) extensive development in martial philosophy and strategy emerged, as described by Sun Tzu in The Art of War (c. 350 BCE). Legendary accounts link the origin of Shaolinquan to the spread of Buddhism from ancient India during the early 5th century CE, with the figure of Bodhidharma, to China. Written evidence of martial arts in Southern India dates back to the Sangam literature of about the 2nd century BCE to the 2nd century CE. The combat techniques of the Sangam period were the earliest precursors to Kalaripayattu. In Europe, the earliest sources of martial arts traditions date to Ancient Greece. Boxing (pygme, pyx), wrestling (pale) and pankration were represented in the Ancient Olympic Games. The Romans produced gladiatorial combat as a public spectacle. A number of historical combat manuals have survived from the European Middle Ages. This includes such styles as sword and shield, two-handed swordfighting and other types of melee weapons besides unarmed combat. Amongst these are transcriptions of Johannes Liechtenauer's mnemonic poem on the longsword dating back to the late fourteenth century. Likewise, Asian martial arts became well-documented during the medieval period, Japanese martial arts beginning with the establishment of the samurai nobility in the 12th century, Chinese martial arts with Ming era treatises such as Ji Xiao Xin Shu, Indian martial arts in medieval texts such as the Agni Purana and the Malla Purana, and Korean martial arts from the Joseon era and texts such as Muyejebo (1598). European swordsmanship always had a sportive component, but the duel was always a possibility until World War I. Modern sport fencing began developing during the 19th century as the French and Italian military academies began codifying instruction. The Olympic games led to standard international rules, with the Féderation Internationale d'Escrime founded in 1913. Modern boxing originates with Jack Broughton's rules in the 18th century, and reaches its present form with the Marquess of Queensberry Rules of 1867. Folk styles Certain traditional combat sports and fighting styles exist all over the world, rooted in local culture and folklore. The most common of these are styles of folk wrestling, some of which have been practiced since antiquity and are found in the most remote areas. Other examples include forms of stick fighting and boxing. While these arts are based on historical traditions of folklore, they are not "historical" in the sense that they reconstruct or preserve a historical system from a specific era. They are rather contemporary regional sports that coexist with the modern forms of martial arts sports as they have developed since the 19th century, often including cross-fertilization between sports and folk styles; thus, the traditional Thai art of muay boran developed into the modern national sport of muay Thai, which in turn came to be practiced worldwide and contributed significantly to modern hybrid styles like kickboxing and mixed martial arts. Singlestick, an English martial art can be seen often utilized in morris dancing. Many European dances share elements of martial arts with examples including Ukrainian Hopak, Polish Zbójnicki (use of ciupaga), the Czech dance odzemek, and the Norwegian Halling. Modern history Late 19th to early 20th century The mid to late 19th century marks the beginning of the history of martial arts as modern sports developed out of earlier traditional fighting systems. In Europe, this concerns the developments of boxing, wrestling and fencing as sports. In Japan, the same period marks the formation of the modern forms of judo, jujutsu, karate, and kendo (among others) based on revivals of old schools of Edo period martial arts which had been suppressed during the Meiji Restoration Modern muay Thai rules date to the 1920s. In China, the modern history of martial arts begins in the Nanjing decade (1930s) following the foundation of the Central Guoshu Institute in 1928 under the Kuomintang government. Western interest in Asian martial arts arises towards the end of the 19th century, due to the increase in trade between the United States with China and Japan. Relatively few Westerners actually practiced the arts, considering it to be mere performance. Edward William Barton-Wright, a railway engineer who had studied jujutsu while working in Japan between 1894 and 1897, was the first man known to have taught Asian martial arts in Europe. He also founded an eclectic style named Bartitsu which combined jujutsu, judo, wrestling, boxing, savate and stick fighting. Fencing and Greco-Roman wrestling was included in the 1896 Summer Olympics. FILA Wrestling World Championships and Boxing at the Summer Olympics were introduced in 1904. The tradition of awarding championship belts in wrestling and boxing can be traced to the Lonsdale Belt, introduced in 1909. 20th century (1914 to 1989) The International Boxing Association was established in 1920. World Fencing Championships have been held since 1921. As Western influence grew in Asia a greater number of military personnel spent time in China, Japan and South Korea during World War II and the Korean War and were exposed to local fighting styles. Jujutsu, judo and karate first became popular among the mainstream from the 1950s–1960s. Due in part to Asian and Hollywood martial arts movies, most modern American martial arts are either Asian-derived or Asian influenced. The term kickboxing (キックボクシング) was created by the Japanese boxing promoter Osamu Noguchi for a variant of muay Thai and karate that he created in the 1950s. American kickboxing was developed in the 1970s, as a combination of boxing and karate. Taekwondo was developed in the context of the Korean War in the 1950s. The later 1960s and 1970s witnessed an increased media interest in Chinese martial arts, influenced by martial artist Bruce Lee. Bruce Lee is credited as one of the first instructors to openly teach Chinese martial arts to Westerners. World Judo Championships have been held since 1956, Judo at the Summer Olympics was introduced in 1964. Karate World Championships were introduced in 1970. The "kung fu wave" of Hong Kong action cinema in the 1970s, especially Bruce Lee films, popularized martial arts in global popular culture. A number of mainstream films produced during the 1980s also contributed significantly to the perception of martial arts in Western popular culture. These include The Karate Kid (1984) and Bloodsport (1988). This era produced some Hollywood action stars with martial arts background, such as Jean-Claude Van Damme and Chuck Norris. Also during the 20th century, a number of martial arts were adapted for self-defense purposes for military hand-to-hand combat. World War II combatives, KAPAP (1930s) and Krav Maga (1950s) in Israel, Systema in Soviet-era Russia, and Sanshou in the People's Republic of China are examples of such systems. The US military de-emphasized hand-to-hand combat training during the Cold War period, but revived it with the introduction of LINE in 1989. 1990 to present In 1993, the first Pancrase event was held in Japan. The K-1 rules of kickboxing were introduced, based on 1980s Seidokaikan karate. During the 1990s, Brazilian jiu-jitsu became popular and proved to be effective in mixed martial arts (MMA) competitions such as the UFC and PRIDE. Jackie Chan and Jet Li are prominent martial artists who have become major movie figures. Their popularity and media presence has been at the forefront for promoting Chinese martial arts since the late 20th and early 21st centuries. With the continual discovery of more medieval and Renaissance fighting manuals, the practice of Historical European Martial Arts and other Western Martial Arts have been growing in popularity across the United States and Europe. On 29 November 2011, UNESCO inscribed Taekkyon onto its Intangible Cultural Heritage of Humanity List. Revival Many styles of Indian martial arts were banned by the colonial authorities during the period of British rule in India, which led to a decline in their popularity. Some, such as Kalaripayattu, did not undergo such declines since they were mostly practised in areas of the Indian subcontinent outside direct British control. Other Indian martial art, such as Silambam, while not widely practiced in India, continue to be practiced in other countries in the Indian cultural sphere such as Indonesia and Malaysia. Many other Indian martial arts such as Mardhani Khel and Paika Akhada survived by practitioners practicing the art in secret, or by telling the colonial authorities that it was a form of dance. While many regional Indian martial arts forms are fading into obscurity, martial arts such as Gatka and Kalaripayattu are experiencing a gradual resurgence. Testing and competition Testing or evaluation is important to martial artists of many disciplines who wish to determine their progression or own level of skill in specific contexts. Students often undergo periodic testing and grading by their own teacher in order to advance to a higher level of recognized achievement, such as a different belt color or title. The type of testing used varies from system to system but may include forms or sparring. Various forms and sparring are commonly used in martial art exhibitions and tournaments. Some competitions pit practitioners of different disciplines against each other using a common set of rules, these are referred to as mixed martial arts competitions. Rules for sparring vary between art and organization but can generally be divided into light-contact, medium-contact, and full-contact variants, reflecting the amount of force that should be used on an opponent. Light- and medium-contact These types of sparring restrict the amount of force that may be used to hit an opponent, in the case of light sparring this is usually to 'touch' contact, e.g. a punch should be 'pulled' as soon as or before contact is made. In medium-contact (sometimes referred to as semi-contact) the punch would not be 'pulled' but not hit with full force. As the amount of force used is restricted, the aim of these types of sparring is not to knock out an opponent; a point system is used in competitions. A referee acts to monitor for fouls and to control the match, while judges mark down scores, as in boxing. Particular targets may be prohibited, certain techniques may be forbidden (such as headbutting or groin hits), and fighters may be required to wear protective equipment on their head, hands, chest, groin, shins or feet. Some grappling arts, such as aikido, use a similar method of compliant training that is equivalent to light or medium contact. In some styles (such as fencing and some styles of taekwondo sparring), competitors score points based on the landing of a single technique or strike as judged by the referee, whereupon the referee will briefly stop the match, award a point, then restart the match. Alternatively, sparring may continue with the point noted by the judges. Some critics of point sparring feel that this method of training teaches habits that result in lower combat effectiveness. Lighter-contact sparring may be used exclusively, for children or in other situations when heavy contact would be inappropriate (such as beginners), medium-contact sparring is often used as training for full contact. Full-contact Full-contact sparring or competition, where strikes or techniques are not pulled but used with full force as the name implies, has a number of tactical differences from light and medium-contact sparring. It is considered by some to be requisite in learning realistic unarmed combat. In full-contact sparring, the aim of a competitive match is to knock out the opponent or to force the opponent to submit. Where scoring takes place it may be a subsidiary measure, only used if no clear winner has been established by other means; in some competitions, such as the UFC 1, there was no scoring, though most now use some form of judging as a backup. Due to these factors, full-contact matches tend to be more aggressive in character, but rule sets may still mandate the use of protective equipment, or limit the techniques allowed. Nearly all mixed martial arts organizations such as UFC, Pancrase, Shooto use a form of full-contact rules as do professional boxing organizations and K-1. Kyokushin karate requires advanced practitioners to engage in bare-knuckled, full-contact sparring allowing kicks, knees and punching although punching to the head is disallowed while wearing only a karate gi and groin protector. Brazilian jiu-jitsu and judo matches do not allow striking, but are full-contact in the sense that full force is applied in the permitted grappling and submission techniques. Competitions held by World Taekwondo requires the use of Headgear and padded vest, but are full contact in the sense that full force is applied to strikes to the head and body, and win by knockout is possible. Martial sport Martial arts have crossed over into sports when forms of sparring become competitive, becoming a sport in its own right that is dissociated from the original combative origin, such as with western fencing. The Summer Olympic Games includes judo, taekwondo, western archery, boxing, javelin, wrestling and fencing as events, while Chinese wushu recently failed in its bid to be included, but is still actively performed in tournaments across the world. Practitioners in some arts such as kickboxing and Brazilian jiu-jitsu often train for sport matches, whereas those in other arts such as aikido generally spurn such competitions. Some schools believe that competition breeds better and more efficient practitioners, and gives a sense of good sportsmanship. Others believe that the rules under which competition takes place have diminished the combat effectiveness of martial arts or encourage a kind of practice which focuses on winning trophies rather than a focus such as cultivating a particular moral character. The question of "which is the best martial art" has led to inter style competitions fought with very few rules allowing a variety of fighting styles to enter with few limitations. This was the origin of the first Ultimate Fighting Championship tournament (later renamed UFC 1: The Beginning) in the USA inspired by the Brazilian Vale tudo tradition and along with other minimal rule competitions, most notably those from Japan such as Shooto and Pancrase, have evolved into the combat sport of Mixed Martial Arts (MMA). Some martial artists compete in non-sparring competitions such as breaking or choreographed routines of techniques such as poomse, kata and aka, or modern variations of the martial arts which include dance-influenced competitions such as tricking. Martial traditions have been influenced by governments to become more sport-like for political purposes; the central impetus for the attempt by the People's Republic of China in transforming Chinese martial arts into the committee-regulated sport of wushu was suppressing what they saw as the potentially subversive aspects of martial training, especially under the traditional system of family lineages. Health and fitness benefits Martial arts training aims to result in several benefits to trainees, such as their physical, mental, emotional and spiritual health. Through systematic practice in the martial arts a person's physical fitness may be boosted (strength, stamina, speed, flexibility, movement coordination, etc.) as the whole body is exercised and the entire muscular system is activated. Beyond contributing to physical fitness, martial arts training also has benefits for mental health, contributing to self-esteem, self-control, emotional and spiritual well-being. For this reason, a number of martial arts schools have focused purely on therapeutic aspects, de-emphasizing the historical aspect of self-defense or combat completely. According to Bruce Lee, martial arts also have the nature of an art, since there is emotional communication and complete emotional expression. Self-defense, military and law enforcement applications Some traditional martial concepts have seen new use within modern military training. Perhaps the most recent example of this is point shooting which relies on muscle memory to more effectively utilize a firearm in a variety of awkward situations, much the way an iaidoka would master movements with their sword. During the World War II era William E. Fairbairn and Eric A. Sykes were recruited by the Special Operations Executive (SOE) to teach their martial art of Defendu (itself drawing on Western boxing and Jujutsu) and pistol shooting to UK, US, and Canadian special forces. The book Kill or Get Killed, written by Colonel Rex Applegate, was based on the Defendu taught by Sykes and Fairbairn. Both Fairbairn's Get Tough and Appelgate's Kill or Get Killed became classic works on hand-to-hand combat. Traditional hand-to-hand, knife, and spear techniques continue to see use in the composite systems developed for today's wars. Examples of this include European Unifight, the US Army's Combatives system developed by Matt Larsen, the Israeli army's KAPAP and Krav Maga, and the US Marine Corps's Marine Corps Martial Arts Program (MCMAP). Unarmed dagger defenses identical to those found in the manual of Fiore dei Liberi and the Codex Wallerstein were integrated into the U.S. Army's training manuals in 1942 and continue to influence today's systems along with other traditional systems such as eskrima and silat. The rifle-mounted bayonet which has its origin in the spear, has seen use by the United States Army, the United States Marine Corps, and the British Army as recently as the Iraq War. Many martial arts are also seen and used in Law Enforcement hand-to-hand training. For example, the Tokyo Riot Police's use of aikido. Martial arts industry Martial arts since the 1970s has become a significant industry, a subset of the wider sport industry (including cinema and sports television). Hundreds of millions of people worldwide practice some form of martial art. Web Japan (sponsored by the Japanese Ministry of Foreign Affairs) claims there are 50 million karate practitioners worldwide. The South Korean government in 2009 published an estimate that taekwondo is practiced by 70 million people in 190 countries. The wholesale value of martial arts related sporting equipment shipped in the United States was estimated at US$314 million in 2007; participation in the same year was estimated at 6.9 million (ages 6 or older, 2% of US population). R. A. Court, CEO of Martial Arts Channel, stated the total revenue of the US martial arts industry at US$40 billion and the number of US practitioners at 30 million in 2003. Equipment Martial arts equipment can include that which is used for conditioning, protection and weapons. Specialized conditioning equipment can include breaking boards, dummy partners such as the wooden dummy, and targets such as punching bags and the makiwara. Protective equipment for sparring and competition includes boxing gloves, headgear and mouthguards. Martial arts fraud Asian martial arts experienced a surge of popularity in the west during the 1970s, and the rising demand resulted in numerous low quality or fraudulent schools. Fueled by fictional depictions in martial arts movies, this led to the ninja craze of the 1980s in the United States. There were also numerous fraudulent ads for martial arts training programs, inserted into comic books circa the 1960s and 1970s, which were read primarily by adolescent boys. In the seventies, lower ranks (kyu) began to be given colorful belts to show progress. This proved to be commercially viable and colored-belt systems were adopted in many martial arts degree mills (also known as McDojos and belt factories) as a means to generate additional cash. This was covered in the Penn & Teller: Bullshit! episode "Martial Arts" (June 2010). See also Martial arts timeline History of martial arts List of martial arts References Combat sports Individual sports Cognitive training Performing arts Self-defense

19509

https://en.wikipedia.org/wiki/Finitary%20relation

Finitary relation

In mathematics, a finitary relation over sets is a subset of the Cartesian product ; that is, it is a set of n-tuples consisting of elements xi in Xi. Typically, the relation describes a possible connection between the elements of an n-tuple. For example, the relation "x is divisible by y and z" consists of the set of 3-tuples such that when substituted to x, y and z, respectively, make the sentence true. The non-negative integer n giving the number of "places" in the relation is called the arity, adicity or degree of the relation. A relation with n "places" is variously called an n-ary relation, an n-adic relation or a relation of degree n. Relations with a finite number of places are called finitary relations (or simply relations if the context is clear). It is also possible to generalize the concept to infinitary relations with infinite sequences. An n-ary relation over sets is an element of the power set of . 0-ary relations count only two members: the one that always holds, and the one that never holds. This is because there is only one 0-tuple, the empty tuple (). They are sometimes useful for constructing the base case of an induction argument. Unary relations can be viewed as a collection of members (such as the collection of Nobel laureates) having some property (such as that of having been awarded the Nobel prize). Binary relations are the most commonly studied form of finitary relations. When X1 = X2 it is called a homogeneous relation, for example: Equality and inequality, denoted by signs such as = and < in statements such as "", or Divisibility, denoted by the sign | in statements such as "13|143". Otherwise it is a heterogeneous relation, for example: Set membership, denoted by the sign ∈ in statements such as "". Example Consider the ternary relation R "x thinks that y likes z" over the set of people }, defined by: }. R can be represented equivalently by the following table: Here, each row represents a triple of R, that is it makes a statement of the form "x thinks that y likes z". For instance, the first row states that "Alice thinks that Bob likes Denise". All rows are distinct. The ordering of rows is insignificant but the ordering of columns is significant. The above table is also a simple example of a relational database, a field with theory rooted in relational algebra and applications in data management. Computer scientists, logicians, and mathematicians, however, tend to have different conceptions what a general relation is, and what it is consisted of. For example, databases are designed to deal with empirical data, which is by definition finite, whereas in mathematics, relations with infinite arity (i.e., infinitary relation) are also considered. Definitions The first definition of relations encountered in mathematics is: Definition 1 An n-ary relation R over sets is a subset of the Cartesian product . The second definition of relations makes use of an idiom that is common in mathematics, stipulating that "such and such is an n-tuple" in order to ensure that such and such a mathematical object is determined by the specification of mathematical objects with n elements. In the case of a relation R over n sets, there are things to specify, namely, the n sets plus a subset of their Cartesian product. In the idiom, this is expressed by saying that R is a ()-tuple. Definition 2 An n-ary relation R over sets is an ()-tuple where G is a subset of the Cartesian product called the graph of R. As a rule, whatever definition best fits the application at hand will be chosen for that purpose, and if it ever becomes necessary to distinguish between the two definitions, then an entity satisfying the second definition may be called an embedded or included relation. Both statements (under the first definition) and (under the second definition) read "x1, ⋯, xn are R-related" and are denoted using prefix notation by and using postfix notation by . In the case where R is a binary relation, those statements are also denoted using infix notation by . The following considerations apply under either definition: The set Xi is called the th domain of R. Under the first definition, the relation does not uniquely determine a given sequence of domains. In the case where R is a binary relation, X1 is also called simply the domain or set of departure of R, and X2 is also called the codomain or set of destination of R. When the elements of Xi are relations, Xi is called a nonsimple domain of R. The set of for which there exists such that is called the ith domain of definition or active domain of R. In the case where R is a binary relation, its first domain of definition is also called simply the domain of definition or active domain of R, and its second domain of definition is also called the codomain of definition or active codomain of R. When the th domain of definition of R is equal to Xi, R is said to be total on Xi. In the case where R is a binary relation, when R is total on X1, it is also said to be left-total or serial, and when R is total on X2, it is also said to be right-total or surjective. When and where is a partition of , if the components of x and z are R-related and the components of y and z are R-related then , R is said to be unique on , and is called a primary key of R. In the case where R is a binary relation, when R is unique on {X1}, it is also said to be left-unique or injective, and when R is unique on {X2}, it is also said to be right-unique or functional. When all Xi are the same set X, it is simpler to refer to R as an n-ary relation over X, called a homogeneous relation. Otherwise R is called a heterogeneous relation. When any of Xi is empty, the defining Cartesian product is empty, and the only relation over such a sequence of domains is the empty relation . Hence it is commonly stipulated that all of the domains be nonempty. Let a Boolean domain B be a two-element set, say, }, whose elements can be interpreted as logical values, typically and . The characteristic function of R, denoted by χR, is the Boolean-valued function , defined by if and otherwise. In applied mathematics, computer science and statistics, it is common to refer to a Boolean-valued function as an n-ary predicate. From the more abstract viewpoint of formal logic and model theory, the relation R constitutes a logical model or a relational structure, that serves as one of many possible interpretations of some n-ary predicate symbol. Because relations arise in many scientific disciplines, as well as in many branches of mathematics and logic, there is considerable variation in terminology. Aside from the set-theoretic extension of a relational concept or term, the term "relation" can also be used to refer to the corresponding logical entity, either the logical comprehension, which is the totality of intensions or abstract properties shared by all elements in the relation, or else the symbols denoting these elements and intensions. Further, some writers of the latter persuasion introduce terms with more concrete connotations (such as "relational structure" for the set-theoretic extension of a given relational concept). History The logician Augustus De Morgan, in work published around 1860, was the first to articulate the notion of relation in anything like its present sense. He also stated the first formal results in the theory of relations (on De Morgan and relations, see Merrill 1990). Charles Peirce, Gottlob Frege, Georg Cantor, Richard Dedekind and others advanced the theory of relations. Many of their ideas, especially on relations called orders, were summarized in The Principles of Mathematics (1903) where Bertrand Russell made free use of these results. In 1970, Edgar Codd proposed a relational model for databases, thus anticipating the development of data base management systems. See also Incidence structure Hypergraph Logic of relatives Logical matrix Partial order Predicate (mathematical logic) Projection (set theory) Reflexive relation Relation algebra Relational algebra Relational model Relations (philosophy) References Bibliography Bourbaki, N. (1994) Elements of the History of Mathematics, John Meldrum, trans. Springer-Verlag. Carnap, Rudolf (1958) Introduction to Symbolic Logic with Applications. Dover Publications. Halmos, P.R. (1960) Naive Set Theory. Princeton NJ: D. Van Nostrand Company. Lawvere, F.W., and R. Rosebrugh (2003) Sets for Mathematics, Cambridge Univ. Press. Lewis, C.I. (1918) A Survey of Symbolic Logic, Chapter 3: Applications of the Boole—Schröder Algebra, via Internet Archive Lucas, J. R. (1999) Conceptual Roots of Mathematics. Routledge. Maddux, R.D. (2006) Relation Algebras, vol. 150 in 'Studies in Logic and the Foundations of Mathematics'. Elsevier Science. Merrill, Dan D. (1990) Augustus De Morgan and the logic of relations. Kluwer. Peirce, C.S. (1870), "Description of a Notation for the Logic of Relatives, Resulting from an Amplification of the Conceptions of Boole's Calculus of Logic", Memoirs of the American Academy of Arts and Sciences 9, 317–78, 1870. Reprinted, Collected Papers CP 3.45–149, Chronological Edition CE 2, 359–429. Peirce, C.S. (1984) Writings of Charles S. Peirce: A Chronological Edition, Volume 2, 1867-1871. Peirce Edition Project, eds. Indiana University Press. Russell, Bertrand (1903/1938) The Principles of Mathematics, 2nd ed. Cambridge Univ. Press. Suppes, Patrick (1960/1972) Axiomatic Set Theory. Dover Publications. Tarski, A. (1956/1983) Logic, Semantics, Metamathematics, Papers from 1923 to 1938, J.H. Woodger, trans. 1st edition, Oxford University Press. 2nd edition, J. Corcoran, ed. Indianapolis IN: Hackett Publishing. Ulam, S.M. and Bednarek, A.R. (1990), "On the Theory of Relational Structures and Schemata for Parallel Computation", pp. 477–508 in A.R. Bednarek and Françoise Ulam (eds.), Analogies Between Analogies: The Mathematical Reports of S.M. Ulam and His Los Alamos Collaborators, University of California Press, Berkeley, CA. Ulam, S.M. (1990) Analogies Between Analogies: The Mathematical Reports of S.M. Ulam and His Los Alamos Collaborators in A.R. Bednarek and Françoise Ulam, eds., University of California Press. Roland Fraïssé (2000) [1986] Theory of Relations, North Holland Mathematical logic Mathematical relations

19510

https://en.wikipedia.org/wiki/Mokele-mbembe

Mokele-mbembe

In cryptozoology, the Mokele-mbembe (also written as "Mokèlé-mbèmbé", /mowkəl-mbɛmb/), Lingala for "one who stops the flow of rivers", is a water-dwelling entity that supposedly lives in the Congo River Basin, sometimes described as a living creature, sometimes as a spirit. Those that heard or that allegedly saw the entity describe it as a large quadrupedal herbivore with a smooth skin, a long neck and a single tooth, sometimes said to be a horn. In early to mid 20th century, the entity would become a point of focus among adherents of the pseudoscience of cryptozoology, and young Earth creationism, resulting in numerous expeditions led by cryptozoologists and funded by young Earth creationists and other groups with the objective to find evidence that invalidates or contradicts the scientific consensus regarding evolution. Paleontologist Donald Prothero remarks that "the quest for Mokele-Mbembe... is part of the effort by creationists to overthrow the theory of evolution and teaching of science by any means possible". Additionally, Prothero observes that "The only people looking for mokele-mbembe are creationist ministers, not wildlife biologists." Historian Edward Guimont has argued that the mokele-mbembe myth grows out of earlier pseudohistorical claims about Great Zimbabwe, and in turn influenced the later reptilian conspiracy theory. History 20th century The first description of the mokele-mbembe as an apatosaurus-like creature was in 1909, in Beasts and Men, the autobiography of famed big-game hunter Carl Hagenbeck. He claimed to have heard from two independent sources about a creature living in Rhodesia, or modern day Zimbabwe, which was described to them by natives as "half elephant, half dragon." Naturalist Joseph Menges had also told Hagenbeck about similar stories. Hagenbeck speculated that "it can only be some kind of dinosaur, seemingly akin to the Brontosaurus." Another of Hagenbeck's sources, Hans Schomburgk, asserted that while at Lake Bangweulu, he noted a lack of hippopotami; his native guides informed him of a large hippo-killing creature that lived in Lake Bangweulu; however, as noted below, Schomburgk thought that native testimony was sometimes unreliable. Tales of entities like mokele-mbembe, living saurians walking around the African rain forest, are not rare, there have been multiple tales of large, smooth skinned quadrupeds with long necks that fed on large prey still living in central Africa. It was only after the description of the mokele-mbembe surfaced that the rest of the world started interpreting those legends as possessing a dinosaur-like body structure. A notable example would be the emela-ntouka, an elephant sized creature that shares a lot of similarities with the mokele-mbembe, it is described as having smooth skin, a strong and muscular tail and a "horn" or "tooth". Another similar creature, the jago-nini was described by Alfred Aloysius Smith who had worked for a British trading company in what is now Gabon in the late 1800s, briefly mentions it in his 1927 memoir. Reports of entities described to be dinosaur-like in Africa caused a minor sensation in the mass media, and newspapers in Europe and North America carried many articles on the subject in the early 1910s; some took the reports at face value, others were more skeptical. It is notable that Western Europe and the Americas were going through a pop cultural interest in dinosaurs, of which the Brontosaurus was one of the most popular. This could have contributed to both the reports as well as the tendency for newspapers to claim the reported beast was a sauropod. According to German adventurer Lt. Paul Gratz's account from 1911:The crocodile is found only in very isolated specimens in Lake Bangweulu, except in the mouths of the large rivers at the north. In the swamp lives the nsanga, much feared by the natives, a degenerate saurian which one might well confuse with the crocodile were it not that its skin has no scales and its toes are armed with claws. I did not succeed in shooting a nsanga, but on the island of Mbawala I came by some strips of its skin. Another report comes from German Captain , as described by Willy Ley in the book The Lungfish and the Unicorn (1941). Von Stein was ordered to conduct a survey of German colonies in what is now Cameroon in 1913. He heard stories of an enormous reptile called "Mokele-mbembe" alleged to live in the jungles, and included a description in his official report. According to Ley, "von Stein worded his report with utmost caution," knowing it might be seen as unbelievable. Nonetheless, von Stein thought the tales were credible: trusted native guides had related the tales to him, and the stories were related to him by independent sources, yet featured many of the same details. Though von Stein's report was never formally published, Ley quoted von Stein as writing: The animal is said to be of a brownish-gray color with a smooth skin, its size is approximately that of an elephant; at least that of a hippopotamus. It is said to have a long and very flexible neck and only one tooth but a very long one; some say it is a horn. A few spoke about a long, muscular tail like that of an alligator. Canoes coming near it are said to be doomed; the animal is said to attack the vessels at once and to kill the crews but without eating the bodies. The creature is said to live in the caves that have been washed out by the river in the clay of its shores at sharp bends. It is said to climb the shores even at daytime in search of food; its diet is said to be entirely vegetable. This feature disagrees with a possible explanation as a myth. The preferred plant was shown to me, it is a kind of liana with large white blossoms, with a milky sap and apple-like fruits. At the Ssombo River I was shown a path said to have been made by this animal in order to get at its food. The path was fresh and there were plants of the described type nearby. But since there were too many tracks of elephants, hippos, and other large mammals it was impossible to make out a particular spoor with any amount of certainty. 21st century In 2001, BBC broadcast in the TV series Congo a collective interview with a group of BiAka pygmies, who identified the mokele-mbembe as a rhinoceros while looking at an illustrated manual of wildlife. Neither species of African rhinoceros is common in the Congo Basin, and the mokele-mbembe may be a mixture of mythology and folk memory from a time when rhinoceroses were found in the area. In 2016, a travel documentary crew from South Africa made a documentary about searching for mokele-mbembe, which they later sold to Discovery Africa. The team spent roughly four weeks in the Likuoala swamp region visiting various Aka (pygmy) villages, collecting stories of the creature's existence. They point out the difficulty of differentiating between mokele-mbembe's metaphysical and physical existence. They interviewed people who believed in its presence, others stated it died at least a decade ago. In 2018, Lensgreve of Knuthenborg, Adam Christoffer Knuth, along with a film crew from Danish Radio and a DNA scientist, traveled to Lake Tele in Congo, in search of the mokele-mbembe. They did not find the dinosaur. However they found a new green algae. Possible explanation The mokele-mbembe's existence has been highly questioned since its publication: the lack of physical evidence and the conflicting witnesses have made the existence of the entity doubted by the astounding majority of scientists and historians. The most reasonable and agreed upon explanation is that the mokele-mbembe is a legend based on the black rhinoceros, a species once common to central Africa, where the stories of the mokele-mbembe originated. The absence of this evidence, despite several centuries of Western contact with the region, numerous expeditions in search of the animal, and periodic aerial and satellite surveillance, all of which have detected elephants and other large animals - but no sauropods - all argue against the existence of mokele-mbembe. In popular culture A rather disadvantageous line of the chess opening Alekhine's Defence is named after the creature: the "mokele-mbembe variation". The mokele-mbembe was featured in The Secret Files of the Spy Dogs episode "Earnest." It is among the creatures that have been caught by Earnest Anyway. In the 1985 film Baby: Secret of the Lost Legend, rumors of a sighting of mokele-mbembe lead the main characters to a family of live sauropods. In May 2013 the Norwegian experimental music outfit Sturle Dagsland released a song entitled "mokele-mbembe". The Roland Smith novel Cryptid Hunters revolves around a search for the mokele-mbembe and successful recovery of two of its eggs (the only known adult specimens having died beforehand) from the jungles of the Congo. Mokele-mbembe is one of six cryptids sought by comedian and journalist Dom Joly in his travel book Scary Monsters and Super Creeps. Korean American artist David Choe claimed on an episode of The Joe Rogan Experience that as a young man he travelled to the Congo in search of Mokele-mbembe after reading about it in a magazine while he was living in Israel. In the World of Darkness universe by White Wolf Publishing, the Mokole are a breed of were-reptiles who serve as the "memory" of Gaia. See also Mušḫuššu Cryptid Living dinosaur Loch Ness Monster Lariosauro Nahuelito References Bibliography & further reading Central African legendary creatures Cryptids Living dinosaurs Pygmy mythology Young Earth creationism

19513

https://en.wikipedia.org/wiki/Intuitionism

Intuitionism

In the philosophy of mathematics, intuitionism, or neointuitionism (opposed to preintuitionism), is an approach where mathematics is considered to be purely the result of the constructive mental activity of humans rather than the discovery of fundamental principles claimed to exist in an objective reality. That is, logic and mathematics are not considered analytic activities wherein deep properties of objective reality are revealed and applied, but are instead considered the application of internally consistent methods used to realize more complex mental constructs, regardless of their possible independent existence in an objective reality. Truth and proof The fundamental distinguishing characteristic of intuitionism is its interpretation of what it means for a mathematical statement to be true. In Brouwer's original intuitionism, the truth of a mathematical statement is a subjective claim: a mathematical statement corresponds to a mental construction, and a mathematician can assert the truth of a statement only by verifying the validity of that construction by intuition. The vagueness of the intuitionistic notion of truth often leads to misinterpretations about its meaning. Kleene formally defined intuitionistic truth from a realist position, yet Brouwer would likely reject this formalization as meaningless, given his rejection of the realist/Platonist position. Intuitionistic truth therefore remains somewhat ill-defined. However, because the intuitionistic notion of truth is more restrictive than that of classical mathematics, the intuitionist must reject some assumptions of classical logic to ensure that everything they prove is in fact intuitionistically true. This gives rise to intuitionistic logic. To an intuitionist, the claim that an object with certain properties exists is a claim that an object with those properties can be constructed. Any mathematical object is considered to be a product of a construction of a mind, and therefore, the existence of an object is equivalent to the possibility of its construction. This contrasts with the classical approach, which states that the existence of an entity can be proved by refuting its non-existence. For the intuitionist, this is not valid; the refutation of the non-existence does not mean that it is possible to find a construction for the putative object, as is required in order to assert its existence. As such, intuitionism is a variety of mathematical constructivism; but it is not the only kind. The interpretation of negation is different in intuitionist logic than in classical logic. In classical logic, the negation of a statement asserts that the statement is false; to an intuitionist, it means the statement is refutable. There is thus an asymmetry between a positive and negative statement in intuitionism. If a statement P is provable, then P certainly cannot be refutable. But even if it can be shown that P cannot be refuted, this does not constitute a proof of P. Thus P is a stronger statement than not-not-P. Similarly, to assert that A or B holds, to an intuitionist, is to claim that either A or B can be proved. In particular, the law of excluded middle, "A or not A", is not accepted as a valid principle. For example, if A is some mathematical statement that an intuitionist has not yet proved or disproved, then that intuitionist will not assert the truth of "A or not A". However, the intuitionist will accept that "A and not A" cannot be true. Thus the connectives "and" and "or" of intuitionistic logic do not satisfy de Morgan's laws as they do in classical logic. Intuitionistic logic substitutes constructability for abstract truth and is associated with a transition from the proof of model theory to abstract truth in modern mathematics. The logical calculus preserves justification, rather than truth, across transformations yielding derived propositions. It has been taken as giving philosophical support to several schools of philosophy, most notably the Anti-realism of Michael Dummett. Thus, contrary to the first impression its name might convey, and as realized in specific approaches and disciplines (e.g. Fuzzy Sets and Systems), intuitionist mathematics is more rigorous than conventionally founded mathematics, where, ironically, the foundational elements which Intuitionism attempts to construct/refute/refound are taken as intuitively given. Infinity Among the different formulations of intuitionism, there are several different positions on the meaning and reality of infinity. The term potential infinity refers to a mathematical procedure in which there is an unending series of steps. After each step has been completed, there is always another step to be performed. For example, consider the process of counting: The term actual infinity refers to a completed mathematical object which contains an infinite number of elements. An example is the set of natural numbers, In Cantor's formulation of set theory, there are many different infinite sets, some of which are larger than others. For example, the set of all real numbers is larger than , because any procedure that you attempt to use to put the natural numbers into one-to-one correspondence with the real numbers will always fail: there will always be an infinite number of real numbers "left over". Any infinite set that can be placed in one-to-one correspondence with the natural numbers is said to be "countable" or "denumerable". Infinite sets larger than this are said to be "uncountable". Cantor's set theory led to the axiomatic system of Zermelo–Fraenkel set theory (ZFC), now the most common foundation of modern mathematics. Intuitionism was created, in part, as a reaction to Cantor's set theory. Modern constructive set theory includes the axiom of infinity from ZFC (or a revised version of this axiom) and the set of natural numbers. Most modern constructive mathematicians accept the reality of countably infinite sets (however, see Alexander Esenin-Volpin for a counter-example). Brouwer rejected the concept of actual infinity, but admitted the idea of potential infinity. "According to Weyl 1946, 'Brouwer made it clear, as I think beyond any doubt, that there is no evidence supporting the belief in the existential character of the totality of all natural numbers ... the sequence of numbers which grows beyond any stage already reached by passing to the next number, is a manifold of possibilities open towards infinity; it remains forever in the status of creation, but is not a closed realm of things existing in themselves. That we blindly converted one into the other is the true source of our difficulties, including the antinomies – a source of more fundamental nature than Russell's vicious circle principle indicated. Brouwer opened our eyes and made us see how far classical mathematics, nourished by a belief in the 'absolute' that transcends all human possibilities of realization, goes beyond such statements as can claim real meaning and truth founded on evidence." (Kleene (1952): Introduction to Metamathematics, p. 48-49) History Intuitionism's history can be traced to two controversies in nineteenth century mathematics. The first of these was the invention of transfinite arithmetic by Georg Cantor and its subsequent rejection by a number of prominent mathematicians including most famously his teacher Leopold Kronecker—a confirmed finitist. The second of these was Gottlob Frege's effort to reduce all of mathematics to a logical formulation via set theory and its derailing by a youthful Bertrand Russell, the discoverer of Russell's paradox. Frege had planned a three volume definitive work, but just as the second volume was going to press, Russell sent Frege a letter outlining his paradox, which demonstrated that one of Frege's rules of self-reference was self-contradictory. In an appendix to the second volume, Frege acknowledged that one of the axioms of his system did in fact lead to Russell's paradox. Frege, the story goes, plunged into depression and did not publish the third volume of his work as he had planned. For more see Davis (2000) Chapters 3 and 4: Frege: From Breakthrough to Despair and Cantor: Detour through Infinity. See van Heijenoort for the original works and van Heijenoort's commentary. These controversies are strongly linked as the logical methods used by Cantor in proving his results in transfinite arithmetic are essentially the same as those used by Russell in constructing his paradox. Hence how one chooses to resolve Russell's paradox has direct implications on the status accorded to Cantor's transfinite arithmetic. In the early twentieth century L. E. J. Brouwer represented the intuitionist position and David Hilbert the formalist position—see van Heijenoort. Kurt Gödel offered opinions referred to as Platonist (see various sources re Gödel). Alan Turing considers: "non-constructive systems of logic with which not all the steps in a proof are mechanical, some being intuitive". (Turing 1939, reprinted in Davis 2004, p. 210) Later, Stephen Cole Kleene brought forth a more rational consideration of intuitionism in his Introduction to Meta-mathematics (1952). Contributors Henri Poincaré (preintuitionism/conventionalism) L. E. J. Brouwer Michael Dummett Arend Heyting Stephen Kleene Branches of intuitionistic mathematics Intuitionistic logic Intuitionistic arithmetic Intuitionistic type theory Intuitionistic set theory Intuitionistic analysis See also Anti-realism BHK interpretation Brouwer–Hilbert controversy Computability logic Constructive logic Curry–Howard isomorphism Foundations of mathematics Fuzzy logic Game semantics Intuition (knowledge) Model theory Topos theory Ultraintuitionism References Further reading "Analysis." Encyclopædia Britannica. 2006. Encyclopædia Britannica 2006 Ultimate Reference Suite DVD 15 June 2006, "Constructive analysis" (Ian Stewart, author) W. S. Anglin, Mathematics: A Concise history and Philosophy, Springer-Verlag, New York, 1994. In Chapter 39 Foundations, with respect to the 20th century Anglin gives very precise, short descriptions of Platonism (with respect to Godel), Formalism (with respect to Hilbert), and Intuitionism (with respect to Brouwer). Martin Davis (ed.) (1965), The Undecidable, Raven Press, Hewlett, NY. Compilation of original papers by Gödel, Church, Kleene, Turing, Rosser, and Post. Republished as John W. Dawson Jr., Logical Dilemmas: The Life and Work of Kurt Gödel, A. K. Peters, Wellesley, MA, 1997. Less readable than Goldstein but, in Chapter III Excursis, Dawson gives an excellent "A Capsule History of the Development of Logic to 1928". Rebecca Goldstein, Incompleteness: The Proof and Paradox of Kurt Godel, Atlas Books, W.W. Norton, New York, 2005. In Chapter II Hilbert and the Formalists Goldstein gives further historical context. As a Platonist Gödel was reticent in the presence of the logical positivism of the Vienna Circle. Goldstein discusses Wittgenstein's impact and the impact of the formalists. Goldstein notes that the intuitionists were even more opposed to Platonism than Formalism. van Heijenoort, J., From Frege to Gödel, A Source Book in Mathematical Logic, 1879–1931, Harvard University Press, Cambridge, MA, 1967. Reprinted with corrections, 1977. The following papers appear in van Heijenoort: L.E.J. Brouwer, 1923, On the significance of the principle of excluded middle in mathematics, especially in function theory [reprinted with commentary, p. 334, van Heijenoort] Andrei Nikolaevich Kolmogorov, 1925, On the principle of excluded middle, [reprinted with commentary, p. 414, van Heijenoort] L.E.J. Brouwer, 1927, On the domains of definitions of functions, [reprinted with commentary, p. 446, van Heijenoort] Although not directly germane, in his (1923) Brouwer uses certain words defined in this paper. L.E.J. Brouwer, 1927(2), Intuitionistic reflections on formalism, [reprinted with commentary, p. 490, van Heijenoort] Jacques Herbrand, (1931b), "On the consistency of arithmetic", [reprinted with commentary, p. 618ff, van Heijenoort] From van Heijenoort's commentary it is unclear whether or not Herbrand was a true "intuitionist"; Gödel (1963) asserted that indeed "...Herbrand was an intuitionist". But van Heijenoort says Herbrand's conception was "on the whole much closer to that of Hilbert's word 'finitary' ('finit') that to "intuitionistic" as applied to Brouwer's doctrine". Arend Heyting: In Chapter III A Critique of Mathematic Reasoning, §11. The paradoxes, Kleene discusses Intuitionism and Formalism in depth. Throughout the rest of the book he treats, and compares, both Formalist (classical) and Intuitionist logics with an emphasis on the former. Stephen Cole Kleene and Richard Eugene Vesley, The Foundations of Intuitionistic Mathematics, North-Holland Publishing Co. Amsterdam, 1965. The lead sentence tells it all "The constructive tendency in mathematics...". A text for specialists, but written in Kleene's wonderfully-clear style. Hilary Putnam and Paul Benacerraf, Philosophy of Mathematics: Selected Readings, Englewood Cliffs, N.J.: Prentice-Hall, 1964. 2nd ed., Cambridge: Cambridge University Press, 1983. Part I. The foundation of mathematics, Symposium on the foundations of mathematics Rudolf Carnap, The logicist foundations of mathematics, p. 41 Arend Heyting, The intuitionist foundations of mathematics, p. 52 Johann von Neumann, The formalist foundations of mathematics, p. 61 Arend Heyting, Disputation, p. 66 L. E. J. Brouwer, Intuitionnism and formalism, p. 77 L. E. J. Brouwer, Consciousness, philosophy, and mathematics, p. 90 Constance Reid, Hilbert, Copernicus – Springer-Verlag, 1st edition 1970, 2nd edition 1996. Definitive biography of Hilbert places his "Program" in historical context together with the subsequent fighting, sometimes rancorous, between the Intuitionists and the Formalists. Paul Rosenbloom, The Elements of Mathematical Logic, Dover Publications Inc, Mineola, New York, 1950. In a style more of Principia Mathematica – many symbols, some antique, some from German script. Very good discussions of intuitionism in the following locations: pages 51–58 in Section 4 Many Valued Logics, Modal Logics, Intuitionism; pages 69–73 Chapter III The Logic of Propostional Functions Section 1 Informal Introduction; and p. 146-151 Section 7 the Axiom of Choice. Jacques Hartong and Georges Reeb, Intuitionnisme 84 (first published in La Mathématique Non-standard, éditions du C.N.R.S.) A reevaluation of intuitionism, from the point of view (among others) of constructive mathematics and non-standard analysis. Secondary references A. A. Markov (1954) Theory of algorithms. [Translated by Jacques J. Schorr-Kon and PST staff] Imprint Moscow, Academy of Sciences of the USSR, 1954 [i.e. Jerusalem, Israel Program for Scientific Translations, 1961; available from the Office of Technical Services, U.S. Dept. of Commerce, Washington] Description 444 p. 28 cm. Added t.p. in Russian Translation of Works of the Mathematical Institute, Academy of Sciences of the USSR, v. 42. Original title: Teoriya algorifmov. [QA248.M2943 Dartmouth College library. U.S. Dept. of Commerce, Office of Technical Services, number OTS 60–51085.] A secondary reference for specialists: Markov opined that "The entire significance for mathematics of rendering more precise the concept of algorithm emerges, however, in connection with the problem of a constructive foundation for mathematics....[p. 3, italics added.] Markov believed that further applications of his work "merit a special book, which the author hopes to write in the future" (p. 3). Sadly, said work apparently never appeared. External links Ten Questions about Intuitionism Epistemology Constructivism (mathematics) Philosophy of mathematics de:Intuitionismus

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https://en.wikipedia.org/wiki/May%206

May 6

Events Pre-1600 1527 – Spanish and German troops sack Rome; many scholars consider this the end of the Renaissance. 1536 – The Siege of Cuzco commences, in which Incan forces attempt to retake the city of Cuzco from the Spanish. 1541 – King Henry VIII orders English-language Bibles be placed in every church. In 1539 the Great Bible would be provided for this purpose. 1542 – Francis Xavier reaches Old Goa, the capital of Portuguese India at the time. 1593 – The Dutch city of Coevorden held by the Spanish, falls to a Dutch and English force. 1601–1900 1659 – English Restoration: A faction of the British Army removes Richard Cromwell as Lord Protector of the Commonwealth and reinstalls the Rump Parliament. 1682 – Louis XIV of France moves his court to the Palace of Versailles. 1757 – Battle of Prague: A Prussian army fights an Austrian army in Prague during the Seven Years' War. 1757 – The end of Konbaung–Hanthawaddy War, and the end of Burmese Civil War (1740–1757). 1757 – English poet Christopher Smart is admitted into St Luke's Hospital for Lunatics in London, beginning his six-year confinement to mental asylums. 1782 – Construction begins on the Grand Palace, the royal residence of the King of Siam in Bangkok, at the command of King Buddha Yodfa Chulaloke. 1801 – Captain Thomas Cochrane in the 14-gun captures the 32-gun Spanish frigate El Gamo. 1835 – James Gordon Bennett, Sr. publishes the first issue of the New York Herald. 1840 – The Penny Black postage stamp becomes valid for use in the United Kingdom of Great Britain and Ireland. 1857 – The East India Company disbands the 34th Regiment of Bengal Native Infantry whose sepoy Mangal Pandey had earlier revolted against the British in the lead up to the War of Indian Independence. 1861 – American Civil War: Arkansas secedes from the Union. 1863 – American Civil War: The Battle of Chancellorsville ends with the defeat of the Army of the Potomac by the Army of Northern Virginia. 1877 – Chief Crazy Horse of the Oglala Lakota surrenders to United States troops in Nebraska. 1882 – Thomas Henry Burke and Lord Frederick Cavendish are stabbed to death by Fenian assassins in Phoenix Park, Dublin. 1882 – The United States Congress passes the Chinese Exclusion Act. 1889 – The Eiffel Tower is officially opened to the public at the Universal Exposition in Paris. 1901–present 1906 – The Russian Constitution of 1906 is adopted (on April 23 by the Julian calendar). 1910 – George V becomes King of Great Britain, Ireland, and many overseas territories, on the death of his father, Edward VII. 1915 – Babe Ruth, then a pitcher for the Boston Red Sox, hits his first major league home run. 1916 – Twenty-one Lebanese nationalists are executed in Martyrs' Square, Beirut by Djemal Pasha. 1916 – Vietnamese Emperor Duy Tân is captured while calling upon the people to rise up against the French, and is later deposed and exiled to Réunion island. 1933 – The Deutsche Studentenschaft attacked Magnus Hirschfeld's Institut für Sexualwissenschaft, later burning many of its books. 1935 – New Deal: Under the authority of the newly-enacted Federal Emergency Relief Administration, President Franklin D. Roosevelt issues Executive Order 7034 to create the Works Progress Administration. 1937 – Hindenburg disaster: The German zeppelin Hindenburg catches fire and is destroyed within a minute while attempting to dock at Lakehurst, New Jersey. Thirty-six people are killed. 1940 – John Steinbeck is awarded the Pulitzer Prize for his novel The Grapes of Wrath. 1941 – At California's March Field, Bob Hope performs his first USO show. 1941 – The first flight of the Republic P-47 Thunderbolt. 1942 – World War II: On Corregidor, the last American forces in the Philippines surrender to the Japanese. 1945 – World War II: Axis Sally delivers her last propaganda broadcast to Allied troops. 1945 – World War II: The Prague Offensive, the last major battle of the Eastern Front, begins. 1949 – EDSAC, the first practical electronic digital stored-program computer, runs its first operation. 1954 – Roger Bannister becomes the first person to run the mile in under four minutes. 1960 – More than 20 million viewers watch the first televised royal wedding when Princess Margaret marries Anthony Armstrong-Jones at Westminster Abbey. 1966 – Myra Hindley and Ian Brady are sentenced to life imprisonment for the Moors murders in England. 1972 – Deniz Gezmiş, Yusuf Aslan and Hüseyin İnan are executed in Ankara after being convicted of attempting to overthrow the Constitutional order. 1975 – During a lull in fighting, 100,000 Armenians gather in Beirut for the 60th anniversary commemorations of the Armenian genocide. 1976 – The 6.5 Friuli earthquake affected Northern Italy with a maximum Mercalli intensity of X (Extreme), leaving 900–978 dead and 1,700–2,400 injured. 1983 – The Hitler Diaries are revealed as a hoax after being examined by new experts. 1984 – One hundred and three Korean Martyrs are canonized by Pope John Paul II in Seoul. 1988 – All thirty-six passengers and crew were killed when Widerøe Flight 710 crashed into Mt. Torghatten in Brønnøy. 1994 – Elizabeth II of the United Kingdom and French President François Mitterrand officiate at the opening of the Channel Tunnel. 1996 – The body of former CIA director William Colby is found washed up on a riverbank in southern Maryland, eight days after he disappeared. 1997 – The Bank of England is given independence from political control, the most significant change in the bank's 300-year history. 1998 – Kerry Wood strikes out 20 Houston Astros to tie the major league record held by Roger Clemens. He threw a one-hitter and did not walk a batter in his fifth career start. 1998 – Steve Jobs of Apple Inc. unveils the first iMac. 1999 – The first elections to the devolved Scottish Parliament and Welsh Assembly are held. 2001 – During a trip to Syria, Pope John Paul II becomes the first pope to enter a mosque. 2002 – Dutch politician Pim Fortuyn is assassinated following a radio-interview at the Mediapark in Hilversum. 2002– Founding of SpaceX. 2010 – In just 36 minutes, the Dow-Jones average plunged nearly 1000 points in what is known as the 2010 Flash Crash. 2013 – Three women, kidnapped and missing for more than a decade, are found alive in Cleveland, Ohio, in the United States. Births Pre-1600 973 – Henry II, Holy Roman Emperor (d. 1024) 1464 – Sophia Jagiellon, Margravine of Brandenburg-Ansbach, Polish princess (d. 1512) 1493 – Girolamo Seripando, Italian theologian and cardinal (d. 1563) 1501 – Marcellus II, pope of the Catholic Church (d. 1555) 1574 – Innocent X, pope of the Catholic Church (d. 1655) 1580 – Charles Gonzaga, Duke of Mantua and Montferrat, French noble (d. 1637) 1601–1900 1635 – Johann Joachim Becher, German physician and alchemist (d. 1682) 1668 – Alain-René Lesage, French author and playwright (d. 1747) 1680 – Jean-Baptiste Stuck, Italian-French cellist and composer (d. 1755) 1713 – Charles Batteux, French philosopher and academic (d. 1780) 1714 – Anton Raaff, German tenor (d. 1797) 1742 – Jean Senebier, Swiss pastor and physiologist (d. 1809) 1758 – André Masséna, French general (d. 1817) 1758 – Maximilien Robespierre, French lawyer and politician (d. 1794) 1769 – Ferdinand III, Grand Duke of Tuscany (d. 1824) 1769 – Jean Nicolas Pierre Hachette, French mathematician and academic (d. 1834) 1781 – Karl Christian Friedrich Krause, German philosopher and author (d. 1832) 1797 – Joseph Brackett, American religious leader and composer (d. 1882) 1800 – Roman Sanguszko, Polish general (d. 1881) 1827 – Hermann Raster, German-American journalist and politician (d. 1891) 1836 – Max Eyth, German engineer and author (d. 1906) 1843 – Grove Karl Gilbert, American geologist and academic (d. 1918) 1848 – Henry Edward Armstrong, English chemist and academic (d. 1937) 1851 – Aristide Bruant, French singer and actor (d. 1925) 1856 – Sigmund Freud, Austrian neurologist and psychoanalyst (d. 1939) 1856 – Robert Peary, American admiral and explorer (d. 1920) 1861 – Motilal Nehru, Indian lawyer and politician, President of the Indian National Congress (d. 1931) 1868 – Gaston Leroux, French journalist and author (d. 1927) 1869 – Junnosuke Inoue, Japanese businessman and central banker, 8th and 11th Governor of the Bank of Japan (d. 1932) 1870 – Walter Rutherford, Scottish golfer (d. 1936) 1871 – Victor Grignard, French chemist and academic, Nobel Prize laureate (d. 1935) 1871 – Christian Morgenstern, German author and poet (d. 1914) 1872 – Willem de Sitter, Dutch mathematician, physicist, and astronomer (d. 1934) 1872 – Djemal Pasha, Ottoman general (d. 1922) 1879 – Bedřich Hrozný, Czech orientalist and linguist (d. 1952) 1879 – Hendrik van Heuckelum, Dutch footballer (d. 1929) 1880 – Winifred Brunton, English-South African painter and illustrator (d. 1959) 1880 – Ernst Ludwig Kirchner, German-Swiss painter (d. 1938) 1883 – Alberto Collo, Italian actor (d. 1955) 1895 – Júlio César de Mello e Souza, Brazilian mathematician and author (d. 1974) 1895 – Fidél Pálffy, Hungarian soldier and politician, Hungarian Minister of Agriculture (d. 1946) 1895 – Rudolph Valentino, Italian actor (d. 1926) 1896 – Rolf Maximilian Sievert, Swedish physicist and academic (d. 1966) 1897 – Paul Alverdes, German author and poet (d. 1979) 1898 – Konrad Henlein, Czech soldier and politician (d. 1945) 1901–present 1902 – Harry Golden, Ukrainian-American journalist and author (d. 1981) 1902 – Max Ophüls, German-American director and screenwriter (d. 1957) 1903 – Toots Shor, American businessman, founded Toots Shor's Restaurant (d. 1977) 1904 – Moshé Feldenkrais, Ukrainian-Israeli physicist and academic (d. 1984) 1904 – Catherine Lacey, English actress (d. 1979) 1904 – Harry Martinson, Swedish novelist, essayist, and poet Nobel Prize laureate (d. 1978) 1905 – Philip N. Krasne, American lawyer and producer (d. 1999) 1906 – André Weil, French mathematician and academic (d. 1998) 1907 – Weeb Ewbank, American football player and coach (d. 1998) 1911 – Guy des Cars, French journalist and author (d. 1993) 1913 – Carmen Cavallaro, American pianist (d. 1989) 1913 – Stewart Granger, English-American actor (d. 1993) 1915 – Orson Welles, American actor, director, producer, and screenwriter (d. 1985) 1915 – Theodore H. White, American historian, journalist, and author (d. 1986) 1916 – Robert H. Dicke, American physicist and astronomer (d. 1997) 1917 – Kal Mann, American songwriter (d. 2001) 1918 – Zayed bin Sultan Al Nahyan, emir of Abu Dhabi and first president of the United Arab Emirates (d. 2004) 1919 – André Guelfi, French race car driver (d. 2016) 1920 – Kamisese Mara, Fijian politician, 1st Prime Minister of Fiji (d. 2004) 1920 – Marguerite Piazza, American soprano and actress (d. 2012) 1921 – Erich Fried, Austrian-German author, poet, and translator (d. 1988) 1922 – Camille Laurin, Canadian psychiatrist and politician, 7th Deputy Premier of Quebec (d. 1999) 1923 – Harry Watson, Canadian ice hockey player and coach (d. 2002) 1924 – Nestor Basterretxea, Spanish painter and sculptor (d. 2014) 1924 – Patricia Helen Kennedy, American socialite, activist, and author (d. 2006) 1924 – Denny Wright, English guitarist, composer, and producer (d. 1992) 1926 – Gilles Grégoire, Canadian politician, co-founded the Parti Québécois (d. 2006) 1929 – Rosemary Cramp, English archaeologist and academic 1929 – Paul Lauterbur, American chemist and biophysicist, Nobel Prize laureate (d. 2007) 1929 – John Taylor, English bishop and theologian (d. 2016) 1931 – Willie Mays, American baseball player and coach 1931 – Louis Gambaccini, American government official (d. 2018) 1932 – Ahmet Haxhiu, Kosovan activist (d. 1994) 1932 – Alexander Thynn, 7th Marquess of Bath, English lieutenant and politician (d. 2020) 1934 – Richard Shelby, American lawyer and politician 1937 – Rubin Carter, American-Canadian boxer (d. 2014) 1938 – Jean Garon, Canadian economist, lawyer, and politician (d. 2014) 1939 – Eddie C. Campbell, American singer and guitarist (d. 2018) 1939 – Chet Allen, American child actor (d. 1984) 1942 – Ariel Dorfman, Argentinian author, playwright, and academic 1943 – Andreas Baader, German terrorist, co-founded the Red Army Faction (d. 1977) 1943 – Milton William Cooper, American conspiracy theorist and author (d. 2001) 1943 – Wolfgang Reinhardt, German pole vaulter (d. 2011) 1943 – James Turrell, American sculptor and illustrator 1944 – Anton Furst, English-American production designer and art director (d. 1991) 1944 – Masanori Murakami, Japanese baseball player and coach 1945 – Jimmie Dale Gilmore, American country singer-songwriter, guitarist, actor, and producer 1945 – Bob Seger, American singer-songwriter and guitarist 1947 – Alan Dale, New Zealand actor 1947 – Martha Nussbaum, American philosopher and author 1947 – Ljubomir Vračarević, Serbian martial artist, founded Real Aikido (d. 2013) 1948 – Frankie Librán, Puerto Rican-American baseball player (d. 2013) 1950 – Jeffery Deaver, American journalist and author 1951 – Samuel Doe, Liberian sergeant and politician, 21st President of Liberia (d. 1990) 1952 – Gerrit Zalm, Dutch economist and politician, Deputy Prime Minister of the Netherlands 1953 – Alexander Akimov, Ukrainian Chernobyl worker (d. 1986) 1953 – Tony Blair, British politician, Prime Minister of the United Kingdom 1953 – Michelle Courchesne, Canadian urban planner and politician, Deputy Premier of Quebec 1953 – Ülle Rajasalu, Estonian politician 1953 – Graeme Souness, Scottish international footballer and manager 1954 – Tom Abernethy, American basketball player 1954 – Dora Bakoyannis, Greek politician, 120th Greek Minister for Foreign Affairs 1954 – Angela Hernández Nuñez, Dominican author and poet 1954 – Ain Lutsepp, Estonian actor and politician 1955 – Nicholas Alexander, 7th Earl of Caledon, English politician, Lord Lieutenant of Armagh 1955 – Tom Bergeron, American television host 1955 – John Hutton, Baron Hutton of Furness, English academic and politician, Secretary of State for Defence 1956 – Lakis Lazopoulos, Greek actor and screenwriter 1956 – Cindy Lovell, American educator and writer 1956 – Roland Wieser, German race walker and coach 1958 – Randall Stout, American architect, designed the Taubman Museum of Art (d. 2014) 1959 – Andreas Busse, German runner 1959 – Charles Hendry, English politician 1960 – Lyudmila Andonova, Bulgarian high jumper 1960 – Keith Dowding, English political scientist, philosopher, and academic 1960 – Roma Downey, Irish-American actress and producer 1960 – John Flansburgh, American singer-songwriter and guitarist 1960 – Aleksei Lotman, Estonian biologist and politician 1960 – Anne Parillaud, French actress 1961 – Oleksandr Apaychev, Ukrainian decathlete and coach 1961 – George Clooney, American actor, director, producer, and screenwriter 1961 – Tom Hunter, Scottish businessman and philanthropist 1961 – Gina Riley, Australian actress, producer, and screenwriter 1961 – Frans Timmermans, Dutch politician and diplomat, First Vice President of the European Commission 1962 – Tom Brake, English politician 1962 – Brad Izzard, Australian rugby league player 1963 – Alessandra Ferri, Italian ballerina 1965 – Leslie Hope, Canadian actress, director, producer, and screenwriter 1968 – Worku Bikila, Ethiopian runner 1968 – Lætitia Sadier, French singer and keyboard player 1969 – Jim Magilton, Northern Irish footballer and manager 1970 – Roland Kun, Nauruan politician 1970 – Kavan Smith, Canadian actor 1971 – Chris Shiflett, American singer-songwriter and guitarist 1972 – Martin Brodeur, Canadian ice hockey player 1972 – Naoko Takahashi, Japanese runner 1974 – Bernard Barmasai, Kenyan runner 1974 – Daniela Bártová, Czech pole vaulter and gymnast 1975 – Alan Richardson, English cricketer and coach 1976 – Dean Chandler, English footballer 1976 – Iván de la Peña, Spanish footballer 1977 – Christophe Brandt, Belgian cyclist 1977 – Marc Chouinard, Canadian ice hockey player 1977 – Mark Eaton, American ice hockey player and coach 1977 – Chantelle Newbery, Australian diver 1978 – John Abraham, American football player 1978 – Tony Estanguet, French slalom canoeist 1978 – Fredrick Federley, Swedish journalist and politician 1978 – Alexandr Fedorov, Russian bodybuilder 1979 – Gerd Kanter, Estonian discus thrower 1979 – Jan Erik Mikalsen, Norwegian composer 1979 – Jon Montgomery, Canadian skeleton racer and television host 1980 – Brooke Bennett, American swimmer 1980 – Dimitris Diamantidis, Greek professional basketball player 1980 – Ricardo Oliveira, Brazilian footballer 1980 – Matthew Whiley, English cricketer 1982 – Jason Witten, American football player 1983 – Dani Alves, Brazilian footballer 1983 – Ingrid Jonach, Australian author 1983 – Doron Perkins, American basketball player 1983 – Gabourey Sidibe, American actress 1983 – Trinley Thaye Dorje, Tibetan religious leader, the 17th Karmapa Lama 1983 – Fredrik Sjöström, Swedish ice hockey player 1984 – Anton Babchuk, Ukrainian ice hockey player 1984 – Juan Pablo Carrizo, Argentinian footballer 1985 – Chris Paul, American basketball player 1986 – Goran Dragic, Slovenian basketball player 1987 – Dries Mertens, Belgian footballer 1987 – Meek Mill, American rapper 1987 – Adrienne Warren, American actress 1988 – Ryan Anderson, American basketball player 1988 – Dakota Kai, New Zealander profesional wrestler 1989 – Dominika Cibulková, Slovak tennis player 1989 – Jesse Hughes, Canadian DJ and producer 1990 – José Altuve, Venezuelan baseball player 1992 – Brendan Gallagher, Canadian ice hockey player 1992 – Byun Baekhyun, South Korean musician and actor 1992 – Jonas Valančiūnas, Lithuanian professional basketball player 1993 – Gustavo Gómez, Paraguayan footballer 1994 – Mateo Kovačić, Austrian-Croatian footballer 1997 – Duncan Scott, Scottish swimmer 2019 – Archie Mountbatten-Windsor, British royal Deaths Pre-1600 698 – Eadberht, bishop of Lindisfarne 850 – Ninmyō, Japanese emperor (b. 808) 932 – Qian Liu, Chinese warlord and king (b. 852) 988 – Dirk II, count of Frisia and Holland 1002 – Ealdwulf, Archbishop of York, Abbot of Peterborough and Bishop of Worcester 1187 – Ruben III, Prince of Armenia (b. 1145) 1236 – Roger of Wendover, Benedictine monk and chronicler 1471 – Edmund Beaufort, English commander (b. 1438) 1471 – Thomas Tresham, Speaker of the House of Commons 1475 – Dieric Bouts, Flemish painter (b. 1415) 1483 – Queen Jeonghui, Korean regent (b. 1418) 1502 – James Tyrrell, English knight (b. 1450) 1527 – Charles III, Duke of Bourbon, Count of Montpensier and Dauphin of Auvergne (b.1490) 1540 – Juan Luís Vives, Spanish scholar (b. 1492) 1596 – Giaches de Wert, Flemish-Italian composer (b. 1535) 1601–1900 1631 – Sir Robert Cotton, 1st Baronet, of Connington, English historian and politician, founded the Cotton library (b. 1570) 1638 – Cornelius Jansen, Dutch-French bishop and theologian (b. 1585) 1708 – François de Laval, French-Canadian bishop (b. 1623) 1757 – Charles FitzRoy, 2nd Duke of Grafton, English politician, Lord Lieutenant of Ireland (b. 1683) 1757 – Kurt Christoph Graf von Schwerin, Prussian field marshal (b. 1684) 1782 – Christine Kirch, German astronomer and academic (b. 1696) 1840 – Francisco de Paula Santander, Colombian general and politician, 4th President of the Republic of the New Granada (b. 1792) 1859 – Alexander von Humboldt, German geographer and explorer (b. 1769) 1862 – Henry David Thoreau, American essayist, poet, and philosopher (b. 1817) 1867 – Socrates Nelson, American businessman and politician (b. 1814) 1877 – Johan Ludvig Runeberg, Swedish-Finnish poet and hymn-writer (b. 1804) 1882 – Thomas Henry Burke, Irish civil servant (b. 1829) 1882 – Lord Frederick Cavendish, British politician, Chief Secretary for Ireland (b. 1836) 1901–present 1905 – Robert Herbert, English-Australian politician, 1st Premier of Queensland (b. 1831) 1907 – Emanuele Luigi Galizia, Maltese architect and civil engineer (b. 1830) 1910 – Edward VII of the United Kingdom (b. 1841) 1919 – L. Frank Baum, American novelist (b. 1856) 1939 – Konstantin Somov, Russian-French painter and illustrator (b. 1869) 1949 – Maurice Maeterlinck, Belgian-French poet and playwright, Nobel Prize laureate (b. 1862) 1951 – Élie Cartan, French mathematician and physicist (b. 1869) 1952 – Maria Montessori, Italian-Dutch physician and educator (b. 1870) 1959 – Maria Dulęba, Polish actress (b. 1881) 1959 – Ragnar Nurkse, Estonian-American economist and academic (b. 1907) 1961 – Lucian Blaga, Romanian poet, playwright, and philosopher (b. 1895) 1963 – Theodore von Kármán, Hungarian-American mathematician, physicist, and engineer (b. 1881) 1963 – Ted Weems, American violinist, trombonist, and bandleader (b. 1901) 1963 – Monty Woolley, American raconteur, actor, and director (b. 1888) 1967 – Zhou Zuoren, Chinese author and translator (b. 1885) 1970 – Alexander Rodzyanko, Russian general (b. 1879) 1973 – Ernest MacMillan, Canadian conductor and composer (b. 1893) 1975 – József Mindszenty, Hungarian cardinal (b. 1892) 1980 – María Luisa Bombal, Chilean writer (b. 1910) 1983 – Ezra Jack Keats, American author and illustrator (b. 1916) 1983 – Kai Winding, Danish-American trombonist and composer (b. 1922) 1984 – Mary Cain, American journalist and politician (b. 1904) 1984 – Bonner Pink, English politician (b. 1912) 1987 – William J. Casey, American politician, 13th Director of Central Intelligence (b. 1913) 1989 – Earl Blaik, American football player and coach (b. 1897) 1990 – Charles Farrell, American actor (b. 1900) 1991 – Wilfrid Hyde-White, English actor (b. 1903) 1992 – Marlene Dietrich, German-American actress and singer (b. 1901) 1993 – Ann Todd, English actress and producer (b. 1909) 1995 – Noel Brotherston, Northern Irish footballer (b. 1956) 2000 – Gordon McClymont, Australian ecologist and academic (b. 1920) 2002 – Murray Adaskin, Canadian violinist, composer, conductor, and educator (b. 1906) 2002 – Otis Blackwell, American singer-songwriter and pianist (b. 1932) 2002 – Pim Fortuyn, Dutch sociologist, academic, and politician (b. 1948) 2002 – Bjørn Johansen, Norwegian saxophonist (b. 1940) 2003 – Art Houtteman, American baseball player and journalist (b. 1927) 2004 – Virginia Capers, American actress and singer (b. 1925) 2004 – Philip Kapleau, American monk and educator (b. 1912) 2004 – Barney Kessel, American guitarist and composer (b. 1923) 2006 – Grant McLennan, Australian singer-songwriter and guitarist (b. 1958) 2006 – Lorne Saxberg, Canadian journalist (b. 1958) 2007 – Enéas Carneiro, Brazilian physician and politician (b. 1938) 2007 – Curtis Harrington, American actor, director, and screenwriter (b. 1926) 2009 – Kevin Grubb, American race car driver (b. 1978) 2010 – Robin Roberts, American baseball player, coach, and sportscaster (b. 1926) 2012 – James R. Browning, American lieutenant, lawyer, and judge (b. 1918) 2012 – James Isaac, American director and producer (b. 1960) 2012 – Jean Laplanche, French psychoanalyst and author (b. 1924) 2013 – Giulio Andreotti, Italian journalist and politician, 41st Prime Minister of Italy (b. 1919) 2013 – Severo Aparicio Quispe, Peruvian bishop (b. 1923) 2013 – Michelangelo Spensieri, Italian-Canadian lawyer and politician (b. 1949) 2014 – Wil Albeda, Dutch economist and politician, Dutch Minister of Social Affairs (b. 1925) 2014 – William H. Dana, American pilot, engineer, and astronaut (b. 1930) 2014 – Jimmy Ellis, American boxer (b. 1940) 2014 – Billy Harrell, American baseball player and scout (b. 1928) 2014 – Antony Hopkins, English pianist, composer, and conductor (b. 1921) 2014 – Maria Lassnig, Austrian painter and academic (b. 1919) 2014 – Farley Mowat, Canadian environmentalist and author (b. 1921) 2015 – Novera Ahmed, Bangladeshi sculptor (b. 1930) 2015 – Denise McCluggage, American race car driver and journalist (b. 1927) 2015 – Jim Wright, American soldier, lawyer, and politician, 56th Speaker of the United States House of Representatives (b. 1922) 2016 – Patrick Ekeng, Cameroonian footballer (b. 1990) 2016 – Reg Grundy, Australian businessman (b. 1923) Holidays and observances Christian Feast Day: Dominic Savio Evodius of Antioch (Roman Catholic Church) François de Laval Gerard of Lunel Lucius of Cyrene Petronax of Monte Cassino St George's Day related observances (Eastern Orthodox Church): Day of Bravery, also known as Gergyovden (Bulgaria) Đurđevdan (Gorani, Roma) Police Day (Georgia) Yuri's Day in the Spring (Russian Orthodox Church) St John before the Latin Gate May 6 (Eastern Orthodox liturgics) Earliest day on which Military Spouse Day can fall, while May 12 is the latest; celebrated on Friday before Mother's Day (United States) International No Diet Day Martyrs' Day (Gabon) Martyrs' Day (Lebanon and Syria) National Azulejo Day (Portugal) Teachers' Day (Jamaica) The first day of Hıdırellez (Turkey) References External links BBC: On This Day Historical Events on May 6 Today in Canadian History Days of the year May

19516

https://en.wikipedia.org/wiki/March%202

March 2

Events Pre-1600 537 – Siege of Rome: The Ostrogoth army under king Vitiges begins the siege of the capital. Belisarius conducts a delaying action outside the Flaminian Gate; he and a detachment of his bucellarii are almost cut off. 986 – Louis V becomes the last Carolingian king of West Francia after the death of his father, Lothaire. 1444 – Skanderbeg organizes a group of Albanian nobles to form the League of Lezhë. 1458 – George of Poděbrady is chosen as the king of Bohemia. 1476 – Burgundian Wars: The Old Swiss Confederacy hands Charles the Bold, Duke of Burgundy, a major defeat in the Battle of Grandson in Canton of Neuchâtel. 1484 – The College of Arms is formally incorporated by Royal Charter signed by King Richard III of England. 1498 – Vasco da Gama's fleet visits the Island of Mozambique. 1601–1900 1657 – The Great Fire of Meireki begins in Edo (now Tokyo), Japan, causing more than 100,000 deaths before it exhausts itself three days later. 1776 – American Revolutionary War: Patriot militia units attempt to prevent capture of supply ships in and around the Savannah River by a small fleet of the Royal Navy in the Battle of the Rice Boats. 1791 – Claude Chappe demonstrates the first semaphore line near Paris. 1797 – The Bank of England issues the first one-pound and two-pound banknotes. 1807 – The U.S. Congress passes the Act Prohibiting Importation of Slaves, disallowing the importation of new slaves into the country. 1811 – Argentine War of Independence: A royalist fleet defeats a small flotilla of revolutionary ships in the Battle of San Nicolás on the River Plate. 1815 – Signing of the Kandyan Convention treaty by British invaders and the leaders of the Kingdom of Kandy. 1836 – Texas Revolution: The Declaration of independence of the Republic of Texas from Mexico is adopted. 1855 – Alexander II becomes Tsar of Russia. 1859 – The two-day Great Slave Auction, the largest such auction in United States history, begins. 1865 – East Cape War: The Völkner Incident in New Zealand. 1867 – The U.S. Congress passes the first Reconstruction Act. 1877 – Just two days before inauguration, the U.S. Congress declares Rutherford B. Hayes the winner of the 1876 U.S. presidential election even though Samuel J. Tilden had won the popular vote. 1882 – Queen Victoria narrowly escapes an assassination attempt by Roderick Maclean in Windsor. 1901–present 1901 – United States Steel Corporation is founded as a result of a merger between Carnegie Steel Company and Federal Steel Company which became the first corporation in the world with a market capital over $1 billion. 1901 – The U.S. Congress passes the Platt Amendment limiting the autonomy of Cuba, as a condition of the withdrawal of American troops. 1903 – In New York City the Martha Washington Hotel opens, becoming the first hotel exclusively for women. 1917 – The enactment of the Jones–Shafroth Act grants Puerto Ricans United States citizenship. 1919 – The first Communist International meets in Moscow. 1932 – Finnish president P. E. Svinhufvud gave a radio speech, which four days later finally ended the Mäntsälä Rebellion and the far-right Lapua Movement that started it. 1937 – The Steel Workers Organizing Committee signs a collective bargaining agreement with U.S. Steel, leading to unionization of the United States steel industry. 1939 – Cardinal Eugenio Pacelli is elected Pope and takes the name Pius XII. 1941 – World War II: First German military units enter Bulgaria after it joins the Axis Pact. 1943 – World War II: Allied aircraft defeat a Japanese attempt to ship troops to New Guinea. 1949 – Captain James Gallagher lands his B-50 Superfortress Lucky Lady II in Fort Worth, Texas, after completing the first non-stop around-the-world airplane flight in 94 hours and one minute. 1955 – Norodom Sihanouk, king of Cambodia, abdicates the throne in favor of his father, Norodom Suramarit. 1962 – In Burma, the army led by General Ne Win seizes power in a coup d'état. 1962 – Wilt Chamberlain sets the single-game scoring record in the National Basketball Association by scoring 100 points. 1965 – The US and Republic of Vietnam Air Force begin Operation Rolling Thunder, a sustained bombing campaign against North Vietnam. 1968 – Baggeridge Colliery closes marking the end of over 300 years of coal mining in the Black Country. 1969 – In Toulouse, France, the first test flight of the Anglo-French Concorde is conducted. 1970 – Rhodesia declares itself a republic, breaking its last links with the British crown. 1972 – The Pioneer 10 space probe is launched from Cape Canaveral, Florida with a mission to explore the outer planets. 1977 – Libya becomes the Socialist People's Libyan Arab Jamahiriya as the General People's Congress adopted the "Declaration on the Establishment of the Authority of the People". 1978 – Czech Vladimír Remek becomes the first non-Russian or non-American to go into space, when he is launched aboard Soyuz 28. 1983 – Compact discs and players are released for the first time in the United States and other markets. They had previously been available only in Japan. 1989 – Twelve European Community nations agree to ban the production of all chlorofluorocarbons (CFCs) by the end of the century. 1990 – Nelson Mandela is elected deputy President of the African National Congress. 1991 – Battle at Rumaila oil field brings an end to the 1991 Gulf War. 1992 – Start of the war in Transnistria. 1992 – Armenia, Azerbaijan, Kazakhstan, Kyrgyzstan, Moldova, San Marino, Tajikistan, Turkmenistan and Uzbekistan, all of which (except San Marino) were former Soviet republics, join the United Nations. 1995 – Researchers at Fermilab announce the discovery of the top quark. 1998 – Data sent from the Galileo spacecraft indicates that Jupiter's moon Europa has a liquid ocean under a thick crust of ice. 2002 – U.S. invasion of Afghanistan: Operation Anaconda begins, (ending on March 19 after killing 500 Taliban and al-Qaeda fighters, with 11 Western troop fatalities). 2004 – War in Iraq: Al-Qaeda carries out the Ashoura Massacre in Iraq, killing 170 and wounding over 500. 2012 – A tornado outbreak occurs over a large section of the Southern United States and into the Ohio Valley region, resulting in 40 tornado-related fatalities. 2017 – The elements Moscovium, Tennessine, and Oganesson are officially added to the periodic table at a conference in Moscow, Russia. Births Pre-1600 480 – Benedict of Nursia, Italian Christian saint (d. 543 or 547) 1316 – Robert II of Scotland (d. 1390) 1409 – Jean II, Duke of Alençon (d. 1476) 1432 – Countess Palatine Margaret of Mosbach, countess consort of Hanau (d. 1457) 1453 – Johannes Engel, German doctor, astronomer and astrologer (d. 1512) 1459 – Pope Adrian VI (d. 1523) 1481 – Franz von Sickingen, German knight (d. 1523) 1545 – Thomas Bodley, English diplomat and scholar, founded the Bodleian Library (d. 1613) 1577 – George Sandys, English traveller, colonist and poet (d. 1644) 1601–1900 1628 – Cornelis Speelman, Governor-General of the Dutch East Indies (d. 1684) 1651 – Carlo Gimach, Maltese architect, engineer and poet (d. 1730) 1705 – William Murray, 1st Earl of Mansfield, Scottish lawyer, judge, and politician, Chancellor of the Exchequer (d. 1793) 1740 – Nicholas Pocock, English naval painter (d.1821) 1760 – Camille Desmoulins, French journalist and politician (d. 1794) 1769 – DeWitt Clinton, American lawyer and politician, 6th Governor of New York (d. 1828) 1770 – Louis-Gabriel Suchet, French general (d. 1826) 1779 – Joel Roberts Poinsett, American physician and politician, 15th United States Secretary of War (d. 1851) 1793 – Sam Houston, American soldier and politician, 1st President of the Republic of Texas (d. 1863) 1800 – Yevgeny Baratynsky, Russian-Italian poet and philosopher (d. 1844) 1810 – Pope Leo XIII (d. 1903) 1816 – Alexander Bullock, American lawyer and politician, 26th Governor of Massachusetts (d. 1882) 1817 – János Arany, Hungarian journalist and poet (d. 1882) 1820 – Multatuli, Dutch writer (d. 1887) 1824 – Bedřich Smetana, Czech pianist and composer (d. 1884) 1829 – Carl Schurz, German-American general, lawyer, and politician, 13th United States Secretary of the Interior (d. 1906) 1836 – Henry Billings Brown, American lawyer and judge (d. 1913) 1842 – Carl Jacobsen, Danish brewer, art collector, and philanthropist (d. 1914) 1846 – Marie Roze, French soprano (d. 1926) 1849 – Robert Means Thompson, American commander, lawyer, and businessman (d. 1930) 1859 – Sholem Aleichem, Ukrainian-American author and playwright (d. 1916) 1860 – Susanna M. Salter, American activist and politician (d. 1961) 1862 – John Jay Chapman, American lawyer, author, and poet (d. 1933) 1869 – Julien Félix, French military officer and aviator (d. 1914) 1876 – James A. Gilmore, American businessman and baseball executive (d. 1947) 1876 – Pope Pius XII (d. 1958) 1878 – William Kissam Vanderbilt II, American sailor and race car driver (d. 1944) 1886 – Willis H. O'Brien, American animator and director (d. 1962) 1886 – Kurt Grelling, German logician and philosopher (d. 1942) 1900 – Kurt Weill, German-American pianist and composer (d. 1950) 1901–present 1901 – Grete Hermann, German mathematician and philosopher (d. 1984) 1902 – Moe Berg, American baseball player and spy (d. 1972) 1902 – Edward Condon, American physicist and academic (d. 1974) 1904 – Dr. Seuss, American children's book writer, poet, and illustrator (d. 1991) 1905 – Marc Blitzstein, American composer and songwriter (d. 1964) 1905 – Geoffrey Grigson, English poet and critic (d. 1985) 1908 – Walter Bruch, German engineer (d. 1990) 1909 – Mel Ott, American baseball player, manager, and sportscaster (d. 1958) 1912 – Henry Katzman, American pianist, composer, and painter (d. 2001) 1913 – Godfried Bomans, Dutch television host and author (d. 1971) 1913 – Mort Cooper, American baseball player (d. 1958) 1914 – Martin Ritt, American actor and film director (d. 1990) 1915 – John Burton, Australian public servant and diplomat, Australian High Commissioner to Ceylon (d. 2010) 1917 – Desi Arnaz, Cuban-American actor, singer, and producer (d. 1986) 1917 – David Goodis, American author and screenwriter (d. 1967) 1917 – Jim Konstanty, American baseball player and coach (d. 1976) 1919 – Jennifer Jones, American actress (d. 2009) 1919 – Eddie Lawrence, American actor, singer, and playwright (d. 2014) 1919 – Tamara Toumanova, Russian-American ballerina and actress (d. 1996) 1921 – Kazimierz Górski, Polish footballer and coach (d. 2006) 1921 – Ernst Haas, Austrian-American photographer and journalist (d. 1986) 1922 – Eddie "Lockjaw" Davis, American saxophonist (d. 1986) 1922 – Bill Quackenbush, Canadian-American ice hockey player and coach (d. 1999) 1922 – Frances Spence, American computer programmer (d. 2012) 1923 – Basil Hume, English cardinal (d. 1999) 1923 – Robert H. Michel, American soldier and politician (d. 2017) 1923 – Dave Strack, American basketball player and coach (d. 2014) 1924 – Cal Abrams, American baseball player (d. 1997) 1924 – Renos Apostolidis, Greek philologist, author, and critic (d. 2004) 1926 – Bernard Agré, Ivorian cardinal (d. 2014) 1926 – Murray Rothbard, American economist and historian (d. 1995) 1927 – Roger Walkowiak, French cyclist and economist (d. 2017) 1930 – John Cullum, American actor and singer 1930 – Emma Penella, Spanish actress (d. 2007) 1930 – Tom Wolfe, American journalist and author (d. 2018) 1931 – Mikhail Gorbachev, Russian lawyer and politician, President of the Soviet Union, Nobel Prize laureate 1932 – Gun Hägglund, Swedish journalist and translator (d. 2011) 1934 – Dottie Rambo, American singer-songwriter (d. 2008) 1935 – Gene Stallings, American football player and coach 1936 – Haroon Ahmed, Pakistani-English engineer and academic 1936 – John Tusa, Czech-English journalist and academic 1937 – Abdelaziz Bouteflika, Algerian soldier and politician, 5th President of Algeria (d. 2021) 1938 – Ricardo Lagos, Chilean economist, lawyer, and politician, 33rd President of Chile 1938 – Lawrence Payton, American singer-songwriter and producer (d. 1997) 1938 – Clark Gesner, American author and composer (d. 2002) 1939 – Jan Howard Finder, American author and academic (d. 2013) 1940 – Billy McNeill, Scottish footballer (d. 2019) 1941 – John Cornell, Australian actor, director, and producer 1941 – David Satcher, American admiral and physician, 16th Surgeon General of the United States 1942 – John Irving, American novelist and screenwriter 1942 – Claude Larose, Canadian ice hockey player and coach 1942 – Mir-Hossein Mousavi, Iranian architect and politician, 79th Prime Minister of Iran 1942 – Lou Reed, American singer-songwriter, guitarist, producer, and actor (d. 2013) 1942 – Derek Woodley, English footballer (d. 2002) 1943 – George Layton, English actor, director, and screenwriter 1943 – Peter Straub, American author and poet 1943 – Robert Williams, American painter and cartoonist 1945 – Derek Watkins, English trumpet player and composer (d. 2013) 1947 – Nelson Ned, Brazilian singer-songwriter (d. 2014) 1947 – Harry Redknapp, English footballer and manager 1948 – Larry Carlton, American guitarist and songwriter 1948 – Rory Gallagher, Irish singer-songwriter, guitarist, and producer (d. 1995) 1948 – Jeff Kennett, Australian journalist and politician, 43rd Premier of Victoria 1948 – Carmen Lawrence, Australian politician, 25th Premier of Western Australia 1950 – Karen Carpenter, American singer (d. 1983) 1952 – Mark Evanier, American author and screenwriter 1952 – Laraine Newman, American actress and comedian 1953 – Russ Feingold, American lawyer and politician 1954 – Ed Johnstone, Canadian ice hockey player and coach 1955 – Dale Bozzio, American pop-rock singer-songwriter 1955 – Jay Osmond, American singer, drummer, actor, and TV/film producer 1955 – Ken Salazar, American lawyer and politician, 50th United States Secretary of the Interior 1955 – Steve Small, Australian cricketer 1956 – John Cowsill, American musician, songwriter, and producer 1956 – Mark Evans, Australian rock bass player 1957 – Hossein Dehghan, Iranian general and politician, Iranian Minister of Defense 1957 – Dito Tsintsadze, Georgian film director and screenwriter 1957 – Mark Dean, American inventor and computer engineer 1958 – Kevin Curren, South African-American tennis player 1958 – Ian Woosnam, English-Welsh golfer 1959 – Larry Stewart, American singer-songwriter and guitarist 1961 – Simone Young, Australian conductor, director, and composer 1962 – Jon Bon Jovi, American singer-songwriter, guitarist, producer, and actor 1962 – Paul Farrelly, English journalist and politician 1962 – Tom Nordlie, Norwegian footballer and coach 1962 – Brendan O'Connor, Australian politician, Australian Minister for Employment 1962 – Raimo Summanen, Finnish ice hockey player and coach 1962 – Gabriele Tarquini, Italian race car driver 1963 – Alvin Youngblood Hart, American singer and guitarist 1963 – Anthony Albanese, Australian politician, 15th Deputy Prime Minister of Australia 1964 – Laird Hamilton, American surfer and actor 1964 – Mike Von Erich, American wrestler (d. 1987) 1965 – Ron Gant, American baseball player and journalist 1965 – Lembit Öpik, Northern Irish politician 1966 – Ann Leckie, American author 1966 – Simon Reevell, English lawyer and politician 1968 – Daniel Craig, English actor and producer 1970 – James Purnell, English politician, Secretary of State for Work and Pensions 1970 – Ciriaco Sforza, Swiss footballer and manager 1970 – Wibi Soerjadi, Dutch pianist and composer 1971 – Dave Gorman, English comedian, author and television presenter 1971 – Method Man, American rapper, record producer and actor 1972 – Mauricio Pochettino, Argentinian footballer and manager 1973 – Dejan Bodiroga, Serbian basketball player 1973 – Trevor Sinclair, English footballer and manager 1974 – Hayley Lewis, Australian swimmer and television host 1975 – Daryl Gibson, New Zealand rugby player 1977 – Dominique Canty, American basketball player and coach 1977 – Chris Martin, English singer-songwriter and producer 1977 – Stephen Parry, English swimmer and sportscaster 1977 – Andrew Strauss, South African-English cricketer 1978 – Gabby Eigenmann, Filipino actor and singer 1978 – Lee Hodges, English footballer and manager 1978 – Tomáš Kaberle, Czech ice hockey player 1979 – Damien Duff, Irish international footballer 1979 – Jim Troughton, English cricketer 1979 – Nicky Weaver, English footballer 1980 – Chris Barker, English footballer and manager (d. 2020) 1980 – Rebel Wilson, Australian actress and screenwriter 1981 – Lance Cade, American wrestler (d. 2010) 1981 – Bryce Dallas Howard, American actress 1982 – Kevin Kurányi, German footballer 1982 – Henrik Lundqvist, Swedish ice hockey player 1982 – Ben Roethlisberger, American football player 1982 – Corey Webster, American football player 1983 – Deuce, American singer-songwriter and producer 1983 – Lisandro López, Argentinian footballer 1983 – Jay McClement, Canadian ice hockey player 1983 – Glen Perkins, American baseball player 1983 – Ryan Shannon, American ice hockey player 1985 – Reggie Bush, American football player 1985 – Suso Santana, Spanish footballer 1986 – Jonathan D'Aversa, Canadian ice hockey player 1987 – Jonas Jerebko, Swedish basketball player 1988 – Édgar Andrade, Mexican footballer 1988 – James Arthur, English singer-songwriter 1988 – Laura Kaeppeler, Miss America 2012 1988 – Matthew Mitcham, Australian diver 1988 – Chris Rainey, American football player 1988 – Geert Arend Roorda, Dutch footballer 1989 – Alemão, Brazilian footballer 1989 – Toby Alderweireld, Belgian international footballer 1989 – André Bernardes Santos, Portuguese footballer 1989 – Marcel Hirscher, Austrian skier 1989 – Shane Vereen, American football player 1989 – Chris Woakes, English cricketer 1990 – Rauno Alliku, Estonian footballer 1990 – Malcolm Butler, American football player 1990 – Josh McGuire, Australian rugby league player 1990 – Tiger Shroff, Indian actor 1991 – Nick Franklin, American baseball player 1992 – Jack Stockwell, Australian rugby league player 1995 – Ange-Freddy Plumain, French footballer 1997 – Becky G, American singer and actress 2010 – Hailey Dawson, American with a 3D-printed robotic hand 2016 – Prince Oscar, duke of Skåne and prince of Sweden Deaths Pre-1600 274 – Mani, Persian prophet and founder of Manichaeism (b. 216) 672 – Chad of Mercia, English bishop and saint (b. 634) 986 – Lothair, king of West Francia (b.941) 968 – William, archbishop of Mainz (b. 929) 1009 – Mokjong, king of Goryeo (b. 980) 1127 – Charles the Good, Count of Flanders (b. 1084) 1316 – Marjorie Bruce, Scottish daughter of Robert the Bruce (b. 1296) 1333 – Wladyslaw I, king of Poland (b. 1261) 1589 – Alessandro Farnese, Italian cardinal and diplomat (b. 1520) 1601–1900 1619 – Anne of Denmark, queen of Scotland (b. 1574) 1729 – Francesco Bianchini, Italian astronomer and philosopher (b. 1662) 1755 – Louis de Rouvroy, French duke and diplomat (b. 1675) 1791 – John Wesley, English cleric and theologian (b. 1703) 1793 – Carl Gustaf Pilo, Swedish-Danish painter and academic (b. 1711) 1797 – Horace Walpole, English historian and politician (b. 1717) 1829 – Josefa Ortiz de Domínguez, Mexican revolutionary (b. ca. 1773) 1830 – Samuel Thomas von Sömmerring, German physician, anatomist, and anthropologist (b. 1755) 1835 – Francis II, Holy Roman Emperor (b. 1768) 1840 – Heinrich Wilhelm Matthias Olbers, German physician and astronomer (b. 1758) 1855 – Nicholas I, Russian emperor (b. 1796) 1864 – Ulric Dahlgren, American colonel (b. 1842) 1865 – Carl Sylvius Völkner, German-New Zealand priest and missionary (b. 1819) 1880 – John Benjamin Macneill, Irish engineer (b. 1790) 1895 – Berthe Morisot, French painter (b. 1841) 1895 – Isma'il Pasha, Egyptian politician (b. 1830) 1896 – Jubal Early, American general (b. 1816) 1901–present 1921 – Champ Clark, American lawyer and politician, 41st Speaker of the United States House of Representatives (b. 1850) 1930 – D. H. Lawrence, English novelist, poet, playwright, and critic (b. 1885) 1938 – Ben Harney, American pianist and composer (b. 1871) 1939 – Howard Carter, English archaeologist and historian (b. 1874) 1943 – Gisela Januszewska, Jewish-Austrian physician (b.1867) 1944 – Ida Maclean, British biochemist, the first woman admitted to the London Chemical Society (b. 1877) 1945 – Emily Carr, Canadian painter and author (b. 1871) 1946 – Fidél Pálffy, Hungarian politician, Hungarian Minister of Agriculture (b. 1895) 1946 – George E. Stewart, American colonel, Medal of Honor recipient (b. 1872) 1947 – Frans Johan Louwrens Ghijsels, Dutch architect and urban planner (b. 1882) 1949 – Sarojini Naidu, Indian poet and activist (b. 1879) 1953 – James Lightbody, American runner (b. 1882) 1957 – Selim Sırrı Tarcan, Turkish educator and politician (b. 1874) 1958 – Fred Merkle, American baseball player and manager (b. 1888) 1962 – Charles Jean de la Vallée-Poussin, Belgian mathematician and academic (b. 1866) 1967 – José Martínez Ruiz, Spanish author and critic (b. 1873) 1972 – Léo-Ernest Ouimet, Canadian director and producer (b. 1877) 1977 – Eugénie Brazier, French chef (b. 1895) 1979 – Christy Ring, Irish hurler (b. 1920) 1982 – Philip K. Dick, American philosopher and author (b. 1928) 1987 – Randolph Scott, American actor and director (b. 1898) 1987 – Lolo Soetoro, Indonesian geographer and academic (b. 1935) 1991 – Serge Gainsbourg, French singer-songwriter, actor, and director (b. 1928) 1992 – Sandy Dennis, American actress (b. 1937) 1994 – Anita Morris, American actress, singer, and dancer (b. 1943) 1999 – Dusty Springfield, English singer (b. 1939) 2000 – Sandra Schmirler, Canadian curler (b. 1963) 2003 – Hank Ballard, American singer-songwriter (b. 1927) 2003 – Malcolm Williamson, Australian pianist and composer (b. 1931) 2004 – Cormac McAnallen, Irish footballer (b. 1980) 2004 – Mercedes McCambridge, American actress (b. 1916) 2004 – Marge Schott, American businesswoman (b. 1928) 2005 – Martin Denny, American pianist and composer (b. 1911) 2007 – Thomas S. Kleppe, American soldier and politician, 41st United States Secretary of the Interior (b. 1919) 2007 – Clem Labine, American baseball player (b. 1926) 2007 – Ivan Safronov, Russian colonel and journalist (b. 1956) 2007 – Henri Troyat, Russian-French historian and author (b. 1911) 2008 – Jeff Healey, Canadian singer-songwriter and guitarist (b. 1966) 2009 – João Bernardo Vieira, Bissau-Guinean politician, President of Guinea-Bissau (b. 1939) 2010 – Winston Churchill, English journalist and politician (b. 1940) 2012 – Lawrence Anthony, South African environmentalist, explorer, and author (b. 1950) 2012 – Van T. Barfoot, American colonel, Medal of Honor recipient (b. 1919) 2012 – Norman St John-Stevas, English academic and politician, Chancellor of the Duchy of Lancaster (b. 1929) 2012 – James Q. Wilson, American political scientist and academic (b. 1931) 2013 – Peter Harvey, Australian journalist (b. 1944) 2013 – Giorgos Kolokithas, Greek basketball player (b. 1945) 2013 – Shabnam Shakeel, Pakistani poet and author (b. 1942) 2014 – Ryhor Baradulin, Belarusian poet and translator (b. 1935) 2015 – Dean Hess, American minister and colonel (b. 1917) 2015 – Dave Mackay, Scottish-English footballer and manager (b. 1934) 2015 – Mal Peet, English author and illustrator (b. 1947) 2016 – Benoît Lacroix, Canadian priest, historian, and philosopher (b. 1915) 2016 – Aubrey McClendon, American businessman (b. 1959) 2018 – Billy Herrington, American actor (b. 1969) 2018 – Lin Hu, Chinese lieutenant general (b. 1927) 2019 – Mike Oliver, British sociologist, disability rights activist (b. 1945) Holidays and observances Air Force Day (Sri Lanka) Baloch Culture Day (Balochistan) Christian feast day: Agnes of Bohemia Angela of the Cross Blessed Charles the Good, Count of Flanders Chad of Mercia (Catholic Church, Anglican Communion, Eastern Orthodox Church) John Maron March 2 (Eastern Orthodox liturgics) Feast of 'Alá (Loftiness), First day of the 19th month of the Baháʼí calendar (Baháʼí Faith) and first day of the Baháʼí Nineteen Day Fast Jamahiriya Day (Libya) National Read Across America Day (United States) Peasants' Day (Myanmar) Texas Independence Day Victory at Adwa Day (Ethiopia) References External links BBC: On This Day Historical Events on March 2 Today in Canadian History Days of the year March

19518

https://en.wikipedia.org/wiki/Mishnah

Mishnah

The Mishnah or the Mishna (; , "study by repetition", from the verb shanah , or "to study and review", also "secondary") is the first major written collection of the Jewish oral traditions which is known as the Oral Torah. It is also the first major work of rabbinic literature. The Mishnah was redacted by Judah ha-Nasi at the beginning of the 3rd century CE in a time when, according to the Talmud, the persecution of the Jews and the passage of time raised the possibility that the details of the oral traditions of the Pharisees from the Second Temple period (536 BCE – 70 CE) would be forgotten. Most of the Mishnah is written in Mishnaic Hebrew, but some parts are in Aramaic. The Mishnah consists of six orders (, singular ), each containing 7–12 tractates (, singular ; lit. "web"), 63 in total, and further subdivided into chapters and paragraphs. The word Mishnah can also indicate a single paragraph of the work, i.e. the smallest unit of structure in the Mishnah. For this reason the whole work is sometimes referred to in the plural form, . Structure The term "Mishnah" originally referred to a method of teaching by presenting topics in a systematic order, as contrasted with , which followed the order of the Bible. As a written compilation, the order of the Mishnah is by subject matter and includes a much broader selection of halakhic subjects, and discusses individual subjects more thoroughly, than the Midrash. The Mishnah consists of six orders (, singular ), each containing 7–12 tractates (, singular ; lit. "web"), 63 in total. Each is divided into chapters (, singular ) and then paragraphs (, singular ). In this last context, the word mishnah means a single paragraph of the work, i.e. the smallest unit of structure, leading to the use of the plural, "Mishnayot", for the whole work. Because of the division into six orders, the Mishnah is sometimes called Shas (an acronym for Shisha Sedarim – the "six orders"), although that term is more often used for the Talmud as a whole. The six orders are: Zeraim ("Seeds"), dealing with prayer and blessings, tithes and agricultural laws (11 tractates) Moed ("Festival"), pertaining to the laws of the Sabbath and the Festivals (12 tractates) Nashim ("Women"), concerning marriage and divorce, some forms of oaths and the laws of the nazirite (7 tractates) Nezikin ("Damages"), dealing with civil and criminal law, the functioning of the courts and oaths (10 tractates) Kodashim ("Holy things"), regarding sacrificial rites, the Temple, and the dietary laws (11 tractates) and Tohorot ("Purities"), pertaining to the laws of purity and impurity, including the impurity of the dead, the laws of food purity and bodily purity (12 tractates). In each order (with the exception of Zeraim), tractates are arranged from biggest (in number of chapters) to smallest. A popular mnemonic consists of the acronym "Z'MaN NaKaT." The Babylonian Talmud (Hagiga 14a) states that there were either six hundred or seven hundred orders of the Mishnah. Hillel the Elder organized them into six orders to make it easier to remember. The historical accuracy of this tradition is disputed. There is also a tradition that Ezra the scribe dictated from memory not only the 24 books of the Tanakh but 60 esoteric books. It is not known whether this is a reference to the Mishnah, but there is a case for saying that the Mishnah does consist of 60 tractates. (The current total is 63, but Makkot was originally part of Sanhedrin, and Bava Kamma, Bava Metzia and Bava Batra may be regarded as subdivisions of a single tractate Nezikin.) Reuvein Margolies (1889–1971) posited that there were originally seven orders of Mishnah, citing a Gaonic tradition on the existence of a seventh order containing the laws of Sta"m (scribal practice) and Berachot (blessings). Omissions A number of important laws are not elaborated upon in the Mishnah. These include the laws of tzitzit, tefillin (phylacteries), mezuzot, the holiday of Hanukkah, and the laws of conversion to Judaism. These were later discussed in the minor tractates. Nissim ben Jacob's Hakdamah Le'mafteach Hatalmud argued that it was unnecessary for Judah the Prince to discuss them as many of these laws were so well known. Margolies suggests that as the Mishnah was redacted after the Bar Kokhba revolt, Judah could not have included discussion of Hanukkah, which commemorates the Jewish revolt against the Seleucid Empire (the Romans would not have tolerated this overt nationalism). Similarly, there were then several decrees in place aimed at suppressing outward signs of national identity, including decrees against wearing tefillin and tzitzit; as conversion to Judaism was against Roman law, Judah would not have discussed this. David Zvi Hoffmann suggests that there existed ancient texts analogous to the present-day Shulchan Aruch that discussed the basic laws of day to day living and it was therefore not necessary to focus on these laws in the Mishnah. Mishnah, Gemara, and Talmud Rabbinic commentaries on the Mishnah from the next four centuries, done in the Land of Israel and in Babylonia, were eventually redacted and compiled as well. In themselves they are known as Gemara. The books which set out the Mishnah in its original structure, together with the associated Gemara, are known as Talmuds. Two Talmuds were compiled, the Babylonian Talmud (to which the term "Talmud" normally refers) and the Jerusalem Talmud. Unlike the Hebrew Mishnah, the Gemara is written primarily in Aramaic. Content and purpose The Mishnah teaches the oral traditions by example, presenting actual cases being brought to judgment, usually along with (i) the debate on the matter, and (ii) the judgment that was given by a notable rabbi based on halakha, mitzvot, and spirit of the teaching ("Torah") that guided his decision. In this way, the Mishnah brings to everyday reality the practice of the mitzvot as presented in the Torah, and aims to cover all aspects of human living, serve as an example for future judgments, and, most important, demonstrate pragmatic exercise of the Biblical laws, which was much needed since the time when the Second Temple was destroyed (70 CE). The Mishnah is thus not the development of new laws, but rather the collection of existing traditions. The term "Mishnah" is related to the verb "shanah", to teach or repeat, and to the adjectives "sheni" and "mishneh", meaning "second". It is thus named for being both the one written authority (codex) secondary (only) to the Tanakh as a basis for the passing of judgment, a source and a tool for creating laws, and the first of many books to complement the Tanakh in certain aspects. Oral law Before the publication of the Mishnah, Jewish scholarship and judgement were predominantly oral, as according to the Talmud, it was not permitted to write them down. The earliest recorded oral law may have been of the midrashic form, in which halakhic discussion is structured as exegetical commentary on the Torah. Rabbis expounded on and debated the Tanakh, the Hebrew Bible, without the benefit of written works (other than the Biblical books themselves), though some may have made private notes () for example of court decisions. The oral traditions were far from monolithic, and varied among various schools, the most famous of which were the House of Shammai and the House of Hillel. After First Jewish–Roman War in 70 CE, with the end of the Second Temple Jewish center in Jerusalem, Jewish social and legal norms were in upheaval. The Rabbis were faced with the new reality of Judaism without a Temple (to serve as the center of teaching and study) and Judea without autonomy. It is during this period that Rabbinic discourse began to be recorded in writing. The possibility was felt that the details of the oral traditions of the Pharisees from the Second Temple period (530s BCE – 70 CE) would be forgotten, so the justification was found to have these oral laws transcribed. Over time, different traditions of the Oral Law came into being, raising problems of interpretation. According to the Mevo Hatalmud, many rulings were given in a specific context but would be taken out of it, or a ruling was revisited, but the second ruling would not become popularly known. To correct this, Judah the Prince took up the redaction of the Mishnah. If a point was of no conflict, he kept its language; where there was conflict, he reordered the opinions and ruled, and he clarified where context was not given. The idea was not to use his discretion, but rather to examine the tradition as far back as he could, and only supplement as required. The Mishnah and the Hebrew Bible According to Rabbinic Judaism, the Oral Torah () was given to Moses with the Torah at Mount Sinai or Mount Horeb as an exposition to the latter. The accumulated traditions of the Oral Law, expounded by scholars in each generation from Moses onward, is considered as the necessary basis for the interpretation, and often for the reading, of the Written Law. Jews sometimes refer to this as the Masorah (Hebrew: ), roughly translated as tradition, though that word is often used in a narrower sense to mean traditions concerning the editing and reading of the Biblical text (see Masoretic Text). The resulting Jewish law and custom is called halakha. While most discussions in the Mishnah concern the correct way to carry out laws recorded in the Torah, it usually presents its conclusions without explicitly linking them to any scriptural passage, though scriptural quotations do occur. For this reason it is arranged in order of topics rather than in the form of a Biblical commentary. (In a very few cases, there is no scriptural source at all and the law is described as Halakha leMoshe miSinai, "law to Moses from Sinai".) The Midrash halakha, by contrast, while presenting similar laws, does so in the form of a Biblical commentary and explicitly links its conclusions to details in the Biblical text. These Midrashim often predate the Mishnah. The Mishnah also quotes the Torah for principles not associated with law, but just as practical advice, even at times for humor or as guidance for understanding historical debates. Rejection Some Jews do not accept the codification of the oral law at all. Karaite Judaism, for example, recognises only the Tanakh as authoritative in Halakha (Jewish religious law) and theology. It rejects the codification of the Oral Torah in the Mishnah and Talmud and subsequent works of mainstream Rabbinic Judaism which maintain that the Talmud is an authoritative interpretation of the Torah. Karaites maintain that all of the divine commandments handed down to Moses by God were recorded in the written Torah without additional Oral Law or explanation. As a result, Karaite Jews do not accept as binding the written collections of the oral tradition in the Midrash or Talmud. The Karaites comprised a significant portion of the world Jewish population in the 10th and 11th centuries CE, and remain extant, although they currently number in the thousands. Authorship The rabbis who contributed to the Mishnah are known as the Tannaim, of whom approximately 120 are known. The period during which the Mishnah was assembled spanned about 130 years, or five generations, in the first and second centuries CE. Judah ha-Nasi is credited with the final redaction and publication of the Mishnah, although there have been a few additions since his time: those passages that cite him or his grandson, Judah II, and the end of tractate Sotah, which refers to the period after Judah's death. In addition to redacting the Mishnah, Judah and his court also ruled on which opinions should be followed, although the rulings do not always appear in the text. Most of the Mishnah is related without attribution (). This usually indicates that many sages taught so, or that Judah the Prince ruled so. The halakhic ruling usually follows that view. Sometimes, however, it appears to be the opinion of a single sage, and the view of the sages collectively (, hachamim) is given separately. As Judah the Prince went through the tractates, the Mishnah was set forth, but throughout his life some parts were updated as new information came to light. Because of the proliferation of earlier versions, it was deemed too hard to retract anything already released, and therefore a second version of certain laws were released. The Talmud refers to these differing versions as ("First Mishnah") and ("Last Mishnah"). David Zvi Hoffmann suggests that Mishnah Rishonah actually refers to texts from earlier Sages upon which Rebbi based his Mishnah. The Talmud records a tradition that unattributed statements of the law represent the views of Rabbi Meir (Sanhedrin 86a), which supports the theory (recorded by Sherira Gaon in his famous Iggeret) that he was the author of an earlier collection. For this reason, the few passages that actually say "this is the view of Rabbi Meir" represent cases where the author intended to present Rabbi Meir's view as a "minority opinion" not representing the accepted law. There are also references to the "Mishnah of Rabbi Akiva", suggesting a still earlier collection; on the other hand, these references may simply mean his teachings in general. Another possibility is that Rabbi Akiva and Rabbi Meir established the divisions and order of subjects in the Mishnah, making them the authors of a school curriculum rather than of a book. Authorities are divided on whether Rabbi Judah the Prince recorded the Mishnah in writing or established it as an oral text for memorisation. The most important early account of its composition, the Iggeret Rav Sherira Gaon (Epistle of Rabbi Sherira Gaon) is ambiguous on the point, although the Spanish recension leans to the theory that the Mishnah was written. However, the Talmud records that, in every study session, there was a person called the tanna appointed to recite the Mishnah passage under discussion. This may indicate that, even if the Mishnah was reduced to writing, it was not available on general distribution. Mishnah studies Textual variants Very roughly, there are two traditions of Mishnah text. One is found in manuscripts and printed editions of the Mishnah on its own, or as part of the Jerusalem Talmud. The other is found in manuscripts and editions of the Babylonian Talmud; though there is sometimes a difference between the text of a whole paragraph printed at the beginning of a discussion (which may be edited to conform with the text of the Mishnah-only editions) and the line-by-line citations in the course of the discussion. Robert Brody, in his Mishna and Tosefta Studies (Jerusalem 2014), warns against over-simplifying the picture by assuming that the Mishnah-only tradition is always the more authentic, or that it represents a "Palestinian" as against a "Babylonian" tradition. Manuscripts from the Cairo Geniza, or citations in other works, may support either type of reading or other readings altogether. Manuscripts Complete mss. bolded. The Literature of the Jewish People in the Period of the Second Temple and the Talmud, Volume 3 The Literature of the Sages: First Part: Oral Tora, Halakha, Mishna, Tosefta, Talmud, External Tractates. Compendia Rerum Iudaicarum ad Novum Testamentum, Ed. Shmuel Safrai, Brill, 1987, Printed editions The first printed edition of the Mishnah was published in Naples. There have been many subsequent editions, including the late 19th century Vilna edition, which is the basis of the editions now used by the religious public. Vocalized editions were published in Italy, culminating in the edition of David ben Solomon Altaras, publ. Venice 1737. The Altaras edition was republished in Mantua in 1777, in Pisa in 1797 and 1810 and in Livorno in many editions from 1823 until 1936: reprints of the vocalized Livorno editions were published in Israel in 1913, 1962, 1968 and 1976. These editions show some textual variants by bracketing doubtful words and passages, though they do not attempt detailed textual criticism. The Livorno editions are the basis of the Sephardic tradition for recitation. As well as being printed on its own, the Mishnah is included in all editions of the Babylonian and Jerusalem Talmuds. Each paragraph is printed on its own, and followed by the relevant Gemara discussion. However, that discussion itself often cites the Mishnah line by line. While the text printed in paragraph form has generally been standardized to follow the Vilna edition, the text cited line by line in the Gemara often preserves important variants, which sometimes reflect the readings of older manuscripts. The nearest approach to a critical edition is that of Hanoch Albeck. There is also an edition by Yosef Qafiḥ of the Mishnah together with the commentary of Maimonides, which compares the base text used by Maimonides with the Napoli and Vilna editions and other sources. Oral traditions and pronunciation The Mishnah was and still is traditionally studied through recitation (out loud). Jewish communities around the world preserved local melodies for chanting the Mishnah, and distinctive ways of pronouncing its words. Many medieval manuscripts of the Mishnah are vowelized, and some of these, especially some fragments found in the Genizah, are partially annotated with Tiberian cantillation marks. Today, many communities have a special tune for the Mishnaic passage "Bammeh madliqin" in the Friday night service; there may also be tunes for Mishnaic passages in other parts of the liturgy, such as the passages in the daily prayers relating to sacrifices and incense and the paragraphs recited at the end of the Musaf service on Shabbat. Otherwise, there is often a customary intonation used in the study of Mishnah or Talmud, somewhat similar to an Arabic mawwal, but this is not reduced to a precise system like that for the Biblical books. (In some traditions this intonation is the same as or similar to that used for the Passover Haggadah.) Recordings have been made for Israeli national archives, and Frank Alvarez-Pereyre has published a book-length study of the Syrian tradition of Mishnah reading on the basis of these recordings. Most vowelized editions of the Mishnah today reflect standard Ashkenazic vowelization, and often contain mistakes. The Albeck edition of the Mishnah was vowelized by Hanokh Yalon, who made careful eclectic use of both medieval manuscripts and current oral traditions of pronunciation from Jewish communities all over the world. The Albeck edition includes an introduction by Yalon detailing his eclectic method. Two institutes at the Hebrew University in Jerusalem have collected major oral archives which hold extensive recordings of Jews chanting the Mishnah using a variety of melodies and many different kinds of pronunciation. These institutes are the Jewish Oral Traditions Research Center and the National Voice Archives (the Phonoteca at the Jewish National and University Library). See below for external links. Commentaries The two main commentaries on the Mishnah are the Babylonian Talmud and the Jerusalem Talmud. Neither work covers the whole Mishnah, but each work is on about 50–70% of the text. The reason that the Talmud is not usually viewed as a commentary on the Mishnah, is because it also has many other goals, and can get involved in long tangential discussions. However, the main purpose of the Talmud is as a commentary on the Mishnah. In 1168, Maimonides (Rambam) published Kitab as-Siraj (The Book of the Lantern, ) a comprehensive commentary on the Mishnah. It was written in Arabic using Hebrew letters (what is termed Judeo-Arabic) and was one of the first commentaries of its kind. In it, Rambam condensed the associated Talmudical debates, and offered his conclusions in a number of undecided issues. Of particular significance are the various introductory sections – as well as the introduction to the work itself – these are widely quoted in other works on the Mishnah, and on the Oral law in general. Perhaps the most famous is his introduction to the tenth chapter of tractate Sanhedrin where he enumerates the thirteen fundamental beliefs of Judaism. Rabbi Samson of Sens (France) was, apart from Maimonides, one of the few rabbis of the early medieval era to compose a Mishnah commentary on some tractates. It is printed in many editions of the Mishnah. It is interwoven with his commentary on major parts of the Tosefta. Asher ben Jehiel (Rosh)'s commentary on some tractates Menachem Meiri's commentary on most of the Mishnah Rabbi Obadiah ben Abraham of Bertinoro (15th century) wrote one of the most popular Mishnah commentaries. He draws on Maimonides' work but also offers Talmudical material (in effect a summary of the Talmudic discussion) largely following the commentary of Rashi. In addition to its role as a commentary on the Mishnah, this work is often referenced by students of Talmud as a review-text, and is often referred to as "the Bartenura" or "the Ra'V". Yomtov Lipman Heller wrote a commentary called Tosafot Yom Tov. In the introduction Heller says that his aim is to make additions (tosafoth) to Bertinoro’s commentary. The glosses are sometimes quite detailed and analytic. That is why it is sometimes compared to the Tosafot – discussions of Babylonian gemara by French and German scholars of the 12th–13th centuries. In many compact Mishnah printings, a condensed version of his commentary, titled Ikar Tosafot Yom Tov, is featured. An 11th-century CE commentary of the Mishnah, composed by Rabbi Nathan ben Abraham, President of the Academy in Eretz Israel. This relatively unheard-of commentary was first printed in Israel in 1955. A 12th-century Italian commentary of the Mishnah, made by Rabbi Isaac ben Melchizedek (only Seder Zera'im is known to have survived) Other Acharonim who have written Mishnah commentaries: The Melechet Shlomo (Solomon Adeni; early 17th century) Kav veNaki by R. Elisha Ben Avraham, a brief commentary on the entire Mishnah (Amsterdam 1697), reprinted 20 times since its publication Hon Ashir by Immanuel Hai Ricchi (Amsterdam 1731) The Vilna Gaon (Shenot Eliyahu on parts of the Mishnah, and glosses Eliyaho Rabba, Chidushei HaGra, Meoros HaGra) Rabbi Akiva Eiger (glosses, rather than a commentary) The Mishnah Rishonah on Zeraim and the Mishnah Acharonah on Tehorot (Rav Efrayim Yitzchok from Premishla) The Sidrei Tehorot on Kelim and Ohalot (the commentary on the rest of Tehorot and on Eduyot is lost) by Gershon Henoch Leiner, the Radziner Rebbe The Gulot Iliyot (Rav Dov Ber Lifshitz) on Mikvaot The Ahavat Eitan by Rav Avrohom Abba Krenitz (the great grandfather of Rav Malkiel Kotler) The Chazon Ish on Zeraim and Tohorot A prominent commentary from the 19th century is Tiferet Yisrael by Rabbi Israel Lipschitz. It is subdivided into two parts, one more general and the other more analytical, titled Yachin and Boaz respectively (after two large pillars in the Temple in Jerusalem). Although Rabbi Lipschutz has faced some controversy in certain Hasidic circles, he was greatly respected by such sages as Rabbi Akiva Eiger, whom he frequently cites, and is widely accepted in the Yeshiva world. The Tiferet Yaakov is an important gloss on the Tiferet Yisrael. Symcha Petrushka's commentary was written in Yiddish in 1945 (published in Montreal). Its vocalization is supposed to be of high quality. The commentary by Rabbi Pinhas Kehati, which is written in Modern Israeli Hebrew and based on classical and contemporary works, has become popular in the late 20th century. The commentary is designed to make the Mishnah accessible to a wide readership. Each tractate is introduced with an overview of its contents, including historical and legal background material, and each Mishnah is prefaced by a thematic introduction. The current version of this edition is printed with the Bartenura commentary as well as Kehati's. The encyclopedic editions put out by Mishnat Rav Aharon (Beis Medrosho Govoah, Lakewood) on Peah, Sheviit, Challah, and Yadayim. The above-mentioned edition edited by Hanokh Albeck and vocalized by Hanokh Yellin (1952–59) includes the former's extensive commentary on each Mishnah, as well as introductions to each tractate (Masekhet) and order (Seder). This commentary tends to focus on the meaning of the mishnayot themselves, without as much reliance on the Gemara's interpretation and is, therefore, considered valuable as a tool for the study of Mishnah as an independent work. Rabbi Yehuda Leib Ginsburg wrote a commentary on ethical issues, Musar HaMishnah. The commentary appears for the entire text except for Tohorot and Kodashim. Shmuel Safrai, Chana Safrai and Ze'ev Safrai have half completed a 45 volume socio-historic commentary "Mishnat Eretz Yisrael". Mishnah Sdura, a format specially designed so as to facilitate recital and memorization, produced by Rabbi E. Dordek in 1992. The layout is such that an entire chapter and its structure is readily visible, with each Mishnah, in turn, displayed in its component parts using line breaks (click on above image to view); includes tables summarizing each tractate, and the Kav veNaki commentary. As a historical source Both the Mishnah and Talmud contain little serious biographical studies of the people discussed therein, and the same tractate will conflate the points of view of many different people. Yet, sketchy biographies of the Mishnaic sages can often be constructed with historical detail from Talmudic and Midrashic sources. According to the Encyclopaedia Judaica (Second Edition), it is accepted that Judah the Prince added, deleted, and rewrote his source material during the process of redacting the Mishnah. Modern authors who have provided examples of these changes include J.N. Epstein and S. Friedman. Following Judah the Prince's redaction there remained a number of different versions of the Mishnah in circulation. The Mishnah used in the Babylonian rabbinic community differing markedly from that used in the Palestinian one. Indeed within these rabbinic communities themselves there are indications of different versions being used for study. These differences are shown in divergent citations of individual Mishnah passages in the Talmud Yerushalmi and the Talmud Bavli, and in variances of medieval manuscripts and early editions of the Mishnah. The best known examples of these differences is found in J.N.Epstein’s Introduction to the Text of the Mishnah (1948). Epstein has also concluded that the period of the Amoraim was one of further deliberate changes to the text of the Mishnah, which he views as attempts to return the text to what was regarded as its original form. These lessened over time, as the text of the Mishnah became more and more regarded as authoritative. Many modern historical scholars have focused on the timing and the formation of the Mishnah. A vital question is whether it is composed of sources which date from its editor's lifetime, and to what extent is it composed of earlier, or later sources. Are Mishnaic disputes distinguishable along theological or communal lines, and in what ways do different sections derive from different schools of thought within early Judaism? Can these early sources be identified, and if so, how? In response to these questions, modern scholars have adopted a number of different approaches. Some scholars hold that there has been extensive editorial reshaping of the stories and statements within the Mishnah (and later, in the Talmud.) Lacking outside confirming texts, they hold that we cannot confirm the origin or date of most statements and laws, and that we can say little for certain about their authorship. In this view, the questions above are impossible to answer. See, for example, the works of Louis Jacobs, Baruch M. Bokser, Shaye J. D. Cohen, Steven D. Fraade. Some scholars hold that the Mishnah and Talmud have been extensively shaped by later editorial redaction, but that it contains sources which we can identify and describe with some level of reliability. In this view, sources can be identified to some extent because each era of history and each distinct geographical region has its own unique feature, which one can trace and analyze. Thus, the questions above may be analyzed. See, for example, the works of Goodblatt, Lee Levine, David C. Kraemer and Robert Goldenberg. Some scholars hold that many or most of the statements and events described in the Mishnah and Talmud usually occurred more or less as described, and that they can be used as serious sources of historical study. In this view, historians do their best to tease out later editorial additions (itself a very difficult task) and skeptically view accounts of miracles, leaving behind a reliable historical text. See, for example, the works of Saul Lieberman, David Weiss Halivni, Avraham Goldberg and Dov Zlotnick. Cultural references A notable literary work on the composition of the Mishnah is Milton Steinberg's novel As a Driven Leaf. See also Baraita Jewish commentaries on the Bible List of tractates, chapters, mishnahs and pages in the Talmud Mishnah Yomisdaily cycle of Mishna studying Mishneh Torah Tosefta Notes References English translations Philip Blackman. Mishnayoth. The Judaica Press, Ltd., reprinted 2000 (). Online PDF at HebrewBooks: Zeraim, Moed, Nashim, Nezikin, Kodashim, Tehorot. Herbert Danby. The Mishnah. Oxford, 1933 (). Jacob Neusner. The Mishnah: A New Translation. New Haven, reprint 1991 (). Various editors. The Mishnah, a new translation with commentary Yad Avraham. New York: Mesorah publishers, since the 1980s. [Yoseph Milstein + Various editors.] The Mishnah, a new integrated translation and commentary based on Rabbeinu Ovadiah M'Bartenurah, Machon Yisrael Trust, available online at eMishnah.com. The Sefaria website contains the full text of the Mishnah with various open-source English translations. Historical study Shalom Carmy (Ed.) Modern Scholarship in the Study of Torah: Contributions and Limitations Jason Aronson, Inc. Shaye J.D. Cohen, "Patriarchs and Scholarchs", Proceedings of the American Academy for Jewish Research 48 (1981), pp. 57–87 Steven D. Fraade, "The Early Rabbinic Sage," in The Sage in Israel and the Ancient Near East, ed. John G. Gammie and Leo G. Perdue (Winona Lake, Indiana: Eisenbrauns, 1990), pp. 417–23 Robert Goldenberg The Sabbath-Law of Rabbi Meir (Missoula, Montana: Scholars Press, 1978) John W McGinley 'The Written' as the Vocation of Conceiving Jewishly Jacob Neusner Making the Classics in Judaism (Atlanta: Scholars Press, 1989), pp. 1–13 and 19–44 Jacob Neusner Judaism: The Evidence of the Mishnah (Chicago: University of Chicago Press, 1981), pp. 14–22. Gary Porton, The Traditions of Rabbi Ishmael (Leiden: E.J. Brill, 1982), vol. 4, pp. 212–25 Dov Zlotnick, The Iron Pillar Mishnah (Jerusalem: Bialik Institute, 1988), pp. 8–9 Reuvain Margolies, Yesod Ha-Mishnah V'Arichatah (Heb.) David Tzvi Hoffman, Mishnah Rishonah U'flugta D'tanna'e (Heb) Hanokh Yalon, Mavo le-nikud ha-Mishnah [Introduction to the vocalization of the Mishnah] (Jerusalem 1964) (Heb) Robert Brody, Mishna and Tosefta Studies (Jerusalem 2014) Recitation Frank Alvarez-Pereyre, La Transmission Orale de la Mishna. Une methode d'analyse appliquee a la tradition d'Alep: Jerusalem 1990 External links Wikimedia projects Wikisource's Open Mishna Project is developing Mishnah texts, commentaries, and translations. The project is currently available in four languages: Hebrew (the largest collection), English, French and Portuguese. Digitised manuscripts Complete Mishnah manuscript (15th century CE), Cambridge Digital Library Other electronic texts Learn Mishna in Someone's Memory – Create a Shloshim Mishnah list online. Mechon Mamre (Hebrew) – Hebrew text of the Mishnah according to Maimonides' version (based on the manuscript of his Mishnah commentary in his own handwriting). The Structured Mishnah – Hebrew text according to the Albeck edition (without vowels) with special formatting. Online Treasury of Talmudic Manuscripts, Jewish National and University Library in Hebrew. Codex Kaufmann of the Mishnah – High resolution images of this important textual witness. eMishnah – English Translation & Commentary. Mishnah study and the daily Mishnah – One Mishnah per day. (Note: this study-cycle follows a different schedule than the regular one; contains extensive archives in English). Mishnah Yomit – MishnahYomit.com hosts a weekly publication complementing the learning of people studying the regular program. It include articles, review questions and learning aids. – A program of two Mishnayot per day. Currently inactive, but archives contain the complete text of Kehati in English for Moed, Nashim, Nezikin, and about half of Kodashim. – Custom learning and review programs for Mishnah. MishnaSdura – Popular edition of Hebrew text (with vowels), used in many schools, formatted to encourage review and aid memory. Tables summarizing content. Mishna songs and recordings. Wiki article in Hebrew Mishna Sdura Perek HaYomi (Hebrew) – Host to Shiurim, and learning and review according to the Perek HaYomi in Mishna instituted by the Maharal. 2 Mishnas A Day – A program of learning two mishnayos every day. Site include Hebrew and English together with a link for audio for each day. Audio lectures Rav Avraham Kosman – Slabodka on the Mishnah and Talmud in English – Produced in Israel Mishna Audio – given by Rabbi Chaim Brown in English Rav Grossman on the Mishna in English produced in Los Angeles Download all 6 tractates of Mishnah for Free on TorahDownloads.com Oral traditions and pronunciation The National Sound Archives at the Hebrew University (catalogue not currently online). Tradition and Relevance – Recordings of Seder Zera'im in Syrian tradition 3rd-century texts Hebrew words and phrases in Jewish law Hebrew words and phrases Hebrew-language literature Jewish texts in Aramaic Jewish texts

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https://en.wikipedia.org/wiki/Marathon%20%28disambiguation%29

Marathon (disambiguation)

A marathon is a foot race for humans for a distance of . Marathon also may refer to: Places Australia Marathon, Queensland Canada Marathon, Ontario Greece Marathon, Greece, after which the distance race was named Battle of Marathon Lake Marathon, 8 km west of the town Marathon Dam, forming the lake United States Marathon, Florida Marathon, Iowa Marathon Township, Michigan Marathon (town), New York Marathon (village), New York Marathon, Ohio Marathon, Texas Marathon, Wisconsin, town Marathon County, Wisconsin Marathon City, Wisconsin Sports Mini marathon Half marathon Ultramarathon Marathon dancing Marathon swimming Ski marathon Ice skating marathon Club Deportivo Marathón, a Honduran soccer club The Marathon (horse race), a horse race in the United States Businesses Marathon Enterprises, Inc., maker of Sabrett hot dogs Marathon Motor Works, producers of the Marathon automobile Marathon (automobile), vehicles manufactured by Marathon 1911–1914 Marathon Oil, a US-based oil and natural gas exploration and production company Marathon Petroleum, a US-based oil refining, marketing, and pipeline transport company. Marathon Sports, an Ecuadorian-based athletic company that distributes athletic equipment to sports teams Automobiles Marathon, a French manufacturer of Panhard powered light sports cars in the 1950s Marathon Automated Test Systems, a system for automated testing of printed circuit boards from Computer Automation Candy Marathon candy bar, a Mars' rival to Curly Wurly in the US from 1973 to 1982 Snickers candy bar, marketed under the name "Marathon" in the United Kingdom and Ireland until 1990 Entertainment Film and television Marathon Production, a TV program production and distribution company The Marathon (film), a 1919 film starring Harold Lloyd Maratón (film), a 1968 Czechoslovak war film directed by Ivo Novák Marathon (1980 film), a film starring Dick Gautier. Marathon (1988 film), a sport-drama film directed by Terence Young Marathon (1992 film), a Spanish film about the Barcelona Olympics directed by Carlos Saura Marathon (2005 film), a South Korean film about an autistic marathon runner Marathon (media), the sequential broadcast of a number of related media programs Marathon Media a French production company and animation studio in Paris Movie marathon, viewing of multiple consecutive movies "Marathon" (Law & Order), an episode of Law & Order "Marathon" (The Flash), an episode of The Flash Video games Marathon Trilogy, a video game series for the Macintosh developed and produced by Bungie in the mid-1990s Marathon (video game), the first in the trilogy (1994) Marathon 2: Durandal, the second in the trilogy (1995) Marathon Infinity, the third in the trilogy (1996) Music Dance Marathon, a type of multi-day charity event, popular in the US in the 1920s and 1930s Maratone Studios, a music production company based in Sweden The Vibrations, an R&B group whose alter ego was "The Marathons" Albums The Marathon (mixtape), by American rapper Nispey Hussle Marathon (Saga album) Marathon (Santana album), by Carlos Santana Maraton (album), by Swedish singer Alina Devecerski Songs "Marathon" (Rush song), from the album Power Windows "Marathon", by Tennis from the album Cape Dory "Marathon", by Kayo Dot from the album Choirs of the Eye "Marathon", by Dilated Peoples from the album Neighborhood Watch , on the 2013 album Farbenspiel Vehicles Checker Marathon, an automobile model from Checker Motors Company Aircraft: Handley Page Marathon, British four-engined light transport Heldeberg Marathon, American design for powered parachute Mirage Marathon, American home-built aircraft design Other uses A typeface created by Rudolf Koch A container orchestration system that is part of Apache Mesos See also Maraton (disambiguation) Marathon Man (disambiguation) sr:Маратон

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https://en.wikipedia.org/wiki/Monotheism

Monotheism

Monotheism is the belief that there is only one god. A distinction may be made between exclusive monotheism, in which the one god is a singular existence, and both inclusive and pluriform monotheism, in which multiple gods or godly forms are recognized, but each are postulated as extensions of the same god. Monotheism is distinguished from henotheism, a religious system in which the believer worships one god without denying that others may worship different gods with equal validity, and monolatrism, the recognition of the existence of many gods but with the consistent worship of only one deity. The term monolatry was perhaps first used by Julius Wellhausen. Monotheism characterizes the traditions of Bábism, the Baháʼí Faith, Cheondoism (Cheondogyo), Christianity, Deism, Druze faith, Eckankar, Sikhism, Hindu sects such as Shaivism and Vaishnavism, Islam, Judaism, Mandaeism, Rastafari, Seicho no Ie, Tenrikyo (Tenriism), Yazidism, and Zoroastrianism. Elements of monotheistic thought are found in early religions such as Atenism, ancient Chinese religion, and Yahwism. Etymology The word monotheism comes from the Greek (monos) meaning "single" and (theos) meaning "god". The English term was first used by Henry More (1614–1687). History Quasi-monotheistic claims of the existence of a universal deity date to the Late Bronze Age, with Akhenaten's Great Hymn to the Aten from the 14th century BC. In the Iron-Age South Asian Vedic period, a possible inclination towards monotheism emerged. The Rigveda exhibits notions of monism of the Brahman, particularly in the comparatively late tenth book, which is dated to the early Iron Age, e.g. in the Nasadiya Sukta. Later, ancient Hindu theology was monist, but was not strictly monotheistic in worship because it still maintained the existence of many gods, who were envisioned as aspects of one supreme God, Brahman. In China, the orthodox faith system held by most dynasties since at least the Shang Dynasty (1766 BCE) until the modern period centered on the worship of Shangdi (literally "Above Sovereign", generally translated as "God") or Heaven as an omnipotent force. However, this faith system was not truly monotheistic since other lesser gods and spirits, which varied with locality, were also worshiped along with Shangdi. Still, later variants such as Mohism (470 BCE–c.391 BCE) approached true monotheism, teaching that the function of lesser gods and ancestral spirits is merely to carry out the will of Shangdi, akin to the angels in Abrahamic religions which in turn counts as only one god. Since the sixth century BCE, Zoroastrians have believed in the supremacy of one God above all: Ahura Mazda as the "Maker of All" and the first being before all others. Zoroastrianism is not strictly monotheistic as it has a dualistic cosmology with Ahura Mazda, the force of good, engaged in a constant struggle with Angra Mainyu, the force of evil, although good will ultimately overcome evil. Post-exilic Judaism, after the late 6th century BC, was the first religion to conceive the notion of a personal monotheistic God within a monist context. The concept of ethical monotheism, which holds that morality stems from God alone and that its laws are unchanging, first occurred in Judaism, but is now a core tenet of most modern monotheistic religions, including Zoroastrianism, Christianity, Islam, Sikhism, and Baháʼí Faith. Also from the 6th century BC, Thales (followed by other Monists, such as Anaximander, Anaximenes, Heraclitus, Parmenides) proposed that nature can be explained by reference to a single unitary principle that pervades everything. Numerous ancient Greek philosophers, including Xenophanes of Colophon and Antisthenes believed in a similar polytheistic monism that bore some similarities to monotheism. The first known reference to a unitary God is Plato's Demiurge (divine Craftsman), followed by Aristotle's unmoved mover, both of which would profoundly influence Jewish and Christian theology. According to Jewish, Christian and Islamic tradition, monotheism was the original religion of humanity; this original religion is sometimes referred to as "the Adamic religion", or, in the terms of Andrew Lang, the "Urreligion". Scholars of religion largely abandoned that view in the 19th century in favour of an evolutionary progression from animism via polytheism to monotheism, but by 1974, this theory was less widely held, and a modified view similar to Lang's became more prominent. Austrian anthropologist Wilhelm Schmidt had postulated an Urmonotheismus, "original" or "primitive monotheism" in the 1910s. It was objected that Judaism, Christianity, and Islam had grown up in opposition to polytheism as had Greek philosophical monotheism. More recently, Karen Armstrong and other authors have returned to the idea of an evolutionary progression beginning with animism, which developed into polytheism, which developed into henotheism, which developed into monolatry, which developed into true monotheism. Abrahamic religions Judaism Judaism is traditionally considered one of the oldest monotheistic religions in the world, although it is believed that the earliest Israelites (pre-7th century BCE) were polytheistic, who evolved into henotheistic and later monolatristic, rather than monotheistic. God in Second Temple Judaism later Rabbinic Judaism was strictly monotheistic, an absolute one, indivisible, and incomparable being who is the ultimate cause of all existence. The Babylonian Talmud references other, "foreign gods" as non-existent entities to whom humans mistakenly ascribe reality and power. One of the best-known statements of Rabbinic Judaism on monotheism is the Second of Maimonides' 13 Principles of faith: Some in Judaism and Islam reject the Christian idea of monotheism. Judaism uses the term shituf to refer to the worship of God in a manner which Judaism deems to be neither purely monotheistic (though still permissible for non-Jews) nor polytheistic (which would be prohibited). In Ancient Israel During the 8th century BCE, the worship of Yahweh in Israel was in competition with many other cults, described by the Yahwist faction collectively as Baals. The oldest books of the Hebrew Bible reflect this competition, as in the books of Hosea and Nahum, whose authors lament the "apostasy" of the people of Israel, threatening them with the wrath of God if they do not give up their polytheistic cults. Ancient Israelite religion was originally polytheistic; the Israelites worshipped many deities, including El, Baal, Asherah, and Astarte. Yahweh was originally the national god of the Kingdom of Israel and the Kingdom of Judah. As time progressed, the henotheistic cult of Yahweh grew increasingly militant in its opposition to the worship of other gods. Later, the reforms of King Josiah imposed a form of strict monolatrism. After the fall of Judah and the beginning of the Babylonian captivity, a small circle of priests and scribes gathered around the exiled royal court, where they first developed the concept of Yahweh as the sole God of the world. The Shema Shema Yisrael ("Hear, [O] Israel") are the first two words of a section of the Torah, and is the title of a prayer that serves as a centerpiece of the morning and evening Jewish prayer services. The first verse encapsulates the monotheistic essence of Judaism: "Hear, O Israel: the our God, the is one" (), found in Deuteronomy 6, sometimes alternatively translated as "The is our God, the alone". Observant Jews consider the Shema to be the most important part of the prayer service in Judaism, and its twice-daily recitation as a mitzvah (religious commandment). It is traditional for Jews to say the Shema as their last words, and for parents to teach their children to say it before they go to sleep at night. Christianity Among early Christians, there was considerable debate over the nature of the Godhead, with some denying the incarnation but not the deity of Jesus (Docetism) and others later calling for an Arian conception of God. Despite at least one earlier local synod rejecting the claim of Arius, this Christological issue was to be one of the items addressed at the First Council of Nicaea. The First Council of Nicaea, held in Nicaea (in present-day Turkey), convoked by the Roman Emperor Constantine I in 325, was the first ecumenical council of bishops of the Roman Empire, and most significantly resulted in the first uniform Christian doctrine, called the Nicene Creed. With the creation of the creed, a precedent was established for subsequent general ecumenical councils of bishops (synods) to create statements of belief and canons of doctrinal orthodoxy— the intent being to define a common creed for the Church and address heretical ideas. One purpose of the council was to resolve disagreements in Alexandria over the nature of Jesus in relationship to the Father; in particular, whether Jesus was of the same substance as God the Father or merely of similar substance. All but two bishops took the first position; while Arius' argument failed. Christian orthodox traditions (Eastern Orthodox, Oriental Orthodox, Roman Catholic, and most Protestants) follow this decision, which was reaffirmed in 381 at the First Council of Constantinople and reached its full development through the work of the Cappadocian Fathers. They consider God to be a triune entity, called the Trinity, comprising three "persons", God the Father, God the Son, and God the Holy Spirit. These three are described as being "of the same substance" (). Christians overwhelmingly assert that monotheism is central to the Christian faith, as the Nicene Creed (and others), which gives the orthodox Christian definition of the Trinity, begins: "I believe in one God". From earlier than the times of the Nicene Creed, 325 CE, various Christian figures advocated the triune mystery-nature of God as a normative profession of faith. According to Roger E. Olson and Christopher Hall, through prayer, meditation, study and practice, the Christian community concluded "that God must exist as both a unity and trinity", codifying this in ecumenical council at the end of the 4th century. Most modern Christians believe the Godhead is triune, meaning that the three persons of the Trinity are in one union in which each person is also wholly God. They also hold to the doctrine of a man-god Christ Jesus as God incarnate. These Christians also do not believe that one of the three divine figures is God alone and the other two are not but that all three are mysteriously God and one. Other Christian religions, including Unitarian Universalism, Jehovah's Witnesses, Mormonism and others, do not share those views on the Trinity. Some Christian faiths, such as Mormonism, argue that the Godhead is in fact three separate individuals which include God the Father, His Son Jesus Christ, and the Holy Ghost. Each individual having a distinct purpose in the grand existence of human kind. Furthermore, Mormons believe that before the Council of Nicaea, the predominant belief among many early Christians was that the Godhead was three separate individuals. In support of this view, they cite early Christian examples of belief in subordinationism. Unitarianism is a theological movement, named for its understanding of God as one person, in direct contrast to Trinitarianism. some in Judaism and some in Islam do not consider Trinitarian Christianity to be a pure form of monotheism due to the pluriform monotheistic Christian doctrine of the Trinity, classifying it as shituf in Judaism and as shirk in Islam. Trinitarian Christians, on the other hand, argue that the doctrine of the Trinity is a valid expression of monotheism, citing that the Trinity does not consist of three separate deities, but rather the three persons, who exist consubstantially (as one substance) within a single Godhead. Islam In Islam, God (Allāh) is all-powerful and all-knowing, the Creator, Sustainer, Ordainer and Judge of the universe. God in Islam is strictly singular (tawhid) unique (wahid) and inherently One (ahad), all-merciful and omnipotent. Allāh exists on the Al-'Arsh [Quran 7:54], but the Quran states that "No vision can grasp Him, but His grasp is over all vision. God is above all comprehension, yet is acquainted with all things" [Quran 6:103] Allāh is the only God and the same God worshiped in Christianity and Judaism.(). Islam emerged in the 7th century CE in the context of both Christianity and Judaism, with some thematic elements similar to Gnosticism. Islamic belief states that Muhammad did not bring a new religion from God, but rather the same religion as practiced by Abraham, Moses, David, Jesus and all the other prophets of God. The assertion of Islam is that the message of God had been corrupted, distorted or lost over time, and the Quran was sent to Muhammad in order to correct the lost message of the Tawrat (Torah), Injil (Gospel) and Zabur. The Quran asserts the existence of a single and absolute truth that transcends the world; a unique and indivisible being who is independent of the creation. The Quran rejects binary modes of thinking such as the idea of a duality of God by arguing that both good and evil generate from God's creative act. God is a universal god rather than a local, tribal or parochial one; an absolute who integrates all affirmative values and brooks no evil. Ash'ari theology, which dominated Sunni Islam from the tenth to the nineteenth century, insists on ultimate divine transcendence and holds that divine unity is not accessible to human reason. Ash'arism teaches that human knowledge regarding it is limited to what has been revealed through the prophets, and on such paradoxes as God's creation of evil, revelation had to accept bila kayfa (without [asking] how). Tawhid constitutes the foremost article of the Muslim profession of faith, "There is no god but God, Muhammad is the messenger of God. To attribute divinity to a created entity is the only unpardonable sin mentioned in the Quran. The entirety of the Islamic teaching rests on the principle of tawhid. Medieval Islamic philosopher Al-Ghazali offered a proof of monotheism from omnipotence, asserting there can only be one omnipotent being. For if there were two omnipotent beings, the first would either have power over the second (meaning the second is not omnipotent) or not (meaning the first is not omnipotent); thus implying that there could only be one omnipotent being. As they traditionally profess a concept of monotheism with a singular entity as God, Judaism and Islam reject the Christian idea of monotheism. Judaism uses the term Shituf to refer to non-monotheistic ways of worshiping God. Although Muslims venerate Jesus (Isa in Arabic) as a prophet, they do not accept the doctrine that he was a begotten son of God. Mandaeism Mandaeism or Mandaeanism ( ), also known as Sabianism (, ), is a monotheistic, Gnostic, and ethnic religion. Its adherents, the Mandaeans, revere Adam, Abel, Seth, Enos, Noah, Shem, Aram, and especially John the Baptist. The Mandaeans believe in one God commonly named Hayyi Rabbi meaning 'The Great Life' or 'The Great Living God'. The Mandaeans are Semites and speak a dialect of Eastern Aramaic known as Mandaic. The name 'Mandaean' comes from the Aramaic manda meaning "knowledge", as does Greek gnosis. Within the Middle East, but outside of their community, the Mandaeans are more commonly known as the (singular: ) or Sabians. The term is derived from the Aramaic root related to baptism, the neo-Mandaic is . In Islam, the Sabians ( ) are described several times in the Quran as People of the Book, alongside Jews and Christians. Mandaeans recognize God to be the eternal, creator of all, the one and only in domination who has no partner. Baháʼí Faith God in the Baháʼí Faith is taught to be the Imperishable, uncreated Being Who is the source of existence, too great for humans to fully comprehend. Human primitive understanding of God is achieved through his revelations via his divine intermediary Manifestations. In the Baháʼí faith, such Christian doctrines as the Trinity are seen as compromising the Baháʼí view that God is single and has no equal, and the very existence of the Baháʼí Faith is a challenge to the Islamic doctrine of the finality of Muhammad's revelation. God in the Baháʼí Faith communicates to humanity through divine intermediaries, known as Manifestations of God. These Manifestations establish religion in the world. It is through these divine intermediaries that humans can approach God, and through them God brings divine revelation and law. The Oneness of God is one of the core teachings of the Baháʼí Faith. The obligatory prayers in the Baháʼí Faith involve explicit monotheistic testimony. God is the imperishable, uncreated being who is the source of all existence. He is described as "a personal God, unknowable, inaccessible, the source of all Revelation, eternal, omniscient, omnipresent and almighty". Although transcendent and inaccessible directly, his image is reflected in his creation. The purpose of creation is for the created to have the capacity to know and love its creator. God communicates his will and purpose to humanity through intermediaries, known as Manifestations of God, who are the prophets and messengers that have founded religions from prehistoric times up to the present day. Rastafari Rastafari, sometimes termed Rastafarianism, is classified as both a new religious movement and social movement. It developed in Jamaica during the 1930s. It lacks any centralised authority and there is much heterogeneity among practitioners, who are known as Rastafari, Rastafarians, or Rastas. Rastafari refer to their beliefs, which are based on a specific interpretation of the Bible, as "Rastalogy". Central is a monotheistic belief in a single God—referred to as Jah—who partially resides within each individual. The former emperor of Ethiopia, Haile Selassie, is given central importance. Many Rastas regard him as an incarnation of Jah on Earth and as the Second Coming of Christ. Others regard him as a human prophet who fully recognised the inner divinity within every individual. Atenism Amenhotep IV initially introduced Atenism in Year 5 of his reign (1348/1346 BCE) during the 18th dynasty of the New Kingdom. He raised Aten, once a relatively obscure Egyptian solar deity representing the disk of the sun, to the status of Supreme God in the Egyptian pantheon. To emphasise the change, Aten's name was written in the cartouche form normally reserved for Pharaohs, an innovation of Atenism. This religious reformation appears to coincide with the proclamation of a Sed festival, a sort of royal jubilee intended to reinforce the Pharaoh's divine powers of kingship. Traditionally held in the thirtieth year of the Pharaoh's reign, this possibly was a festival in honour of Amenhotep III, who some Egyptologists think had a coregency with his son Amenhotep IV of two to twelve years. Year 5 is believed to mark the beginning of Amenhotep IV's construction of a new capital, Akhetaten (Horizon of the Aten), at the site known today as Amarna. Evidence of this appears on three of the boundary stelae used to mark the boundaries of this new capital. At this time, Amenhotep IV officially changed his name to Akhenaten (Agreeable to Aten) as evidence of his new worship. The date given for the event has been estimated to fall around January 2 of that year. In Year 7 of his reign (1346/1344 BCE), the capital was moved from Thebes to Akhetaten (near modern Amarna), though construction of the city seems to have continued for two more years. In shifting his court from the traditional ceremonial centres Akhenaten was signalling a dramatic transformation in the focus of religious and political power. The move separated the Pharaoh and his court from the influence of the priesthood and from the traditional centres of worship, but his decree had deeper religious significance too—taken in conjunction with his name change, it is possible that the move to Amarna was also meant as a signal of Akhenaten's symbolic death and rebirth. It may also have coincided with the death of his father and the end of the coregency. In addition to constructing a new capital in honor of Aten, Akhenaten also oversaw the construction of some of the most massive temple complexes in ancient Egypt, including one at Karnak and one at Thebes, close to the old temple of Amun. In Year 9 (1344/1342 BCE), Akhenaten declared a more radical version of his new religion, declaring Aten not merely the supreme god of the Egyptian pantheon, but the only God of Egypt, with himself as the sole intermediary between the Aten and the Egyptian people. Key features of Atenism included a ban on idols and other images of the Aten, with the exception of a rayed solar disc, in which the rays (commonly depicted ending in hands) appear to represent the unseen spirit of Aten. Akhenaten made it however clear that the image of the Aten only represented the god, but that the god transcended creation and so could not be fully understood or represented. Aten was addressed by Akhenaten in prayers, such as the Great Hymn to the Aten: "O Sole God beside whom there is none". The details of Atenist theology are still unclear. The exclusion of all but one god and the prohibition of idols was a radical departure from Egyptian tradition, but scholars see Akhenaten as a practitioner of monolatry rather than monotheism, as he did not actively deny the existence of other gods; he simply refrained from worshiping any but Aten. Akhenaten associated Aten with Ra and put forward the eminence of Aten as the renewal of the kingship of Ra. Under Akhenaten's successors, Egypt reverted to its traditional religion, and Akhenaten himself came to be reviled as a heretic. Aboriginal Australian Religions Aboriginal Australians are typically described as polytheistic in nature. Although some researchers shy from referring to Dreamtime figures as "gods" or "deities", they are broadly described as such for the sake of simplicity. In Southeastern Australian cultures, the sky father Baiame is perceived as the creator of the universe (though this role is sometimes taken by other gods like Yhi or Bunjil) and at least among the Gamilaraay traditionally revered above other mythical figures. Equation between him and the Christian god is common among both missionaries and modern Christian Aboriginals. The Yolngu had extensive contact with the Makassans and adopted religious practises inspired by those of Islam. The god Walitha'walitha is based on Allah (specifically, with the wa-Ta'ala suffix), but while this deity had a role in funerary practises it is unclear if it was "Allah-like" in terms of functions. Andaman Islands The religion of the Andamanese peoples has at times been described as "animistic monotheism", believing foremost in a single deity, Paluga, who created the universe. However, Paluga is not worshipped, and anthropomorphic personifications of natural phenomena are also known. Chinese religions The orthodox faith system held by most dynasties of China since at least the Shang Dynasty (1766 BCE) until the modern period centered on the worship of Shangdi (literally "Above Sovereign", generally translated as "High-god") or Heaven as an supreme being, standing above other gods. This faith system pre-dated the development of Confucianism and Taoism and the introduction of Buddhism and Christianity. It has some features of monotheism in that Heaven is seen as an omnipotent entity, a noncorporeal force with a personality transcending the world. However, this faith system was not truly monotheistic since other lesser gods and spirits, which varied with locality, were also worshiped along with Shangdi. Still, later variants such as Mohism (470 BCE–c.391 BCE) approached true monotheism, teaching that the function of lesser gods and ancestral spirits is merely to carry out the will of Shangdi. In Mozi's Will of Heaven (天志), he writes: Worship of Shangdi and Heaven in ancient China includes the erection of shrines, the last and greatest being the Temple of Heaven in Beijing, and the offering of prayers. The ruler of China in every Chinese dynasty would perform annual sacrificial rituals to Shangdi, usually by slaughtering a completely healthy bull as sacrifice. Although its popularity gradually diminished after the advent of Taoism and Buddhism, among other religions, its concepts remained in use throughout the pre-modern period and have been incorporated in later religions in China, including terminology used by early Christians in China. Despite the rising of non-theistic and pantheistic spirituality contributed by Taoism and Buddhism, Shangdi was still praised up until the end of the Qing Dynasty as the last ruler of the Qing declared himself son of heaven. Indigenous African religions The Himba people of Namibia practice a form of monotheistic panentheism, and worship the god Mukuru. The deceased ancestors of the Himba and Herero are subservient to him, acting as intermediaries. The Igbo people practice a form of monotheism called Odinani. Odinani has monotheistic and panentheistic attributes, having a single God as the source of all things. Although a pantheon of spirits exists, these are lesser spirits prevalent in Odinani expressly serving as elements of Chineke (or Chukwu), the supreme being or high god. Waaq is the name of a singular God in the traditional religion of many Cushitic people in the Horn of Africa, denoting an early monotheistic religion. However this religion was mostly replaced with the Abrahamic religions. Some (approximately 3%) of Oromo still follow this traditional monotheistic religion called Waaqeffannaa in Oromo. Indo-European religions Proto-Indo-European religion The head deity of the Proto-Indo-European religion was the god *Dyḗus Pḥatḗr . A number of words derived from the name of this prominent deity are used in various Indo-European languages to denote a monotheistic God. Nonetheless, in spite of this, Proto-Indo-European religion itself was not monotheistic. In Eastern Europe, the ancient traditions of the Slavic religion contained elements of monotheism. In the sixth century AD, the Byzantine chronicler Procopius recorded that the Slavs "acknowledge that one god, creator of lightning, is the only lord of all: to him do they sacrifice an ox and all sacrificial animals." The deity to whom Procopius is referring is the storm god Perún, whose name is derived from *Perkwunos, the Proto-Indo-European god of lightning. The ancient Slavs syncretized him with the Germanic god Thor and the Biblical prophet Elijah. Indo-Iranian religions Hinduism As an old religion, Hinduism inherits religious concepts spanning monotheism, polytheism, panentheism, pantheism, monism, and atheism among others; and its concept of God is complex and depends upon each individual and the tradition and philosophy followed. Hindu views are broad and range from monism, through pantheism and panentheism (alternatively called monistic theism by some scholars) to monotheism and even atheism. Hinduism cannot be said to be purely polytheistic. Hindu religious leaders have repeatedly stressed that while God's forms are many and the ways to communicate with him are many, God is one. The puja of the murti is a way to communicate with the abstract one god (Brahman) which creates, sustains and dissolves creation. Rig Veda 1.164.46, "They call him Indra, Mitra, Varuṇa, Agni, and he is heavenly nobly-winged Garuda. To what is One, sages give many a title they call it Agni, Yama, Mātariśvan." (trans. Griffith) Traditions of Gaudiya Vaishnavas, the Nimbarka Sampradaya and followers of Swaminarayan and Vallabha consider Krishna to be the source of all avatars, and the source of Vishnu himself, or to be the same as Narayana. As such, he is therefore regarded as Svayam Bhagavan. When Krishna is recognized to be Svayam Bhagavan, it can be understood that this is the belief of Gaudiya Vaishnavism, the Vallabha Sampradaya, and the Nimbarka Sampradaya, where Krishna is accepted to be the source of all other avatars, and the source of Vishnu himself. This belief is drawn primarily "from the famous statement of the Bhagavatam" (1.3.28). A viewpoint differing from this theological concept is the concept of Krishna as an avatar of Narayana or Vishnu. It should be however noted that although it is usual to speak of Vishnu as the source of the avataras, this is only one of the names of the God of Vaishnavism, who is also known as Narayana, Vasudeva and Krishna and behind each of those names there is a divine figure with attributed supremacy in Vaishnavism. The Rig Veda discusses monotheistic thought, as do the Atharva Veda and Yajur Veda: "Devas are always looking to the supreme abode of Vishnu" (tad viṣṇoḥ paramaṁ padaṁ sadā paśyanti sṻrayaḥ Rig Veda 1.22.20) "The One Truth, sages know by many names" (Rig Veda 1.164.46) "When at first the unborn sprung into being, He won His own dominion beyond which nothing higher has been in existence" (Atharva Veda 10.7.31) "There is none to compare with Him. There is no parallel to Him, whose glory, verily, is great." (Yajur Veda 32.3) The number of auspicious qualities of God are countless, with the following six qualities (bhaga) being the most important: Jñāna (omniscience), defined as the power to know about all beings simultaneously Aishvarya (sovereignty, derived from the word Ishvara), which consists in unchallenged rule over all Shakti (energy), or power, which is the capacity to make the impossible possible Bala (strength), which is the capacity to support everything by will and without any fatigue Vīrya (vigor), which indicates the power to retain immateriality as the supreme being in spite of being the material cause of mutable creations Tejas (splendor), which expresses His self-sufficiency and the capacity to overpower everything by His spiritual effulgence In the Shaivite tradition, the Shri Rudram (Sanskrit श्रि रुद्रम्), to which the Chamakam (चमकम्) is added by scriptural tradition, is a Hindu stotra dedicated to Rudra (an epithet of Shiva), taken from the Yajurveda (TS 4.5, 4.7). Shri Rudram is also known as Sri Rudraprasna, , and Rudradhyaya. The text is important in Vedanta where Shiva is equated to the Universal supreme God. The hymn is an early example of enumerating the names of a deity, a tradition developed extensively in the sahasranama literature of Hinduism. The Nyaya school of Hinduism has made several arguments regarding a monotheistic view. The Naiyanikas have given an argument that such a god can only be one. In the Nyaya Kusumanjali, this is discussed against the proposition of the Mimamsa school that let us assume there were many demigods (devas) and sages (rishis) in the beginning, who wrote the Vedas and created the world. Nyaya says that: [If they assume such] omniscient beings, those endowed with the various superhuman faculties of assuming infinitesimal size, and so on, and capable of creating everything, then we reply that the law of parsimony bids us assume only one such, namely Him, the adorable Lord. There can be no confidence in a non-eternal and non-omniscient being, and hence it follows that according to the system which rejects God, the tradition of the Veda is simultaneously overthrown; there is no other way open. In other words, Nyaya says that the polytheist would have to give elaborate proofs for the existence and origin of his several celestial spirits, none of which would be logical, and that it is more logical to assume one eternal, omniscient god. Zoroastrianism Zoroastrianism combines cosmogonic dualism and eschatological monotheism which makes it unique among the religions of the world. Zoroastrianism proclaims an evolution through time from dualism to monotheism. Zoroastrianism is a monotheistic religion, although Zoroastrianism is often regarded as dualistic, duotheistic or bitheistic, for its belief in the hypostasis of the ultimately good Ahura Mazda (creative spirit) and the ultimately evil Angra Mainyu (destructive spirit). Zoroastrianism was once one of the largest religions on Earth, as the official religion of the Persian Empire. By some scholars, the Zoroastrians ("Parsis" or "Zartoshtis") are credited with being some of the first monotheists and having had influence on other world religions. Gathered statistics estimates the number of adherents at between 100,000 and 200,000, with adherents living in many regions, including South Asia. Sikhism Sikhi is a monotheistic and a revealed religion. God in Sikhi is called Akal Purakh (which means "the true immortal") or Vāhigurū the Primal being. However, other names like Ram, Allah etc. are also used to refer to the same god, who is shapeless, timeless, and sightless: niraṅkār, akaal, and alakh. Sikhi presents a unique perspective where God is present (sarav viāpak) in all of its creation and does not exist outside of its creation. God must be seen from "the inward eye", or the "heart". Sikhs follow the Aad Guru Granth Sahib and are instructed to meditate on the Naam (Name of God - Vāhigurū) to progress towards enlightenment, as its rigorous application permits the existence of communication between God and human beings. Sikhism is a monotheistic faith that arose in northern India during the 16th and 17th centuries. Sikhs believe in one, timeless, omnipresent, supreme creator. The opening verse of the Guru Granth Sahib, known as the Mul Mantra, signifies this: Transliteration: ikk ōankār sat(i)-nām(u) karatā purakh(u) nirabha'u niravair(u) akāla mūrat(i) ajūnī saibhan(g) gur(a) prasād(i). One Universal creator God, The supreme Unchangeable Truth, The Creator of the Universe, Beyond Fear, Beyond Hatred, Beyond Death, Beyond Birth, Self-Existent, by Guru's Grace. The word "ੴ" ("Ik ōaṅkār") has two components. The first is ੧, the digit "1" in Gurmukhi signifying the singularity of the creator. Together the word means: "One Universal creator God". It is often said that the 1430 pages of the Guru Granth Sahib are all expansions on the Mul Mantra. Although the Sikhs have many names for God, some derived from Islam and Hinduism, they all refer to the same Supreme Being. The Sikh holy scriptures refer to the One God who pervades the whole of space and is the creator of all beings in the universe. The following quotation from the Guru Granth Sahib highlights this point: However, there is a strong case for arguing that the Guru Granth Sahib teaches monism due to its non-dualistic tendencies: Sikhs believe that God has been given many names, but they all refer to the One God, VāhiGurū. Sikh holy scripture (Guru Granth Sahib) speaks to all faiths and Sikhs believe that members of other religions such as Islam, Hinduism and Christianity all worship the same God, and the names Allah, Rahim, Karim, Hari, Raam and Paarbrahm are, therefore, frequently mentioned in the Sikh holy scripture (Guru Granth Sahib) . God in Sikhism is most commonly referred to as Akal Purakh (which means "the true immortal") or Waheguru, the Primal Being. Ancient Greek religion Classical Greece The surviving fragments of the poems of the classical Greek philosopher Xenophanes of Colophon suggest that he held views very similar to those of modern monotheists. His poems harshly criticize the traditional notion of anthropomorphic gods, commenting that "...if cattle and horses and lions had hands or could paint with their hands and create works such as men do,... [they] also would depict the gods' shapes and make their bodies of such a sort as the form they themselves have." Instead, Xenophanes declares that there is "...one god, greatest among gods and humans, like mortals neither in form nor in thought." Xenophanes's theology appears to have been monist, but not truly monotheistic in the strictest sense. Although some later philosophers, such as Antisthenes, believed in doctrines similar to those expounded by Xenophanes, his ideas do not appear to have become widely popular. Although Plato himself was a polytheist, in his writings, he often presents Socrates as speaking of "the god" in the singular form. He does, however, often speak of the gods in the plural form as well. The Euthyphro dilemma, for example, is formulated as "Is that which is holy loved by the gods because it is holy, or is it holy because it is loved by the gods?" Hellenistic religion The development of pure (philosophical) monotheism is a product of the Late Antiquity. During the 2nd to 3rd centuries, early Christianity was just one of several competing religious movements advocating monotheism. "The One" (Τὸ Ἕν) is a concept that is prominent in the writings of the Neoplatonists, especially those of the philosopher Plotinus. In the writings of Plotinus, "The One" is described as an inconceivable, transcendent, all-embodying, permanent, eternal, causative entity that permeates throughout all of existence. A number of oracles of Apollo from Didyma and Clarus, the so-called "theological oracles", dated to the 2nd and 3rd century CE, proclaim that there is only one highest god, of whom the gods of polytheistic religions are mere manifestations or servants. 4th century CE Cyprus had, besides Christianity, an apparently monotheistic cult of Dionysus. The Hypsistarians were a religious group who believed in a most high god, according to Greek documents. Later revisions of this Hellenic religion were adjusted towards monotheism as it gained consideration among a wider populace. The worship of Zeus as the head-god signaled a trend in the direction of monotheism, with less honour paid to the fragmented powers of the lesser gods. Native American religion Native American religions may be monotheistic, polytheistic, henotheistic, animistic, or some combination thereof. Cherokee religion, for example, is monotheist as well as pantheist. The Great Spirit, called Wakan Tanka among the Sioux, and Gitche Manitou in Algonquian, is a conception of universal spiritual force, or supreme being prevalent among some Native American and First Nation cultures. According to Lakota activist Russell Means a better translation of Wakan Tanka is the Great Mystery. Some researchers have interpreted Aztec philosophy as fundamentally monotheistic or panentheistic. While the populace at large believed in a polytheistic pantheon, Aztec priests and nobles might have come to an interpretation of Teotl as a single universal force with many facets. There has been criticism to this idea, however, most notably that many assertions of this supposed monotheism might actually come from post-Conquistador bias, imposing an Antiquity pagan model unto the Aztec. Tengrism Tengrism or Tangrism (sometimes stylized as Tengriism), occasionally referred to as Tengrianism, is a modern term for a Central Asian religion characterized by features of shamanism, animism, totemism, both polytheism and monotheism, and ancestor worship. Historically, it was the prevailing religion of the Bulgars, Turks, Mongols, and Hungarians, as well as the Xiongnu and the Huns. It was the state religion of the six ancient Turkic states: Avar Khaganate, Old Great Bulgaria, First Bulgarian Empire, Göktürks Khaganate, Eastern Tourkia and Western Turkic Khaganate. In Irk Bitig, Tengri is mentioned as Türük Tängrisi (God of Turks). The term is perceived among Turkic peoples as a national religion. In Chinese and Turco-Mongol traditions, the Supreme God is commonly referred to as the ruler of Heaven, or the Sky Lord granted with omnipotent powers, but it has largely diminished in those regions due to ancestor worship, Taoism's pantheistic views and Buddhism's rejection of a creator God. On some occasions in the mythology, the Sky Lord as identified as a male has been associated to mate with an Earth Mother, while some traditions kept the omnipotence of the Sky Lord unshared. New religious movements Various New religious movements, such as Rastafari, Tenrikyo, Seicho no Ie and Cheondoism are monotheistic. See also Criticism of monotheism Idolatry Intelligent design Panentheism Pantheism Post-monotheism Unmoved mover References Further reading William G. Dever, Who Were the Early Israelites?, Grand Rapids, MI: Eerdmans 2003. William G. Dever, Did God Have a Wife?: Archaeology and Folk Religion in Ancient Israel, Eerdmans, 2005, . Jonthan Kirsch, God Against The Gods: The History of the War Between Monotheism and Polytheism. Penguin Books. 2005. Hans Köchler. The Concept of Monotheism in Islam and Christianity. Vienna: Braumüller, 1982. (Google Books). Silberman, Neil A. et al.; The Bible Unearthed, New York: Simon & Schuster 2001. Keith Whitelam, The Invention of Ancient Israel, Routledge, New York 1997. External links About.com "What is Monolatry?" (Contains useful comparisons with henoteism etc.) Stanford Encyclopedia of Philosophy Christian Monotheism (biblical unitarians) Deism Philosophy of religion Religion in ancient Israel and Judah

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https://en.wikipedia.org/wiki/May%209

May 9

Events Pre-1600 328 - Athanasius is elected Patriarch of Alexandria. 1009 – Lombard Revolt: Lombard forces led by Melus revolt in Bari against the Byzantine Catepanate of Italy. 1386 – England and Portugal formally ratify their alliance with the signing of the Treaty of Windsor, making it the oldest diplomatic alliance in the world which is still in force. 1450 – 'Abd al-Latif (Timurid monarch) is assassinated. 1540 – Hernando de Alarcón sets sail on an expedition to the Gulf of California. 1601–1900 1662 – The figure who later became Mr. Punch makes his first recorded appearance in England. 1671 – Thomas Blood, disguised as a clergyman, attempts to steal England's Crown Jewels from the Tower of London. 1726 – Five men arrested during a raid on Mother Clap's molly house in London are executed at Tyburn. 1864 – Second Schleswig War: The Danish navy defeats the Austrian and Prussian fleets in the Battle of Heligoland. 1865 – American Civil War: Nathan Bedford Forrest surrenders his forces at Gainesville, Alabama. 1865 – American Civil War: President Andrew Johnson issues a proclamation ending belligerent rights of the rebels and enjoining foreign nations to intern or expel Confederate ships. 1873 – Der Krach: Vienna stock market crash heralds the Long Depression. 1877 – Mihail Kogălniceanu reads, in the Chamber of Deputies, the Declaration of Independence of Romania. This day became the Independence Day of Romania. 1901–present 1901 – Australia opens its first national parliament in Melbourne. 1911 – The works of Gabriele D'Annunzio are placed in the Index of Forbidden Books by the Vatican. 1915 – World War I: Second Battle of Artois between German and French forces. 1918 – World War I: Germany repels Britain's second attempt to blockade the port of Ostend, Belgium. 1920 – Polish–Soviet War: The Polish army under General Edward Rydz-Śmigły celebrates its capture of Kiev with a victory parade on Khreshchatyk. 1926 – Admiral Richard E. Byrd and Floyd Bennett claim to have flown over the North Pole (later discovery of Byrd's diary appears to cast some doubt on the claim.) 1927 – Old Parliament House, Canberra officially opens. 1936 – Italy formally annexes Ethiopia after taking the capital Addis Ababa on May 5. 1941 – World War II: The German submarine U-110 is captured by the Royal Navy. On board is the latest Enigma machine which Allied cryptographers later use to break coded German messages. 1942 – The Holocaust in Ukraine: The SS executes 588 Jewish residents of the Podolian town of Zinkiv (Khmelnytska oblast. The Zoludek Ghetto (in Belarus) is destroyed and all its inhabitants executed or deported. 1945 – World War II: The final German Instrument of Surrender is signed at the Soviet headquarters in Berlin-Karlshorst. 1946 – King Victor Emmanuel III of Italy abdicates and is succeeded by Umberto II. 1948 – Czechoslovakia's Ninth-of-May Constitution comes into effect. 1950 – Robert Schuman presents the "Schuman Declaration", is considered by some people to be the beginning of the creation of what is now the European Union. 1955 – Cold War: West Germany joins NATO. 1960 – The Food and Drug Administration announces it will approve birth control as an additional indication for Searle's Enovid, making Enovid the world's first approved oral contraceptive pill. 1969 – Carlos Lamarca leads the first urban guerrilla action against the military dictatorship of Brazil in São Paulo, by robbing two banks. 1974 – Watergate scandal: The United States House Committee on the Judiciary opens formal and public impeachment hearings against President Richard Nixon. 1979 – Iranian Jewish businessman Habib Elghanian is executed by firing squad in Tehran, prompting the mass exodus of the once 100,000-strong Jewish community of Iran. 1980 – In Florida, United States, Liberian freighter collides with the Sunshine Skyway Bridge over Tampa Bay, making a 1,400-ft. section of the southbound span collapse. Thirty-five people in six cars and a Greyhound bus fall 150 ft. into the water and die. 1980 – In Norco, California, United States, five masked gunmen hold up a Security Pacific bank, leading to a violent shoot-out and one of the largest pursuits in California history. Two of the gunmen and one police officer are killed and thirty-three police and civilian vehicles are destroyed in the chase. 1987 – LOT Flight 5055 Tadeusz Kościuszko crashes after takeoff in Warsaw, Poland, killing all 183 people on board. 1988 – New Parliament House, Canberra officially opens. 1992 – Armenian forces capture Shusha, marking a major turning point in the First Nagorno-Karabakh War. 1992 – Westray Mine disaster kills 26 workers in Nova Scotia, Canada. 2001 – In Ghana, 129 football fans die in what became known as the Accra Sports Stadium disaster. The deaths are caused by a stampede (caused by the firing of tear gas by police personnel at the stadium) that followed a controversial decision by the referee. 2002 – The 38-day stand-off in the Church of the Nativity in Bethlehem comes to an end when the Palestinians inside agree to have 13 suspected terrorists among them deported to several different countries. 2017 – US President Donald Trump fires FBI Director James Comey. 2018 – The historic defeat for Barisan Nasional, the governing coalition of Malaysia since the country's independence in 1957 in 2018 Malaysian general election. 2020 – The COVID-19 recession causes the U.S. unemployment rate to hit 14.9 percent, its worst rate since the Great Depression. Births Pre-1600 1147 – Minamoto no Yoritomo, Japanese shōgun (d. 1199) 1151 – al-Adid, last Fatimid caliph (d. 1171) 1170 – Valdemar II of Denmark (d. 1241) 1540 – Maharana Pratap, Indian ruler (d. 1597) 1555 – Jerónima de la Asunción, Spanish Catholic nun and founder of the first monastery in Manila (d. 1630) 1594 – Louis Henry, Prince of Nassau-Dillenburg, military leader in the Thirty Years' War (d. 1662) 1601–1900 1617 – Frederick, Landgrave of Hesse-Eschwege (d. 1655) 1740 – Giovanni Paisiello, Italian composer and educator (probable; d. 1816) 1746 – Gaspard Monge, French mathematician and engineer (d. 1818) 1763 – János Batsányi, Hungarian-Austrian poet and author (d. 1845) 1800 – John Brown, American activist (d. 1859) 1801 – Peter Hesketh-Fleetwood, English politician, founded the town of Fleetwood (d. 1866) 1814 – John Brougham, Irish-American actor and playwright (d. 1880) 1823 – Frederick Weld, English-New Zealand politician, 6th Prime Minister of New Zealand (d. 1891) 1824 – Jacob ben Moses Bachrach, Polish apologist and author (d. 1896) 1825 – James Collinson, Victorian painter (d. 1881) 1836 – Ferdinand Monoyer, French ophthalmologist, invented the Monoyer chart (d. 1912) 1837 – Adam Opel, German engineer, founded the Opel Company (d. 1895) 1845 – Gustaf de Laval, Swedish engineer and businessman (d. 1913) 1850 – Edward Weston, English-American chemist (d. 1936) 1855 – Julius Röntgen, German-Dutch composer (d. 1932) 1860 – J. M. Barrie, Scottish novelist and playwright (d. 1937) 1866 – Gopal Krishna Gokhale, Indian economist and politician (d. 1915) 1870 – Harry Vardon, British golfer (d. 1937) 1873 – Anton Cermak, Czech-American captain and politician, 44th Mayor of Chicago (d. 1933) 1874 – Howard Carter, English archaeologist and historian (d. 1939) 1882 – George Barker, American painter (d. 1965) 1882 – Henry J. Kaiser, American shipbuilder and businessman, founded Kaiser Shipyards (d. 1967) 1883 – José Ortega y Gasset, Spanish philosopher, author, and critic (d. 1955) 1884 – Valdemar Psilander, Danish actor (d. 1917) 1885 – Gianni Vella, Maltese artist (d. 1977) 1888 – Francesco Baracca, Italian fighter pilot (d. 1918) 1888 – Rolf de Maré, Swedish art collector (d. 1964) 1892 – Zita of Bourbon-Parma, last Empress of the Austro-Hungarian Empire (d. 1989) 1893 – William Moulton Marston, American psychologist and author (d. 1947) 1894 – Benjamin Graham, British-American economist, professor, and investor (d. 1976) 1895 – Richard Barthelmess, American actor (d. 1963) 1895 – Lucian Blaga, Romanian poet, playwright, and philosopher (d. 1961) 1895 – Frank Foss, American pole vaulter (d. 1989) 1896 – Richard Day, Canadian-American art director and set decorator (d. 1972) 1900 – Maria Malicka, Polish stage and film actress (d. 1992) 1901–present 1904 – Conrad Bernier, Canadian-American organist, composer, and educator (d. 1988) 1905 – Lilí Álvarez, Spanish tennis player, author, and feminist (d. 1998) 1906 – Eleanor Estes, American librarian, author, and illustrator (d. 1988) 1907 – Jackie Grant, Trinidadian cricketer (d. 1978) 1907 – Kathryn Kuhlman, American evangelist and author (d. 1976) 1907 – Baldur von Schirach, German politician (d. 1974) 1909 – Don Messer, Canadian violinist (d. 1973) 1909 – Gordon Bunshaft, American architect, designed the Solow Building (d. 1990) 1911 – Harry Simeone, American music arranger, conductor, and composer (d. 2005) 1912 – Pedro Armendáriz, Mexican-American actor (d. 1963) 1912 – Per Imerslund, Norwegian-German soldier and author (d. 1943) 1912 – Géza Ottlik, Hungarian mathematician and theorist (d. 1990) 1914 – Patricia Swift Blalock, American librarian (d.2011) 1914 – Denham Fouts, American prostitute (d. 1948) 1914 – Thanat Khoman, Thai politician and diplomat (d. 2016) 1914 – Carlo Maria Giulini, Italian conductor and director (d. 2005) 1914 – Hank Snow, American country music singer-songwriter and guitarist (d. 1999) 1916 – William Pène du Bois, American author and illustrator (d. 1993) 1917 – Fay Kanin, American screenwriter and producer (d. 2013) 1918 – Moisis Michail Bourlas, Greek soldier and educator (d. 2011) 1918 – Orville Freeman, American soldier and politician, 16th United States Secretary of Agriculture (d. 2003) 1918 – Mike Wallace, American journalist, media personality and one-time game show host (d. 2012) 1919 – Clifford Chadderton, Canadian soldier and journalist (d. 2013) 1920 – William Tenn, English-American author and academic (d. 2010) 1920 – Richard Adams, English novelist (d. 2016) 1921 – Daniel Berrigan, American priest, poet, and activist (d. 2016) 1921 – Sophie Scholl, German activist (d. 1943) 1921 – Mona Van Duyn, American poet and academic (d. 2004) 1923 – Johnny Grant, American radio host and producer (d. 2008) 1924 – Bulat Okudzhava, Russian singer, poet, and author (d. 1997) 1926 – John Middleton Murry, Jr., English soldier, pilot, and author (d. 2002) 1927 – Manfred Eigen, German chemist and academic, Nobel Prize laureate (d. 2019) 1928 – Ralph Goings, American painter (d. 2016) 1928 – Pancho Gonzales, American tennis player (d. 1995) 1928 – Barbara Ann Scott, Canadian figure skater (d. 2012) 1930 – Joan Sims, English actress (d. 2001) 1930 – Kalifa Tillisi, Libyan historian and linguist (d. 2010) 1931 – Vance D. Brand, American pilot, engineer, and astronaut 1932 – Conrad Hunte, Barbadian cricketer (d. 1999) 1932 – Geraldine McEwan, English actress (d. 2015) 1934 – Alan Bennett, English screenwriter, playwright, and novelist 1935 – Nokie Edwards, American guitarist (d. 2018) 1935 – Roger Hargreaves, English author and illustrator (d. 1988) 1936 – Terry Downes, British boxer and former world middle-weight champion (d. 2017) 1936 – Albert Finney, English actor (d. 2019) 1936 – Glenda Jackson, English actress and politician 1937 – Sonny Curtis, American singer-songwriter and guitarist 1937 – Rafael Moneo, Spanish architect, designed the Cathedral of Our Lady of the Angels and Valladolid Science Museum 1937 – Dave Prater, American singer (d. 1988) 1938 – Charles Simić, Serbian-American poet and editor 1939 – Ralph Boston, American long jumper 1939 – Ion Țiriac, Romanian tennis player and manager 1939 – Ken Warby, Australian motorboat racer 1939 – Giorgio Zancanaro, Italian baritone 1939 – John Ogbu, Nigerian-American anthropologist and professor (d. 2003) 1940 – James L. Brooks, American director, producer, and screenwriter 1941 – Dorothy Hyman, English sprinter 1941 – Danny Rapp, American musician (d. 1983) 1942 – John Ashcroft, American lawyer and politician, 79th United States Attorney General 1942 – Tommy Roe, American singer-songwriter and guitarist 1943 – Vince Cable, English economist and politician, former Secretary of State for Business, Innovation and Skills 1943 – Anders Isaksson, Swedish historian and journalist (d. 2009) 1943 – Colin Pillinger, English astronomer, chemist, and academic (d. 2014) 1944 – Richie Furay, American singer-songwriter and guitarist 1945 – Gamal El-Ghitani, Egyptian journalist and author (d. 2015) 1945 – Jupp Heynckes, German footballer and manager 1945 – Steve Katz, American guitarist, songwriter, and producer 1946 – Candice Bergen, American actress and producer 1946 – Ayşe Nur Zarakolu, Turkish author and activist (d. 2002) 1947 – Yukiya Amano, Japanese diplomat (d. 2019) 1948 – Hans Georg Bock, German mathematician, computer scientist, and academic 1948 – John Mahaffey, American golfer 1948 – Steven W. Mosher, American social scientist and author 1948 – Calvin Murphy, American basketball player and radio host 1949 – Billy Joel, American singer-songwriter and pianist 1949 – Richard S. Williamson, American lawyer and diplomat, 17th Assistant Secretary of State for International Organization Affairs (d. 2013) 1951 – Alley Mills, American actress 1953 – Bruno Brokken, Belgian high jumper 1955 – Meles Zenawi, Prime Minister of Ethiopia (d. 2012) 1955 – Anne Sofie von Otter, Swedish soprano and actress 1956 – Wendy Crewson, Canadian actress and producer 1956 – Jana Wendt, Australian television host 1958 – Graham Smith, Canadian swimmer 1959 – Andrew Jones, New Zealand cricketer 1960 – Tony Gwynn, American baseball player and coach (d. 2014) 1961 – Sean Altman, American singer-songwriter and guitarist 1961 – John Corbett, American actor 1962 – Dave Gahan, English singer-songwriter 1962 – Paul Heaton, English singer-songwriter 1963 – Joe Cirella, Canadian ice hockey player and coach 1965 – Ken Nomura, Japanese race car driver and sportscaster 1965 – Steve Yzerman, Canadian ice hockey player and manager 1966 – Mark Tinordi, Canadian ice hockey player and coach 1968 – Masahiko Harada, Japanese ski jumper 1968 – Graham Harman, American philosopher and academic 1968 – Ruth Kelly, British economist and politician, Secretary of State for Transport 1968 – Marie-José Pérec, French sprinter 1968 – Neil Ruddock, English international footballer and television personality 1970 – Doug Christie, American basketball player 1970 – Hao Haidong, Chinese footballer & all-time top scorer for Chinese national team 1970 – Ghostface Killah, American rapper and actor 1971 – Jason Lee, English footballer and manager 1971 – Dan Chiasson, American poet and critic 1972 – Megumi Odaka, Japanese actress and singer 1973 – Tegla Loroupe, Kenyan runner 1973 – Leonard Myles-Mills, Ghanaian sprinter 1975 – Tamia, Canadian singer-songwriter, producer, and actress 1975 – Brian Deegan, American motocross rider 1977 – Averno, Mexican wrestler 1977 – Marek Jankulovski, Czech footballer 1977 – Svein Tuft, Canadian cyclist 1978 – Leandro Cufré, Argentinian footballer 1978 – Santiago Dellapè, Argentinian-Italian rugby player 1978 – Aaron Harang, American baseball player 1978 – Marwan al-Shehhi, Emirati terrorist (d. 2001) 1979 – Pierre Bouvier, Canadian singer-songwriter and guitarist 1979 – Rosario Dawson, American actress 1979 – Andrew W.K., American singer-songwriter, multi-instrumentalist, motivational speaker, and music producer 1980 – Grant Hackett, Australian swimmer 1980 – Angela Nikodinov, American figure skater 1980 – Tony Schmidt, German race car driver 1980 – Jo Hyun-jae, South Korean actor 1981 – Bill Murphy, American baseball player 1981 – Evangelos Tsiolis, Greek footballer 1983 – Giacomo Brichetto, Italian footballer 1983 – Alan Campbell, British sculler 1983 – Christos Marangos, Cypriot footballer 1983 – Ryuhei Matsuda, Japanese actor 1983 – Gilles Müller, Luxembourgian tennis player 1983 – Tyler Lumsden, American baseball player 1983 – Leandro Rinaudo, Italian footballer 1984 – Prince Fielder, American baseball player 1984 – Chase Headley, American baseball player 1985 – Jake Long, American football player 1985 – Henrique Andrade Silva, Brazilian footballer 1987 – Scott Bolton, Australian rugby league player 1987 – Kevin Gameiro, French footballer 1987 – Vitaliy Pushkar, Ukrainian race car driver 1988 – J. R. Fitzpatrick, Canadian race car driver 1989 – Ellen White, English footballer 1991 – Majlinda Kelmendi, Kosovar judoka 1992 – Dan Burn, English footballer 1996 – Saron Läänmäe, Estonian footballer 1996 – Grace Reid, Scottish diver Deaths Pre-1600 729 – Osric, king of Northumbria 893 – Shi Pu, warlord of the Tang Dynasty 909 – Adalgar, archbishop of Hamburg-Bremen 934 – Wang Sitong, Chinese general and governor (b. 892) 1280 – Magnus VI of Norway 1315 – Hugh V, Duke of Burgundy (b. 1282) 1329 – John Drokensford, Bishop of Bath and Wells 1443 – Niccolò Albergati, Italian Cardinal and diplomat (b. 1373) 1446 – Mary of Enghien (b. 1368) 1590 – Charles de Bourbon French cardinal and pretender to the throne (b. 1523) 1601–1900 1657 – William Bradford, English-American politician, 2nd Governor of Plymouth Colony (b. 1590) 1707 – Dieterich Buxtehude, German-Danish organist and composer (b. 1637) 1736 – Diogo de Mendonça Corte-Real, Portuguese judge and politician (b. 1658) 1745 – Tomaso Antonio Vitali, Italian violinist and composer (b. 1663) 1747 – John Dalrymple, 2nd Earl of Stair, Scottish field marshal and diplomat, British Ambassador to France (b. 1673) 1760 – Nicolaus Zinzendorf, German bishop and saint (b. 1700) 1789 – Jean-Baptiste Vaquette de Gribeauval, French general and engineer (b. 1715) 1790 – William Clingan, American politician (b. 1721) 1791 – Francis Hopkinson, American judge and politician (b. 1737) 1805 – Friedrich Schiller, German poet, playwright, and historian (b. 1759) 1850 – Joseph Louis Gay-Lussac, French chemist and physicist (b. 1778) 1850 – Garlieb Merkel, Estonian author and activist (b. 1769) 1861 – Ernst von Lasaulx, German philologist and politician (b. 1805) 1864 – John Sedgwick, American general and educator (b. 1813) 1889 – William S. Harney, American general (b. 1800) 1901–present 1906 – Oscar von Gebhardt, German theologian and academic (b. 1844) 1914 – C. W. Post, American businessman, founded Post Foods (b. 1854) 1915 – François Faber, Luxembourgian-French cyclist and soldier (b. 1887) 1915 – Anthony Wilding, New Zealand tennis player and cricketer (b. 1883) 1918 – George Coșbuc, Romanian journalist and poet (b. 1866) 1931 – Albert Abraham Michelson, German-American physicist and academic, Nobel Prize laureate (b. 1852) 1933 – John Arthur Jarvis, English swimmer (b. 1872) 1935 – Ernst Bresslau, German zoologist (b. 1877) 1938 – Thomas B. Thrige, Danish businessman (b. 1866) 1942 – Józef Cebula, Polish priest and saint (b. 1902) 1944 – Han Yong-un, Korean poet and social reformer (b. 1879) 1949 – Louis II, Prince of Monaco (b. 1870) 1950 – Esteban Terradas i Illa, Spanish mathematician and engineer (b. 1883) 1957 – Ernest de Silva, Sri Lankan banker and businessman (b. 1887) 1957 – Ezio Pinza, Italian actor and singer (b. 1892) 1959 – Bhaurao Patil, Indian activist and educator (b. 1887) 1965 – Leopold Figl, Austrian engineer and politician, 18th Chancellor of Austria (b. 1902) 1968 – Mercedes de Acosta, American author, poet, and playwright (b. 1893) 1968 – Harold Gray, American cartoonist, created Little Orphan Annie (b. 1894) 1968 – Marion Lorne, American actress (b. 1883) 1968 – Finlay Currie, British actor (b. 1878) 1970 – Walter Reuther, American union leader (b. 1907) 1976 – Jens Bjørneboe, Norwegian author, poet, and playwright (b. 1920) 1976 – Ulrike Meinhof, German militant, co-founded the Red Army Faction (b. 1934) 1977 – James Jones, American novelist (b. 1921) 1978 – Giuseppe Impastato, Italian journalist and activist (b. 1948) 1978 – Aldo Moro, Italian lawyer and politician, 38th Prime Minister of Italy (b. 1916) 1979 – Cyrus S. 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https://en.wikipedia.org/wiki/Muay%20Thai

Muay Thai

Muay Thai (, , ), sometimes referred to as "Thai boxing," is a martial art and combat sport that uses stand-up striking along with various clinching techniques. This discipline is known as the "art of eight limbs," as it is characterised by the combined use of fists, elbows, knees, and shins. Muay Thai became widespread internationally in the late 20th to 21st century, when Westernised practitioners from Thailand began competing in kickboxing and mixed-rules matches as well as matches under Muay Thai rules around the world. The professional league is governed by The Professional Boxing Association of Thailand (P.A.T), sanctioned by The Sports Authority of Thailand (S.A.T.). Muay Thai is related to other martial art styles such as Musti-yuddha, Muay Chaiya, Muay boran, Muay Lao, Lethwei, Pradal Serey, and Tomoi. Muay Thai developed from the traditional Muay Boran. A practitioner of Muay Thai is known as a nak muay. Western practitioners in Thailand are sometimes called nak muay farang, meaning "foreign boxer." History The history of Muay Thai can be traced at least to the 16th century as a peace-time martial art practiced by the soldiers of King Naresuan. An exhibition of Muay Thai was observed and reported by Simon de la Loubère, a French diplomat who was sent by King Louis XIV to the Kingdom of Siam in 1687, in his famous work and the Ayutthaya Kingdom Burmese–Siamese War (1765–1767) Muay boran, and therefore Muay Thai, was originally called by more generic names such as toi muay or simply muay. As well as being a practical fighting technique for use in actual warfare, muay became a sport in which the opponents fought in front of spectators who went to watch for entertainment. These muay contests gradually became an integral part of local festivals and celebrations, especially those held at temples. Eventually, the previously bare-fisted fighters started wearing lengths of hemp rope around their hands and forearms. This type of match was called muay khat chueak (มวยคาดเชือก). 19th century The ascension of King Chulalongkorn (Rama V) to the throne in 1868 ushered in a golden age not only for muay but for the whole country of Thailand. Muay progressed greatly during the reign of Rama V as a direct result of the king's personal interest in the sport. The country was at peace and muay functioned as a means of physical exercise, self-defense, attacking, recreation, and personal advancement. The modern era 1909-1910: King Chulalongkorn formalized muay boran ("ancient boxing") by awarding (in 1910) three muen to victors at the funeral fights for his son (in 1909). The region style: Lopburi, Korat, and Chaiya. 1913: British boxing was introduced into the curriculum of the Suan Kulap College. The first descriptive use of the term "muay Thai." 1919: British boxing and muay taught as one sport in the curriculum of the Suan Kulap College. Judo was also offered. 1921: First permanent ring in Siam at Suan Kulap College. Used for both muay and British boxing. 1923: Suan Sanuk Stadium. First international style three-rope ring with red and blue padded corners, near Lumpinee Park. Muay and British boxing. King Rama VII (r. 1925–1935) pushed for codified rules for muay, and they were put into place. Thailand's first boxing ring was built in 1921 at Suan Kulap. Referees were introduced and rounds were now timed by kick. Fighters at the Lumpinee Boxing Stadium began wearing modern gloves, as well as hard groin protectors, during training and in boxing matches against foreigners. Traditional rope-binding (khat chueak) made the hands a hardened, dangerous striking tool. The use of knots in the rope over the knuckles made the strikes more abrasive and damaging for the opponent while protecting the hands of the fighter. This rope-binding was still used in fights between Thais but after the occurrence of a death in the ring, it was decided that fighters should wear gloves and cotton coverlets over the feet and ankles. It was also around this time that the term "muay Thai" became commonly used, while the older form of the style came to be known as "muay boran," which is now performed primarily as an exhibition art form. Muay Thai was at the height of its popularity in the 1980s and 1990s. Top fighters commanded purses of up to 200,000 baht and the stadia where gambling was legal drew big gates and big advertising revenues. , a payout to a superstar fighter was about 100,000 baht per fight, but can range as high as 540,000 baht for a bout. In 1993, the International Federation of Muaythai Amateur, or IFMA was inaugurated. It became the governing body of amateur muay Thai consisting of 128 member countries worldwide and is recognised by the Olympic Council of Asia. In 1995, the World Muaythai Council, the oldest and largest professional sanctioning organisations of muay Thai, was established by the Thai government and sanctioned by the Sports Authority of Thailand. In 1995, the World Muay Thai Federation was founded via the merger of two existing organisations, and established in Bangkok becoming the federation governing international muay Thai. As of August 2012, it had over 70 member countries. Its president is elected at the World Muay Thai Congress. In 2006, muay Thai was included in SportAccord with IFMA. One of the requirements of SportAccord was that no sport can have a name of a country in its name. As a result, an amendment was made in the IFMA constitution to change the name of the sport from "muay Thai" to "Muaythai"—written as one word in accordance with Olympic requirements. In 2014 muay Thai was included in the International World Games Association (IWGA) and will be represented in the official programme of The World Games 2017 in Wrocław, Poland. In January 2015, muay Thai was granted the patronage of the International University Sports Federation (FISU) and from 16 to 23 March 2015 the first University World Muaythai Cup was held in Bangkok. there are more than 3,800 Thai boxing gyms overseas. According to IFMA rules and regulations, Muaythai is a martial art of using every part of your body limbs therefore making every strike including punch, kick, knee, and elbow are allowed. Generally, for a strike to count towards the point score, it has to hit without being blocked or guarded against by the opponent. Strikes also do not score if they hit the opponent's glove, forearm, foot, or shin. Strikes to the groin are against the rules and if found to be intentional are counted as fouls. If both Muaythai fighters have the same score at the end of the round, the winner is determined by which fighter has a more powerful strike. Olympics Timeline of International Federation of Muaythai Associations (IFMA) from founding to International Olympic Committee (IOC) recognition: 1992 – Νational Federation of Muaythai Associations founded. 1995 – Ιnternational Amateur Muay Thai Federation (IAMTF) founded. 2012 – Official request for International Olympic Committee (IOC) recognition launched. 2016 – First endorsement received. 2017 – Muaythai is included in the World Games. 2021 – On June 10, the IOC Board of Directors agreed on the full endorsement of IFMA at the 138th IOC General Assembly in Tokyo. 2021 – On July 20, the IOC General Assembly granted full recognition to the International Federation of Muaythai Associations (IFMA) and Muaythai. Traditional wear The mongkhon, or mongkol, ("headband") and pra jiad ("armbands") are often worn into the ring before the match begins. They originated when Siam was in a constant state of war. Young men would tear off pieces of a loved one's clothing (often a mother's sarong) and wear it in battle for good luck as well as to ward off harmful spirits. In modern times the mongkol (lit. "holy spirit," "luck," "protection") is worn as a tribute to the fighter's gym. The mongkol is traditionally presented by a trainer to the fighter when he judges that the fighter is ready to represent the gym in the ring. Often, after the fighter has finished the wai kru, the trainer will take the mongkol off his head and place it in his corner of the ring for luck. They were also used for protection. Whether the fighter is a Buddhist or not, it is common for them to bring the mongkol to a Buddhist monk who blesses it for good luck prior to stepping into the ring. Techniques Formal muay Thai techniques are divided into two groups: mae mai (แม่ไม้), or "major techniques," and luk mai (ลูกไม้), or "minor techniques." Muay Thai is often a fighting art of attrition, where opponents exchange blows with one another. This is certainly the case with traditional stylists in Thailand, but is a less popular form of fighting in the contemporary world fighting circuit where the Thai style of exchanging blow for blow is no longer favorable. Almost all techniques in muay Thai use the entire body movement, rotating the hip with each kick, punch, elbow, and block. Punching (Chok) The punch techniques in muay Thai were originally quite limited, being crosses and a long (or lazy) circular strike made with a straight (but not locked) arm and landing with the heel of the palm. Cross-fertilisation with Western boxing and Western martial arts mean the full range of western boxing punches are now used: lead jab, straight/cross, hook, uppercut, shovel and corkscrew punches, and overhands, as well as hammer fists and back fists. As a tactic, body punching is used less in muay Thai than most other striking combat sports to avoid exposing the attacker's head to counter strikes from knees or elbows. To utilize the range of targeting points, in keeping with the centre line theory, the fighter can use either the Western or Thai stance which allows for either long range or short range attacks to be undertaken effectively without compromising guard. Elbow (Sok) The elbow can be used in several ways as a striking weapon: horizontal, diagonal-upwards, diagonal-downwards, uppercut, downward, backward-spinning, and flying. From the side, it can be used as either a finishing move or as a way to cut the opponent's eyebrow so that blood might block his vision. The diagonal elbows are faster than the other forms but are less powerful. The elbow strike is considered the most dangerous form of attack in the sport. There is a distinct difference between a single elbow and a follow-up elbow. The single elbow is a move independent from any other, whereas a follow-up elbow is the second strike from the same arm, being a hook or straight punch first with an elbow follow-up. Such elbows, and most other elbow strikes, are used when the distance between fighters becomes too small and there is too little space to throw a hook at the opponent's head. Elbows can be used to great effect as blocks or defences against, for example, spring knees, side body knees, body kicks, or punches. When well connected, an elbow strike can cause serious damage to the opponent, including cuts or even a knockout. Kicking (Te) The two most common kicks in muay Thai are known as the thip (literally "foot jab") and the te chiang (kicking upwards in the shape of a triangle cutting under the arm and ribs), or roundhouse kick. The Thai roundhouse kick uses a rotational movement of the entire body and has been widely adopted by practitioners of other combat sports. It is done from a circular stance with the back leg just a little ways back (roughly shoulder width apart) in comparison to instinctive upper body fighting (boxing) where the legs must create a wider base. The roundhouse kick draws its power almost entirely from the rotational movement of the hips, counter-rotation of the shoulders and arms are also often used to add torque to the lower body and increase the power of the kick as well. If a roundhouse kick is attempted by the opponent, the Thai boxer will normally check the kick, that is, he will block the kick with the outside of his lower leg. Thai boxers are trained to always connect with the shin. The foot contains many fine bones and is much weaker. A fighter may end up hurting himself if he tries to strike with his foot or instep. Shins are trained by repeatedly striking firm objects, such as pads or heavy bags. Knee (Ti Khao) Khao dot (Jumping knee strike) – the boxer jumps up on one leg and strikes with that leg's knee. Khao loi (Flying knee strike) – the boxer takes a step(s), jumps forward and off one leg and strikes with that leg's knee. Khao thon (Straight knee strike) – the boxer simply thrusts it forward but not upwards, unless he is holding an opponent's head down in a clinch and intend to knee upwards into the face. According to one written source, this technique is somewhat more recent than khao dot or khao loi. Supposedly, when the Thai boxers fought with rope-bound hands rather than the modern boxing gloves, this particular technique was subject to potentially vicious cutting, slicing and sawing by an alert opponent who would block it or deflect it with the sharp "rope-glove" edges which are sometimes dipped in water to make the rope much stronger. This explanation also holds true for some of the following knee strikes below as well. Foot-thrust (Teep) The foot-thrust, or literally, "foot jab," is one of the techniques in muay Thai. It is mainly used as a defensive technique to control distance or block attacks. Foot-thrusts should be thrown quickly but with enough force to knock an opponent off balance. Clinch and neck wrestling (Chap kho) In Western boxing, the two fighters are separated when they clinch; in muay Thai, however, they are not. It is often in the clinch where knee and elbow techniques are used. To strike and bind the opponent for both offensive and defensive purposes, small amounts of stand-up grappling are used in the clinch. The front clinch should be performed with the palm of one hand on the back of the other. There are three reasons why the fingers must not be intertwined. 1) In the ring fighters are wearing boxing gloves and cannot intertwine their fingers. 2) The Thai front clinch involves pressing the head of the opponent downwards, which is easier if the hands are locked behind the back of the head instead of behind the neck. Furthermore, the arms should be putting as much pressure on the neck as possible. 3) A fighter may incur an injury to one or more fingers if they are intertwined, and it becomes more difficult to release the grip in order to quickly elbow the opponent's head. A correct clinch also involves the fighter's forearms pressing against the opponent's collar bone while the hands are around the opponent's head rather than the opponent's neck. The general way to get out of a clinch is to push the opponent's head backward or elbow them, as the clinch requires both participants to be very close to one another. Additionally, the non-dominant clincher can try to "swim" their arm underneath and inside the opponent's clinch, establishing the previously non-dominant clincher as the dominant clincher. Muay Thai has several other variants of the clinch or chap kho , including: arm clinch: One or both hands controls the inside of the defender's arm(s) and where the second hand if free is in the front clinch position. This clinch is used to briefly control the opponent before applying a knee strike or throw side clinch: One arm passes around the front of the defender with the attacker's shoulder pressed into the defender's arm pit and the other arm passing round the back which allows the attacker to apply knee strikes to the defender's back or to throw the defender readily. low clinch: Both controlling arms pass under the defender's arms, which is generally used by the shorter of two opponents. swan-neck: One hand around the rear of the neck is used to briefly clinch an opponent before a strike. Defence against attacks Defences in muay Thai are categorised in six groups: Blocking – defender's hard blocks to stop a strike in its path so preventing it reaching its target (e.g. the shin block described in more detail below) Parries – defender's soft parries to change the direction of a strike (e.g. a downwards tap to a jab) so that it misses the target Avoidance – moving a body part out of the way or range of a strike so the defender remains in range for a counter-strike. For example, the defender moves their front leg backward to avoid the attacker's low kick, then immediately counters with a roundhouse kick. Or the defender might lay their head back from the attacker's high roundhouse kick then counter-attack with a side kick. Evasion – moving the body out of the way or range of a strike so the defender has to move close again to counter-attack, e.g. defender jumping laterally or back from attacker's kicks Disruption – Pre-empting an attack e.g. with defender using disruptive techniques like jab, foot-thrust or low roundhouse kick, generally called a "leg kick" (to the outside or inside of the attacker's front leg, just above the knee) as the attacker attempts to close distance Anticipation – Defender catching a strike (e.g., catching a roundhouse kick to the body) or countering it before it lands (e.g., defender's low kick to the supporting leg below as the attacker initiates a high roundhouse kick). Defences in practice Defensively, the concept of "wall of defence" is used, in which shoulders, arms and legs are used to hinder the attacker from successfully executing techniques. Blocking is a critical element in muay Thai and compounds the level of conditioning a successful practitioner must possess. Low and mid body roundhouse kicks are normally blocked with the upper portion of a raised shin (this block is known as a "check"). High body strikes are blocked ideally with the forearms and shoulder together, or if enough time is allowed for a parry, the glove (elusively), elbow, or shin will be used. Midsection roundhouse kicks can also be caught/trapped, allowing for a sweep or counter-attack to the remaining leg of the opponent. Punches are blocked with an ordinary boxing guard and techniques similar, if not identical, to basic boxing technique. A common means of blocking a punch is using the hand on the same side as the oncoming punch. For example, if an orthodox fighter throws a jab (being the left hand), the defender will make a slight tap to redirect the punch's angle with the right hand. The deflection is always as small and precise as possible to avoid unnecessary energy expenditure and return the hand to the guard as quickly as possible. Hooks are often blocked with a motion sometimes described as "combing the hair," that is, raising the elbow forward and effectively shielding the head with the forearm, flexed biceps, and shoulder. More advanced muay Thai blocks are usually in the form of counter-strikes, using the opponent's weight (as they strike) to amplify the damage that the countering opponent can deliver. This requires impeccable timing and thus can generally only be learned by many repetitions. Child boxers In 2016, 9,998 children under the age of 15 were registered with Board of Boxing under the Sport Authority of Thailand, according to the Child Safety Promotion and Injury Prevention Research Centre (CSIP). Four hundred twenty young boxers registered with the board annually, between 2007 and 2015. Some estimates put the number of child boxers nationwide at between 200,000 and 300,000, some as young as four years old. The Advanced Diagnostic Imaging Centre (AIMC) at Ramathibodi Hospital studied 300 child boxers aged under 15 with two to more than five years of experience, as well as 200 children who do not box. The findings show that child boxers not only sustain brain injuries, they also have a lower IQ, about 10 points lower than average levels. Moreover, IQ levels correlate with the length of their training. Beyond brain damage, the death of young fighters in the ring sometimes occurs. Adisak Plitapolkarnpim, director of CSIP, was indirectly quoted (in 2016) as having said that muay Thai practitioners "younger than 15 years old are being urged to avoid 'head contact' to reduce the risk of brain injuries, while children aged under nine should be banned from the combat fight"; furthermore, the Boxing Act's minimum age to compete professionally was largely being flouted; furthermore, indirectly quoted: "Boxers aged between 13 and 15" should still be permitted to compete, but "with light contact to the head and face"; he said that "Spectators and a change in the boxing rules can play a vital role in preventing child boxers from suffering brain injuries, abnormality in brain structure, Parkinson's disease and early-onset Alzheimer's later in life...Children aged between nine and 15 can take part in [Thai] boxing, but direct head contact must not be allowed." Referring to Findings [of 2014] on the Worst Forms of Child Labour as published by the US Department of Labor's Bureau of International Labor Affairs, he said that, "We know Muay Thai paid fighters have been exploited in the past like child labourers and the matter still remains a serious concern". At the 13th World Conference on Injury Prevention and Safety Promotion in 2018, it was revealed that up to three percent of the upcoming generation will grow up with learning disabilities unless an amendment is ratified that bans children under 12 from participating in boxing matches. International pediatricians have called on lawmakers in Thailand to help. Injuries Muay Thai is a combat sport that utilises eight different parts of the body (fists, elbows, knees, and shins); therefore, injuries are quite common in all levels of muay Thai. An injury is considered reportable if it requires the athlete to rest for more than one day. Many injuries in the sport of muay Thai go unreported as the fighters may not notice the injuries at first, refuse to admit that they need treatment, have a heightened pain threshold, fear that their instructor will perceive the injury negatively, or have confusion as to what is an injury. Similar to most sports, injury rates tend to be higher in beginners than amateurs and professionals. Soft tissue injuries are the most common form of injury in muay Thai, comprising between 80 and 90% of all injuries. These injuries are caused by repeated trauma to soft parts of the body. During matches there is little to no padding, leaving soft tissue vulnerable to strikes. The second most common injuries among beginner and amateur muay Thai fighters are sprains and strains. It appears that these injuries can be easily avoided or reduced. Many participants of a study admitted to inadequate warm up before the event of the injury. The third most common injuries are fractures. Fractures are more commonly seen with amateur and professional fighters, because they are allowed full contact, while beginners are allowed no contact. The most common sites for fractures are the nose, carpal bones, metacarpals, digits, and ribs. The distribution of injuries differs significantly for beginners, amateurs and professionals, because as a fighter progresses through the different levels, the forces involved grow progressively higher, less padding and protective equipment is used, and athletes are likely to train harder, resulting in more serious injuries among experienced fighters. Gambling According to a Bangkok Post columnist, "...Thai professional boxing is all about gambling and big money. Gambling on muay Thai boxing is estimated to worth about 40 billion baht a year....all the talk about the promotion of Thai martial arts is just baloney." Rob Cox, the manager of a boxing camp just east of Bangkok claims that "Without the gamblers, the sport would pretty much be dead. They're killing it off, but they’re also keeping it alive." The practice of fixing fights is not unknown. Boxers can earn from 60,000 to 150,000 baht for purposefully losing a fight. A fighter, later arrested, who threw a fight at Rajadamnern Stadium in December 2019, is only the most recent example. An infamous alleged case of match-fixing was the bout on 12 October 2014 in Pattaya between top Thai boxer Buakaw Banchamek and his challenger, Enriko Kehl, at the K-1 World Max Final event. Folklore An urban legend started being told by Thai people in 1767 around the time of the fall of the ancient Siamese capital of Ayutthaya, when the invading Burmese troops rounded up thousands of Siamese citizens. They then organised a seven-day, seven-night religious festival in honour of Buddha's relics. The festivities included many forms of entertainment, such as costume plays, comedies and sword fighting matches. According to the folklore story, at one point, King Mangra wanted to see how Thai fighters would compare to his fighters. Nai Khanomtom was selected to fight against the King's chosen champion and the boxing ring was set up in front of the throne. When the fight began, Nai Khanomtom charged out, using punches, kicks, elbows, and knees to pummel his opponent until he collapsed. The King supposedly asked if Nai Khanomtom would fight nine other Burmese champions to prove himself. He agreed and fought one after the other with no rest periods. His last opponent was a great kickboxing teacher from Rakhine State whom Nai Khanomtom defeated with kicks. King Mangra was so impressed that he allegedly remarked that "[e]very part of the Siamese is blessed with venom. Even with his bare hands, he can fell nine or ten opponents. But his Lord was incompetent and lost the country to the enemy. If he had been any good, there was no way the City of Ayutthaya would ever have fallen." To commemorate the story of Nai Khanom Tom, the Muay Thai Festival and Wai Khru Muay Thai Ceremony are staged annually every year on March 17. Conditioning Like most full contact fighting sports, Muay Thai has a heavy focus on body conditioning. This can create a steep learning curve for newcomers to Muay Thai but allows for rapid increases in fitness and stamina provided one avoids overtraining. Training regimens include many staples of combat sport conditioning such as running, shadowboxing, rope jumping, body weight resistance exercises, medicine ball exercises, abdominal exercises, and, in some cases, weight training. Thai boxers rely heavily on kicks utilising the shin bone. As such, practitioners of muay Thai will repeatedly hit a dense heavy bag with their shins, conditioning it, hardening the bone through a process called cortical remodelling. Striking a sand-filled bag will have the same effect. Training specific to a Thai fighter includes training with coaches on Thai pads, focus mitts, heavy bag, and sparring. Daily training includes many rounds (3–5 minute periods broken up by a short rest, often 1–2 minutes) of these various methods of practice. Thai pad training is a cornerstone of muay Thai conditioning that involves practicing punches, kicks, knees, and elbow strikes with a trainer wearing thick pads covering the forearms and hands. These special pads (often referred to as Thai pads) are used to absorb the impact of the fighter's strikes and allow the fighter to react to the attacks of the pad holder in a live situation. The trainer will often also wear a belly pad around the abdominal area so that the fighter can attack with straight kicks or knees to the body at any time during the round. Focus mitts are specific to training a fighter's hand speed, punch combinations, timing, punching power, defence, and counter-punching and may also be used to practice elbow strikes. Heavy bag training is a conditioning and power exercise that reinforces the techniques practiced on the pads. Sparring is a means to test technique, skills, range, strategy, and timing against a partner. Sparring is often a light to medium contact exercise because competitive fighters on a full schedule are not advised to risk injury by sparring hard. Specific tactics and strategies can be trained with sparring including in close fighting, clinching and kneeing only, cutting off the ring, or using reach and distance to keep an aggressive fighter away. Due to the rigorous training regimen (some Thai boxers fight almost every other week), professional boxers in Thailand have relatively short careers in the ring. Many retire from competition to begin instructing the next generation of Thai fighters. Most professional Thai boxers come from lower economic backgrounds, and the purse (after other parties get their cut) is sought as means of support for the fighters and their families. Very few higher economic strata Thais join the professional muay Thai ranks; they usually either do not practice the sport or practice it only as amateur boxers. Famous practitioners Popular culture In the 1999 version of The King and I, the Prince uses Muay Thai. The Marvel Cinematic Universe features Muay Thai used by Shang Chi, Hope van Dyne and George Batroc. See also Muay Boran Muay Chaiya Muay Lerdrit Wai khru ram muay Pra Jiad Mongkhon Muay Thai in popular culture Krabi–krabong Pencak silat References Further reading Muay Thai The Essential Guide To The Art of Thai Boxing. Tony Moore. New Holland. . Wei, Lindsey (2020) Path of the Spiritual Warrior: Life and Teachings of Muay Thai Fighter Pedro Solana. Auckland: Purple Cloud Press, Mixed martial arts styles Combat sports Thai sports and games Sports originating in Thailand

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https://en.wikipedia.org/wiki/Mao%20Zedong

Mao Zedong

Mao Zedong (December 26, 1893 – September 9, 1976), also known as Chairman Mao, was a Chinese communist revolutionary who was the founding father of the People's Republic of China (PRC), which he ruled as the chairman of the Chinese Communist Party from the establishment of the PRC in 1949 until his death in 1976. Ideologically a Marxist–Leninist, his theories, military strategies, and political policies are collectively known as Maoism. Mao was the son of a prosperous peasant in Shaoshan, Hunan. He supported Chinese nationalism and had an anti-imperialist outlook early in his life, and was particularly influenced by the events of the Xinhai Revolution of 1911 and May Fourth Movement of 1919. He later adopted Marxism–Leninism while working at Peking University as a librarian and became a founding member of the Chinese Communist Party (CCP), leading the Autumn Harvest Uprising in 1927. During the Chinese Civil War between the Kuomintang (KMT) and the CCP, Mao helped to found the Chinese Workers' and Peasants' Red Army, led the Jiangxi Soviet's radical land policies, and ultimately became head of the CCP during the Long March. Although the CCP temporarily allied with the KMT under the Second United Front during the Second Sino-Japanese War (1937–1945), China's civil war resumed after Japan's surrender, and Mao's forces defeated the Nationalist government, which withdrew to Taiwan in 1949. On October 1, 1949, Mao proclaimed the foundation of the PRC, a Marxist–Leninist single-party state controlled by the CCP. In the following years he solidified his control through the Chinese Land Reform against landlords, the Campaign to Suppress Counterrevolutionaries, the "Three-anti and Five-anti Campaigns", and through a psychological victory in the Korean War, which altogether resulted in the deaths of several million Chinese. From 1953 to 1958, Mao played an important role in enforcing planned economy in China, constructing the first Constitution of the PRC, launching the industrialisation program, and initiating military projects such as the "Two Bombs, One Satellite" project and Project 523. His foreign policies during this time were dominated by the Sino-Soviet split which drove a wedge between China and the Soviet Union. In 1955, Mao launched the Sufan movement, and in 1957 he launched the Anti-Rightist Campaign, in which at least 550,000 people, mostly intellectuals and dissidents, were persecuted. In 1958, he launched the Great Leap Forward that aimed to rapidly transform China's economy from agrarian to industrial, which led to the deadliest famine in history and the deaths of 15–55 million people between 1958 and 1962. In 1963, Mao launched the Socialist Education Movement, and in 1966 he initiated the Cultural Revolution, a program to remove "counter-revolutionary" elements in Chinese society which lasted 10 years and was marked by violent class struggle, widespread destruction of cultural artifacts, and an unprecedented elevation of Mao's cult of personality. Tens of millions of people were persecuted during the Revolution, while the estimated number of deaths ranges from hundreds of thousands to millions. After years of ill health, Mao suffered a series of heart attacks in 1976 and died at the age of 82. During Mao's era, China's population grew from around 550 million to over 900 million while the government did not strictly enforce its family planning policy. A controversial figure within and outside China, Mao is still regarded as one of the most important individuals in the twentieth century. Beyond politics, Mao is also known as a theorist, military strategist, and poet. During the Mao era, China was heavily involved with other southeast Asian communist conflicts such as the Korean War, the Vietnam War, and the Cambodian Civil War, which brought the Khmer Rouge to power. He ruled China through an autocratic and totalitarian regime responsible for mass repression as well as destruction of religious and cultural artifacts and sites. The government was responsible for vast numbers of deaths with estimates ranging from 40 to 80 million victims through starvation, persecution, prison labour, and mass executions. Mao has been praised for transforming China from a semi-colony to a leading world power, with greatly advanced literacy, women's rights, basic healthcare, primary education and life expectancy. English romanisation of name During Mao's lifetime, the English-language media universally rendered his name as Mao Tse-tung, using the Wade-Giles system of transliteration for Standard Chinese though with the circumflex accent in the syllable Tsê dropped. Due to its recognizability, the spelling was used widely, even by the Foreign Ministry of the PRC after Hanyu Pinyin became the PRC's official romanisation system for Mandarin Chinese in 1958; the well-known booklet of Mao's political statements, The Little Red Book, was officially entitled Quotations from Chairman Mao Tse-tung in English translations. While the pinyin-derived spelling Mao Zedong is increasingly common, the Wade-Giles-derived spelling Mao Tse-tung continues to be used in modern publications to some extent. Early life Youth and the Xinhai Revolution: 1893–1911 Mao was born on December 26, 1893, in Shaoshan village, Hunan. His father, Mao Yichang, was a formerly impoverished peasant who had become one of the wealthiest farmers in Shaoshan. Growing up in rural Hunan, Mao described his father as a stern disciplinarian, who would beat him and his three siblings, the boys Zemin and Zetan, as well as an adopted girl, Zejian. Mao's mother, Wen Qimei, was a devout Buddhist who tried to temper her husband's strict attitude. Mao too became a Buddhist, but abandoned this faith in his mid-teenage years. At age 8, Mao was sent to Shaoshan Primary School. Learning the value systems of Confucianism, he later admitted that he did not enjoy the classical Chinese texts preaching Confucian morals, instead favouring classic novels like Romance of the Three Kingdoms and Water Margin. At age 13, Mao finished primary education, and his father united him in an arranged marriage to the 17-year-old Luo Yixiu, thereby uniting their land-owning families. Mao refused to recognise her as his wife, becoming a fierce critic of arranged marriage and temporarily moving away. Luo was locally disgraced and died in 1910. While working on his father's farm, Mao read voraciously and developed a "political consciousness" from Zheng Guanying's booklet which lamented the deterioration of Chinese power and argued for the adoption of representative democracy. Interested in history, Mao was inspired by the military prowess and nationalistic fervour of George Washington and Napoleon Bonaparte. His political views were shaped by Gelaohui-led protests which erupted following a famine in Changsha, the capital of Hunan; Mao supported the protesters' demands, but the armed forces suppressed the dissenters and executed their leaders. The famine spread to Shaoshan, where starving peasants seized his father's grain. He disapproved of their actions as morally wrong, but claimed sympathy for their situation. At age 16, Mao moved to a higher primary school in nearby Dongshan, where he was bullied for his peasant background. In 1911, Mao began middle school in Changsha. Revolutionary sentiment was strong in the city, where there was widespread animosity towards Emperor Puyi's absolute monarchy and many were advocating republicanism. The republicans' figurehead was Sun Yat-sen, an American-educated Christian who led the Tongmenghui society. In Changsha, Mao was influenced by Sun's newspaper, The People's Independence (Minli bao), and called for Sun to become president in a school essay. As a symbol of rebellion against the Manchu monarch, Mao and a friend cut off their queue pigtails, a sign of subservience to the emperor. Inspired by Sun's republicanism, the army rose up across southern China, sparking the Xinhai Revolution. Changsha's governor fled, leaving the city in republican control. Supporting the revolution, Mao joined the rebel army as a private soldier, but was not involved in fighting. The northern provinces remained loyal to the emperor, and hoping to avoid a civil war, Sun—proclaimed "provisional president" by his supporters—compromised with the monarchist general Yuan Shikai. The monarchy was abolished, creating the Republic of China, but the monarchist Yuan became president. The revolution over, Mao resigned from the army in 1912, after six months as a soldier. Around this time, Mao discovered socialism from a newspaper article; proceeding to read pamphlets by Jiang Kanghu, the student founder of the Chinese Socialist Party, Mao remained interested yet unconvinced by the idea. Fourth Normal School of Changsha: 1912–1919 Over the next few years, Mao Zedong enrolled and dropped out of a police academy, a soap-production school, a law school, an economics school, and the government-run Changsha Middle School. Studying independently, he spent much time in Changsha's library, reading core works of classical liberalism such as Adam Smith's The Wealth of Nations and Montesquieu's The Spirit of the Laws, as well as the works of western scientists and philosophers such as Darwin, Mill, Rousseau, and Spencer. Viewing himself as an intellectual, years later he admitted that at this time he thought himself better than working people. He was inspired by Friedrich Paulsen, a neo-Kantian philosopher and educator whose emphasis on the achievement of a carefully defined goal as the highest value led Mao to believe that strong individuals were not bound by moral codes but should strive for a great goal. His father saw no use in his son's intellectual pursuits, cut off his allowance and forced him to move into a hostel for the destitute. Mao desired to become a teacher and enrolled at the Fourth Normal School of Changsha, which soon merged with the First Normal School of Hunan, widely seen as the best in Hunan. Befriending Mao, professor Yang Changji urged him to read a radical newspaper, New Youth (Xin qingnian), the creation of his friend Chen Duxiu, a dean at Peking University. Although he was a supporter of Chinese nationalism, Chen argued that China must look to the west to cleanse itself of superstition and autocracy. In his first school year, Mao befriended an older student, Xiao Zisheng; together they went on a walking tour of Hunan, begging and writing literary couplets to obtain food. A popular student, in 1915 Mao was elected secretary of the Students Society. He organised the Association for Student Self-Government and led protests against school rules. Mao published his first article in New Youth in April 1917, instructing readers to increase their physical strength to serve the revolution. He joined the Society for the Study of Wang Fuzhi (Chuan-shan Hsüeh-she), a revolutionary group founded by Changsha literati who wished to emulate the philosopher Wang Fuzhi. In spring 1917, he was elected to command the students' volunteer army, set up to defend the school from marauding soldiers. Increasingly interested in the techniques of war, he took a keen interest in World War I, and also began to develop a sense of solidarity with workers. Mao undertook feats of physical endurance with Xiao Zisheng and Cai Hesen, and with other young revolutionaries they formed the Renovation of the People Study Society in April 1918 to debate Chen Duxiu's ideas. Desiring personal and societal transformation, the Society gained 70–80 members, many of whom would later join the Communist Party. Mao graduated in June 1919, ranked third in the year. Early revolutionary activity Beijing, anarchism, and Marxism: 1917–1919 Mao moved to Beijing, where his mentor Yang Changji had taken a job at Peking University. Yang thought Mao exceptionally "intelligent and handsome", securing him a job as assistant to the university librarian Li Dazhao, who would become an early Chinese Communist. Li authored a series of New Youth articles on the October Revolution in Russia, during which the Communist Bolshevik Party under the leadership of Vladimir Lenin had seized power. Lenin was an advocate of the socio-political theory of Marxism, first developed by the German sociologists Karl Marx and Friedrich Engels, and Li's articles added Marxism to the doctrines in Chinese revolutionary movement. Becoming "more and more radical", Mao was initially influenced by Peter Kropotkin's anarchism, which was the most prominent radical doctrine of the day. Chinese anarchists, such as Cai Yuanpei, Chancellor of Peking University, called for complete social revolution in social relations, family structure, and women's equality, rather than the simple change in the form of government called for by earlier revolutionaries. He joined Li's Study Group and "developed rapidly toward Marxism" during the winter of 1919. Paid a low wage, Mao lived in a cramped room with seven other Hunanese students, but believed that Beijing's beauty offered "vivid and living compensation". At the university, Mao was snubbed by other students due to his rural Hunanese accent and lowly position. He joined the university's Philosophy and Journalism Societies and attended lectures and seminars by the likes of Chen Duxiu, Hu Shih, and Qian Xuantong. Mao's time in Beijing ended in the spring of 1919, when he travelled to Shanghai with friends who were preparing to leave for France. He did not return to Shaoshan, where his mother was terminally ill. She died in October 1919 and her husband died in January 1920. New Culture and political protests, 1919–1920 On May 4, 1919, students in Beijing gathered at the Tiananmen to protest the Chinese government's weak resistance to Japanese expansion in China. Patriots were outraged at the influence given to Japan in the Twenty-One Demands in 1915, the complicity of Duan Qirui's Beiyang Government, and the betrayal of China in the Treaty of Versailles, wherein Japan was allowed to receive territories in Shandong which had been surrendered by Germany. These demonstrations ignited the nationwide May Fourth Movement and fuelled the New Culture Movement which blamed China's diplomatic defeats on social and cultural backwardness. In Changsha, Mao had begun teaching history at the Xiuye Primary School and organising protests against the pro-Duan Governor of Hunan Province, Zhang Jingyao, popularly known as "Zhang the Venomous" due to his corrupt and violent rule. In late May, Mao co-founded the Hunanese Student Association with He Shuheng and Deng Zhongxia, organising a student strike for June and in July 1919 began production of a weekly radical magazine, Xiang River Review (Xiangjiang pinglun). Using vernacular language that would be understandable to the majority of China's populace, he advocated the need for a "Great Union of the Popular Masses", strengthened trade unions able to wage non-violent revolution. His ideas were not Marxist, but heavily influenced by Kropotkin's concept of mutual aid. Zhang banned the Student Association, but Mao continued publishing after assuming editorship of the liberal magazine New Hunan (Xin Hunan) and offered articles in popular local newspaper Justice (Ta Kung Po). Several of these advocated feminist views, calling for the liberation of women in Chinese society; Mao was influenced by his forced arranged-marriage. In December 1919, Mao helped organise a general strike in Hunan, securing some concessions, but Mao and other student leaders felt threatened by Zhang, and Mao returned to Beijing, visiting the terminally ill Yang Changji. Mao found that his articles had achieved a level of fame among the revolutionary movement, and set about soliciting support in overthrowing Zhang. Coming across newly translated Marxist literature by Thomas Kirkup, Karl Kautsky, and Marx and Engels—notably The Communist Manifesto—he came under their increasing influence, but was still eclectic in his views. Mao visited Tianjin, Jinan, and Qufu, before moving to Shanghai, where he worked as a laundryman and met Chen Duxiu, noting that Chen's adoption of Marxism "deeply impressed me at what was probably a critical period in my life". In Shanghai, Mao met an old teacher of his, Yi Peiji, a revolutionary and member of the Kuomintang (KMT), or Chinese Nationalist Party, which was gaining increasing support and influence. Yi introduced Mao to General Tan Yankai, a senior KMT member who held the loyalty of troops stationed along the Hunanese border with Guangdong. Tan was plotting to overthrow Zhang, and Mao aided him by organising the Changsha students. In June 1920, Tan led his troops into Changsha, and Zhang fled. In the subsequent reorganisation of the provincial administration, Mao was appointed headmaster of the junior section of the First Normal School. Now receiving a large income, he married Yang Kaihui in the winter of 1920. Founding the Chinese Communist Party: 1921–1922 The Chinese Communist Party was founded by Chen Duxiu and Li Dazhao in the French concession of Shanghai in 1921 as a study society and informal network. Mao set up a Changsha branch, also establishing a branch of the Socialist Youth Corps and a Cultural Book Society which opened a bookstore to propagate revolutionary literature throughout Hunan. He was involved in the movement for Hunan autonomy, in the hope that a Hunanese constitution would increase civil liberties and make his revolutionary activity easier. When the movement was successful in establishing provincial autonomy under a new warlord, Mao forgot his involvement. By 1921, small Marxist groups existed in Shanghai, Beijing, Changsha, Wuhan, Guangzhou, and Jinan; it was decided to hold a central meeting, which began in Shanghai on July 23, 1921. The first session of the National Congress of the Chinese Communist Party was attended by 13 delegates, Mao included. After the authorities sent a police spy to the congress, the delegates moved to a boat on South Lake near Jiaxing, in Zhejiang, to escape detection. Although Soviet and Comintern delegates attended, the first congress ignored Lenin's advice to accept a temporary alliance between the Communists and the "bourgeois democrats" who also advocated national revolution; instead they stuck to the orthodox Marxist belief that only the urban proletariat could lead a socialist revolution. Mao was now party secretary for Hunan stationed in Changsha, and to build the party there he followed a variety of tactics. In August 1921, he founded the Self-Study University, through which readers could gain access to revolutionary literature, housed in the premises of the Society for the Study of Wang Fuzhi, a Qing dynasty Hunanese philosopher who had resisted the Manchus. He joined the YMCA Mass Education Movement to fight illiteracy, though he edited the textbooks to include radical sentiments. He continued organising workers to strike against the administration of Hunan Governor Zhao Hengti. Yet labour issues remained central. The successful and famous (contrary to later Party historians) depended on both "proletarian" and "bourgeois" strategies. Liu Shaoqi and Li Lisan and Mao not only mobilised the miners, but formed schools and cooperatives and engaged local intellectuals, gentry, military officers, merchants, Red Gang dragon heads and even church clergy. Mao claimed that he missed the July 1922 Second Congress of the Communist Party in Shanghai because he lost the address. Adopting Lenin's advice, the delegates agreed to an alliance with the "bourgeois democrats" of the KMT for the good of the "national revolution". Communist Party members joined the KMT, hoping to push its politics leftward. Mao enthusiastically agreed with this decision, arguing for an alliance across China's socio-economic classes. Mao was a vocal anti-imperialist and in his writings he lambasted the governments of Japan, the UK and US, describing the latter as "the most murderous of hangmen". Collaboration with the Kuomintang: 1922–1927 At the Third Congress of the Communist Party in Shanghai in June 1923, the delegates reaffirmed their commitment to working with the KMT. Supporting this position, Mao was elected to the Party Committee, taking up residence in Shanghai. At the First KMT Congress, held in Guangzhou in early 1924, Mao was elected an alternate member of the KMT Central Executive Committee, and put forward four resolutions to decentralise power to urban and rural bureaus. His enthusiastic support for the KMT earned him the suspicion of Li Li-san, his Hunan comrade. In late 1924, Mao returned to Shaoshan, perhaps to recuperate from an illness. He found that the peasantry were increasingly restless and some had seized land from wealthy landowners to found communes. This convinced him of the revolutionary potential of the peasantry, an idea advocated by the KMT leftists but not the Communists. He returned to Guangzhou to run the 6th term of the KMT's Peasant Movement Training Institute from May to September 1926. The Peasant Movement Training Institute under Mao trained cadre and prepared them for militant activity, taking them through military training exercises and getting them to study basic left-wing texts. In the winter of 1925, Mao fled to Guangzhou after his revolutionary activities attracted the attention of Zhao's regional authorities. When party leader Sun Yat-sen died in May 1925, he was succeeded by Chiang Kai-shek, who moved to marginalise the left-KMT and the Communists. Mao nevertheless supported Chiang's National Revolutionary Army, who embarked on the Northern Expedition attack in 1926 on warlords. In the wake of this expedition, peasants rose up, appropriating the land of the wealthy landowners, who were in many cases killed. Such uprisings angered senior KMT figures, who were themselves landowners, emphasising the growing class and ideological divide within the revolutionary movement. In March 1927, Mao appeared at the Third Plenum of the KMT Central Executive Committee in Wuhan, which sought to strip General Chiang of his power by appointing Wang Jingwei leader. There, Mao played an active role in the discussions regarding the peasant issue, defending a set of "Regulations for the Repression of Local Bullies and Bad Gentry", which advocated the death penalty or life imprisonment for anyone found guilty of counter-revolutionary activity, arguing that in a revolutionary situation, "peaceful methods cannot suffice". In April 1927, Mao was appointed to the KMT's five-member Central Land Committee, urging peasants to refuse to pay rent. Mao led another group to put together a "Draft Resolution on the Land Question", which called for the confiscation of land belonging to "local bullies and bad gentry, corrupt officials, militarists and all counter-revolutionary elements in the villages". Proceeding to carry out a "Land Survey", he stated that anyone owning over 30 mou (four and a half acres), constituting 13% of the population, were uniformly counter-revolutionary. He accepted that there was great variation in revolutionary enthusiasm across the country, and that a flexible policy of land redistribution was necessary. Presenting his conclusions at the Enlarged Land Committee meeting, many expressed reservations, some believing that it went too far, and others not far enough. Ultimately, his suggestions were only partially implemented. Civil War Nanchang and Autumn Harvest Uprisings: 1927 Fresh from the success of the Northern Expedition against the warlords, Chiang turned on the Communists, who by now numbered in the tens of thousands across China. Chiang ignored the orders of the Wuhan-based left KMT government and marched on Shanghai, a city controlled by Communist militias. As the Communists awaited Chiang's arrival, he loosed the White Terror, massacring 5000 with the aid of the Green Gang. In Beijing, 19 leading Communists were killed by Zhang Zuolin. That May, tens of thousands of Communists and those suspected of being communists were killed, and the CCP lost approximately of its members. The CCP continued supporting the Wuhan KMT government, a position Mao initially supported, but by the time of the CCP's Fifth Congress he had changed his mind, deciding to stake all hope on the peasant militia. The question was rendered moot when the Wuhan government expelled all Communists from the KMT on July 15. The CCP founded the Workers' and Peasants' Red Army of China, better known as the "Red Army", to battle Chiang. A battalion led by General Zhu De was ordered to take the city of Nanchang on August 1, 1927, in what became known as the Nanchang Uprising. They were initially successful, but were forced into retreat after five days, marching south to Shantou, and from there they were driven into the wilderness of Fujian. Mao was appointed commander-in-chief of the Red Army and led four regiments against Changsha in the Autumn Harvest Uprising, in the hope of sparking peasant uprisings across Hunan. On the eve of the attack, Mao composed a poem—the earliest of his to survive—titled "Changsha". His plan was to attack the KMT-held city from three directions on September 9, but the Fourth Regiment deserted to the KMT cause, attacking the Third Regiment. Mao's army made it to Changsha, but could not take it; by September 15, he accepted defeat and with 1000 survivors marched east to the Jinggang Mountains of Jiangxi. Jung Chang and Jon Halliday claim that the uprising was in fact sabotaged by Mao to allow him to prevent a group of KMT soldiers from defecting to any other CCP leader. Chang and Halliday also claim that Mao talked the other leaders (including Russian diplomats at the Soviet consulate in Changsha who, Chang and Halliday claim, had been controlling much of the CCP activity) into striking only at Changsha, then abandoning it. Chang and Halliday report a view sent to Moscow by the secretary of the Soviet Consulate in Changsha that the retreat was "the most despicable treachery and cowardice." Base in Jinggangshan: 1927–1928 The CCP Central Committee, hiding in Shanghai, expelled Mao from their ranks and from the Hunan Provincial Committee, as punishment for his "military opportunism", for his focus on rural activity, and for being too lenient with "bad gentry". They nevertheless adopted three policies he had long championed: the immediate formation of Workers' councils, the confiscation of all land without exemption, and the rejection of the KMT. Mao's response was to ignore them. He established a base in Jinggangshan City, an area of the Jinggang Mountains, where he united five villages as a self-governing state, and supported the confiscation of land from rich landlords, who were "re-educated" and sometimes executed. He ensured that no massacres took place in the region, and pursued a more lenient approach than that advocated by the Central Committee. He proclaimed that "Even the lame, the deaf and the blind could all come in useful for the revolutionary struggle", he boosted the army's numbers, incorporating two groups of bandits into his army, building a force of around troops. He laid down rules for his soldiers: prompt obedience to orders, all confiscations were to be turned over to the government, and nothing was to be confiscated from poorer peasants. In doing so, he moulded his men into a disciplined, efficient fighting force. In spring 1928, the Central Committee ordered Mao's troops to southern Hunan, hoping to spark peasant uprisings. Mao was skeptical, but complied. They reached Hunan, where they were attacked by the KMT and fled after heavy losses. Meanwhile, KMT troops had invaded Jinggangshan, leaving them without a base. Wandering the countryside, Mao's forces came across a CCP regiment led by General Zhu De and Lin Biao; they united, and attempted to retake Jinggangshan. They were initially successful, but the KMT counter-attacked, and pushed the CCP back; over the next few weeks, they fought an entrenched guerrilla war in the mountains. The Central Committee again ordered Mao to march to south Hunan, but he refused, and remained at his base. Contrastingly, Zhu complied, and led his armies away. Mao's troops fended the KMT off for 25 days while he left the camp at night to find reinforcements. He reunited with the decimated Zhu's army, and together they returned to Jinggangshan and retook the base. There they were joined by a defecting KMT regiment and Peng Dehuai's Fifth Red Army. In the mountainous area they were unable to grow enough crops to feed everyone, leading to food shortages throughout the winter. In 1928, Mao met and married He Zizhen, an 18-year-old revolutionary who would bear him six children. Jiangxi Soviet Republic of China: 1929–1934 In January 1929, Mao and Zhu evacuated the base with 2,000 men and a further 800 provided by Peng, and took their armies south, to the area around Tonggu and Xinfeng in Jiangxi. The evacuation led to a drop in morale, and many troops became disobedient and began thieving; this worried Li Lisan and the Central Committee, who saw Mao's army as lumpenproletariat, that were unable to share in proletariat class consciousness. In keeping with orthodox Marxist thought, Li believed that only the urban proletariat could lead a successful revolution, and saw little need for Mao's peasant guerrillas; he ordered Mao to disband his army into units to be sent out to spread the revolutionary message. Mao replied that while he concurred with Li's theoretical position, he would not disband his army nor abandon his base. Both Li and Mao saw the Chinese revolution as the key to world revolution, believing that a CCP victory would spark the overthrow of global imperialism and capitalism. In this, they disagreed with the official line of the Soviet government and Comintern. Officials in Moscow desired greater control over the CCP and removed Li from power by calling him to Russia for an inquest into his errors. They replaced him with Soviet-educated Chinese Communists, known as the "28 Bolsheviks", two of whom, Bo Gu and Zhang Wentian, took control of the Central Committee. Mao disagreed with the new leadership, believing they grasped little of the Chinese situation, and he soon emerged as their key rival. In February 1930, Mao created the Southwest Jiangxi Provincial Soviet Government in the region under his control. In November, he suffered emotional trauma after his second wife Yang Kaihui and sister were captured and beheaded by KMT general He Jian. Facing internal problems, members of the Jiangxi Soviet accused him of being too moderate, and hence anti-revolutionary. In December, they tried to overthrow Mao, resulting in the Futian incident, during which Mao's loyalists tortured many and executed between 2000 and 3000 dissenters. The CCP Central Committee moved to Jiangxi which it saw as a secure area. In November, it proclaimed Jiangxi to be the Soviet Republic of China, an independent Communist-governed state. Although he was proclaimed Chairman of the Council of People's Commissars, Mao's power was diminished, as his control of the Red Army was allocated to Zhou Enlai. Meanwhile, Mao recovered from tuberculosis. The KMT armies adopted a policy of encirclement and annihilation of the Red armies. Outnumbered, Mao responded with guerrilla tactics influenced by the works of ancient military strategists like Sun Tzu, but Zhou and the new leadership followed a policy of open confrontation and conventional warfare. In doing so, the Red Army successfully defeated the first and second encirclements. Angered at his armies' failure, Chiang Kai-shek personally arrived to lead the operation. He too faced setbacks and retreated to deal with the further Japanese incursions into China. As a result of the KMT's change of focus to the defence of China against Japanese expansionism, the Red Army was able to expand its area of control, eventually encompassing a population of 3 million. Mao proceeded with his land reform program. In November 1931 he announced the start of a "land verification project" which was expanded in June 1933. He also orchestrated education programs and implemented measures to increase female political participation. Chiang viewed the Communists as a greater threat than the Japanese and returned to Jiangxi, where he initiated the fifth encirclement campaign, which involved the construction of a concrete and barbed wire "wall of fire" around the state, which was accompanied by aerial bombardment, to which Zhou's tactics proved ineffective. Trapped inside, morale among the Red Army dropped as food and medicine became scarce. The leadership decided to evacuate. Long March: 1934–1935 On October 14, 1934, the Red Army broke through the KMT line on the Jiangxi Soviet's south-west corner at Xinfeng with soldiers and party cadres and embarked on the "Long March". In order to make the escape, many of the wounded and the ill, as well as women and children, were left behind, defended by a group of guerrilla fighters whom the KMT massacred. The who escaped headed to southern Hunan, first crossing the Xiang River after heavy fighting, and then the Wu River, in Guizhou where they took Zunyi in January 1935. Temporarily resting in the city, they held a conference; here, Mao was elected to a position of leadership, becoming Chairman of the Politburo, and de facto leader of both Party and Red Army, in part because his candidacy was supported by Soviet Premier Joseph Stalin. Insisting that they operate as a guerrilla force, he laid out a destination: the Shenshi Soviet in Shaanxi, Northern China, from where the Communists could focus on fighting the Japanese. Mao believed that in focusing on the anti-imperialist struggle, the Communists would earn the trust of the Chinese people, who in turn would renounce the KMT. From Zunyi, Mao led his troops to Loushan Pass, where they faced armed opposition but successfully crossed the river. Chiang flew into the area to lead his armies against Mao, but the Communists outmanoeuvred him and crossed the Jinsha River. Faced with the more difficult task of crossing the Tatu River, they managed it by fighting a battle over the Luding Bridge in May, taking Luding. Marching through the mountain ranges around Ma'anshan, in Moukung, Western Szechuan, they encountered the -strong CCP Fourth Front Army of Zhang Guotao, and together proceeded to Maoerhkai and then Gansu. Zhang and Mao disagreed over what to do; the latter wished to proceed to Shaanxi, while Zhang wanted to retreat east to Tibet or Sikkim, far from the KMT threat. It was agreed that they would go their separate ways, with Zhu De joining Zhang. Mao's forces proceeded north, through hundreds of kilometres of Grasslands, an area of quagmire where they were attacked by Manchu tribesman and where many soldiers succumbed to famine and disease. Finally reaching Shaanxi, they fought off both the KMT and an Islamic cavalry militia before crossing the Min Mountains and Mount Liupan and reaching the Shenshi Soviet; only 7,000–8000 had survived. The Long March cemented Mao's status as the dominant figure in the party. In November 1935, he was named chairman of the Military Commission. From this point onward, Mao was the Communist Party's undisputed leader, even though he would not become party chairman until 1943. Alliance with the Kuomintang: 1935–1940 Mao's troops arrived at the Yan'an Soviet during October 1935 and settled in Pao An, until spring 1936. While there, they developed links with local communities, redistributed and farmed the land, offered medical treatment, and began literacy programs. Mao now commanded soldiers, boosted by the arrival of He Long's men from Hunan and the armies of Zhu De and Zhang Guotao returned from Tibet. In February 1936, they established the North West Anti-Japanese Red Army University in Yan'an, through which they trained increasing numbers of new recruits. In January 1937, they began the "anti-Japanese expedition", that sent groups of guerrilla fighters into Japanese-controlled territory to undertake sporadic attacks. In May 1937, a Communist Conference was held in Yan'an to discuss the situation. Western reporters also arrived in the "Border Region" (as the Soviet had been renamed); most notable were Edgar Snow, who used his experiences as a basis for Red Star Over China, and Agnes Smedley, whose accounts brought international attention to Mao's cause. On the Long March, Mao's wife He Zizen had been injured by a shrapnel wound to the head. She travelled to Moscow for medical treatment; Mao proceeded to divorce her and marry an actress, Jiang Qing. He Zizhen was reportedly "dispatched to a mental asylum in Moscow to make room" for Qing. Mao moved into a cave-house and spent much of his time reading, tending his garden and theorising. He came to believe that the Red Army alone was unable to defeat the Japanese, and that a Communist-led "government of national defence" should be formed with the KMT and other "bourgeois nationalist" elements to achieve this goal. Although despising Chiang Kai-shek as a "traitor to the nation", on May 5, he telegrammed the Military Council of the Nanking National Government proposing a military alliance, a course of action advocated by Stalin. Although Chiang intended to ignore Mao's message and continue the civil war, he was arrested by one of his own generals, Zhang Xueliang, in Xi'an, leading to the Xi'an Incident; Zhang forced Chiang to discuss the issue with the Communists, resulting in the formation of a United Front with concessions on both sides on December 25, 1937. The Japanese had taken both Shanghai and Nanking (Nanjing)—resulting in the Nanking Massacre, an atrocity Mao never spoke of all his life—and was pushing the Kuomintang government inland to Chungking. The Japanese's brutality led to increasing numbers of Chinese joining the fight, and the Red Army grew from to . In August 1938, the Red Army formed the New Fourth Army and the Eighth Route Army, which were nominally under the command of Chiang's National Revolutionary Army. In August 1940, the Red Army initiated the Hundred Regiments Campaign, in which troops attacked the Japanese simultaneously in five provinces. It was a military success that resulted in the death of Japanese, the disruption of railways and the loss of a coal mine. From his base in Yan'an, Mao authored several texts for his troops, including Philosophy of Revolution, which offered an introduction to the Marxist theory of knowledge; Protracted Warfare, which dealt with guerrilla and mobile military tactics; and New Democracy, which laid forward ideas for China's future. Resuming civil war: 1940–1949 In 1944, the Americans sent a special diplomatic envoy, called the Dixie Mission, to the Chinese Communist Party. The American soldiers who were sent to the mission were favourably impressed. The party seemed less corrupt, more unified, and more vigorous in its resistance to Japan than the Kuomintang. The soldiers confirmed to their superiors that the party was both strong and popular over a broad area. In the end of the mission, the contacts which the USA developed with the Chinese Communist Party led to very little. After the end of World War II, the U.S. continued their diplomatic and military assistance to Chiang Kai-shek and his KMT government forces against the People's Liberation Army (PLA) led by Mao Zedong during the civil war and abandoned the idea of a coalition government which would include the CCP. Likewise, the Soviet Union gave support to Mao by occupying north-eastern China, and secretly giving it to the Chinese communists in March 1946. In 1948, under direct orders from Mao, the People's Liberation Army starved out the Kuomintang forces occupying the city of Changchun. At least civilians are believed to have perished during the siege, which lasted from June until October. PLA lieutenant colonel Zhang Zhenglu, who documented the siege in his book White Snow, Red Blood, compared it to Hiroshima: "The casualties were about the same. Hiroshima took nine seconds; Changchun took five months." On January 21, 1949, Kuomintang forces suffered great losses in decisive battles against Mao's forces. In the early morning of December 10, 1949, PLA troops laid siege to Chongqing and Chengdu on mainland China, and Chiang Kai-shek fled from the mainland to Formosa (Taiwan). Leadership of China Mao proclaimed the establishment of The People's Republic of China from the Gate of Heavenly Peace (Tian'anmen) on October 1, 1949, and later that week declared "The Chinese people have stood up" (). Mao went to Moscow for long talks in the winter of 1949–50. Mao initiated the talks which focused on the political and economic revolution in China, foreign policy, railways, naval bases, and Soviet economic and technical aid. The resulting treaty reflected Stalin's dominance and his willingness to help Mao. Mao pushed the Party to organise campaigns to reform society and extend control. These campaigns were given urgency in October 1950, when Mao made the decision to send the People's Volunteer Army, a special unit of the People's Liberation Army, into the Korean War and fight as well as to reinforce the armed forces of North Korea, the Korean People's Army, which had been in full retreat. The United States placed a trade embargo on the People's Republic as a result of its involvement in the Korean War, lasting until Richard Nixon's improvements of relations. At least 180 thousand Chinese troops died during the war. Mao directed operations to the minutest detail. As the Chairman of the Central Military Commission (CMC), he was also the Supreme Commander in Chief of the PLA and the People's Republic and Chairman of the Party. Chinese troops in Korea were under the overall command of then newly installed Premier Zhou Enlai, with General Peng Dehuai as field commander and political commissar. During the land reform campaigns, large numbers of landlords and rich peasants were beaten to death at mass meetings organised by the Communist Party as land was taken from them and given to poorer peasants, which significantly reduced economic inequality. The Campaign to Suppress Counter-revolutionaries targeted bureaucratic burgeoisie, such as compradores, merchants and Kuomintang officials who were seen by the party as economic parasites or political enemies. In 1976, the U.S. State department estimated as many as a million were killed in the land reform, and killed in the counter-revolutionary campaign. Mao himself claimed that a total of people were killed in attacks on "counter-revolutionaries" during the years 1950–1952. Because there was a policy to select "at least one landlord, and usually several, in virtually every village for public execution", the number of deaths range between 2 million and 5 million. In addition, at least 1.5 million people, perhaps as many as 4 to 6 million, were sent to "reform through labour" camps where many perished. Mao played a personal role in organising the mass repressions and established a system of execution quotas, which were often exceeded. He defended these killings as necessary for the securing of power. The Mao government is credited with eradicating both consumption and production of opium during the 1950s using unrestrained repression and social reform. Ten million addicts were forced into compulsory treatment, dealers were executed, and opium-producing regions were planted with new crops. Remaining opium production shifted south of the Chinese border into the Golden Triangle region. Starting in 1951, Mao initiated two successive movements in an effort to rid urban areas of corruption by targeting wealthy capitalists and political opponents, known as the three-anti/five-anti campaigns. Whereas the three-anti campaign was a focused purge of government, industrial and party officials, the five-anti campaign set its sights slightly broader, targeting capitalist elements in general. Workers denounced their bosses, spouses turned on their spouses, and children informed on their parents; the victims were often humiliated at struggle sessions, where a targeted person would be verbally and physically abused until they confessed to crimes. Mao insisted that minor offenders be criticised and reformed or sent to labour camps, "while the worst among them should be shot". These campaigns took several hundred thousand additional lives, the vast majority via suicide. In Shanghai, suicide by jumping from tall buildings became so commonplace that residents avoided walking on the pavement near skyscrapers for fear that suicides might land on them. Some biographers have pointed out that driving those perceived as enemies to suicide was a common tactic during the Mao-era. In his biography of Mao, Philip Short notes that Mao gave explicit instructions in the Yan'an Rectification Movement that "no cadre is to be killed" but in practice allowed security chief Kang Sheng to drive opponents to suicide and that "this pattern was repeated throughout his leadership of the People's Republic". Following the consolidation of power, Mao launched the First Five-Year Plan (1953–1958), which emphasised rapid industrial development. Within industry, iron and steel, electric power, coal, heavy engineering, building materials, and basic chemicals were prioritised with the aim of constructing large and highly capital-intensive plants. Many of these plants were built with Soviet assistance and heavy industry grew rapily. Agriculture, industry and trade was organised on a collective basis (socialist cooperatives). This period marked the beginning of China's rapid industrialisation and it resulted in an enormous success. The success of the First-Five Year Plan encouraged Mao to instigate the Second Five-Year Plan in 1958. During this period, industrial output value doubled; the gross value of agricultural products increased by 35 percent; steel production in 1962 was between 10.6 million tons or 12 million tons; investment in capital construction rose 5 percent; investment in capital construction was doubled and the average income of workers and farmers increased by up to 30 percent. Programs pursued during this time include the Hundred Flowers Campaign, in which Mao indicated his supposed willingness to consider different opinions about how China should be governed. Given the freedom to express themselves, liberal and intellectual Chinese began opposing the Communist Party and questioning its leadership. This was initially tolerated and encouraged. After a few months, Mao's government reversed its policy and persecuted those who had criticised the party, totalling perhaps , as well as those who were merely alleged to have been critical, in what is called the Anti-Rightist Movement. Authors such as Jung Chang have alleged that the Hundred Flowers Campaign was merely a ruse to root out "dangerous" thinking. Li Zhisui, Mao's physician, suggested that Mao had initially seen the policy as a way of weakening opposition to him within the party and that he was surprised by the extent of criticism and the fact that it came to be directed at his own leadership. Great Leap Forward In January 1958, Mao launched the second Five-Year Plan, known as the Great Leap Forward, a plan intended to turn China from an agrarian nation to an industrialised one and as an alternative model for economic growth to the Soviet model focusing on heavy industry that was advocated by others in the party. Under this economic program, the relatively small agricultural collectives that had been formed to date were rapidly merged into far larger people's communes, and many of the peasants were ordered to work on massive infrastructure projects and on the production of iron and steel. Some private food production was banned, and livestock and farm implements were brought under collective ownership. Under the Great Leap Forward, Mao and other party leaders ordered the implementation of a variety of unproven and unscientific new agricultural techniques by the new communes. The combined effect of the diversion of labour to steel production and infrastructure projects, and cyclical natural disasters led to an approximately 15% drop in grain production in 1959 followed by a further 10% decline in 1960 and no recovery in 1961. In an effort to win favour with their superiors and avoid being purged, each layer in the party exaggerated the amount of grain produced under them. Based upon the falsely reported success, party cadres were ordered to requisition a disproportionately high amount of that fictitious harvest for state use, primarily for use in the cities and urban areas but also for export. The result, compounded in some areas by drought and in others by floods, was that farmers were left with little food for themselves and many millions starved to death in the Great Chinese Famine. The people of urban areas in China were given food stamps each month, but the people of rural areas were expected to grow their own crops and give some of the crops back to the government. The death count in rural parts of China surpassed the deaths in the urban centers. Additionally, the Chinese government continued to export food that could have been allocated to the country's starving citizens. The famine was a direct cause of the death of some 30 million Chinese peasants between 1959 and 1962. Furthermore, many children who became malnourished during years of hardship died after the Great Leap Forward came to an end in 1962. The extent of Mao's knowledge of the severity of the situation has been disputed. Mao's physician believed that he may have been unaware of the extent of the famine, partly due to a reluctance of local officials to criticise his policies, and the willingness of his staff to exaggerate or outright fake reports. Upon learning of the extent of the starvation, Mao vowed to stop eating meat, an action followed by his staff. Hong Kong-based historian Frank Dikötter, in his book Mao's Great Famine, challenged the notion that Mao did not know about the famine throughout the country until it was too late as "largely a myth—at most partially true for the autumn of 1958 only." At a secret meeting in the Jinjiang Hotel in Shanghai dated March 25, 1959, Dikötter continues, Mao specifically ordered the party to procure up to one third of all the grain, and announced that "To distribute resources evenly will only ruin the Great Leap Forward. When there is not enough to eat, people starve to death. It is better to let half of the people die so that the other half can eat their fill." Thomas P. Bernstein of Columbia University offered his view that Mao's statement in the March 25, 1959, meeting was "an instance of Mao's use of hyperbole, another being his casual acceptance of death of half the population during a nuclear war." In other contexts, Bernstein went on, Mao did not in fact accept mass death. In October 1958, Mao expressed real concern that 40,000 people in Yunnan had starved to death and shortly after the March 25 meeting, he worried about 25.2 million people who were at risk of starvation. From late summer on, Mao forgot about this issue until the Xinyang Incident came to light in October 1960. Anthony Garnaut says that Dikötter's juxtaposition and sampling techniques fall short of academic best practice. He also posits that Dikötter's interpretation of Mao's quotation ("It is better to let half of the people die so that the other half can eat their fill") not only ignores the substantial commentary on the conference by other scholars and several of its key participants but defies the very plain wording of the archival document in his possession on which he hangs his case. There is a discussion about Dikötter's misuse of Mao's quotation in H-Net. In late autumn 1958, Mao condemned cadres for tactics such as requiring exhausting labour acknowledge that anti-rightist pressures were a major cause of "production at the expense of livelihood." He refused to abandon the GLF to solve these difficulties, but he did demand that they be confronted. After the July 1959 clash at Lushan Conference with Peng Dehuai, Mao launched a new anti-rightist campaign along with the radical policies that he previously abandoned. Mao expressed concern about abnormal deaths and other abuses in the spring of 1960, but did not move to stop them. Bernstein concludes that the Chairman "wilfully ignored the lessons of the first radical phase for the sake of achieving extreme ideological and developmental goals". Jasper Becker notes that Mao was dismissive of reports he received of food shortages in the countryside and refused to change course, believing that peasants were lying and that rightists and kulaks were hoarding grain. He refused to open state granaries, and instead launched a series of "anti-grain concealment" drives that resulted in numerous purges and suicides. Other violent campaigns followed in which party leaders went from village to village in search of hidden food reserves, and not only grain, as Mao issued quotas for pigs, chickens, ducks and eggs. Many peasants accused of hiding food were tortured and beaten to death. Mao stepped down as President of China on April 27, 1959; however, he retained other top positions such as Chairman of the Communist Party and of the Central Military Commission. The Presidency was transferred to Liu Shaoqi. He was eventually forced to abandon the policy in 1962, and he lost political power to Liu Shaoqi and Deng Xiaoping. The Great Leap Forward was a tragedy for the vast majority of the Chinese. Although the steel quotas were officially reached, almost all of the supposed steel made in the countryside was iron, as it had been made from assorted scrap metal in home-made furnaces with no reliable source of fuel such as coal. This meant that proper smelting conditions could not be achieved. According to Zhang Rongmei, a geometry teacher in rural Shanghai during the Great Leap Forward: "We took all the furniture, pots, and pans we had in our house, and all our neighbours did likewise. We put everything in a big fire and melted down all the metal". The worst of the famine was steered towards enemies of the state. Jasper Becker explains: "The most vulnerable section of China's population, around five percent, were those whom Mao called 'enemies of the people'. Anyone who had in previous campaigns of repression been labeled a 'black element' was given the lowest priority in the allocation of food. Landlords, rich peasants, former members of the nationalist regime, religious leaders, rightists, counter-revolutionaries and the families of such individuals died in the greatest numbers." At a large Communist Party conference in Beijing in January 1962, dubbed the "Seven Thousand Cadres Conference", State Chairman Liu Shaoqi denounced the Great Leap Forward, attributing the project to widespread famine in China. The overwhelming majority of delegates expressed agreement, but Defense Minister Lin Biao staunchly defended Mao. A brief period of liberalisation followed while Mao and Lin plotted a comeback. Liu Shaoqi and Deng Xiaoping rescued the economy by disbanding the people's communes, introducing elements of private control of peasant smallholdings and importing grain from Canada and Australia to mitigate the worst effects of famine. Consequences At the Lushan Conference in July/August 1959, several ministers expressed concern that the Great Leap Forward had not proved as successful as planned. The most direct of these was Minister of Defence and Korean War veteran General Peng Dehuai. Following Peng's criticism of the Great Leap Forward, Mao orchestrated a purge of Peng and his supporters, stifling criticism of the Great Leap policies. Senior officials who reported the truth of the famine to Mao were branded as "right opportunists." A campaign against right-wing opportunism was launched and resulted in party members and ordinary peasants being sent to prison labour camps where many would subsequently die in the famine. Years later the CCP would conclude that as many as six million people were wrongly punished in the campaign. The number of deaths by starvation during the Great Leap Forward is deeply controversial. Until the mid-1980s, when official census figures were finally published by the Chinese Government, little was known about the scale of the disaster in the Chinese countryside, as the handful of Western observers allowed access during this time had been restricted to model villages where they were deceived into believing that the Great Leap Forward had been a great success. There was also an assumption that the flow of individual reports of starvation that had been reaching the West, primarily through Hong Kong and Taiwan, must have been localised or exaggerated as China was continuing to claim record harvests and was a net exporter of grain through the period. Because Mao wanted to pay back early to the Soviets debts totalling 1.973 billion yuan from 1960 to 1962, exports increased by 50%, and fellow Communist regimes in North Korea, North Vietnam and Albania were provided grain free of charge. Censuses were carried out in China in 1953, 1964 and 1982. The first attempt to analyse this data to estimate the number of famine deaths was carried out by American demographer Dr. Judith Banister and published in 1984. Given the lengthy gaps between the censuses and doubts over the reliability of the data, an accurate figure is difficult to ascertain. Nevertheless, Banister concluded that the official data implied that around 15 million excess deaths incurred in China during 1958–61, and that based on her modelling of Chinese demographics during the period and taking account of assumed under-reporting during the famine years, the figure was around 30 million. The official statistic is 20 million deaths, as given by Hu Yaobang. Yang Jisheng, a former Xinhua News Agency reporter who had privileged access and connections available to no other scholars, estimates a death toll of 36 million. Frank Dikötter estimates that there were at least 45 million premature deaths attributable to the Great Leap Forward from 1958 to 1962. Various other sources have put the figure at between 20 and 46 million. Split from Soviet Union On the international front, the period was dominated by the further isolation of China. The Sino-Soviet split resulted in Nikita Khrushchev's withdrawal of all Soviet technical experts and aid from the country. The split concerned the leadership of world communism. The USSR had a network of Communist parties it supported; China now created its own rival network to battle it out for local control of the left in numerous countries. Lorenz M. Lüthi writes: "The Sino-Soviet split was one of the key events of the Cold War, equal in importance to the construction of the Berlin Wall, the Cuban Missile Crisis, the Second Vietnam War, and Sino-American rapprochement. The split helped to determine the framework of the Second Cold War in general, and influenced the course of the Second Vietnam War in particular." The split resulted from Nikita Khrushchev's more moderate Soviet leadership after the death of Stalin in March 1953. Only Albania openly sided with China, thereby forming an alliance between the two countries which would last until after Mao's death in 1976. Warned that the Soviets had nuclear weapons, Mao minimised the threat. Becker says that "Mao believed that the bomb was a 'paper tiger', declaring to Khrushchev that it would not matter if China lost 300 million people in a nuclear war: the other half of the population would survive to ensure victory". Struggle against Soviet revisionism and U.S imperialism was an important aspect of Mao's attempt to direct the revolution in the right direction. Great Proletarian Cultural Revolution During the early 1960s, Mao became concerned with the nature of post-1959 China. He saw that the revolution and Great Leap Forward had replaced the old ruling elite with a new one. He was concerned that those in power were becoming estranged from the people they were to serve. Mao believed that a revolution of culture would unseat and unsettle the "ruling class" and keep China in a state of "perpetual revolution" that, theoretically, would serve the interests of the majority, rather than a tiny and privileged elite. State Chairman Liu Shaoqi and General Secretary Deng Xiaoping favoured the idea that Mao be removed from actual power as China's head of state and government but maintain his ceremonial and symbolic role as Chairman of the Chinese Communist Party, with the party upholding all of his positive contributions to the revolution. They attempted to marginalise Mao by taking control of economic policy and asserting themselves politically as well. Many claim that Mao responded to Liu and Deng's movements by launching the Great Proletarian Cultural Revolution in 1966. Some scholars, such as Mobo Gao, claim the case for this is overstated. Others, such as Frank Dikötter, hold that Mao launched the Cultural Revolution to wreak revenge on those who had dared to challenge him over the Great Leap Forward. Believing that certain liberal bourgeois elements of society continued to threaten the socialist framework, groups of young people known as the Red Guards struggled against authorities at all levels of society and even set up their own tribunals. Chaos reigned in much of the nation, and millions were persecuted. During the Cultural Revolution, nearly all of the schools and universities in China were closed, and the young intellectuals living in cities were ordered to the countryside to be "re-educated" by the peasants, where they performed hard manual labour and other work. The Cultural Revolution led to the destruction of much of China's traditional cultural heritage and the imprisonment of a huge number of Chinese citizens, as well as the creation of general economic and social chaos in the country. Millions of lives were ruined during this period, as the Cultural Revolution pierced into every part of Chinese life, depicted by such Chinese films as To Live, The Blue Kite and Farewell My Concubine. It is estimated that hundreds of thousands of people, perhaps millions, perished in the violence of the Cultural Revolution. This included prominent figures such as Liu Shaoqi. When Mao was informed of such losses, particularly that people had been driven to suicide, he is alleged to have commented: "People who try to commit suicide—don't attempt to save them! ... China is such a populous nation, it is not as if we cannot do without a few people." The authorities allowed the Red Guards to abuse and kill opponents of the regime. Said Xie Fuzhi, national police chief: "Don't say it is wrong of them to beat up bad persons: if in anger they beat someone to death, then so be it." In August and September 1966, there were a reported 1,772 people murdered by the Red Guards in Beijing alone. It was during this period that Mao chose Lin Biao, who seemed to echo all of Mao's ideas, to become his successor. Lin was later officially named as Mao's successor. By 1971, a divide between the two men had become apparent. Official history in China states that Lin was planning a military coup or an assassination attempt on Mao. Lin Biao died on September 13, 1971, in a plane crash over the air space of Mongolia, presumably as he fled China, probably anticipating his arrest. The CCP declared that Lin was planning to depose Mao and posthumously expelled Lin from the party. At this time, Mao lost trust in many of the top CCP figures. The highest-ranking Soviet Bloc intelligence defector, Lt. Gen. Ion Mihai Pacepa claimed he had a conversation with Nicolae Ceaușescu, who told him about a plot to kill Mao Zedong with the help of Lin Biao organised by the KGB. Despite being considered a feminist figure by some and a supporter of women's rights, documents released by the US Department of State in 2008 show that Mao declared women to be a "nonsense" in 1973, in conversation with Henry Kissinger, joking that "China is a very poor country. We don't have much. What we have in excess is women. ... Let them go to your place. They will create disasters. That way you can lessen our burdens." When Mao offered 10 million women, Kissinger replied by saying that Mao was "improving his offer". Mao and Kissinger then agreed that their comments on women be removed from public records, prompted by a Chinese official who feared that Mao's comments might incur public anger if released. In 1969, Mao declared the Cultural Revolution to be over, although various historians in and outside of China mark the end of the Cultural Revolution—as a whole or in part—in 1976, following Mao's death and the arrest of the Gang of Four. The Central Committee in 1981 officially declared the Cultural Revolution a "severe setback" for the PRC. It is often looked at in all scholarly circles as a greatly disruptive period for China. Despite the pro-poor rhetoric of Mao's regime, his economic policies led to substantial poverty. Some scholars, such as Lee Feigon and Mobo Gao, claim there were many great advances, and in some sectors the Chinese economy continued to outperform the West. Estimates of the death toll during the Cultural Revolution, including civilians and Red Guards, vary greatly. An estimate of around 400,000 deaths is a widely accepted minimum figure, according to Maurice Meisner. MacFarquhar and Schoenhals assert that in rural China alone some 36 million people were persecuted, of whom between 750,000 and 1.5 million were killed, with roughly the same number permanently injured. In Mao: The Unknown Story, Jung Chang and Jon Halliday claim that as many as 3 million people died in the violence of the Cultural Revolution. Historian Daniel Leese writes that in the 1950s Mao's personality was hardening: "The impression of Mao's personality that emerges from the literature is disturbing. It reveals a certain temporal development from a down-to-earth leader, who was amicable when uncontested and occasionally reflected on the limits of his power, to an increasingly ruthless and self-indulgent dictator. Mao's preparedness to accept criticism decreased continuously." State visits During his leadership, Mao travelled outside China on only two occasions, both state visits to the Soviet Union. His first visit abroad was to celebrate the 70th birthday of Soviet leader Joseph Stalin, which was also attended by East German Deputy Chairman of the Council of Ministers Walter Ulbricht and Mongolian communist General Secretary Yumjaagiin Tsedenbal. The second visit to Moscow was a two-week state visit of which the highlights included Mao's attendance at the 40th anniversary (Ruby Jubilee) celebrations of the October Revolution (he attended the annual military parade of the Moscow Garrison on Red Square as well as a banquet in the Moscow Kremlin) and the International Meeting of Communist and Workers Parties, where he met with other communist leaders such as North Korea's Kim Il-Sung and Albania's Enver Hoxha. When Mao stepped down as head of state on April 27, 1959, further diplomatic state visits and travels abroad were undertaken by President Liu Shaoqi, Premier Zhou Enlai and Deputy Premier Deng Xiaoping rather than Mao personally. Death and aftermath Mao's health declined in his last years, probably aggravated by his chain-smoking. It became a state secret that he suffered from multiple lung and heart ailments during his later years. There are unconfirmed reports that he possibly had Parkinson's disease in addition to amyotrophic lateral sclerosis, also known as Lou Gehrig's disease. His final public appearance—and the last known photograph of him alive—had been on May 27, 1976, when he met the visiting Pakistani Prime Minister Zulfikar Ali Bhutto. He suffered two major heart attacks, one in March and another in July, then a third on September 5, rendering him an invalid. He died nearly four days later, at 00:10 on September 9, 1976, at the age of 82. The Communist Party delayed the announcement of his death until 16:00, when a national radio broadcast announced the news and appealed for party unity. Mao's embalmed body, draped in the CCP flag, lay in state at the Great Hall of the People for one week. One million Chinese filed past to pay their final respects, many crying openly or displaying sadness, while foreigners watched on television. Mao's official portrait hung on the wall with a banner reading: "Carry on the cause left by Chairman Mao and carry on the cause of proletarian revolution to the end". On September 17 the body was taken in a minibus to the 305 Hospital, where his internal organs were preserved in formaldehyde. On September 18, guns, sirens, whistles and horns across China were simultaneously blown and a mandatory three-minute silence was observed. Tiananmen Square was packed with millions of people and a military band played "The Internationale". Hua Guofeng concluded the service with a 20-minute-long eulogy atop Tiananmen Gate. Despite Mao's request to be cremated, his body was later permanently put on display in the Mausoleum of Mao Zedong, in order for the Chinese nation to pay its respects. Legacy Mao remains a controversial figure and there is little agreement over his legacy both in China and abroad. He is regarded as one of the most important and influential individuals in the twentieth century. He is also known as a political intellect, theorist, military strategist, poet, and visionary. He was credited and praised for driving imperialism out of China, having unified China and for ending the previous decades of civil war. He is also credited with having improved the status of women in China and for improving literacy and education. In December 2013, a poll from the state-run Global Times indicated that roughly 85% of the 1,045 respondents surveyed felt that Mao's achievements outweighed his mistakes. His policies resulted in the deaths of tens of millions of people in China during his 27-year reign, more than any other 20th-century leader; estimates of the number of people who died under his regime range from 40 million to as many as 80 million, done through starvation, persecution, prison labour in Laogai, and mass executions. Mao rarely gave direct instruction for peoples' physical elimination. According to biographer Philip Short, the overwhelming majority of those whom Mao's policies killed were unintended casualties of famine. The others – three or four million – were the human detritus of his epic struggle to transform China. In spite of such shortcomings, life expectancy, education, and healthcare improved during his period of rule, and he rapidly industrialised China; however, some have claimed that his policies, such as the Great Leap Forward and the Great Proletarian Cultural Revolution, were impediments to industrialisation and modernisation. His policies laid the groundwork for China's later rise to become an economic superpower, while some state that his policies delayed economic development and that China's economy underwent its rapid growth only after Mao's policies had been widely abandoned. China's population grew from around 550 million to over 900 million under his rule while the government did not strictly enforce its family planning policy, leading his successors such as Deng Xiaoping to take a strict one-child policy to cope with the human overpopulation. Mao's revolutionary tactics continue to be used by insurgents, and his political ideology continues to be embraced by many Communist organisations around the world. In mainland China, Mao is revered by many members and supporters of the Communist Party and respected by a great number of the general population as the "Founding Father of modern China", credited for "giving the Chinese people dignity and self-respect." Mobo Gao, in his 2008 book The Battle for China's Past: Mao and the Cultural Revolution, credits him for raising the average life expectancy from 35 in 1949 to 63 by 1975, bringing "unity and stability to a country that had been plagued by civil wars and foreign invasions", and laying the foundation for China to "become the equal of the great global powers". Gao also lauds him for carrying out massive land reform, promoting the status of women, improving popular literacy, and positively "transform(ing) Chinese society beyond recognition." Mao is credited for boosting literacy (only 20% of the population could read in 1949, compared to 65.5% thirty years later), doubling life expectancy, a near doubling of the population, and developing China's industry and infrastructure, paving the way for its position as a world power. Mao also has Chinese critics. Opposition to him can lead to censorship or professional repercussions in mainland China, and is often done in private settings such as the Internet. When a video of Bi Fujian insulting him at a private dinner in 2015 went viral, Bi garnered the support of Weibo users, with 80% of them said in a poll that Bi shouldn't apologize amidst backlash from state affiliates. In the West, Mao has a bad reputation. He is known for the deaths during the Great Leap Forward and for persecutions during the Cultural Revolution. Chinese citizens are aware of Mao's mistakes, but nonetheless, many see Mao as a national hero. He is seen as someone who successfully liberated the country from Japanese occupation and from Western imperialist exploitation dating back to the Opium Wars. A 2019 study showed that a sizeable amount of the Chinese population, when asked about the Maoist era, described a world of purity and simplicity, where life had clear meaning, people trusted and helped one another and inequality was minimal. According to the study, older people felt some degree of nostalgia for the past and expressed support for Mao even while acknowledging negative experiences. Though the Chinese Communist Party, which Mao led to power, has rejected in practice the economic fundamentals of much of Mao's ideology, it retains for itself many of the powers established under Mao's reign: it controls the Chinese army, police, courts and media and does not permit multi-party elections at the national or local level, except in Hong Kong and Macau. Thus it is difficult to gauge the true extent of support for the Chinese Communist Party and Mao's legacy within mainland China. For its part, the Chinese government continues to officially regard Mao as a national hero. On December 25, 2008, China opened the Mao Zedong Square to visitors in his home town of central Hunan Province to mark the 115th anniversary of his birth. There continue to be disagreements on Mao's legacy. Former party official Su Shachi has opined that "he was a great historical criminal, but he was also a great force for good." In a similar vein, journalist Liu Binyan has described Mao as "both monster and a genius." Some historians argue that Mao was "one of the great tyrants of the twentieth century", and a dictator comparable to Adolf Hitler and Joseph Stalin, with a death toll surpassing both. In The Black Book of Communism, Jean Louis Margolin writes that "Mao Zedong was so powerful that he was often known as the Red Emperor. ... the violence he erected into a whole system far exceeds any national tradition of violence that we might find in China." Mao was frequently likened to the First Emperor of a unified China, Qin Shi Huang, and personally enjoyed the comparison. During a speech to party cadre in 1958, Mao said he had far outdone Qin Shi Huang in his policy against intellectuals: "What did he amount to? He only buried alive 460 scholars, while we buried 46,000. In our suppression of the counter-revolutionaries, did we not kill some counter-revolutionary intellectuals? I once debated with the democratic people: You accuse us of acting like Ch'in-shih-huang, but you are wrong; we surpass him 100 times." As a result of such tactics, critics have compared it to Nazi Germany. Others, such as Philip Short in Mao: A Life, reject comparisons by saying that whereas the deaths caused by Nazi Germany and Soviet Russia were largely systematic and deliberate, the overwhelming majority of the deaths under Mao were unintended consequences of famine. Short stated that landlord class were not exterminated as a people due to Mao's belief in redemption through thought reform, and compared Mao with 19th-century Chinese reformers who challenged China's traditional beliefs in the era of China's clashes with Western colonial powers. Short writes that "Mao's tragedy and his grandeur were that he remained to the end in thrall to his own revolutionary dreams. ... He freed China from the straitjacket of its Confucian past, but the bright Red future he promised turned out to be a sterile purgatory. In their 2013 biography, Mao: The Real Story, Alexander V. Pantsov and Steven I. Levine assert that Mao was both "a successful creator and ultimately an evil destroyer" but also argue that he was a complicated figure who should not be lionised as a saint or reduced to a demon, as he "indeed tried his best to bring about prosperity and gain international respect for his country." Mao's English interpreter Sidney Rittenberg wrote in his memoir The Man Who Stayed Behind that whilst Mao "was a great leader in history", he was also "a great criminal because, not that he wanted to, not that he intended to, but in fact, his wild fantasies led to the deaths of tens of millions of people." In their book Mao: The Unknown Story, which is highly discredited in academia, Jung Chang and Jon Halliday take a very critical view of Mao's life and influence. They say that Mao was well aware that his policies would be responsible for the deaths of millions. While discussing labour-intensive projects such as waterworks and making steel, Mao said to his inner circle in November 1958: "Working like this, with all these projects, half of China may well have to die. If not half, one-third, or one-tenth—50 million—die." Thomas Bernstein of Columbia University responds that this quotation is taken out of context. Dikötter argues that CCP leaders "glorified violence and were inured to massive loss of life. And all of them shared an ideology in which the end justified the means. In 1962, having lost millions of people in his province, Li Jingquan compared the Great Leap Forward to the Long March in which only one in ten had made it to the end: 'We are not weak, we are stronger, we have kept the backbone. Regarding the large-scale irrigation projects, Dikötter stresses that, in spite of Mao being in a good position to see the human cost, they continued unabated for several years, and ultimately claimed the lives of hundreds of thousands of exhausted villagers. He also writes: "In a chilling precursor of Cambodia under the Khmer Rouge, villagers in Qingshui and Gansu called these projects the 'killing fields. The United States placed a trade embargo on the People's Republic as a result of its involvement in the Korean War, lasting until Richard Nixon decided that developing relations with the PRC would be useful in dealing with the Soviet Union. The television series Biography stated: "[Mao] turned China from a feudal backwater into one of the most powerful countries in the World. ... The Chinese system he overthrew was backward and corrupt; few would argue the fact that he dragged China into the 20th century. But at a cost in human lives that is staggering." In the book China in the 21st Century: What Everyone Needs to Know published in 2010, Professor Jeffrey Wasserstrom of the University of California, Irvine compares China's relationship to Mao to Americans' remembrance of Andrew Jackson; both countries regard the leaders in a positive light, despite their respective roles in devastating policies. Jackson forcibly moved Native Americans through the Trail of Tears, resulting in thousands of deaths, while Mao was at the helm during the violent years of the Cultural Revolution and the Great Leap Forward. The ideology of Maoism has influenced many Communists, mainly in the Third World, including revolutionary movements such as Cambodia's Khmer Rouge, Peru's Shining Path, and the Nepalese revolutionary movement. Under the influence of Mao's agrarian socialism and Cultural Revolution, Cambodia's Pol Pot conceived of his disastrous Year Zero policies which purged the nation of its teachers, artists and intellectuals and emptied its cities, resulting in the Cambodian genocide. The Revolutionary Communist Party, USA, also claims Marxism–Leninism-Maoism as its ideology, as do other Communist Parties around the world which are part of the Revolutionary Internationalist Movement. China itself has moved sharply away from Maoism since Mao's death, and most people outside of China who describe themselves as Maoist regard the Deng Xiaoping reforms to be a betrayal of Maoism, in line with Mao's view of "Capitalist roaders" within the Communist Party. As the Chinese government instituted free market economic reforms starting in the late 1970s and as later Chinese leaders took power, less recognition was given to the status of Mao. This accompanied a decline in state recognition of Mao in later years in contrast to previous years when the state organised numerous events and seminars commemorating Mao's 100th birthday. Nevertheless, the Chinese government has never officially repudiated the tactics of Mao. Deng Xiaoping, who was opposed to the Great Leap Forward and the Cultural Revolution, stated that "when we write about his mistakes we should not exaggerate, for otherwise we shall be discrediting Chairman Mao Zedong and this would mean discrediting our party and state." Mao's military writings continue to have a large amount of influence both among those who seek to create an insurgency and those who seek to crush one, especially in manners of guerrilla warfare, at which Mao is popularly regarded as a genius. The Nepali Maoists were highly influenced by Mao's views on protracted war, new democracy, support of masses, permanency of revolution and the Great Proletarian Cultural Revolution. Mao's major contribution to the military science is his theory of People's War, with not only guerrilla warfare but more importantly, Mobile Warfare methodologies. Mao had successfully applied Mobile Warfare in the Korean War, and was able to encircle, push back and then halt the UN forces in Korea, despite the clear superiority of UN firepower. In 1957, Mao also gave the impression that he might even welcome a nuclear war. Mao's poems and writings are frequently cited by both Chinese and non-Chinese. The official Chinese translation of President Barack Obama's inauguration speech used a famous line from one of Mao's poems. In the mid-1990s, Mao's picture began to appear on all new renminbi currency from the People's Republic of China. This was officially instituted as an anti-counterfeiting measure as Mao's face is widely recognised in contrast to the generic figures that appear in older currency. On March 13, 2006, a story in the People's Daily reported that a proposal had been made to print the portraits of Sun Yat-sen and Deng Xiaoping. Public image Mao gave contradicting statements on the subject of personality cults. In 1955, as a response to the Khrushchev Report that criticised Joseph Stalin, Mao stated that personality cults are "poisonous ideological survivals of the old society", and reaffirmed China's commitment to collective leadership. At the 1958 party congress in Chengdu, Mao expressed support for the personality cults of people whom he labelled as genuinely worthy figures, not those that expressed "blind worship". In 1962, Mao proposed the Socialist Education Movement (SEM) in an attempt to educate the peasants to resist the "temptations" of feudalism and the sprouts of capitalism that he saw re-emerging in the countryside from Liu's economic reforms. Large quantities of politicised art were produced and circulated—with Mao at the centre. Numerous posters, badges, and musical compositions referenced Mao in the phrase "Chairman Mao is the red sun in our hearts" () and a "Savior of the people" (). In October 1966, Mao's Quotations from Chairman Mao Tse-tung, known as the Little Red Book, was published. Party members were encouraged to carry a copy with them, and possession was almost mandatory as a criterion for membership. According to Mao: The Unknown Story by Jun Yang, the mass publication and sale of this text contributed to making Mao the only millionaire created in 1950s China (332). Over the years, Mao's image became displayed almost everywhere, present in homes, offices and shops. His quotations were typographically emphasised by putting them in boldface or red type in even the most obscure writings. Music from the period emphasised Mao's stature, as did children's rhymes. The phrase "Long Live Chairman Mao for ten thousand years" was commonly heard during the era. Mao also has a presence in China and around the world in popular culture, where his face adorns everything from T-shirts to coffee cups. Mao's granddaughter, Kong Dongmei, defended the phenomenon, stating that "it shows his influence, that he exists in people's consciousness and has influenced several generations of Chinese people's way of life. Just like Che Guevara's image, his has become a symbol of revolutionary culture." Since 1950, over 40 million people have visited Mao's birthplace in Shaoshan, Hunan. A 2016 survey by YouGov survey found that 42% of American millennials have never heard of Mao. According to the CIS poll, in 2019 only 21% of Australian millennials were familiar with Mao Zedong. In 2020s China, members of Generation Z are embracing Mao's revolutionary ideas, including violence against the capitalist class, amid rising social inequality, long working hours, and decreasing economic opportunities. Genealogy Ancestors Mao's ancestors were: (, born Xiangtan October 15, 1870, died Shaoshan January 23, 1920), father, courtesy name () or also known as Mao Jen-sheng (, born Xiangxiang 1867, died October 5, 1919), mother. She was illiterate and a devout Buddhist. She was a descendant of Wen Tianxiang. (, born May 22, 1846, died November 23, 1904), paternal grandfather (, given name not recorded, born 1847, died May 20, 1884), paternal grandmother (), paternal great-grandfather Wives Mao had four wives who gave birth to a total of 10 children, among them: Luo Yixiu (October 20, 1889 – 1910) of Shaoshan: married 1907 to 1910 Yang Kaihui (1901–1930) of Changsha: married 1921 to 1927, executed by the KMT in 1930; mother to Mao Anying, Mao Anqing, and Mao Anlong He Zizhen (1910–1984) of Jiangxi: married May 1928 to 1937; mother to 6 children Jiang Qing (1914–1991), married 1939 until Mao's death; mother to Li Na Siblings Mao had several siblings: Mao Zemin (1895–1943), younger brother, executed by a warlord Mao Zetan (1905–1935), younger brother, executed by the KMT Mao Zejian (1905–1929), adopted sister, executed by the KMT Mao's parents altogether had five sons and two daughters. Two of the sons and both daughters died young, leaving the three brothers Mao Zedong, Mao Zemin, and Mao Zetan. Like all three of Mao Zedong's wives, Mao Zemin and Mao Zetan were communists. Like Yang Kaihui, both Mao Zemin and Mao Zetan were killed in warfare during Mao Zedong's lifetime. Note that the character zé () appears in all of the siblings' given names; this is a common Chinese naming convention. From the next generation, Mao Zemin's son Mao Yuanxin was raised by Mao Zedong's family, and he became Mao Zedong's liaison with the Politburo in 1975. In Li Zhisui's The Private Life of Chairman Mao, Mao Yuanxin played a role in the final power-struggles. Children Mao had a total of ten children, including: Mao Anying (1922–1950): son to Yang, married to (), killed in action during the Korean War Mao Anqing (1923–2007): son to Yang, married to Shao Hua, son Mao Xinyu, grandson Mao Dongdong Mao Anlong (1927–1931): son to Yang, died during the Chinese Civil War Mao Anhong: son to He, left to Mao's younger brother Zetan and then to one of Zetan's guards when he went off to war, was never heard of again Li Min (b. 1936): daughter to He, married to (), son (), daughter () Li Na (b. 1940): daughter to Jiang (whose birth surname was Lǐ, a name also used by Mao while evading the KMT), married to (), son () Mao's first and second daughters were left to local villagers because it was too dangerous to raise them while fighting the Kuomintang and later the Japanese. Their youngest daughter (born in early 1938 in Moscow after Mao separated) and one other child (born 1933) died in infancy. Two English researchers who retraced the entire Long March route in 2002–2003 located a woman whom they believe might well be one of the missing children abandoned by Mao to peasants in 1935. Ed Jocelyn and Andrew McEwen hope a member of the Mao family will respond to requests for a DNA test. Through his ten children, Mao became grandfather to twelve grandchildren, many of whom he never knew. He has many great-grandchildren alive today. One of his granddaughters is businesswoman Kong Dongmei, one of the richest people in China. His grandson Mao Xinyu is a general in the Chinese army. Both he and Kong have written books about their grandfather. Personal life Mao's private life was kept very secret at the time of his rule. After Mao's death, Li Zhisui, his personal physician, published The Private Life of Chairman Mao, a memoir which mentions some aspects of Mao's private life, such as chain-smoking cigarettes, addiction to powerful sleeping pills and large number of sexual partners. Some scholars and some other people who also personally knew and worked with Mao have disputed the accuracy of these characterisations. Having grown up in Hunan, Mao spoke Mandarin with a marked Hunanese accent. Ross Terrill wrote Mao was a "son of the soil ... rural and unsophisticated" in origins, while Clare Hollingworth said that Mao was proud of his "peasant ways and manners", having a strong Hunanese accent and providing "earthy" comments on sexual matters. Lee Feigon said that Mao's "earthiness" meant that he remained connected to "everyday Chinese life." Sinologist Stuart Schram emphasised Mao's ruthlessness but also noted that he showed no sign of taking pleasure in torture or killing in the revolutionary cause. Lee Feigon considered Mao "draconian and authoritarian" when threatened but opined that he was not the "kind of villain that his mentor Stalin was". Alexander Pantsov and Steven I. Levine wrote that Mao was a "man of complex moods", who "tried his best to bring about prosperity and gain international respect" for China, being "neither a saint nor a demon." They noted that in early life, he strove to be "a strong, wilful, and purposeful hero, not bound by any moral chains", and that he "passionately desired fame and power". Mao learned to speak some English, particularly through Zhang Hanzhi, his English teacher, interpreter and diplomat who later married Qiao Guanhua, Foreign Minister of China and the head of China's UN delegation. His spoken English was limited to a few single words, phrases, and some short sentences. He first chose to systematically learn English in the 1950s, which was very unusual as the main foreign language first taught in Chinese schools at that time was Russian. Writings and calligraphy Mao was a prolific writer of political and philosophical literature. The main repository of his pre-1949 writings is the Selected Works of Mao Zedong, published in four volumes by the People's Publishing House since 1951. A fifth volume, which brought the timeline up to 1957, was briefly issued during the leadership of Hua Guofeng, but subsequently withdrawn from circulation for its perceived ideological errors. There has never been an official "Complete Works of Mao Zedong" collecting all his known publications. Mao is the attributed author of Quotations from Chairman Mao Tse-tung, known in the West as the "Little Red Book" and in Cultural Revolution China as the "Red Treasure Book" (). First published in January 1964, this is a collection of short extracts from his many speeches and articles (most found in the Selected Works), edited by Lin Biao, and ordered topically. The Little Red Book contains some of Mao's most widely known quotes.{{efn|Among them are: {{blockquote|"Taken as a whole, the Chinese revolutionary movement led by the Communist Party embraces two stages, i.e., the democratic and the socialist revolutions, which are two essentially different revolutionary processes, and the second process can be carried through only after the first has been completed. The democratic revolution is the necessary preparation for the socialist revolution, and the socialist revolution is the inevitable sequel to the democratic revolution. The ultimate aim for which all communists strive is to bring about a socialist and communist society."|source="The Chinese Revolution and the Chinese Communist Party" (December 1939), Selected Works of Mao Tse-tung, II, pp. 330–331.}} }} Mao wrote prolifically on political strategy, commentary, and philosophy both before and after he assumed power. Mao was also a skilled Chinese calligrapher with a highly personal style. In China, Mao was considered a master calligrapher during his lifetime. His calligraphy can be seen today throughout mainland China. His work gave rise to a new form of Chinese calligraphy called "Mao-style" or Maoti, which has gained increasing popularity since his death. There exist various competitions specialising in Mao-style calligraphy. Literary works As did most Chinese intellectuals of his generation, Mao's education began with Chinese classical literature. Mao told Edgar Snow in 1936 that he had started the study of the Confucian Analects and the Four Books at a village school when he was eight, but that the books he most enjoyed reading were Water Margin, Journey to the West, the Romance of the Three Kingdoms and Dream of the Red Chamber. Mao published poems in classical forms starting in his youth and his abilities as a poet contributed to his image in China after he came to power in 1949. His style was influenced by the great Tang dynasty poets Li Bai and Li He. Some of his most well-known poems are "Changsha" (1925), "The Double Ninth" (October 1929), "Loushan Pass" (1935), "The Long March" (1935), "Snow" (February 1936), "The PLA Captures Nanjing" (1949), "Reply to Li Shuyi" (May 11, 1957), and "Ode to the Plum Blossom" (December 1961). Portrayal in film and television Mao has been portrayed in film and television numerous times. Some notable actors include: Han Shi, the first actor ever to have portrayed Mao, in a 1978 drama Dielianhua and later again in a 1980 film Cross the Dadu River; Gu Yue, who had portrayed Mao 84 times on screen throughout his 27-year career and had won the Best Actor title at the Hundred Flowers Awards in 1990 and 1993; Liu Ye, who played a young Mao in The Founding of a Party (2011); Tang Guoqiang, who has frequently portrayed Mao in more recent times, in the films The Long March (1996) and The Founding of a Republic (2009), and the television series Huang Yanpei (2010), among others. Mao is a principal character in American composer John Adams' opera Nixon in China (1987). The Beatles' song "Revolution" refers to Mao in the verse "but if you go carrying pictures of Chairman Mao you ain't going to make it with anyone anyhow..."; John Lennon expressed regret over including these lines in the song in 1972. See also Chairman Mao badge Chinese tunic suit Feminism in Chinese communism#Mao era (1949–1976) Notes References Bibliography , which is superseded by Ross Terrill. Mao: A Biography.'' (Stanford, CA: Stanford University Press, 1999. Further reading External links General "Foundations of Chinese Foreign Policy online documents in English from the Wilson Center in Washington Asia Source biography ChineseMao.com: Extensive resources about Mao Zedong CNN profile Collected Works of Mao at the Maoist Internationalist Movement Collected Works of Mao Tse-tung (1917–1949) Joint Publications Research Service Mao quotations Mao Zedong Reference Archive at marxists.org Oxford Companion to World Politics: Mao Zedong Bio of Mao at the official Communist Party of China web site Commentary Discusses the life, military influence and writings of Chairman Mao ZeDong. What Maoism Has Contributed by Samir Amin (September 21, 2006) China must confront dark past, says Mao confidant Mao was cruel – but also laid the ground for today's China Comrade Mao – 44 Chinese posters of the 1950s – 70s On the Role of Mao Zedong by William Hinton. Monthly Review Foundation 2004 Volume 56, Issue 04 (September) Propaganda paintings showing Mao as the great leader of China Remembering Mao's Victims Mao's Great Leap to Famine Finding the Facts About Mao's Victims Remembering China's Great Helmsman Did Mao Really Kill Millions in the Great Leap Forward? Mao Tse Tung: China's Peasant Emperor |- |colspan="3" style="text-align:center;"|Communist Party of China|- |- |- |- |- |- |colspan="3" style="text-align:center;"|Chinese Soviet Republic|- |- |- |colspan="3" style="text-align:center;"|People's Republic of China''' |- |- |- |- 1893 births 1976 deaths 20th-century atheists 20th-century Chinese heads of government 20th-century Chinese philosophers 20th-century Chinese poets Articles containing video clips Anti-revisionists Chairpersons of the National Committee of the Chinese People's Political Consultative Conference Chinese anti-capitalists Chinese atheists Chinese communists Chinese guerrillas Chinese male writers Chinese Marxists Chinese military writers Chinese nationalists Chinese people of World War II Chinese political philosophers Chinese political writers Anti-imperialism Chinese revolutionaries Chinese Communist Party politicians from Hunan Communist poets Communist rulers Critics of religions Deified Chinese people Former Buddhists General Secretaries and Chairmen of the Chinese Communist Party Guerrilla warfare theorists Hunan First Normal University alumni Members of the 6th Central Committee of the Chinese Communist Party Members of the 7th Politburo of the Chinese Communist Party Members of the 8th Politburo Standing Committee of the Chinese Communist Party Revolution theorists Members of the 9th Politburo Standing Committee of the Chinese Communist Party Members of the 10th Politburo Standing Committee of the Chinese Communist Party People of the Chinese Civil War People of the Cold War People of the Cultural Revolution People with Parkinson's disease People's Republic of China poets People's Republic of China politicians from Hunan Philosophers from Hunan Poets from Hunan Politicians from Xiangtan Politicide perpetrators Presidents of the People's Republic of China Republic of China writers Mao Zedong family

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https://en.wikipedia.org/wiki/Mechanical%20engineering

Mechanical engineering

Mechanical engineering is an engineering branch that combines engineering physics and mathematics principles with materials science, to design, analyze, manufacture, and maintain mechanical systems. It is one of the oldest and broadest of the engineering branches. The mechanical engineering field requires an understanding of core areas including mechanics, dynamics, thermodynamics, materials science, structural analysis, and electricity. In addition to these core principles, mechanical engineers use tools such as computer-aided design (CAD), computer-aided manufacturing (CAM), and product lifecycle management to design and analyze manufacturing plants, industrial equipment and machinery, heating and cooling systems, transport systems, aircraft, watercraft, robotics, medical devices, weapons, and others. It is the branch of engineering that involves the design, production, and operation of machinery. Mechanical engineering emerged as a field during the Industrial Revolution in Europe in the 18th century; however, its development can be traced back several thousand years around the world. In the 19th century, developments in physics led to the development of mechanical engineering science. The field has continually evolved to incorporate advancements; today mechanical engineers are pursuing developments in such areas as composites, mechatronics, and nanotechnology. It also overlaps with aerospace engineering, metallurgical engineering, civil engineering, electrical engineering, manufacturing engineering, chemical engineering, industrial engineering, and other engineering disciplines to varying amounts. Mechanical engineers may also work in the field of biomedical engineering, specifically with biomechanics, transport phenomena, biomechatronics, bionanotechnology, and modelling of biological systems. History The application of mechanical engineering can be seen in the archives of various ancient and medieval societies. The six classic simple machines were known in the ancient Near East. The wedge and the inclined plane (ramp) were known since prehistoric times. The wheel, along with the wheel and axle mechanism, was invented in Mesopotamia (modern Iraq) during the 5th millennium BC. The lever mechanism first appeared around 5,000 years ago in the Near East, where it was used in a simple balance scale, and to move large objects in ancient Egyptian technology. The lever was also used in the shadoof water-lifting device, the first crane machine, which appeared in Mesopotamia circa 3000 BC. The earliest evidence of pulleys date back to Mesopotamia in the early 2nd millennium BC. The Sakia was developed in the Kingdom of Kush during the 4th century BC. It relied on animal power reducing the tow on the requirement of human energy. Reservoirs in the form of Hafirs were developed in Kush to store water and boost irrigation. Bloomeries and blast furnaces were developed during the seventh century BC in Meroe. Kushite sundials applied mathematics in the form of advanced trigonometry. The earliest practical water-powered machines, the water wheel and watermill, first appeared in the Persian Empire, in what are now Iraq and Iran, by the early 4th century BC. In ancient Greece, the works of Archimedes (287–212 BC) influenced mechanics in the Western tradition. In Roman Egypt, Heron of Alexandria (c. 10–70 AD) created the first steam-powered device (Aeolipile). In China, Zhang Heng (78–139 AD) improved a water clock and invented a seismometer, and Ma Jun (200–265 AD) invented a chariot with differential gears. The medieval Chinese horologist and engineer Su Song (1020–1101 AD) incorporated an escapement mechanism into his astronomical clock tower two centuries before escapement devices were found in medieval European clocks. He also invented the world's first known endless power-transmitting chain drive. During the Islamic Golden Age (7th to 15th century), Muslim inventors made remarkable contributions in the field of mechanical technology. Al-Jazari, who was one of them, wrote his famous Book of Ingenious Devices in 1206 and presented many mechanical designs. In the 17th century, important breakthroughs in the foundations of mechanical engineering occurred in England and the Continent. The Dutch mathematician and physicist Christiaan Huygens invented the pendulum clock in 1657, which was the first reliable timekeeper for almost 300 years, and published a work dedicated to clock designs and the theory behind them. In England, Isaac Newton formulated Newton's Laws of Motion and developed the calculus, which would become the mathematical basis of physics. Newton was reluctant to publish his works for years, but he was finally persuaded to do so by his colleagues, such as Edmond Halley. Gottfried Wilhelm Leibniz is also credited with developing the calculus during this time period. During the early 19th century Industrial Revolution, machine tools were developed in England, Germany, and Scotland. This allowed mechanical engineering to develop as a separate field within engineering. They brought with them manufacturing machines and the engines to power them. The first British professional society of mechanical engineers was formed in 1847 Institution of Mechanical Engineers, thirty years after the civil engineers formed the first such professional society Institution of Civil Engineers. On the European continent, Johann von Zimmermann (1820–1901) founded the first factory for grinding machines in Chemnitz, Germany in 1848. In the United States, the American Society of Mechanical Engineers (ASME) was formed in 1880, becoming the third such professional engineering society, after the American Society of Civil Engineers (1852) and the American Institute of Mining Engineers (1871). The first schools in the United States to offer an engineering education were the United States Military Academy in 1817, an institution now known as Norwich University in 1819, and Rensselaer Polytechnic Institute in 1825. Education in mechanical engineering has historically been based on a strong foundation in mathematics and science. Education Degrees in mechanical engineering are offered at various universities worldwide. Mechanical engineering programs typically take four to five years of study depending on the place and university and result in a Bachelor of Engineering (B.Eng. or B.E.), Bachelor of Science (B.Sc. or B.S.), Bachelor of Science Engineering (B.Sc.Eng.), Bachelor of Technology (B.Tech.), Bachelor of Mechanical Engineering (B.M.E.), or Bachelor of Applied Science (B.A.Sc.) degree, in or with emphasis in mechanical engineering. In Spain, Portugal and most of South America, where neither B.S. nor B.Tech. programs have been adopted, the formal name for the degree is "Mechanical Engineer", and the course work is based on five or six years of training. In Italy the course work is based on five years of education, and training, but in order to qualify as an Engineer one has to pass a state exam at the end of the course. In Greece, the coursework is based on a five-year curriculum and the requirement of a 'Diploma' Thesis, which upon completion a 'Diploma' is awarded rather than a B.Sc. In the United States, most undergraduate mechanical engineering programs are accredited by the Accreditation Board for Engineering and Technology (ABET) to ensure similar course requirements and standards among universities. The ABET web site lists 302 accredited mechanical engineering programs as of 11 March 2014. Mechanical engineering programs in Canada are accredited by the Canadian Engineering Accreditation Board (CEAB), and most other countries offering engineering degrees have similar accreditation societies. In Australia, mechanical engineering degrees are awarded as Bachelor of Engineering (Mechanical) or similar nomenclature, although there are an increasing number of specialisations. The degree takes four years of full-time study to achieve. To ensure quality in engineering degrees, Engineers Australia accredits engineering degrees awarded by Australian universities in accordance with the global Washington Accord. Before the degree can be awarded, the student must complete at least 3 months of on the job work experience in an engineering firm. Similar systems are also present in South Africa and are overseen by the Engineering Council of South Africa (ECSA). In India, to become an engineer, one needs to have an engineering degree like a B.Tech or B.E, have a diploma in engineering, or by completing a course in an engineering trade like fitter from the Industrial Training Institute (ITIs) to receive a "ITI Trade Certificate" and also pass the All India Trade Test (AITT) with an engineering trade conducted by the National Council of Vocational Training (NCVT) by which one is awarded a "National Trade Certificate". A similar system is used in Nepal. Some mechanical engineers go on to pursue a postgraduate degree such as a Master of Engineering, Master of Technology, Master of Science, Master of Engineering Management (M.Eng.Mgt. or M.E.M.), a Doctor of Philosophy in engineering (Eng.D. or Ph.D.) or an engineer's degree. The master's and engineer's degrees may or may not include research. The Doctor of Philosophy includes a significant research component and is often viewed as the entry point to academia. The Engineer's degree exists at a few institutions at an intermediate level between the master's degree and the doctorate. Coursework Standards set by each country's accreditation society are intended to provide uniformity in fundamental subject material, promote competence among graduating engineers, and to maintain confidence in the engineering profession as a whole. Engineering programs in the U.S., for example, are required by ABET to show that their students can "work professionally in both thermal and mechanical systems areas." The specific courses required to graduate, however, may differ from program to program. Universities and institutes of technology will often combine multiple subjects into a single class or split a subject into multiple classes, depending on the faculty available and the university's major area(s) of research. The fundamental subjects required for mechanical engineering usually include: Mathematics (in particular, calculus, differential equations, and linear algebra) Basic physical sciences (including physics and chemistry) Statics and dynamics Strength of materials and solid mechanics Materials engineering, composites Thermodynamics, heat transfer, energy conversion, and HVAC Fuels, combustion, internal combustion engine Fluid mechanics (including fluid statics and fluid dynamics) Mechanism and Machine design (including kinematics and dynamics) Instrumentation and measurement Manufacturing engineering, technology, or processes Vibration, control theory and control engineering Hydraulics and Pneumatics Mechatronics and robotics Engineering design and product design Drafting, computer-aided design (CAD) and computer-aided manufacturing (CAM) Mechanical engineers are also expected to understand and be able to apply basic concepts from chemistry, physics, tribology, chemical engineering, civil engineering, and electrical engineering. All mechanical engineering programs include multiple semesters of mathematical classes including calculus, and advanced mathematical concepts including differential equations, partial differential equations, linear algebra, abstract algebra, and differential geometry, among others. In addition to the core mechanical engineering curriculum, many mechanical engineering programs offer more specialized programs and classes, such as control systems, robotics, transport and logistics, cryogenics, fuel technology, automotive engineering, biomechanics, vibration, optics and others, if a separate department does not exist for these subjects. Most mechanical engineering programs also require varying amounts of research or community projects to gain practical problem-solving experience. In the United States it is common for mechanical engineering students to complete one or more internships while studying, though this is not typically mandated by the university. Cooperative education is another option. Future work skills research puts demand on study components that feed student's creativity and innovation. Job duties Mechanical engineers research, design, develop, build, and test mechanical and thermal devices, including tools, engines, and machines. Mechanical engineers typically do the following: Analyze problems to see how mechanical and thermal devices might help solve the problem. Design or redesign mechanical and thermal devices using analysis and computer-aided design. Develop and test prototypes of devices they design. Analyze the test results and change the design as needed. Oversee the manufacturing process for the device. Manage a team of professionals in specialized fields like mechanical drafting and designing, prototyping, 3D printing or/and CNC Machines specialists. Mechanical engineers design and oversee the manufacturing of many products ranging from medical devices to new batteries. They also design power-producing machines such as electric generators, internal combustion engines, and steam and gas turbines as well as power-using machines, such as refrigeration and air-conditioning systems. Like other engineers, mechanical engineers use computers to help create and analyze designs, run simulations and test how a machine is likely to work. License and regulation Engineers may seek license by a state, provincial, or national government. The purpose of this process is to ensure that engineers possess the necessary technical knowledge, real-world experience, and knowledge of the local legal system to practice engineering at a professional level. Once certified, the engineer is given the title of Professional Engineer (United States, Canada, Japan, South Korea, Bangladesh and South Africa), Chartered Engineer (in the United Kingdom, Ireland, India and Zimbabwe), Chartered Professional Engineer (in Australia and New Zealand) or European Engineer (much of the European Union). In the U.S., to become a licensed Professional Engineer (PE), an engineer must pass the comprehensive FE (Fundamentals of Engineering) exam, work a minimum of 4 years as an Engineering Intern (EI) or Engineer-in-Training (EIT), and pass the "Principles and Practice" or PE (Practicing Engineer or Professional Engineer) exams. The requirements and steps of this process are set forth by the National Council of Examiners for Engineering and Surveying (NCEES), a composed of engineering and land surveying licensing boards representing all U.S. states and territories. In the UK, current graduates require a BEng plus an appropriate master's degree or an integrated MEng degree, a minimum of 4 years post graduate on the job competency development and a peer reviewed project report to become a Chartered Mechanical Engineer (CEng, MIMechE) through the Institution of Mechanical Engineers. CEng MIMechE can also be obtained via an examination route administered by the City and Guilds of London Institute. In most developed countries, certain engineering tasks, such as the design of bridges, electric power plants, and chemical plants, must be approved by a professional engineer or a chartered engineer. "Only a licensed engineer, for instance, may prepare, sign, seal and submit engineering plans and drawings to a public authority for approval, or to seal engineering work for public and private clients." This requirement can be written into state and provincial legislation, such as in the Canadian provinces, for example the Ontario or Quebec's Engineer Act. In other countries, such as Australia, and the UK, no such legislation exists; however, practically all certifying bodies maintain a code of ethics independent of legislation, that they expect all members to abide by or risk expulsion. Salaries and workforce statistics The total number of engineers employed in the U.S. in 2015 was roughly 1.6 million. Of these, 278,340 were mechanical engineers (17.28%), the largest discipline by size. In 2012, the median annual income of mechanical engineers in the U.S. workforce was $80,580. The median income was highest when working for the government ($92,030), and lowest in education ($57,090). In 2014, the total number of mechanical engineering jobs was projected to grow 5% over the next decade. As of 2009, the average starting salary was $58,800 with a bachelor's degree. Subdisciplines The field of mechanical engineering can be thought of as a collection of many mechanical engineering science disciplines. Several of these subdisciplines which are typically taught at the undergraduate level are listed below, with a brief explanation and the most common application of each. Some of these subdisciplines are unique to mechanical engineering, while others are a combination of mechanical engineering and one or more other disciplines. Most work that a mechanical engineer does uses skills and techniques from several of these subdisciplines, as well as specialized subdisciplines. Specialized subdisciplines, as used in this article, are more likely to be the subject of graduate studies or on-the-job training than undergraduate research. Several specialized subdisciplines are discussed in this section. Mechanics Mechanics is, in the most general sense, the study of forces and their effect upon matter. Typically, engineering mechanics is used to analyze and predict the acceleration and deformation (both elastic and plastic) of objects under known forces (also called loads) or stresses. Subdisciplines of mechanics include Statics, the study of non-moving bodies under known loads, how forces affect static bodies Dynamics the study of how forces affect moving bodies. Dynamics includes kinematics (about movement, velocity, and acceleration) and kinetics (about forces and resulting accelerations). Mechanics of materials, the study of how different materials deform under various types of stress Fluid mechanics, the study of how fluids react to forces Kinematics, the study of the motion of bodies (objects) and systems (groups of objects), while ignoring the forces that cause the motion. Kinematics is often used in the design and analysis of mechanisms. Continuum mechanics, a method of applying mechanics that assumes that objects are continuous (rather than discrete) Mechanical engineers typically use mechanics in the design or analysis phases of engineering. If the engineering project were the design of a vehicle, statics might be employed to design the frame of the vehicle, in order to evaluate where the stresses will be most intense. Dynamics might be used when designing the car's engine, to evaluate the forces in the pistons and cams as the engine cycles. Mechanics of materials might be used to choose appropriate materials for the frame and engine. Fluid mechanics might be used to design a ventilation system for the vehicle (see HVAC), or to design the intake system for the engine. Mechatronics and robotics Mechatronics is a combination of mechanics and electronics. It is an interdisciplinary branch of mechanical engineering, electrical engineering and software engineering that is concerned with integrating electrical and mechanical engineering to create hybrid automation systems. In this way, machines can be automated through the use of electric motors, servo-mechanisms, and other electrical systems in conjunction with special software. A common example of a mechatronics system is a CD-ROM drive. Mechanical systems open and close the drive, spin the CD and move the laser, while an optical system reads the data on the CD and converts it to bits. Integrated software controls the process and communicates the contents of the CD to the computer. Robotics is the application of mechatronics to create robots, which are often used in industry to perform tasks that are dangerous, unpleasant, or repetitive. These robots may be of any shape and size, but all are preprogrammed and interact physically with the world. To create a robot, an engineer typically employs kinematics (to determine the robot's range of motion) and mechanics (to determine the stresses within the robot). Robots are used extensively in industrial automation engineering. They allow businesses to save money on labor, perform tasks that are either too dangerous or too precise for humans to perform them economically, and to ensure better quality. Many companies employ assembly lines of robots, especially in Automotive Industries and some factories are so robotized that they can run by themselves. Outside the factory, robots have been employed in bomb disposal, space exploration, and many other fields. Robots are also sold for various residential applications, from recreation to domestic applications. Structural analysis Structural analysis is the branch of mechanical engineering (and also civil engineering) devoted to examining why and how objects fail and to fix the objects and their performance. Structural failures occur in two general modes: static failure, and fatigue failure. Static structural failure occurs when, upon being loaded (having a force applied) the object being analyzed either breaks or is deformed plastically, depending on the criterion for failure. Fatigue failure occurs when an object fails after a number of repeated loading and unloading cycles. Fatigue failure occurs because of imperfections in the object: a microscopic crack on the surface of the object, for instance, will grow slightly with each cycle (propagation) until the crack is large enough to cause ultimate failure. Failure is not simply defined as when a part breaks, however; it is defined as when a part does not operate as intended. Some systems, such as the perforated top sections of some plastic bags, are designed to break. If these systems do not break, failure analysis might be employed to determine the cause. Structural analysis is often used by mechanical engineers after a failure has occurred, or when designing to prevent failure. Engineers often use online documents and books such as those published by ASM to aid them in determining the type of failure and possible causes. Once theory is applied to a mechanical design, physical testing is often performed to verify calculated results. Structural analysis may be used in an office when designing parts, in the field to analyze failed parts, or in laboratories where parts might undergo controlled failure tests. Thermodynamics and thermo-science Thermodynamics is an applied science used in several branches of engineering, including mechanical and chemical engineering. At its simplest, thermodynamics is the study of energy, its use and transformation through a system. Typically, engineering thermodynamics is concerned with changing energy from one form to another. As an example, automotive engines convert chemical energy (enthalpy) from the fuel into heat, and then into mechanical work that eventually turns the wheels. Thermodynamics principles are used by mechanical engineers in the fields of heat transfer, thermofluids, and energy conversion. Mechanical engineers use thermo-science to design engines and power plants, heating, ventilation, and air-conditioning (HVAC) systems, heat exchangers, heat sinks, radiators, refrigeration, insulation, and others. Design and drafting Drafting or technical drawing is the means by which mechanical engineers design products and create instructions for manufacturing parts. A technical drawing can be a computer model or hand-drawn schematic showing all the dimensions necessary to manufacture a part, as well as assembly notes, a list of required materials, and other pertinent information. A U.S. mechanical engineer or skilled worker who creates technical drawings may be referred to as a drafter or draftsman. Drafting has historically been a two-dimensional process, but computer-aided design (CAD) programs now allow the designer to create in three dimensions. Instructions for manufacturing a part must be fed to the necessary machinery, either manually, through programmed instructions, or through the use of a computer-aided manufacturing (CAM) or combined CAD/CAM program. Optionally, an engineer may also manually manufacture a part using the technical drawings. However, with the advent of computer numerically controlled (CNC) manufacturing, parts can now be fabricated without the need for constant technician input. Manually manufactured parts generally consist of spray coatings, surface finishes, and other processes that cannot economically or practically be done by a machine. Drafting is used in nearly every subdiscipline of mechanical engineering, and by many other branches of engineering and architecture. Three-dimensional models created using CAD software are also commonly used in finite element analysis (FEA) and computational fluid dynamics (CFD). Modern tools Many mechanical engineering companies, especially those in industrialized nations, have begun to incorporate computer-aided engineering (CAE) programs into their existing design and analysis processes, including 2D and 3D solid modeling computer-aided design (CAD). This method has many benefits, including easier and more exhaustive visualization of products, the ability to create virtual assemblies of parts, and the ease of use in designing mating interfaces and tolerances. Other CAE programs commonly used by mechanical engineers include product lifecycle management (PLM) tools and analysis tools used to perform complex simulations. Analysis tools may be used to predict product response to expected loads, including fatigue life and manufacturability. These tools include finite element analysis (FEA), computational fluid dynamics (CFD), and computer-aided manufacturing (CAM). Using CAE programs, a mechanical design team can quickly and cheaply iterate the design process to develop a product that better meets cost, performance, and other constraints. No physical prototype need be created until the design nears completion, allowing hundreds or thousands of designs to be evaluated, instead of a relative few. In addition, CAE analysis programs can model complicated physical phenomena which cannot be solved by hand, such as viscoelasticity, complex contact between mating parts, or non-Newtonian flows. As mechanical engineering begins to merge with other disciplines, as seen in mechatronics, multidisciplinary design optimization (MDO) is being used with other CAE programs to automate and improve the iterative design process. MDO tools wrap around existing CAE processes, allowing product evaluation to continue even after the analyst goes home for the day. They also utilize sophisticated optimization algorithms to more intelligently explore possible designs, often finding better, innovative solutions to difficult multidisciplinary design problems. Areas of research Mechanical engineers are constantly pushing the boundaries of what is physically possible in order to produce safer, cheaper, and more efficient machines and mechanical systems. Some technologies at the cutting edge of mechanical engineering are listed below (see also exploratory engineering). Micro electro-mechanical systems (MEMS) Micron-scale mechanical components such as springs, gears, fluidic and heat transfer devices are fabricated from a variety of substrate materials such as silicon, glass and polymers like SU8. Examples of MEMS components are the accelerometers that are used as car airbag sensors, modern cell phones, gyroscopes for precise positioning and microfluidic devices used in biomedical applications. Friction stir welding (FSW) Friction stir welding, a new type of welding, was discovered in 1991 by The Welding Institute (TWI). The innovative steady state (non-fusion) welding technique joins materials previously un-weldable, including several aluminum alloys. It plays an important role in the future construction of airplanes, potentially replacing rivets. Current uses of this technology to date include welding the seams of the aluminum main Space Shuttle external tank, Orion Crew Vehicle, Boeing Delta II and Delta IV Expendable Launch Vehicles and the SpaceX Falcon 1 rocket, armor plating for amphibious assault ships, and welding the wings and fuselage panels of the new Eclipse 500 aircraft from Eclipse Aviation among an increasingly growing pool of uses. Composites Composites or composite materials are a combination of materials which provide different physical characteristics than either material separately. Composite material research within mechanical engineering typically focuses on designing (and, subsequently, finding applications for) stronger or more rigid materials while attempting to reduce weight, susceptibility to corrosion, and other undesirable factors. Carbon fiber reinforced composites, for instance, have been used in such diverse applications as spacecraft and fishing rods. Mechatronics Mechatronics is the synergistic combination of mechanical engineering, electronic engineering, and software engineering. The discipline of mechatronics began as a way to combine mechanical principles with electrical engineering. Mechatronic concepts are used in the majority of electro-mechanical systems. Typical electro-mechanical sensors used in mechatronics are strain gauges, thermocouples, and pressure transducers. Nanotechnology At the smallest scales, mechanical engineering becomes nanotechnology—one speculative goal of which is to create a molecular assembler to build molecules and materials via mechanosynthesis. For now that goal remains within exploratory engineering. Areas of current mechanical engineering research in nanotechnology include nanofilters, nanofilms, and nanostructures, among others. Finite element analysis Finite Element Analysis is a computational tool used to estimate stress, strain, and deflection of solid bodies. It uses a mesh setup with user-defined sizes to measure physical quantities at a node. The more nodes there are, the higher the precision. This field is not new, as the basis of Finite Element Analysis (FEA) or Finite Element Method (FEM) dates back to 1941. But the evolution of computers has made FEA/FEM a viable option for analysis of structural problems. Many commercial codes such as NASTRAN, ANSYS, and ABAQUS are widely used in industry for research and the design of components. Some 3D modeling and CAD software packages have added FEA modules. In the recent times, cloud simulation platforms like SimScale are becoming more common. Other techniques such as finite difference method (FDM) and finite-volume method (FVM) are employed to solve problems relating heat and mass transfer, fluid flows, fluid surface interaction, etc. Biomechanics Biomechanics is the application of mechanical principles to biological systems, such as humans, animals, plants, organs, and cells. Biomechanics also aids in creating prosthetic limbs and artificial organs for humans. Biomechanics is closely related to engineering, because it often uses traditional engineering sciences to analyze biological systems. Some simple applications of Newtonian mechanics and/or materials sciences can supply correct approximations to the mechanics of many biological systems. In the past decade, reverse engineering of materials found in nature such as bone matter has gained funding in academia. The structure of bone matter is optimized for its purpose of bearing a large amount of compressive stress per unit weight. The goal is to replace crude steel with bio-material for structural design. Over the past decade the Finite element method (FEM) has also entered the Biomedical sector highlighting further engineering aspects of Biomechanics. FEM has since then established itself as an alternative to in vivo surgical assessment and gained the wide acceptance of academia. The main advantage of Computational Biomechanics lies in its ability to determine the endo-anatomical response of an anatomy, without being subject to ethical restrictions. This has led FE modelling to the point of becoming ubiquitous in several fields of Biomechanics while several projects have even adopted an open source philosophy (e.g. BioSpine). Computational fluid dynamics Computational fluid dynamics, usually abbreviated as CFD, is a branch of fluid mechanics that uses numerical methods and algorithms to solve and analyze problems that involve fluid flows. Computers are used to perform the calculations required to simulate the interaction of liquids and gases with surfaces defined by boundary conditions. With high-speed supercomputers, better solutions can be achieved. Ongoing research yields software that improves the accuracy and speed of complex simulation scenarios such as turbulent flows. Initial validation of such software is performed using a wind tunnel with the final validation coming in full-scale testing, e.g. flight tests. Acoustical engineering Acoustical engineering is one of many other sub-disciplines of mechanical engineering and is the application of acoustics. Acoustical engineering is the study of Sound and Vibration. These engineers work effectively to reduce noise pollution in mechanical devices and in buildings by soundproofing or removing sources of unwanted noise. The study of acoustics can range from designing a more efficient hearing aid, microphone, headphone, or recording studio to enhancing the sound quality of an orchestra hall. Acoustical engineering also deals with the vibration of different mechanical systems. Related fields Manufacturing engineering, aerospace engineering and automotive engineering are grouped with mechanical engineering at times. A bachelor's degree in these areas will typically have a difference of a few specialized classes. See also Lists Glossary of mechanical engineering List of historic mechanical engineering landmarks List of inventors List of mechanical engineering topics List of mechanical engineers List of related journals List of mechanical, electrical and electronic equipment manufacturing companies by revenue Associations American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) American Society of Mechanical Engineers (ASME) Pi Tau Sigma (Mechanical Engineering honor society) Society of Automotive Engineers (SAE) Society of Women Engineers (SWE) Institution of Mechanical Engineers (IMechE) (British) Chartered Institution of Building Services Engineers (CIBSE) (British) Verein Deutscher Ingenieure (VDI) (Germany) Wikibooks Engineering Mechanics Engineering Thermodynamics Engineering Acoustics Fluid Mechanics Heat Transfer Microtechnology Nanotechnology Pro/Engineer (ProE CAD) Strength of Materials/Solid Mechanics References Further reading External links Engineering disciplines Mechanical designers

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Minister

Minister may refer to: Minister (Christianity), a Christian cleric Minister (Catholic Church) Minister (government), a member of government who heads a ministry (government department) Minister without portfolio, a member of government with the rank of a normal minister but who doesn't head a ministry Shadow minister, a member of a Shadow Cabinet of the opposition Minister (Austria) Minister (diplomacy), the rank of diplomat directly below ambassador Ministerialis, a member of a noble class in the Holy Roman Empire The Minister, a 2011 French-Belgian film directed by Pierre Schöller See also Ministry (disambiguation) Minster (disambiguation) Yes Minister

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March 11

Events Pre-1600 222 – Alexander Severus becomes emperor of Rome, replacing his cousin, 18-year-old Elagabalus. The bodies of the assassinated emperor and his mother, Julia Soaemias, are dragged through the streets of the city and thrown into the Tiber. 1343 – Arnošt of Pardubice becomes the last Bishop of Prague (3 March 1343 O.S.), and, a year later, the first Archbishop of Prague. 1601–1900 1641 – Guaraní forces living in the Jesuit reductions defeat bandeirantes loyal to the Portuguese Empire at the Battle of Mbororé in present-day Panambí, Argentina. 1649 – The Frondeurs and the French sign the Peace of Rueil. 1702 – The Daily Courant, England's first national daily newspaper, is published for the first time. 1708 – Queen Anne withholds Royal Assent from the Scottish Militia Bill, the last time a British monarch vetoes legislation. 1784 – The signing of the Treaty of Mangalore brings the Second Anglo-Mysore War to an end. 1795 – The Battle of Kharda is fought between the Maratha Confederacy and the Nizam of Hyderabad, resulting in Maratha victory. 1845 – Flagstaff War: Unhappy with translational differences regarding the Treaty of Waitangi, chiefs Hone Heke, Kawiti and Māori tribe members chop down the British flagpole for a fourth time and drive settlers out of Kororareka, New Zealand. 1848 – Louis-Hippolyte Lafontaine and Robert Baldwin become the first Prime Ministers of the Province of Canada to be democratically elected under a system of responsible government. 1851 – The first performance of Rigoletto by Giuseppe Verdi takes place in Venice. 1861 – American Civil War: The Constitution of the Confederate States of America is adopted. 1864 – The Great Sheffield Flood kills 238 people in Sheffield, England. 1872 – Construction of the Seven Sisters Colliery, South Wales, begins; it is located on one of the richest coal sources in Britain. 1879 – Shō Tai formally abdicates his position of King of Ryūkyū, under orders from Tokyo, ending the Ryukyu Kingdom. 1888 – The Great Blizzard of 1888 begins along the eastern seaboard of the United States, shutting down commerce and killing more than 400 people. 1901–present 1917 – World War I: Mesopotamian campaign: Baghdad falls to Anglo-Indian forces commanded by General Frederick Stanley Maude. 1927 – In New York City, Samuel Roxy Rothafel opens the Roxy Theatre. 1941 – World War II: United States President Franklin D. Roosevelt signs the Lend-Lease Act into law, allowing American-built war supplies to be shipped to the Allies on loan. 1945 – World War II: The Imperial Japanese Navy attempts a large-scale kamikaze attack on the U.S. Pacific Fleet anchored at Ulithi atoll in Operation Tan No. 2. 1945 – World War II: The Empire of Vietnam, a short-lived Japanese puppet state, is established. 1946 – Rudolf Höss, the first commandant of Auschwitz concentration camp, is captured by British troops. 1977 – The 1977 Hanafi Siege: Around 150 hostages held in Washington, D.C., by Hanafi Muslims are set free after ambassadors from three Islamic nations join negotiations. 1978 – Coastal Road massacre: At least 37 are killed and more than 70 are wounded when Fatah hijack an Israeli bus, prompting Israel's Operation Litani. 1981 – Hundreds of students protest in the University of Pristina in Kosovo, then part of Yugoslavia, to give their province more political rights. The protests then became a nationwide movement. 1983 – Bob Hawke is appointed Prime Minister of Australia. 1985 – Mikhail Gorbachev is elected to the position of General Secretary of the Communist Party of the Soviet Union, making Gorbachev the USSR's de facto, and last, head of state. 1990 – Lithuania declares independence from the Soviet Union. 1990 – Patricio Aylwin is sworn in as the first democratically elected President of Chile since 1970. 2004 – Madrid train bombings: Simultaneous explosions on rush hour trains in Madrid, Spain, kill 191 people. 2006 – Michelle Bachelet is inaugurated as the first female president of Chile. 2009 – Winnenden school shooting: Sixteen are killed and 11 are injured before recent graduate Tim Kretschmer shoots and kills himself, leading to tightened weapons restrictions in Germany. 2010 – Economist and businessman Sebastián Piñera is sworn in as President of Chile. Aftershocks of the 2010 Pichilemu earthquake hit central Chile during the ceremony. 2011 – An earthquake measuring 9.0 in magnitude strikes east of Sendai, Japan, triggering a tsunami killing thousands of people. This event also triggered the second largest nuclear accident in history, and one of only two events to be classified as a Level 7 on the International Nuclear Event Scale. 2012 – A U.S. soldier kills 16 civilians in the Panjwayi District of Afghanistan near Kandahar. 2020 – The World Health Organization (WHO) declares COVID-19 virus a pandemic. 2021 – US President Joe Biden signs the $1.9 trillion American Rescue Plan into law. Births Pre-1600 1278 – Mary of Woodstock, daughter of Edward I of England (d. c.1332) 1544 – Torquato Tasso, Italian poet and educator (d. 1595) 1601–1900 1738 – Benjamin Tupper, American general (d. 1792) 1785 – John McLean, American jurist and politician (d. 1861) 1806 – Louis Boulanger, French Romantic painter, lithographer and illustrator (d. 1867) 1811 – Urbain Le Verrier, French mathematician and astronomer (d. 1877) 1815 – Anna Bochkoltz, German operatic soprano, voice teacher and composer (d. 1879) 1818 – Marius Petipa, French-Russian dancer and choreographer (d. 1910) 1819 – Henry Tate, English businessman and philanthropist, founded Tate & Lyle (d. 1899) 1822 – Joseph Louis François Bertrand, French mathematician, economist, and academic (d. 1900) 1863 – Andrew Stoddart, English cricketer and rugby player (d. 1915) 1870 – Louis Bachelier, French mathematician and theorist (d. 1946) 1876 – Carl Ruggles, American composer and painter (d. 1971) 1880 – Harry H. Laughlin, American eugenicist and sociologist (d. 1943) 1884 – Lewi Pethrus, Swedish minister and hymn-writer (d. 1974) 1885 – Malcolm Campbell, English race car driver (d. 1948) 1887 – Raoul Walsh, American actor and director (d. 1980) 1890 – Vannevar Bush, American engineer and academic (d. 1974) 1893 – Wanda Gág, American author and illustrator (d. 1946) 1897 – Henry Cowell, American pianist and composer (d. 1965) 1898 – Dorothy Gish, American actress (d. 1968) 1899 – Frederick IX of Denmark (d. 1972) 1899 – James H. Douglas, Jr., American lawyer, and politician, United States Deputy Secretary of Defense (d. 1988) 1901–present 1903 – Ronald Syme, New Zealand historian and scholar (d. 1989) 1903 – Lawrence Welk, American accordion player and bandleader (d. 1992) 1907 – Jessie Matthews, English actress, singer, and dancer (d. 1981) 1908 – Matti Sippala, Finnish javelin thrower (d. 1997) 1910 – Robert Havemann, German chemist and academic (d. 1982) 1911 – Sir Fitzroy Maclean, 1st Baronet, Scottish general and politician (d. 1996) 1913 – Wolf-Dietrich Wilcke, German colonel and pilot (d. 1944) 1915 – Vijay Hazare, Indian cricketer (d. 2004) 1915 – J. C. R. Licklider, American computer scientist and psychologist (d. 1990) 1916 – Harold Wilson, English academic and politician, Prime Minister of the United Kingdom (d. 1995) 1920 – Nicolaas Bloembergen, Dutch-American physicist and academic, Nobel Prize laureate (d. 2017) 1921 – Astor Piazzolla, Argentine tango composer and bandoneon player (d. 1992) 1922 – Cornelius Castoriadis, Greek economist and philosopher (d. 1997) 1922 – Abdul Razak Hussein, Malaysian lawyer and politician, Prime Minister of Malaysia (d. 1976) 1922 – José Luis López Vázquez, Spanish actor and director (d. 2009) 1923 – Louise Brough, American tennis player (d. 2014) 1925 – Margaret Oakley Dayhoff, American biochemist and academic (d. 1983) 1926 – Ralph Abernathy, American minister and activist (d. 1990) 1927 – Freda Meissner-Blau, Austrian activist and politician (d. 2015) 1927 – Robert Mosbacher, American businessman, and politician, United States Secretary of Commerce (d. 2010) 1927 – Josep Maria Subirachs, Spanish sculptor and painter (d. 2014) 1929 – Timothy Carey, American actor, director, producer, and screenwriter (d. 1994) 1929 – Jackie McGlew, South African cricketer (d. 1998) 1930 – David Gentleman, English illustrator and engraver 1930 – Claude Jutra, Canadian actor, director and screenwriter (d. 1986) 1931 – Rupert Murdoch, Australian-American businessman and media magnate 1932 – Leroy Jenkins, American violinist and composer (d. 2007) 1932 – Nigel Lawson, English journalist and politician, Chancellor of the Exchequer 1934 – Sam Donaldson, American journalist 1936 – Antonin Scalia, American lawyer and jurist, Associate Justice of the Supreme Court of the United States (d. 2016) 1940 – Alberto Cortez, Argentinian-Spanish singer-songwriter (d. 2019) 1943 – Arturo Merzario, Italian race car driver 1945 – Dock Ellis, American baseball player and coach (d. 2008) 1945 – Harvey Mandel, American guitarist 1947 – Tristan Murail, French composer and educator 1950 – Bobby McFerrin, American singer-songwriter, producer, and conductor 1950 – Jerry Zucker, American director, producer, and screenwriter 1951 – Dominique Sanda, French model and actress 1952 – Douglas Adams, English author and playwright (d. 2001) 1953 – Derek Daly, Irish-American race car driver and sportscaster 1953 – Jimmy Iovine, American record producer and businessman, co-founded Beats Electronics 1953 – Bernie LaBarge, Canadian singer-songwriter and guitarist 1954 – David Newman, American composer and conductor 1954 – Gale Norton, American politician, 48th United States Secretary of the Interior 1955 – Leslie Cliff, Canadian swimmer 1955 – Nina Hagen, German singer-songwriter 1956 – Willie Banks, American triple jumper 1956 – Helen Rollason, English sports journalist and sportscaster (d. 1999) 1957 – Qasem Soleimani, Former Iranian commander of the Quds Force (d. 2020) 1958 – Anissa Jones, American child actress (d. 1976) 1959 – Nina Hartley, American pornographic actress/director, sex educator, sex-positive feminist, and author 1960 – Warwick Taylor, New Zealand rugby player 1961 – Elias Koteas, Canadian actor 1961 – Bruce Watson, Canadian-Scottish guitarist 1962 – Matt Mead, American politician, Governor of Wyoming 1963 – Gary Barnett, English footballer and manager 1963 – Alex Kingston, English actress 1963 – David LaChapelle, American photographer and director 1964 – Vinnie Paul, American drummer, songwriter and producer (d. 2018) 1964 – Shane Richie, English actor and singer 1965 – Nigel Adkins, English footballer and manager 1965 – Jesse Jackson, Jr., American lawyer and politician 1965 – Jenny Packham, English fashion designer 1966 – John Thompson III, American basketball player and coach 1967 – John Barrowman, Scottish-American actor and singer 1967 – Brad Carson, American lawyer and politician 1969 – Terrence Howard, American actor and producer 1969 – Soraya, Colombian-American singer-songwriter, guitarist, and producer (d. 2006) 1974 – Bobby Abreu, Venezuelan baseball player 1976 – Thomas Gravesen, Danish footballer 1977 – Becky Hammon, American-Russian basketball player and coach 1978 – Didier Drogba, Ivorian footballer 1978 – Albert Luque, Spanish footballer 1979 – Elton Brand, American basketball player 1979 – Fred Jones, American basketball player 1979 – Benji Madden, American singer-songwriter and guitarist 1979 – Joel Madden, American singer-songwriter and producer 1980 – Dan Uggla, American baseball player 1981 – LeToya Luckett, American singer-songwriter and actress 1982 – Brian Anderson, American baseball player 1985 – Paul Bissonnette, Canadian ice hockey player 1985 – Daniel Vázquez Evuy, Equatoguinean footballer 1985 – Cassandra Fairbanks, American journalist and activist 1985 – Stelios Malezas, Greek footballer 1985 – Greg Olsen, American football player 1985 – Nikolai Topor-Stanley, Australian footballer 1986 – Dario Cologna, Swiss skier 1987 – Marc-André Gragnani, Canadian ice hockey player 1987 – Tanel Kangert, Estonian cyclist 1987 – Ngonidzashe Makusha, Zimbabwean sprinter and long jumper 1988 – Fábio Coentrão, Portuguese footballer 1988 – Cecil Lolo, South African footballer (d. 2015) 1989 – Anton Yelchin, Russian-born American actor (d. 2016) 1990 – Ayumi Morita, Japanese tennis player 1993 – Jodie Comer, British actress 1993 – Anthony Davis, American basketball player 1994 – Andrew Robertson, Scottish footballer Deaths Pre-1600 222 – Elagabalus, Roman emperor (b. 203) 638 – Sophronius of Jerusalem (b. 560) 1198 – Marie of France, Countess of Champagne (b. 1145) 1486 – Albrecht III Achilles, Elector of Brandenburg (b. 1414) 1575 – Matthias Flacius, Croatian theologian and reformer (b. 1520) 1601–1900 1602 – Emilio de' Cavalieri, Italian organist and composer (b. 1550) 1607 – Giovanni Maria Nanino, Italian composer and educator (b. 1543) 1665 – Clemente Tabone, Maltese landowner and militia member (b. c. 1575) 1722 – John Toland, Irish philosopher and theorist (b. 1670) 1759 – John Forbes, Scottish general (b. 1707) 1820 – Benjamin West, American-English painter and academic (b. 1738) 1851 – Marie-Louise Coidavid, Queen of Haiti (b. 1778) 1851 – George McDuffie, American lawyer and politician, 55th Governor of South Carolina (b. 1790) 1863 – Sir James Outram, 1st Baronet, English general (b. 1803) 1869 – Vladimir Odoyevsky, Russian philosopher and critic (b. 1803) 1870 – Moshoeshoe I of Lesotho (b. 1786) 1874 – Charles Sumner, American lawyer and politician (b. 1811) 1898 – William Rosecrans, American general and politician (b. 1819) 1901–present 1907 – Jean Casimir-Perier, French lawyer and politician, 6th President of France (b. 1847) 1908 – Edmondo De Amicis, Italian journalist and author (b. 1846) 1908 – Benjamin Waugh, English minister and activist (b. 1839) 1915 – Thomas Alexander Browne, English-Australian author (b. 1826) 1931 – F. W. Murnau, German-American director, producer, and screenwriter (b. 1888) 1937 – Joseph S. Cullinan, American businessman, co-founded Texaco (b. 1860) 1944 – Hendrik Willem van Loon, Dutch-American journalist and historian (b. 1882) 1944 – Edgar Zilsel, Austrian historian and philosopher of science, linked to the Vienna Circle (b. 1891) 1949 – Henri Giraud, French general and politician (b. 1879) 1952 – Pierre Renoir, French actor and director (b. 1885) 1955 – Alexander Fleming, Scottish biologist, pharmacologist, and botanist, Nobel Prize laureate (b. 1881) 1955 – Oscar F. Mayer, German-American businessman, founded Oscar Mayer (b. 1859) 1956 – Aleksanteri Aava, Finnish poet (b. 1883) 1957 – Richard E. Byrd, American admiral and explorer (b. 1888) 1959 – Lester Dent, American author (b. 1904) 1960 – Roy Chapman Andrews, American paleontologist and explorer (b. 1884) 1967 – Geraldine Farrar, American soprano and actress (b. 1882) 1969 – John Wyndham, English author (b. 1903) 1970 – Erle Stanley Gardner, American lawyer and author (b. 1889) 1971 – Philo Farnsworth, American inventor (b. 1906) 1971 – Whitney Young, American activist (b. 1921) 1982 – Edmund Cooper, English poet and author (b. 1926) 1982 – Horace Gregory, American poet, translator, and academic (b. 1898) 1984 – Gladys Pearl Baker, American film editor and mother of actress Marilyn Monroe (b. 1902) 1986 – Sonny Terry, American singer and harmonica player (b. 1911) 1989 – James Kee, American lawyer and politician (b. 1917) 1989 – John J. McCloy, American lawyer and diplomat (b. 1895) 1992 – Richard Brooks, American director, producer, and screenwriter (b. 1912) 1995 – Myfanwy Talog, Welsh actress and singer (b. 1945) 1996 – Vince Edwards, American actor and director (b. 1928) 1999 – Herbert Jasper, Canadian psychologist, anatomist, and neurologist (b. 1906) 1999 – Camille Laurin, Canadian psychiatrist and politician (b. 1922) 2002 – James Tobin, American economist, Nobel Prize laureate (b. 1918) 2006 – Bernie Geoffrion, Canadian ice hockey player and coach (b. 1931) 2006 – Slobodan Milošević, Serbian lawyer and politician, 3rd President of the Federal Republic of Yugoslavia (b. 1941) 2010 – Hans van Mierlo, Dutch politician, Deputy Prime Minister of the Netherlands (b. 1931) 2012 – James B. Morehead, American colonel and pilot (b. 1916) 2013 – Martin Adolf Bormann, German priest and theologian (b. 1930) 2013 – Simón Alberto Consalvi, Venezuelan journalist and politician, Minister of Foreign Affairs for Venezuela (b. 1927) 2014 – Dean Bailey, Australian footballer and coach (b. 1967) 2014 – Joel Brinkley, American journalist and academic (b. 1952) 2015 – Walter Burkert, German philologist and scholar (b. 1931) 2015 – Jimmy Greenspoon, American singer-songwriter and keyboard player (b. 1948) 2016 – Iolanda Balaș, Romanian high jumper (b. 1936) 2016 – Doreen Massey, English geographer and political activist (b. 1944) 2018 – Ken Dodd, English comedian and singer (b. 1927) 2018 – Siegfried Rauch, German actor (b. 1932) 2018 – Karl Lehmann, German cardinal (b. 1936) 2018 – Mary Rosenblum, American science fiction and mystery author (b. 1952) 2021 – Takis Mousafiris, Greek composer and songwriter (b. 1936) Holidays and observances Christian feast day: Alberta of Agen Constantine Óengus of Tallaght Sophronius of Jerusalem Vindicianus Day of Restoration of Independence from the Soviet Union in 1990 (Lithuania) Moshoeshoe Day (Lesotho) Notes References External links BBC: On This Day Historical Events on March 11 Today in Canadian History Days of the year March

19531

https://en.wikipedia.org/wiki/Monkey%20Island

Monkey Island

Monkey Island is a series of adventure games. The first four games in the series were produced and published by LucasArts, now known as Lucasfilm Games. The fifth installment of the franchise was developed by Telltale Games in collaboration with LucasArts. The games follow the misadventures of the hapless Guybrush Threepwood as he struggles to become the most notorious pirate in the Caribbean, defeat the plans of the evil undead pirate LeChuck and win the heart of Governor Elaine Marley. Each game's plot usually involves the mysterious Monkey Island and its impenetrable secrets. The first game in the series was created as a collaborative effort among Ron Gilbert, Tim Schafer and Dave Grossman. Gilbert worked on the first two games before leaving LucasArts. Grossman and Schafer, who also worked on the first two games, would enjoy success on other games before they both left LucasArts. The rights to Monkey Island remained with LucasArts, and the third and fourth games were created without direct involvement from the original writing staff. Dave Grossman was the project leader of the fifth game in the series and Ron Gilbert was involved with the first design of the game. Overview The Monkey Island series is known for its humor and "player-friendly" qualities. The player cannot permanently place the game in an unwinnable state or cause Guybrush to die without great effort. This "player-friendly" approach was unusual at the time of the first game's release in 1990; prominent adventure-game rivals included Sierra On-Line and Infocom, both of which were known for games with sudden and frequent character deaths or "lock-outs". LucasArts itself used such closed plot paths for its drama games like Indiana Jones and the Last Crusade: The Graphic Adventure (1989), but preferred the open format for other humor-oriented adventure games such as Sam & Max Hit the Road (1993) and Day of the Tentacle (1993). After Monkey Island 2: LeChuck's Revenge in 1991, the series went in hiatus until 1997, when it resumed with The Curse of Monkey Island. After the fourth entry, Escape from Monkey Island, the franchise again went on hiatus, though numerous rumors persisted about a revival until the announcement of Tales of Monkey Island by Telltale Games in early 2009. Much of the music of the games is composed by Michael Land. The score largely consists of reggae, Caribbean and dub-inspired music. The series also tends to break the fourth wall, as several of the characters acknowledge that they are in a video game. Setting Each of the games takes place on fictional islands in the Caribbean around the Golden Age of Piracy sometime between the 17th and 18th centuries, though in the fashion of a theme park: The islands teem with pirates dressed in outfits that seem to come from films and comic books rather than history, and there are many deliberate anachronisms and references to modern-day popular culture. (The theme park motif is particularly strong near the end of the second game, which seems to take place in the service section of a modern-day theme park, concrete tunnels complete with elevators and electric lighting. The third game begins with Guybrush adrift in a bumper car instead of a boat, and ends on a roller coaster ride on Monkey Island. Oblique references from dialogue within the games suggest this theme park motif may have been a misperception stemming from a voodoo curse, but ultimately leaves it unresolved.) The main setting of the Monkey Island games is the "Tri-Island Area", a fictional archipelago in the Caribbean. Since the first game in the series, The Secret of Monkey Island, three of the games have visited the eponymous island of Monkey Island, while all have introduced their own set of islands to explore. Monkey Island 2: LeChuck's Revenge features four new islands, but does not return to Monkey Island until the final cutscene. The Curse of Monkey Island introduces three, and Escape from Monkey Island, which revisits some of the older islands, features three new islands as well. As such, the "Tri-Island area" actually comprises a total of 13 visitable islands. Tales of Monkey Island takes place in a new area of the Caribbean called the "Gulf of Melange". The main islands of the Tri-Island Area are Mêlée Island, Booty Island, and Plunder Island governed by Elaine Marley in place of her long lost grandfather, Horatio Torquemada Marley. Elaine moves from island to island at her convenience, though she considers her governor's mansion on Mêlée Island, the capital island of the area, as home. Other islands in the region are considered under the umbrella of Tri-Island Area as well, even though not directly governed by Elaine include: Lucre Island, Jambalaya Island, Scabb Island, Phatt Island, Hook Island, Skull Island, Knuttin Atoll, Blood Island, Spittle Island and Pinchpenny Island. The Gulf of Melange has its own set of islands: Flotsam Island, the Jerkbait Islands (Spinner Cay, Spoon Island, Roe Island), Brillig Island, Boulder Beach, Isle of Ewe, and the Rock of Gelato. Monkey Island and Dinky Island are not officially part of any island area, but nonetheless are central to the series' overall back-story and canon. Characters The games have a wide cast of characters, many of which reappear throughout the series. Each entry in the series revolves around three main characters: the hero Guybrush Threepwood; his love interest Elaine Marley; and the villain, the Demon/Zombie/Ghost pirate LeChuck. Several other characters such as the Voodoo Lady, Stan the salesman, Murray the Demonic Talking Skull and Herman Toothrot make multiple appearances within the series as well. Inspiration Ron Gilbert's two main inspirations for the story were Disneyland's Pirates of the Caribbean ride and Tim Powers' book On Stranger Tides. The book was the inspiration for the story and characters, while the ride was the inspiration for the ambiance. "[The POTC Ride] keeps you moving through the adventure," Gilbert said in an interview, "but I've always wished I could get off and wander around, learn more about the characters, and find a way onto those pirate ships. So with The Secret of Monkey Island(TM) I wanted to create a game that had the same flavor, but where you could step off the boat and enter that whole storybook world." Several specific references to the ride are made throughout the series, including a puzzle in the second game based on the ride's famous Jail Cell/Dog With Keys scene (the dog in the scene is even named Walt). The banjo music in the opening menu of the third game is also very reminiscent of the banjo music at the beginning of the ride. Additional references are made to Disneyland and theme parks in general throughout the series, including Guybrush finding an E ticket. Media Games The Secret of Monkey Island The series debuted in 1990 with The Secret of Monkey Island on the Amiga, MS-DOS, Atari ST and Macintosh platforms; the game was later ported to FM Towns and Mega-CD (1993). A remake version with updated graphics and new voiceovers was released for PlayStation Network, PC Windows, Xbox Live Arcade and OS X. An iPhone version was also released on July 23, 2009. The game starts off with the main character Guybrush Threepwood stating "I want to be a pirate!" To do so, he must prove himself to three old pirate captains. During the perilous pirate trials, he meets the beautiful governor Elaine Marley, with whom he falls in love, unaware that the ghost pirate LeChuck also has his eyes on her. When Elaine is kidnapped, Guybrush procures crew and ship to track LeChuck down, defeat him and rescue his love. Monkey Island 2: LeChuck's Revenge The second game, Monkey Island 2: LeChuck's Revenge from 1991, was available for fewer platforms; it was only released for PC MS-DOS, Amiga, Macintosh, and later for FM Towns. A Special Edition version, in a similar style as The Secret of Monkey Island: Special Edition, was released in July 2010 for iPhone, iPad, iPod Touch, Mac, PC, PS3 and Xbox 360. As Guybrush, with a treasure chest in hand, and Elaine hang onto ropes in a void, he tells her the story of the game. He has decided to find the greatest of all treasures, that of Big Whoop. Unwittingly, he helps revive LeChuck, who is now in zombie form. Guybrush is eventually captured by his nemesis, but escapes with help from Wally and finds the treasure only to find himself dangling from a rope, as depicted at the beginning of the game. As Guybrush concludes his story, his rope breaks and he finds himself facing LeChuck, whom he finally defeats using voodoo. The surrealistic ending is open to a number of interpretations. In the manual of The Curse of Monkey Island, it is stated that Guybrush falls victim to a hex implemented by LeChuck. The Curse of Monkey Island The Curse of Monkey Island, the third in the series, was exclusively available for PC Windows in 1997 after a 6-year hiatus. The Curse of Monkey Island was released after what could be said to be the biggest technological change in the gaming industry. This new era saw the advent of digital audio, CD-ROM technology, and advancements in graphics. Monkey Island I and II were originally released on floppy discs with text dialog only. The visuals of the third installment was also an advance over the old game, using a cel animation style. The Curse of Monkey Island is the only game in the series to feature this style of animation; subsequent games used 3D polygon animation. Guybrush unwittingly turns Elaine into a gold statue with a cursed ring, and she is soon stolen by pirates. He tracks her down before searching for a ring that can lift the curse. LeChuck appears in a fiery demon form, and is on the heels of Guybrush until a stand-off in LeChuck's amusement park ride, Monkey Mountain. Escape from Monkey Island Escape from Monkey Island, the fourth installment, was released in 2000 for PC Windows, and in 2001 for Macintosh and PlayStation 2. When Guybrush Threepwood and Elaine Marley return from their honeymoon, they find that Elaine has been declared officially dead, her mansion is under destruction order, and her position as governor is up for election. Guybrush investigates and unearths a conspiracy by LeChuck and evil real estate developer Ozzie Mandrill to use a voodoo talisman, "The Ultimate Insult," to make all pirates docile in order to turn the Caribbean into a center of tourism. Tales of Monkey Island Tales of Monkey Island is the fifth installment within the series, co-developed by Telltale Games and LucasArts, with a simultaneous release both on WiiWare and PC. Unlike other installments, Tales is an episodic adventure consisting of five different episodes. The first episode was released on July 7, with the last one released on December 8, 2009. During a heated battle with his nemesis, the evil pirate LeChuck, Guybrush unwittingly unleashes an insidious pox that rapidly spreads across the Caribbean, turning pirates into zombie-like monsters. The Voodoo Lady sends Guybrush in search of a legendary sea sponge to stem the epidemic, but this seemingly straightforward quest has surprises around every corner. Tales of Monkey Island was also released on PlayStation Network as a bundle for US$20.00. Future of the series In November 2011, when CEO of Telltale games Dan Conners was asked a question about another season of Monkey Island, he replied: "I wish we had the rights to do more Monkey but we don't. Right now what I gather is LA is focused on building AAA titles internally but honestly we don't talk much these days." There had also been some speculation on Telltale Games forums about a possible sequel to Tales of Monkey Island, although this was dismissed by Gilbert, who stated, "Basically, when we were working on Tales, I understood that ... I'm too old for that job now" in an interview with Edge in March 2010. The Tales team claims that, despite a considerably increasing fanbase since 2009–10, there are not any plans to continue the series within the next five-year interval. In 2018 Telltale Games closed down. With the purchase of LucasArts by The Walt Disney Company in 2012, the rights to the franchise are now property of Disney. Ron Gilbert has been quoted in November 2012 as not being optimistic about the franchise's future, believing that Disney might abandon the franchise in favour of Pirates of the Caribbean; however, in December 2012, he was also quoted as wishing to contact Disney, hoping to "make the game he wants to make". In May 2016, Disney Interactive announced that they would cease production on gaming and transition to a licensing model. Gilbert then took to Twitter on 23 May 2016 to express a desire to buy back the franchise saying "Please sell me my Monkey Island and Maniac Mansion IP. I'll pay actual money for them.". In 2017, fans of the series launched an online petition in support of Ron Gilbert, asking Disney to sell the franchise to him; as of December 2021, the petition has gathered about 29,000 signatures. In June 2021, the Rareware title Sea of Thieves got its "A Pirate's Life" update. Although the update mostly focuses on Disney's Pirates of the Caribbean franchise, there are multiple references to the characters and locals from the Monkey Island franchise found in journals scattered around the wreckage of The Headless Monkey found during the update's first Tall Tale. According to the journals, Guybrush and Elaine Threepwood are celebrating their honeymoon somewhere upon the Sea of Thieves. Cancelled film Shortly after Pixar, a spinout from Lucasfilm, found success with the first Toy Story film in 1995, there had been a push across Hollywood for more digitally animated films. Lucasfilm's Industrial Light & Magic (ILM), in the midst of transitioning from practical to digital effects, offered its services for producing these films to other studios. One of the first projects they tried to work on was with Universal Pictures to revive the Universal Classic Monsters line with a film called Frankenstein and the Wolfman. While several scripts and preliminary art was produced for this film, shake-ups at Universal due to the financial failure of Babe: Pig in the City led to changes in leadership for the film and ultimately its cancellation. David Carson, who had been set to direct Frankenstein and the Wolfman but left after the Universal shake-up, came back to ILM with the idea of an animated film based on the first Monkey Island game around 2000. With initial support from ILM, Carson worked an initial script with Corey Rosen and Scott Leberecht as to pitch the idea to Amblin Entertainment, the production company owned by Steven Spielberg. Spielberg had told Carson that he had previously told George Lucas that he should have made a Monkey Island movie years before, and other meetings with Amblin went well to proceed to further screenwriting work. The rest of ILM's story department was brought in to help write, including Steve Purcell, but this team worked separately from the writers that were developing the actual games, creating a disconnect between story the film was going with and the narrative already established in the video game series. As they continued to work out the screenplay, the direction of the film continued to verve further from the video game series, including at one point where Spielberg had suggested the game be about the monkeys on Monkey Island instead of the pirates. According to Carson, the lack of a creative direction at this point led to the film being shelved at ILM. Details about the film were first revealed publicly in 2011 as part of the Monkey Island Special Edition Collection which included some of the film's concept art, storyboards, and scripts. It had been rumored that Ted Elliott and Terry Rossio had been involved in the writing of the Monkey Island script which they subsequently used as the basis for the first Pirates of the Caribbean film. Both Elliott and Rossio had been to ILM and were shown parts of the Monkey Island script, around the same time they were working on their script for Pirates. When Pirates was released, many fans of the Monkey Island series made comparisons of parts of the film to the games, and when news of the cancelled film first arose in 2011, the potential connection of Elliott and Rossio to the Monkey Island script started. Both Carson and Rossio stated that many of the tropes in both Monkey Island and Pirates are based on the classic pirate movies and that there was no direct reuse of the cancelled Monkey Island film in Pirates. Common themes The games in the series share several minigames, puzzles, in-jokes, and references. Maps Each game contains a map puzzle, wherein Guybrush must use an unconventional map to find his way through a maze. The first game features a set of dance instructions that point the way through the dense forest of Mêlée Island to find the Island's fabled treasure. In the second game, Guybrush must use a song from a dream sequence to find his way through LeChuck's dungeon. The third game is the reverse of this, as the instructions the player receives are traditional directions and need to be used on a theatre light board. The fourth game has a set of directions based on time, and the fifth based on animal sounds and the direction of the wind and finally a map to get one of the items needed for "The Feast of the Senses". Recipes Each game features a sequence of some sort, where players must gather the ingredients to create an item. Then, later in the game, the player has to create the item again, but this time around with improvised materials. In 'Secret', Guybrush must brew a voodoo concoction but, lacking ingredients, must improvise with the contents of his inventory, leading to amusing puns. In Monkey Island 2, at two points of the game, Guybrush has to create a voodoo doll, one of Largo LaGrande with legitimate ingredients, and one of LeChuck with improvised ingredients. The same goes with the hangover medicine in 'Curse' and the Ultimate Insult in 'Escape'. 'Tales' starts with Guybrush having to obtain fizzy root-beer then dropping it and him having to instead put together some fizzy root-grog. Later 'Tales' requires Guybrush to put together a 'feast of the senses' to increase the size of La Esponja Grande, and later track down a reversed recipe for the 'diet of the senses'. Minigames Each game also contains a minigame based on learning and repetition of a sequence in order to become more proficient: Insult Sword fighting in the first and third games, a number-based "password" as well as a spitting contest in the second, banjo fighting in the third, insult arm wrestling and Monkey Kombat in the fourth, and Pirate Face-Off in the fifth. The first, second and fourth games also feature a puzzle which involves following another character through several locations, a trick also used in Indiana Jones and the Fate of Atlantis. Some other minigames include naval cannon battles, and platform diving. Pop culture references The Monkey Island series is full of spoofs, in-jokes, humorous references, and Easter eggs: so many, in fact, that entire web sites are dedicated to their detection and listing. Running gags include lines such as "Look behind you, a three-headed monkey!", the introduction "My name is Guybrush Threepwood and I'm a mighty pirate", "How appropriate, you fight like a cow", "I'm selling these fine leather jackets" (a reference to Indiana Jones and the Last Crusade: The Graphic Adventure), and "That's the second biggest [object] I've ever seen", a catchphrase from the TV series Get Smart (and in EMI "That's the second largest... No, that IS the largest conch shell I've ever seen!"), and the astounding fact that Guybrush can hold his breath for ten minutes. The Secret of Monkey Island poked fun at rival company Sierra's game-over screens. For example, when Guybrush falls off a cliff, a "game over" window appears, but then Guybrush bounces back to the top of the cliff, explaining that he landed in a "rubber tree". Also, when Guybrush stays underwater for more than ten minutes, he dies and a "game over" dialog box identical to that of Sierra's King's Quest series appears, giving the player an option to restore a saved game and jokingly stating: "Hope you saved the game!" The "stump joke" made fun about the use of multiple floppy disks for one program, but was not initially recognized by gamers as a joke. In "The Secret of Monkey Island", Guybrush comes across a passageway hidden beneath a stump, at which point a screen says to insert Disk No. 114. Later, in "The Curse of Monkey Island", Guybrush looks through a crack in the ceiling of an underground crypt to find himself peeking out of the same stump. Ron Gilbert has openly admitted that sections of Monkey Island 2 borrowed extensively from the original Pirates of the Caribbean Disneyland ride, such as the famous "dog holding the keys to the jail-cell". He has also said that he thought the second movie (Pirates of the Caribbean: Dead Man's Chest) may have 'borrowed' from the Monkey Island series. The opening menu banjo music in Curse is also very reminiscent of the beginning of the Disneyland ride. Each game in the series features cameo appearances by Steve Purcell's characters Sam & Max, who were featured in their own LucasArts adventure game, Sam & Max Hit the Road. These are replaced by the purple tentacle from yet another LucasArts adventure game Day of the Tentacle in the special edition versions. There are many comic references to various Lucas projects, especially Star Wars. For instance, in Monkey Island 2 the Voodoo lady exclaims, "I just felt a sudden disturbance in the Force, as if a tiny, tiny voice just called out in fear," as an homage to Obi-Wan's speech in Star Wars: A New Hope. In Curse, when the player clicks on the fort that has been damaged by cannon fire from LeChuck's ship, Guybrush replies "That's funny, the damage doesn't look as bad from out here," which is a line spoken by the droid C-3PO in the same Star Wars film. When trying to gain access to the Brimstone Beach Club on Plunder Island, Guybrush attempts to use a "Jedi mind trick" on the Cabaña Boy at the entrance. In Part V of Curse, LeChuck says to Guybrush during the opening dialogue "Search yer feelings, you know it to be true!", to which Guybrush replies "Oh no! It can't be!", lines that mirrored the dialogue between Darth Vader and Luke Skywalker in Star Wars V: The Empire Strikes Back. This scene is also reenacted at the end of Monkey Island 2 almost verbatim. In LeChuck's Revenge, the Governor of Phatt Island, Governor Phatt, says in his sleep "Be careful with those snacks, Eugene." in reference to the Pink Floyd song "Careful With That Axe, Eugene." The Secret of Monkey Island None of the games explicitly reveal the "Secret of Monkey Island" (although creator Ron Gilbert has stated that the secret was not revealed in any of the games, and that the true secret would be revealed if he got to work on the fifth entry in the series). LeChuck himself, when asked in the second and third games, refuses to answer the question; Guybrush can eventually prod LeChuck to confess that he does not know what the secret is. Gilbert stated that he never told anyone what the true secret of Monkey Island is. Gilbert stated in a 2004 interview that when the game was originally conceived it was considered "too big", so they split it into three parts. He added that he "knows what the third [part] is" and "how the story's supposed to end," indicating that he had a definite concept of the secret and a conclusive third game. The team behind Escape from Monkey Island attempted to resolve the issue by showing that the Giant Monkey Head was actually the control room of a Giant Monkey Robot. The cut-scene in which the revelation was made is called "The Real Secret of Monkey Island". See also LucasArts adventure games SCUMM ScummVM References LucasArts franchises Video games about skeletons Video game franchises Video games about pirates Video game franchises introduced in 1990 Video games set on fictional islands Video games set in the Caribbean Video games set in the 17th century Video games set in the 18th century

19532

https://en.wikipedia.org/wiki/Cardiff%20Arms%20Park

Cardiff Arms Park

Cardiff Arms Park (), also known as The Arms Park, is situated in the centre of Cardiff, Wales. It is primarily known as a rugby union stadium, but it also has a bowling green. The Arms Park was host to the British Empire and Commonwealth Games in 1958, and hosted four games in the 1991 Rugby World Cup, including the third-place play-off. The Arms Park also hosted the inaugural Heineken Cup Final of 1995–96 and the following year in 1996–97. The history of the rugby ground begins with the first stands appearing for spectators in the ground in 1881–1882. Originally the Arms Park had a cricket ground to the north and a rugby union stadium to the south. By 1969, the cricket ground had been demolished to make way for the present day rugby ground to the north and a second rugby stadium to the south, called the National Stadium. The National Stadium, which was used by Wales national rugby union team, was officially opened on 7 April 1984, however in 1997 it was demolished to make way for the Millennium Stadium in 1999, which hosted the 1999 Rugby World Cup and became the national stadium of Wales. The rugby ground has remained the home of the semi-professional Cardiff RFC yet the professional Cardiff Blues regional rugby union team moved to the Cardiff City Stadium in 2009, but returned three years later. The site is owned by Cardiff Athletic Club and has been host to many sports, apart from rugby union and cricket; they include athletics, association football, greyhound racing, tennis, British baseball and boxing. The site also has a bowling green to the north of the rugby ground, which is used by Cardiff Athletic Bowls Club, which is the bowls section of the Cardiff Athletic Club. The National Stadium also hosted many music concerts including Michael Jackson, Dire Straits, David Bowie, Bon Jovi, The Rolling Stones and U2. History Early history of the site The Cardiff Arms Park site was originally called the Great Park, a swampy meadow behind the Cardiff Arms Hotel. The hotel was built by Sir Thomas Morgan, during the reign of Charles I. Cardiff Arms Park was named after this hotel. From 1803, the Cardiff Arms Hotel and the Park had become the property of the Bute family. The Arms Park soon became a popular place for sporting events, and by 1848, Cardiff Cricket Club was using the site for its cricket matches. However, by 1878, Cardiff Arms Hotel had been demolished. The 3rd Marquess of Bute stipulated that the ground could only be used for "recreational purposes". At that time Cardiff Arms Park had a cricket ground to the north and a rugby union ground to the south. 1881–2 saw the first stands for spectators; they held 300 spectators and cost £50. The architect was Archibald Leitch, famous for designing Ibrox Stadium and Old Trafford, among others. In 1890, new standing areas were constructed along the entire length of the ground, with additional stands erected in 1896. 1912 redevelopment By 1912, the Cardiff Football Ground, as it was then known, had a new south stand and temporary stands on the north, east and west ends of the ground. The south stand was covered, while the north terrace was initially without a roof. The improvements were partly funded by the Welsh Rugby Union (WRU). The opening ceremony took place on 5 October 1912, with a match between Newport RFC and Cardiff RFC. The new ground was opened by Lord Ninian Crichton-Stuart. This new development increased the ground capacity to 43,000 and much improved facilities at the ground compared to the earlier stands. In 1922, The 4th Marquess of Bute sold the entire site and it was bought by the Cardiff Arms Park Company Limited for £30,000. It was then leased to the Cardiff Athletic Club (cricket and rugby sections) for 99 years at a cost of £200 per annum. North and South Stand redevelopments During 1934 the cricket pavilion had been demolished to make way for the new North Stand which was built on the rugby union ground, costing around £20,000. However, in 1941 the new North Stand and part of the west terracing was badly damaged in the Blitz by the Luftwaffe during the Second World War. At a general meeting of the WRU in June 1953 they made a decision "That until such time as the facilities at Swansea were improved, all international matches be played at Cardiff". At the same time, plans were made for a new South Stand which was estimated to cost £60,000; the tender price, however, came out at £90,000, so a compromise was made and it was decided to build a new upper South Stand costing £64,000 instead, with the Cardiff Athletic Club contributing £15,000 and the remainder coming from the WRU. The new South Stand opened in 1956, in time for the 1958 British Empire and Commonwealth Games. This brought the overall capacity of the Arms Park up to 60,000 spectators, of which 12,800 were seated and the remainder standing. The Arms Park hosted the 1958 British Empire and Commonwealth Games, which was used for the athletics events, but this event caused damage to the drainage system, so much so, that other rugby unions (England, Scotland and Ireland) complained after the Games about the state of the pitch. On 4 December 1960, due to torrential rain, the River Taff burst its banks with the Arms Park pitch being left under of water. The Development Committee was set up to resolve these issues on a permanent basis. They looked at various sites in Cardiff, but they all proved to be unsatisfactory. They also could not agree a solution with the Cardiff Athletic Club, so they purchased about of land at Island Farm in Bridgend, which was previously used as a prisoner-of-war camp. It is best known for being the camp where the biggest escape attempt was made by German prisoners of war in Great Britain during the Second World War. Due to problems including transport issues Glamorgan County Council never gave outline planning permission for the proposals and by June 1964 the scheme was abandoned. At that stage, the cricket ground to the north was still being used by Glamorgan County Cricket Club, and the rugby union ground to the south was used by the national Wales team and Cardiff RFC. By 7 October 1966, the first floodlit game was held at Cardiff Arms Park, a game in which Cardiff RFC beat the Barbarians by 12 points to 8. National Stadium redevelopment The National Stadium, which was also known as the Welsh National Rugby Ground, was designed by Osborne V Webb & Partners and built by G A Williamson & Associates of Porthcawl and Andrew Scott & Company of Port Talbot. After agreement from the Cardiff Athletic Club, the freehold of the south ground was transferred solely to the WRU in July 1968. Work could then begin on the new National Stadium. Glamorgan County Cricket Club would move to Sophia Gardens and the cricket ground to the north would be demolished and a new rugby union stadium built for Cardiff RFC, who would move out of the south ground, allowing the National Stadium to be built, for the sole use of the national rugby union team. On 17 October 1970, the new North Stand and the Cardiff RFC ground was completed, the North Stand cost just over £1 million. The West Stand was opened in 1977 and the new East Terrace was completed by March 1980. By the time the final South Stand had been completed and the stadium officially opened on 7 April 1984, the South Stand had cost £4.5 million. At the start of the project, the total cost was estimated at £2.25 million, although by time it was finished in 1984, it had risen by nearly four times that amount. Both stadia had approximately east–west alignment: the rugby ground to the north (Castle Street) end; the National Stadium to the south (Wood Street) end. The original capacity was 65,000 but this had to be reduced in later years to 53,000 for safety reasons. 11,000 of these were on the East Terrace and the conversion to all-seater stadium would have reduced the stadium capacity still further to 47,500. This capacity would have been much less than Twickenham and the other major rugby venues and also less than the demand for tickets to major events. A world record crowd of 56,000 for a rugby union club match watched Llanelli RFC beat Neath RFC by 28 to 13 points in the final of the Schweppes Cup (WRU Challenge Cup) on 7 May 1988. The first evening game to be played under floodlights was held on 4 September 1991 at 8.00 pm, between Wales and France. The last international match to be held at the National Stadium was between Wales and England on 15 March 1997, and the last ever match that was held at the National Stadium was on 26 April 1997 between Cardiff and Swansea, Cardiff won the SWALEC Cup (WRU Challenge Cup) by 33 to 26 points. Millennium Stadium In 1997, just thirteen years after the National Stadium had opened, it was considered too small and did not have the facilities required of the time and it was demolished and a new stadium, the Millennium Stadium, was built in its place (completed to a north–south alignment and opened in June 1999). This would become the fourth redevelopment on the site. Construction involved the demolition of a number of buildings, primarily the existing National Stadium, Wales Empire Pool in Wood Street, Cardiff Empire Telephone Exchange building and the newly built Territorial Auxiliary & Volunteer Reserve building both in Park Street, and the Social Security offices in Westgate Street. The Millennium Stadium is now on roughly two-thirds of the National Stadium, but it no longer uses the Arms Park name. Since 2016 it has been known as the Principality Stadium. Current site Rugby ground Only the rugby ground and the Cardiff Athletic Bowls Club now use the name Cardiff Arms Park. The rugby ground has two main stands, the North Stand and the South Stand. Both the Stands have terracing below seating. The other stands in the ground are the Westgate Street end Family Stand, which has rows of seating below executive boxes, plus the club shop, and the River Taff end (the Barry Nelmes Suite, named after Barry Nelmes, the former Cardiff RFC captain), which has 26 executive boxes. The rugby ground has two main entrances, the south entrance, and the Gwyn Nicholls Memorial Gates (Angel Hotel entrance), which was unveiled on 26 December 1949 in honour of the Welsh international rugby player Gwyn Nicholls. The Cardiff Athletic Clubhouse is situated in the corner of the ground between the South Stand and the Westgate Street end. The South Stand of the rugby ground formed a complete unit with the North Stand of the National Stadium. Now the same structure of the South Stand of the rugby ground is also physically attached to the North Stand of the Millennium Stadium. This section is known colloquially as Glanmor's Gap, after Glanmor Griffiths, former chair and President of the WRU. This came about because the WRU were unable to secure enough funding to include the North Stand in the Millennium Stadium, and the National Lottery Commission would not provide any additional funds to be used for the construction of a new ground for Cardiff RFC. The Millennium Stadium was therefore built with the old reinforced concrete structure of the National Stadium (North Stand) and the new steel Millennium Stadium structure built around it. There was doubt about the future of the Arms Park after 2010 following the move of the Cardiff Blues to the Cardiff City Stadium. Cardiff RFC Ltd, the company that runs Cardiff Blues and Cardiff RFC, still has a 15-year lease on the Arms Park, but talks are underway to release the rugby club from the terms of the lease, to enable the Millennium Stadium to be redeveloped with a new North Stand and adjoining convention centre. However, it still has the original requirement on the lease, that the land will only be used for "recreational purposes", as stipulated by the Bute family. But the Arms Park site is a prime piece of real estate in the centre of Cardiff, which means that it may be difficult to sell the land to property developers. The estimated value of the whole Arms Park site could be at least £25 million, although with the "recreational use" requirement, its actual value could be a lot less than that figure. A decision by Cardiff Athletic Club on the future of the Arms Park has yet to be made. In 2011, the Cardiff Blues regional rugby union team made a £6 million bid for the Arms Park, later the WRU made an increased bid of £10 million for the site. Both bids were rejected by the trustees of the Cardiff Athletic Club. However, in 2012 Cardiff Blues announced that they would be making a permanent return to Cardiff Arms Park following declining attendances at the Cardiff City Stadium. In the 2013 off-season, the pitch at the Arms Park was replaced with an artificial FieldTurf surface, intended to prevent any adverse weather conditions from affecting the rugby. Proposed redevelopment An agreement in principle was reached in December 2015 between the landlord of the stadium site (Cardiff Athletic Club) and its tenant (Cardiff Blues) to give the club a 150-year lease on the stadium site. This could see the redevelopment of the Arms Park, including a new 15,000 seater stadium at 90 degrees to the existing stadium costing between £20 million and £30 million and surrounded by new offices and apartments. If the final agreement goes ahead, Cardiff Athletic Club would receive an upfront payment of approximately £8 million. As part of the agreement, the bowls section would have to vacate its current site at the Arms Park and move to a new facility. At present Cardiff Blues pay Cardiff Athletic Club rent of around £115,000 per annum, however this would nearly double to around £200,000. Bowling green Cardiff Arms Park is best known as a rugby union stadium, but Cardiff Athletic Bowls Club (CABC) was established in 1923, and ever since then, the club has used the Arms Park as its bowling green. The bowls club is a section of the Cardiff Athletic Club and shares many of the facilities of the Cardiff Arms Park athletics centre. The Les Spence Memorial Gates were erected in memory of the former Cardiff RFU player, who captained the team in 1936–37. He was born in 1907 and became chairman of the Cardiff RFU and president of the WRU between 1973 and 1974. He was awarded an MBE and died in 1988. The club has produced two Welsh international bowlers; Mr. C Standfast in 1937 and Mr. B Hawkins who represented Wales in the 1982 World Pairs and captained Wales in 1982 and 1984. Usage Association football The Riverside Football Club, founded in 1899, played some matches at the Arms Park until 1910, when they moved to Ninian Park, and later became Cardiff City Football Club. On 31 May 1989, Wales played its first international game against West Germany at the National Stadium in a World Cup qualifying match, which ended goalless. It was also the first ever international football match held in Great Britain that was watched by all-seater spectators. The adjoining Cardiff Rugby Club ground has also been used for Association Football. In July 1995, Ton Pentre played two Intertoto Cup games there, against Heerenveen (Netherlands) and Uniao Leiria (Portugal) as their own ground was not suitable. The Heerenveen game - the first ever soccer match to be played there - kicked off at 6pm on Saturday 1 July 1995 and resulted in the Dutch side winning 7–0. The Wales U-21 team have also played a home game there in the late 1990s. Athletics In 1958, the British Empire and Commonwealth Games were held in Cardiff. The event was (to date) the biggest sporting event ever held in Wales; however, it would not have been possible without the financial support given by the WRU and the Cardiff Athletic Club. Both the opening and closing ceremonies took place at Cardiff Arms Park, plus all the track and field events, on what had been the greyhound track. It would turn out to be the last time that South Africa would participate in the Games until 1994. South Africa withdrew from the Commonwealth Games in 1961. Baseball & British baseball Baseball was established early on in Cardiff, and one of the earliest of games to be held at the Arms Park was on 18 May 1918. It was a charity match in aid of the Prisoner of War Fund between Welsh and American teams of the U.S. Beaufort & U.S. Jupiter. British baseball matches have also regularly taken place at the Arms Park and hosted the annual England versus Wales international game every four years. The games are now usually held at Roath Park. Boxing The first boxing contest held at the Arms Park was on 24 January 1914, when Bombardier Billy Wells beat Gaston Pigot by a knockout in the first round of a 20-round contest. Boxing contests were held later on 14 June 1943, 12 August 1944, 4 October 1951 and 10 September 1952. Around 25,000 spectators watched international boxing on 1 October 1993, at the National Stadium with a World Boxing Council (WBC) Heavyweight title bout between Lennox Lewis and Frank Bruno. It was the first time that two British-born boxers had fought for the world heavyweight title. Lewis beat Bruno by a technical knockout in the 7th round, in what was called the "Battle of Britain". On 30 September 1995, Steve Robinson the World Boxing Organization (WBO) World Featherweight Champion, lost against Prince Naseem Hamed at the rugby ground in 8 rounds. Cricket In 1819 Cardiff Cricket Club was formed and by 1848 they had moved to their new home at the Arms Park. Glamorgan County Cricket Club, at the time not a first-class county, played their first match at the ground in June 1869 against Monmouthshire Cricket Club. The county club played their first County Championship match on the ground in 1921, competing there every season (except while first-class cricket was suspended during the Second World War) until their final match on the ground against Somerset in August 1966. Cardiff Cricket Club played their final game at the ground against Lydney Cricket Club on 17 September 1966. Both Cardiff Cricket Club and Glamorgan then moved to a new ground at Sophia Gardens on the opposite bank of the River Taff to the Arms Park following work on the creation of the national rugby stadium. The first first-class cricket match to be held on the ground was between West of England and East of England, on 20 June 1910. In all more than 240 first-class matches were played on the ground, all but two involving Glamorgan as the home team. Only one List A cricket match was played on the ground, Glamorgan's Gillette Cup fixture against Somerset on 22 May 1963. Greyhound racing Greyhound racing took place at the Arms Park for fifty years from 1927 until 1977. Rugby union In 1876, the Cardiff RFC was formed and soon after they also used the park. On 12 April 1884, the first international match was played at the ground between Wales and Ireland, when 5,000 people watched Wales beat Ireland by two tries and a drop goal to nil. The Arms Park rugby ground became the permanent home of the Wales national rugby union team in 1964. Later, the National Stadium was also home to the WRU Challenge Cup from 1972 until the match held at the Stadium on 26 April 1997, at a much reduced capacity, between Cardiff RFC and Swansea RFC. Cardiff RFC won the match 33–26. The National Stadium is best known as the venue for what is considered to be "the greatest try ever scored" by Gareth Edwards for the Barbarians against New Zealand in what is also called "the greatest match ever played" on 27 January 1973. The final result was a win for the Barbarians. The score, 23–11, which translates to 27–13 in today's scoring system. The scorers were: Barbarians: Tries: Gareth Edwards, Fergus Slattery, John Bevan, J P R Williams; Conversions: Phil Bennett (2); Penalty: Phil Bennett. All Blacks: Tries: Grant Batty (2); Penalty: Joseph Karam. The National Stadium hosted four games in the 1991 Rugby World Cup, including the third-place play-off. The National Stadium was also host to the inaugural Heineken Cup final of 1995–96 when Toulouse beat Cardiff RFC by 21–18 after extra time, in front of 21,800 spectators. The following final in 1996–97 was also held at the National Stadium, this time it was between Brive and Leicester Tigers. Brive won the match 28–9, in front of a crowd of 41,664. In 2008, the rugby ground hosted all the games in Pool A of the 2008 IRB Junior World Championship and also the semi-final on 18 June 2008, in which England beat South Africa 26–18. Until February 2012, it had been assumed that the last professional rugby union game to take place at the Arms Park was on 17 May 2009, when Edinburgh beat the Cardiff Blues 36–14 in a Celtic League match during the 2008–09 season. However, on Tuesday, 7 February 2012, it was confirmed that Cardiff Blues would face Connacht at the Arms Park on Friday, 10 February 2012. The Pro12 League game result was a win for the Cardiff Blues 22–15 and attendance of 8,000. The following Tuesday, it was announced that the match against Ulster on Friday, 17 February, would also be at the Arms Park, resulting in a Blues win, 21–14 and attendance of 8,600. The agreement signed during 2009 tied Cardiff Blues to a 20-year contract to play a maximum of 18 games per season for a set fee, rather than per match at Cardiff City Stadium. But on 23 February, it was announced that the two Welsh 'derbies' against the Scarlets and the Ospreys would be played at Cardiff City Stadium, rather than the Arms Park, because of Cardiff Blues' anticipation that the attendance figures would far exceed the maximum capacity of 9,000. On 8 May 2012, it was announced that Cardiff Blues would be returning to the Arms Park on a permanent basis after just three years at the Cardiff City Stadium. On 23 May 2014, the rugby ground hosted the final of the 2013–14 Amlin Challenge Cup in which Northampton Saints beat Bath 30–16. Rugby World Cup Cardiff Arms Park hosted matches of the 1991 Rugby World Cup. Rugby league South Wales Scorpions played a Rugby League Championship 1 match against London Skolars at Cardiff Arms Park on Sunday, 27 July 2014 and on Sunday 10 May 2015 at Cardiff Arms Park, South Wales Scorpions took on North Wales Crusaders. The 2015 European Cup match between France and Wales was held at Cardiff Arms Park on Friday, 30 October 2015 at 18:30 GMT. The highest attendance for a rugby league game at the Arms Park was recorded on 8 June 1996 during the first Super League season when 6,708 saw St. Helens defeat the Sheffield Eagles 43–32. The St Helens team at the time contained Welsh players Anthony Sullivan, Karle Hammond and Keiron Cunningham. Rugby league test matches List of rugby league test matches played at Cardiff Arms Park. Tennis Tennis courts were laid out in the Arms Park for Cardiff Tennis Club until the club moved to Sophia Gardens in 1967. In 2003, the club amalgamated with Lisvane Tennis Club to form Lisvane (CAC) Tennis Club, which is still a section of Cardiff Athletic Club (CAC). Music concerts Major music concerts were also held at the National Stadium from 1987 until 1996, they included Tina Turner, U2, Michael Jackson, The Rolling Stones, Dire Straits, Bon Jovi and R.E.M. The last music concert was held on 14 July 1996. Jehovah's Witnesses held their annual conventions at the National Stadium. Singing tradition The National Stadium was known primarily as the venue for massed voices singing such hymns as "Cwm Rhondda", "Calon Lân", "Men of Harlech" and "Hen Wlad Fy Nhadau" ("Land of my Fathers" – the national anthem of Wales). The legendary atmosphere including singing of the crowd was said to be worth at least a try or a goal to the home nation. This tradition of singing has now passed on to the Millennium Stadium. The Arms Park has its own choir, called the Cardiff Arms Park Male Choir. It was formed in 1966 as the Cardiff Athletic Club Male Voice Choir, and today performs internationally with a schedule of concerts and tours. In 2000, the choir changed their name to become the Cardiff Arms Park Male Choir. See also List of Commonwealth Games venues Sport in Cardiff Notes References Harris, K. M. The Story of the Development of the National Rugby Ground, 7 April 1984. Cover of the booklet on www.rugbyrelics.com External links Photographs of the National Stadium in April 1997, prior to demolition Gareth Edwards try for the Barbarians Vs All Blacks, 27 January 1973, at the National Stadium, Cardiff Arms Park Cardiff Arms Park Male Choir website The opening ceremony of the 1958 British Empire and Commonwealth Games, Cardiff Arms Park wikimapia.org image of Cardiff Arms Park Bill Hardiman (groundsman) profile Principality Stadium Rugby league stadiums in Wales Rugby union stadiums in Wales Rugby World Cup stadiums Wales Stadiums of the Commonwealth Games Sports venues in Cardiff Stadiums in Cardiff Cardiff Rugby Cardiff RFC Glamorgan County Cricket Club Welsh Cup final venues Sports venues demolished in 1997 Defunct greyhound racing venues in the United Kingdom Defunct football venues in Wales Defunct cricket grounds in Wales Cricket grounds in Glamorgan Sports venues completed in 1969 Greyhound racing in Wales Wales national rugby union team Former music venues in Cardiff

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https://en.wikipedia.org/wiki/Mikhail%20Kalashnikov

Mikhail Kalashnikov

Mikhail Timofeyevich Kalashnikov (; 10 November 1919 – 23 December 2013) was a Soviet and Russian lieutenant general, inventor, military engineer, writer, and small arms designer. He is most famous for developing the AK-47 assault rifle and its improvements, the AKM and AK-74, as well as the PK machine gun and RPK light machine gun. Kalashnikov was, according to himself, a self-taught tinkerer who combined innate mechanical skills with the study of weaponry to design arms that achieved battlefield ubiquity. Even though Kalashnikov felt sorrow at the weapons' uncontrolled distribution, he took pride in his inventions and in their reputation for reliability, emphasizing that his rifle is "a weapon of defense" and "not a weapon for offense". Early life Kalashnikov was born in the village of Kurya, in present-day Altai Krai, Russia, as the seventeenth child of the 19 children of Aleksandra Frolovna Kalashnikova (née Kaverina) and Timofey Aleksandrovich Kalashnikov, who were peasants. In 1930, his father and most of his family had their properties confiscated and were deported as kulaks to the village of Nizhnyaya Mokhovaya, Tomsk Oblast. In his youth, Mikhail suffered from various illnesses and was on the verge of death at age six. He was attracted to all kinds of machinery, but also wrote poetry, dreaming of becoming a poet. He went on to write six books and continued to write poetry all of his life. After deportation to Tomsk Oblast, his family had to combine farming with hunting, and thus Mikhail frequently used his father's rifle in his teens. Kalashnikov continued hunting into his 90s. After completing seventh grade, Mikhail, with his stepfather's permission, left his family and returned to Kurya, hiking for nearly 1,000 km. In Kurya, he found a job in mechanics at a tractor station. A party organizer embedded within the factory noticed the man's dexterity and issued him a directive (napravlenie) to work at a nearby weapons design bureau, where he was employed as a tester of fitted stocks in rifles. In 1938, he was conscripted into the Red Army. Because of his small size and engineering skills he was assigned as a tank mechanic, and later became a tank commander. While training, he made his first inventions, which concerned not only tanks, but also small weapons, and was personally awarded a wrist watch by Georgy Zhukov. Kalashnikov served on the T-34s of the 24th Tank Regiment, 108th Tank Division stationed in Stryi before the regiment retreated after the Battle of Brody in June 1941. He was wounded in combat in the Battle of Bryansk in October 1941 and hospitalised until April 1942. In the last few months of being in hospital, he overheard some fellow soldiers bemoaning their current rifles, which were plagued with reliability issues, such as jamming. As he continued to overhear the complaints that the Soviet soldiers had, as soon as he was discharged, he went to work on what would become the famous AK-47 assault rifle. Seeing the drawbacks of the standard infantry weapons at the time, he decided to construct a new rifle for the Soviet military. During this time Kalashnikov began designing a submachine gun. Although his first submachine gun design was not accepted into service, his talent as a designer was noticed. From 1942 onwards, Kalashnikov was assigned to the Central Scientific-developmental Firing Range for Rifle Firearms of the Chief Artillery Directorate of the Red Army. In 1944, he designed a gas-operated carbine for the new 7.62×39mm cartridge. This weapon, influenced by the M1 Garand rifle, lost out to the new Simonov carbine which would be eventually adopted as the SKS; but it became a basis for his entry in an assault rifle competition in 1946. His winning entry, the "Mikhtim" (so named by taking the first letters of his name and patronymic, Mikhail Timofeyevich) became the prototype for the development of a family of prototype rifles. This process culminated in 1947, when he designed the AK-47 (standing for Avtomat Kalashnikova model 1947). In 1949, the AK-47 became the standard issue assault rifle of the Soviet Army and went on to become Kalashnikov's most famous invention. While developing his first assault rifles, Kalashnikov competed with two much more experienced weapon designers, Vasily Degtyaryov and Georgy Shpagin, who both accepted the superiority of the AK-47. Kalashnikov named Alexandr Zaitsev and Vladimir Deikin as his major collaborators during those years. Later career From 1949, Mikhail Kalashnikov lived and worked in Izhevsk, Udmurtia. He held a degree of Doctor of Technical Sciences (1971) and was a member of 16 academies. Over the course of his career, he evolved the basic design into a weapons family. The AKM (), first brought into service in 1959, was lighter and cheaper to manufacture, owing to the use of a stamped steel receiver (in place of the AK-47's milled steel receiver) and contained detail improvements such as a re-shaped stock and muzzle compensator. From the AKM, he developed a squad automatic weapon variant, known as the RPK (). He also developed the general-purpose PK machine gun (), which used the more powerful 7.62×54mmR cartridge of the Mosin–Nagant rifle. It is cartridge belt-fed, not magazine-fed, as it is intended to provide heavy sustained fire from a tripod mount, or be used as a light, bipod-mounted weapon. The common characteristics of all these weapons are simple design, ruggedness and ease of maintenance in all operating conditions. Approximately 100 million AK-47 assault rifles had been produced by 2009, and about half of them are counterfeit, manufactured at a rate of about a million per year. Izhmash, the official manufacturer of AK-47 in Russia, did not patent the weapon until 1997, and in 2006 accounted for only 10% of the world's production. This arm became famous due to its reliability in the most extreme climatic conditions, functioning as perfectly in the desert as in the tundra. It is in official use by the militaries of 55 nations, and has been so influential in military struggle that it has been used on national flags. Prominent examples include the flags of Mozambique and Hezbollah, as well as the East Timorese and Zimbabwean coats of arms. Kalashnikov himself claimed he was always motivated by service to his country rather than money, and made no direct profit from weapon production. He did however own 30% of a German company Marken Marketing International (MMI) run by his grandson Igor. The company revamps trademarks and produces merchandise carrying the Kalashnikov name, such as vodka, umbrellas and knives. One of the items is a knife named for the AK-74. During a visit to the United States in the early 2000s, Kalashnikov was invited to tour a Virginia holding site for the forthcoming American Wartime Museum. Kalashnikov, a former tank commander, became visibly moved at the sight of his old tank in action, painted with his name in Cyrillic. Death After a prolonged illness, Kalashnikov was hospitalized on 17 November 2013, in an Udmurtian medical facility in Izhevsk, the capital of Udmurtia and where he lived. He died 23 December 2013, at age 94 from gastric hemorrhage. In January 2014, a letter that Kalashnikov wrote six months before his death to the leader of the Russian Orthodox Church, Patriarch Kirill, was published by the Russian daily newspaper Izvestia. In the letter, he stated that he was suffering "spiritual pain" about whether he was responsible for the deaths caused by the weapons he created. Translated from the published letter he states, "I keep having the same unsolved question: if my rifle claimed people's lives, then can it be that I... a Christian and an Orthodox believer, was to blame for their deaths?" The patriarch wrote back, thanked Kalashnikov, and said that he "was an example of patriotism and a correct attitude toward the country". Kirill added about the design responsibility for the deaths by the rifle, "the church has a well-defined position when the weapon is defense of the Motherland, the Church supports its creators and the military, which use it." He became one of the first people buried in the Federal Military Memorial Cemetery. Family Kalashnikov's father, Timofey Aleksandrovich Kalashnikov (1883–1930), was a peasant. He completed two grades of parochial school and could read and write. In 1901, he married Aleksandra Frolovna Kaverina (1884–1957), who was illiterate throughout her life. They had 19 children, but only eight survived to adult age; Kalashnikov was born 17th, and was close to death at age six. In 1930, the government labeled Timofey Aleksandrovich a kulak, confiscated his property, and deported him to Siberia, along with most of the family. The eldest three siblings, daughters Agasha (b. 1905) and Anna and son Victor, were already married by 1930, and remained in Kuriya. After her husband's death in 1930, Aleksandra Frolovna married Efrem Kosach, a widower who had three children of his own. Mikhail Kalashnikov married twice, the first time to Ekaterina Danilovna Astakhova of Altai Krai. He married the second time to Ekaterina Viktorovna Moiseyeva (1921–1977). She was an engineer and did much technical drawing work for her husband. They had four children: daughters Nelli (b. 1942), Elena (b. 1948) and Natalya (1953–1983), and a son Victor (1942–2018). Victor also became a prominent small arms designer. The title to the AK-47 trademark belonged to Mikhail Kalashnikov's family until 4 April 2016, when the Kalashnikov Concern won a lawsuit to invalidate the registration of the trademark. Weapon designs During his career, Kalashnikov designed about 150 models of small weapons. The most famous of them are: AK-47 AKM AK-74 / AKS-74U / AK-74M / AKS-74 AK-101 / AK-102 AK-103 / AK-104 AK-105 AK-12 RPK / RPK-74 PK / PKM / PKP Saiga semi-automatic rifle Awards and tribute Incorporates information from the corresponding article in the Russian Wikipedia Recipients of the Order of St. Andrew In 1998, he was awarded an Order of Saint Andrew the Protoclete On his 90th birthday on 10 November 2009, Kalashnikov was named a "Hero of the Russian Federation" and presented with a medal by President Dmitry Medvedev who lauded him for creating "the brand every Russian is proud of" In 2012, Izhevsk State Technical University was named after Kalashnikov On 7 November 2014 a statue of Kalashnikov was unveiled at the Russian 102nd Military Base in Gyumri, Armenia. Armenian Defense Minister Seyran Ohanyan attended the opening ceremony. On 19 September 2017 a monument of Kalashnikov was unveiled in Garden Ring, central Moscow. A protester, later detained by police, attempted to unfurl a banner reading "a creator of weapons is a creator of death". Russian Federation Decorations Hero of the Russian Federation (2009) Order of St. Andrew (2008) Order For Merit to the Fatherland, Second Class (1994) Order of Military Merit (Russia) (2004) Awards State Prize of the Russian Federation in the field of design (1997) Award of the President of the Russian Federation in the field of education (2003) All-Russian Literary Prize of Suvorov (2009) Honorary diplomas Diploma of the Government of the Russian Federation (1997, 1999) Medals Jubilee Medal "50 Years of Victory in the Great Patriotic War 1941–1945" Medal "Symbol of Science" (2007) Gold Medal of Zhukov Medal "For outstanding contribution to the development of the collection business in Russia" Acknowledgements Gratitude of the President of the Russian Federation (1997,1999,2002,2007) Soviet Honors Hero of Socialist Labour (1958, 1976) Order of Lenin (1958, 1969, 1976) Order of the October Revolution (1974) Order of the Red Star (1949) Order of the Patriotic War, 1st Class (1985) Order of the Red Banner of Labour (1957) Order of Friendship of Peoples (1982) Medals Medal "Hammer and Sickle" (1958,1976) Medal "For Victory over Germany in the Great Patriotic War of 1941–1945" Medal "Twenty Years of Victory in the Great Patriotic War 1941–1945" Medal "In commemoration of the 100th anniversary of the birth of Vladimir Ilyich Lenin" Jubilee Medal "Thirty Years of Victory in the Great Patriotic War 1941–1945" Jubilee Medal "Forty Years of Victory in the Great Patriotic War 1941–1945" Medal "For Distinction in Guarding the State Border of the USSR" Medal "Veteran of Labor" on behalf of the Presidium of the Supreme Soviet of the USSR Jubilee Medal "30 years of the Soviet Army and Navy" Jubilee Medal "40 years of the Armed Forces of the USSR" Jubilee Medal "50 Years of the Armed Forces of the USSR" Jubilee Medal "60 Years of the Armed Forces of the USSR" Jubilee Medal "70 years of the Armed Forces of the USSR" Medal "In Commemoration of the 800th anniversary of Moscow" Awards Stalin Prize (1949) Lenin Prize (1964) Foreign decorations Order of Honour of Belarus (1999) Order of Friendship, First Class (2003) Other honors the home of Mikhail Kalashnikov in the village he set Courier lifetime bronze bust (1980) the name of the designer named projected prospect in Izhevsk (1994) "Honorary Citizen of the Altai Territory" (1997) Ministry of Economy of Russia award – The sign "of small arms designer Mikhail Kalashnikov" (1997) Union of scientific and engineering organizations and the Government of Udmurtia established an award named after Mikhail Kalashnikov (1999) Diamond company "Alrosa" extracted 29 December 1995 gem diamonds weighing 50.74 carats given the name "designer Mikhail Kalashnikov" (14.5 x 15, 0h15, 5 mm, quality Stones Black) (1999) Mikhail Kalashnikov Cadet School in Votkinsk (2002) Award in his name at the School of Weapon Skills of Izhevsk (2002) Izhevsk State Cultural Institution "Museum of Mikhail Kalashnikov" "Honorary Engineer of Kazakhstan" (Kazakhstan; 2004) Gift from President Hugo Chávez, the highest award of the Republic – a copy of the famous sword of Simon Bolivar, which is a relic of Venezuela and the copy is equal to the highest award of the country (2009) The name of Mikhail Kalashnikov was given to the military department of the Mining Institute in St. Petersburg (2009) Izhevsk State Technical University was awarded the name of Mikhail Kalashnikov (2012) German knife company Boker has dedicated a series to him (2013) The companies that make Kalashnikov rifles, Izhmash and Izhevsk Mechanical Plant were merged and formally renamed Kalashnikov Concern. (2013) References Further reading Ружье. Оружие и амуниция double/special issue of 1997/5-6 has a fairly complete inventory of Kalashnikov's designs. Issues 1 and 2 of the same magazine from 1999 have articles on Kalashnikov's 1st sub-machine gun (1942) and respectively his first rifle (1944–45) . External links M.T. Kalashnikov Museum and Exhibition Small Arms Complex 'I sleep soundly' – Interview with and article on Mikhail Kalashnikov at the age of 83, from The Guardian newspaper. Mikhail Kalashnikov backs weapons control BBC NEWS Profile: Mikhail Kalashnikov Free illustrated virtual guided tour of the Museum of Mikhail Kalashnikov The life of Mikhail Kalashnikov Mikhail Kalashnikov with Elena Joly: The Gun that Changed the World 7,62 мм ручной пулемет М.Т. Калашникова. 1944 г. Kalashikov model 1944 light machine gun—his 2nd design. The Economist: Obituary 11 January 2014 Mikhail Timofeyevich Kalashnikov, weapons inventor, died on 23 December, aged 94 1919 births 2013 deaths Firearm designers Heroes of Socialist Labour Heroes of the Russian Federation People from Kuryinsky District Communist Party of the Soviet Union members Russian lieutenant generals Russian inventors Russian Orthodox Christians from Russia Soviet engineers 20th-century Russian engineers Soviet military personnel of World War II Weapons scientists and engineers Soviet inventors Tank commanders Stalin Prize winners Lenin Prize winners Recipients of the Order "For Merit to the Fatherland", 2nd class Recipients of the Order of Friendship of Peoples Recipients of the Order of Lenin Recipients of the Order of the Red Banner of Labour Burials at the Federal Military Memorial Cemetery

19537

https://en.wikipedia.org/wiki/MUD

MUD

A MUD (; originally multi-user dungeon, with later variants multi-user dimension and multi-user domain) is a multiplayer real-time virtual world, usually text-based or storyboarded. MUDs combine elements of role-playing games, hack and slash, player versus player, interactive fiction, and online chat. Players can read or view descriptions of rooms, objects, other players, non-player characters, and actions performed in the virtual world. Players typically interact with each other and the world by typing commands that resemble a natural language. Traditional MUDs implement a role-playing video game set in a fantasy world populated by fictional races and monsters, with players choosing classes in order to gain specific skills or powers. The objective of this sort of game is to slay monsters, explore a fantasy world, complete quests, go on adventures, create a story by roleplaying, and advance the created character. Many MUDs were fashioned around the dice-rolling rules of the Dungeons & Dragons series of games. Such fantasy settings for MUDs are common, while many others have science fiction settings or are based on popular books, movies, animations, periods of history, worlds populated by anthropomorphic animals, and so on. Not all MUDs are games; some are designed for educational purposes, while others are purely chat environments, and the flexible nature of many MUD servers leads to their occasional use in areas ranging from computer science research to geoinformatics to medical informatics to analytical chemistry. MUDs have attracted the interest of academic scholars from many fields, including communications, sociology, law, and economics. At one time, there was interest from the United States military in using them for teleconferencing. Most MUDs are run as hobbies and are free to play; some may accept donations or allow players to purchase virtual items, while others charge a monthly subscription fee. MUDs can be accessed via standard telnet clients, or specialized MUD clients, which are designed to improve the user experience. Numerous games are listed at various web portals, such as The Mud Connector. The history of modern massively multiplayer online role-playing games (MMORPGs) like EverQuest and Ultima Online, and related virtual world genres such as the social virtual worlds exemplified by Second Life, can be traced directly back to the MUD genre. Indeed, before the invention of the term MMORPG, games of this style were simply called graphical MUDs. A number of influential MMORPG designers began as MUD developers and/or players (such as Raph Koster, Brad McQuaid, Matt Firor, and Brian Green) or were involved with early MUDs (like Mark Jacobs and J. Todd Coleman). Early history Origins Colossal Cave Adventure, created in 1975 by Will Crowther on a DEC PDP-10 computer, was the first widely used adventure game. The game was significantly expanded in 1976 by Don Woods. Also called Adventure, it contained many D&D features and references, including a computer controlled dungeon master. Numerous dungeon crawlers were created on the PLATO system at the University of Illinois and other American universities that used PLATO, beginning in 1975. Among them were "pedit5", "oubliette", "moria", "avatar", "krozair", "dungeon", "dnd", "crypt", and "drygulch". By 1978–79, these games were heavily in use on various PLATO systems, and exhibited a marked increase in sophistication in terms of 3D graphics, storytelling, user involvement, team play, and depth of objects and monsters in the dungeons. Inspired by Adventure, a group of students at MIT in the summer of 1977 wrote a game for the PDP-10 minicomputer; called Zork, it became quite popular on the ARPANET. Zork was ported, under the filename DUNGEN ("dungeon"), to FORTRAN by a programmer working at DEC in 1978. In 1978 Roy Trubshaw, a student at the University of Essex in the UK, started working on a multi-user adventure game in the MACRO-10 assembly language for a DEC PDP-10. He named the game MUD (Multi-User Dungeon), in tribute to the Dungeon variant of Zork, which Trubshaw had greatly enjoyed playing. Trubshaw converted MUD to BCPL (the predecessor of C), before handing over development to Richard Bartle, a fellow student at the University of Essex, in 1980. The game revolved around gaining points till one achieved the Wizard rank, giving the character immortality and special powers over mortals. Wider access and early derivatives MUD, better known as Essex MUD and MUD1 in later years, ran on the University of Essex network, and became more widely accessible when a guest account was set up that allowed users on JANET (a British academic X.25 computer network) to connect on weekends and between the hours of 2 AM and 8 AM on weekdays. It became the first Internet multiplayer online role-playing game in 1980, when the university connected its internal network to ARPANet. The original MUD game was closed down in late 1987, reportedly under pressure from CompuServe, to whom Richard Bartle had licensed the game. This left MIST, a derivative of MUD1 with similar gameplay, as the only remaining MUD running on the University of Essex network, becoming one of the first of its kind to attain broad popularity. MIST ran until the machine that hosted it, a PDP-10, was superseded in early 1991. 1985 saw the origin of a number of projects inspired by the original MUD. These included Gods by Ben Laurie, a MUD1 clone that included online creation in its endgame, and which became a commercial MUD in 1988; and MirrorWorld, a tolkienesque MUD started by Pip Cordrey who gathered some people on a BBS he ran to create a MUD1 clone that would run on a home computer. Neil Newell, an avid MUD1 player, started programming his own MUD called SHADES during Christmas 1985, because MUD1 was closed down during the holidays. Starting out as a hobby, SHADES became accessible in the UK as a commercial MUD via British Telecom's Prestel and Micronet networks. A scandal on SHADES led to the closure of Micronet, as described in Indra Sinha's net-memoir, The Cybergypsies. At the same time, Compunet started a project named Multi-User Galaxy Game as a science fiction alternative to MUD1, a copy of which they were running on their system at the time. When one of the two programmers left CompuNet, the remaining programmer, Alan Lenton, decided to rewrite the game from scratch and named it Federation II (at the time no Federation I existed). The MUD was officially launched in 1989. Federation II was later picked up by AOL, where it became known simply as Federation: Adult Space Fantasy. Federation later left AOL to run on its own after AOL began offering unlimited service. Other early MUD-like games In 1978, around the same time Roy Trubshaw wrote MUD, Alan E. Klietz wrote a game called Scepter (Scepter of Goth), and later called Milieu using Multi-Pascal on a CDC Cyber 6600 series mainframe which was operated by the Minnesota Educational Computing Consortium. Klietz ported Milieu to an IBM XT in 1983, naming the new port Scepter of Goth. Scepter supported 10 to 16 simultaneous users, typically connecting in by modem. It was the first commercial MUD; franchises were sold to a number of locations. Scepter was first owned and run by GamBit (of Minneapolis, Minnesota), founded by Bob Alberti. GamBit's assets were later sold to Interplay Productions. In 1984, Mark Peterson wrote The Realm of Angmar, beginning as a clone of Scepter of Goth. In 1994, Peterson rewrote The Realm of Angmar, adapting it to MS-DOS (the basis for many dial-in BBS systems), and renamed it Swords of Chaos. For a few years this was a very popular form of MUD, hosted on a number of BBS systems, until widespread Internet access eliminated most BBSes. In 1984, Mark Jacobs created and deployed a commercial gaming site, Gamers World. The site featured two games coded and designed by Jacobs, a MUD called Aradath (which was later renamed, upgraded and ported to GEnie as Dragon's Gate) and a 4X science-fiction game called Galaxy, which was also ported to GEnie. At its peak, the site had about 100 monthly subscribers to both Aradath and Galaxy. GEnie was shut down in the late 1990s, although Dragon's Gate was later brought to AOL before it was finally released on its own. Dragon's Gate was closed on February 10, 2007. In the summer of 1980, University of Virginia classmates John Taylor and Kelton Flinn wrote Dungeons of Kesmai, a six player game inspired by Dungeons & Dragons which used roguelike ASCII graphics. They founded the Kesmai company in 1982 and in 1985 an enhanced version of Dungeons of Kesmai, Island of Kesmai, was launched on CompuServe. Later, its 2-D graphical descendant Legends of Kesmai was launched on AOL in 1996. The games were retired commercially in 2000. The popularity of MUDs of the University of Essex tradition escalated in the United States during the late 1980s when affordable personal computers with 300 to 2400 bit/s modems enabled role-players to log into multi-line BBSs and online service providers such as CompuServe. During this time it was sometimes said that MUD stands for "Multi Undergraduate Destroyer" due to their popularity among college students and the amount of time devoted to them. Avalon: The Legend Lives was published by Yehuda Simmons in 1989. It was the first persistent game world of its kind without the traditional hourly resets and points-based puzzle solving progression systems. Avalon introduced equilibrium and balance (cooldowns), skill-based player vs player combat and concepts such as player-run governments and player housing. Popular variants AberMUD The first popular MUD codebase was AberMUD, written in 1987 by Alan Cox, named after the University of Wales, Aberystwyth. Alan Cox had played the original University of Essex MUD, and the gameplay was heavily influenced by it. AberMUD was initially written in B for a Honeywell L66 mainframe under GCOS3/TSS. In late 1988 it was ported to C, which enabled it to spread rapidly to many Unix platforms upon its release in 1989. AberMUD's popularity resulted in several inspired works, the most notable of which were TinyMUD, LPMud, and DikuMUD. TinyMUD Monster was a multi-user adventure game created by Richard Skrenta for the VAX and written in VMS Pascal. It was publicly released in November 1988. Monster was disk-based and modifications to the game were immediate. Monster pioneered the approach of allowing players to build the game world, setting new puzzles or creating dungeons for other players to explore. Monster, which comprised about 60,000 lines of code, had a lot of features which appeared to be designed to allow Colossal Cave Adventure to work in it. Though there never were many network-accessible Monster servers, it inspired James Aspnes to create a stripped-down version of Monster which he called TinyMUD. TinyMUD, written in C and released in late 1989, spawned a number of descendants, including TinyMUCK and TinyMUSH. TinyMUCK version 2 contained a full programming language named MUF (Multi-User Forth), while MUSH greatly expanded the command interface. To distance itself from the combat-oriented traditional MUDs it was said that the "D" in TinyMUD stood for Multi-User "Domain" or "Dimension"; this, along with the eventual popularity of acronyms other than MUD (such as MUCK, MUSH, MUSE, and so on) for this kind of server, led to the eventual adoption of the term MU* to refer to the TinyMUD family. UberMUD, UnterMUD, and MOO were inspired by TinyMUD but are not direct descendants. TinyMUD is also used to refer to the first database run under the TinyMUD codebase, which is also known as TinyMUD Classic; it ran from August 1989 to April 1990, and still comes back up every August during a holiday called Brigadoon Day, a reference to the Scottish village in the musical Brigadoon. Hourglass The first version of Hourglass was written by Yehuda Simmons and later Daniel James for Avalon: The Legend Lives which debuted in 1989 at the last of the London MUD mega Meets aptly named Adventure '89 and initially hosted on the IOWA system. Initially written in ARM assembly language on the Acorn Archimedes 440, in 1994 it made the leap from the venerable Archimedes to Debian Linux on the PC and later Red Hat where, other than shifting to Ubuntu, it has remained ever since. An early version of Hourglass was also ported to the PC, named Vortex, by Ben Maizels in 1992. Although written specifically for Avalon: The Legend Lives, it went on to spawn a number of games, including Avalon: The First Age, which ran from 1999 to 2014. The now defunct 1996 Age of Thrones and notably Achaea, Dreams of Divine Lands started life in Vortex prior to moving to its own Rapture engine. Hourglass continues to be developed as of 2016 and Avalon: The Legend Lives currently has 2,901,325 written words and 2,248,374 lines of game code (with 2,417,900 instructions). The original game came in at 1 KB in 1989, compared to 102 GB in January 2016. LPMud In 1989, LPMud was developed by Lars Pensjö (hence the LP in LPMud). Pensjö had been an avid player of TinyMUD and AberMUD and wanted to create a world with the flexibility of TinyMUD and the gameplay of AberMUD. In order to accomplish this he wrote what is nowadays known as a virtual machine, which he called the LPMud driver, that ran the C-like LPC programming language used to create the game world. Pensjö's interest in LPMud eventually waned and development was carried on by others such as Jörn "Amylaar" Rennecke, Felix "Dworkin" Croes, Tim "Beek" Hollebeek and Lars Düning. During the early 1990s, LPMud was one of the most popular MUD codebases. Descendants of the original LPMud include MudOS, DGD, SWLPC, FluffOS, and the Pike programming language, the latter the work of long-time LPMud developer Fredrik "Profezzorn" Hübinette. DikuMUD In 1990, the release of DikuMUD, which was inspired by AberMUD, led to a virtual explosion of hack and slash MUDs based upon its code. DikuMUD inspired numerous derivative codebases, including CircleMUD, Merc, ROM, SMAUG, and GodWars. The original Diku team comprised Sebastian Hammer, Tom Madsen, Katja Nyboe, Michael Seifert, and Hans Henrik Staerfeldt. DikuMUD had a key influence on the early evolution of the MMORPG genre, with EverQuest (created by avid DikuMUD player Brad McQuaid) displaying such Diku-like gameplay that Verant developers were made to issue a sworn statement that no actual DikuMUD code was incorporated. Simutronics In 1987, David Whatley, having previously played Scepter of Goth and Island of Kesmai, founded Simutronics with Tom and Susan Zelinski. In the same year they demonstrated a prototype of GemStone to GEnie. After a short-lived instance of GemStone II, GemStone III was officially launched in February 1990. GemStone III became available on AOL in September 1995, followed by the release of DragonRealms in February 1996. By the end of 1997 GemStone III and DragonRealms had become the first and second most played games on AOL. Gameplay The typical MUD will describe to the player the room or area they are standing in, listing the objects, players and non-player characters (NPCs) in the area, as well as all of the exits. To carry out a task the player would enter a text command such as take apple or attack dragon. Movement around the game environment is generally accomplished by entering the direction (or an abbreviation of it) in which the player wishes to move, for example typing north or just n would cause the player to exit the current area via the path to the north. are computer applications that make the MUD telnet interface more accessible to users, with features such as syntax highlighting, keyboard macros, and connection assistance. Prominent clients include TinyTalk, TinyFugue, Tintin, and zMUD. Style While there have been many variations in overall focus, gameplay and features in MUDs, some distinct sub-groups have formed that can be used to help categorize different game mechanics, game genres and non-game uses. Hack and slash MUDs Perhaps the most common approach to game design in MUDs is to loosely emulate the structure of a Dungeons & Dragons campaign focused more on fighting and advancement than role-playing. When these MUDs restrict player-killing in favor of player versus environment conflict and questing, they are labeled hack and slash MUDs. This may be considered particularly appropriate since, due to the room-based nature of traditional MUDs, ranged combat is typically difficult to implement, resulting in most MUDs equipping characters mainly with close-combat weapons. This style of game was also historically referred to within the MUD genre as "adventure games", but video gaming as a whole has developed a meaning of "adventure game" that is greatly at odds with this usage. Player versus player MUDs Most MUDs restrict player versus player combat, often abbreviated as PK (Player Killing). This is accomplished through hard coded restrictions and various forms of social intervention. MUDs without these restrictions are commonly known as PK MUDs. Taking this a step further are MUDs devoted solely to this sort of conflict, called pure PK MUDs, the first of which was Genocide in 1992. Genocide ideas were influential in the evolution of player versus player online gaming. Roleplaying MUDs Roleplaying MUDs, generally abbreviated as RP MUDs, encourage or enforce that players act out the role of their playing characters at all times. Some RP MUDs provide an immersive gaming environment, while others only provide a virtual world with no game elements. MUDs where roleplay is enforced and the game world is heavily computer-modeled are sometimes known as roleplay intensive MUDs, or RPIMUDs. In many cases, role-playing MUDs attempt to differentiate themselves from hack and slash types, by dropping the "MUD" name entirely, and instead using MUX (Multi-User Experience) or MUSH (Multi-User Shared Hallucination). Social MUDs Social MUDs de-emphasize game elements in favor of an environment designed primarily for socializing. They are differentiated from talkers by retaining elements beyond online chat, typically online creation as a community activity and some element of role-playing. Often such MUDs have broadly defined contingents of socializers and roleplayers. Server software in the TinyMUD family, or MU*, is traditionally used to implement social MUDs. Talkers A less-known MUD variant is the talker, a variety of online chat environment typically based on server software like ew-too or NUTS. Most of the early Internet talkers were LPMuds with the majority of the complex game machinery stripped away, leaving just the communication commands. The first Internet talker was Cat Chat in 1990. Educational MUDs Taking advantage of the flexibility of MUD server software, some MUDs are designed for educational purposes rather than gaming or chat. MicroMUSE is considered by some to have been the first educational MUD, but it can be argued that its evolution into this role was not complete until 1994, which would make the first of many educational MOOs, Diversity University in 1993, also the first educational MUD. The MUD medium lends itself naturally to constructionist learning pedagogical approaches. The Mud Institute (TMI) was an LPMud opened in February 1992 as a gathering place for people interested in developing LPMud and teaching LPC after it became clear that Lars Pensjö had lost interest in the project. TMI focussed on both the LPMud driver and library, the driver evolving into MudOS, the TMI Mudlib was never officially released, but was influential in the development of other libraries. Graphical MUDs A graphical MUD is a MUD that uses computer graphics to represent parts of the virtual world and its visitors. A prominent early graphical MUD was Habitat, written by Randy Farmer and Chip Morningstar for Lucasfilm in 1985. Graphical MUDs require players to download a special client and the game's artwork. They range from simply enhancing the user interface to simulating 3D worlds with visual spatial relationships and customized avatar appearances. Games such as Meridian 59, EverQuest, Ultima Online and Dark Age of Camelot were routinely called graphical MUDs in their earlier years. RuneScape was actually originally intended to be a text-based MUD, but graphics were added very early in development. However, with the increase in computing power and Internet connectivity during the late 1990s, and the shift of online gaming to the mass market, the term "graphical MUD" fell out of favor, being replaced by MMORPG, Massively Multiplayer Online Role-Playing Game, a term coined by Richard Garriott in 1997. Development Within a MUD's technical infrastructure, a mudlib (concatenation of "MUD library") defines the rules of the in-game world. Examples of mudlibs include Ain Soph Mudlib, CDlib, Discworld Mudlib, Lima Mudlib, LPUniversity Mudlib, MorgenGrauen Mudlib, Nightmare Mudlib, and TMI Mudlib. Community MUD history has been preserved primarily through community sites and blogs and not through mainstream sources with journalistic repute. As of the late 1990s, a website called The Mud Connector has served as a central and curated repository for active MUDs. In 1995, The Independent reported that over 60,000 people regularly played about 600 MUDs, up from 170 MUDs three years prior. The Independent also noted distinct patterns of socialization within MUD communities. Seraphina Brennan of Massively wrote that the MUD community was "in decline" as of 2009. Psychology and engagement Sherry Turkle developed a theory that the constant use (and in many cases, overuse) of MUDs allows users to develop different personalities in their environments. She uses examples, dating back to the text-based MUDs of the mid-1990s, showing college students who simultaneously live different lives through characters in separate MUDs, up to three at a time, all while doing schoolwork. The students claimed that it was a way to "shut off" their own lives for a while and become part of another reality. Turkle claims that this could present a psychological problem of identity for today's youths. "A Story About A Tree" is a short essay written by Raph Koster regarding the death of a LegendMUD player named Karyn, raising the subject of inter-human relationships in virtual worlds. Observations of MUD-play show styles of play that can be roughly categorized. Achievers focus on concrete measurements of success such as experience points, levels, and wealth; Explorers investigate every nook and cranny of the game, and evaluate different game mechanical options; Socializers devote most of their energy to interacting with other players; and then there are Killers who focus on interacting negatively with other players, if permitted, killing the other characters or otherwise thwarting their play. Few players play only one way, or play one way all the time; most exhibit a diverse style. According to Richard Bartle, "People go there as part of a hero's journey—a means of self-discovery". Research has suggested that various factors combine in MUDs to provide users with a sense of presence rather than simply communication. Grammatical usage and derived terms As a noun, the word MUD is variously written MUD, Mud, and mud, depending on speaker and context. It is also used as a verb, with to mud meaning to play or interact with a MUD and mudding referring to the act of doing so. A mudder is, naturally, one who MUDs. Compound words and portmanteaux such as mudlist, mudsex, and mudflation are also regularly coined. Puns on the "wet dirt" meaning of "mud" are endemic, as with, for example, the names of the ROM (Rivers of MUD), MUCK, MUSH, and CoffeeMUD codebases and the MUD Muddy Waters. See also MUD trees Chronology of MUDs Bartle Test Online text-based role-playing game Integrated development environment Virtual economy Cyberformance Digital architecture References Bibliography External links Source code repositories Erwin S. Andreasen: Home of the 16k MUD competition, and other resources. MudBytes.net: MUD code repository and discussion. Resources The Mud Connector: Extensive mud portal with hundreds of mud listings Top Mud Sites: MUD listings, reviews, discussion forum and rankings by category. MUDseek: Google custom search engine indexing MUD and MUD-related web sites. MUD Stats: MUD statistics. MUDbase Multiplayer online games Telnet Video game genres

19541

https://en.wikipedia.org/wiki/Muslims

Muslims

Muslims () are people who follow or practice Islam, an Abrahamic monotheistic religion. The word "Muslim" derives from Arabic and means "submitter (to God)". Muslims consider the Quran, their holy book, to be the verbatim word of God as revealed to the Islamic prophet and messenger Muhammad. The majority of Muslims also follow the teachings and practices of Muhammad (sunnah) as recorded in traditional accounts (hadith). As of 2015, 1.8 billion or about 24.1% of the world population are Muslims. By the percentage of the total population in a region considering themselves Muslim, 91% in the Middle East–North Africa (MENA), 81% in Central Asia, 65% in the Caucasus, 40% in Southeast Asia, 31% in South Asia, 30% in Sub-Saharan Africa, 25% in Asia and Oceania collectively, around 6% in Europe, and 1% in the Americas. Most Muslims are of one of two denominations; Sunni (75–90%) and Shia (10–20%). About 12% of Muslims live in Indonesia, the largest Muslim-majority country; % of Muslims live in South Asia, the largest population of Muslims in the world; % in the Middle East–North Africa, where it is the dominant religion; and 15% in Sub-Saharan Africa. Muslims are the overwhelming majority in Central Asia, the majority in the Caucasus and widespread in Southeast Asia. India is the country with the largest Muslim population outside Muslim-majority countries. Sizeable Muslim communities are also found in the Americas, China, and Europe. Islam is the fastest-growing major religion in the world. Etymology The word muslim (, ; , , or moslem , ) is the active participle of the same verb of which islām is a verbal noun, based on the triliteral S-L-M "to be whole, intact". A female adherent is a muslima () (also transliterated as "Muslimah" ). The plural form in Arabic is muslimūn () or muslimīn (), and its feminine equivalent is muslimāt (). The ordinary word in English is "Muslim". In the 20th century the preferred spelling in English was "Moslem", but this has now fallen into disuse. The word Mosalman (, alternatively Mussalman) is a common equivalent for Muslim used in Central and South Asia. In English it was sometimes spelled Mussulman and has become archaic in usage. Until at least the mid-1960s, many English-language writers used the term Mohammedans or Mahometans. Although such terms were not necessarily intended to be pejorative, Muslims argue that the terms are offensive because they allegedly imply that Muslims worship Muhammad rather than God. Other obsolete terms include Muslimite and Muslimist. In Medieval Europe, Muslims were commonly called Saracens. The Muslim philosopher Ibn Arabi said: Qualifier To become a Muslim and to convert to Islam, it is essential to utter the Shahada, one of the Five Pillars of Islam, a declaration of faith and trust that professes that there is only one God (Allah) and that Muhammad is God's messenger. It is a set statement normally recited in Arabic: ašhadu ʾal-lā ʾilāha ʾillā-llāhu wa ʾašhadu ʾanna muħammadan rasūlu-llāh () "I testify that there is no god [worthy of worship] except Allah, and Muhammad is the messenger of Allah." In Sunni Islam, the shahada has two parts: la ilaha illa'llah (there is no god but Allah), and Muhammadun rasul Allah (Muhammad is the messenger of God), which are sometimes referred to as the first shahada and the second shahada. The first statement of the shahada is also known as the tahlīl. In Shia Islam, the shahada also has a third part, a phrase concerning Ali, the first Shia Imam and the fourth Rashid caliph of Sunni Islam: (), which translates to "Ali is the wali of God". In Quranist Islam, the shahada is the testimony that there is no god but Allah (la ilaha illa'llah ). The religious practices of Muslims are enumerated in the Five Pillars of Islam: the declaration of faith (shahadah), daily prayers (salah), almsgiving (zakat), fasting during the month of Ramadan (sawm), and the pilgrimage to Mecca (hajj) at least once in a lifetime. In Islamic theology The Qur'an describes many prophets and messengers within Judaism and Christianity, and their respective followers, as Muslim. Some of those that were mentioned are: Adam, Noah, Abraham, Ishmael, Jacob, Moses, and Jesus and his apostles are all considered to be Muslims in the Qur'an. The Qur'an states that these men were Muslims because they submitted to God, preached His message and upheld His values, which included praying, charity, fasting and pilgrimage. Thus, in Surah 3:52 of the Qur'an, Jesus' disciples tell him, "We believe in God; and you be our witness that we are Muslims (wa-shahad be anna muslimūn)." In Islamic belief, before the Qur'an, God had given the Tawrat (Torah) to Moses, the Zabur (Psalms) to David and the Injil (Gospel) to Jesus, who are all considered important Muslim prophets. Demographics The most populous Muslim-majority country is Indonesia, home to 12.7% of the world's Muslims, followed by Pakistan (11.0%), Bangladesh (9.2%), Nigeria (5.3%) and Egypt (4.9%). About 20% of the world's Muslims live in the Middle East and North Africa. Sizable minorities are also found in India, China, Ethiopia, the Americas, Australia and parts of Europe. The country with the highest proportion of self-described Muslims as a proportion of its total population is Morocco. Over 75–90% of Muslims are Sunni. The second and third largest sects, Shia and Ahmadiyya, make up 10–20%, and 1% respectively. With about 1.8 billion followers (2019), almost a quarter of earth's population, Islam is the second-largest and the fastest-growing religion in the world, primarily due to the young age and high fertility rate of Muslims, with Muslims having a rate of (3.1) compared to the world average of (2.5). According to the same study, religious switching has no impact on Muslim population, since the number of people who embrace Islam and those who leave Islam are roughly equal. A Pew Center study in 2016 found that Muslims have the highest number of adherents under the age of 15 (34% of the total Muslim population) of any major religion, while only 7% are aged 60+ (the smallest percentage of any major religion). According to the same study, Muslims have the highest fertility rates (3.1) of any major religious group. The study also found that Muslims (tied with Hindus) have the lowest average levels of education with an average of 5.6 years of schooling, though both groups have made the largest gains in educational attainment in recent decades among major religions. About 36% of all Muslims have no formal schooling, and Muslims have the lowest average levels of higher education of any major religious group, with only 8% having graduate and post-graduate degrees. Culture Muslim culture or Islamic culture are terms used to describe the cultural practices common to Muslims and historically Islamic people. The early forms of Muslim culture, from the Rashidun Caliphate to early Umayyad period, were predominantly Arab, Byzantine, Persian and Levantine. With the rapid expansion of the Islamic empires, Muslim culture has influenced and assimilated much from the Persian, Egyptian, Caucasian, Turkic, Mongol, South Asian, Malay, Somali, Berber, Indonesian, and Moro cultures. See also Cultural Muslim Islamic schools and branches Muhammadan Lists of Muslims List of converts to Islam Muslim holidays Muslim world Mu'min Persecution of Muslims References External links Ritual Prayer: Its Meaning and Manner – The Islamic Supreme Council of America. Muhammad and the First Muslim Ummah – University of Chicago Islamophobia Today Newspaper – An Islamophobia news clearing house Sammy Aziz Rahmatti, Understanding and Countering Islamophobia WikiSaurus:Muslim Quranic words and phrases Religious identity

19542

https://en.wikipedia.org/wiki/MUSH

MUSH

In multiplayer online games, a MUSH (a backronymed variation on MUD most often expanded as Multi-User Shared Hallucination, though Multi-User Shared Hack, Habitat, and Holodeck are also observed) is a text-based online social medium to which multiple users are connected at the same time. MUSHes are often used for online social intercourse and role-playing games, although the first forms of MUSH do not appear to be coded specifically to implement gaming activity. MUSH software was originally derived from MUDs; today's two major MUSH variants are descended from TinyMUD, which was fundamentally a social game. MUSH has forked over the years and there are now different varieties with different features, although most have strong similarities and one who is fluent in coding one variety can switch to coding for the other with only a little effort. The source code for most widely used MUSH servers is open source and available from its current maintainers. A primary feature of MUSH codebases that tends to distinguish it from other multi-user environments is the ability, by default, of any player to extend the world by creating new rooms or objects and specifying their behavior in the MUSH's internal scripting language. Another is the default lack of much player or administrative hierarchy imposed by the server itself. The programming language for MUSH, usually referred to as "MUSHcode" or "softcode" (to distinguish it from "hardcode"the language in which the MUSH server itself is written) was developed by Larry Foard. TinyMUSH started life as a set of enhancements to the original TinyMUD code. "MUSHcode" is similar in syntax to Lisp. Most customization is done in "softcode" rather than by directly modifying the hardcode. Roleplay Traditionally, roleplay consists of a series of "poses". Each character makes a "pose"that is, writes a description of speech, actions, etc. which the character performs. Special commands allow players to print OOC (out of character) messages, distinguished by a prefixed string from IC (in character) action. This medium borrows traits from both improvisational stage acting and writing. Roleplaying is one of the primary activities of MUSHes, along with socializing. There is nothing in the code base that restricts a new MUSH from being a traditional hack-and-slash MUD-style game. However, the earliest uses of MUSH servers were for roleplaying and socializing, and these early trends have largely governed their descendants. A large number of roleplaying MUSHes have custom combat systems and other tools coded by their administrators in order to further encourage roleplay. However, as roleplay is the primary goal, many MUSHes have varying ideas of how these programs are used. Administration All MUSH servers provide a flag that, when set on a player, bestows the ability to view and modify nearly everything in the game's database. Such players are usually called Wizards, and typically form the basis for the MUSH administration. Software Maintainers and developers of MUSH servers have traditionally shared ideas with one another, so most MUSH servers include concepts or code developed originally in other servers. There is particular interest in ensuring that common MUSHcode features work similarly across servers. PennMUSH, TinyMUSH, TinyMUX and RhostMUSH are all open-source MUSH servers. Some enthusiasts may exclude one or more of the above on the basis of distribution method, name, or parentage, but all are free-form MUSH servers. See also TinyMUD – the ancestor to MUSH servers. MOO MUCK MUD Online text-based role-playing game Online creation MUSHclient References External links PennMUSH developed from TinyMUD and PernMUSH at University of Pennsylvania, and later at University of California, Berkeley and University of Illinois at Chicago. TinyMUSH 3.0 through 3.3 (currently in alpha stage of development) derive from a merger of TinyMUSH 2.2.5 and TinyMUX 1.6, both of which ultimately derive from TinyMUD. TinyMUX 2.0 through 2.9 derive from TinyMUX 1.6. TinyMUX 1.0 through 1.6 were developed from a fork of TinyMUSH 2.0 10p6 and ultimately from TinyMUD. BattletechMUX A TinyMUX 1.6 derived codebase with real-time Battletech extensions. RhostMUSH developed from TinyMUD, then TinyMUSE. It is currently opensource. Multiplayer online games MU* servers Online chat

19544

https://en.wikipedia.org/wiki/Microevolution

Microevolution

Microevolution is the change in allele frequencies that occurs over time within a population. This change is due to four different processes: mutation, selection (natural and artificial), gene flow and genetic drift. This change happens over a relatively short (in evolutionary terms) amount of time compared to the changes termed macroevolution. Population genetics is the branch of biology that provides the mathematical structure for the study of the process of microevolution. Ecological genetics concerns itself with observing microevolution in the wild. Typically, observable instances of evolution are examples of microevolution; for example, bacterial strains that have antibiotic resistance. Microevolution may lead to speciation, which provides the raw material for macroevolution. Difference from macroevolution Macroevolution is guided by sorting of interspecific variation ("species selection"), as opposed to sorting of intraspecific variation in microevolution. Species selection may occur as (a) effect-macroevolution, where organism-level traits (aggregate traits) affect speciation and extinction rates, and (b) strict-sense species selection, where species-level traits (e.g. geographical range) affect speciation and extinction rates. Macroevolution does not produce evolutionary novelties, but it determines their proliferation within the clades in which they evolved, and it adds species-level traits as non-organismic factors of sorting to this process. Four processes Mutation Mutations are changes in the DNA sequence of a cell's genome and are caused by radiation, viruses, transposons and mutagenic chemicals, as well as errors that occur during meiosis or DNA replication. Errors are introduced particularly often in the process of DNA replication, in the polymerization of the second strand. These errors can also be induced by the organism itself, by cellular processes such as hypermutation. Mutations can affect the phenotype of an organism, especially if they occur within the protein coding sequence of a gene. Error rates are usually very low—1 error in every 10–100 million bases—due to the proofreading ability of DNA polymerases. (Without proofreading error rates are a thousandfold higher; because many viruses rely on DNA and RNA polymerases that lack proofreading ability, they experience higher mutation rates.) Processes that increase the rate of changes in DNA are called mutagenic: mutagenic chemicals promote errors in DNA replication, often by interfering with the structure of base-pairing, while UV radiation induces mutations by causing damage to the DNA structure. Chemical damage to DNA occurs naturally as well, and cells use DNA repair mechanisms to repair mismatches and breaks in DNA—nevertheless, the repair sometimes fails to return the DNA to its original sequence. In organisms that use chromosomal crossover to exchange DNA and recombine genes, errors in alignment during meiosis can also cause mutations. Errors in crossover are especially likely when similar sequences cause partner chromosomes to adopt a mistaken alignment making some regions in genomes more prone to mutating in this way. These errors create large structural changes in DNA sequence—duplications, inversions or deletions of entire regions, or the accidental exchanging of whole parts between different chromosomes (called translocation). Mutation can result in several different types of change in DNA sequences; these can either have no effect, alter the product of a gene, or prevent the gene from functioning. Studies in the fly Drosophila melanogaster suggest that if a mutation changes a protein produced by a gene, this will probably be harmful, with about 70 percent of these mutations having damaging effects, and the remainder being either neutral or weakly beneficial. Due to the damaging effects that mutations can have on cells, organisms have evolved mechanisms such as DNA repair to remove mutations. Therefore, the optimal mutation rate for a species is a trade-off between costs of a high mutation rate, such as deleterious mutations, and the metabolic costs of maintaining systems to reduce the mutation rate, such as DNA repair enzymes. Viruses that use RNA as their genetic material have rapid mutation rates, which can be an advantage since these viruses will evolve constantly and rapidly, and thus evade the defensive responses of e.g. the human immune system. Mutations can involve large sections of DNA becoming duplicated, usually through genetic recombination. These duplications are a major source of raw material for evolving new genes, with tens to hundreds of genes duplicated in animal genomes every million years. Most genes belong to larger families of genes of shared ancestry. Novel genes are produced by several methods, commonly through the duplication and mutation of an ancestral gene, or by recombining parts of different genes to form new combinations with new functions. Here, domains act as modules, each with a particular and independent function, that can be mixed together to produce genes encoding new proteins with novel properties. For example, the human eye uses four genes to make structures that sense light: three for color vision and one for night vision; all four arose from a single ancestral gene. Another advantage of duplicating a gene (or even an entire genome) is that this increases redundancy; this allows one gene in the pair to acquire a new function while the other copy performs the original function. Other types of mutation occasionally create new genes from previously noncoding DNA. Selection Selection is the process by which heritable traits that make it more likely for an organism to survive and successfully reproduce become more common in a population over successive generations. It is sometimes valuable to distinguish between naturally occurring selection, natural selection, and selection that is a manifestation of choices made by humans, artificial selection. This distinction is rather diffuse. Natural selection is nevertheless the dominant part of selection. The natural genetic variation within a population of organisms means that some individuals will survive more successfully than others in their current environment. Factors which affect reproductive success are also important, an issue which Charles Darwin developed in his ideas on sexual selection. Natural selection acts on the phenotype, or the observable characteristics of an organism, but the genetic (heritable) basis of any phenotype which gives a reproductive advantage will become more common in a population (see allele frequency). Over time, this process can result in adaptations that specialize organisms for particular ecological niches and may eventually result in the speciation (the emergence of new species). Natural selection is one of the cornerstones of modern biology. The term was introduced by Darwin in his groundbreaking 1859 book On the Origin of Species, in which natural selection was described by analogy to artificial selection, a process by which animals and plants with traits considered desirable by human breeders are systematically favored for reproduction. The concept of natural selection was originally developed in the absence of a valid theory of heredity; at the time of Darwin's writing, nothing was known of modern genetics. The union of traditional Darwinian evolution with subsequent discoveries in classical and molecular genetics is termed the modern evolutionary synthesis. Natural selection remains the primary explanation for adaptive evolution. Genetic drift Genetic drift is the change in the relative frequency in which a gene variant (allele) occurs in a population due to random sampling. That is, the alleles in the offspring in the population are a random sample of those in the parents. And chance has a role in determining whether a given individual survives and reproduces. A population's allele frequency is the fraction or percentage of its gene copies compared to the total number of gene alleles that share a particular form. Genetic drift is an evolutionary process which leads to changes in allele frequencies over time. It may cause gene variants to disappear completely, and thereby reduce genetic variability. In contrast to natural selection, which makes gene variants more common or less common depending on their reproductive success, the changes due to genetic drift are not driven by environmental or adaptive pressures, and may be beneficial, neutral, or detrimental to reproductive success. The effect of genetic drift is larger in small populations, and smaller in large populations. Vigorous debates wage among scientists over the relative importance of genetic drift compared with natural selection. Ronald Fisher held the view that genetic drift plays at the most a minor role in evolution, and this remained the dominant view for several decades. In 1968 Motoo Kimura rekindled the debate with his neutral theory of molecular evolution which claims that most of the changes in the genetic material are caused by genetic drift. The predictions of neutral theory, based on genetic drift, do not fit recent data on whole genomes well: these data suggest that the frequencies of neutral alleles change primarily due to selection at linked sites, rather than due to genetic drift by means of sampling error. Gene flow Gene flow is the exchange of genes between populations, which are usually of the same species. Examples of gene flow within a species include the migration and then breeding of organisms, or the exchange of pollen. Gene transfer between species includes the formation of hybrid organisms and horizontal gene transfer. Migration into or out of a population can change allele frequencies, as well as introducing genetic variation into a population. Immigration may add new genetic material to the established gene pool of a population. Conversely, emigration may remove genetic material. As barriers to reproduction between two diverging populations are required for the populations to become new species, gene flow may slow this process by spreading genetic differences between the populations. Gene flow is hindered by mountain ranges, oceans and deserts or even man-made structures such as the Great Wall of China, which has hindered the flow of plant genes. Depending on how far two species have diverged since their most recent common ancestor, it may still be possible for them to produce offspring, as with horses and donkeys mating to produce mules. Such hybrids are generally infertile, due to the two different sets of chromosomes being unable to pair up during meiosis. In this case, closely related species may regularly interbreed, but hybrids will be selected against and the species will remain distinct. However, viable hybrids are occasionally formed and these new species can either have properties intermediate between their parent species, or possess a totally new phenotype. The importance of hybridization in developing new species of animals is unclear, although cases have been seen in many types of animals, with the gray tree frog being a particularly well-studied example. Hybridization is, however, an important means of speciation in plants, since polyploidy (having more than two copies of each chromosome) is tolerated in plants more readily than in animals. Polyploidy is important in hybrids as it allows reproduction, with the two different sets of chromosomes each being able to pair with an identical partner during meiosis. Polyploid hybrids also have more genetic diversity, which allows them to avoid inbreeding depression in small populations. Horizontal gene transfer is the transfer of genetic material from one organism to another organism that is not its offspring; this is most common among bacteria. In medicine, this contributes to the spread of antibiotic resistance, as when one bacteria acquires resistance genes it can rapidly transfer them to other species. Horizontal transfer of genes from bacteria to eukaryotes such as the yeast Saccharomyces cerevisiae and the adzuki bean beetle Callosobruchus chinensis may also have occurred. An example of larger-scale transfers are the eukaryotic bdelloid rotifers, which appear to have received a range of genes from bacteria, fungi, and plants. Viruses can also carry DNA between organisms, allowing transfer of genes even across biological domains. Large-scale gene transfer has also occurred between the ancestors of eukaryotic cells and prokaryotes, during the acquisition of chloroplasts and mitochondria. Gene flow is the transfer of alleles from one population to another. Migration into or out of a population may be responsible for a marked change in allele frequencies. Immigration may also result in the addition of new genetic variants to the established gene pool of a particular species or population. There are a number of factors that affect the rate of gene flow between different populations. One of the most significant factors is mobility, as greater mobility of an individual tends to give it greater migratory potential. Animals tend to be more mobile than plants, although pollen and seeds may be carried great distances by animals or wind. Maintained gene flow between two populations can also lead to a combination of the two gene pools, reducing the genetic variation between the two groups. It is for this reason that gene flow strongly acts against speciation, by recombining the gene pools of the groups, and thus, repairing the developing differences in genetic variation that would have led to full speciation and creation of daughter species. For example, if a species of grass grows on both sides of a highway, pollen is likely to be transported from one side to the other and vice versa. If this pollen is able to fertilise the plant where it ends up and produce viable offspring, then the alleles in the pollen have effectively been able to move from the population on one side of the highway to the other. Origin and extended use of the term Origin The term microevolution was first used by botanist Robert Greenleaf Leavitt in the journal Botanical Gazette in 1909, addressing what he called the "mystery" of how formlessness gives rise to form. ..The production of form from formlessness in the egg-derived individual, the multiplication of parts and the orderly creation of diversity among them, in an actual evolution, of which anyone may ascertain the facts, but of which no one has dissipated the mystery in any significant measure. This microevolution forms an integral part of the grand evolution problem and lies at the base of it, so that we shall have to understand the minor process before we can thoroughly comprehend the more general one... However, Leavitt was using the term to describe what we would now call developmental biology; it was not until Russian Entomologist Yuri Filipchenko used the terms "macroevolution" and "microevolution" in 1927 in his German language work, Variabilität und Variation, that it attained its modern usage. The term was later brought into the English-speaking world by Filipchenko's student Theodosius Dobzhansky in his book Genetics and the Origin of Species (1937). Use in creationism In young Earth creationism and baraminology a central tenet is that evolution can explain diversity in a limited number of created kinds which can interbreed (which they call "microevolution") while the formation of new "kinds" (which they call "macroevolution") is impossible. This acceptance of "microevolution" only within a "kind" is also typical of old Earth creationism. Scientific organizations such as the American Association for the Advancement of Science describe microevolution as small scale change within species, and macroevolution as the formation of new species, but otherwise not being different from microevolution. In macroevolution, an accumulation of microevolutionary changes leads to speciation. The main difference between the two processes is that one occurs within a few generations, whilst the other takes place over thousands of years (i.e. a quantitative difference). Essentially they describe the same process; although evolution beyond the species level results in beginning and ending generations which could not interbreed, the intermediate generations could. Opponents to creationism argue that changes in the number of chromosomes can be accounted for by intermediate stages in which a single chromosome divides in generational stages, or multiple chromosomes fuse, and cite the chromosome difference between humans and the other great apes as an example. Creationists insist that since the actual divergence between the other great apes and humans was not observed, the evidence is circumstantial. Describing the fundamental similarity between macro and microevolution in his authoritative textbook "Evolutionary Biology," biologist Douglas Futuyma writes, Contrary to the claims of some antievolution proponents, evolution of life forms beyond the species level (i.e. speciation) has indeed been observed and documented by scientists on numerous occasions. In creation science, creationists accepted speciation as occurring within a "created kind" or "baramin", but objected to what they called "third level-macroevolution" of a new genus or higher rank in taxonomy. There is ambiguity in the ideas as to where to draw a line on "species", "created kinds", and what events and lineages fall within the rubric of microevolution or macroevolution. See also Punctuated equilibrium - due to gene flow, major evolutionary changes may be rare References External links Microevolution (UC Berkeley) Microevolution vs Macroevolution Evolutionary biology concepts Population genetics

19545

https://en.wikipedia.org/wiki/MySQL

MySQL

MySQL () is an open-source relational database management system (RDBMS). Its name is a combination of "My", the name of co-founder Michael Widenius's daughter, and "SQL", the abbreviation for Structured Query Language. A relational database organizes data into one or more data tables in which data types may be related to each other; these relations help structure the data. SQL is a language programmers use to create, modify and extract data from the relational database, as well as control user access to the database. In addition to relational databases and SQL, an RDBMS like MySQL works with an operating system to implement a relational database in a computer's storage system, manages users, allows for network access and facilitates testing database integrity and creation of backups. MySQL is free and open-source software under the terms of the GNU General Public License, and is also available under a variety of proprietary licenses. MySQL was owned and sponsored by the Swedish company MySQL AB, which was bought by Sun Microsystems (now Oracle Corporation). In 2010, when Oracle acquired Sun, Widenius forked the open-source MySQL project to create MariaDB. MySQL has stand-alone clients that allow users to interact directly with a MySQL database using SQL, but more often, MySQL is used with other programs to implement applications that need relational database capability. MySQL is a component of the LAMP web application software stack (and others), which is an acronym for Linux, Apache, MySQL, Perl/PHP/Python. MySQL is used by many database-driven web applications, including Drupal, Joomla, phpBB, and WordPress. MySQL is also used by many popular websites, including Facebook, Flickr, MediaWiki, Twitter, and YouTube. Overview MySQL is written in C and C++. Its SQL parser is written in yacc, but it uses a home-brewed lexical analyzer. MySQL works on many system platforms, including AIX, BSDi, FreeBSD, HP-UX, ArcaOS, eComStation, IBM i, IRIX, Linux, macOS, Microsoft Windows, NetBSD, Novell NetWare, OpenBSD, OpenSolaris, OS/2 Warp, QNX, Oracle Solaris, Symbian, SunOS, SCO OpenServer, SCO UnixWare, Sanos and Tru64. A port of MySQL to OpenVMS also exists. The MySQL server software itself and the client libraries use dual-licensing distribution. They are offered under GPL version 2, or a proprietary license. Support can be obtained from the official manual. Free support additionally is available in different IRC channels and forums. Oracle offers paid support via its MySQL Enterprise products. They differ in the scope of services and in price. Additionally, a number of third party organisations exist to provide support and services. MySQL has received positive reviews, and reviewers noticed it "performs extremely well in the average case" and that the "developer interfaces are there, and the documentation (not to mention feedback in the real world via Web sites and the like) is very, very good". It has also been tested to be a "fast, stable and true multi-user, multi-threaded SQL database server". History MySQL was created by a Swedish company, MySQL AB, founded by Swedes David Axmark, Allan Larsson and Finland Swede Michael "Monty" Widenius. Original development of MySQL by Widenius and Axmark began in 1994. The first version of MySQL appeared on 23 May 1995. It was initially created for personal usage from mSQL based on the low-level language ISAM, which the creators considered too slow and inflexible. They created a new SQL interface, while keeping the same API as mSQL. By keeping the API consistent with the mSQL system, many developers were able to use MySQL instead of the (proprietarily licensed) mSQL antecedent. Milestones Additional milestones in MySQL development included: First internal release on 23 May 1995 Version 3.19: End of 1996, from www.tcx.se Version 3.20: January 1997 Windows version was released on 8 January 1998 for Windows 95 and NT Version 3.21: production release 1998, from www.mysql.com Version 3.22: alpha, beta from 1998 Version 3.23: beta from June 2000, production release 22 January 2001 Version 4.0: beta from August 2002, production release March 2003 (unions). Version 4.1: beta from June 2004, production release October 2004 (R-trees and B-trees, subqueries, prepared statements). Version 5.0: beta from March 2005, production release October 2005 (cursors, stored procedures, triggers, views, XA transactions). The developer of the Federated Storage Engine states that "The Federated Storage Engine is a proof-of-concept storage engine", but the main distributions of MySQL version 5.0 included it and turned it on by default. Documentation of some of the short-comings appears in "MySQL Federated Tables: The Missing Manual". Sun Microsystems acquired MySQL AB in 2008. Version 5.1: production release 27 November 2008 (event scheduler, partitioning, plugin API, row-based replication, server log tables) Version 5.1 contained 20 known crashing and wrong result bugs in addition to the 35 present in version 5.0 (almost all fixed as of release 5.1.51). MySQL 5.1 and 6.0-alpha showed poor performance when used for data warehousing partly due to its inability to utilize multiple CPU cores for processing a single query. Oracle acquired Sun Microsystems on 27 January 2010. The day Oracle announced the purchase of Sun, Michael "Monty" Widenius forked MySQL, launching MariaDB, and took a swath of MySQL developers with him. MySQL Server 5.5 was generally available (). Enhancements and features include: The default storage engine is InnoDB, which supports transactions and referential integrity constraints. Improved InnoDB I/O subsystem Improved SMP support Semisynchronous replication. SIGNAL and RESIGNAL statement in compliance with the SQL standard. Support for supplementary Unicode character sets utf16, utf32, and utf8mb4. New options for user-defined partitioning. MySQL Server 6.0.11-alpha was announced on 22 May 2009 as the last release of the 6.0 line. Future MySQL Server development uses a New Release Model. Features developed for 6.0 are being incorporated into future releases. The general availability of MySQL 5.6 was announced in February 2013. New features included performance improvements to the query optimizer, higher transactional throughput in InnoDB, new NoSQL-style memcached APIs, improvements to partitioning for querying and managing very large tables, column type that correctly stores milliseconds, improvements to replication, and better performance monitoring by expanding the data available through the . The InnoDB storage engine also included support for full-text search and improved group commit performance. The general availability of MySQL 5.7 was announced in October 2015. As of MySQL 5.7.8, August 2015, MySQL supports a native JSON data type defined by RFC 7159. MySQL Server 8.0 was announced in April 2018, including NoSQL Document Store, atomic and crash safe DDL sentences and JSON Extended syntax, new functions, such as JSON table functions, improved sorting, and partial updates. Previous MySQL Server 8.0.0-dmr (Milestone Release) was announced 12 September 2016. MySQL was declared DBMS of the year 2019 from the DB-Engines ranking Release history Work on version 6 stopped after the Sun Microsystems acquisition. The MySQL Cluster product uses version 7. The decision was made to jump to version 8 as the next major version number. Legal disputes and acquisitions On 15 June 2001, NuSphere sued MySQL AB, TcX DataKonsult AB and its original authors Michael ("Monty") Widenius and David Axmark in U.S District Court in Boston for "breach of contract, tortious interference with third party contracts and relationships and unfair competition". In 2002, MySQL AB sued Progress NuSphere for copyright and trademark infringement in United States district court. NuSphere had allegedly violated MySQL AB's copyright by linking MySQL's GPL'ed code with NuSphere Gemini table without being in compliance with the license. After a preliminary hearing before Judge Patti Saris on 27 February 2002, the parties entered settlement talks and eventually settled. After the hearing, FSF commented that "Judge Saris made clear that she sees the GNU GPL to be an enforceable and binding license." In October 2005, Oracle Corporation acquired Innobase OY, the Finnish company that developed the third-party InnoDB storage engine that allows MySQL to provide such functionality as transactions and foreign keys. After the acquisition, an Oracle press release mentioned that the contracts that make the company's software available to MySQL AB would be due for renewal (and presumably renegotiation) some time in 2006. During the MySQL Users Conference in April 2006, MySQL AB issued a press release that confirmed that MySQL AB and Innobase OY agreed to a "multi-year" extension of their licensing agreement. In February 2006, Oracle Corporation acquired Sleepycat Software, makers of the Berkeley DB, a database engine providing the basis for another MySQL storage engine. This had little effect, as Berkeley DB was not widely used, and was dropped (due to lack of use) in MySQL 5.1.12, a pre-GA release of MySQL 5.1 released in October 2006. In January 2008, Sun Microsystems bought MySQL AB for $1 billion. In April 2009, Oracle Corporation entered into an agreement to purchase Sun Microsystems, then owners of MySQL copyright and trademark. Sun's board of directors unanimously approved the deal. It was also approved by Sun's shareholders, and by the U.S. government on 20 August 2009. On 14 December 2009, Oracle pledged to continue to enhance MySQL as it had done for the previous four years. A movement against Oracle's acquisition of MySQL AB, to "Save MySQL" from Oracle was started by one of the MySQL AB founders, Monty Widenius. The petition of 50,000+ developers and users called upon the European Commission to block approval of the acquisition. At the same time, some Free Software opinion leaders (including Pamela Jones of Groklaw, Jan Wildeboer and Carlo Piana, who also acted as co-counsel in the merger regulation procedure) advocated for the unconditional approval of the merger. As part of the negotiations with the European Commission, Oracle committed that MySQL server will continue until at least 2015 to use the dual-licensing strategy long used by MySQL AB, with proprietary and GPL versions available. The antitrust of the EU had been "pressuring it to divest MySQL as a condition for approval of the merger". But, as revealed by WikiLeaks, the US Department of Justice, at the request of Oracle, pressured the EU to approve the merger unconditionally. The European Commission eventually unconditionally approved Oracle's acquisition of MySQL AB on 21 January 2010. In January 2010, before Oracle's acquisition of MySQL AB, Monty Widenius started a GPL-only fork, MariaDB. MariaDB is based on the same code base as MySQL server 5.5 and aims to maintain compatibility with Oracle-provided versions. Features MySQL is offered under two different editions: the open source MySQL Community Server and the proprietary Enterprise Server. MySQL Enterprise Server is differentiated by a series of proprietary extensions which install as server plugins, but otherwise shares the version numbering system and is built from the same code base. Major features as available in MySQL 5.6: A broad subset of ANSI SQL 99, as well as extensions Cross-platform support Stored procedures, using a procedural language that closely adheres to SQL/PSM Triggers Cursors Updatable views Online Data Definition Language (DDL) when using the InnoDB Storage Engine. Information schema Performance Schema that collects and aggregates statistics about server execution and query performance for monitoring purposes. A set of SQL Mode options to control runtime behavior, including a strict mode to better adhere to SQL standards. X/Open XA distributed transaction processing (DTP) support; two phase commit as part of this, using the default InnoDB storage engine Transactions with savepoints when using the default InnoDB Storage Engine. The NDB Cluster Storage Engine also supports transactions. ACID compliance when using InnoDB and NDB Cluster Storage Engines SSL support Query caching Sub-SELECTs (i.e. nested SELECTs) Built-in replication support Asynchronous replication: master-slave from one master to many slaves or many masters to one slave Semi synchronous replication: Master to slave replication where the master waits on replication Synchronous replication: Multi-master replication is provided in MySQL Cluster. Virtual Synchronous: Self managed groups of MySQL servers with multi master support can be done using: Galera Cluster or the built in Group Replication plugin Full-text indexing and searching Embedded database library Unicode support Partitioned tables with pruning of partitions in optimizer Shared-nothing clustering through MySQL Cluster Multiple storage engines, allowing one to choose the one that is most effective for each table in the application. Native storage engines InnoDB, MyISAM, Merge, Memory (heap), Federated, Archive, CSV, Blackhole, NDB Cluster. Commit grouping, gathering multiple transactions from multiple connections together to increase the number of commits per second. The developers release minor updates of the MySQL Server approximately every two months. The sources can be obtained from MySQL's website or from MySQL's GitHub repository, both under the GPL license. Limitations When using some storage engines other than the default of InnoDB, MySQL does not comply with the full SQL standard for some of the implemented functionality, including foreign key references. Check constraints are parsed but ignored by all storage engines before MySQL version 8.0.15. Up until MySQL 5.7, triggers are limited to one per action / timing, meaning that at most one trigger can be defined to be executed after an operation, and one before on the same table. No triggers can be defined on views. MySQL database's inbuilt functions like will return after 03:14:07 UTC on 19 January 2038. Recently, there had been an attempt to solve the problem which had been assigned to the internal queue. Deployment MySQL can be built and installed manually from source code, but it is more commonly installed from a binary package unless special customizations are required. On most Linux distributions, the package management system can download and install MySQL with minimal effort, though further configuration is often required to adjust security and optimization settings. Though MySQL began as a low-end alternative to more powerful proprietary databases, it has gradually evolved to support higher-scale needs as well. It is still most commonly used in small to medium scale single-server deployments, either as a component in a LAMP-based web application or as a standalone database server. Much of MySQL's appeal originates in its relative simplicity and ease of use, which is enabled by an ecosystem of open source tools such as phpMyAdmin. In the medium range, MySQL can be scaled by deploying it on more powerful hardware, such as a multi-processor server with gigabytes of memory. There are, however, limits to how far performance can scale on a single server ('scaling up'), so on larger scales, multi-server MySQL ('scaling out') deployments are required to provide improved performance and reliability. A typical high-end configuration can include a powerful master database which handles data write operations and is replicated to multiple slaves that handle all read operations. The master server continually pushes binlog events to connected slaves so in the event of failure a slave can be promoted to become the new master, minimizing downtime. Further improvements in performance can be achieved by caching the results from database queries in memory using memcached, or breaking down a database into smaller chunks called shards which can be spread across a number of distributed server clusters. High availability software Oracle MySQL offers a high availability solution with a mix of tools including the MySQL router and the MySQL shell. They are based on Group Replication, open source tools. MariaDB offers a similar offer in terms of products. Cloud deployment MySQL can also be run on cloud computing platforms such as Microsoft Azure, Amazon EC2, Oracle Cloud Infrastructure. Some common deployment models for MySQL on the cloud are: Virtual machine image In this implementation, cloud users can upload a machine image of their own with MySQL installed, or use a ready-made machine image with an optimized installation of MySQL on it, such as the one provided by Amazon EC2. MySQL as a service Some cloud platforms offer MySQL "as a service". In this configuration, application owners do not have to install and maintain the MySQL database on their own. Instead, the database service provider takes responsibility for installing and maintaining the database, and application owners pay according to their usage. Notable cloud-based MySQL services are the Amazon Relational Database Service; Oracle MySQL Cloud Service, Azure Database for MySQL, Rackspace; HP Converged Cloud; Heroku and Jelastic. In this model the database service provider takes responsibility for maintaining the host and database. User interfaces Graphical user interfaces A graphical user interface (GUI) is a type of interface that allows users to interact with electronic devices or programs through graphical icons and visual indicators such as secondary notation, as opposed to text-based interfaces, typed command labels or text navigation. Third-party proprietary and free graphical administration applications (or "front ends") are available that integrate with MySQL and enable users to work with database structure and data visually. MySQL Workbench MySQL Workbench is the integrated environment for MySQL. It was developed by MySQL AB, and enables users to graphically administer MySQL databases and visually design database structures. MySQL Workbench is available in three editions, the regular free and open source Community Edition which may be downloaded from the MySQL website, and the proprietary Standard Edition which extends and improves the feature set of the Community Edition, and the MySQL Cluster CGE. Other GUI tools Adminer Database Workbench DBeaver DBEdit HeidiSQL LibreOffice Base Navicat OpenOffice.org Base phpMyAdmin SQLBuddy SQLyog Toad for MySQL Webmin Command-line interfaces A command-line interface is a means of interacting with a computer program where the user issues commands to the program by typing in successive lines of text (command lines). MySQL ships with many command line tools, from which the main interface is the client. MySQL Utilities is a set of utilities designed to perform common maintenance and administrative tasks. Originally included as part of the MySQL Workbench, the utilities are a stand-alone download available from Oracle. Percona Toolkit is a cross-platform toolkit for MySQL, developed in Perl. Percona Toolkit can be used to prove replication is working correctly, fix corrupted data, automate repetitive tasks, and speed up servers. Percona Toolkit is included with several Linux distributions such as CentOS and Debian, and packages are available for Fedora and Ubuntu as well. Percona Toolkit was originally developed as Maatkit, but as of late 2011, Maatkit is no longer developed. MySQL shell is a tool for interactive use and administration of the MySQL database. It supports JavaScript, Python or SQL modes and it can be used for administration and access purposes. Application programming interfaces Many programming languages with language-specific APIs include libraries for accessing MySQL databases. These include MySQL Connector/Net for .NET/CLI Languages, and the JDBC driver for Java. In addition, an ODBC interface called MySQL Connector/ODBC allows additional programming languages that support the ODBC interface to communicate with a MySQL database, such as ASP or ColdFusion. The HTSQL URL-based query method also ships with a MySQL adapter, allowing direct interaction between a MySQL database and any web client via structured URLs. Other drivers exists for languages like Python or Node.js. Project forks A variety of MySQL forks exist, including the following. Current MariaDB MariaDB is a community-developed fork of the MySQL relational database management system intended to remain free under the GNU GPL. The fork has been led by the original developers of MySQL, who forked it due to concerns over its acquisition by Oracle. Percona Server for MySQL Percona Server for MySQL, forked by Percona, aims to retain close compatibility to the official MySQL releases. Also included in Percona Server for MySQL is XtraDB, Percona's fork of the InnoDB Storage Engine. Abandoned Drizzle Drizzle was a free software/open source relational database management system (DBMS) that was forked from the now-defunct 6.0 development branch of the MySQL DBMS. Like MySQL, Drizzle had a client/server architecture and uses SQL as its primary command language. Drizzle was distributed under version 2 and 3 of the GNU General Public License (GPL) with portions, including the protocol drivers and replication messaging under the BSD license. WebScaleSQL WebScaleSQL was a software branch of MySQL 5.6, and was announced on 27 March 2014 by Facebook, Google, LinkedIn and Twitter as a joint effort to provide a centralized development structure for extending MySQL with new features specific to its large-scale deployments, such as building large replicated databases running on server farms. Thus, WebScaleSQL opened a path toward deduplicating the efforts each company had been putting into maintaining its own branch of MySQL, and toward bringing together more developers. By combining the efforts of these companies and incorporating various changes and new features into MySQL, WebScaleSQL aimed at supporting the deployment of MySQL in large-scale environments. The project's source code is licensed under version 2 of the GNU General Public License, and is hosted on GitHub. OurDelta The OurDelta distribution, created by the Australian company Open Query (later acquired by Catalyst IT Australia), had two versions: 5.0, which was based on MySQL, and 5.1, which was based on MariaDB. It included patches developed by Open Query and by other notable members of the MySQL community including Jeremy Cole and Google. Once the patches were incorporated into the MariaDB mainline, OurDelta's objectives were achieved and OurDelta passed on its build and packaging toolchain to Monty Program (now MariaDB Corp). See also Comparison of database tools Comparison of MySQL database engines Comparison of relational database management systems SQL compliance Notes References External links MySQL at Oracle 1995 software Client-server database management systems Cross-platform software Free database management systems Oracle software RDBMS software for Linux Relational database management systems Sun Microsystems software Software using the GPL license Drupal WordPress

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https://en.wikipedia.org/wiki/Modernism

Modernism

Modernism is both a philosophical movement and an art movement that arose from broad transformations in Western society during the late 19th and early 20th centuries. The movement reflected a desire for the creation of new forms of art, philosophy, and social organization which reflected the newly emerging industrial world, including features such as urbanization, new technologies, and war. Artists attempted to depart from traditional forms of art, which they considered outdated or obsolete. The poet Ezra Pound's 1934 injunction to "Make it New" was the touchstone of the movement's approach. Modernist innovations included abstract art, the stream-of-consciousness novel, montage cinema, atonal and twelve-tone music, and divisionist painting. Modernism explicitly rejected the ideology of realism and made use of the works of the past by the employment of reprise, incorporation, rewriting, recapitulation, revision and parody. Modernism also rejected the certainty of Enlightenment thinking, and many modernists also rejected religious belief. A notable characteristic of modernism is self-consciousness concerning artistic and social traditions, which often led to experimentation with form, along with the use of techniques that drew attention to the processes and materials used in creating works of art. While some scholars see modernism continuing into the 21st century, others see it evolving into late modernism or high modernism. Postmodernism is a departure from modernism and rejects its basic assumptions. Definition Some commentators define modernism as a mode of thinking—one or more philosophically defined characteristics, like self-consciousness or self-reference, that run across all the novelties in the arts and the disciplines. More common, especially in the West, are those who see it as a socially progressive trend of thought that affirms the power of human beings to create, improve, and reshape their environment with the aid of practical experimentation, scientific knowledge, or technology. From this perspective, modernism encouraged the re-examination of every aspect of existence, from commerce to philosophy, with the goal of finding that which was 'holding back' progress, and replacing it with new ways of reaching the same end. According to Roger Griffin, modernism can be defined as a broad cultural, social, or political initiative, sustained by the ethos of "the temporality of the new". Modernism sought to restore, Griffin writes, a "sense of sublime order and purpose to the contemporary world, thereby counteracting the (perceived) erosion of an overarching ‘nomos’, or ‘sacred canopy’, under the fragmenting and secularizing impact of modernity." Therefore, phenomena apparently unrelated to each other such as "Expressionism, Futurism, vitalism, Theosophy, psychoanalysis, nudism, eugenics, utopian town planning and architecture, modern dance, Bolshevism, organic nationalism – and even the cult of self-sacrifice that sustained the hecatomb of the First World War – disclose a common cause and psychological matrix in the fight against (perceived) decadence." All of them embody bids to access a "supra-personal experience of reality", in which individuals believed they could transcend their own mortality, and eventually that they had ceased to be victims of history to become instead its creators. Early history Origins According to one critic, modernism developed out of Romanticism's revolt against the effects of the Industrial Revolution and bourgeois values: "The ground motive of modernism, Graff asserts, was criticism of the nineteenth-century bourgeois social order and its world view [...] the modernists, carrying the torch of romanticism." While J. M. W. Turner (1775–1851), one of the greatest landscape painters of the 19th century, was a member of the Romantic movement, as "a pioneer in the study of light, colour, and atmosphere", he "anticipated the French Impressionists" and therefore modernism "in breaking down conventional formulas of representation; [though] unlike them, he believed that his works should always express significant historical, mythological, literary, or other narrative themes." The dominant trends of industrial Victorian England were opposed, from about 1850, by the English poets and painters that constituted the Pre-Raphaelite Brotherhood, because of their "opposition to technical skill without inspiration." They were influenced by the writings of the art critic John Ruskin (1819–1900), who had strong feelings about the role of art in helping to improve the lives of the urban working classes, in the rapidly expanding industrial cities of Britain. Art critic Clement Greenberg describes the Pre-Raphaelite Brotherhood as proto-Modernists: "There the proto-Modernists were, of all people, the pre-Raphaelites (and even before them, as proto-proto-Modernists, the German Nazarenes). The Pre-Raphaelites actually foreshadowed Manet (1832–1883), with whom Modernist painting most definitely begins. They acted on a dissatisfaction with painting as practiced in their time, holding that its realism wasn't truthful enough." Rationalism has also had opponents in the philosophers Søren Kierkegaard (1813–55) and later Friedrich Nietzsche (1844–1900), both of whom had significant influence on existentialism and nihilism. However, the Industrial Revolution continued. Influential innovations included steam-powered industrialization, and especially the development of railways, starting in Britain in the 1830s, and the subsequent advancements in physics, engineering, and architecture associated with this. A major 19th-century engineering achievement was The Crystal Palace, the huge cast-iron and plate glass exhibition hall built for the Great Exhibition of 1851 in London. Glass and iron were used in a similar monumental style in the construction of major railway terminals in London, such as Paddington Station (1854) and King's Cross station (1852). These technological advances led to the building of later structures like the Brooklyn Bridge (1883) and the Eiffel Tower (1889). The latter broke all previous limitations on how tall man-made objects could be. These engineering marvels radically altered the 19th-century urban environment and the daily lives of people. The human experience of time itself was altered, with the development of the electric telegraph from 1837, and the adoption of standard time by British railway companies from 1845, and in the rest of the world over the next fifty years. Despite continuing technological advances, the idea that history and civilization were inherently progressive, and that progress was always good, came under increasing attack in the nineteenth century. Arguments arose that the values of the artist and those of society were not merely different, but that Society was antithetical to Progress, and could not move forward in its present form. Early in the century, the philosopher Schopenhauer (1788–1860) (The World as Will and Representation, 1819) had called into question the previous optimism, and his ideas had an important influence on later thinkers, including Nietzsche. Two of the most significant thinkers of the mid nineteenth century were biologist Charles Darwin (1809–1882), author of On the Origin of Species by Means of Natural Selection (1859), and political scientist Karl Marx (1818–1883), author of Das Kapital (1867). Darwin's theory of evolution by natural selection undermined religious certainty and the idea of human uniqueness. In particular, the notion that human beings were driven by the same impulses as "lower animals" proved to be difficult to reconcile with the idea of an ennobling spirituality. Karl Marx argued that there were fundamental contradictions within the capitalist system, and that the workers were anything but free. The beginnings in the late nineteenth century Historians, and writers in different disciplines, have suggested various dates as starting points for modernism. Historian William Everdell, for example, has argued that modernism began in the 1870s, when metaphorical (or ontological) continuity began to yield to the discrete with mathematician Richard Dedekind's (1831–1916) Dedekind cut, and Ludwig Boltzmann's (1844–1906) statistical thermodynamics. Everdell also thinks modernism in painting began in 1885–1886 with Seurat's Divisionism, the "dots" used to paint A Sunday Afternoon on the Island of La Grande Jatte. On the other hand, visual art critic Clement Greenberg called Immanuel Kant (1724–1804) "the first real Modernist", though he also wrote, "What can be safely called Modernism emerged in the middle of the last century—and rather locally, in France, with Baudelaire in literature and Manet in painting, and perhaps with Flaubert, too, in prose fiction. (It was a while later, and not so locally, that Modernism appeared in music and architecture)." The poet Baudelaire's Les Fleurs du mal (The Flowers of Evil), and Flaubert's novel Madame Bovary were both published in 1857. In the arts and letters, two important approaches developed separately in France, beginning in the 1860s. The first was Impressionism, a school of painting that initially focused on work done, not in studios, but outdoors (en plein air). Impressionist paintings demonstrated that human beings do not see objects, but instead see light itself. The school gathered adherents despite internal divisions among its leading practitioners, and became increasingly influential. Initially rejected from the most important commercial show of the time, the government-sponsored Paris Salon, the Impressionists organized yearly group exhibitions in commercial venues during the 1870s and 1880s, timing them to coincide with the official Salon. A significant event of 1863 was the Salon des Refusés, created by Emperor Napoleon III to display all of the paintings rejected by the Paris Salon. While most were in standard styles, but by inferior artists, the work of Manet attracted tremendous attention, and opened commercial doors to the movement. The second French school was Symbolism, which literary historians see beginning with Charles Baudelaire (1821–1867), and including the later poets, Arthur Rimbaud (1854–1891) Une Saison en Enfer (A Season in Hell, 1873), Paul Verlaine (1844–1896), Stéphane Mallarmé (1842–1898), and Paul Valéry (1871–1945). The symbolists "stressed the priority of suggestion and evocation over direct description and explicit analogy," and were especially interested in "the musical properties of language." Cabaret, which gave birth to so many of the arts of modernism, including the immediate precursors of film, may be said to have begun in France in 1881 with the opening of the Black Cat in Montmartre, the beginning of the ironic monologue, and the founding of the Society of Incoherent Arts. Influential in the early days of modernism were the theories of Sigmund Freud (1856–1939). Freud's first major work was Studies on Hysteria (with Josef Breuer, 1895). Central to Freud's thinking is the idea "of the primacy of the unconscious mind in mental life," so that all subjective reality was based on the play of basic drives and instincts, through which the outside world was perceived. Freud's description of subjective states involved an unconscious mind full of primal impulses, and counterbalancing self-imposed restrictions derived from social values. Friedrich Nietzsche (1844–1900) was another major precursor of modernism, with a philosophy in which psychological drives, specifically the "will to power" (Wille zur Macht), was of central importance: "Nietzsche often identified life itself with 'will to power', that is, with an instinct for growth and durability." Henri Bergson (1859–1941), on the other hand, emphasized the difference between scientific, clock time and the direct, subjective, human experience of time. His work on time and consciousness "had a great influence on twentieth-century novelists," especially those modernists who used the stream of consciousness technique, such as Dorothy Richardson, James Joyce, and Virginia Woolf (1882–1941). Also important in Bergson's philosophy was the idea of élan vital, the life force, which "brings about the creative evolution of everything." His philosophy also placed a high value on intuition, though without rejecting the importance of the intellect. Important literary precursors of modernism were Fyodor Dostoevsky (1821–1881), who wrote the novels Crime and Punishment (1866) and The Brothers Karamazov (1880); Walt Whitman (1819–1892), who published the poetry collection Leaves of Grass (1855–1891); and August Strindberg (1849–1912), especially his later plays, including the trilogy To Damascus 1898–1901, A Dream Play (1902) and The Ghost Sonata (1907). Henry James has also been suggested as a significant precursor, in a work as early as The Portrait of a Lady (1881). Out of the collision of ideals derived from Romanticism, and an attempt to find a way for knowledge to explain that which was as yet unknown, came the first wave of works in the first decade of the 20th century, which, while their authors considered them extensions of existing trends in art, broke the implicit contract with the general public that artists were the interpreters and representatives of bourgeois culture and ideas. These "Modernist" landmarks include the atonal ending of Arnold Schoenberg's Second String Quartet in 1908, the expressionist paintings of Wassily Kandinsky starting in 1903, and culminating with his first abstract painting and the founding of the Blue Rider group in Munich in 1911, and the rise of fauvism and the inventions of cubism from the studios of Henri Matisse, Pablo Picasso, Georges Braque, and others, in the years between 1900 and 1910. Main period Early 20th century to 1930 An important aspect of modernism is how it relates to tradition through its adoption of techniques like reprise, incorporation, rewriting, recapitulation, revision and parody in new forms. T. S. Eliot made significant comments on the relation of the artist to tradition, including: "[W]e shall often find that not only the best, but the most individual parts of [a poet's] work, may be those in which the dead poets, his ancestors, assert their immortality most vigorously." However, the relationship of Modernism with tradition was complex, as literary scholar Peter Childs indicates: "There were paradoxical if not opposed trends towards revolutionary and reactionary positions, fear of the new and delight at the disappearance of the old, nihilism and fanatical enthusiasm, creativity and despair." An example of how Modernist art can be both revolutionary and yet be related to past tradition, is the music of the composer Arnold Schoenberg. On the one hand Schoenberg rejected traditional tonal harmony, the hierarchical system of organizing works of music that had guided music making for at least a century and a half. He believed he had discovered a wholly new way of organizing sound, based in the use of twelve-note rows. Yet while this was indeed wholly new, its origins can be traced back in the work of earlier composers, such as Franz Liszt, Richard Wagner, Gustav Mahler, Richard Strauss and Max Reger. Schoenberg also wrote tonal music throughout his career. In the world of art, in the first decade of the 20th century, young painters such as Pablo Picasso and Henri Matisse were causing a shock with their rejection of traditional perspective as the means of structuring paintings, though the impressionist Monet had already been innovative in his use of perspective. In 1907, as Picasso was painting Les Demoiselles d'Avignon, Oskar Kokoschka was writing Mörder, Hoffnung der Frauen (Murderer, Hope of Women), the first Expressionist play (produced with scandal in 1909), and Arnold Schoenberg was composing his String Quartet No.2 in F sharp minor (1908), his first composition without a tonal centre. A primary influence that led to Cubism was the representation of three-dimensional form in the late works of Paul Cézanne, which were displayed in a retrospective at the 1907 Salon d'Automne. In Cubist artwork, objects are analyzed, broken up and reassembled in an abstracted form; instead of depicting objects from one viewpoint, the artist depicts the subject from a multitude of viewpoints to represent the subject in a greater context. Cubism was brought to the attention of the general public for the first time in 1911 at the Salon des Indépendants in Paris (held 21 April – 13 June). Jean Metzinger, Albert Gleizes, Henri Le Fauconnier, Robert Delaunay, Fernand Léger and Roger de La Fresnaye were shown together in Room 41, provoking a 'scandal' out of which Cubism emerged and spread throughout Paris and beyond. Also in 1911, Kandinsky painted Bild mit Kreis (Picture with a Circle), which he later called the first abstract painting. In 1912, Metzinger and Gleizes wrote the first (and only) major Cubist manifesto, Du "Cubisme", published in time for the Salon de la Section d'Or, the largest Cubist exhibition to date. In 1912 Metzinger painted and exhibited his enchanting La Femme au Cheval (Woman with a Horse) and Danseuse au Café (Dancer in a Café). Albert Gleizes painted and exhibited his Les Baigneuses (The Bathers) and his monumental Le Dépiquage des Moissons (Harvest Threshing). This work, along with La Ville de Paris (City of Paris) by Robert Delaunay, was the largest and most ambitious Cubist painting undertaken during the pre-War Cubist period. In 1905, a group of four German artists, led by Ernst Ludwig Kirchner, formed Die Brücke (the Bridge) in the city of Dresden. This was arguably the founding organization for the German Expressionist movement, though they did not use the word itself. A few years later, in 1911, a like-minded group of young artists formed Der Blaue Reiter (The Blue Rider) in Munich. The name came from Wassily Kandinsky's Der Blaue Reiter painting of 1903. Among their members were Kandinsky, Franz Marc, Paul Klee, and August Macke. However, the term "Expressionism" did not firmly establish itself until 1913. Though initially mainly a German artistic movement, most predominant in painting, poetry and the theatre between 1910 and 1930, most precursors of the movement were not German. Furthermore, there have been expressionist writers of prose fiction, as well as non-German speaking expressionist writers, and, while the movement had declined in Germany with the rise of Adolf Hitler in the 1930s, there were subsequent expressionist works. Expressionism is notoriously difficult to define, in part because it "overlapped with other major 'isms' of the modernist period: with Futurism, Vorticism, Cubism, Surrealism and Dada." Richard Murphy also comments: "the search for an all-inclusive definition is problematic to the extent that the most challenging expressionists" such as the novelist Franz Kafka, poet Gottfried Benn, and novelist Alfred Döblin were simultaneously the most vociferous anti-expressionists. What, however, can be said, is that it was a movement that developed in the early 20th century mainly in Germany in reaction to the dehumanizing effect of industrialization and the growth of cities, and that "one of the central means by which expressionism identifies itself as an avant-garde movement, and by which it marks its distance to traditions and the cultural institution as a whole is through its relationship to realism and the dominant conventions of representation." More explicitly: that the expressionists rejected the ideology of realism. There was a concentrated Expressionist movement in early 20th century German theatre, of which Georg Kaiser and Ernst Toller were the most famous playwrights. Other notable Expressionist dramatists included Reinhard Sorge, Walter Hasenclever, Hans Henny Jahnn, and Arnolt Bronnen. They looked back to Swedish playwright August Strindberg and German actor and dramatist Frank Wedekind as precursors of their dramaturgical experiments. Oskar Kokoschka's Murderer, the Hope of Women was the first fully Expressionist work for the theatre, which opened on 4 July 1909 in Vienna. The extreme simplification of characters to mythic types, choral effects, declamatory dialogue and heightened intensity would become characteristic of later Expressionist plays. The first full-length Expressionist play was The Son by Walter Hasenclever, which was published in 1914 and first performed in 1916. Futurism is yet another modernist movement. In 1909, the Parisian newspaper Le Figaro published F. T. Marinetti's first manifesto. Soon afterwards a group of painters (Giacomo Balla, Umberto Boccioni, Carlo Carrà, Luigi Russolo, and Gino Severini) co-signed the Futurist Manifesto. Modeled on Marx and Engels' famous "Communist Manifesto" (1848), such manifestoes put forward ideas that were meant to provoke and to gather followers. However, arguments in favor of geometric or purely abstract painting were, at this time, largely confined to "little magazines" which had only tiny circulations. Modernist primitivism and pessimism were controversial, and the mainstream in the first decade of the 20th century was still inclined towards a faith in progress and liberal optimism. Abstract artists, taking as their examples the impressionists, as well as Paul Cézanne (1839–1906) and Edvard Munch (1863–1944), began with the assumption that color and shape, not the depiction of the natural world, formed the essential characteristics of art. Western art had been, from the Renaissance up to the middle of the 19th century, underpinned by the logic of perspective and an attempt to reproduce an illusion of visible reality. The arts of cultures other than the European had become accessible and showed alternative ways of describing visual experience to the artist. By the end of the 19th century many artists felt a need to create a new kind of art which would encompass the fundamental changes taking place in technology, science and philosophy. The sources from which individual artists drew their theoretical arguments were diverse, and reflected the social and intellectual preoccupations in all areas of Western culture at that time. Wassily Kandinsky, Piet Mondrian, and Kazimir Malevich all believed in redefining art as the arrangement of pure color. The use of photography, which had rendered much of the representational function of visual art obsolete, strongly affected this aspect of modernism. Modernist architects and designers, such as Frank Lloyd Wright and Le Corbusier, believed that new technology rendered old styles of building obsolete. Le Corbusier thought that buildings should function as "machines for living in", analogous to cars, which he saw as machines for traveling in. Just as cars had replaced the horse, so modernist design should reject the old styles and structures inherited from Ancient Greece or from the Middle Ages. Following this machine aesthetic, modernist designers typically rejected decorative motifs in design, preferring to emphasize the materials used and pure geometrical forms. The skyscraper is the archetypal modernist building, and the Wainwright Building, a 10-story office building built 1890–91, in St. Louis, Missouri, United States, is among the first skyscrapers in the world. Ludwig Mies van der Rohe's Seagram Building in New York (1956–1958) is often regarded as the pinnacle of this modernist high-rise architecture. Many aspects of modernist design still persist within the mainstream of contemporary architecture, though previous dogmatism has given way to a more playful use of decoration, historical quotation, and spatial drama. In 1913—which was the year of philosopher Edmund Husserl's Ideas, physicist Niels Bohr's quantized atom, Ezra Pound's founding of imagism, the Armory Show in New York, and in Saint Petersburg the "first futurist opera", Mikhail Matyushin's Victory over the Sun—another Russian composer, Igor Stravinsky, composed The Rite of Spring, a ballet that depicts human sacrifice, and has a musical score full of dissonance and primitive rhythm. This caused uproar on its first performance in Paris. At this time though modernism was still "progressive", increasingly it saw traditional forms and traditional social arrangements as hindering progress, and was recasting the artist as a revolutionary, engaged in overthrowing rather than enlightening society. Also in 1913 a less violent event occurred in France with the publication of the first volume of Marcel Proust's important novel sequence À la recherche du temps perdu (1913–1927) (In Search of Lost Time). This is often presented as an early example of a writer using the stream-of-consciousness technique, but Robert Humphrey comments that Proust "is concerned only with the reminiscent aspect of consciousness" and that he "was deliberately recapturing the past for the purpose of communicating; hence he did not write a stream-of-consciousness novel." Stream of consciousness was an important modernist literary innovation, and it has been suggested that Arthur Schnitzler (1862–1931) was the first to make full use of it in his short story "Leutnant Gustl" ("None but the Brave") (1900). Dorothy Richardson was the first English writer to use it, in the early volumes of her novel sequence Pilgrimage (1915–1967). The other modernist novelists that are associated with the use of this narrative technique include James Joyce in Ulysses (1922) and Italo Svevo in La coscienza di Zeno (1923). However, with the coming of the Great War of 1914–1918 and the Russian Revolution of 1917, the world was drastically changed and doubt cast on the beliefs and institutions of the past. The failure of the previous status quo seemed self-evident to a generation that had seen millions die fighting over scraps of earth: prior to 1914 it had been argued that no one would fight such a war, since the cost was too high. The birth of a machine age which had made major changes in the conditions of daily life in the 19th century now had radically changed the nature of warfare. The traumatic nature of recent experience altered basic assumptions, and realistic depiction of life in the arts seemed inadequate when faced with the fantastically surreal nature of trench warfare. The view that mankind was making steady moral progress now seemed ridiculous in the face of the senseless slaughter, described in works such as Erich Maria Remarque's novel All Quiet on the Western Front (1929). Therefore, modernism's view of reality, which had been a minority taste before the war, became more generally accepted in the 1920s. In literature and visual art some modernists sought to defy expectations mainly in order to make their art more vivid, or to force the audience to take the trouble to question their own preconceptions. This aspect of modernism has often seemed a reaction to consumer culture, which developed in Europe and North America in the late 19th century. Whereas most manufacturers try to make products that will be marketable by appealing to preferences and prejudices, high modernists rejected such consumerist attitudes in order to undermine conventional thinking. The art critic Clement Greenberg expounded this theory of modernism in his essay Avant-Garde and Kitsch. Greenberg labeled the products of consumer culture "kitsch", because their design aimed simply to have maximum appeal, with any difficult features removed. For Greenberg, modernism thus formed a reaction against the development of such examples of modern consumer culture as commercial popular music, Hollywood, and advertising. Greenberg associated this with the revolutionary rejection of capitalism. Some modernists saw themselves as part of a revolutionary culture that included political revolution. In Russia after the 1917 Revolution there was indeed initially a burgeoning of avant-garde cultural activity, which included Russian Futurism. However others rejected conventional politics as well as artistic conventions, believing that a revolution of political consciousness had greater importance than a change in political structures. But many modernists saw themselves as apolitical. Others, such as T. S. Eliot, rejected mass popular culture from a conservative position. Some even argue that modernism in literature and art functioned to sustain an elite culture which excluded the majority of the population. Surrealism, which originated in the early 1920s, came to be regarded by the public as the most extreme form of modernism, or "the avant-garde of Modernism". The word "surrealist" was coined by Guillaume Apollinaire and first appeared in the preface to his play Les Mamelles de Tirésias, which was written in 1903 and first performed in 1917. Major surrealists include Paul Éluard, Robert Desnos, Max Ernst, Hans Arp, Antonin Artaud, Raymond Queneau, Joan Miró, and Marcel Duchamp. By 1930, Modernism had won a place in the establishment, including the political and artistic establishment, although by this time Modernism itself had changed. Modernism continues: 1930–1945 Modernism continued to evolve during the 1930s. Between 1930 and 1932 composer Arnold Schoenberg worked on Moses und Aron, one of the first operas to make use of the twelve-tone technique, Pablo Picasso painted in 1937 Guernica, his cubist condemnation of fascism, while in 1939 James Joyce pushed the boundaries of the modern novel further with Finnegans Wake. Also by 1930 Modernism began to influence mainstream culture, so that, for example, The New Yorker magazine began publishing work, influenced by Modernism, by young writers and humorists like Dorothy Parker, Robert Benchley, E. B. White, S. J. Perelman, and James Thurber, amongst others. Perelman is highly regarded for his humorous short stories that he published in magazines in the 1930s and 1940s, most often in The New Yorker, which are considered to be the first examples of surrealist humor in America. Modern ideas in art also began to appear more frequently in commercials and logos, an early example of which, from 1916, is the famous London Underground logo designed by Edward Johnston. One of the most visible changes of this period was the adoption of new technologies into daily life of ordinary people in Western Europe and North America. Electricity, the telephone, the radio, the automobile—and the need to work with them, repair them and live with them—created social change. The kind of disruptive moment that only a few knew in the 1880s became a common occurrence. For example, the speed of communication reserved for the stock brokers of 1890 became part of family life, at least in middle class North America. Associated with urbanization and changing social mores also came smaller families and changed relationships between parents and their children. Another strong influence at this time was Marxism. After the generally primitivistic/irrationalist aspect of pre-World War I Modernism (which for many modernists precluded any attachment to merely political solutions) and the neoclassicism of the 1920s (as represented most famously by T. S. Eliot and Igor Stravinsky—which rejected popular solutions to modern problems), the rise of fascism, the Great Depression, and the march to war helped to radicalise a generation. Bertolt Brecht, W. H. Auden, André Breton, Louis Aragon and the philosophers Antonio Gramsci and Walter Benjamin are perhaps the most famous exemplars of this Modernist form of Marxism. There were, however, also modernists explicitly of 'the right', including Salvador Dalí, Wyndham Lewis, T. S. Eliot, Ezra Pound, the Dutch author Menno ter Braak and others. Significant Modernist literary works continued to be created in the 1920s and 1930s, including further novels by Marcel Proust, Virginia Woolf, Robert Musil, and Dorothy Richardson. The American Modernist dramatist Eugene O'Neill's career began in 1914, but his major works appeared in the 1920s, 1930s and early 1940s. Two other significant Modernist dramatists writing in the 1920s and 1930s were Bertolt Brecht and Federico García Lorca. D. H. Lawrence's Lady Chatterley's Lover was privately published in 1928, while another important landmark for the history of the modern novel came with the publication of William Faulkner's The Sound and the Fury in 1929. In the 1930s, in addition to further major works by Faulkner, Samuel Beckett published his first major work, the novel Murphy (1938). Then in 1939 James Joyce's Finnegans Wake appeared. This is written in a largely idiosyncratic language, consisting of a mixture of standard English lexical items and neologistic multilingual puns and portmanteau words, which attempts to recreate the experience of sleep and dreams. In poetry T. S. Eliot, E. E. Cummings, and Wallace Stevens were writing from the 1920s until the 1950s. While Modernist poetry in English is often viewed as an American phenomenon, with leading exponents including Ezra Pound, T. S. Eliot, Marianne Moore, William Carlos Williams, H.D., and Louis Zukofsky, there were important British Modernist poets, including David Jones, Hugh MacDiarmid, Basil Bunting, and W. H. Auden. European Modernist poets include Federico García Lorca, Anna Akhmatova, Constantine Cavafy, and Paul Valéry. The Modernist movement continued during this period in Soviet Russia. In 1930 composer Dimitri Shostakovich's (1906–1975) opera The Nose was premiered, in which he uses a montage of different styles, including folk music, popular song and atonality. Amongst his influences was Alban Berg's (1985–1935) opera Wozzeck (1925), which "had made a tremendous impression on Shostakovich when it was staged in Leningrad." However, from 1932 Socialist realism began to oust Modernism in the Soviet Union, and in 1936 Shostakovich was attacked and forced to withdraw his 4th Symphony. Alban Berg wrote another significant, though incomplete, Modernist opera, Lulu, which premiered in 1937. Berg's Violin Concerto was first performed in 1935. Like Shostakovich, other composers faced difficulties in this period. In Germany Arnold Schoenberg (1874–1951) was forced to flee to the U.S. when Hitler came to power in 1933, because of his Modernist atonal style as well as his Jewish ancestry. His major works from this period are a Violin Concerto, Op. 36 (1934/36), and a Piano Concerto, Op. 42 (1942). Schoenberg also wrote tonal music in this period with the Suite for Strings in G major (1935) and the Chamber Symphony No. 2 in E minor, Op. 38 (begun in 1906, completed in 1939). During this time Hungarian Modernist Béla Bartók (1881–1945) produced a number of major works, including Music for Strings, Percussion and Celesta (1936) and the Divertimento for String Orchestra (1939), String Quartet No. 5 (1934), and No. 6 (his last, 1939). But he too left for the US in 1940, because of the rise of fascism in Hungary. Igor Stravinsky (1882–1971) continued writing in his neoclassical style during the 1930s and 1940s, writing works like the Symphony of Psalms (1930), Symphony in C (1940) and Symphony in Three Movements (1945). He also emigrated to the US because of World War II. Olivier Messiaen (1908–1992), however, served in the French army during the war and was imprisoned at Stalag VIII-A by the Germans, where he composed his famous Quatuor pour la fin du temps ("Quartet for the End of Time"). The quartet was first performed in January 1941 to an audience of prisoners and prison guards. In painting, during the 1920s and the 1930s and the Great Depression, modernism was defined by Surrealism, late Cubism, Bauhaus, De Stijl, Dada, German Expressionism, and Modernist and masterful color painters like Henri Matisse and Pierre Bonnard as well as the abstractions of artists like Piet Mondrian and Wassily Kandinsky which characterized the European art scene. In Germany, Max Beckmann, Otto Dix, George Grosz and others politicized their paintings, foreshadowing the coming of World War II, while in America, modernism is seen in the form of American Scene painting and the social realism and regionalism movements that contained both political and social commentary dominated the art world. Artists like Ben Shahn, Thomas Hart Benton, Grant Wood, George Tooker, John Steuart Curry, Reginald Marsh, and others became prominent. Modernism is defined in Latin America by painters Joaquín Torres-García from Uruguay and Rufino Tamayo from Mexico, while the muralist movement with Diego Rivera, David Siqueiros, José Clemente Orozco, Pedro Nel Gómez and Santiago Martínez Delgado, and Symbolist paintings by Frida Kahlo, began a renaissance of the arts for the region, characterized by a freer use of color and an emphasis on political messages. Diego Rivera is perhaps best known by the public world for his 1933 mural, Man at the Crossroads, in the lobby of the RCA Building at Rockefeller Center. When his patron Nelson Rockefeller discovered that the mural included a portrait of Vladimir Lenin and other communist imagery, he fired Rivera, and the unfinished work was eventually destroyed by Rockefeller's staff. Frida Kahlo's works are often characterized by their stark portrayals of pain. Kahlo was deeply influenced by indigenous Mexican culture, which is apparent in her paintings' bright colors and dramatic symbolism. Christian and Jewish themes are often depicted in her work as well; she combined elements of the classic religious Mexican tradition, which were often bloody and violent. Frida Kahlo's Symbolist works relate strongly to Surrealism and to the magic realism movement in literature. Political activism was an important piece of David Siqueiros' life, and frequently inspired him to set aside his artistic career. His art was deeply rooted in the Mexican Revolution. The period from the 1920s to the 1950s is known as the Mexican Renaissance, and Siqueiros was active in the attempt to create an art that was at once Mexican and universal. The young Jackson Pollock attended the workshop and helped build floats for the parade. During the 1930s radical leftist politics characterized many of the artists connected to Surrealism, including Pablo Picasso. On 26 April 1937, during the Spanish Civil War, the Basque town of Gernika was bombed by Nazi Germany's Luftwaffe. The Germans were attacking to support the efforts of Francisco Franco to overthrow the Basque government and the Spanish Republican government. Pablo Picasso painted his mural-sized Guernica to commemorate the horrors of the bombing. During the Great Depression of the 1930s and through the years of World War II, American art was characterized by social realism and American Scene painting, in the work of Grant Wood, Edward Hopper, Ben Shahn, Thomas Hart Benton, and several others. Nighthawks (1942) is a painting by Edward Hopper that portrays people sitting in a downtown diner late at night. It is not only Hopper's most famous painting, but one of the most recognizable in American art. The scene was inspired by a diner in Greenwich Village. Hopper began painting it immediately after the attack on Pearl Harbor. After this event there was a large feeling of gloominess over the country, a feeling that is portrayed in the painting. The urban street is empty outside the diner, and inside none of the three patrons is apparently looking or talking to the others but instead is lost in their own thoughts. This portrayal of modern urban life as empty or lonely is a common theme throughout Hopper's work. American Gothic is a painting by Grant Wood from 1930. Portraying a pitchfork-holding farmer and a younger woman in front of a house of Carpenter Gothic style, it is one of the most familiar images in 20th-century American art. Art critics had favorable opinions about the painting; like Gertrude Stein and Christopher Morley, they assumed the painting was meant to be a satire of rural small-town life. It was thus seen as part of the trend towards increasingly critical depictions of rural America, along the lines of Sherwood Anderson's 1919 Winesburg, Ohio, Sinclair Lewis's 1920 Main Street, and Carl Van Vechten's The Tattooed Countess in literature. However, with the onset of the Great Depression, the painting came to be seen as a depiction of steadfast American pioneer spirit. The situation for artists in Europe during the 1930s deteriorated rapidly as the Nazis' power in Germany and across Eastern Europe increased. Degenerate art was a term adopted by the Nazi regime in Germany for virtually all modern art. Such art was banned on the grounds that it was un-German or Jewish Bolshevist in nature, and those identified as degenerate artists were subjected to sanctions. These included being dismissed from teaching positions, being forbidden to exhibit or to sell their art, and in some cases being forbidden to produce art entirely. Degenerate Art was also the title of an exhibition, mounted by the Nazis in Munich in 1937. The climate became so hostile for artists and art associated with modernism and abstraction that many left for the Americas. German artist Max Beckmann and scores of others fled Europe for New York. In New York City a new generation of young and exciting Modernist painters led by Arshile Gorky, Willem de Kooning, and others were just beginning to come of age. Arshile Gorky's portrait of someone who might be Willem de Kooning is an example of the evolution of abstract expressionism from the context of figure painting, cubism and surrealism. Along with his friends de Kooning and John D. Graham, Gorky created biomorphically shaped and abstracted figurative compositions that by the 1940s evolved into totally abstract paintings. Gorky's work seems to be a careful analysis of memory, emotion and shape, using line and color to express feeling and nature. After World War II (mainly the visual and performing arts) Introduction While The Oxford Encyclopedia of British Literature states that modernism ended by c. 1939 with regard to British and American literature, "When (if) Modernism petered out and postmodernism began has been contested almost as hotly as when the transition from Victorianism to Modernism occurred." Clement Greenberg sees modernism ending in the 1930s, with the exception of the visual and performing arts, but with regard to music, Paul Griffiths notes that, while Modernism "seemed to be a spent force" by the late 1920s, after World War II, "a new generation of composers—Boulez, Barraqué, Babbitt, Nono, Stockhausen, Xenakis" revived modernism". In fact many literary modernists lived into the 1950s and 1960s, though generally they were no longer producing major works. The term "late modernism" is also sometimes applied to Modernist works published after 1930. Among modernists (or late modernists) still publishing after 1945 were Wallace Stevens, Gottfried Benn, T. S. Eliot, Anna Akhmatova, William Faulkner, Dorothy Richardson, John Cowper Powys, and Ezra Pound. Basil Bunting, born in 1901, published his most important Modernist poem Briggflatts in 1965. In addition, Hermann Broch's The Death of Virgil was published in 1945 and Thomas Mann's Doctor Faustus in 1947. Samuel Beckett, who died in 1989, has been described as a "later Modernist". Beckett is a writer with roots in the expressionist tradition of Modernism, who produced works from the 1930s until the 1980s, including Molloy (1951), Waiting for Godot (1953), Happy Days (1961), and Rockaby (1981). The terms "minimalist" and "post-Modernist" have also been applied to his later works. The poets Charles Olson (1910–1970) and J. H. Prynne (born 1936) are among the writers in the second half of the 20th century who have been described as late modernists. More recently the term "late modernism" has been redefined by at least one critic and used to refer to works written after 1945, rather than 1930. With this usage goes the idea that the ideology of modernism was significantly re-shaped by the events of World War II, especially the Holocaust and the dropping of the atom bomb. The postwar period left the capitals of Europe in upheaval with an urgency to economically and physically rebuild and to politically regroup. In Paris (the former center of European culture and the former capital of the art world) the climate for art was a disaster. Important collectors, dealers, and Modernist artists, writers, and poets had fled Europe for New York and America. The surrealists and modern artists from every cultural center of Europe had fled the onslaught of the Nazis for safe haven in the United States. Many of those who didn't flee perished. A few artists, notably Pablo Picasso, Henri Matisse, and Pierre Bonnard, remained in France and survived. The 1940s in New York City heralded the triumph of American abstract expressionism, a Modernist movement that combined lessons learned from Henri Matisse, Pablo Picasso, surrealism, Joan Miró, cubism, Fauvism, and early modernism via great teachers in America like Hans Hofmann and John D. Graham. American artists benefited from the presence of Piet Mondrian, Fernand Léger, Max Ernst and the André Breton group, Pierre Matisse's gallery, and Peggy Guggenheim's gallery The Art of This Century, as well as other factors. Paris, moreover, recaptured much of its luster in the 1950s and 60s as the center of a machine art florescence, with both of the leading machine art sculptors Jean Tinguely and Nicolas Schöffer having moved there to launch their careers—and which florescence, in light of the technocentric character of modern life, may well have a particularly long lasting influence. Theatre of the Absurd The term "Theatre of the Absurd" is applied to plays, written primarily by Europeans, that express the belief that human existence has no meaning or purpose and therefore all communication breaks down. Logical construction and argument gives way to irrational and illogical speech and to its ultimate conclusion, silence. While there are significant precursors, including Alfred Jarry (1873–1907), the Theatre of the Absurd is generally seen as beginning in the 1950s with the plays of Samuel Beckett. Critic Martin Esslin coined the term in his 1960 essay "Theatre of the Absurd". He related these plays based on a broad theme of the Absurd, similar to the way Albert Camus uses the term in his 1942 essay, The Myth of Sisyphus. The Absurd in these plays takes the form of man's reaction to a world apparently without meaning, and/or man as a puppet controlled or menaced by invisible outside forces. Though the term is applied to a wide range of plays, some characteristics coincide in many of the plays: broad comedy, often similar to vaudeville, mixed with horrific or tragic images; characters caught in hopeless situations forced to do repetitive or meaningless actions; dialogue full of clichés, wordplay, and nonsense; plots that are cyclical or absurdly expansive; either a parody or dismissal of realism and the concept of the "well-made play". Playwrights commonly associated with the Theatre of the Absurd include Samuel Beckett (1906–1989), Eugène Ionesco (1909–1994), Jean Genet (1910–1986), Harold Pinter (1930–2008), Tom Stoppard (born 1937), Alexander Vvedensky (1904–1941), Daniil Kharms (1905–1942), Friedrich Dürrenmatt (1921–1990), Alejandro Jodorowsky (born 1929), Fernando Arrabal (born 1932), Václav Havel (1936–2011) and Edward Albee (1928–2016). Pollock and abstract influences During the late 1940s Jackson Pollock's radical approach to painting revolutionized the potential for all contemporary art that followed him. To some extent Pollock realized that the journey toward making a work of art was as important as the work of art itself. Like Pablo Picasso's innovative reinventions of painting and sculpture in the early 20th century via Cubism and constructed sculpture, Pollock redefined the way art is made. His move away from easel painting and conventionality was a liberating signal to the artists of his era and to all who came after. Artists realized that Jackson Pollock's process—placing unstretched raw canvas on the floor where it could be attacked from all four sides using artistic and industrial materials; dripping and throwing linear skeins of paint; drawing, staining, and brushing; using imagery and nonimagery—essentially blasted artmaking beyond any prior boundary. Abstract expressionism generally expanded and developed the definitions and possibilities available to artists for the creation of new works of art. The other abstract expressionists followed Pollock's breakthrough with new breakthroughs of their own. In a sense the innovations of Jackson Pollock, Willem de Kooning, Franz Kline, Mark Rothko, Philip Guston, Hans Hofmann, Clyfford Still, Barnett Newman, Ad Reinhardt, Robert Motherwell, Peter Voulkos and others opened the floodgates to the diversity and scope of all the art that followed them. Rereadings into abstract art by art historians such as Linda Nochlin, Griselda Pollock and Catherine de Zegher critically show, however, that pioneering women artists who produced major innovations in modern art had been ignored by official accounts of its history. International figures from British art Henry Moore (1898–1986) emerged after World War II as Britain's leading sculptor. He was best known for his semi-abstract monumental bronze sculptures which are located around the world as public works of art. His forms are usually abstractions of the human figure, typically depicting mother-and-child or reclining figures, usually suggestive of the female body, apart from a phase in the 1950s when he sculpted family groups. His forms are generally pierced or contain hollow spaces. In the 1950s, Moore began to receive increasingly significant commissions, including a reclining figure for the UNESCO building in Paris in 1958. With many more public works of art, the scale of Moore's sculptures grew significantly. The last three decades of Moore's life continued in a similar vein, with several major retrospectives taking place around the world, notably a prominent exhibition in the summer of 1972 in the grounds of the Forte di Belvedere overlooking Florence. By the end of the 1970s, there were some 40 exhibitions a year featuring his work. On the campus of the University of Chicago in December 1967, 25 years to the minute after the team of physicists led by Enrico Fermi achieved the first controlled, self-sustaining nuclear chain reaction, Moore's Nuclear Energy was unveiled. Also in Chicago, Moore commemorated science with a large bronze sundial, locally named Man Enters the Cosmos (1980), which was commissioned to recognise the space exploration program. The "London School" of figurative painters, including Francis Bacon (1909–1992), Lucian Freud (1922–2011), Frank Auerbach (born 1931), Leon Kossoff (born 1926), and Michael Andrews (1928–1995), have received widespread international recognition. Francis Bacon was an Irish-born British figurative painter known for his bold, graphic and emotionally raw imagery. His painterly but abstracted figures typically appear isolated in glass or steel geometrical cages set against flat, nondescript backgrounds. Bacon began painting during his early 20s but worked only sporadically until his mid-30s. His breakthrough came with the 1944 triptych Three Studies for Figures at the Base of a Crucifixion which sealed his reputation as a uniquely bleak chronicler of the human condition. His output can be crudely described as consisting of sequences or variations on a single motif; beginning with the 1940s male heads isolated in rooms, the early 1950s screaming popes, and mid to late 1950s animals and lone figures suspended in geometric structures. These were followed by his early 1960s modern variations of the crucifixion in the triptych format. From the mid-1960s to early 1970s, Bacon mainly produced strikingly compassionate portraits of friends. Following the suicide of his lover George Dyer in 1971, his art became more personal, inward-looking, and preoccupied with themes and motifs of death. During his lifetime, Bacon was equally reviled and acclaimed. Lucian Freud was a German-born British painter, known chiefly for his thickly impastoed portrait and figure paintings, who was widely considered the pre-eminent British artist of his time. His works are noted for their psychological penetration, and for their often discomforting examination of the relationship between artist and model. According to William Grimes of The New York Times, "Lucien Freud and his contemporaries transformed figure painting in the 20th century. In paintings like Girl with a White Dog (1951–1952), Freud put the pictorial language of traditional European painting in the service of an anti-romantic, confrontational style of portraiture that stripped bare the sitter's social facade. Ordinary people—many of them his friends—stared wide-eyed from the canvas, vulnerable to the artist's ruthless inspection." In the 1960s after abstract expressionism In abstract painting during the 1950s and 1960s several new directions like hard-edge painting and other forms of geometric abstraction began to appear in artist studios and in radical avant-garde circles as a reaction against the subjectivism of abstract expressionism. Clement Greenberg became the voice of post-painterly abstraction when he curated an influential exhibition of new painting that toured important art museums throughout the United States in 1964. color field painting, hard-edge painting and lyrical abstraction emerged as radical new directions. By the late 1960s however, postminimalism, process art and Arte Povera also emerged as revolutionary concepts and movements that encompassed both painting and sculpture, via lyrical abstraction and the postminimalist movement, and in early conceptual art. Process art as inspired by Pollock enabled artists to experiment with and make use of a diverse encyclopedia of style, content, material, placement, sense of time, and plastic and real space. Nancy Graves, Ronald Davis, Howard Hodgkin, Larry Poons, Jannis Kounellis, Brice Marden, Colin McCahon, Bruce Nauman, Richard Tuttle, Alan Saret, Walter Darby Bannard, Lynda Benglis, Dan Christensen, Larry Zox, Ronnie Landfield, Eva Hesse, Keith Sonnier, Richard Serra, Pat Lipsky, Sam Gilliam, Mario Merz and Peter Reginato were some of the younger artists who emerged during the era of late modernism that spawned the heyday of the art of the late 1960s. Pop art In 1962 the Sidney Janis Gallery mounted The New Realists, the first major pop art group exhibition in an uptown art gallery in New York City. Janis mounted the exhibition in a 57th Street storefront near his gallery. The show sent shockwaves through the New York School and reverberated worldwide. Earlier in England in 1958 the term "Pop Art" was used by Lawrence Alloway to describe paintings that celebrated the consumerism of the post World War II era. This movement rejected abstract expressionism and its focus on the hermeneutic and psychological interior in favor of art that depicted and often celebrated material consumer culture, advertising, and the iconography of the mass production age. The early works of David Hockney and the works of Richard Hamilton and Eduardo Paolozzi (who created the groundbreaking I was a Rich Man's Plaything, 1947) are considered seminal examples in the movement. Meanwhile, in the downtown scene in New York's East Village 10th Street galleries, artists were formulating an American version of pop art. Claes Oldenburg had his storefront, and the Green Gallery on 57th Street began to show the works of Tom Wesselmann and James Rosenquist. Later Leo Castelli exhibited the works of other American artists, including those of Andy Warhol and Roy Lichtenstein for most of their careers. There is a connection between the radical works of Marcel Duchamp and Man Ray, the rebellious Dadaists with a sense of humor, and pop artists like Claes Oldenburg, Andy Warhol, and Roy Lichtenstein, whose paintings reproduce the look of Ben-Day dots, a technique used in commercial reproduction. Minimalism Minimalism describes movements in various forms of art and design, especially visual art and music, wherein artists intend to expose the essence or identity of a subject through eliminating all nonessential forms, features, or concepts. Minimalism is any design or style wherein the simplest and fewest elements are used to create the maximum effect. As a specific movement in the arts it is identified with developments in post–World War II Western art, most strongly with American visual arts in the 1960s and early 1970s. Prominent artists associated with this movement include Donald Judd, John McCracken, Agnes Martin, Dan Flavin, Robert Morris, Ronald Bladen, Anne Truitt, and Frank Stella. It derives from the reductive aspects of modernism and is often interpreted as a reaction against Abstract expressionism and a bridge to Postminimal art practices. By the early 1960s minimalism emerged as an abstract movement in art (with roots in the geometric abstraction of Kazimir Malevich, the Bauhaus and Piet Mondrian) that rejected the idea of relational and subjective painting, the complexity of abstract expressionist surfaces, and the emotional zeitgeist and polemics present in the arena of action painting. Minimalism argued that extreme simplicity could capture all of the sublime representation needed in art. Minimalism is variously construed either as a precursor to postmodernism, or as a postmodern movement itself. In the latter perspective, early minimalism yielded advanced Modernist works, but the movement partially abandoned this direction when some artists like Robert Morris changed direction in favor of the anti-form movement. Hal Foster, in his essay The Crux of Minimalism, examines the extent to which Donald Judd and Robert Morris both acknowledge and exceed Greenbergian Modernism in their published definitions of minimalism. He argues that minimalism is not a "dead end" of Modernism, but a "paradigm shift toward postmodern practices that continue to be elaborated today." Minimal music The terms have expanded to encompass a movement in music that features such repetition and iteration as those of the compositions of La Monte Young, Terry Riley, Steve Reich, Philip Glass, and John Adams. Minimalist compositions are sometimes known as systems music. The term 'minimal music' is generally used to describe a style of music that developed in America in the late 1960s and 1970s; and that was initially connected with the composers. The minimalism movement originally involved some composers, and other lesser known pioneers included Pauline Oliveros, Phill Niblock, and Richard Maxfield. In Europe, the music of Louis Andriessen, Karel Goeyvaerts, Michael Nyman, Howard Skempton, Eliane Radigue, Gavin Bryars, Steve Martland, Henryk Górecki, Arvo Pärt and John Tavener. Postminimalism In the late 1960s Robert Pincus-Witten coined the term "postminimalism" to describe minimalist-derived art which had content and contextual overtones that minimalism rejected. The term was applied by Pincus-Whitten to the work of Eva Hesse, Keith Sonnier, Richard Serra and new work by former minimalists Robert Smithson, Robert Morris, Sol LeWitt, Barry Le Va, and others. Other minimalists including Donald Judd, Dan Flavin, Carl Andre, Agnes Martin, John McCracken and others continued to produce late Modernist paintings and sculpture for the remainders of their careers. Since then, many artists have embraced minimal or postminimal styles, and the label "Postmodern" has been attached to them. Collage, assemblage, installations Related to abstract expressionism was the emergence of combining manufactured items with artist materials, moving away from previous conventions of painting and sculpture. The work of Robert Rauschenberg exemplifies this trend. His "combines" of the 1950s were forerunners of pop art and installation art, and used assemblages of large physical objects, including stuffed animals, birds and commercial photographs. Rauschenberg, Jasper Johns, Larry Rivers, John Chamberlain, Claes Oldenburg, George Segal, Jim Dine, and Edward Kienholz were among important pioneers of both abstraction and pop art. Creating new conventions of art-making, they made acceptable in serious contemporary art circles the radical inclusion in their works of unlikely materials. Another pioneer of collage was Joseph Cornell, whose more intimately scaled works were seen as radical because of both his personal iconography and his use of found objects. Neo-Dada In the early 20th century Marcel Duchamp submitted for exhibition a urinal as a sculpture. He professed his intent that people look at the urinal as if it were a work of art because he said it was a work of art. He referred to his work as "readymades". Fountain was a urinal signed with the pseudonym "R. Mutt", the exhibition of which shocked the art world in 1917. This and Duchamp's other works are generally labelled as Dada. Duchamp can be seen as a precursor to conceptual art, other famous examples being John Cage's 4′33″, which is four minutes and thirty three seconds of silence, and Rauschenberg's Erased de Kooning Drawing. Many conceptual works take the position that art is the result of the viewer viewing an object or act as art, not of the intrinsic qualities of the work itself. In choosing "an ordinary article of life" and creating "a new thought for that object" Duchamp invited onlookers to view Fountain as a sculpture. Marcel Duchamp famously gave up "art" in favor of chess. Avant-garde composer David Tudor created a piece, Reunion (1968), written jointly with Lowell Cross, that features a chess game in which each move triggers a lighting effect or projection. Duchamp and Cage played the game at the work's premier. Steven Best and Douglas Kellner identify Rauschenberg and Jasper Johns as part of the transitional phase, influenced by Duchamp, between Modernism and Postmodernism. Both used images of ordinary objects, or the objects themselves, in their work, while retaining the abstraction and painterly gestures of high Modernism. Performance and happenings During the late 1950s and 1960s artists with a wide range of interests began to push the boundaries of contemporary art. Yves Klein in France, Carolee Schneemann, Yayoi Kusama, Charlotte Moorman and Yoko Ono in New York City, and Joseph Beuys, Wolf Vostell and Nam June Paik in Germany were pioneers of performance-based works of art. Groups like The Living Theatre with Julian Beck and Judith Malina collaborated with sculptors and painters creating environments, radically changing the relationship between audience and performer, especially in their piece Paradise Now. The Judson Dance Theater, located at the Judson Memorial Church, New York; and the Judson dancers, notably Yvonne Rainer, Trisha Brown, Elaine Summers, Sally Gross, Simonne Forti, Deborah Hay, Lucinda Childs, Steve Paxton and others; collaborated with artists Robert Morris, Robert Whitman, John Cage, Robert Rauschenberg, and engineers like Billy Klüver. Park Place Gallery was a center for musical performances by electronic composers Steve Reich, Philip Glass, and other notable performance artists including Joan Jonas. These performances were intended as works of a new art form combining sculpture, dance, and music or sound, often with audience participation. They were characterized by the reductive philosophies of minimalism and the spontaneous improvisation and expressivity of abstract expressionism. Images of Schneeman's performances of pieces meant to shock are occasionally used to illustrate these kinds of art, and she is often seen photographed while performing her piece Interior Scroll. However, according to modernist philosophy surrounding performance art, it is cross-purposes to publish images of her performing this piece, for performance artists reject publication entirely: the performance itself is the medium. Thus, other media cannot illustrate performance art; performance is momentary, evanescent, and personal, not for capturing; representations of performance art in other media, whether by image, video, narrative or otherwise, select certain points of view in space or time or otherwise involve the inherent limitations of each medium. The artists deny that recordings illustrate the medium of performance as art. During the same period, various avant-garde artists created Happenings, mysterious and often spontaneous and unscripted gatherings of artists and their friends and relatives in various specified locations, often incorporating exercises in absurdity, physicality, costuming, spontaneous nudity, and various random or seemingly disconnected acts. Notable creators of happenings included Allan Kaprow—who first used the term in 1958, Claes Oldenburg, Jim Dine, Red Grooms, and Robert Whitman. Intermedia, multi-media Another trend in art which has been associated with the term postmodern is the use of a number of different media together. Intermedia is a term coined by Dick Higgins and meant to convey new art forms along the lines of Fluxus, concrete poetry, found objects, performance art, and computer art. Higgins was the publisher of the Something Else Press, a concrete poet married to artist Alison Knowles and an admirer of Marcel Duchamp. Ihab Hassan includes "Intermedia, the fusion of forms, the confusion of realms," in his list of the characteristics of postmodern art. One of the most common forms of "multi-media art" is the use of video-tape and CRT monitors, termed video art. While the theory of combining multiple arts into one art is quite old, and has been revived periodically, the postmodern manifestation is often in combination with performance art, where the dramatic subtext is removed, and what is left is the specific statements of the artist in question or the conceptual statement of their action. Fluxus Fluxus was named and loosely organized in 1962 by George Maciunas (1931–1978), a Lithuanian-born American artist. Fluxus traces its beginnings to John Cage's 1957 to 1959 Experimental Composition classes at The New School for Social Research in New York City. Many of his students were artists working in other media with little or no background in music. Cage's students included Fluxus founding members Jackson Mac Low, Al Hansen, George Brecht and Dick Higgins. Fluxus encouraged a do-it-yourself aesthetic and valued simplicity over complexity. Like Dada before it, Fluxus included a strong current of anti-commercialism and an anti-art sensibility, disparaging the conventional market-driven art world in favor of an artist-centered creative practice. Fluxus artists preferred to work with whatever materials were at hand, and either created their own work or collaborated in the creation process with their colleagues. Andreas Huyssen criticises attempts to claim Fluxus for Postmodernism as "either the master-code of postmodernism or the ultimately unrepresentable art movement—as it were, postmodernism's sublime." Instead he sees Fluxus as a major Neo-Dadaist phenomena within the avant-garde tradition. It did not represent a major advance in the development of artistic strategies, though it did express a rebellion against "the administered culture of the 1950s, in which a moderate, domesticated modernism served as ideological prop to the Cold War." Avant-garde popular music Modernism had an uneasy relationship with popular forms of music (both in form and aesthetic) while rejecting popular culture. Despite this, Stravinsky used jazz idioms on his pieces like "Ragtime" from his 1918 theatrical work Histoire du Soldat and 1945's Ebony Concerto. In the 1960s, as popular music began to gain cultural importance and question its status as commercial entertainment, musicians began to look to the post-war avant-garde for inspiration. In 1959, music producer Joe Meek recorded I Hear a New World (1960), which Tiny Mix Tapes Jonathan Patrick calls a "seminal moment in both electronic music and avant-pop history [...] a collection of dreamy pop vignettes, adorned with dubby echoes and tape-warped sonic tendrils" which would be largely ignored at the time. Other early avant-pop productions included the Beatles's 1966 song "Tomorrow Never Knows", which incorporated techniques from musique concrète, avant-garde composition, Indian music, and electro-acoustic sound manipulation into a 3-minute pop format, and the Velvet Underground's integration of La Monte Young's minimalist and drone music ideas, beat poetry, and 1960s pop art. Late period The continuation of abstract expressionism, color field painting, lyrical abstraction, geometric abstraction, minimalism, abstract illusionism, process art, pop art, postminimalism, and other late 20th-century Modernist movements in both painting and sculpture continued through the first decade of the 21st century and constitute radical new directions in those mediums. At the turn of the 21st century, well-established artists such as Sir Anthony Caro, Lucian Freud, Cy Twombly, Robert Rauschenberg, Jasper Johns, Agnes Martin, Al Held, Ellsworth Kelly, Helen Frankenthaler, Frank Stella, Kenneth Noland, Jules Olitski, Claes Oldenburg, Jim Dine, James Rosenquist, Alex Katz, Philip Pearlstein, and younger artists including Brice Marden, Chuck Close, Sam Gilliam, Isaac Witkin, Sean Scully, Mahirwan Mamtani, Joseph Nechvatal, Elizabeth Murray, Larry Poons, Richard Serra, Walter Darby Bannard, Larry Zox, Ronnie Landfield, Ronald Davis, Dan Christensen, Pat Lipsky, Joel Shapiro, Tom Otterness, Joan Snyder, Ross Bleckner, Archie Rand, Susan Crile, and others continued to produce vital and influential paintings and sculpture. Modernism in Africa and Asia Peter Kalliney suggests that "Modernist concepts, especially aesthetic autonomy, were fundamental to the literature of decolonization in anglophone Africa." In his opinion, Rajat Neogy, Christopher Okigbo, and Wole Soyinka, were among the writers who "repurposed modernist versions of aesthetic autonomy to declare their freedom from colonial bondage, from systems of racial discrimination, and even from the new postcolonial state". The terms "modernism" and "modernist", according to scholar William J. Tyler, "have only recently become part of the standard discourse in English on modern Japanese literature and doubts concerning their authenticity vis-a-vis Western European modernism remain". Tyler finds this odd, given "the decidedly modern prose" of such "well-known Japanese writers as Kawabata Yasunari, Nagai Kafu, and Jun'ichirō Tanizaki". However, "scholars in the visual and fine arts, architecture, and poetry readily embraced "modanizumu" as a key concept for describing and analyzing Japanese culture in the 1920s and 1930s". In 1924, various young Japanese writers, including Kawabata and Riichi Yokomitsu started a literary journal Bungei Jidai ("The Artistic Age"). This journal was "part of an 'art for art's sake' movement, influenced by European Cubism, Expressionism, Dada, and other modernist styles". Japanese modernist architect Kenzō Tange (1913–2005) was one of the most significant architects of the 20th century, combining traditional Japanese styles with modernism, and designing major buildings on five continents. Tange was also an influential patron of the Metabolist movement. He said: "It was, I believe, around 1959 or at the beginning of the sixties that I began to think about what I was later to call structuralism", He was influenced from an early age by the Swiss modernist, Le Corbusier, Tange gained international recognition in 1949 when he won the competition for the design of Hiroshima Peace Memorial Park. In China the "New Sensationists" (新感觉派, Xīn Gǎnjué Pài) were a group of writers based in Shanghai who in the 1930s and 1940s were influenced, to varying degrees, by Western and Japanese modernism. They wrote fiction that was more concerned with the unconscious and with aesthetics than with politics or social problems. Among these writers were Mu Shiying and Shi Zhecun. In India, the Progressive Artists' Group was a group of modern artists, mainly based in Mumbai, India formed in 1947. Though it lacked any particular style, it synthesised Indian art with European and North America influences from the first half of the 20th century, including Post-Impressionism, Cubism and Expressionism. Differences between modernism and postmodernism By the early 1980s the Postmodern movement in art and architecture began to establish its position through various conceptual and intermedia formats. Postmodernism in music and literature began to take hold earlier. In music, postmodernism is described in one reference work as a "term introduced in the 1970s", while in British literature, The Oxford Encyclopedia of British Literature sees modernism "ceding its predominance to postmodernism" as early as 1939. However, dates are highly debatable, especially as according to Andreas Huyssen: "one critic's postmodernism is another critic's modernism." This includes those who are critical of the division between the two and see them as two aspects of the same movement, and believe that late Modernism continues. Modernism is an encompassing label for a wide variety of cultural movements. Postmodernism is essentially a centralized movement that named itself, based on sociopolitical theory, although the term is now used in a wider sense to refer to activities from the 20th century onwards which exhibit awareness of and reinterpret the modern. Postmodern theory asserts that the attempt to canonise Modernism "after the fact" is doomed to undisambiguable contradictions. In a narrower sense, what was Modernist was not necessarily also postmodern. Those elements of Modernism which accentuated the benefits of rationality and socio-technological progress were only Modernist. Attack and criticism to modernism Modernism's stress on freedom of expression, experimentation, radicalism, and primitivism disregards conventional expectations. In many art forms this often meant startling and alienating audiences with bizarre and unpredictable effects, as in the strange and disturbing combinations of motifs in Surrealism or the use of extreme dissonance and atonality in Modernist music. In literature this often involved the rejection of intelligible plots or characterization in novels, or the creation of poetry that defied clear interpretation. From 1932, socialist realism began to oust Modernism in the Soviet Union; it had previously endorsed Futurism and Constructivism. The Nazi government of Germany deemed modernism narcissistic and nonsensical, as well as "Jewish" (see Antisemitism) and "Negro". The Nazis exhibited Modernist paintings alongside works by the mentally ill in an exhibition entitled "Degenerate Art". Accusations of "formalism" could lead to the end of a career, or worse. For this reason many modernists of the postwar generation felt that they were the most important bulwark against totalitarianism, the "canary in the coal mine", whose repression by a government or other group with supposed authority represented a warning that individual liberties were being threatened. Louis A. Sass compared madness, specifically schizophrenia, and modernism in a less fascist manner by noting their shared disjunctive narratives, surreal images, and incoherence. In fact, modernism flourished mainly in consumer/capitalist societies, despite the fact that its proponents often rejected consumerism itself. However, high modernism began to merge with consumer culture after World War II, especially during the 1960s. Modernist devices also started to appear in popular cinema, and later on in music videos. Modernist design also began to enter the mainstream of popular culture, as simplified and stylized forms became popular, often associated with dreams of a space age high-tech future. In 2008, Janet Bennett published Modernity and Its Critics through The Oxford Handbook of Political Theory. Merging of consumer and high versions of Modernist culture led to a radical transformation of the meaning of "Modernism". First, it implied that a movement based on the rejection of tradition had become a tradition of its own. Second, it demonstrated that the distinction between elite Modernist and mass consumerist culture had lost its precision. Modernism had become so institutionalized that it was now "post avant-garde", indicating that it had lost its power as a revolutionary movement. Many have interpreted this transformation as the beginning of the phase that became known as postmodernism. For others, such as art critic Robert Hughes, postmodernism represents an extension of modernism. "Anti-modern" or "counter-modern" movements seek to emphasize holism, connection and spirituality as remedies or antidotes to modernism. Such movements see modernism as reductionist, and therefore subject to an inability to see systemic and emergent effects. Some traditionalist artists like Alexander Stoddart reject modernism generally as the product of "an epoch of false money allied with false culture". In some fields, the effects of modernism have remained stronger and more persistent than in others. Visual art has made the most complete break with its past. Most major capital cities have museums devoted to modern art as distinct from post-Renaissance art (c. 1400 to c. 1900). Examples include the Museum of Modern Art in New York, the Tate Modern in London, and the Centre Pompidou in Paris. These galleries make no distinction between modernist and Postmodernist phases, seeing both as developments within Modern Art. See also Footnotes References Sources John Barth (1979) The Literature of Replenishment, later republished in The Friday Book (1984). Eco, Umberto (1990) Interpreting Serials in The limits of interpretation, pp. 83–100, excerpt Everdell, William R. (1997) The First Moderns: Profiles in the Origins of Twentieth Century Thought (Chicago: University of Chicago Press). Gerald Graff (1973) The Myth of the Postmodernist Breakthrough, TriQuarterly, 26 (Winter, 1973) 383–417; rept in The Novel Today: Contemporary Writers on Modern Fiction Malcolm Bradbury, ed. (London: Fontana, 1977); reprinted in Proza Nowa Amerykanska, ed., Szice Krytyczne (Warsaw, Poland, 1984); reprinted in Postmodernism in American Literature: A Critical Anthology, Manfred Putz and Peter Freese, eds. (Darmstadt: Thesen Verlag, 1984), 58–81. Gerald Graff (1975) Babbitt at the Abyss: The Social Context of Postmodern. American Fiction, TriQuarterly, No. 33 (Spring 1975), pp. 307–337; reprinted in Putz and Freese, eds., Postmodernism and American Literature. Orton, Fred and Pollock, Griselda (1996) Avant-Gardes and Partisans Reviewed, Manchester University. Steiner, George (1998) After Babel, ch.6 Topologies of culture, 3rd revised edition Art Berman (1994) Preface to Modernism, University of Illinois Press. Further reading Robert Archambeau. “The Avant-Garde in Babel. Two or Three Notes on Four or Five Words”, Action-Yes vol. 1, issue 8 Autumn 2008. Armstrong, Carol and de Zegher, Catherine (eds.), Women Artists as the Millennium, Cambridge, MA: October Books, MIT Press, 2006. . Aspray, William & Philip Kitcher, eds., History and Philosophy of Modern Mathematics, Minnesota Studies in the Philosophy of Science vol. XI, Minneapolis: University of Minnesota Press, 1988 Bäckström, Per (ed.), Centre-Periphery. The Avant-Garde and the Other, Nordlit. University of Tromsø, no. 21, 2007. Bäckström, Per. ”One Earth, Four or Five Words. The Peripheral Concept of ’Avant-Garde’”, Action-Yes vol. 1, issue 12 Winter 2010 Bäckström, Per & Bodil Børset (eds.), Norsk avantgarde (Norwegian Avant-Garde), Oslo: Novus, 2011. Bäckström, Per & Benedikt Hjartarson (eds.), Decentring the Avant-Garde, Amsterdam & New York: Rodopi, Avantgarde Critical Studies, 2014. Bäckström, Per and Benedikt Hjartarson. “Rethinking the Topography of the International Avant-Garde”, in Decentring the Avant-Garde, Per Bäckström & Benedikt Hjartarson (eds.), Amsterdam & New York: Rodopi, Avantgarde Critical Studies, 2014. Baker, Houston A., Jr., Modernism and the Harlem Renaissance, Chicago: University of Chicago Press, 1987 Berman, Marshall, All That Is Solid Melts Into Air: The Experience of Modernity. Second ed. London: Penguin, 1982. . Bradbury, Malcolm, & James McFarlane (eds.), Modernism: A Guide to European Literature 1890–1930 (Penguin "Penguin Literary Criticism" series, 1978, ). Brush, Stephen G., The History of Modern Science: A Guide to the Second Scientific Revolution, 1800–1950, Ames, IA: Iowa State University Press, 1988 Centre Georges Pompidou, Face a l'Histoire, 1933–1996. Flammarion, 1996. . Crouch, Christopher, Modernism in art design and architecture, New York: St. Martin's Press, 2000 Eysteinsson, Astradur, The Concept of Modernism, Ithaca, NY: Cornell University Press, 1992 Friedman, Julia. Beyond Symbolism and Surrealism: Alexei Remizov's Synthetic Art, Northwestern University Press, 2010. (Trade Cloth) Frascina, Francis, and Charles Harrison (eds.). Modern Art and Modernism: A Critical Anthology. Published in association with The Open University. London: Harper and Row, Ltd. Reprinted, London: Paul Chapman Publishing, Ltd., 1982. Gates, Henry Louis. The Norton Anthology of African American Literature. W.W. Norton & Company, Inc., 2004. Hughes, Robert, The Shock of the New: Art and the Century of Change (Gardners Books, 1991, ). Kenner, Hugh, The Pound Era (1971), Berkeley, CA: University of California Press, 1973 Kern, Stephen, The Culture of Time and Space, Cambridge, MA: Harvard University Press, 1983 Kolocotroni, Vassiliki et al., ed.,Modernism: An Anthology of Sources and Documents (Edinburgh: Edinburgh University Press, 1998). Levenson, Michael, (ed.), The Cambridge Companion to Modernism (Cambridge University Press, "Cambridge Companions to Literature" series, 1999, ). Lewis, Pericles. The Cambridge Introduction to Modernism (Cambridge: Cambridge University Press, 2007). Nicholls, Peter, Modernisms: A Literary Guide (Hampshire and London: Macmillan, 1995). Pevsner, Nikolaus, Pioneers of Modern Design: From William Morris to Walter Gropius (New Haven, CT: Yale University Press, 2005, ). The Sources of Modern Architecture and Design (Thames & Hudson, "World of Art" series, 1985, ). Pollock, Griselda, Generations and Geographies in the Visual Arts. (Routledge, London, 1996. ). Pollock, Griselda, and Florence, Penny, Looking Back to the Future: Essays by Griselda Pollock from the 1990s. (New York: G&B New Arts Press, 2001. ) Sass, Louis A. (1992). Madness and Modernism: Insanity in the Light of Modern Art, Literature, and Thought. New York: Basic Books. Cited in Bauer, Amy (2004). "Cognition, Constraints, and Conceptual Blends in Modernist Music", in The Pleasure of Modernist Music. . Schorske, Carl. Fin-de-Siècle Vienna: Politics and Culture. Vintage, 1980. . Schwartz, Sanford, The Matrix of Modernism: Pound, Eliot, and Early Twentieth Century Thought, Princeton, NJ: Princeton University Press, 1985 Tyler, William J., ed. Modanizumu: Modernist Fiction from Japan, 1913–1938. University of Hawai'i Press, 2008. Van Loo, Sofie (ed.), Gorge(l). Royal Museum of Fine Arts, Antwerp, 2006. . Weir, David, Decadence and the Making of Modernism, 1995, University of Massachusetts Press, . Weston, Richard, Modernism (Phaidon Press, 2001, ). de Zegher, Catherine, Inside the Visible. (Cambridge, MA: MIT Press, 1996). External links Ballard, J. G., on Modernism. Denzer, Anthony S., PhD, Masters of Modernism. Hoppé, E. O., photographer, Edwardian Modernists. Malady of Writing. Modernism you can dance to An online radio show that presents a humorous version of Modernism Modernism Lab @ Yale University Modernism/Modernity , official publication of the Modernist Studies Association Modernism vs. Postmodernism Pope Pius X's encyclical Pascendi, in which he defines Modernism as "the synthesis of all heresies". Aesthetics Architectural styles Art movements Modernism Theories of aesthetics

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https://en.wikipedia.org/wiki/Marshall%20McLuhan

Marshall McLuhan

Herbert Marshall McLuhan (July 21, 1911 – December 31, 1980) was a Canadian philosopher whose work is among the cornerstones of the study of media theory. Born in Edmonton, Alberta, and raised in Winnipeg, Manitoba, McLuhan studied at the University of Manitoba and the University of Cambridge. He began his teaching career as a professor of English at several universities in the United States and Canada before moving to the University of Toronto in 1946, where he remained for the rest of his life. McLuhan coined the expression "the medium is the message" and the term global village, and predicted the World Wide Web almost 30 years before it was invented. He was a fixture in media discourse in the late 1960s, though his influence began to wane in the early 1970s. In the years following his death, he continued to be a controversial figure in academic circles. However, with the arrival of the Internet and the World Wide Web, interest was renewed in his work and perspective. Life and career McLuhan was born on 21 July 1911 in Edmonton, Alberta, and was named "Marshall" after his maternal grandmother's surname. His brother, Maurice, was born two years later. His parents were both also born in Canada: his mother, Elsie Naomi (née Hall), was a Baptist school teacher who later became an actress; and his father, Herbert Ernest McLuhan, was a Methodist with a real-estate business in Edmonton. When the business failed at the break out of World War I, McLuhan's father enlisted in the Canadian Army. After a year of service, he contracted influenza and remained in Canada, away from the front lines. After Herbert's discharge from the army in 1915, the McLuhan family moved to Winnipeg, Manitoba, where Marshall grew up and went to school, attending Kelvin Technical School before enrolling in the University of Manitoba in 1928. Undergraduate education After studying for one year as an engineering student, he changed majors and earned a Bachelor of Arts degree (1933), winning a University Gold Medal in Arts and Sciences. He went on to receive a Master of Arts degree (1934) in English from the university as well. He had long desired to pursue graduate studies in England and was accepted to the University of Cambridge, having failed to secure a Rhodes scholarship to Oxford. Though having already earned his B.A. and M.A. in Manitoba, Cambridge required him to enrol as an undergraduate "affiliated" student, with one year's credit towards a three-year bachelor's degree, before entering any doctoral studies. He entered Trinity Hall, Cambridge, in the autumn of 1934, where he studied under I. A. Richards and F. R. Leavis, and was influenced by New Criticism. Years afterward, upon reflection, he credited the faculty there with influencing the direction of his later work because of their emphasis on the "training of perception", as well as such concepts as Richards' notion of "feedforward". These studies formed an important precursor to his later ideas on technological forms. He received the required bachelor's degree from Cambridge in 1936 and entered their graduate program. Conversion to Catholicism At the University of Manitoba, McLuhan explored his conflicted relationship with religion and turned to literature to "gratify his soul's hunger for truth and beauty," later referring to this stage as agnosticism. While studying the trivium at Cambridge, he took the first steps toward his eventual conversion to Catholicism in 1937, founded on his reading of G. K. Chesterton. In 1935, he wrote to his mother:Had I not encountered Chesterton I would have remained agnostic for many years at least. Chesterton did not convince me of religious faith, but he prevented my despair from becoming a habit or hardening into misanthropy. He opened my eyes to European culture and encouraged me to know it more closely. He taught me the reasons for all that in me was simply blind anger and misery.At the end of March 1937, McLuhan completed what was a slow but total conversion process, when he was formally received into the Catholic Church. After consulting a minister, his father accepted the decision to convert. His mother, however, felt that his conversion would hurt his career and was inconsolable. McLuhan was devout throughout his life, but his religion remained a private matter. He had a lifelong interest in the number three (e.g., the trivium, the Trinity) and sometimes said that the Virgin Mary provided intellectual guidance for him. For the rest of his career, he taught in Catholic institutions of higher education. Early career, marriage, and doctorate Unable to find a suitable job in Canada, he returned from England to take a job as a teaching assistant at the University of Wisconsin–Madison for the 1936–37 academic year. From 1937 to 1944, he taught English at Saint Louis University (with an interruption from 1939 to 1940 when he returned to Cambridge). There he taught courses on Shakespeare, eventually tutoring and befriending Walter J. Ong, who would write his doctoral dissertation on a topic that McLuhan had called to his attention, as well as become a well-known authority on communication and technology. McLuhan met Corinne Lewis in St. Louis, a teacher and aspiring actress from Fort Worth, Texas, whom he married on 4 August 1939. They spent 1939–40 in Cambridge, where he completed his master's degree (awarded in January 1940) and began to work on his doctoral dissertation on Thomas Nashe and the verbal arts. While the McLuhans were in England, World War II had broken out in Europe. For this reason, he obtained permission to complete and submit his dissertation from the United States, without having to return to Cambridge for an oral defence. In 1940, the McLuhans returned to Saint Louis University, where they started a family as he continued teaching. He was awarded a Doctor of Philosophy degree in December 1943. He next taught at Assumption College in Windsor, Ontario, from 1944 to 1946, then moved to Toronto in 1946 where he joined the faculty of St. Michael's College, a Catholic college of the University of Toronto, where Hugh Kenner would be one of his students. Canadian economist and communications scholar Harold Innis was a university colleague who had a strong influence on his work. McLuhan wrote in 1964: "I am pleased to think of my own book The Gutenberg Galaxy as a footnote to the observations of Innis on the subject of the psychic and social consequences, first of writing then of printing." Later career and reputation In the early 1950s, McLuhan began the Communication and Culture seminars at the University of Toronto, funded by the Ford Foundation. As his reputation grew, he received a growing number of offers from other universities. During this period, he published his first major work, The Mechanical Bride (1951), in which he examines the effect of advertising on society and culture. Throughout the 1950s, he and Edmund Carpenter also produced an important academic journal called Explorations. McLuhan and Carpenter have been characterized as the Toronto School of communication theory, together with Harold Innis, Eric A. Havelock, and Northrop Frye. During this time, McLuhan supervised the doctoral thesis of modernist writer Sheila Watson on the subject of Wyndham Lewis. Hoping to keep him from moving to another institute, the University of Toronto created the Centre for Culture and Technology (CCT) in 1963. From 1967 to 1968, McLuhan was named the Albert Schweitzer Chair in Humanities at Fordham University in the Bronx. While at Fordham, he was diagnosed with a benign brain tumor, which was treated successfully. He returned to Toronto where he taught at the University of Toronto for the rest of his life and lived in Wychwood Park, a bucolic enclave on a hill overlooking the downtown where Anatol Rapoport was his neighbour. In 1970, he was made a Companion of the Order of Canada. In 1975, the University of Dallas hosted him from April to May, appointing him to the McDermott Chair. Marshall and Corinne McLuhan had six children: Eric, twins Mary and Teresa, Stephanie, Elizabeth, and Michael. The associated costs of a large family eventually drove him to advertising work and accepting frequent consulting and speaking engagements for large corporations, including IBM and AT&T. Woody Allen's Oscar-winning Annie Hall (1977) featured McLuhan in a cameo as himself. In the film, a pompous academic is arguing with Allen in a cinema queue when McLuhan suddenly appears and silences him, saying, "You know nothing of my work." This was one of McLuhan's most frequent statements to and about those who disagreed with him. Death In September 1979, McLuhan suffered a stroke which affected his ability to speak. The University of Toronto's School of Graduate Studies tried to close his research centre shortly thereafter, but was deterred by substantial protests, most notably by Woody Allen. McLuhan never fully recovered from the stroke and died in his sleep on 31 December 1980. He is buried at Holy Cross Cemetery in Thornhill, Ontario, Canada. Major works During his years at Saint Louis University (1937–1944), McLuhan worked concurrently on two projects: his doctoral dissertation and the manuscript that was eventually published in 1951 as a book, titled The Mechanical Bride: Folklore of Industrial Man, which included only a representative selection of the materials that McLuhan had prepared for it. McLuhan's 1942 Cambridge University doctoral dissertation surveys the history of the verbal arts (grammar, logic, and rhetoric—collectively known as the trivium) from the time of Cicero down to the time of Thomas Nashe. In his later publications, McLuhan at times uses the Latin concept of the trivium to outline an orderly and systematic picture of certain periods in the history of Western culture. McLuhan suggests that the Late Middle Ages, for instance, were characterized by the heavy emphasis on the formal study of logic. The key development that led to the Renaissance was not the rediscovery of ancient texts, but a shift in emphasis from the formal study of logic to rhetoric and grammar. Modern life is characterized by the re-emergence of grammar as its most salient feature—a trend McLuhan felt was exemplified by the New Criticism of Richards and Leavis. McLuhan also began the academic journal Explorations with anthropologist Edmund "Ted" Carpenter. In a letter to Walter Ong, dated 31 May 1953, McLuhan reports that he had received a two-year grant of $43,000 from the Ford Foundation to carry out a communication project at the University of Toronto involving faculty from different disciplines, which led to the creation of the journal. At a Fordham lecture in 1999, Tom Wolfe suggested that a major under-acknowledged influence on McLuhan's work is the Jesuit philosopher Pierre Teilhard de Chardin, whose ideas anticipated those of McLuhan, especially the evolution of the human mind into the "noosphere." In fact, McLuhan warns against outright dismissing or whole-heartedly accepting de Chardin's observations early on in his second published book The Gutenberg Galaxy: In his private life, McLuhan wrote to friends saying: "I am not a fan of Pierre Teilhard de Chardin. The idea that anything is better because it comes later is surely borrowed from pre-electronic technologies." Further, McLuhan noted to a Catholic collaborator: "The idea of a Cosmic thrust in one direction ... is surely one of the lamest semantic fallacies ever bred by the word 'evolution'.… That development should have any direction at all is inconceivable except to the highly literate community." Some of McLuhan's main ideas were influenced or prefigured by anthropologist like Edward Sapir and Claude Lévi-Strauss, arguably with a more complex historical and psychological analysis. The idea of the retribalization of Western society by the far-reaching techniques of communication, the view on the function of the artist in society, and the characterization of means of transportation, like the railroad and the airplane, as means of communication, are prefigured in Sapir's 1933 article on Communication in the Encyclopaedia of the Social Sciences, while the distinction between "hot" and "cool" media draws from Lévi-Strauss' distinction between hot and cold societies. The Mechanical Bride (1951) McLuhan's first book, The Mechanical Bride: Folklore of Industrial Man (1951), is a pioneering study in the field now known as popular culture. In the book, McLuhan turns his attention to analysing and commenting on numerous examples of persuasion in contemporary popular culture. This followed naturally from his earlier work as both dialectic and rhetoric in the classical trivium aimed at persuasion. At this point, his focus shifted dramatically, turning inward to study the influence of communication media independent of their content. His famous aphorism "the medium is the message" (elaborated in his Understanding Media: The Extensions of Man, 1964) calls attention to this intrinsic effect of communications media. His interest in the critical study of popular culture was influenced by the 1933 book Culture and Environment by F. R. Leavis and Denys Thompson, and the title The Mechanical Bride is derived from a piece by the Dadaist artist Marcel Duchamp. Like his later The Gutenberg Galaxy (1962), The Mechanical Bride is composed of a number of short essays that may be read in any order—what he styled the "mosaic approach" to writing a book. Each essay begins with a newspaper or magazine article, or an advertisement, followed by McLuhan's analysis thereof. The analyses bear on aesthetic considerations as well as on the implications behind the imagery and text. McLuhan chose these ads and articles not only to draw attention to their symbolism, as well as their implications for the corporate entities who created and disseminated them, but also to mull over what such advertising implies about the wider society at which it is aimed. Roland Barthes's essays 1957 Mythologies, echoes McLuhan's Mechanical Bride, as a series of exhibits of popular mass culture (like advertisements, newspaper articles and photographs) that are analyzed in a semiological way. The Gutenberg Galaxy (1962) Written in 1961 and first published by University of Toronto Press, The Gutenberg Galaxy: The Making of Typographic Man (1962) is a pioneering study in the fields of oral culture, print culture, cultural studies, and media ecology. Throughout the book, McLuhan efforts to reveal how communication technology (i.e., alphabetic writing, the printing press, and the electronic media) affects cognitive organization, which in turn has profound ramifications for social organization: [I]f a new technology extends one or more of our senses outside us into the social world, then new ratios among all of our senses will occur in that particular culture. It is comparable to what happens when a new note is added to a melody. And when the sense ratios alter in any culture then what had appeared lucid before may suddenly become opaque, and what had been vague or opaque will become translucent. Movable type McLuhan's episodic history takes the reader from pre-alphabetic, tribal humankind to the electronic age. According to McLuhan, the invention of movable type greatly accelerated, intensified, and ultimately enabled cultural and cognitive changes that had already been taking place since the invention and implementation of the alphabet, by which McLuhan means phonemic orthography. (McLuhan is careful to distinguish the phonetic alphabet from logographic or logogramic writing systems, such as Egyptian hieroglyphs or ideograms.) Print culture, ushered in by the advance in printing during the middle of the 15th century when the Gutenberg press was invented, brought about the cultural predominance of the visual over the aural/oral. Quoting (with approval) an observation on the nature of the printed word from William Ivins' Prints and Visual Communication, McLuhan remarks: In this passage [Ivins] not only notes the ingraining of lineal, sequential habits, but, even more important, points out the visual homogenizing of experience of print culture, and the relegation of auditory and other sensuous complexity to the background.…The technology and social effects of typography incline us to abstain from noting interplay and, as it were, "formal" causality, both in our inner and external lives. Print exists by virtue of the static separation of functions and fosters a mentality that gradually resists any but a separative and compartmentalizing or specialist outlook. The main concept of McLuhan's argument (later elaborated upon in The Medium Is the Massage) is that new technologies (such as alphabets, printing presses, and even speech) exert a gravitational effect on cognition, which in turn, affects social organization: print technology changes our perceptual habits—"visual homogenizing of experience"—which in turn affects social interactions—"fosters a mentality that gradually resists all but a…specialist outlook". According to McLuhan, this advance of print technology contributed to and made possible most of the salient trends in the modern period in the Western world: individualism, democracy, Protestantism, capitalism, and nationalism. For McLuhan, these trends all reverberate with print technology's principle of "segmentation of actions and functions and principle of visual quantification." Global village In the early 1960s, McLuhan wrote that the visual, individualistic print culture would soon be brought to an end by what he called "electronic interdependence" wherein electronic media replaces visual culture with aural/oral culture. In this new age, humankind would move from individualism and fragmentation to a collective identity, with a "tribal base." McLuhan's coinage for this new social organization is the global village. The term is sometimes described as having negative connotations in The Gutenberg Galaxy, but McLuhan was interested in exploring effects, not making value judgments: Instead of tending towards a vast Alexandrian library the world has become a computer, an electronic brain, exactly as an infantile piece of science fiction. And as our senses have gone outside us, Big Brother goes inside. So, unless aware of this dynamic, we shall at once move into a phase of panic terrors, exactly befitting a small world of tribal drums, total interdependence, and superimposed co-existence.… Terror is the normal state of any oral society, for in it everything affects everything all the time.…In our long striving to recover for the Western world a unity of sensibility and of thought and feeling we have no more been prepared to accept the tribal consequences of such unity than we were ready for the fragmentation of the human psyche by print culture. Key to McLuhan's argument is the idea that technology has no per se moral bent—it is a tool that profoundly shapes an individual's and, by extension, a society's self-conception and realization: Is it not obvious that there are always enough moral problems without also taking a moral stand on technological grounds?…Print is the extreme phase of alphabet culture that detribalizes or decollectivizes man in the first instance. Print raises the visual features of alphabet to highest intensity of definition. Thus print carries the individuating power of the phonetic alphabet much further than manuscript culture could ever do. Print is the technology of individualism. If men decided to modify this visual technology by an electric technology, individualism would also be modified. To raise a moral complaint about this is like cussing a buzz-saw for lopping off fingers. "But", someone says, "we didn't know it would happen." Yet even witlessness is not a moral issue. It is a problem, but not a moral problem; and it would be nice to clear away some of the moral fogs that surround our technologies. It would be good for morality. The moral valence of technology's effects on cognition is, for McLuhan, a matter of perspective. For instance, McLuhan contrasts the considerable alarm and revulsion that the growing quantity of books aroused in the latter 17th century with the modern concern for the "end of the book." If there can be no universal moral sentence passed on technology, McLuhan believes that "there can only be disaster arising from unawareness of the causalities and effects inherent in our technologies". Though the World Wide Web was invented almost 30 years after The Gutenberg Galaxy, and 10 years after his death, McLuhan prophesied the web technology seen today as early as 1962: The next medium, whatever it is—it may be the extension of consciousness—will include television as its content, not as its environment, and will transform television into an art form. A computer as a research and communication instrument could enhance retrieval, obsolesce mass library organization, retrieve the individual's encyclopedic function and flip into a private line to speedily tailored data of a saleable kind. Furthermore, McLuhan coined and certainly popularized the usage of the term surfing to refer to rapid, irregular, and multidirectional movement through a heterogeneous body of documents or knowledge, e.g., statements such as "Heidegger surf-boards along on the electronic wave as triumphantly as Descartes rode the mechanical wave." Paul Levinson's 1999 book Digital McLuhan explores the ways that McLuhan's work may be understood better through using the lens of the digital revolution. McLuhan frequently quoted Walter Ong's Ramus, Method, and the Decay of Dialogue (1958), which evidently had prompted McLuhan to write The Gutenberg Galaxy. Ong wrote a highly favorable review of this new book in America. However, Ong later tempered his praise, by describing McLuhan's The Gutenberg Galaxy as "a racy survey, indifferent to some scholarly detail, but uniquely valuable in suggesting the sweep and depth of the cultural and psychological changes entailed in the passage from illiteracy to print and beyond." McLuhan himself said of the book, "I'm not concerned to get any kudos out of [The Gutenberg Galaxy]. It seems to me a book that somebody should have written a century ago. I wish somebody else had written it. It will be a useful prelude to the rewrite of Understanding Media [the 1960 NAEB report] that I'm doing now." McLuhan's The Gutenberg Galaxy won Canada's highest literary award, the Governor-General's Award for Non-Fiction, in 1962. The chairman of the selection committee was McLuhan's colleague at the University of Toronto and oftentime intellectual sparring partner, Northrop Frye. Understanding Media (1964) McLuhan's most widely-known work, Understanding Media: The Extensions of Man (1964), is a seminal study in media theory. Dismayed by the way in which people approach and use new media such as television, McLuhan famously argues that in the modern world "we live mythically and integrally…but continue to think in the old, fragmented space and time patterns of the pre-electric age." McLuhan proposed that media themselves, not the content they carry, should be the focus of study—popularly quoted as "the medium is the message." McLuhan's insight was that a medium affects the society in which it plays a role not by the content delivered over the medium, but by the characteristics of the medium itself. McLuhan pointed to the light bulb as a clear demonstration of this concept. A light bulb does not have content in the way that a newspaper has articles or a television has programs, yet it is a medium that has a social effect; that is, a light bulb enables people to create spaces during nighttime that would otherwise be enveloped by darkness. He describes the light bulb as a medium without any content. McLuhan states that "a light bulb creates an environment by its mere presence." More controversially, he postulated that content had little effect on society—in other words, it did not matter if television broadcasts children's shows or violent programming, to illustrate one example—the effect of television on society would be identical. He noted that all media have characteristics that engage the viewer in different ways; for instance, a passage in a book could be reread at will, but a movie had to be screened again in its entirety to study any individual part of it. "Hot" and "cool" media In the first part of Understanding Media, McLuhan states that different media invite different degrees of participation on the part of a person who chooses to consume a medium. Using a terminology derived from French anthropologist Lévi-Strauss' distinction between hot and cold societies, McLuhan argues that a cool medium requires increased involvement due to decreased description, while a hot medium is the opposite, decreasing involvement and increasing description. In other words, a society that appears to be actively participating in the streaming of content but not considering the effects of the tool is not allowing an "extension of ourselves." A movie is thus said to be "high definition," demanding a viewer's attention, while a comic book to be "low definition," requiring much more conscious participation by the reader to extract value: "Any hot medium allows of less participation than a cool one, as a lecture makes for less participation than a seminar, and a book for less than a dialogue." Some media, such as movies, are hot—that is, they enhance one single sense, in this case vision, in such a manner that a person does not need to exert much effort to perceive a detailed moving image. Hot media usually, but not always, provide complete involvement with considerable stimulus. In contrast, "cool" print may also occupy visual space, using visual senses, but requires focus and comprehension to immerse its reader. Hot media creation favour analytical precision, quantitative analysis and sequential ordering, as they are usually sequential, linear, and logical. They emphasize one sense (for example, of sight or sound) over the others. For this reason hot media also include film (especially silent films), radio, the lecture, and photography. McLuhan contrasts hot media with cool—specifically, television [of the 1960s i.e. small black-and-white screens], which he claims requires more effort on the part of the viewer to determine meaning; and comics, which, due to their minimal presentation of visual detail, require a high degree of effort to fill in details that the cartoonist may have intended to portray. Cool media are usually, but not always, those that provide little involvement with substantial stimulus. They require more active participation on the part of the user, including the perception of abstract patterning and simultaneous comprehension of all parts. Therefore, in addition to television, cool media include the seminar and cartoons. McLuhan describes the term cool media as emerging from jazz and popular music used, in this context, to mean "detached." This concept appears to force media into binary categories. However, McLuhan's hot and cool exist on a continuum: they are more correctly measured on a scale than as dichotomous terms. Critiques of Understanding Media Some theorists have attacked McLuhan's definition and treatment of the word "medium" for being too simplistic. Umberto Eco, for instance, contends that McLuhan's medium conflates channels, codes, and messages under the overarching term of the medium, confusing the vehicle, internal code, and content of a given message in his framework. In Media Manifestos, Régis Debray also takes issue with McLuhan's envisioning of the medium. Like Eco, he is ill at ease with this reductionist approach, summarizing its ramifications as follows: The list of objections could be and has been lengthened indefinitely: confusing technology itself with its use of the media makes of the media an abstract, undifferentiated force and produces its image in an imaginary "public" for mass consumption; the magical naivete of supposed causalities turns the media into a catch-all and contagious "mana"; apocalyptic millenarianism invents the figure of a homo mass-mediaticus without ties to historical and social context, and so on. Furthermore, when Wired magazine interviewed him in 1995, Debray stated that he views McLuhan "more as a poet than a historian, a master of intellectual collage rather than a systematic analyst.… McLuhan overemphasizes the technology behind cultural change at the expense of the usage that the messages and codes make of that technology." Dwight Macdonald, in turn, reproached McLuhan for his focus on television and for his "aphoristic" style of prose, which he believes leaves Understanding Media filled with "contradictions, non-sequiturs, facts that are distorted and facts that are not facts, exaggerations, and chronic rhetorical vagueness." Additionally, Brian Winston's Misunderstanding Media, published in 1986, chides McLuhan for what he sees as his technologically deterministic stances. Raymond Williams furthers this point of contention, claiming: The work of McLuhan was a particular culmination of an aesthetic theory which became, negatively, a social theory ... It is an apparently sophisticated technological determinism which has the significant effect of indicating a social and cultural determinism.… For if the medium – whether print or television – is the cause, all other causes, all that men ordinarily see as history, are at once reduced to effects. David Carr states that there has been a long line of "academics who have made a career out of deconstructing McLuhan’s effort to define the modern media ecosystem", whether it be due to what they see as McLuhan's ignorance toward sociohistorical context or the style of his argument. While some critics have taken issue with McLuhan's writing style and mode of argument, McLuhan himself urged readers to think of his work as "probes" or "mosaics" offering a toolkit approach to thinking about the media. His eclectic writing style has also been praised for its postmodern sensibilities and suitability for virtual space. The Medium Is the Massage (1967) The Medium Is the Massage: An Inventory of Effects, published in 1967, was McLuhan's best seller, "eventually selling nearly a million copies worldwide." Initiated by Quentin Fiore, McLuhan adopted the term "massage" to denote the effect each medium has on the human sensorium, taking inventory of the "effects" of numerous media in terms of how they "massage" the sensorium. Fiore, at the time a prominent graphic designer and communications consultant, set about composing the visual illustration of these effects which were compiled by Jerome Agel. Near the beginning of the book, Fiore adopted a pattern in which an image demonstrating a media effect was presented with a textual synopsis on the facing page. The reader experiences a repeated shifting of analytic registers—from "reading" typographic print to "scanning" photographic facsimiles—reinforcing McLuhan's overarching argument in this book: namely, that each medium produces a different "massage" or "effect" on the human sensorium. In The Medium Is the Massage, McLuhan also rehashed the argument—which first appeared in the Prologue to 1962's The Gutenberg Galaxy—that all media are "extensions" of our human senses, bodies and minds. Finally, McLuhan described key points of change in how man has viewed the world and how these views were changed by the adoption of new media. "The technique of invention was the discovery of the nineteenth [century]", brought on by the adoption of fixed points of view and perspective by typography, while "[t]he technique of the suspended judgment is the discovery of the twentieth century," brought on by the bard abilities of radio, movies and television.The past went that-a-way. When faced with a totally new situation we tend always to attach ourselves to the objects, to the flavor of the most recent past. We look at the present through a rear-view mirror. We march backward into the future. Suburbia lives imaginatively in Bonanza-land.An audio recording version of McLuhan's famous work was made by Columbia Records. The recording consists of a pastiche of statements made by McLuhan interrupted by other speakers, including people speaking in various phonations and falsettos, discordant sounds and 1960s incidental music in what could be considered a deliberate attempt to translate the disconnected images seen on TV into an audio format, resulting in the prevention of a connected stream of conscious thought. Various audio recording techniques and statements are used to illustrate the relationship between spoken, literary speech and the characteristics of electronic audio media. McLuhan biographer Philip Marchand called the recording "the 1967 equivalent of a McLuhan video.""I wouldn't be seen dead with a living work of art."—'Old man' speaking "Drop this jiggery-pokery and talk straight turkey."—'Middle aged man' speaking War and Peace in the Global Village (1968) In War and Peace in the Global Village, McLuhan used James Joyce's Finnegans Wake, an inspiration for this study of war throughout history, as an indicator as to how war may be conducted in the future. Joyce's Wake is claimed to be a gigantic cryptogram which reveals a cyclic pattern for the whole history of man through its Ten Thunders. Each "thunder" below is a 100-character portmanteau of other words to create a statement he likens to an effect that each technology has on the society into which it is introduced. In order to glean the most understanding out of each, the reader must break the portmanteau into separate words (and many of these are themselves portmanteaus of words taken from multiple languages other than English) and speak them aloud for the spoken effect of each word. There is much dispute over what each portmanteau truly denotes. McLuhan claims that the ten thunders in Wake represent different stages in the history of man: Thunder 1: Paleolithic to Neolithic. Speech. Split of East/West. From herding to harnessing animals. Thunder 2: Clothing as weaponry. Enclosure of private parts. First social aggression. Thunder 3: Specialism. Centralism via wheel, transport, cities: civil life. Thunder 4: Markets and truck gardens. Patterns of nature submitted to greed and power. Thunder 5: Printing. Distortion and translation of human patterns and postures and pastors. Thunder 6: Industrial Revolution. Extreme development of print process and individualism. Thunder 7: Tribal man again. All characters end up separate, private man. Return of choric. Thunder 8: Movies. Pop art, pop Kulch via tribal radio. Wedding of sight and sound. Thunder 9: Car and Plane. Both centralizing and decentralizing at once create cities in crisis. Speed and death. Thunder 10: Television. Back to tribal involvement in tribal mood-mud. The last thunder is a turbulent, muddy wake, and murk of non-visual, tactile man. From Cliché to Archetype (1970) Collaborating with Canadian poet Wilfred Watson in From Cliché to Archetype (1970), McLuhan approaches the various implications of the verbal cliché and of the archetype. One major facet in McLuhan's overall framework introduced in this book that is seldom noticed is the provision of a new term that actually succeeds the global village: the global theater. In McLuhan's terms, a cliché is a "normal" action, phrase, etc. which becomes so often used that we are "anesthetized" to its effects. McLuhan provides the example of Eugène Ionesco's play The Bald Soprano, whose dialogue consists entirely of phrases Ionesco pulled from an Assimil language book: "Ionesco originally put all these idiomatic English clichés into literary French which presented the English in the most absurd aspect possible." McLuhan's archetype "is a quoted extension, medium, technology, or environment." Environment would also include the kinds of "awareness" and cognitive shifts brought upon people by it, not totally unlike the psychological context Carl Jung described. McLuhan also posits that there is a factor of interplay between the cliché and the archetype, or a "doubleness:" Another theme of the Wake [Finnegans Wake] that helps in the understanding of the paradoxical shift from cliché to archetype is 'past time are pastimes.' The dominant technologies of one age become the games and pastimes of a later age. In the 20th century, the number of 'past times' that are simultaneously available is so vast as to create cultural anarchy. When all the cultures of the world are simultaneously present, the work of the artist in the elucidation of form takes on new scope and new urgency. Most men are pushed into the artist's role. The artist cannot dispense with the principle of 'doubleness' or 'interplay' because this type of hendiadys dialogue is essential to the very structure of consciousness, awareness, and autonomy. McLuhan relates the cliché-to-archetype process to the Theater of the Absurd: Pascal, in the seventeenth century, tells us that the heart has many reasons of which the head knows nothing. The Theater of the Absurd is essentially a communicating to the head of some of the silent languages of the heart which in two or three hundred years it has tried to forget all about. In the seventeenth century world the languages of the heart were pushed down into the unconscious by the dominant print cliché. The "languages of the heart," or what McLuhan would otherwise define as oral culture, were thus made archetype by means of the printing press, and turned into cliché. The satellite medium, McLuhan states, encloses the Earth in a man-made environment, which "ends 'Nature' and turns the globe into a repertory theater to be programmed." All previous environments (book, newspaper, radio, etc.) and their artifacts are retrieved under these conditions ("past times are pastimes"). McLuhan thereby meshes this into the term global theater. It serves as an update to his older concept of the global village, which, in its own definitions, can be said to be subsumed into the overall condition described by that of the global theater. The Global Village (1989) In his posthumous book, The Global Village: Transformations in World Life and Media in the 21st Century (1989), McLuhan, collaborating with Bruce R. Powers, provides a strong conceptual framework for understanding the cultural implications of the technological advances associated with the rise of a worldwide electronic network. This is a major work of McLuhan's as it contains the most extensive elaboration of his concept of acoustic space, and provides a critique of standard 20th-century communication models such as the Shannon–Weaver model. McLuhan distinguishes between the existing worldview of visual space—a linear, quantitative, classically geometric model—and that of acoustic space—a holistic, qualitative order with an intricate, paradoxical topology: "Acoustic Space has the basic character of a sphere whose focus or center is simultaneously everywhere and whose margin is nowhere." The transition from visual to acoustic space was not automatic with the advent of the global network, but would have to be a conscious project. The "universal environment of simultaneous electronic flow" inherently favors right-brain Acoustic Space, yet we are held back by habits of adhering to a fixed point of view. There are no boundaries to sound. We hear from all directions at once. Yet Acoustic and Visual Space are, in fact, inseparable. The resonant interval is the invisible borderline between Visual and Acoustic Space. This is like the television camera that the Apollo 8 astronauts focused on the Earth after they had orbited the moon. McLuhan illustrates how it feels to exist within acoustic space by quoting from the autobiography of Jacques Lusseyran, And There Was Light. Lusseyran lost his eyesight in a violent accident as a child, and the autobiography describes how a reordering of his sensory life and perception followed:When I came upon the myth of objectivity in certain modern thinkers, it made me angry. So there was only one world for these people, the same for everyone. And all the other worlds were to be counted as illusions left over from the past. Or why not call them by their name - hallucinations? I had learned to my cost how wrong they were. From my own experience I knew very well that it was enough to take from a man a memory here, an association there, to deprive him of hearing or sight, for the world to undergo immediate transformation, and for another world, entirely different, but entirely coherent, to be born. Another world? Not really. The same world, rather, but seen from a different angle, and counted in entirely new measures. When this happened all the hierarchies they called objective were turned upside down, scattered to the four winds, not even theories but like whims.Reading, writing, and hierarchical ordering are associated with the left brain and visual space, as are the linear concept of time and phonetic literacy. The left brain is the locus of analysis, classification, and rationality. The right brain and acoustic space are the locus of the spatial, tactile, and musical. "Comprehensive awareness" results when the two sides of the brain are in true balance. Visual Space is associated with the simplified worldview of Euclidean geometry, the intuitive three dimensions useful for the architecture of buildings and the surveying of land. It is linearly rational and has no grasp of the acoustic. Acoustic Space is multisensory. McLuhan writes about robotism in the context of Japanese Zen Buddhism and how it can offer us new ways of thinking about technology. The Western way of thinking about technology is too much related to the left hemisphere of our brain, which has a rational and linear focus. What he called robotism might better be called androidism in the wake of Blade Runner and the novels of Philip K. Dick. Robotism-androidism emerges from the further development of the right hemisphere of the brain, creativity and a new relationship to spacetime (most humans are still living in 17th-century classical Newtonian physics spacetime). Robots-androids will have much greater flexibility than humans have had until now, in both mind and body. Robots-androids will teach humanity this new flexibility. And this flexibility of androids (what McLuhan calls robotism) has a strong affinity with Japanese culture and life. McLuhan quotes from Ruth Benedict, The Chrysanthemum and the Sword, an anthropological study of Japanese culture published in 1946:Occidentals cannot easily credit the ability of the Japanese to swing from one behavior to another without psychic cost. Such extreme possibilities are not included in our experience. Yet in Japanese life the contradictions, as they seem to us, are as deeply based in their view of life as our uniformities are in ours.The ability to live in the present and instantly readjust. Beyond existing communication models "All Western scientific models of communication are—like the Shannon–Weaver model—linear, sequential, and logical as a reflection of the late medieval emphasis on the Greek notion of efficient causality." McLuhan and Powers criticize the Shannon-Weaver model of communication as emblematic of left-hemisphere bias and linearity, descended from a print-era perversion of Aristotle's notion of efficient causality. A third term of The Global Village that McLuhan and Powers develop at length is The Tetrad. McLuhan had begun development on the Tetrad as early as 1974. The tetrad an analogical, simultaneous, four-fold pattern of transformation. "At full maturity the tetrad reveals the metaphoric structure of the artifact as having two figures and two grounds in dynamic and analogical relationship to each other." Like the camera focused on the Earth by the Apollo 8 astronauts, the tetrad reveals figure (Moon) and ground (Earth) simultaneously. The right-brain hemisphere thinking is the capability of being in many places at the same time. Electricity is acoustic. It is simultaneously everywhere. The Tetrad, with its fourfold Möbius topological structure of enhancement, reversal, retrieval and obsolescence, is mobilized by McLuhan and Powers to illuminate the media or technological inventions of cash money, the compass, the computer, the database, the satellite, and the global media network. Key concepts Tetrad of media effects In Laws of Media (1988), published posthumously by his son Eric, McLuhan summarized his ideas about media in a concise tetrad of media effects. The tetrad is a means of examining the effects on society of any technology (i.e., any medium) by dividing its effects into four categories and displaying them simultaneously. McLuhan designed the tetrad as a pedagogical tool, phrasing his laws as questions with which to consider any medium: What does the medium enhance? What does the medium make obsolete? What does the medium retrieve that had been obsolesced earlier? What does the medium flip into when pushed to extremes? The laws of the tetrad exist simultaneously, not successively or chronologically, and allow the questioner to explore the "grammar and syntax" of the "language" of media. McLuhan departs from his mentor Harold Innis in suggesting that a medium "overheats," or reverses into an opposing form, when taken to its extreme. Visually, a tetrad can be depicted as four diamonds forming an X, with the name of a medium in the centre. The two diamonds on the left of a tetrad are the Enhancement and Retrieval qualities of the medium, both Figure qualities. The two diamonds on the right of a tetrad are the Obsolescence and Reversal qualities, both Ground qualities. Using the example of radio: Enhancement (figure): What the medium amplifies or intensifies. Radio amplifies news and music via sound. Obsolescence (ground): What the medium drives out of prominence. Radio reduces the importance of print and the visual. Retrieval (figure): What the medium recovers which was previously lost. Radio returns the spoken word to the forefront. Reversal (ground): What the medium does when pushed to its limits. Acoustic radio flips into audio-visual TV. Figure and ground McLuhan adapted the Gestalt psychology idea of a figure and a ground, which underpins the meaning of "the medium is the message." He used this concept to explain how a form of communications technology, the medium, or figure, necessarily operates through its context, or ground. McLuhan believed that in order to grasp fully the effect of a new technology, one must examine figure (medium) and ground (context) together, since neither is completely intelligible without the other. McLuhan argued that we must study media in their historical context, particularly in relation to the technologies that preceded them. The present environment, itself made up of the effects of previous technologies, gives rise to new technologies, which, in their turn, further affect society and individuals. All technologies have embedded within them their own assumptions about time and space. The message which the medium conveys can only be understood if the medium and the environment in which the medium is used—and which, simultaneously, it effectively creates—are analysed together. He believed that an examination of the figure-ground relationship can offer a critical commentary on culture and society. Opposition between optic and haptic perception In McLuhan's (and Harley Parker's) work, electric media has an affinity with haptic and hearing perception, while mechanical media have an affinity with visual perception. This opposition between optic and haptic, had been previously formulated by art historians Alois Riegl, in his 1901 Late Roman art industry, and then Erwin Panofsky (in his Perspective as Symbolic Form). However, McLuhan's comments are more aware of the contingent cultural context in which for instance linear perspective arose, while Panofsky's ones are more teleological. Also Walter Benjamin, in his The Work of Art in the Age of Mechanical Reproduction (1935), observed how in the scenario of perceptions of modern Western culture, from about the 19th century, has begun a shift from the optic towards the haptic. This shift is one of the main recurring topics in McLuhan work, which McLuhan attributes to the advent of the electronic era. Legacy After the publication of Understanding Media, McLuhan received an astonishing amount of publicity, making him perhaps the most publicized English teacher in the twentieth century and arguably the most controversial. This publicity began with the work of two California advertising executives, Howard Gossage and Gerald Feigen who used personal funds to fund their practice of "genius scouting". Much enamoured with McLuhan's work, Feigen and Gossage arranged for McLuhan to meet with editors of several major New York magazines in May 1965 at the Lombardy Hotel in New York. Philip Marchand reports that, as a direct consequence of these meetings, McLuhan was offered the use of an office in the headquarters of both Time and Newsweek, any time he needed it. In August 1965, Feigen and Gossage held what they called a "McLuhan festival" in the offices of Gossage's advertising agency in San Francisco. During this "festival", McLuhan met with advertising executives, members of the mayor's office, and editors from the San Francisco Chronicle and Ramparts magazine. More significant was the presence at the festival of Tom Wolfe, who wrote about McLuhan in a subsequent article, "What If He Is Right?", published in New York magazine and Wolfe's own The Pump House Gang. According to Feigen and Gossage, their work had only a moderate effect on McLuhan's eventual celebrity: they claimed that their work only "probably speeded up the recognition of [McLuhan's] genius by about six months." In any case, McLuhan soon became a fixture of media discourse. Newsweek magazine did a cover story on him; articles appeared in Life, Harper's, Fortune, Esquire, and others. Cartoons about him appeared in The New Yorker. In 1969, Playboy magazine published a lengthy interview with him. In a running gag on the popular sketch comedy Rowan & Martin's Laugh-In, the "poet" Henry Gibson would randomly say, "Marshall McLuhan, what are you doin'?" McLuhan was credited with coining the phrase Turn on, tune in, drop out by its popularizer, Timothy Leary, in the 1960s. In a 1988 interview with Neil Strauss, Leary stated that the slogan was "given to him" by McLuhan during a lunch in New York City. Leary said McLuhan "was very much interested in ideas and marketing, and he started singing something like, 'Psychedelics hit the spot / Five hundred micrograms, that’s a lot,' to the tune of a Pepsi commercial. Then he started going, 'Tune in, turn on, and drop out. During his lifetime and afterward, McLuhan heavily influenced cultural critics, thinkers, and media theorists such as Neil Postman, Jean Baudrillard, Timothy Leary, Terence McKenna, William Irwin Thompson, Paul Levinson, Douglas Rushkoff, Jaron Lanier, Hugh Kenner, and John David Ebert, as well as political leaders such as Pierre Elliott Trudeau and Jerry Brown. Andy Warhol was paraphrasing McLuhan with his now famous "15 minutes of fame" quote. When asked in the 1970s for a way to sedate violences in Angola, he suggested a massive spread of TV devices. Douglas Coupland, argued that McLuhan "was conservative, socially, but he never let politics enter his writing or his teaching". The character "Brian O'Blivion" in David Cronenberg's 1983 film Videodrome is a "media oracle" based on McLuhan. In 1991, McLuhan was named as the "patron saint" of Wired magazine and a quote of his appeared on the masthead for the first ten years of its publication. He is mentioned by name in a Peter Gabriel–penned lyric in the song "Broadway Melody of 1974". This song appears on the concept album The Lamb Lies Down on Broadway, from progressive rock band Genesis. The lyric is: "Marshall McLuhan, casual viewin' head buried in the sand." McLuhan is also jokingly referred to during an episode of The Sopranos entitled "House Arrest". Despite his death in 1980, someone claiming to be McLuhan was posting on a Wired mailing list in 1996. The information this individual provided convinced one writer for Wired that "if the poster was not McLuhan himself, it was a bot programmed with an eerie command of McLuhan's life and inimitable perspective." A new centre known as the McLuhan Program in Culture and Technology, formed soon after his death in 1980, was the successor to McLuhan's Centre for Culture and Technology at the University of Toronto. Since 1994, it has been part of the University of Toronto Faculty of Information and in 2008 the McLuhan Program in Culture and Technology incorporated in the Coach House Institute. The first director was literacy scholar and OISE Professor David R. Olsen. From 1983 until 2008, the McLuhan Program was under the direction of Derrick de Kerckhove who was McLuhan's student and translator. From 2008 through 2015 Professor Dominique Scheffel-Dunand of York University served Director of the Program. In 2011 at the time of his centenary the Coach House Institute established a Marshall McLuhan Centenary Fellowship program in his honour, and each year appoints up to four fellows for a maximum of two years. In May 2016 the Coach House Institute was renamed the McLuhan Centre for Culture and Technology; its Interim Director was Seamus Ross (2015–16). Sarah Sharma, an Associate Professor of Media Theory from the Institute of Communication, Culture, Information and Technology (ICCIT) and the Faculty of Information (St. George), began a five-year term as director of the Coach House (2017- ). Professor Sharma's research and teaching focuses on feminist approaches to technology, including issues related to temporality and media. Professor Sharma's thematic for the 2017-2018 Monday Night Seminars at the McLuhan Centre is MsUnderstanding Media which extends and introduces feminist approaches to technology to McLuhan's formulations of technology and culture. In Toronto, Marshall McLuhan Catholic Secondary School is named after him. Bibliography of major works This is a partial list of works cited in this article. 1951. The Mechanical Bride: Folklore of Industrial Man (1st ed.). New York: Vanguard Press. reissued by Gingko Press, 2002. . 1962. The Gutenberg Galaxy: The Making of Typographic Man. (1st ed.). Toronto: University of Toronto Press. reissued by Routledge & Kegan Paul. . 1964. Understanding Media: The Extensions of Man (1st ed.). New York: McGraw Hill. reissued by MIT Press, 1994, with introduction by Lewis H. Lapham; reissued by Gingko Press, 2003. . 1967. The Medium Is the Massage: An Inventory of Effects (1st ed.), with Quentin Fiore, produced by Jerome Agel. Random House. reissued by Gingko Press, 2001. . 1968. War and Peace in the Global Village (1st ed.), with design/layout by Quentin Fiore, produced by Jerome Agel. New York: Bantam. reissued by Gingko Press, 2001. . 1970. From Cliché to Archetype, with Wilfred Watson. New York: Viking. . 1988. Laws of Media, edited by Eric McLuhan. Toronto: University of Toronto Press. . 2016 The Future of the Library: From Electronic Media to Digital Media, edited by Robert K. Logan. Peter Lang. . See also Neuroplasticity Cortical remapping Social interface Notes References Footnotes Works cited Further reading External links 1911 births 1980 deaths 20th-century Canadian non-fiction writers 20th-century Canadian philosophers 20th-century essayists 20th-century historians Aesthetics Alumni of Trinity Hall, Cambridge Analytic philosophers Aphorists Canadian essayists Canadian expatriate academics in the United States Canadian futurologists Canadian literary critics Canadian male non-fiction writers Canadian Roman Catholics Canadian social commentators Catholic philosophers Communication theorists Companions of the Order of Canada Converts to Roman Catholicism from atheism or agnosticism Critical theorists Cultural critics Epistemologists Fordham University faculty Governor General's Award-winning non-fiction writers Historians of printing Lecturers Literacy and society theorists Literary critics of English Literary theorists Media studies Mass media theorists New Criticism North American cultural studies Persons of National Historic Significance (Canada) Philosophers of art Philosophers of culture Philosophers of education Philosophers of history Philosophers of literature Philosophers of mind Philosophers of science Philosophers of social science Philosophers of technology Philosophy academics Philosophy writers Popular culture studies Postmodernism Rhetoric theorists Roman Catholic writers Saint Louis University faculty Social critics Social philosophers Theorists on Western civilization Transdisciplinarity University of Manitoba alumni University of Toronto faculty World Wide Web Writers about activism and social change Writers about globalization Writers from Edmonton Writers from Winnipeg

19550

https://en.wikipedia.org/wiki/Multiple%20inheritance

Multiple inheritance

Multiple inheritance is a feature of some object-oriented computer programming languages in which an object or class can inherit features from more than one parent object or parent class. It is distinct from single inheritance, where an object or class may only inherit from one particular object or class. Multiple inheritance has been a controversial issue for many years, with opponents pointing to its increased complexity and ambiguity in situations such as the "diamond problem", where it may be ambiguous as to which parent class a particular feature is inherited from if more than one parent class implements said feature. This can be addressed in various ways, including using virtual inheritance. Alternate methods of object composition not based on inheritance such as mixins and traits have also been proposed to address the ambiguity. Details In object-oriented programming (OOP), inheritance describes a relationship between two classes in which one class (the child class) subclasses the parent class. The child inherits methods and attributes of the parent, allowing for shared functionality. For example, one might create a variable class Mammal with features such as eating, reproducing, etc.; then define a child class Cat that inherits those features without having to explicitly program them, while adding new features like chasing mice. Multiple inheritance allows programmers to use more than one totally orthogonal hierarchy simultaneously, such as allowing Cat to inherit from Cartoon character and Pet and Mammal and access features from within all of those classes. Implementations Languages that support multiple inheritance include: C++, Common Lisp (via Common Lisp Object System (CLOS)), EuLisp (via The EuLisp Object System TELOS), Curl, Dylan, Eiffel, Logtalk, Object REXX, Scala (via use of mixin classes), OCaml, Perl, POP-11, Python, R, Raku, and Tcl (built-in from 8.6 or via Incremental Tcl (Incr Tcl) in earlier versions). IBM System Object Model (SOM) runtime supports multiple inheritance, and any programming language targeting SOM can implement new SOM classes inherited from multiple bases. Some object-oriented languages, such as Swift, Java, Fortran since its 2003 revision, C#, and Ruby implement single inheritance, although protocols, or interfaces, provide some of the functionality of true multiple inheritance. PHP uses traits classes to inherit specific method implementations. Ruby uses modules to inherit multiple methods. The diamond problem The "diamond problem" (sometimes referred to as the "Deadly Diamond of Death") is an ambiguity that arises when two classes B and C inherit from A, and class D inherits from both B and C. If there is a method in A that B and C have overridden, and D does not override it, then which version of the method does D inherit: that of B, or that of C? For example, in the context of GUI software development, a class Button may inherit from both classes Rectangle (for appearance) and Clickable (for functionality/input handling), and classes Rectangle and Clickable both inherit from the Object class. Now if the equals method is called for a Button object and there is no such method in the Button class but there is an overridden equals method in Rectangle or Clickable (or both), which method should be eventually called? It is called the "diamond problem" because of the shape of the class inheritance diagram in this situation. In this case, class A is at the top, both B and C separately beneath it, and D joins the two together at the bottom to form a diamond shape. Mitigation Languages have different ways of dealing with these problems of repeated inheritance. C++ by default follows each inheritance path separately, so a D object would actually contain two separate A objects, and uses of A's members have to be properly qualified. If the inheritance from A to B and the inheritance from A to C are both marked "virtual" (for example, "class B : virtual public A"), C++ takes special care to only create one A object, and uses of A's members work correctly. If virtual inheritance and nonvirtual inheritance are mixed, there is a single virtual A, and a nonvirtual A for each nonvirtual inheritance path to A. C++ requires stating explicitly which parent class the feature to be used is invoked from i.e. Worker::Human.Age. C++ does not support explicit repeated inheritance since there would be no way to qualify which superclass to use (i.e. having a class appear more than once in a single derivation list [class Dog : public Animal, Animal]). C++ also allows a single instance of the multiple class to be created via the virtual inheritance mechanism (i.e. Worker::Human and Musician::Human will reference the same object). Common Lisp CLOS attempts to provide both reasonable default behavior and the ability to override it. By default, to put it simply, the methods are sorted in D,B,C,A, when B is written before C in the class definition. The method with the most specific argument classes is chosen (D>(B,C)>A) ; then in the order in which parent classes are named in the subclass definition (B>C). However, the programmer can override this, by giving a specific method resolution order or stating a rule for combining methods. This is called method combination, which may be fully controlled. The MOP (metaobject protocol) also provides means to modify the inheritance, dynamic dispatch, class instantiation, and other internal mechanisms without affecting the stability of the system. Curl allows only classes that are explicitly marked as shared to be inherited repeatedly. Shared classes must define a secondary constructor for each regular constructor in the class. The regular constructor is called the first time the state for the shared class is initialized through a subclass constructor, and the secondary constructor will be invoked for all other subclasses. In Eiffel, the ancestors' features are chosen explicitly with select and rename directives. This allows the features of the base class to be shared between its descendants or to give each of them a separate copy of the base class. Eiffel allows explicit joining or separation of features inherited from ancestor classes. Eiffel will automatically join features together, if they have the same name and implementation. The class writer has the option to rename the inherited features to separate them. Multiple inheritance is a frequent occurrence in Eiffel development; most of the effective classes in the widely used EiffelBase library of data structures and algorithms, for example, have two or more parents. Go prevents the diamond problem at compile time. If a structure D embeds two structures B and C which both have a method F(), thus satisfying an interface A, the compiler will complain about an "ambiguous selector" if D.F() is called, or if an instance of D is assigned to a variable of type A. B and C's methods can be called explicitly with D.B.F() or D.C.F(). Java 8 introduces default methods on interfaces. If A,B,C are interfaces, B,C can each provide a different implementation to an abstract method of A, causing the diamond problem. Either class D must reimplement the method (the body of which can simply forward the call to one of the super implementations), or the ambiguity will be rejected as a compile error. Prior to Java 8, Java was not subject to the Diamond problem risk, because it did not support multiple inheritance and interface default methods were not available. JavaFX Script in version 1.2 allows multiple inheritance through the use of mixins. In case of conflict, the compiler prohibits the direct usage of the ambiguous variable or function. Each inherited member can still be accessed by casting the object to the mixin of interest, e.g. (individual as Person).printInfo();. Kotlin allows multiple inheritance of Interfaces, however, in a Diamond problem scenario, the child class must override the method that causes the inheritance conflict and specify which parent class implementation should be used. eg super<ChosenParentInterface>.someMethod() Logtalk supports both interface and implementation multi-inheritance, allowing the declaration of method aliases that provide both renaming and access to methods that would be masked out by the default conflict resolution mechanism. In OCaml, parent classes are specified individually in the body of the class definition. Methods (and attributes) are inherited in the same order, with each newly inherited method overriding any existing methods. OCaml chooses the last matching definition of a class inheritance list to resolve which method implementation to use under ambiguities. To override the default behavior, one simply qualifies a method call with the desired class definition. Perl uses the list of classes to inherit from as an ordered list. The compiler uses the first method it finds by depth-first searching of the superclass list or using the C3 linearization of the class hierarchy. Various extensions provide alternative class composition schemes. The order of inheritance affects the class semantics. In the above ambiguity, class B and its ancestors would be checked before class C and its ancestors, so the method in A would be inherited through B. This is shared with Io and Picolisp. In Perl, this behavior can be overridden using the mro or other modules to use C3 linearization or other algorithms. Python has the same structure as Perl, but, unlike Perl, includes it in the syntax of the language. The order of inheritance affects the class semantics. Python had to deal with this upon the introduction of new-style classes, all of which have a common ancestor, object. Python creates a list of classes using the C3 linearization (or Method Resolution Order (MRO)) algorithm. That algorithm enforces two constraints: children precede their parents and if a class inherits from multiple classes, they are kept in the order specified in the tuple of base classes (however in this case, some classes high in the inheritance graph may precede classes lower in the graph). Thus, the method resolution order is: D, B, C, A. Ruby classes have exactly one parent but may also inherit from multiple modules; ruby class definitions are executed, and the (re)definition of a method obscures any previously existing definition at the time of execution. In the absence of runtime metaprogramming this has approximately the same semantics as rightmost depth first resolution. Scala allows multiple instantiation of traits, which allows for multiple inheritance by adding a distinction between the class hierarchy and the trait hierarchy. A class can only inherit from a single class, but can mix-in as many traits as desired. Scala resolves method names using a right-first depth-first search of extended 'traits', before eliminating all but the last occurrence of each module in the resulting list. So, the resolution order is: [D, C, A, B, A], which reduces down to [D, C, B, A]. Tcl allows multiple parent classes; the order of specification in the class declaration affects the name resolution for members using the C3 linearization algorithm. Languages that allow only single inheritance, where a class can only derive from one base class, do not have the diamond problem. The reason for this is that such languages have at most one implementation of any method at any level in the inheritance chain regardless of the repetition or placement of methods. Typically these languages allow classes to implement multiple protocols, called interfaces in Java. These protocols define methods but do not provide concrete implementations. This strategy has been used by ActionScript, C#, D, Java, Nemerle, Object Pascal, Objective-C, Smalltalk, Swift and PHP. All these languages allow classes to implement multiple protocols. Moreover, Ada, C#, Java, Object Pascal, Objective-C, Swift and PHP allow multiple-inheritance of interfaces (called protocols in Objective-C and Swift). Interfaces are like abstract base classes that specify method signatures without implementing any behaviour. ("Pure" interfaces such as the ones in Java up to version 7 do not permit any implementation or instance data in the interface.) Nevertheless, even when several interfaces declare the same method signature, as soon as that method is implemented (defined) anywhere in the inheritance chain, it overrides any implementation of that method in the chain above it (in its superclasses). Hence, at any given level in the inheritance chain, there can be at most one implementation of any method. Thus, single-inheritance method implementation does not exhibit the Diamond Problem even with multiple-inheritance of interfaces. With the introduction of default implementation for interfaces in Java 8 and C# 8, it is still possible to generate a Diamond Problem, although this will only appear as a compile-time error. See also Directed graph Nixon diamond References Further reading Stroustrup, Bjarne (1999). Multiple Inheritance for C++. Proceedings of the Spring 1987 European Unix Users Group Conference Object-Oriented Software Construction'', Second Edition, by Bertrand Meyer, Prentice Hall, 1997, External links Tutorial on inheritance usage in Eiffel Tutorial on effective use of multiple inheritance in Python An overview of inheritance in Ocaml Class (computer programming)

19552

https://en.wikipedia.org/wiki/Media%20studies

Media studies

Media studies is a discipline and field of study that deals with the content, history, and effects of various media; in particular, the mass media. Media Studies may draw on traditions from both the social sciences and the humanities, but mostly from its core disciplines of mass communication, communication, communication sciences, and communication studies. Researchers may also develop and employ theories and methods from disciplines including cultural studies, rhetoric (including digital rhetoric), philosophy, literary theory, psychology, political science, political economy, economics, sociology, anthropology, social theory, art history and criticism, film theory, and information theory. Origin The first Media Studies M.A. program in the U.S. was introduced by John Culkin at The New School in 1975, which has since graduated more than 2,000 students. Culkin was responsible for bringing Marshall McLuhan to Fordham in 1968 and subsequently founded the Center for Understanding Media, which became the New School program. Australia Media is studied as a broad subject in most states in Australia. Media studies in Australia was first developed as an area of study in Victorian universities in the early 1960s, and in secondary schools in the mid 1960s. Today, almost all Australian universities teach media studies. According to the Government of Australia's "Excellence in Research for Australia" report, the leading universities in the country for media studies (which were ranked well above World standards by the report's scoring methodology) are Monash University, QUT, RMIT, University of Melbourne, University of Queensland and UTS. In secondary schools, an early film studies course first began being taught as part of the Victorian junior secondary curriculum during the mid 1960s. And, by the early 1970s, an expanded media studies course was being taught. The course became part of the senior secondary curriculum (later known as the Victorian Certificate of Education or "VCE") in the 1980s. It has since become, and continues to be, a strong component of the VCE. Notable figures in the development of the Victorian secondary school curriculum were the long time Rusden College media teacher Peter Greenaway (not the British film director), Trevor Barr (who authored one of the first media text books Reflections of Reality) and later John Murray (who authored The Box in the Corner, In Focus, and 10 Lessons in Film Appreciation). Today, Australian states and territories that teach media studies at a secondary level are Australian Capital Territory, Northern Territory, Queensland, South Australia, Victoria and Western Australia. Media studies does not appear to be taught in the state of New South Wales at a secondary level. In Victoria, the VCE media studies course is structured as: Unit 1 - Representation, Technologies of Representation, and New Media; Unit 2 - Media Production, Australian Media Organisations; Unit 3 - Narrative Texts, Production Planning; and Unit 4 - Media Process, Social Values, and Media Influence. Media studies also form a major part of the primary and junior secondary curriculum, and includes areas such as photography, print media and television. Victoria also hosts the peak media teaching body known as ATOM which publishes Metro and Screen Education magazines. Canada In Canada, media studies and communication studies are incorporated in the same departments and cover a wide range of approaches (from critical theory to organizations to research-creation and political economy, for example). Over time, research developed to employ theories and methods from cultural studies, philosophy, political economy, gender, sexuality and race theory, management, rhetoric, film theory, sociology, and anthropology. Harold Innis and Marshall McLuhan are famous Canadian scholars for their contributions to the fields of media ecology and political economy in the 20th century. They were both important members of the Toronto School of Communication at the time. More recently, the School of Montreal and its founder James R. Taylor significantly contributed to the field of organizational communication by focusing on the ontological processes of organizations. Carleton University and the University of Western Ontario, 1945 and 1946 prospectively, created Journalism specific programs or schools. A Journalism specific program was also created at Ryerson in 1950. The first communication programs in Canada were started at Ryerson and Concordia Universities. The Radio and Television Arts program at Ryerson were started in the 1950s, while the Film, Media Studies/Media Arts, and Photography programs also originated from programs started in the 1950s. The Communication studies department at Concordia was created in the late 1960s. Ryerson's Radio and Television, Film, Media and Photography programs were renowned by the mid 1970s, and its programs were being copied by other colleges and universities nationally and Internationally. Today, most universities offer undergraduate degrees in Media and Communication Studies, and many Canadian scholars actively contribute to the field, among which: Brian Massumi (philosophy, cultural studies), Kim Sawchuk (cultural studies, feminist, ageing studies), Carrie Rentschler (feminist theory), and François Cooren (organizational communication). In his book “Understanding Media, The Extensions of Man”, media theorist Marshall McLuhan suggested that "the medium is the message", and that all human artefacts and technologies are media. His book introduced the usage of terms such as “media” into our language along with other precepts, among them “global village” and “Age of Information”. A medium is anything that mediates our interaction with the world or other humans. Given this perspective, media study is not restricted to just media of communications but all forms of technology. Media and their users form an ecosystem and the study of this ecosystem is known as media ecology. McLuhan says that the “technique of fragmentation that is the essence of machine technology” shaped the restructuring of human work and association and “the essence of automation technology is the opposite”. He uses an example of the electric light to make this connection and to explain “the medium is the message”. The electric light is pure information and it is a medium without a message unless it is used to spell out some verbal ad or a name. The characteristic of all media means the “content” of any medium is always another medium. For example, the content of writing is speech, the written word is the content of print, and print is the content of the telegraph. The change that the medium or technology introduces into human affairs is the “message”. If the electric light is used for Friday night football or to light up your desk you could argue that the content of the electric light is these activities. The fact that it is the medium that shapes and controls the form of human association and action makes it the message. The electric light is over looked as a communication medium because it doesn't have any content. It is not until the electric light is used to spell a brand name that it is recognized as medium. Similar to radio and other mass media electric light eliminates time and space factors in human association creating deeper involvement. McLuhan compared the “content” to a juicy piece of meat being carried by a burglar to distract the “watchdog of the mind”. The effect of the medium is made strong because it is given another media “content”. The content of a movie is a book, play or maybe even an opera. McLuhan talks about media being “hot” or “cold” and touches on the principle that distinguishes them from one another. A hot medium (i.e., radio or Movie) extends a single sense in “high definition”. High definition means the state of being well filled with data. A cool medium (i.e., Telephone and TV) is considered “low definition” because a small amount of data/information is given and has to be filled in. Hot media are low in participation and cool media are high in participation. Hot media are low in participation because it is giving most of the information and it excludes. Cool media are high in participation because it gives you information but you have to fill in the blanks and it is inclusive. He used lecturing as an example for hot media and seminars as an example for low media. If you use a hot medium in a hot or cool culture makes a difference. China There are two universities in China that specialize in media studies. Communication University of China, formerly known as the Beijing Broadcasting Institute, that dates back to 1954. CUC has 15,307 full-time students, including 9264 undergraduates, 3512 candidates for doctor and master's degrees and 16,780 students in programs of continuing education. The other university known for media studies in China is Zhejiang University of Media and Communications (ZUMC) which has campuses in Hangzhou and Tongxiang. Almost 10,000 full-time students are currently studying in over 50 programs at the 13 Colleges and Schools of ZUMC. Both institutions have produced some of China's brightest broadcasting talents for television as well as leading journalists at magazines and newspapers. Czech Republic There is no university specialized on journalism and media studies, but there are seven public universities which have a department of media studies. Three biggest are based in Prague (Charles University), Brno (Masaryk University) and Olomouc (Palacký University). There are another nine private universities and colleges which has media studies department. France One prominent French media critic is the sociologist Pierre Bourdieu who wrote among other books On Television (New Press, 1999). Bourdieu's analysis is that television provides far less autonomy, or freedom, than we think. In his view, the market (which implies the hunt for higher advertising revenue) not only imposes uniformity and banality, but also a form of invisible censorship. When, for example, television producers "pre-interview" participants in news and public affairs programs, to ensure that they will speak in simple, attention-grabbing terms, and when the search for viewers leads to an emphasis on the sensational and the spectacular, people with complex or nuanced views are not allowed a hearing. Germany In Germany two main branches of media theory or media studies can be identified. The first major branch of media theory has its roots in the humanities and cultural studies, such as film studies ("Filmwissenschaft"), theater studies ("Theaterwissenschaft") and German language and literature studies ("Germanistik") as well as Comparative Literature Studies ("Komparatistik"). This branch has broadened out substantially since the 1990s. And it is on this initial basis that a culturally-based media studies (often emphasised more recently through the disciplinary title Medienkulturwissenschaft) in Germany has primarily developed and established itself. This plurality of perspectives make it difficult to single out one particular site where this branch of Medienwissenschaft originated. While the Frankfurt-based theatre scholar, Hans-Theis Lehmanns term "post dramatic theater" points directly to the increased blending of co-presence and mediatized material in the German theater (and elsewhere) since the 1970s, the field of theater studies from the 1990s onwards at the Freie Universität Berlin, led in particular by Erika Fischer-Lichte, showed particular interest in the ways in which theatricality influenced notions of performativity in aesthetic events. Within the field of Film Studies, again, both Frankfurt and Berlin were dominant in the development of new perspectives on moving image media. Heide Schlüpman in Frankfurt and Gertrud Koch, first in Bochum then in Berlin, were key theorists contributing to an aesthetic theory of the cinema (Schlüpmann) as dispositif and the moving image as medium, particularly in the context of illusion (Koch). Many scholars who became known as media scholars in Germany originally were scholars of German, such as Friedrich Kittler, who taught at the Humboldt Universität zu Berlin, completed both his dissertation and habilitation in the context of Germanistik. One of the early publications in this new direction is a volume edited by Helmut Kreuzer, Literature Studies - Media Studies (Literaturwissenschaft – Medienwissenschaft), which summarizes the presentations given at the Düsseldorfer Germanistentag 1976. The second branch of media studies in Germany is comparable to Communication Studies. Pioneered by Elisabeth Noelle-Neumann in the 1940s, this branch studies mass media, its institutions and its effects on society and individuals. The German Institute for Media and Communication Policy, founded in 2005 by media scholar Lutz Hachmeister, is one of the few independent research institutions that is dedicated to issues surrounding media and communications policies. The term Wissenschaft cannot be translated straightforwardly as studies, as it calls to mind both scientific methods and the humanities. Accordingly, German media theory combines philosophy, psychoanalysis, history, and scientific studies with media-specific research. Medienwissenschaften is currently one of the most popular courses of study at universities in Germany, with many applicants mistakenly assuming that studying it will automatically lead to a career in TV or other media. This has led to widespread disillusionment, with students blaming the universities for offering highly theoretical course content. The universities maintain that practical journalistic training is not the aim of the academic studies they offer. India Media Studies is a fast growing academic field in India, with several dedicated departments and research institutes. With a view to making the best use of communication facilities for information, publicity and development, the Government of India in 1962-63 sought the advice of the Ford Foundation/UNESCO team of internationally known mass communication specialists who recommended the setting up of a national institute for training, teaching and research in mass communication. Anna University was the first university to start Master of Science in Electronic Media programmes. It offers a five-year integrated programme and a two-year programme in Electronic Media. The Department of Media Sciences was started in January 2002, branching off from the UGC's Educational Multimedia Research Centre (EMMRC). National Institute of Open Schooling, the world's largest open schooling system, offers Mass Communication as a subject of studies at senior secondary level. All the major universities in the country have mass media and journalism studies departments. Centre for the Study of Developing Societies (CSDS), Delhi has media studies as one of their major emphasis. Netherlands In the Netherlands, media studies are split into several academic courses such as (applied) communication sciences, communication- and information sciences, communication and media, media and culture or theater, film and television sciences. Whereas communication sciences focuses on the way people communicate, be it mediated or unmediated, media studies tends to narrow the communication down to just mediated communication. However, it would be a mistake to consider media studies a specialism of communication sciences, since media make up just a small portion of the overall course. Indeed, both studies tend to borrow elements from one another. Communication sciences (or a derivative thereof) can be studied at Erasmus University Rotterdam, Radboud University, Tilburg University, University of Amsterdam, University of Groningen, University of Twente, Roosevelt Academy, University of Utrecht, VU University Amsterdam and Wageningen University and Research Centre. Media studies (or something similar) can be studied at the University of Amsterdam, VU University Amsterdam, Erasmus University Rotterdam, University of Groningen and the University of Utrecht. Eight Dutch universities collaborate in the overarching Netherlands Research school for Media Studies (RMeS), which acts as a platform for graduate students in media research. New Zealand Media studies in New Zealand is healthy, especially due to renewed activity in the country's film industry and is taught at both secondary and tertiary education institutes. Media studies in NZ can be regarded as a singular success, with the subject well-established in the tertiary sector (such as Screen and Media Studies at the University of Waikato; Media Studies, Victoria University of Wellington; Film, Television and Media Studies, University of Auckland; Media Studies, Massey University; Communication Studies, University of Otago). Different courses can offer students a range of specialisations- such as cultural studies, media theory and analysis, practical film-making, journalism and communications studies. But what makes the case of New Zealand particularly significant in respect of Media Studies is that for more than a decade it has been a nationally mandated and very popular subject in secondary (high) schools, taught across three years in a very structured and developmental fashion, with Scholarship in Media Studies available for academically gifted students. According to the New Zealand Ministry of Education Subject Enrolment figures 229 New Zealand schools offered Media Studies as a subject in 2016, representing more than 14,000 students. Pakistan In Pakistan, media studies programs are widely offered. University of the Punjab Lahore is the oldest department. Later on University of Karachi, Peshawar University, BZU Multaan, Islamia University Bahwalpur also started communication programs. Now, newly established universities are also offering mass communication program in which University of Gujrat emerged as a leading department. Bahria University which is established by Pakistan Navy is also offering BS in media studies. Switzerland In Switzerland, media and communication studies are offered by several higher education institutions including the International University in Geneva, Zurich University of Applied Sciences, University of Lugano, University of Fribourg and others. United Kingdom In the United Kingdom, media studies developed in the 1960s from the academic study of English, and from literary criticism more broadly. The key date, according to Andrew Crisell, is 1959: When Joseph Trenaman left the BBC's Further Education Unit to become the first holder of the Granada Research Fellowship in Television at Leeds University. Soon after in 1966, the Centre for Mass Communication Research was founded at Leicester University, and degree programmes in media studies began to sprout at polytechnics and other universities during the 1970s and 1980s. James Halloran at the University of Leicester is credited with much influence in the development of media studies and communication studies, as the head of the university's Centre for Mass Communication Research, and founder of the International Association for Media and Communication Research. Media Studies is now taught all over the UK. It is taught at Key Stages 1– 3, Entry Level, GCSE and at A level and the Scottish Qualifications Authority offers formal qualifications at a number of different levels. It is offered through a large area of exam boards including AQA and WJEC. Much research in the field of news media studies has been led by the Reuters Institute for the Study of Journalism. Details of the research projects and results are published in the RISJ annual report. United States Mass communication, communication studies or simply 'Communication' are names that are used far more frequently than “media studies” for academic departments in the United States. However, the focus of such programs sometimes excludes certain media—film, book publishing, video games, etc. The title “media studies” may be used alone, to designate film studies and rhetorical or critical theory, or it may appear in combinations like “media studies and communication” to join two fields or emphasize a different focus. It involves the study of many emerging, contemporary media and platforms, with social media having boomed in recent years. Broadcast and cable TV is no longer the primary form of entertainment, with various screens offering worldwide events and pastimes around the clock. Proceeding are some examples of the evolution of some institutions that reside within the United States who have taken media studies under their wing and grown with it. In 1999, the MIT Comparative Media Studies program started under the leadership of Henry Jenkins, since growing into a graduate program, MIT's largest humanities major, and, following a 2012 merger with the Writing and Humanistic Studies program, a roster of twenty faculty, including Pulitzer Prize-winning author Junot Diaz, science fiction writer Joe Haldeman, games scholar T. L. Taylor, and media scholars William Uricchio (a CMS co-founder), Edward Schiappa, and Heather Hendershot. Now named Comparative Media Studies/Writing, the department places an emphasis on what Jenkins and colleagues had termed "applied humanities": it hosts several research groups for civic media, digital humanities, games, computational media, documentary, and mobile design, and these groups are used to provide graduate students with research assistantships to cover the cost of tuition and living expenses. The incorporation of Writing and Humanistic Studies also placed MIT's Science Writing program, Writing Across the Curriculum, and Writing and Communications Center under the same roof. Around the same time as MIT an interdisciplinary major at the University of Virginia, the Department of Media Studies was officially established in 2000 and has rapidly grown and doubled in size in 2011. This is partly thanks to the acquisition of Professor Siva Vaidhyanathan, a cultural historian and media scholar, as well as the Inaugural Verklin Media Policy and Ethics Conference, endowed by the CEO of Canoe Ventures and UVA alumnus David Verklin. University of California, Irvine had professor Mark Poster who was one of the first and foremost theorists of media culture in the US who boasted a strong Department of Film & Media Studies. University of California, Berkeley has three institutional structures within media studies that take place in the department of Film and Media (formerly Film Studies Program), including famous theorists as Mary Ann Doane and Linda Williams, the Center for New Media, and a long established interdisciplinary program formerly titled Mass Communications, which recently changed its name to Media Studies. This change eliminated any connotations that may accompany the term “Mass” in the former title. Until recently, Radford University in Virginia used the title "media studies" for a department that taught practitioner-oriented major concentrations in journalism, advertising, broadcast production and Web design. In 2008, those programs were combined with a previous department of communication (speech and public relations) to create a School of Communication. (A media studies major at Radford still means someone concentrating on journalism, broadcasting, advertising or Web production.) Brooklyn College has collaborated with City University of New York to offer graduate studies in television and media since 2015. Currently, the Department of Television and Radio administers an MS in Media Studies, and hosts the Center for the Study of World Television. See also Anthropology of media Fan studies Innis's time- and space-bias Journalism Market for loyalties theory Mass media Mass communication McLuhan's tetrad of media effects Media culture Media echo chamber Media ecology Media literacy Media psychology Media-system dependency Mediatization (media) Narcotizing dysfunction Social aspects of television Sociology The Structural Transformation of the Public Sphere Transparency (humanities) Uses and gratifications theory References External links ‘Media Studies: Text, Production and Context' - How to do Media Studies by Paul Long and Tim Wall from Birmingham City University. The Media Literacy of Primary School Children - How far do Primary School children have the knowledge and skills to access media, make sense of the representations and images produced and to create their own? by Grant Strudley, University of Reading' Humanities

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https://en.wikipedia.org/wiki/Microprocessor

Microprocessor

A microprocessor is a computer processor where the data processing logic and control is included on a single integrated circuit, or a small number of integrated circuits. The microprocessor contains the arithmetic, logic, and control circuitry required to perform the functions of a computer's central processing unit. The integrated circuit is capable of interpreting and executing program instructions and performing arithmetic operations. The microprocessor is a multipurpose, clock-driven, register-based, digital integrated circuit that accepts binary data as input, processes it according to instructions stored in its memory, and provides results (also in binary form) as output. Microprocessors contain both combinational logic and sequential digital logic, and operate on numbers and symbols represented in the binary number system. The integration of a whole CPU onto a single or a few integrated circuits using Very-Large-Scale Integration (VLSI) greatly reduced the cost of processing power. Integrated circuit processors are produced in large numbers by highly automated metal-oxide-semiconductor (MOS) fabrication processes, resulting in a relatively low unit price. Single-chip processors increase reliability because there are much fewer electrical connections that could fail. As microprocessor designs improve, the cost of manufacturing a chip (with smaller components built on a semiconductor chip the same size) generally stays the same according to Rock's law. Before microprocessors, small computers had been built using racks of circuit boards with many medium- and small-scale integrated circuits, typically of TTL type. Microprocessors combined this into one or a few large-scale ICs. The first commercially available microprocessor was the Intel 4004 introduced in 1971. Continued increases in microprocessor capacity have since rendered other forms of computers almost completely obsolete (see history of computing hardware), with one or more microprocessors used in everything from the smallest embedded systems and handheld devices to the largest mainframes and supercomputers. Structure The complexity of an integrated circuit is bounded by physical limitations on the number of transistors that can be put onto one chip, the number of package terminations that can connect the processor to other parts of the system, the number of interconnections it is possible to make on the chip, and the heat that the chip can dissipate. Advancing technology makes more complex and powerful chips feasible to manufacture. A minimal hypothetical microprocessor might include only an arithmetic logic unit (ALU), and a control logic section. The ALU performs addition, subtraction, and operations such as AND or OR. Each operation of the ALU sets one or more flags in a status register, which indicate the results of the last operation (zero value, negative number, overflow, or others). The control logic retrieves instruction codes from memory and initiates the sequence of operations required for the ALU to carry out the instruction. A single operation code might affect many individual data paths, registers, and other elements of the processor. As integrated circuit technology advanced, it was feasible to manufacture more and more complex processors on a single chip. The size of data objects became larger; allowing more transistors on a chip allowed word sizes to increase from 4- and 8-bit words up to today's 64-bit words. Additional features were added to the processor architecture; more on-chip registers sped up programs, and complex instructions could be used to make more compact programs. Floating-point arithmetic, for example, was often not available on 8-bit microprocessors, but had to be carried out in software. Integration of the floating-point unit, first as a separate integrated circuit and then as part of the same microprocessor chip, sped up floating-point calculations. Occasionally, physical limitations of integrated circuits made such practices as a bit slice approach necessary. Instead of processing all of a long word on one integrated circuit, multiple circuits in parallel processed subsets of each word. While this required extra logic to handle, for example, carry and overflow within each slice, the result was a system that could handle, for example, 32-bit words using integrated circuits with a capacity for only four bits each. The ability to put large numbers of transistors on one chip makes it feasible to integrate memory on the same die as the processor. This CPU cache has the advantage of faster access than off-chip memory and increases the processing speed of the system for many applications. Processor clock frequency has increased more rapidly than external memory speed, so cache memory is necessary if the processor is not to be delayed by slower external memory. Special-purpose designs A microprocessor is a general - purpose entity. Several specialized processing devices have followed: A digital signal processor (DSP) is specialized for signal processing. Graphics processing units (GPUs) are processors designed primarily for realtime rendering of images. Other specialized units exist for video processing and machine vision. (See: Hardware acceleration.) Microcontrollers integrate a microprocessor with peripheral devices in embedded systems. Systems on chip (SoCs) often integrate one or more microprocessor or microcontroller cores with other components such as radio modems, and are used in smartphones and tablet computers. Speed and power considerations Microprocessors can be selected for differing applications based on their word size, which is a measure of their complexity. Longer word sizes allow each clock cycle of a processor to carry out more computation, but correspond to physically larger integrated circuit dies with higher standby and operating power consumption. 4-, 8- or 12-bit processors are widely integrated into microcontrollers operating embedded systems. Where a system is expected to handle larger volumes of data or require a more flexible user interface, 16-, 32- or 64-bit processors are used. An 8- or 16-bit processor may be selected over a 32-bit processor for system on a chip or microcontroller applications that require extremely low-power electronics, or are part of a mixed-signal integrated circuit with noise-sensitive on-chip analog electronics such as high-resolution analog to digital converters, or both. Running 32-bit arithmetic on an 8-bit chip could end up using more power, as the chip must execute software with multiple instructions. Embedded applications Thousands of items that were traditionally not computer-related include microprocessors. These include household appliances, vehicles (and their accessories), tools and test instruments, toys, light switches/dimmers and electrical circuit breakers, smoke alarms, battery packs, and hi-fi audio/visual components (from DVD players to phonograph turntables). Such products as cellular telephones, DVD video system and HDTV broadcast systems fundamentally require consumer devices with powerful, low-cost, microprocessors. Increasingly stringent pollution control standards effectively require automobile manufacturers to use microprocessor engine management systems to allow optimal control of emissions over the widely varying operating conditions of an automobile. Non-programmable controls would require bulky, or costly implementation to achieve the results possible with a microprocessor. A microprocessor control program (embedded software) can be tailored to fit the needs of a product line, allowing upgrades in performance with minimal redesign of the product. Unique features can be implemented in product line's various models at negligible production cost. Microprocessor control of a system can provide control strategies that would be impractical to implement using electromechanical controls or purpose-built electronic controls. For example, an internal combustion engine's control system can adjust ignition timing based on engine speed, load, temperature, and any observed tendency for knocking—allowing the engine to operate on a range of fuel grades. History The advent of low-cost computers on integrated circuits has transformed modern society. General-purpose microprocessors in personal computers are used for computation, text editing, multimedia display, and communication over the Internet. Many more microprocessors are part of embedded systems, providing digital control over myriad objects from appliances to automobiles to cellular phones and industrial process control. Microprocessors perform binary operations based on boolean logic, named after George Boole. The ability to operate computer systems using Boolean Logic was first proven in a 1938 thesis by master's student Claude Shannon, who later went on to become a professor. Shannon is considered "The Father of Information Theory". Following the development of MOS integrated circuit chips in the early 1960s, MOS chips reached higher transistor density and lower manufacturing costs than bipolar integrated circuits by 1964. MOS chips further increased in complexity at a rate predicted by Moore's law, leading to large-scale integration (LSI) with hundreds of transistors on a single MOS chip by the late 1960s. The application of MOS LSI chips to computing was the basis for the first microprocessors, as engineers began recognizing that a complete computer processor could be contained on several MOS LSI chips. Designers in the late 1960s were striving to integrate the central processing unit (CPU) functions of a computer onto a handful of MOS LSI chips, called microprocessor unit (MPU) chipsets. The first commercially produced microprocessor was the Intel 4004, released as a single MOS LSI chip in 1971. The single-chip microprocessor was made possible with the development of MOS silicon-gate technology (SGT). The earliest MOS transistors had aluminium metal gates, which Italian physicist Federico Faggin replaced with silicon self-aligned gates to develop the first silicon-gate MOS chip at Fairchild Semiconductor in 1968. Faggin later joined Intel and used his silicon-gate MOS technology to develop the 4004, along with Marcian Hoff, Stanley Mazor and Masatoshi Shima in 1971. The 4004 was designed for Busicom, which had earlier proposed a multi-chip design in 1969, before Faggin's team at Intel changed it into a new single-chip design. Intel introduced the first commercial microprocessor, the 4-bit Intel 4004, in 1971. It was soon followed by the 8-bit microprocessor Intel 8008 in 1972. Other embedded uses of 4-bit and 8-bit microprocessors, such as terminals, printers, various kinds of automation etc., followed soon after. Affordable 8-bit microprocessors with 16-bit addressing also led to the first general-purpose microcomputers from the mid-1970s on. The first use of the term "microprocessor" is attributed to Viatron Computer Systems describing the custom integrated circuit used in their System 21 small computer system announced in 1968. Since the early 1970s, the increase in capacity of microprocessors has followed Moore's law; this originally suggested that the number of components that can be fitted onto a chip doubles every year. With present technology, it is actually every two years, and as a result Moore later changed the period to two years. First projects These projects delivered a microprocessor at about the same time: Garrett AiResearch's Central Air Data Computer (CADC) (1970), Texas Instruments' TMS 1802NC (September 1971) and Intel's 4004 (November 1971, based on an earlier 1969 Busicom design). Arguably, Four-Phase Systems AL1 microprocessor was also delivered in 1969. Four-Phase Systems AL1 (1969) The Four-Phase Systems AL1 was an 8-bit bit slice chip containing eight registers and an ALU. It was designed by Lee Boysel in 1969. At the time, it formed part of a nine-chip, 24-bit CPU with three AL1s, but it was later called a microprocessor when, in response to 1990s litigation by Texas Instruments, a demonstration system was constructed where a single AL1 formed part of a courtroom demonstration computer system, together with RAM, ROM, and an input-output device. Garrett AiResearch CADC (1970) In 1968, Garrett AiResearch (who employed designers Ray Holt and Steve Geller) was invited to produce a digital computer to compete with electromechanical systems then under development for the main flight control computer in the US Navy's new F-14 Tomcat fighter. The design was complete by 1970, and used a MOS-based chipset as the core CPU. The design was significantly (approximately 20 times) smaller and much more reliable than the mechanical systems it competed against and was used in all of the early Tomcat models. This system contained "a 20-bit, pipelined, parallel multi-microprocessor". The Navy refused to allow publication of the design until 1997. Released in 1998, the documentation on the CADC, and the MP944 chipset, are well known. Ray Holt's autobiographical story of this design and development is presented in the book: The Accidental Engineer. Ray Holt graduated from California Polytechnic University in 1968, and began his computer design career with the CADC. From its inception, it was shrouded in secrecy until 1998 when at Holt's request, the US Navy allowed the documents into the public domain. Holt has claimed that no one has compared this microprocessor with those that came later. According to Parab et al. (2007), This convergence of DSP and microcontroller architectures is known as a digital signal controller. Pico/General Instrument In 1971, Pico Electronics and General Instrument (GI) introduced their first collaboration in ICs, a complete single-chip calculator IC for the Monroe/Litton Royal Digital III calculator. This chip could also arguably lay claim to be one of the first microprocessors or microcontrollers having ROM, RAM and a RISC instruction set on-chip. The layout for the four layers of the PMOS process was hand drawn at x500 scale on mylar film, a significant task at the time given the complexity of the chip. Pico was a spinout by five GI design engineers whose vision was to create single-chip calculator ICs. They had significant previous design experience on multiple calculator chipsets with both GI and Marconi-Elliott. The key team members had originally been tasked by Elliott Automation to create an 8-bit computer in MOS and had helped establish a MOS Research Laboratory in Glenrothes, Scotland in 1967. Calculators were becoming the largest single market for semiconductors so Pico and GI went on to have significant success in this burgeoning market. GI continued to innovate in microprocessors and microcontrollers with products including the CP1600, IOB1680 and PIC1650. In 1987, the GI Microelectronics business was spun out into the Microchip PIC microcontroller business. Intel 4004 (1971) The Intel 4004 is generally regarded as the first true microprocessor built on a single chip, priced at The first known advertisement for the 4004 is dated November 15, 1971 and appeared in Electronic News. The microprocessor was designed by a team consisting of Italian engineer Federico Faggin, American engineers Marcian Hoff and Stanley Mazor, and Japanese engineer Masatoshi Shima. The project that produced the 4004 originated in 1969, when Busicom, a Japanese calculator manufacturer, asked Intel to build a chipset for high-performance desktop calculators. Busicom's original design called for a programmable chip set consisting of seven different chips. Three of the chips were to make a special-purpose CPU with its program stored in ROM and its data stored in shift register read-write memory. Ted Hoff, the Intel engineer assigned to evaluate the project, believed the Busicom design could be simplified by using dynamic RAM storage for data, rather than shift register memory, and a more traditional general-purpose CPU architecture. Hoff came up with a four-chip architectural proposal: a ROM chip for storing the programs, a dynamic RAM chip for storing data, a simple I/O device, and a 4-bit central processing unit (CPU). Although not a chip designer, he felt the CPU could be integrated into a single chip, but as he lacked the technical know-how the idea remained just a wish for the time being. While the architecture and specifications of the MCS-4 came from the interaction of Hoff with Stanley Mazor, a software engineer reporting to him, and with Busicom engineer Masatoshi Shima, during 1969, Mazor and Hoff moved on to other projects. In April 1970, Intel hired Italian engineer Federico Faggin as project leader, a move that ultimately made the single-chip CPU final design a reality (Shima meanwhile designed the Busicom calculator firmware and assisted Faggin during the first six months of the implementation). Faggin, who originally developed the silicon gate technology (SGT) in 1968 at Fairchild Semiconductor and designed the world's first commercial integrated circuit using SGT, the Fairchild 3708, had the correct background to lead the project into what would become the first commercial general purpose microprocessor. Since SGT was his very own invention, Faggin also used it to create his new methodology for random logic design that made it possible to implement a single-chip CPU with the proper speed, power dissipation and cost. The manager of Intel's MOS Design Department was Leslie L. Vadász at the time of the MCS-4 development but Vadász's attention was completely focused on the mainstream business of semiconductor memories so he left the leadership and the management of the MCS-4 project to Faggin, who was ultimately responsible for leading the 4004 project to its realization. Production units of the 4004 were first delivered to Busicom in March 1971 and shipped to other customers in late 1971. Texas Instruments TMX 1795 (1970-1971) Along with Intel (who developed the 8008), Texas Instruments developed in 1970–1971 a one-chip CPU replacement for the Datapoint 2200 terminal, the TMX 1795 (later TMC 1795.) Like the 8008, it was rejected by customer Datapoint. According to Gary Boone, the TMX 1795 never reached production. Since it was built to the same specification, its instruction set was very similar to the Intel 8008. Texas Instruments TMS 1802NC (1971) The TMS1802NC was announced September 17, 1971, and implemented a four-function calculator. The TMS1802NC, despite its designation, was not part of the TMS 1000 series; it was later redesignated as part of the TMS 0100 series, which was used in the TI Datamath calculator. Although marketed as a calculator-on-a-chip, the TMS1802NC was fully programmable, including on the chip a CPU with an 11-bit instruction word, 3520 bits (320 instructions) of ROM and 182 bits of RAM. Gilbert Hyatt Gilbert Hyatt was awarded a patent claiming an invention pre-dating both TI and Intel, describing a "microcontroller". The patent was later invalidated, but not before substantial royalties were paid out. 8-bit designs The Intel 4004 was followed in 1972 by the Intel 8008, the world's first 8-bit microprocessor. The 8008 was not, however, an extension of the 4004 design, but instead the culmination of a separate design project at Intel, arising from a contract with Computer Terminals Corporation, of San Antonio TX, for a chip for a terminal they were designing, the Datapoint 2200—fundamental aspects of the design came not from Intel but from CTC. In 1968, CTC's Vic Poor and Harry Pyle developed the original design for the instruction set and operation of the processor. In 1969, CTC contracted two companies, Intel and Texas Instruments, to make a single-chip implementation, known as the CTC 1201. In late 1970 or early 1971, TI dropped out being unable to make a reliable part. In 1970, with Intel yet to deliver the part, CTC opted to use their own implementation in the Datapoint 2200, using traditional TTL logic instead (thus the first machine to run "8008 code" was not in fact a microprocessor at all and was delivered a year earlier). Intel's version of the 1201 microprocessor arrived in late 1971, but was too late, slow, and required a number of additional support chips. CTC had no interest in using it. CTC had originally contracted Intel for the chip, and would have owed them for their design work. To avoid paying for a chip they did not want (and could not use), CTC released Intel from their contract and allowed them free use of the design. Intel marketed it as the 8008 in April, 1972, as the world's first 8-bit microprocessor. It was the basis for the famous "Mark-8" computer kit advertised in the magazine Radio-Electronics in 1974. This processor had an 8-bit data bus and a 14-bit address bus. The 8008 was the precursor to the successful Intel 8080 (1974), which offered improved performance over the 8008 and required fewer support chips. Federico Faggin conceived and designed it using high voltage N channel MOS. The Zilog Z80 (1976) was also a Faggin design, using low voltage N channel with depletion load and derivative Intel 8-bit processors: all designed with the methodology Faggin created for the 4004. Motorola released the competing 6800 in August 1974, and the similar MOS Technology 6502 was released in 1975 (both designed largely by the same people). The 6502 family rivaled the Z80 in popularity during the 1980s. A low overall cost, little packaging, simple computer bus requirements, and sometimes the integration of extra circuitry (e.g. the Z80's built-in memory refresh circuitry) allowed the home computer "revolution" to accelerate sharply in the early 1980s. This delivered such inexpensive machines as the Sinclair ZX81, which sold for . A variation of the 6502, the MOS Technology 6510 was used in the Commodore 64 and yet another variant, the 8502, powered the Commodore 128. The Western Design Center, Inc (WDC) introduced the CMOS WDC 65C02 in 1982 and licensed the design to several firms. It was used as the CPU in the Apple IIe and IIc personal computers as well as in medical implantable grade pacemakers and defibrillators, automotive, industrial and consumer devices. WDC pioneered the licensing of microprocessor designs, later followed by ARM (32-bit) and other microprocessor intellectual property (IP) providers in the 1990s. Motorola introduced the MC6809 in 1978. It was an ambitious and well thought-through 8-bit design that was source compatible with the 6800, and implemented using purely hard-wired logic (subsequent 16-bit microprocessors typically used microcode to some extent, as CISC design requirements were becoming too complex for pure hard-wired logic). Another early 8-bit microprocessor was the Signetics 2650, which enjoyed a brief surge of interest due to its innovative and powerful instruction set architecture. A seminal microprocessor in the world of spaceflight was RCA's RCA 1802 (aka CDP1802, RCA COSMAC) (introduced in 1976), which was used on board the Galileo probe to Jupiter (launched 1989, arrived 1995). RCA COSMAC was the first to implement CMOS technology. The CDP1802 was used because it could be run at very low power, and because a variant was available fabricated using a special production process, silicon on sapphire (SOS), which provided much better protection against cosmic radiation and electrostatic discharge than that of any other processor of the era. Thus, the SOS version of the 1802 was said to be the first radiation-hardened microprocessor. The RCA 1802 had a static design, meaning that the clock frequency could be made arbitrarily low, or even stopped. This let the Galileo spacecraft use minimum electric power for long uneventful stretches of a voyage. Timers or sensors would awaken the processor in time for important tasks, such as navigation updates, attitude control, data acquisition, and radio communication. Current versions of the Western Design Center 65C02 and 65C816 have static cores, and thus retain data even when the clock is completely halted. 12-bit designs The Intersil 6100 family consisted of a 12-bit microprocessor (the 6100) and a range of peripheral support and memory ICs. The microprocessor recognised the DEC PDP-8 minicomputer instruction set. As such it was sometimes referred to as the CMOS-PDP8. Since it was also produced by Harris Corporation, it was also known as the Harris HM-6100. By virtue of its CMOS technology and associated benefits, the 6100 was being incorporated into some military designs until the early 1980s. 16-bit designs The first multi-chip 16-bit microprocessor was the National Semiconductor IMP-16, introduced in early 1973. An 8-bit version of the chipset was introduced in 1974 as the IMP-8. Other early multi-chip 16-bit microprocessors include the MCP-1600 that Digital Equipment Corporation (DEC) used in the LSI-11 OEM board set and the packaged PDP-11/03 minicomputer—and the Fairchild Semiconductor MicroFlame 9440, both introduced in 1975–76. In 1975, National introduced the first 16-bit single-chip microprocessor, the National Semiconductor PACE, which was later followed by an NMOS version, the INS8900. Another early single-chip 16-bit microprocessor was TI's TMS 9900, which was also compatible with their TI-990 line of minicomputers. The 9900 was used in the TI 990/4 minicomputer, the Texas Instruments TI-99/4A home computer, and the TM990 line of OEM microcomputer boards. The chip was packaged in a large ceramic 64-pin DIP package, while most 8-bit microprocessors such as the Intel 8080 used the more common, smaller, and less expensive plastic 40-pin DIP. A follow-on chip, the TMS 9980, was designed to compete with the Intel 8080, had the full TI 990 16-bit instruction set, used a plastic 40-pin package, moved data 8 bits at a time, but could only address 16 KB. A third chip, the TMS 9995, was a new design. The family later expanded to include the 99105 and 99110. The Western Design Center (WDC) introduced the CMOS 65816 16-bit upgrade of the WDC CMOS 65C02 in 1984. The 65816 16-bit microprocessor was the core of the Apple IIgs and later the Super Nintendo Entertainment System, making it one of the most popular 16-bit designs of all time. Intel "upsized" their 8080 design into the 16-bit Intel 8086, the first member of the x86 family, which powers most modern PC type computers. Intel introduced the 8086 as a cost-effective way of porting software from the 8080 lines, and succeeded in winning much business on that premise. The 8088, a version of the 8086 that used an 8-bit external data bus, was the microprocessor in the first IBM PC. Intel then released the 80186 and 80188, the 80286 and, in 1985, the 32-bit 80386, cementing their PC market dominance with the processor family's backwards compatibility. The 80186 and 80188 were essentially versions of the 8086 and 8088, enhanced with some onboard peripherals and a few new instructions. Although Intel's 80186 and 80188 were not used in IBM PC type designs, second source versions from NEC, the V20 and V30 frequently were. The 8086 and successors had an innovative but limited method of memory segmentation, while the 80286 introduced a full-featured segmented memory management unit (MMU). The 80386 introduced a flat 32-bit memory model with paged memory management. The 16-bit Intel x86 processors up to and including the 80386 do not include floating-point units (FPUs). Intel introduced the 8087, 80187, 80287 and 80387 math coprocessors to add hardware floating-point and transcendental function capabilities to the 8086 through 80386 CPUs. The 8087 works with the 8086/8088 and 80186/80188, the 80187 works with the 80186 but not the 80188, the 80287 works with the 80286 and the 80387 works with the 80386. The combination of an x86 CPU and an x87 coprocessor forms a single multi-chip microprocessor; the two chips are programmed as a unit using a single integrated instruction set. The 8087 and 80187 coprocessors are connected in parallel with the data and address buses of their parent processor and directly execute instructions intended for them. The 80287 and 80387 coprocessors are interfaced to the CPU through I/O ports in the CPU's address space, this is transparent to the program, which does not need to know about or access these I/O ports directly; the program accesses the coprocessor and its registers through normal instruction opcodes. 32-bit designs 16-bit designs had only been on the market briefly when 32-bit implementations started to appear. The most significant of the 32-bit designs is the Motorola MC68000, introduced in 1979. The 68k, as it was widely known, had 32-bit registers in its programming model but used 16-bit internal data paths, three 16-bit Arithmetic Logic Units, and a 16-bit external data bus (to reduce pin count), and externally supported only 24-bit addresses (internally it worked with full 32 bit addresses). In PC-based IBM-compatible mainframes the MC68000 internal microcode was modified to emulate the 32-bit System/370 IBM mainframe. Motorola generally described it as a 16-bit processor. The combination of high performance, large (16 megabytes or 224 bytes) memory space and fairly low cost made it the most popular CPU design of its class. The Apple Lisa and Macintosh designs made use of the 68000, as did a host of other designs in the mid-1980s, including the Atari ST and Commodore Amiga. The world's first single-chip fully 32-bit microprocessor, with 32-bit data paths, 32-bit buses, and 32-bit addresses, was the AT&T Bell Labs BELLMAC-32A, with first samples in 1980, and general production in 1982. After the divestiture of AT&T in 1984, it was renamed the WE 32000 (WE for Western Electric), and had two follow-on generations, the WE 32100 and WE 32200. These microprocessors were used in the AT&T 3B5 and 3B15 minicomputers; in the 3B2, the world's first desktop super microcomputer; in the "Companion", the world's first 32-bit laptop computer; and in "Alexander", the world's first book-sized super microcomputer, featuring ROM-pack memory cartridges similar to today's gaming consoles. All these systems ran the UNIX System V operating system. The first commercial, single chip, fully 32-bit microprocessor available on the market was the HP FOCUS. Intel's first 32-bit microprocessor was the iAPX 432, which was introduced in 1981, but was not a commercial success. It had an advanced capability-based object-oriented architecture, but poor performance compared to contemporary architectures such as Intel's own 80286 (introduced 1982), which was almost four times as fast on typical benchmark tests. However, the results for the iAPX432 was partly due to a rushed and therefore suboptimal Ada compiler. Motorola's success with the 68000 led to the MC68010, which added virtual memory support. The MC68020, introduced in 1984 added full 32-bit data and address buses. The 68020 became hugely popular in the Unix supermicrocomputer market, and many small companies (e.g., Altos, Charles River Data Systems, Cromemco) produced desktop-size systems. The MC68030 was introduced next, improving upon the previous design by integrating the MMU into the chip. The continued success led to the MC68040, which included an FPU for better math performance. The 68050 failed to achieve its performance goals and was not released, and the follow-up MC68060 was released into a market saturated by much faster RISC designs. The 68k family faded from use in the early 1990s. Other large companies designed the 68020 and follow-ons into embedded equipment. At one point, there were more 68020s in embedded equipment than there were Intel Pentiums in PCs. The ColdFire processor cores are derivatives of the 68020. During this time (early to mid-1980s), National Semiconductor introduced a very similar 16-bit pinout, 32-bit internal microprocessor called the NS 16032 (later renamed 32016), the full 32-bit version named the NS 32032. Later, National Semiconductor produced the NS 32132, which allowed two CPUs to reside on the same memory bus with built in arbitration. The NS32016/32 outperformed the MC68000/10, but the NS32332—which arrived at approximately the same time as the MC68020—did not have enough performance. The third generation chip, the NS32532, was different. It had about double the performance of the MC68030, which was released around the same time. The appearance of RISC processors like the AM29000 and MC88000 (now both dead) influenced the architecture of the final core, the NS32764. Technically advanced—with a superscalar RISC core, 64-bit bus, and internally overclocked—it could still execute Series 32000 instructions through real-time translation. When National Semiconductor decided to leave the Unix market, the chip was redesigned into the Swordfish Embedded processor with a set of on-chip peripherals. The chip turned out to be too expensive for the laser printer market and was killed. The design team went to Intel and there designed the Pentium processor, which is very similar to the NS32764 core internally. The big success of the Series 32000 was in the laser printer market, where the NS32CG16 with microcoded BitBlt instructions had very good price/performance and was adopted by large companies like Canon. By the mid-1980s, Sequent introduced the first SMP server-class computer using the NS 32032. This was one of the design's few wins, and it disappeared in the late 1980s. The MIPS R2000 (1984) and R3000 (1989) were highly successful 32-bit RISC microprocessors. They were used in high-end workstations and servers by SGI, among others. Other designs included the Zilog Z80000, which arrived too late to market to stand a chance and disappeared quickly. The ARM first appeared in 1985. This is a RISC processor design, which has since come to dominate the 32-bit embedded systems processor space due in large part to its power efficiency, its licensing model, and its wide selection of system development tools. Semiconductor manufacturers generally license cores and integrate them into their own system on a chip products; only a few such vendors such as Apple are licensed to modify the ARM cores or create their own. Most cell phones include an ARM processor, as do a wide variety of other products. There are microcontroller-oriented ARM cores without virtual memory support, as well as symmetric multiprocessor (SMP) applications processors with virtual memory. From 1993 to 2003, the 32-bit x86 architectures became increasingly dominant in desktop, laptop, and server markets, and these microprocessors became faster and more capable. Intel had licensed early versions of the architecture to other companies, but declined to license the Pentium, so AMD and Cyrix built later versions of the architecture based on their own designs. During this span, these processors increased in complexity (transistor count) and capability (instructions/second) by at least three orders of magnitude. Intel's Pentium line is probably the most famous and recognizable 32-bit processor model, at least with the public at broad. 64-bit designs in personal computers While 64-bit microprocessor designs have been in use in several markets since the early 1990s (including the Nintendo 64 gaming console in 1996), the early 2000s saw the introduction of 64-bit microprocessors targeted at the PC market. With AMD's introduction of a 64-bit architecture backwards-compatible with x86, x86-64 (also called AMD64), in September 2003, followed by Intel's near fully compatible 64-bit extensions (first called IA-32e or EM64T, later renamed Intel 64), the 64-bit desktop era began. Both versions can run 32-bit legacy applications without any performance penalty as well as new 64-bit software. With operating systems Windows XP x64, Windows Vista x64, Windows 7 x64, Linux, BSD, and macOS that run 64-bit natively, the software is also geared to fully utilize the capabilities of such processors. The move to 64 bits is more than just an increase in register size from the IA-32 as it also doubles the number of general-purpose registers. The move to 64 bits by PowerPC had been intended since the architecture's design in the early 90s and was not a major cause of incompatibility. Existing integer registers are extended as are all related data pathways, but, as was the case with IA-32, both floating-point and vector units had been operating at or above 64 bits for several years. Unlike what happened when IA-32 was extended to x86-64, no new general purpose registers were added in 64-bit PowerPC, so any performance gained when using the 64-bit mode for applications making no use of the larger address space is minimal. In 2011, ARM introduced a new 64-bit ARM architecture. RISC In the mid-1980s to early 1990s, a crop of new high-performance reduced instruction set computer (RISC) microprocessors appeared, influenced by discrete RISC-like CPU designs such as the IBM 801 and others. RISC microprocessors were initially used in special-purpose machines and Unix workstations, but then gained wide acceptance in other roles. The first commercial RISC microprocessor design was released in 1984, by MIPS Computer Systems, the 32-bit R2000 (the R1000 was not released). In 1986, HP released its first system with a PA-RISC CPU. In 1987, in the non-Unix Acorn computers' 32-bit, then cache-less, ARM2-based Acorn Archimedes became the first commercial success using the ARM architecture, then known as Acorn RISC Machine (ARM); first silicon ARM1 in 1985. The R3000 made the design truly practical, and the R4000 introduced the world's first commercially available 64-bit RISC microprocessor. Competing projects would result in the IBM POWER and Sun SPARC architectures. Soon every major vendor was releasing a RISC design, including the AT&T CRISP, AMD 29000, Intel i860 and Intel i960, Motorola 88000, DEC Alpha. In the late 1990s, only two 64-bit RISC architectures were still produced in volume for non-embedded applications: SPARC and Power ISA, but as ARM has become increasingly powerful, in the early 2010s, it became the third RISC architecture in the general computing segment. SMP and multi-core design SMP symmetric multiprocessing is a configuration of two, four, or more CPU's (in pairs) that are typically used in servers, certain workstations and in desktop personal computers, since the 1990s. A multi-core processor is a single CPU that contains more than one microprocessor core. This popular two-socket motherboard from Abit was released in 1999 as the first SMP enabled PC motherboard, the Intel Pentium Pro was the first commercial CPU offered to system builders and enthusiasts. The Abit BP9 supports two Intel Celeron CPU's and when used with a SMP enabled operating system (Windows NT/2000/Linux) many applications obtain much higher performance than a single CPU. The early Celerons are easily overclockable and hobbyists used these relatively inexpensive CPU's clocked as high as 533Mhz - far beyond Intel's specification. After discovering the capacity of these motherboards Intel removed access to the multiplier in later CPU's. In 2001 IBM released the POWER4 CPU, it was a processor that was developed over five years of research, began in 1996 using a team of 250 researchers. The effort to accomplish the impossible was buttressed by development of and through—remote-collaboration and assigning younger engineers to work with more experienced engineers. The teams work achieved success with the new microprocessor, Power4. It is a two-in-one CPU that more than doubled performance at half the price of the competition, and a major advance in computing. The business magazine eWeek wrote: “The newly designed 1GHz Power4 represents a tremendous leap over its predecessor”. An industry analyst, Brad Day of Giga Information Group said: “IBM is getting very aggressive, and this server is a game changer”. The Power4 won "Analysts’ Choice Award for Best Workstation/Server Processor of 2001", and it broke notable records, including winning a contest against the best players on the Jeopardy! U.S. television show. Intel's codename Yonah CPU's launched on Jan 6, 2006 and were manufactured with two dies packaged on a multi-chip module. In a hotly-contested marketplace AMD and others released new versions of multi-core CPU's, AMD's SMP enabled Athlon MP CPU's from the AthlonXP line in 2001, Sun released the Niagara and Niagara 2 with eight-cores, AMD's Athlon X2 was released in June 2007. The companies were engaged in a never-ending race for speed, indeed more demanding software mandated more processing power and faster CPU speeds. By 2012 dual and quad-core processors became widely used in PCs and laptops, newer processors - similar to the higher cost professional level Intel Xeon's - with additional cores that execute instructions in parallel so software performance typically increases, provided the software is designed to utilize advanced hardware. Operating systems provided support for multiple-cores and SMD CPU's, many software applications including large workload and resource intensive applications - such as 3-D games - are programmed to take advantage of multiple core and multi-CPU systems. Apple, Intel, and AMD currently lead the market with multiple core desktop and workstation CPU's. Although they frequently hip-hop each other for the lead in the performance tier. Intel retains higher frequencies and thus has the fastest single core performance, while AMD is often the leader in multi-threaded routines due to a more advanced ISA and the process node the CPU's are fabricated on. Multiprocessing concepts for multi-core/multi-cpu configurations are related to Amdahl's law. Market statistics In 1997, about 55% of all CPUs sold in the world were 8-bit microcontrollers, of which over 2 billion were sold. In 2002, less than 10% of all the CPUs sold in the world were 32-bit or more. Of all the 32-bit CPUs sold, about 2% are used in desktop or laptop personal computers. Most microprocessors are used in embedded control applications such as household appliances, automobiles, and computer peripherals. Taken as a whole, the average price for a microprocessor, microcontroller, or DSP is just over . In 2003, about $44 billion (equivalent to about $ billion in ) worth of microprocessors were manufactured and sold. Although about half of that money was spent on CPUs used in desktop or laptop personal computers, those count for only about 2% of all CPUs sold. The quality-adjusted price of laptop microprocessors improved −25% to −35% per year in 2004–2010, and the rate of improvement slowed to −15% to −25% per year in 2010–2013. About 10 billion CPUs were manufactured in 2008. Most new CPUs produced each year are embedded. See also Comparison of CPU architectures Computer architecture Computer engineering List of instruction sets List of microprocessors Microarchitecture Microprocessor chronology Notes References External links Patent problems American inventions Japanese inventions Digital electronics History of computing hardware Microcomputers Telecommunications engineering 1971 introductions

19555

https://en.wikipedia.org/wiki/Molecule

Molecule

A molecule is an electrically neutral group of two or more atoms held together by chemical bonds. Molecules are distinguished from ions by their lack of electrical charge. In quantum physics, organic chemistry, and biochemistry, the distinction from ions is dropped and molecule is often used when referring to polyatomic ions. In the kinetic theory of gases, the term molecule is often used for any gaseous particle regardless of its composition. This relaxes the requirement that a molecule contains two or more atoms, since the noble gases are individual atoms. A molecule may be homonuclear, that is, it consists of atoms of one chemical element, e.g. two atoms in the oxygen molecule (O2); or it may be heteronuclear, a chemical compound composed of more than one element, e.g. water (two hydrogen atoms and one oxygen atom; H2O). Atoms and complexes connected by non-covalent interactions, such as hydrogen bonds or ionic bonds, are typically not considered single molecules. Molecules as components of matter are common. They also make up most of the oceans and atmosphere. Most organic substances are molecules. The substances of life are molecules, e.g. proteins, the amino acids of which they are composed, the nucleic acids (DNA and RNA), sugars, carbohydrates, fats, and vitamins. The nutrient minerals are generally ionic compounds, thus they are not molecules, e.g. iron sulfate. However, the majority of familiar solid substances on Earth are made partly or completely of crystals or ionic compounds, which are not made of molecules. These include all of the minerals that make up the substance of the Earth, sand, clay, pebbles, rocks, boulders, bedrock, the molten interior, and the core of the Earth. All of these contain many chemical bonds, but are not made of identifiable molecules. No typical molecule can be defined for salts nor for covalent crystals, although these are often composed of repeating unit cells that extend either in a plane, e.g. graphene; or three-dimensionally e.g. diamond, quartz, sodium chloride. The theme of repeated unit-cellular-structure also holds for most metals which are condensed phases with metallic bonding. Thus solid metals are not made of molecules. In glasses, which are solids that exist in a vitreous disordered state, the atoms are held together by chemical bonds with no presence of any definable molecule, nor any of the regularity of repeating unit-cellular-structure that characterizes salts, covalent crystals, and metals. Molecular science The science of molecules is called molecular chemistry or molecular physics, depending on whether the focus is on chemistry or physics. Molecular chemistry deals with the laws governing the interaction between molecules that results in the formation and breakage of chemical bonds, while molecular physics deals with the laws governing their structure and properties. In practice, however, this distinction is vague. In molecular sciences, a molecule consists of a stable system (bound state) composed of two or more atoms. Polyatomic ions may sometimes be usefully thought of as electrically charged molecules. The term unstable molecule is used for very reactive species, i.e., short-lived assemblies (resonances) of electrons and nuclei, such as radicals, molecular ions, Rydberg molecules, transition states, van der Waals complexes, or systems of colliding atoms as in Bose–Einstein condensate. History and etymology According to Merriam-Webster and the Online Etymology Dictionary, the word "molecule" derives from the Latin "moles" or small unit of mass. Molecule (1794) – "extremely minute particle", from French (1678), from New Latin , diminutive of Latin "mass, barrier". A vague meaning at first; the vogue for the word (used until the late 18th century only in Latin form) can be traced to the philosophy of Descartes. The definition of the molecule has evolved as knowledge of the structure of molecules has increased. Earlier definitions were less precise, defining molecules as the smallest particles of pure chemical substances that still retain their composition and chemical properties. This definition often breaks down since many substances in ordinary experience, such as rocks, salts, and metals, are composed of large crystalline networks of chemically bonded atoms or ions, but are not made of discrete molecules. Bonding Molecules are generally held together by covalent bonding. Several non-metallic elements exist only as molecules in the environment either in compounds or as homonuclear molecules, not as free atoms: for example, hydrogen. While some people say a metallic crystal can be considered a single giant molecule held together by metallic bonding, others point out that metals behave very differently than molecules. Covalent A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are termed shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is termed covalent bonding. Ionic Ionic bonding is a type of chemical bond that involves the electrostatic attraction between oppositely charged ions, and is the primary interaction occurring in ionic compounds. The ions are atoms that have lost one or more electrons (termed cations) and atoms that have gained one or more electrons (termed anions). This transfer of electrons is termed electrovalence in contrast to covalence. In the simplest case, the cation is a metal atom and the anion is a nonmetal atom, but these ions can be of a more complicated nature, e.g. molecular ions like NH4+ or SO42−. At normal temperatures and pressures, ionic bonding mostly creates solids (or occasionally liquids) without separate identifiable molecules, but the vaporization/sublimation of such materials does produce separate molecules where electrons are still transferred fully enough for the bonds to be considered ionic rather than covalent. Molecular size Most molecules are far too small to be seen with the naked eye, although molecules of many polymers can reach macroscopic sizes, including biopolymers such as DNA. Molecules commonly used as building blocks for organic synthesis have a dimension of a few angstroms (Å) to several dozen Å, or around one billionth of a meter. Single molecules cannot usually be observed by light (as noted above), but small molecules and even the outlines of individual atoms may be traced in some circumstances by use of an atomic force microscope. Some of the largest molecules are macromolecules or supermolecules. The smallest molecule is the diatomic hydrogen (H2), with a bond length of 0.74 Å. Effective molecular radius is the size a molecule displays in solution. The table of permselectivity for different substances contains examples. Molecular formulas Chemical formula types The chemical formula for a molecule uses one line of chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, and plus (+) and minus (−) signs. These are limited to one typographic line of symbols, which may include subscripts and superscripts. A compound's empirical formula is a very simple type of chemical formula. It is the simplest integer ratio of the chemical elements that constitute it. For example, water is always composed of a 2:1 ratio of hydrogen to oxygen atoms, and ethanol (ethyl alcohol) is always composed of carbon, hydrogen, and oxygen in a 2:6:1 ratio. However, this does not determine the kind of molecule uniquely – dimethyl ether has the same ratios as ethanol, for instance. Molecules with the same atoms in different arrangements are called isomers. Also carbohydrates, for example, have the same ratio (carbon:hydrogen:oxygen= 1:2:1) (and thus the same empirical formula) but different total numbers of atoms in the molecule. The molecular formula reflects the exact number of atoms that compose the molecule and so characterizes different molecules. However different isomers can have the same atomic composition while being different molecules. The empirical formula is often the same as the molecular formula but not always. For example, the molecule acetylene has molecular formula C2H2, but the simplest integer ratio of elements is CH. The molecular mass can be calculated from the chemical formula and is expressed in conventional atomic mass units equal to 1/12 of the mass of a neutral carbon-12 (12C isotope) atom. For network solids, the term formula unit is used in stoichiometric calculations. Structural formula For molecules with a complicated 3-dimensional structure, especially involving atoms bonded to four different substituents, a simple molecular formula or even semi-structural chemical formula may not be enough to completely specify the molecule. In this case, a graphical type of formula called a structural formula may be needed. Structural formulas may in turn be represented with a one-dimensional chemical name, but such chemical nomenclature requires many words and terms which are not part of chemical formulas. Molecular geometry Molecules have fixed equilibrium geometries—bond lengths and angles— about which they continuously oscillate through vibrational and rotational motions. A pure substance is composed of molecules with the same average geometrical structure. The chemical formula and the structure of a molecule are the two important factors that determine its properties, particularly its reactivity. Isomers share a chemical formula but normally have very different properties because of their different structures. Stereoisomers, a particular type of isomer, may have very similar physico-chemical properties and at the same time different biochemical activities. Molecular spectroscopy Molecular spectroscopy deals with the response (spectrum) of molecules interacting with probing signals of known energy (or frequency, according to Planck's formula). Molecules have quantized energy levels that can be analyzed by detecting the molecule's energy exchange through absorbance or emission. Spectroscopy does not generally refer to diffraction studies where particles such as neutrons, electrons, or high energy X-rays interact with a regular arrangement of molecules (as in a crystal). Microwave spectroscopy commonly measures changes in the rotation of molecules, and can be used to identify molecules in outer space. Infrared spectroscopy measures the vibration of molecules, including stretching, bending or twisting motions. It is commonly used to identify the kinds of bonds or functional groups in molecules. Changes in the arrangements of electrons yield absorption or emission lines in ultraviolet, visible or near infrared light, and result in colour. Nuclear resonance spectroscopy measures the environment of particular nuclei in the molecule, and can be used to characterise the numbers of atoms in different positions in a molecule. Theoretical aspects The study of molecules by molecular physics and theoretical chemistry is largely based on quantum mechanics and is essential for the understanding of the chemical bond. The simplest of molecules is the hydrogen molecule-ion, H2+, and the simplest of all the chemical bonds is the one-electron bond. H2+ is composed of two positively charged protons and one negatively charged electron, which means that the Schrödinger equation for the system can be solved more easily due to the lack of electron–electron repulsion. With the development of fast digital computers, approximate solutions for more complicated molecules became possible and are one of the main aspects of computational chemistry. When trying to define rigorously whether an arrangement of atoms is sufficiently stable to be considered a molecule, IUPAC suggests that it "must correspond to a depression on the potential energy surface that is deep enough to confine at least one vibrational state". This definition does not depend on the nature of the interaction between the atoms, but only on the strength of the interaction. In fact, it includes weakly bound species that would not traditionally be considered molecules, such as the helium dimer, He2, which has one vibrational bound state and is so loosely bound that it is only likely to be observed at very low temperatures. Whether or not an arrangement of atoms is sufficiently stable to be considered a molecule is inherently an operational definition. Philosophically, therefore, a molecule is not a fundamental entity (in contrast, for instance, to an elementary particle); rather, the concept of a molecule is the chemist's way of making a useful statement about the strengths of atomic-scale interactions in the world that we observe. See also Atom Chemical polarity Chemical structure Covalent bond Diatomic molecule List of compounds List of interstellar and circumstellar molecules Molecular biology Molecular design software Molecular engineering Molecular geometry Molecular Hamiltonian Molecular ion Molecular modelling Molecular promiscuity Molecular orbital Non-covalent bonding Periodic systems of small molecules Small molecule Comparison of software for molecular mechanics modeling Van der Waals molecule World Wide Molecular Matrix References External links Molecule of the MonthSchool of Chemistry, University of Bristol Chemistry Matter

19556

https://en.wikipedia.org/wiki/Mode%20%28music%29

Mode (music)

In music theory, the term mode or modus is used in a number of distinct senses, depending on context. Its most common use may be described as a type of musical scale coupled with a set of characteristic melodic and harmonic behaviors. It is applied to major and minor keys as well as the seven diatonic modes (including the former as Ionian and Aeolian) which are defined by their starting note or tonic. (Olivier Messiaen's modes of limited transposition are strictly a scale type.) Related to the diatonic modes are the eight church modes or Gregorian modes, in which authentic and plagal forms of scales are distinguished by ambitus and tenor or reciting tone. Although both diatonic and gregorian modes borrow terminology from ancient Greece, the Greek tonoi do not otherwise resemble their mediaeval/modern counterparts. In the Middle Ages the term modus was used to describe both intervals and rhythm. Modal rhythm was an essential feature of the modal notation system of the Notre-Dame school at the turn of the 12th century. In the mensural notation that emerged later, modus specifies the subdivision of the longa. Outside of Western classical music, "mode" is sometimes used to embrace similar concepts such as Octoechos, maqam, pathet etc. (see #Analogues in different musical traditions below). Mode as a general concept Regarding the concept of mode as applied to pitch relationships generally, Harold S. Powers proposed that "mode" has "a twofold sense", denoting either a "particularized scale" or a "generalized tune", or both. "If one thinks of scale and tune as representing the poles of a continuum of melodic predetermination, then most of the area between can be designated one way or the other as being in the domain of mode". In 1792, Sir Willam Jones applied the term "mode" to the music of "the Persians and the Hindoos". As early as 1271, Amerus applied the concept to cantilenis organicis, i.e. most probably polyphony. It is still heavily used with regard to Western polyphony before the onset of the common practice period, as for example "modale Mehrstimmigkeit" by Carl Dahlhaus or "Tonarten" of the 16th and 17th centuries found by Bernhard Meier. The word encompasses several additional meanings. Authors from the 9th century until the early 18th century (e.g., Guido of Arezzo) sometimes employed the Latin modus for interval, or for qualities of individual notes. In the theory of late-medieval mensural polyphony (e.g., Franco of Cologne), modus is a rhythmic relationship between long and short values or a pattern made from them; in mensural music most often theorists applied it to division of longa into 3 or 2 breves. Modes and scales A musical scale is a series of pitches in a distinct order. The concept of "mode" in Western music theory has three successive stages: in Gregorian chant theory, in Renaissance polyphonic theory, and in tonal harmonic music of the common practice period. In all three contexts, "mode" incorporates the idea of the diatonic scale, but differs from it by also involving an element of melody type. This concerns particular repertories of short musical figures or groups of tones within a certain scale so that, depending on the point of view, mode takes on the meaning of either a "particularized scale" or a "generalized tune". Modern musicological practice has extended the concept of mode to earlier musical systems, such as those of Ancient Greek music, Jewish cantillation, and the Byzantine system of octoechoi, as well as to other non-Western types of music. By the early 19th century, the word "mode" had taken on an additional meaning, in reference to the difference between major and minor keys, specified as "major mode" and "minor mode". At the same time, composers were beginning to conceive of "modality" as something outside of the major/minor system that could be used to evoke religious feelings or to suggest folk-music idioms. Greek modes Early Greek treatises describe three interrelated concepts that are related to the later, medieval idea of "mode": (1) scales (or "systems"), (2) tonos – pl. tonoi – (the more usual term used in medieval theory for what later came to be called "mode"), and (3) harmonia (harmony) – pl. harmoniai – this third term subsuming the corresponding tonoi but not necessarily the converse. Greek scales The Greek scales in the Aristoxenian tradition were: Mixolydian: hypate hypaton–paramese (b–b′) Lydian: parhypate hypaton–trite diezeugmenon (c′–c″) Phrygian: lichanos hypaton–paranete diezeugmenon (d′–d″) Dorian: hypate meson–nete diezeugmenon (e′–e″) Hypolydian: parhypate meson–trite hyperbolaion (f′–f″) Hypophrygian: lichanos meson–paranete hyperbolaion (g′–g″) Common, Locrian, or Hypodorian: mese–nete hyperbolaion or proslambnomenos–mese (a′–a″ or a–a′) These names are derived from an Ancient Greek subgroup (Dorians), a small region in central Greece (Locris), and certain neighboring peoples (non-Greek but related to them) from Asia Minor (Lydia, Phrygia). The association of these ethnic names with the octave species appears to precede Aristoxenus, who criticized their application to the tonoi by the earlier theorists whom he called the "Harmonicists." According to Bélis (2001), he felt that their diagrams, which exhibit 28 consecutive dieses, were "... devoid of any musical reality since more than two quarter-tones are never heard in succession." Depending on the positioning (spacing) of the interposed tones in the tetrachords, three genera of the seven octave species can be recognized. The diatonic genus (composed of tones and semitones), the chromatic genus (semitones and a minor third), and the enharmonic genus (with a major third and two quarter tones or dieses). The framing interval of the perfect fourth is fixed, while the two internal pitches are movable. Within the basic forms, the intervals of the chromatic and diatonic genera were varied further by three and two "shades" (chroai), respectively. In contrast to the medieval modal system, these scales and their related tonoi and harmoniai appear to have had no hierarchical relationships amongst the notes that could establish contrasting points of tension and rest, although the mese ("middle note") may have had some sort of gravitational function. Tonoi The term tonos (pl. tonoi) was used in four senses: "as note, interval, region of the voice, and pitch. We use it of the region of the voice whenever we speak of Dorian, or Phrygian, or Lydian, or any of the other tones". Cleonides attributes thirteen tonoi to Aristoxenus, which represent a progressive transposition of the entire system (or scale) by semitone over the range of an octave between the Hypodorian and the Hypermixolydian. According to Cleonides, Aristoxenus's transpositional tonoi were named analogously to the octave species, supplemented with new terms to raise the number of degrees from seven to thirteen. However, according to the interpretation of at least three modern authorities, in these transpositional tonoi the Hypodorian is the lowest, and the Mixolydian next-to-highest – the reverse of the case of the octave species, with nominal base pitches as follows (descending order): F: Hypermixolydian (or Hyperphrygian) E: High Mixolydian or Hyperiastian E: Low Mixolydian or Hyperdorian D: Lydian C: Low Lydian or Aeolian C: Phrygian B: Low Phrygian or Iastian B: Dorian A: Hypolydian G: Low Hypolydian or Hypoaelion G: Hypophrygian F: Low Hypophrygian or Hypoiastian F: Hypodorian Ptolemy, in his Harmonics, ii.3–11, construed the tonoi differently, presenting all seven octave species within a fixed octave, through chromatic inflection of the scale degrees (comparable to the modern conception of building all seven modal scales on a single tonic). In Ptolemy's system, therefore there are only seven tonoi. Pythagoras also construed the intervals arithmetically (if somewhat more rigorously, initially allowing for 1:1 = Unison, 2:1 = Octave, 3:2 = Fifth, 4:3 = Fourth and 5:4 = Major Third within the octave). In their diatonic genus, these tonoi and corresponding harmoniai correspond with the intervals of the familiar modern major and minor scales. See Pythagorean tuning and Pythagorean interval. Harmoniai In music theory the Greek word harmonia can signify the enharmonic genus of tetrachord, the seven octave species, or a style of music associated with one of the ethnic types or the tonoi named by them. Particularly in the earliest surviving writings, harmonia is regarded not as a scale, but as the epitome of the stylised singing of a particular district or people or occupation. When the late-6th-century poet Lasus of Hermione referred to the Aeolian harmonia, for example, he was more likely thinking of a melodic style characteristic of Greeks speaking the Aeolic dialect than of a scale pattern. By the late 5th century BC, these regional types are being described in terms of differences in what is called harmonia – a word with several senses, but here referring to the pattern of intervals between the notes sounded by the strings of a lyra or a kithara. However, there is no reason to suppose that, at this time, these tuning patterns stood in any straightforward and organised relations to one another. It was only around the year 400 that attempts were made by a group of theorists known as the harmonicists to bring these harmoniai into a single system and to express them as orderly transformations of a single structure. Eratocles was the most prominent of the harmonicists, though his ideas are known only at second hand, through Aristoxenus, from whom we learn they represented the harmoniai as cyclic reorderings of a given series of intervals within the octave, producing seven octave species. We also learn that Eratocles confined his descriptions to the enharmonic genus. In the Republic, Plato uses the term inclusively to encompass a particular type of scale, range and register, characteristic rhythmic pattern, textual subject, etc. He held that playing music in a particular harmonia would incline one towards specific behaviors associated with it, and suggested that soldiers should listen to music in Dorian or Phrygian harmoniai to help make them stronger but avoid music in Lydian, Mixolydian or Ionian harmoniai, for fear of being softened. Plato believed that a change in the musical modes of the state would cause a wide-scale social revolution. The philosophical writings of Plato and Aristotle (c. 350 BC) include sections that describe the effect of different harmoniai on mood and character formation. For example, Aristotle stated in his Politics: Aristotle continues by describing the effects of rhythm, and concludes about the combined effect of rhythm and harmonia (viii:1340b:10–13): The word ethos (ἦθος) in this context means "moral character", and Greek ethos theory concerns the ways that music can convey, foster, and even generate ethical states. Melos Some treatises also describe "melic" composition (μελοποιΐα), "the employment of the materials subject to harmonic practice with due regard to the requirements of each of the subjects under consideration" – which, together with the scales, tonoi, and harmoniai resemble elements found in medieval modal theory. According to Aristides Quintilianus, melic composition is subdivided into three classes: dithyrambic, nomic, and tragic. These parallel his three classes of rhythmic composition: systaltic, diastaltic and hesychastic. Each of these broad classes of melic composition may contain various subclasses, such as erotic, comic and panegyric, and any composition might be elevating (diastaltic), depressing (systaltic), or soothing (hesychastic). According to Mathiesen, music as a performing art was called melos, which in its perfect form (μέλος τέλειον) comprised not only the melody and the text (including its elements of rhythm and diction) but also stylized dance movement. Melic and rhythmic composition (respectively, μελοποιΐα and ῥυθμοποιΐα) were the processes of selecting and applying the various components of melos and rhythm to create a complete work. According to Aristides Quintilianus: Western Church Tonaries, lists of chant titles grouped by mode, appear in western sources around the turn of the 9th century. The influence of developments in Byzantium, from Jerusalem and Damascus, for instance the works of Saints John of Damascus (d. 749) and Cosmas of Maiouma, are still not fully understood. The eight-fold division of the Latin modal system, in a four-by-two matrix, was certainly of Eastern provenance, originating probably in Syria or even in Jerusalem, and was transmitted from Byzantine sources to Carolingian practice and theory during the 8th century. However, the earlier Greek model for the Carolingian system was probably ordered like the later Byzantine oktōēchos, that is, with the four principal (authentic) modes first, then the four plagals, whereas the Latin modes were always grouped the other way, with the authentics and plagals paired. The 6th-century scholar Boethius had translated Greek music theory treatises by Nicomachus and Ptolemy into Latin. Later authors created confusion by applying mode as described by Boethius to explain plainchant modes, which were a wholly different system. In his De institutione musica, book 4 chapter 15, Boethius, like his Hellenistic sources, twice used the term harmonia to describe what would likely correspond to the later notion of "mode", but also used the word "modus" – probably translating the Greek word τρόπος (tropos), which he also rendered as Latin tropus – in connection with the system of transpositions required to produce seven diatonic octave species, so the term was simply a means of describing transposition and had nothing to do with the church modes. Later, 9th-century theorists applied Boethius's terms tropus and modus (along with "tonus") to the system of church modes. The treatise De Musica (or De harmonica institutione) of Hucbald synthesized the three previously disparate strands of modal theory: chant theory, the Byzantine oktōēchos and Boethius's account of Hellenistic theory. The late-9th- and early 10th-century compilation known as the Alia musica imposed the seven octave transpositions, known as tropus and described by Boethius, onto the eight church modes, but its compilator also mentions the Greek (Byzantine) echoi translated by the Latin term sonus. Thus, the names of the modes became associated with the eight church tones and their modal formulas – but this medieval interpretation does not fit the concept of the Ancient Greek harmonics treatises. The modern understanding of mode does not reflect that it is made of different concepts that do not all fit. According to Carolingian theorists the eight church modes, or Gregorian modes, can be divided into four pairs, where each pair shares the "final" note and the four notes above the final, but they have different intervals concerning the species of the fifth. If the octave is completed by adding three notes above the fifth, the mode is termed authentic, but if the octave is completed by adding three notes below, it is called plagal (from Greek πλάγιος, "oblique, sideways"). Otherwise explained: if the melody moves mostly above the final, with an occasional cadence to the sub-final, the mode is authentic. Plagal modes shift range and also explore the fourth below the final as well as the fifth above. In both cases, the strict ambitus of the mode is one octave. A melody that remains confined to the mode's ambitus is called "perfect"; if it falls short of it, "imperfect"; if it exceeds it, "superfluous"; and a melody that combines the ambituses of both the plagal and authentic is said to be in a "mixed mode". Although the earlier (Greek) model for the Carolingian system was probably ordered like the Byzantine oktōēchos, with the four authentic modes first, followed by the four plagals, the earliest extant sources for the Latin system are organized in four pairs of authentic and plagal modes sharing the same final: protus authentic/plagal, deuterus authentic/plagal, tritus authentic/plagal, and tetrardus authentic/plagal. Each mode has, in addition to its final, a "reciting tone", sometimes called the "dominant". It is also sometimes called the "tenor", from Latin tenere "to hold", meaning the tone around which the melody principally centres. The reciting tones of all authentic modes began a fifth above the final, with those of the plagal modes a third above. However, the reciting tones of modes 3, 4, and 8 rose one step during the 10th and 11th centuries with 3 and 8 moving from B to C (half step) and that of 4 moving from G to A (whole step). After the reciting tone, every mode is distinguished by scale degrees called "mediant" and "participant". The mediant is named from its position between the final and reciting tone. In the authentic modes it is the third of the scale, unless that note should happen to be B, in which case C substitutes for it. In the plagal modes, its position is somewhat irregular. The participant is an auxiliary note, generally adjacent to the mediant in authentic modes and, in the plagal forms, coincident with the reciting tone of the corresponding authentic mode (some modes have a second participant). Only one accidental is used commonly in Gregorian chant – B may be lowered by a half-step to B. This usually (but not always) occurs in modes V and VI, as well as in the upper tetrachord of IV, and is optional in other modes except III, VII and VIII. In 1547, the Swiss theorist Henricus Glareanus published the Dodecachordon, in which he solidified the concept of the church modes, and added four additional modes: the Aeolian (mode 9), Hypoaeolian (mode 10), Ionian (mode 11), and Hypoionian (mode 12). A little later in the century, the Italian Gioseffo Zarlino at first adopted Glarean's system in 1558, but later (1571 and 1573) revised the numbering and naming conventions in a manner he deemed more logical, resulting in the widespread promulgation of two conflicting systems. Zarlino's system reassigned the six pairs of authentic–plagal mode numbers to finals in the order of the natural hexachord, C–D–E–F–G–A, and transferred the Greek names as well, so that modes 1 through 8 now became C-authentic to F-plagal, and were now called by the names Dorian to Hypomixolydian. The pair of G modes were numbered 9 and 10 and were named Ionian and Hypoionian, while the pair of A modes retained both the numbers and names (11, Aeolian, and 12 Hypoaeolian) of Glarean's system. While Zarlino's system became popular in France, Italian composers preferred Glarean's scheme because it retained the traditional eight modes, while expanding them. Luzzasco Luzzaschi was an exception in Italy, in that he used Zarlino's new system. In the late-18th and 19th centuries, some chant reformers (notably the editors of the Mechlin, Pustet-Ratisbon (Regensburg), and Rheims-Cambrai Office-Books, collectively referred to as the Cecilian Movement) renumbered the modes once again, this time retaining the original eight mode numbers and Glareanus's modes 9 and 10, but assigning numbers 11 and 12 to the modes on the final B, which they named Locrian and Hypolocrian (even while rejecting their use in chant). The Ionian and Hypoionian modes (on C) become in this system modes 13 and 14. Given the confusion between ancient, medieval, and modern terminology, "today it is more consistent and practical to use the traditional designation of the modes with numbers one to eight", using Roman numeral (I–VIII), rather than using the pseudo-Greek naming system. Medieval terms, first used in Carolingian treatises, later in Aquitanian tonaries, are still used by scholars today: the Greek ordinals ("first", "second", etc.) transliterated into the Latin alphabet protus (πρῶτος), deuterus (δεύτερος), tritus (τρίτος), and tetrardus (τέταρτος). In practice they can be specified as authentic or as plagal like "protus authentus / plagalis". Use A mode indicated a primary pitch (a final), the organization of pitches in relation to the final, the suggested range, the melodic formulas associated with different modes, the location and importance of cadences, and the affect (i.e., emotional effect/character). Liane Curtis writes that "Modes should not be equated with scales: principles of melodic organization, placement of cadences, and emotional affect are essential parts of modal content" in Medieval and Renaissance music. Dahlhaus lists "three factors that form the respective starting points for the modal theories of Aurelian of Réôme, Hermannus Contractus, and Guido of Arezzo": the relation of modal formulas to the comprehensive system of tonal relationships embodied in the diatonic scale the partitioning of the octave into a modal framework the function of the modal final as a relational center. The oldest medieval treatise regarding modes is Musica disciplina by Aurelian of Réôme (dating from around 850) while Hermannus Contractus was the first to define modes as partitionings of the octave. However, the earliest Western source using the system of eight modes is the Tonary of St Riquier, dated between about 795 and 800. Various interpretations of the "character" imparted by the different modes have been suggested. Three such interpretations, from Guido of Arezzo (995–1050), Adam of Fulda (1445–1505), and Juan de Espinosa Medrano (1632–1688), follow: Modern modes Modern Western modes use the same set of notes as the major scale, in the same order, but starting from one of its seven degrees in turn as a tonic, and so present a different sequence of whole and half steps. With the interval sequence of the major scale being W–W–H–W–W–W–H, where "W" means a whole tone (whole step) and "H" means a semitone (half step), it is thus possible to generate the following modes: For the sake of simplicity, the examples shown above are formed by natural notes (also called "white notes", as they can be played using the white keys of a piano keyboard). However, any transposition of each of these scales is a valid example of the corresponding mode. In other words, transposition preserves mode. Although the names of the modern modes are Greek and some have names used in ancient Greek theory for some of the harmoniai, the names of the modern modes are conventional and do not refer to the sequences of intervals found even in the diatonic genus of the Greek octave species sharing the same name. Analysis Each mode has characteristic intervals and chords that give it its distinctive sound. The following is an analysis of each of the seven modern modes. The examples are provided in a key signature with no sharps or flats (scales composed of natural notes). Ionian (I) The Ionian mode is the modern major scale. The example composed of natural notes begins on C, and is also known as the C-major scale: Tonic triad: C major Tonic seventh chord: CM7 Dominant triad: G (in modern tonal thinking, the fifth or dominant scale degree, which in this case is G, is the next-most important chord root after the tonic) Seventh chord on the dominant: G7 (a dominant seventh chord, so-called because of its position in this – and only this – modal scale) Dorian (II) The Dorian mode is the second mode. The example composed of natural notes begins on D: The Dorian mode is very similar to the modern natural minor scale (see Aeolian mode below). The only difference with respect to the natural minor scale is in the sixth scale degree, which is a major sixth (M6) above the tonic, rather than a minor sixth (m6). Tonic triad: Dm Tonic seventh chord: Dm7 Dominant triad: Am Seventh chord on the dominant: Am7 (a minor seventh chord) Phrygian (III) The Phrygian mode is the third mode. The example composed of natural notes starts on E: The Phrygian mode is very similar to the modern natural minor scale (see Aeolian mode below). The only difference with respect to the natural minor scale is in the second scale degree, which is a minor second (m2) above the tonic, rather than a major second (M2). Tonic triad: Em Tonic seventh chord: Em7 Dominant triad: Bdim Seventh chord on the dominant: Bø7 (a half-diminished seventh chord) Lydian (IV) The Lydian mode is the fourth mode. The example composed of natural notes starts on F: The single tone that differentiates this scale from the major scale (Ionian mode) is its fourth degree, which is an augmented fourth (A4) above the tonic (F), rather than a perfect fourth (P4). Tonic triad: F Tonic seventh chord: FM7 Dominant triad: C Seventh chord on the dominant: CM7 (a major seventh chord) Mixolydian (V) The Mixolydian mode is the fifth mode. The example composed of natural notes begins on G: The single tone that differentiates this scale from the major scale (Ionian mode) is its seventh degree, which is a minor seventh (m7) above the tonic (G), rather than a major seventh (M7). Therefore, the seventh scale degree becomes a subtonic to the tonic because it is now a whole tone lower than the tonic, in contrast to the seventh degree in the major scale, which is a semitone tone lower than the tonic (leading-tone). Tonic triad: G Tonic seventh chord: G7 (the dominant seventh chord in this mode is the seventh chord built on the tonic degree) Dominant triad: Dm Seventh chord on the dominant: Dm7 (a minor seventh chord) Aeolian (VI) The Aeolian mode is the sixth mode. It is also called the natural minor scale. The example composed of natural notes begins on A, and is also known as the A natural-minor scale: Tonic triad: Am Tonic seventh chord: Am7 Dominant triad: Em Seventh chord on the dominant: Em7 (a minor seventh chord) Locrian (VII) The Locrian mode is the seventh mode. The example composed of natural notes begins on B: The distinctive scale degree here is the diminished fifth (d5). This makes the tonic triad diminished, so this mode is the only one in which the chords built on the tonic and dominant scale degrees have their roots separated by a diminished, rather than perfect, fifth. Similarly the tonic seventh chord is half-diminished. Tonic triad: Bdim or B° Tonic seventh chord: Bm75 or Bø7 Dominant triad: F Seventh chord on the dominant: FM7 (a major seventh chord) Summary The modes can be arranged in the following sequence, which follows the circle of fifths. In this sequence, each mode has one more lowered interval relative to the tonic than the mode preceding it. Thus, taking Lydian as reference, Ionian (major) has a lowered fourth; Mixolydian, a lowered fourth and seventh; Dorian, a lowered fourth, seventh, and third; Aeolian (natural minor), a lowered fourth, seventh, third, and sixth; Phrygian, a lowered fourth, seventh, third, sixth, and second; and Locrian, a lowered fourth, seventh, third, sixth, second, and fifth. Put another way, the augmented fourth of the Lydian mode has been reduced to a perfect fourth in Ionian, the major seventh in Ionian to a minor seventh in Mixolydian, etc. The first three modes are sometimes called major, the next three minor, and the last one diminished (Locrian), according to the quality of their tonic triads. The Locrian mode is traditionally considered theoretical rather than practical because the triad built on the first scale degree is diminished. Because diminished triads are not consonant they do not lend themselves to cadential endings and cannot be tonicized according to traditional practice. The Ionian mode corresponds to the major scale. Scales in the Lydian mode are major scales with an augmented fourth. The Mixolydian mode corresponds to the major scale with a minor seventh. The Aeolian mode is identical to the natural minor scale. The Dorian mode corresponds to the natural minor scale with a major sixth. The Phrygian mode corresponds to the natural minor scale with a minor second. The Locrian is neither a major nor a minor mode because, although its third scale degree is minor, the fifth degree is diminished instead of perfect. For this reason it is sometimes called a "diminished" scale, though in jazz theory this term is also applied to the octatonic scale. This interval is enharmonically equivalent to the augmented fourth found between scale degrees 1 and 4 in the Lydian mode and is also referred to as the tritone. Use Use and conception of modes or modality today is different from that in early music. As Jim Samson explains, "Clearly any comparison of medieval and modern modality would recognize that the latter takes place against a background of some three centuries of harmonic tonality, permitting, and in the 19th century requiring, a dialogue between modal and diatonic procedure". Indeed, when 19th-century composers revived the modes, they rendered them more strictly than Renaissance composers had, to make their qualities distinct from the prevailing major-minor system. Renaissance composers routinely sharped leading tones at cadences and lowered the fourth in the Lydian mode. The Ionian, or Iastian, mode is another name for the major scale used in much Western music. The Aeolian forms the base of the most common Western minor scale; in modern practice the Aeolian mode is differentiated from the minor by using only the seven notes of the Aeolian mode. By contrast, minor mode compositions of the common practice period frequently raise the seventh scale degree by a semitone to strengthen the cadences, and in conjunction also raise the sixth scale degree by a semitone to avoid the awkward interval of an augmented second. This is particularly true of vocal music. Traditional folk music provides countless examples of modal melodies. For example, Irish traditional music makes extensive usage not only of the major mode, but also the Mixolydian, Dorian, and Aeolian modes. Much Flamenco music is in the Phrygian mode, though frequently with the third and seventh degrees raised by a semitone. Zoltán Kodály, Gustav Holst, and Manuel de Falla use modal elements as modifications of a diatonic background, while modality replaces diatonic tonality in the music of Claude Debussy and Béla Bartók. Other types While the term "mode" is still most commonly understood to refer to Ionian, Dorian, Phrygian, Lydian, Mixolydian, Aeolian, or Locrian modes, in modern music theory the word is often applied to scales other than the diatonic. This is seen, for example, in melodic minor scale harmony, which is based on the seven rotations of the ascending melodic minor scale, yielding some interesting scales as shown below. The "chord" row lists tetrads that can be built from the pitches in the given mode (in jazz notation, the symbol Δ is for a major seventh). The number of possible modes for any intervallic set is dictated by the pattern of intervals in the scale. For scales built of a pattern of intervals that only repeats at the octave (like the diatonic set), the number of modes is equal to the number of notes in the scale. Scales with a recurring interval pattern smaller than an octave, however, have only as many modes as notes within that subdivision: e.g., the diminished scale, which is built of alternating whole and half steps, has only two distinct modes, since all odd-numbered modes are equivalent to the first (starting with a whole step) and all even-numbered modes are equivalent to the second (starting with a half step). The chromatic and whole-tone scales, each containing only steps of uniform size, have only a single mode each, as any rotation of the sequence results in the same sequence. Another general definition excludes these equal-division scales, and defines modal scales as subsets of them: according to Karlheinz Stockhausen, "If we leave out certain steps of a[n equal-step] scale we get a modal construction". In "Messiaen's narrow sense, a mode is any scale made up from the 'chromatic total,' the twelve tones of the tempered system". Analogues in different musical traditions Echos (Byzantine music) Dastgah (Persian traditional music) Maqam (Arabic music) Makam (Arabic, Persian and Turkish classical music) Raga (Indian classical music) Thaat (North Indian or Hindustani music) Melakarta (South Indian or Carnatic music) Pathet (Javanese music for gamelan) Pentatonic scale See also Gamut (music) Jewish prayer modes List of musical scales and modes Modal jazz Znamenny chant References Bibliography . Further reading Brent, Jeff, with Schell Barkley (2011). Modalogy: Scales, Modes & Chords: The Primordial Building Blocks of Music. Milwaukee: Hal Leonard Corporation. Chalmers, John H. (1993). Divisions of the Tetrachord / Peri ton tou tetrakhordou katatomon / Sectiones tetrachordi: A Prolegomenon to the Construction of Musical Scales, edited by Larry Polansky and Carter Scholz, foreword by Lou Harrison. Hanover, New Hampshire: Frog Peak Music. . Fellerer, Karl Gustav (1982). "Kirchenmusikalische Reformbestrebungen um 1800". Analecta Musicologica: Veröffentlichungen der Musikgeschichtlichen Abteilung des Deutschen Historischen Instituts in Rom 21:393–408. Grout, Donald, Claude V. Palisca, and J. Peter Burkholder (2006). A History of Western Music. New York: W. W. Norton. 7th edition. . Jowett, Benjamin (1937). The Dialogues of Plato, translated by Benjamin Jowett, third edition, 2 vols. New York: Random House. Jowett, Benjamin (1943). Aristotle's Politics, translated by Benjamin Jowett. New York: Modern Library. Judd, Cristle (ed) (1998). Tonal Structures in Early Music: Criticism and Analysis of Early Music, 1st ed. New York: Garland. . Levine, Mark (1989). The Jazz Piano Book. Petaluma, California: Sher Music Co. . Lonnendonker, Hans. 1980. "Deutsch-französische Beziehungen in Choralfragen. Ein Beitrag zur Geschichte des gregorianischen Chorals in der zweiten Hälfte des 19. Jahrhunderts". In Ut mens concordet voci: Festschrift Eugène Cardine zum 75. Geburtstag, edited by Johannes Berchmans Göschl, 280–295. St. Ottilien: EOS-Verlag. Mathiesen, Thomas J. (1999). Apollo's Lyre: Greek Music and Music Theory in Antiquity and the Middle Ages. Publications of the Center for the History of Music Theory and Literature 2. Lincoln: University of Nebraska Press. . McAlpine, Fiona (2004). "Beginnings and Endings: Defining the Mode in a Medieval Chant". Studia Musicologica Academiae Scientiarum Hungaricae 45, nos. 1 & 2 (17th International Congress of the International Musicological Society IMS Study Group Cantus Planus): 165–177. (1997). "Mode et système. Conceptions ancienne et moderne de la modalité". Musurgia 4, no. 3:67–80. Meeùs, Nicolas (2000). "Fonctions modales et qualités systémiques". Musicae Scientiae, Forum de discussion 1:55–63. Meier, Bernhard (1974). Die Tonarten der klassischen Vokalpolyphonie: nach den Quellen dargestellt. Utrecht. Meier, Bernhard (1988). The Modes of Classical Vocal Polyphony: Described According to the Sources, translated from the German by Ellen S. Beebe, with revisions by the author. New York: Broude Brothers. Meier, Bernhard (1992). Alte Tonarten: dargestellt an der Instrumentalmusik des 16. und 17. Jahrhunderts. Kassel Miller, Ron (1996). Modal Jazz Composition and Harmony, Vol. 1. Rottenburg, Germany: Advance Music. Ordoulidis, Nikos. (2011). "The Greek Popular Modes". British Postgraduate Musicology 11 (December). (Online journal, accessed 24 December 2011) Pfaff, Maurus (1974). "Die Regensburger Kirchenmusikschule und der cantus gregorianus im 19. und 20. Jahrhundert". Gloria Deo-pax hominibus. Festschrift zum hundertjährigen Bestehen der Kirchenmusikschule Regensburg, Schriftenreihe des Allgemeinen Cäcilien-Verbandes für die Länder der Deutschen Sprache 9, edited by Franz Fleckenstein, 221–252. Bonn: Allgemeiner Cäcilien-Verband, 1974. Powers, Harold (1998). "From Psalmody to Tonality". In Tonal Structures in Early Music, edited by Cristle Collins Judd, 275–340. Garland Reference Library of the Humanities 1998; Criticism and Analysis of Early Music 1. New York: Garland Publishing. . Ruff, Anthony, and Raphael Molitor (2008). "Beyond Medici: The Struggle for Progress in Chant". Sacred Music 135, no. 2 (Summer): 26–44. Scharnagl, August (1994). "Carl Proske (1794–1861)". In Musica divina: Ausstellung zum 400. Todesjahr von Giovanni Pierluigi Palestrina und Orlando di Lasso und zum 200. Geburtsjahr von Carl Proske. Ausstellung in der Bischöflichen Zentralbibliothek Regensburg, 4. November 1994 bis 3. Februar 1995, Bischöfliches Zentralarchiv und Bischöfliche Zentralbibliothek Regensburg: Kataloge und Schriften, no. 11, edited by Paul Mai, 12–52. Regensburg: Schnell und Steiner, 1994. Schnorr, Klemens (2004). "El cambio de la edición oficial del canto gregoriano de la editorial Pustet/Ratisbona a la de Solesmes en la época del Motu proprio". In El Motu proprio de San Pío X y la Música (1903–2003). Barcelona, 2003, edited by Mariano Lambea, introduction by María Rosario Álvarez Martínez and José Sierra Pérez. Revista de musicología 27, no. 1 (June) 197–209. Street, Donald (1976). "The Modes of Limited Transposition". The Musical Times 117, no. 1604 (October): 819–823. Vieru, Anatol (1980). Cartea modurilor. Bucharest: Editura Muzicală. English edition, as The Book of Modes, translated by Yvonne Petrescu and Magda Morait. Bucharest: Editura Muzicală, 1993. Vieru, Anatol (1992). "Generating Modal Sequences (A Remote Approach to Minimal Music)]". Perspectives of New Music 30, no. 2 (Summer): 178–200. Vincent, John (1974). The Diatonic Modes in Modern Music, revised edition. Hollywood: Curlew Music. Wellesz, Egon (1954). "Music of the Eastern Churches". The New Oxford History of Music, vol. 2:14–57. Oxford University Press. Wiering, Frans (1998). "Internal and External Views of the Modes". In Tonal Structures in Early Music, edited by Cristle Collins Judd, 87–107. Garland Reference Library of the Humanities 1998; Criticism and Analysis of Early Music 1. New York: Garland Publishing. . External links All modes mapped out in all positions for 6, 7 and 8 string guitar The use of guitar modes in jazz music Neume Notation Project Division of the Tetrachord, John Chalmers Greek and Liturgical Modes The Ancient Musical Modes: What Were They?, Eric Friedlander MD An interactive demonstration of many scales and modes The Music of Ancient Greeks, an approach to the original singing of the Homeric epics and early Greek epic and lyrical poetry by Ioannidis Nikolaos "Ancient Greek music – 1. History and function, 2. Instruments, 3. Music theory, 4. Extant melos", Thomas Mathiesen, jrank.org Ἀριστοξενου ἁρμονικα στοιχεια: The Harmonics of Aristoxenus, edited with translation notes introduction and index of words by Henry S. Macran. Oxford: Clarendon Press, 1902. Monzo, Joe. 2004. "The Measurement of Aristoxenus's Divisions of the Tetrachord" Melody types Ancient Greek music theory Catholic music

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https://en.wikipedia.org/wiki/Mechanics

Mechanics

Mechanics (Greek: ) is the area of mathematics and physics concerned with the relationships between force, matter, and motion among physical objects. Forces applied to objects result in displacements, or changes of an object's position relative to its environment. Theoretical expositions of this branch of physics has its origins in Ancient Greece, for instance, in the writings of Aristotle and Archimedes (see History of classical mechanics and Timeline of classical mechanics). During the early modern period, scientists such as Galileo, Kepler, Huygens, and Newton laid the foundation for what is now known as classical mechanics. As a branch of classical physics, mechanics deals with bodies that are either at rest or are moving with velocities significantly less than the speed of light. It can also be defined as the physical science that deals with the motion of and forces on bodies not in the quantum realm. History Antiquity The ancient Greek philosophers were among the first to propose that abstract principles govern nature. The main theory of mechanics in antiquity was Aristotelian mechanics, though an alternative theory is exposed in the pseudo-Aristotelian Mechanical Problems, often attributed to one of his successors. There is another tradition that goes back to the ancient Greeks where mathematics is used more extensively to analyze bodies statically or dynamically, an approach that may have been stimulated by prior work of the Pythagorean Archytas. Examples of this tradition include pseudo-Euclid (On the Balance), Archimedes (On the Equilibrium of Planes, On Floating Bodies), Hero (Mechanica), and Pappus (Collection, Book VIII). Medieval age In the Middle Ages, Aristotle's theories were criticized and modified by a number of figures, beginning with John Philoponus in the 6th century. A central problem was that of projectile motion, which was discussed by Hipparchus and Philoponus. Persian Islamic polymath Ibn Sīnā published his theory of motion in The Book of Healing (1020). He said that an impetus is imparted to a projectile by the thrower, and viewed it as persistent, requiring external forces such as air resistance to dissipate it. Ibn Sina made distinction between 'force' and 'inclination' (called "mayl"), and argued that an object gained mayl when the object is in opposition to its natural motion. So he concluded that continuation of motion is attributed to the inclination that is transferred to the object, and that object will be in motion until the mayl is spent. He also claimed that a projectile in a vacuum would not stop unless it is acted upon, consistent with Newton's first law of motion. On the question of a body subject to a constant (uniform) force, the 12th-century Jewish-Arab scholar Hibat Allah Abu'l-Barakat al-Baghdaadi (born Nathanel, Iraqi, of Baghdad) stated that constant force imparts constant acceleration. According to Shlomo Pines, al-Baghdaadi's theory of motion was "the oldest negation of Aristotle's fundamental dynamic law [namely, that a constant force produces a uniform motion], [and is thus an] anticipation in a vague fashion of the fundamental law of classical mechanics [namely, that a force applied continuously produces acceleration]." Influenced by earlier writers such as Ibn Sina and al-Baghdaadi, the 14th-century French priest Jean Buridan developed the theory of impetus, which later developed into the modern theories of inertia, velocity, acceleration and momentum. This work and others was developed in 14th-century England by the Oxford Calculators such as Thomas Bradwardine, who studied and formulated various laws regarding falling bodies. The concept that the main properties of a body are uniformly accelerated motion (as of falling bodies) was worked out by the 14th-century Oxford Calculators. Early modern age Two central figures in the early modern age are Galileo Galilei and Isaac Newton. Galileo's final statement of his mechanics, particularly of falling bodies, is his Two New Sciences (1638). Newton's 1687 Philosophiæ Naturalis Principia Mathematica provided a detailed mathematical account of mechanics, using the newly developed mathematics of calculus and providing the basis of Newtonian mechanics. There is some dispute over priority of various ideas: Newton's Principia is certainly the seminal work and has been tremendously influential, and many of the mathematics results therein could not have been stated earlier without the development of the calculus. However, many of the ideas, particularly as pertain to inertia and falling bodies, had been developed by prior scholars such as Christiaan Huygens and the less-known medieval predecessors. Precise credit is at times difficult or contentious because scientific language and standards of proof changed, so whether medieval statements are equivalent to modern statements or sufficient proof, or instead similar to modern statements and hypotheses is often debatable. Modern age Two main modern developments in mechanics are general relativity of Einstein, and quantum mechanics, both developed in the 20th century based in part on earlier 19th-century ideas. The development in the modern continuum mechanics, particularly in the areas of elasticity, plasticity, fluid dynamics, electrodynamics and thermodynamics of deformable media, started in the second half of the 20th century. Types of mechanical bodies The often-used term body needs to stand for a wide assortment of objects, including particles, projectiles, spacecraft, stars, parts of machinery, parts of solids, parts of fluids (gases and liquids), etc. Other distinctions between the various sub-disciplines of mechanics, concern the nature of the bodies being described. Particles are bodies with little (known) internal structure, treated as mathematical points in classical mechanics. Rigid bodies have size and shape, but retain a simplicity close to that of the particle, adding just a few so-called degrees of freedom, such as orientation in space. Otherwise, bodies may be semi-rigid, i.e. elastic, or non-rigid, i.e. fluid. These subjects have both classical and quantum divisions of study. For instance, the motion of a spacecraft, regarding its orbit and attitude (rotation), is described by the relativistic theory of classical mechanics, while the analogous movements of an atomic nucleus are described by quantum mechanics. Sub-disciplines The following are two lists of various subjects that are studied in mechanics. Note that there is also the "theory of fields" which constitutes a separate discipline in physics, formally treated as distinct from mechanics, whether classical fields or quantum fields. But in actual practice, subjects belonging to mechanics and fields are closely interwoven. Thus, for instance, forces that act on particles are frequently derived from fields (electromagnetic or gravitational), and particles generate fields by acting as sources. In fact, in quantum mechanics, particles themselves are fields, as described theoretically by the wave function. Classical The following are described as forming classical mechanics: Newtonian mechanics, the original theory of motion (kinematics) and forces (dynamics). Analytical mechanics is a reformulation of Newtonian mechanics with an emphasis on system energy, rather than on forces. There are two main branches of analytical mechanics: Hamiltonian mechanics, a theoretical formalism, based on the principle of conservation of energy. Lagrangian mechanics, another theoretical formalism, based on the principle of the least action. Classical statistical mechanics generalizes ordinary classical mechanics to consider systems in an unknown state; often used to derive thermodynamic properties. Celestial mechanics, the motion of bodies in space: planets, comets, stars, galaxies, etc. Astrodynamics, spacecraft navigation, etc. Solid mechanics, elasticity, plasticity, viscoelasticity exhibited by deformable solids. Fracture mechanics Acoustics, sound ( = density variation propagation) in solids, fluids and gases. Statics, semi-rigid bodies in mechanical equilibrium Fluid mechanics, the motion of fluids Soil mechanics, mechanical behavior of soils Continuum mechanics, mechanics of continua (both solid and fluid) Hydraulics, mechanical properties of liquids Fluid statics, liquids in equilibrium Applied mechanics, or Engineering mechanics Biomechanics, solids, fluids, etc. in biology Biophysics, physical processes in living organisms Relativistic or Einsteinian mechanics, universal gravitation. Quantum The following are categorized as being part of quantum mechanics: Schrödinger wave mechanics, used to describe the movements of the wavefunction of a single particle. Matrix mechanics is an alternative formulation that allows considering systems with a finite-dimensional state space. Quantum statistical mechanics generalizes ordinary quantum mechanics to consider systems in an unknown state; often used to derive thermodynamic properties. Particle physics, the motion, structure, and reactions of particles Nuclear physics, the motion, structure, and reactions of nuclei Condensed matter physics, quantum gases, solids, liquids, etc. Historically, classical mechanics had been around for nearly a quarter millennium before quantum mechanics developed. Classical mechanics originated with Isaac Newton's laws of motion in Philosophiæ Naturalis Principia Mathematica, developed over the seventeenth century. Quantum mechanics developed later, over the nineteenth century, precipitated by Planck's postulate and Albert Einstein's explanation of the photoelectric effect. Both fields are commonly held to constitute the most certain knowledge that exists about physical nature. Classical mechanics has especially often been viewed as a model for other so-called exact sciences. Essential in this respect is the extensive use of mathematics in theories, as well as the decisive role played by experiment in generating and testing them. Quantum mechanics is of a bigger scope, as it encompasses classical mechanics as a sub-discipline which applies under certain restricted circumstances. According to the correspondence principle, there is no contradiction or conflict between the two subjects, each simply pertains to specific situations. The correspondence principle states that the behavior of systems described by quantum theories reproduces classical physics in the limit of large quantum numbers, i.e. if quantum mechanics is applied to large systems (for e.g. a baseball), the result would almost be the same if classical mechanics had been applied. Quantum mechanics has superseded classical mechanics at the foundation level and is indispensable for the explanation and prediction of processes at the molecular, atomic, and sub-atomic level. However, for macroscopic processes classical mechanics is able to solve problems which are unmanageably difficult (mainly due to computational limits) in quantum mechanics and hence remains useful and well used. Modern descriptions of such behavior begin with a careful definition of such quantities as displacement (distance moved), time, velocity, acceleration, mass, and force. Until about 400 years ago, however, motion was explained from a very different point of view. For example, following the ideas of Greek philosopher and scientist Aristotle, scientists reasoned that a cannonball falls down because its natural position is in the Earth; the sun, the moon, and the stars travel in circles around the earth because it is the nature of heavenly objects to travel in perfect circles. Often cited as father to modern science, Galileo brought together the ideas of other great thinkers of his time and began to calculate motion in terms of distance travelled from some starting position and the time that it took. He showed that the speed of falling objects increases steadily during the time of their fall. This acceleration is the same for heavy objects as for light ones, provided air friction (air resistance) is discounted. The English mathematician and physicist Isaac Newton improved this analysis by defining force and mass and relating these to acceleration. For objects traveling at speeds close to the speed of light, Newton's laws were superseded by Albert Einstein's theory of relativity. [A sentence illustrating the computational complication of Einstein's theory of relativity.] For atomic and subatomic particles, Newton's laws were superseded by quantum theory. For everyday phenomena, however, Newton's three laws of motion remain the cornerstone of dynamics, which is the study of what causes motion. Relativistic In analogy to the distinction between quantum and classical mechanics, Albert Einstein's general and special theories of relativity have expanded the scope of Newton and Galileo's formulation of mechanics. The differences between relativistic and Newtonian mechanics become significant and even dominant as the velocity of a body approaches the speed of light. For instance, in Newtonian mechanics, the kinetic energy of a free particle is , whereas in relativistic mechanics, it is (where γ is the Lorentz factor; this formula reduces to the Newtonian expression in the low energy limit). For high-energy processes, quantum mechanics must be adjusted to account for special relativity; this has led to the development of quantum field theory. Professional organizations Applied Mechanics Division, American Society of Mechanical Engineers Fluid Dynamics Division, American Physical Society Society for Experimental Mechanics Institution of Mechanical Engineers is the United Kingdom's qualifying body for mechanical engineers and has been the home of Mechanical Engineers for over 150 years. International Union of Theoretical and Applied Mechanics See also Applied mechanics Dynamics Engineering Index of engineering science and mechanics articles Kinematics Kinetics Non-autonomous mechanics Statics Wiesen Test of Mechanical Aptitude (WTMA) References Further reading Robert Stawell Ball (1871) Experimental Mechanics from Google books. External links iMechanica: the web of mechanics and mechanicians Mechanics Definition Mechanics Blog by a Purdue University Professor The Mechanics program at Virginia Tech Physclips: Mechanics with animations and video clips from the University of New South Wales U.S. National Committee on Theoretical and Applied Mechanics Interactive learning resources for teaching Mechanics The Archimedes Project Articles containing video clips

19562

https://en.wikipedia.org/wiki/Mandelbrot%20set

Mandelbrot set

The Mandelbrot set () is the set of complex numbers for which the function does not diverge to infinity when iterated from , i.e., for which the sequence , , etc., remains bounded in absolute value. This set was first defined and drawn by Robert W. Brooks and Peter Matelski in 1978, as part of a study of Kleinian groups. Afterwards, in 1980, Benoit Mandelbrot obtained high quality visualizations of the set while working at IBM's Thomas J. Watson Research Center in Yorktown Heights, New York. Images of the Mandelbrot set exhibit an elaborate and infinitely complicated boundary that reveals progressively ever-finer recursive detail at increasing magnifications; mathematically, one would say that the boundary of the Mandelbrot set is a fractal curve. The "style" of this recursive detail depends on the region of the set boundary being examined. Mandelbrot set images may be created by sampling the complex numbers and testing, for each sample point whether the sequence goes to infinity. Treating the real and imaginary parts of as image coordinates on the complex plane, pixels may then be coloured according to how soon the sequence crosses an arbitrarily chosen threshold (the threshold has to be at least 2, as -2 is the complex number with the largest magnitude within the set, but otherwise the threshold is arbitrary). If is held constant and the initial value of is varied instead, one obtains the corresponding Julia set for the point . The Mandelbrot set has become popular outside mathematics both for its aesthetic appeal and as an example of a complex structure arising from the application of simple rules. It is one of the best-known examples of mathematical visualization, mathematical beauty, and motif. History The Mandelbrot set has its origin in complex dynamics, a field first investigated by the French mathematicians Pierre Fatou and Gaston Julia at the beginning of the 20th century. This fractal was first defined and drawn in 1978 by Robert W. Brooks and Peter Matelski as part of a study of Kleinian groups. On 1 March 1980, at IBM's Thomas J. Watson Research Center in Yorktown Heights, New York, Benoit Mandelbrot first saw a visualization of the set. Mandelbrot studied the parameter space of quadratic polynomials in an article that appeared in 1980. The mathematical study of the Mandelbrot set really began with work by the mathematicians Adrien Douady and John H. Hubbard (1985), who established many of its fundamental properties and named the set in honor of Mandelbrot for his influential work in fractal geometry. The mathematicians Heinz-Otto Peitgen and Peter Richter became well known for promoting the set with photographs, books (1986), and an internationally touring exhibit of the German Goethe-Institut (1985). The cover article of the August 1985 Scientific American introduced a wide audience to the algorithm for computing the Mandelbrot set. The cover was created by Peitgen, Richter and Saupe at the University of Bremen. The Mandelbrot set became prominent in the mid-1980s as a computer graphics demo, when personal computers became powerful enough to plot and display the set in high resolution. The work of Douady and Hubbard coincided with a huge increase in interest in complex dynamics and abstract mathematics, and the study of the Mandelbrot set has been a centerpiece of this field ever since. An exhaustive list of all who have contributed to the understanding of this set since then is long but would include Jean-Christophe Yoccoz, Mitsuhiro Shishikura, Curt McMullen, John Milnor and Mikhail Lyubich. Formal definition The Mandelbrot set is the set of values of c in the complex plane for which the orbit of the critical point under iteration of the quadratic map remains bounded. Thus, a complex number c is a member of the Mandelbrot set if, when starting with and applying the iteration repeatedly, the absolute value of remains bounded for all . For example, for c = 1, the sequence is 0, 1, 2, 5, 26, ..., which tends to infinity, so 1 is not an element of the Mandelbrot set. On the other hand, for , the sequence is 0, −1, 0, −1, 0, ..., which is bounded, so −1 does belong to the set. The Mandelbrot set can also be defined as the connectedness locus of the family of quadratic polynomials, while its boundary can be defined as the bifurcation locus of this quadratic family. Basic properties The Mandelbrot set is a compact set, since it is closed and contained in the closed disk of radius 2 around the origin. More specifically, a point belongs to the Mandelbrot set if and only if for all . In other words, the absolute value of must remain at or below 2 for to be in the Mandelbrot set, , as if that absolute value exceeds 2, the sequence will escape to infinity. Since , it follows that , establishing that will always be in the closed disk of radius 2 around the origin. The intersection of with the real axis is precisely the interval . The parameters along this interval can be put in one-to-one correspondence with those of the real logistic family, The correspondence is given by In fact, this gives a correspondence between the entire parameter space of the logistic family and that of the Mandelbrot set. Douady and Hubbard have shown that the Mandelbrot set is connected. In fact, they constructed an explicit conformal isomorphism between the complement of the Mandelbrot set and the complement of the closed unit disk. Mandelbrot had originally conjectured that the Mandelbrot set is disconnected. This conjecture was based on computer pictures generated by programs that are unable to detect the thin filaments connecting different parts of . Upon further experiments, he revised his conjecture, deciding that should be connected. There also exists a topological proof to the connectedness that was discovered in 2001 by Jeremy Kahn. The dynamical formula for the uniformisation of the complement of the Mandelbrot set, arising from Douady and Hubbard's proof of the connectedness of , gives rise to external rays of the Mandelbrot set. These rays can be used to study the Mandelbrot set in combinatorial terms and form the backbone of the Yoccoz parapuzzle. As mentioned earlier in the article, the boundary of the Mandelbrot set is the bifurcation locus of the family of quadratic polynomials. In other words, the boundary of the Mandelbrot set is the set of all parameters for which the dynamics of the quadratic map exhibits sensitive dependence on i.e., changes abruptly under arbitrarily small changes of It can be constructed as the limit set of a sequence of plane algebraic curves, the Mandelbrot curves, of the general type known as polynomial lemniscates. The Mandelbrot curves are defined by setting , and then interpreting the set of points in the complex plane as a curve in the real Cartesian plane of degree in x and y. Each curve is the mapping of an initial circle of radius 2 under . These algebraic curves appear in images of the Mandelbrot set computed using the "escape time algorithm" mentioned below. Other properties Main cardioid and period bulbs Upon looking at a picture of the Mandelbrot set, one immediately notices the large cardioid region in the center. This main cardioid is the region of parameters for which the map has an attracting fixed point. It consists of all parameters of the form for some in the open unit disk. To the left of the main cardioid, attached to it at the point , a circular bulb called the period-2 bulb is visible. The reason for the name is that the bulb consists of precisely those parameters for which has an attracting cycle of period 2. It is in fact the filled circle of radius 1/4 centered around −1. More generally, for every positive integer , there are circular bulbs tangent to the main cardioid called period-q bulbs (where denotes the Euler Phi Function), which consist of parameters for which has an attracting cycle of period . More specifically, for each primitive th root of unity (where ), there is one period-q bulb called the bulb, which is tangent to the main cardioid at the parameter and which contains parameters with -cycles having combinatorial rotation number . More precisely, the periodic Fatou components containing the attracting cycle all touch at a common point (commonly called the -fixed point). If we label these components in counterclockwise orientation, then maps the component to the component . The change of behavior occurring at is known as a bifurcation: the attracting fixed point "collides" with a repelling period-q cycle. As we pass through the bifurcation parameter into the -bulb, the attracting fixed point turns into a repelling fixed point (the -fixed point), and the period-q cycle becomes attracting. Hyperbolic components All the bulbs we encountered in the previous section were interior components of the Mandelbrot set in which the maps have an attracting periodic cycle. Such components are called hyperbolic components. It is conjectured that these are the only interior regions of . This problem, known as density of hyperbolicity, may be the most important open problem in the field of complex dynamics. Hypothetical non-hyperbolic components of the Mandelbrot set are often referred to as "queer" or ghost components. For real quadratic polynomials, this question was answered positively in the 1990s independently by Lyubich and by Graczyk and Świątek. (Note that hyperbolic components intersecting the real axis correspond exactly to periodic windows in the Feigenbaum diagram. So this result states that such windows exist near every parameter in the diagram.) Not every hyperbolic component can be reached by a sequence of direct bifurcations from the main cardioid of the Mandelbrot set. However, such a component can be reached by a sequence of direct bifurcations from the main cardioid of a little Mandelbrot copy (see below). Each of the hyperbolic components has a center, which is a point c such that the inner Fatou domain for has a super-attracting cycle—that is, that the attraction is infinite (see the image here). This means that the cycle contains the critical point 0, so that 0 is iterated back to itself after some iterations. We therefore have that for some n. If we call this polynomial (letting it depend on c instead of z), we have that and that the degree of is . We can therefore construct the centers of the hyperbolic components by successively solving the equations . The number of new centers produced in each step is given by Sloane's . Local connectivity It is conjectured that the Mandelbrot set is locally connected. This famous conjecture is known as MLC (for Mandelbrot locally connected). By the work of Adrien Douady and John H. Hubbard, this conjecture would result in a simple abstract "pinched disk" model of the Mandelbrot set. In particular, it would imply the important hyperbolicity conjecture mentioned above. The work of Jean-Christophe Yoccoz established local connectivity of the Mandelbrot set at all finitely renormalizable parameters; that is, roughly speaking those contained only in finitely many small Mandelbrot copies. Since then, local connectivity has been proved at many other points of , but the full conjecture is still open. Self-similarity The Mandelbrot set is self-similar under magnification in the neighborhoods of the Misiurewicz points. It is also conjectured to be self-similar around generalized Feigenbaum points (e.g., −1.401155 or −0.1528 + 1.0397i), in the sense of converging to a limit set. The Mandelbrot set in general is not strictly self-similar but it is quasi-self-similar, as small slightly different versions of itself can be found at arbitrarily small scales. These little copies of the Mandelbrot set are all slightly different, mostly because of the thin threads connecting them to the main body of the set. Further results The Hausdorff dimension of the boundary of the Mandelbrot set equals 2 as determined by a result of Mitsuhiro Shishikura. The fact that this is greater (by a whole integer!) than its topological dimension (which is 1) reflects the fractal nature of the Mandelbrot set boundary. In fact, Shishikura's result intuitively states that the Mandelbrot set boundary is so "wiggly" that it manages to locally fill up space as efficiently as a two-dimensional planar region. This opens up the potential possibility that the Mandelbrot set boundary, despite being a curve, has a nonzero area (or, more formally, has a positive planar Lebesgue measure). Whether or not this is actually the case remains an open problem today. In the Blum–Shub–Smale model of real computation, the Mandelbrot set is not computable, but its complement is computably enumerable. However, many simple objects (e.g., the graph of exponentiation) are also not computable in the BSS model. At present, it is unknown whether the Mandelbrot set is computable in models of real computation based on computable analysis, which correspond more closely to the intuitive notion of "plotting the set by a computer". Hertling has shown that the Mandelbrot set is computable in this model if the hyperbolicity conjecture is true. Relationship with Julia sets As a consequence of the definition of the Mandelbrot set, there is a close correspondence between the geometry of the Mandelbrot set at a given point and the structure of the corresponding Julia set. For instance, a point is in the Mandelbrot set exactly when the corresponding Julia set is connected. This principle is exploited in virtually all deep results on the Mandelbrot set. For example, Shishikura proved that, for a dense set of parameters in the boundary of the Mandelbrot set, the Julia set has Hausdorff dimension two, and then transfers this information to the parameter plane. Similarly, Yoccoz first proved the local connectivity of Julia sets, before establishing it for the Mandelbrot set at the corresponding parameters. Adrien Douady eloquently summarizes this principle as: Geometry For every rational number , where p and q are relatively prime, a hyperbolic component of period q bifurcates from the main cardioid. The part of the Mandelbrot set connected to the main cardioid at this bifurcation point is called the p/q-limb. Computer experiments suggest that the diameter of the limb tends to zero like . The best current estimate known is the Yoccoz-inequality, which states that the size tends to zero like . A period-q limb will have "antennae" at the top of its limb. We can thus determine the period of a given bulb by counting these antennas. We can also find the numerator of the rotation number, p, by numbering each antenna counterclockwise from the limb from 1 to and finding which antenna is the shortest. Pi in the Mandelbrot set In an attempt to demonstrate that the thickness of the p/q-limb is zero, David Boll carried out a computer experiment in 1991, where he computed the number of iterations required for the series to diverge for ( being the location thereof). As the series does not diverge for the exact value of , the number of iterations required increases with a small . It turns out that multiplying the value of with the number of iterations required yields an approximation of that becomes better for smaller . For example, for = 0.0000001 the number of iterations is 31415928 and the product is 3.1415928. In 2001, Aaron Klebanoff proved Boll's discovery. Fibonacci sequence in the Mandelbrot set It can be shown that the Fibonacci sequence is located within the Mandelbrot Set and that a relation exists between the main cardioid and the Farey Diagram. Upon mapping the main cardioid to a disk, one can notice that the amount of antennae that extends from the next largest Hyperbolic component, and that is located between the two previously selected components, follows suit with the Fibonacci sequence. The amount of antennae also correlates with the Farey Diagram and the denominator amounts within the corresponding fractional values, of which relate to the distance around the disk. Both portions of these fractional values themselves can be summed together after to produce the location of the next Hyperbolic component within the sequence. Thus, the Fibonacci sequence of 1, 2, 3, 5, 8, 13, and 21 can be found within the Mandelbrot set. Image gallery of a zoom sequence The boundary of the Mandelbrot set shows more intricate detail the closer one looks or magnifies the image, usually called "zooming in". The following example of an image sequence zooming to a selected c value gives an impression of the infinite richness of different geometrical structures present in the Mandelbrot set boundary and explains some of their typical rules. The magnification of the last image relative to the first one is about 1010 to 1. Relating to an ordinary computer monitor, it represents a section of a Mandelbrot set with a diameter of 4 million kilometers. Its border shows an astronomical number of different fractal structures. The seahorse "body" is composed by 25 "spokes" consisting of two groups of 12 "spokes" each and one "spoke" connecting to the main cardioid. These two groups can be attributed by some kind of metamorphosis to the two "fingers" of the "upper hand" of the Mandelbrot set; therefore, the number of "spokes" increases from one "seahorse" to the next by 2; the "hub" is a so-called Misiurewicz point. Between the "upper part of the body" and the "tail" a distorted small copy of the Mandelbrot set called satellite may be recognized. The islands in the third-to-last step seem to consist of infinitely many parts like Cantor sets, as is actually the case for the corresponding Julia set . However, they are connected by tiny structures, so that the whole represents a simply connected set. The tiny structures meet each other at a satellite in the center that is too small to be recognized at this magnification. The value of for the corresponding is not that of the image center but, relative to the main body of the Mandelbrot set, has the same position as the center of this image relative to the satellite shown in the 6th zoom step. Generalizations Multibrot sets Multibrot sets are bounded sets found in the complex plane for members of the general monic univariate polynomial family of recursions For an integer d, these sets are connectedness loci for the Julia sets built from the same formula. The full cubic connectedness locus has also been studied; here one considers the two-parameter recursion , whose two critical points are the complex square roots of the parameter k. A parameter is in the cubic connectedness locus if both critical points are stable. For general families of holomorphic functions, the boundary of the Mandelbrot set generalizes to the bifurcation locus, which is a natural object to study even when the connectedness locus is not useful. The Multibrot set is obtained by varying the value of the exponent d. The article has a video that shows the development from = 0 to 7, at which point there are 6 i.e. lobes around the perimeter. In general, when d is a positive integer, the central region in each of these sets is always an epicycloid of cusps. A similar development with negative integral exponents results in clefts on the inside of a ring, where the main central region of the set is a hypocycloid of cusps. Higher dimensions There is no perfect extension of the Mandelbrot set into 3D. This is because there is no 3D analogue of the complex numbers for it to iterate on. However, there is an extension of the complex numbers into 4 dimensions, called the quaternions, that creates a perfect extension of the Mandelbrot set and the Julia sets into 4 dimensions. These can then be either cross-sectioned or projected into a 3D structure. However, the quaternion (4-dimensional) Mandelbrot set is simply a solid of revolution of the 2-dimensional Mandelbrot set (in the j-k plane), and is therefore largely uninteresting to look at, as it does not have any of the properties that would be expected from a 4-dimensional fractal. Taking a 3-dimensional cross section at results in a solid of revolution of the 2-dimensional Mandelbrot set around the real axis. Other, non-analytic, mappings Of particular interest is the tricorn fractal, the connectedness locus of the anti-holomorphic family The tricorn (also sometimes called the Mandelbar) was encountered by Milnor in his study of parameter slices of real cubic polynomials. It is not locally connected. This property is inherited by the connectedness locus of real cubic polynomials. Another non-analytic generalization is the Burning Ship fractal, which is obtained by iterating the following: Computer drawings There exist a multitude of various algorithms for plotting the Mandelbrot set via a computing device. Here, the most widely used and simplest algorithm will be demonstrated, namely, the naïve "escape time algorithm". In the escape time algorithm, a repeating calculation is performed for each x, y point in the plot area and based on the behavior of that calculation, a color is chosen for that pixel. The x and y locations of each point are used as starting values in a repeating, or iterating calculation (described in detail below). The result of each iteration is used as the starting values for the next. The values are checked during each iteration to see whether they have reached a critical "escape" condition, or "bailout". If that condition is reached, the calculation is stopped, the pixel is drawn, and the next x, y point is examined. The color of each point represents how quickly the values reached the escape point. Often black is used to show values that fail to escape before the iteration limit, and gradually brighter colors are used for points that escape. This gives a visual representation of how many cycles were required before reaching the escape condition. To render such an image, the region of the complex plane we are considering is subdivided into a certain number of pixels. To color any such pixel, let be the midpoint of that pixel. We now iterate the critical point 0 under , checking at each step whether the orbit point has a radius larger than 2. When this is the case, we know that does not belong to the Mandelbrot set, and we color our pixel according to the number of iterations used to find out. Otherwise, we keep iterating up to a fixed number of steps, after which we decide that our parameter is "probably" in the Mandelbrot set, or at least very close to it, and color the pixel black. In pseudocode, this algorithm would look as follows. The algorithm does not use complex numbers and manually simulates complex-number operations using two real numbers, for those who do not have a complex data type. The program may be simplified if the programming language includes complex-data-type operations. for each pixel (Px, Py) on the screen do x0 := scaled x coordinate of pixel (scaled to lie in the Mandelbrot X scale (-2.00, 0.47)) y0 := scaled y coordinate of pixel (scaled to lie in the Mandelbrot Y scale (-1.12, 1.12)) x := 0.0 y := 0.0 iteration := 0 max_iteration := 1000 while (x*x + y*y ≤ 2*2 AND iteration < max_iteration) do xtemp := x*x - y*y + x0 y := 2*x*y + y0 x := xtemp iteration := iteration + 1 color := palette[iteration] plot(Px, Py, color) Here, relating the pseudocode to , and : and so, as can be seen in the pseudocode in the computation of x and y: and To get colorful images of the set, the assignment of a color to each value of the number of executed iterations can be made using one of a variety of functions (linear, exponential, etc.). References in popular culture The Mandelbrot set is considered by many the most popular fractal, and has been referenced several times in popular culture. The Jonathan Coulton song "Mandelbrot Set" is a tribute to both the fractal itself and to the man it is named after, Benoit Mandelbrot. The second book of the Mode series by Piers Anthony, Fractal Mode, describes a world that is a perfect 3D model of the set. The Arthur C. Clarke novel The Ghost from the Grand Banks features an artificial lake made to replicate the shape of the Mandelbrot set. Benoit Mandelbrot and the eponymous set were the subjects of the Google Doodle on 20 November 2020 (the late Benoit Mandelbrot's 96th birthday). The American rock band Heart has an image of a Mandelbrot set on the cover of their 2004 album, Jupiters Darling. The television series Dirk Gently's Holistic Detective Agency (2016) prominently features the Mandelbrot set in connection with the visions of the character Amanda. In the second season, her jacket has a large image of the fractal on the back. See also Buddhabrot Collatz fractal Fractint Gilbreath permutation Mandelbox Mandelbulb Menger Sponge Newton fractal Orbit portrait Orbit trap Pickover stalk Plotting algorithms for the Mandelbrot set References Further reading (First appeared in 1990 as a Stony Brook IMS Preprint, available as arXiV:math.DS/9201272 ) (includes a DVD featuring Arthur C. Clarke and David Gilmour) External links The Mandelbrot Set and Julia Sets by Michael Frame, Benoit Mandelbrot, and Nial Neger Video: Mandelbrot fractal zoom to 6.066 e228 Relatively simple explanation of the mathematical process, by Dr Holly Krieger, MIT Mandelbrot set images online rendering Various algorithms for calculating the Mandelbrot set (on Rosetta Code) Fractal calculator written in Lua by Deyan Dobromiroiv, Sofia, Bulgaria Fractals Articles containing video clips Articles with example pseudocode Complex dynamics

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https://en.wikipedia.org/wiki/Michael%20Mann

Michael Mann

Michael Kenneth Mann (born February 5, 1943) is an American director, screenwriter, and producer of film and television who is best known for his distinctive style of crime drama. His most acclaimed works include the films Thief (1981), Manhunter (1986), The Last of the Mohicans (1992), Heat (1995), The Insider (1999), Collateral (2004), and Public Enemies (2009). He is also known for his role as executive producer on the popular TV series Miami Vice (1984–89), which he adapted into a 2006 feature film. For his work, he has received nominations from international organizations and juries, including the British Academy of Film and Television Arts, Cannes, and the Academy of Motion Picture Arts and Sciences. As a producer, Mann has twice received nominations for the Academy Award for Best Picture, first for The Insider and then The Aviator (2004), which Mann had been hired to direct before the project was transferred to Martin Scorsese. Total Film ranked Mann No. 28 on its 2007 list of the 100 Greatest Directors Ever, and Sight and Sound ranked him No. 5 on their list of the 10 Best Directors of the Last 25 Years (for the years 1977–2002). Early life and education Mann was born February 5, 1943, in Chicago, Illinois. He is the son of Jewish grocers Esther and Jack Mann. Mann studied English literature at the University of Wisconsin–Madison. While a student, he saw Stanley Kubrick's Dr. Strangelove and fell in love with movies. In an L.A. Weekly interview, he described the film's impact on him: Mann graduated from Wisconsin with a B.A. in 1965. In 1967 he earned a M.A. from the London Film School. His daughter Ami Canaan Mann is also a film director and producer. Career Early work Mann later moved to London in the mid 1960s to go to graduate school in cinema. He went on to receive a graduate degree at the London Film School in 1967. He spent seven years in the United Kingdom going to film school and then working on commercials along with contemporaries Alan Parker, Ridley Scott and Adrian Lyne. In 1968, footage he shot of the Paris student revolt for a documentary, Insurrection, aired on NBC's First Tuesday news program and he developed his '68 experiences into the short film Jaunpuri which won the Jury Prize at Cannes in 1970. Mann returned to United States after divorcing his first wife in 1971. He went on to direct a road trip documentary, 17 Days Down the Line. Three years later, Hawaii Five-O veteran Robert Lewin gave Mann a shot and a crash course on television writing and story structure. Mann wrote four episodes of Starsky and Hutch (three in the first series and one in the second) and the pilot episode for Vega$. Around this time, he worked on a show called Police Story with cop-turned-novelist Joseph Wambaugh. Police Story concentrated on the detailed realism of a real cop's life and taught Mann that first-hand research was essential to bring authenticity to his work. Mann also wrote an early draft of the 1978 film Straight Time. 1980s His first feature movie was a television special called The Jericho Mile, which was released theatrically in Europe. It won the Emmy for Outstanding Writing in a Limited Series or a Special in 1979 and the DGA Best Director award. His television work also includes being the executive producer on Miami Vice and Crime Story. Contrary to popular belief, he was not the creator of these shows, but the executive producer and showrunner, produced by his production company. Mann's debut feature in cinema as director was Thief (1981) starring James Caan, a relatively accurate depiction of thieves that operated in New York City and Chicago at that time. Mann used actual former professional burglars to keep the technical scenes as genuine as possible. His next film was The Keep (1983), a supernatural thriller set in Nazi-occupied Romania. Though it was a commercial flop, the film has since attained cult status amongst fans. In 1986, Mann was the first to bring Thomas Harris' character of serial killer Hannibal Lecter to the screen with Manhunter, his adaptation of the novel Red Dragon, which starred Brian Cox as Hannibal. In an interview on the Manhunter DVD, star William Petersen comments that because Mann is so focused on his creations, it takes several years for him to complete a film; Petersen believes that this is why Mann does not make films very often. 1990s Mann gained widespread recognition in 1992 for his film adaptation of James Fenimore Cooper's novel into the epic historical drama The Last of the Mohicans starring Daniel Day-Lewis. The film is set during the French and Indian War. Owen Gleiberman film critic of Entertainment Weekly described Mann's directorial style writing, "Mann, at his best, is a master of violence and lyrical anxiety". Peter Travers of Rolling Stone praised Mann's directing writing, "the action is richly detailed and thrillingly staged." This was followed by crime drama Heat (1995) starring Al Pacino, Robert De Niro, and Val Kilmer. The film, a remake of his TV movie L.A. Takedown, was a critical success with Kenneth Turan of the Los Angeles Times called the film a "sleek, accomplished piece of work, meticulously controlled and completely involving. The dark end of the street doesn't get much more inviting than this." Todd McCarthy of Variety wrote, "Stunningly made and incisively acted by a large and terrific cast, Michael Mann's ambitious study of the relativity of good and evil stands apart from other films of its type by virtue of its extraordinarily rich characterizations and its thoughtful, deeply melancholy take on modern life." In 1999, Mann's film The Insider about the 60 Minutes segment about Jeffrey Wigand, a whistleblower in the tobacco industry. Russell Crowe portrayed Wigand, with Al Pacino playing Lowell Bergman, and Christopher Plummer as Mike Wallace. The film showcased Mann's cinematic style and garnered the most critical recognition of his career up to this point. The Insider was nominated for seven Academy Awards as a result, including a nomination for Mann's direction. Critic Roger Ebert of the Chicago Sun-Times praised the film writing, "The Insider had a greater impact on me than All the President's Men, because you know what? Watergate didn't kill my parents. Cigarettes did." 2000s With his next film, Ali (2001), starring Will Smith, Mann started experimenting with digital cameras. For his action thriller film Collateral, which cast Tom Cruise against type by giving him the role of a hitman, Mann shot all of the exterior scenes digitally so that he could achieve more depth and detail during the night scenes while shooting most of the interiors on film stock. Jamie Foxx was nominated for an Academy Award for his performance in Collateral. In 2004, Mann produced The Aviator, based on the life of Howard Hughes, which he had developed with Leonardo DiCaprio. The Aviator was nominated for an Academy Award for Best Picture but lost to Million Dollar Baby. After Collateral, Mann directed the film adaptation of Miami Vice which he also executive produced. It stars a completely new cast with Colin Farrell as Don Johnson's character Sonny Crockett, and Jamie Foxx filling Philip Michael Thomas' shoes. Mann was producer with Peter Berg as director for The Kingdom and Hancock. Hancock stars Will Smith as a hard-drinking superhero who has fallen out of favor with the public and who begins to have a relationship with the wife (Charlize Theron) of a public relations expert (Jason Bateman), who is helping him to repair his image. Mann also makes a cameo appearance in the film as an executive. In 2009, Mann wrote and directed Public Enemies for Universal Pictures, about the Depression-era crime wave, based on Brian Burrough's nonfiction book, Public Enemies: America's Greatest Crime Wave and the Birth of the FBI, 1933–34. It starred Johnny Depp and Christian Bale. Depp played John Dillinger in the film, and Bale played Melvin Purvis, the FBI agent in charge of capturing Dillinger. Mann signed a petition in support of film director Roman Polanski in 2009, calling for his release after Polanski was arrested in Switzerland in relation to his 1977 charge for drugging and raping a 13-year-old girl. 2010s In January 2010, it was reported by Variety that Mann, alongside David Milch, would serve as co-executive producer of new TV series Luck. The series was an hour-long HBO production, and Mann directed the series' pilot. Although initially renewed for a second season after the airing of the pilot, it was eventually cancelled due to the death of three horses during production. On February 14, 2013, it was announced that Mann had been developing an untitled thriller film with screenwriter Morgan Davis Foehl for over a year, for Legendary Pictures. In May 2013, Mann started filming the action thriller, named Blackhat, in Los Angeles, Kuala Lumpur, Hong Kong and Jakarta. The film, starring Chris Hemsworth as a hacker who gets released from prison to pursue a cyberterrorist across the globe, was released on January 16, 2015 by Universal. It received mixed reviews and was a commercial disaster, although several critics included it in their year-end "best-of" lists. 2020s Mann directed the first episode of the upcoming series Tokyo Vice for HBO Max. In November 2021, Mann announced a Heat prequel/sequel novel would be released in the summer of 2022. It was announced in February 2022 that his upcoming film Ferrari will begin shooting in May that year. Filming style and themes His trademarks include powerfully-lit nighttime scenes and unusual scores, such as Tangerine Dream in Thief and the new-age score to Manhunter. A common stylistic device in several films (Last of the Mohicans, Heat, The Insider, Miami Vice) is to show principal characters being forced to make critical decisions affecting the plot while overlooking large bodies of water. Dante Spinotti is a frequent cinematographer of Mann's films. F.X. Feeney describes Mann's body of work in DGA Quarterly as "abundantly energetic in its precision and variety" and "psychologically layered". Indiewire's 2014 retrospective of the director's filmography focused on the intensity of Mann's ongoing interest in "stories pitting criminals against those who seek to put them behind bars (Heat, Public Enemies, Thief, Collateral, Miami Vice). His films frequently suggest that in fact, at the top of their respective games, crooks and cops are not so dissimilar as men: they each live and die by their own codes and they each recognize themselves in the other." Advertising Mann directed the 2002 "Lucky Star" advertisement for Mercedes-Benz, which took the form of a film trailer for a purported thriller featuring Benicio del Toro. In the fall of 2007, Mann directed two commercials for Nike. The ad campaign "Leave Nothing" features football action scenes with former NFL players Shawne Merriman and Steven Jackson, as well as using the score "Promontory" from the soundtrack of The Last of the Mohicans. Mann also directed the 2008 promotional video for Ferrari's California sports car. Favorite films In 2012, Mann participated in the Sight & Sound film polls of that year. Held every ten years to select the greatest films of all time, contemporary directors were asked to select ten films of their choice. Mann gave the following ten in alphabetical order. Apocalypse Now (1979) directed by Francis Ford Coppola Avatar (2009) directed by James Cameron Battleship Potemkin (1925) directed by Sergei Eisenstein Biutiful (2010) directed by Alejandro González Iñárritu Citizen Kane (1941) directed by Orson Welles Dr. Strangelove (1964) directed by Stanley Kubrick My Darling Clementine (1946) directed by John Ford The Passion of Joan of Arc (1928) directed by Carl Theodor Dreyer Raging Bull (1980) directed by Martin Scorsese The Wild Bunch (1969) directed by Sam Peckinpah Filmography Awards and nominations References Bibliography Wildermuth, Mark E. (2005). Blood in the Moonlight: Michael Mann and Information Age Cinema (Paperback Ed.). Jefferson, North Carolina: McFarland Company and Inc. . F. X. Feeney, Paul Duncan (2006). Michael Mann (Hardcover Ed.) Taschen. . Cadieux, Axel (2015). L'Horizon de Michael Mann, Playlist Society. Jean-Baptiste Thoret, Michael Mann. Mirages du contemporain, Flammarion, 2021. External links Michael Mann on Instagram Senses of Cinema: Great Directors Critical Database Literature on Michael Mann Interviews Entertainment Weekly: Part I Part II L.A. Weekly DGA magazine Salon "Paint It Black" – Sight and Sound 1943 births Alumni of the London Film School Film producers from Illinois Jewish American screenwriters American male screenwriters Television producers from Illinois American television writers American people of Russian-Jewish descent American expatriates in England Filmmakers who won the Best Film BAFTA Award Golden Globe Award-winning producers Film directors from Illinois Living people American male television writers Primetime Emmy Award winners University of Wisconsin–Madison College of Letters and Science alumni Writers from Chicago Action film directors Screenwriters from Illinois 21st-century American Jews

19566

https://en.wikipedia.org/wiki/Main-group%20element

Main-group element

In chemistry and atomic physics, the main group is the group of elements (sometimes called the representative elements) whose lightest members are represented by helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, and fluorine as arranged in the periodic table of the elements. The main group includes the elements (except hydrogen, which is sometimes not included) in groups 1 and 2 (s-block), and groups 13 to 18 (p-block). The s-block elements are primarily characterised by one main oxidation state, and the p-block elements, when they have multiple oxidation states, often have common oxidation states separated by two units. Main-group elements (with some of the lighter transition metals) are the most abundant elements on Earth, in the Solar System, and in the universe. Group 12 elements are often considered to be transition metals; however, zinc (Zn), cadmium (Cd), and mercury (Hg) share some properties of both groups, and many scientists believe they should be included in the main group. Occasionally, even the group 3 elements as well as the lanthanides and actinides have been included, because especially the group 3 elements and lanthanides are electropositive elements with only one main oxidation state like the group 1 and 2 elements. The position of the actinides is more questionable, but the most common and stable of them, thorium (Th) and uranium (U), are similar to main-group elements as thorium is an electropositive element with only one main oxidation state (+4), and uranium has two main ones separated by two oxidation units (+4 and +6). In older nomenclature, the main-group elements are groups IA and IIA, and groups IIIB to 0 (CAS groups IIIA to VIIIA). Group 12 is labelled as group IIB in both systems. Group 3 is labelled as group IIIA in the older nomenclature (CAS group IIIB). References Ralf Steudel, "Chemie der Nichtmetalle" (Chemistry of the nonmetals), 2nd Edition. Walter deGruyter, Berlin 1998. Sets of chemical elements

19567

https://en.wikipedia.org/wiki/Microscopy

Microscopy

Microscopy is the technical field of using microscopes to view objects and areas of objects that cannot be seen with the naked eye (objects that are not within the resolution range of the normal eye). There are three well-known branches of microscopy: optical, electron, and scanning probe microscopy, along with the emerging field of X-ray microscopy. Optical microscopy and electron microscopy involve the diffraction, reflection, or refraction of electromagnetic radiation/electron beams interacting with the specimen, and the collection of the scattered radiation or another signal in order to create an image. This process may be carried out by wide-field irradiation of the sample (for example standard light microscopy and transmission electron microscopy) or by scanning a fine beam over the sample (for example confocal laser scanning microscopy and scanning electron microscopy). Scanning probe microscopy involves the interaction of a scanning probe with the surface of the object of interest. The development of microscopy revolutionized biology, gave rise to the field of histology and so remains an essential technique in the life and physical sciences. X-ray microscopy is three-dimensional and non-destructive, allowing for repeated imaging of the same sample for in situ or 4D studies, and providing the ability to "see inside" the sample being studied before sacrificing it to higher resolution techniques. A 3D X-ray microscope uses the technique of computed tomography (microCT), rotating the sample 360 degrees and reconstructing the images. CT is typically carried out with a flat panel display. A 3D X-ray microscope employs a range of objectives, e.g., from 4X to 40X, and can also include a flat panel. History The field of microscopy (optical microscopy) dates back to at least the 17th-century. Earlier microscopes, single lens magnifying glasses with limited magnification, date at least as far back as the wide spread use of lenses in eyeglasses in the 13th century but more advanced compound microscopes first appeared in Europe around 1620 The earliest practitioners of microscopy include Galileo Galilei, who found in 1610 that he could close focus his telescope to view small objects close up and Cornelis Drebbel, who may have invented the compound microscope around 1620 Antonie van Leeuwenhoek developed a very high magnification simple microscope in the 1670s and is often considered to be the first acknowledged microscopist and microbiologist. Optical microscopy Optical or light microscopy involves passing visible light transmitted through or reflected from the sample through a single lens or multiple lenses to allow a magnified view of the sample. The resulting image can be detected directly by the eye, imaged on a photographic plate, or captured digitally. The single lens with its attachments, or the system of lenses and imaging equipment, along with the appropriate lighting equipment, sample stage, and support, makes up the basic light microscope. The most recent development is the digital microscope, which uses a CCD camera to focus on the exhibit of interest. The image is shown on a computer screen, so eye-pieces are unnecessary. Limitations Limitations of standard optical microscopy (bright field microscopy) lie in three areas; The technique can only image dark or strongly refracting objects effectively. There is a diffraction-limited resolution depending on incident wavelength; in visible range, the resolution of optical microscopy is limited to approximately 0.2  micrometres (see: microscope) and the practical magnification limit to ~1500x. Out-of-focus light from points outside the focal plane reduces image clarity. Live cells in particular generally lack sufficient contrast to be studied successfully, since the internal structures of the cell are colorless and transparent. The most common way to increase contrast is to stain the structures with selective dyes, but this often involves killing and fixing the sample. Staining may also introduce artifacts, which are apparent structural details that are caused by the processing of the specimen and are thus not features of the specimen. In general, these techniques make use of differences in the refractive index of cell structures. Bright-field microscopy is comparable to looking through a glass window: one sees not the glass but merely the dirt on the glass. There is a difference, as glass is a denser material, and this creates a difference in phase of the light passing through. The human eye is not sensitive to this difference in phase, but clever optical solutions have been devised to change this difference in phase into a difference in amplitude (light intensity). Techniques To improve specimen contrast or highlight structures in a sample, special techniques must be used. A huge selection of microscopy techniques are available to increase contrast or label a sample. Bright field Bright field microscopy is the simplest of all the light microscopy techniques. Sample illumination is via transmitted white light, i.e. illuminated from below and observed from above. Limitations include low contrast of most biological samples and low apparent resolution due to the blur of out-of-focus material. The simplicity of the technique and the minimal sample preparation required are significant advantages. Oblique illumination The use of oblique (from the side) illumination gives the image a three-dimensional appearance and can highlight otherwise invisible features. A more recent technique based on this method is Hoffmann's modulation contrast, a system found on inverted microscopes for use in cell culture. Oblique illumination suffers from the same limitations as bright field microscopy (low contrast of many biological samples; low apparent resolution due to out of focus objects). Dark field Dark field microscopy is a technique for improving the contrast of unstained, transparent specimens. Dark field illumination uses a carefully aligned light source to minimize the quantity of directly transmitted (unscattered) light entering the image plane, collecting only the light scattered by the sample. Dark field can dramatically improve image contrast – especially of transparent objects – while requiring little equipment setup or sample preparation. However, the technique suffers from low light intensity in the final image of many biological samples and continues to be affected by low apparent resolution. Rheinberg illumination is a variant of dark field illumination in which transparent, colored filters are inserted just before the condenser so that light rays at high aperture are differently colored than those at low aperture (i.e., the background to the specimen may be blue while the object appears self-luminous red). Other color combinations are possible, but their effectiveness is quite variable. Dispersion staining Dispersion staining is an optical technique that results in a colored image of a colorless object. This is an optical staining technique and requires no stains or dyes to produce a color effect. There are five different microscope configurations used in the broader technique of dispersion staining. They include brightfield Becke line, oblique, darkfield, phase contrast, and objective stop dispersion staining. Phase contrast In electron microscopy: Phase-contrast imaging More sophisticated techniques will show proportional differences in optical density. Phase contrast is a widely used technique that shows differences in refractive index as difference in contrast. It was developed by the Dutch physicist Frits Zernike in the 1930s (for which he was awarded the Nobel Prize in 1953). The nucleus in a cell for example will show up darkly against the surrounding cytoplasm. Contrast is excellent; however it is not for use with thick objects. Frequently, a halo is formed even around small objects, which obscures detail. The system consists of a circular annulus in the condenser, which produces a cone of light. This cone is superimposed on a similar sized ring within the phase-objective. Every objective has a different size ring, so for every objective another condenser setting has to be chosen. The ring in the objective has special optical properties: it, first of all, reduces the direct light in intensity, but more importantly, it creates an artificial phase difference of about a quarter wavelength. As the physical properties of this direct light have changed, interference with the diffracted light occurs, resulting in the phase contrast image. One disadvantage of phase-contrast microscopy is halo formation (halo-light ring). Differential interference contrast Superior and much more expensive is the use of interference contrast. Differences in optical density will show up as differences in relief. A nucleus within a cell will actually show up as a globule in the most often used differential interference contrast system according to Georges Nomarski. However, it has to be kept in mind that this is an optical effect, and the relief does not necessarily resemble the true shape. Contrast is very good and the condenser aperture can be used fully open, thereby reducing the depth of field and maximizing resolution. The system consists of a special prism (Nomarski prism, Wollaston prism) in the condenser that splits light in an ordinary and an extraordinary beam. The spatial difference between the two beams is minimal (less than the maximum resolution of the objective). After passage through the specimen, the beams are reunited by a similar prism in the objective. In a homogeneous specimen, there is no difference between the two beams, and no contrast is being generated. However, near a refractive boundary (say a nucleus within the cytoplasm), the difference between the ordinary and the extraordinary beam will generate a relief in the image. Differential interference contrast requires a polarized light source to function; two polarizing filters have to be fitted in the light path, one below the condenser (the polarizer), and the other above the objective (the analyzer). Note: In cases where the optical design of a microscope produces an appreciable lateral separation of the two beams we have the case of classical interference microscopy, which does not result in relief images, but can nevertheless be used for the quantitative determination of mass-thicknesses of microscopic objects. Interference reflection An additional technique using interference is interference reflection microscopy (also known as reflected interference contrast, or RIC). It relies on cell adhesion to the slide to produce an interference signal. If there is no cell attached to the glass, there will be no interference. Interference reflection microscopy can be obtained by using the same elements used by DIC, but without the prisms. Also, the light that is being detected is reflected and not transmitted as it is when DIC is employed. Fluorescence When certain compounds are illuminated with high energy light, they emit light of a lower frequency. This effect is known as fluorescence. Often specimens show their characteristic autofluorescence image, based on their chemical makeup. This method is of critical importance in the modern life sciences, as it can be extremely sensitive, allowing the detection of single molecules. Many fluorescent dyes can be used to stain structures or chemical compounds. One powerful method is the combination of antibodies coupled to a fluorophore as in immunostaining. Examples of commonly used fluorophores are fluorescein or rhodamine. The antibodies can be tailor-made for a chemical compound. For example, one strategy often in use is the artificial production of proteins, based on the genetic code (DNA). These proteins can then be used to immunize rabbits, forming antibodies which bind to the protein. The antibodies are then coupled chemically to a fluorophore and used to trace the proteins in the cells under study. Highly efficient fluorescent proteins such as the green fluorescent protein (GFP) have been developed using the molecular biology technique of gene fusion, a process that links the expression of the fluorescent compound to that of the target protein. This combined fluorescent protein is, in general, non-toxic to the organism and rarely interferes with the function of the protein under study. Genetically modified cells or organisms directly express the fluorescently tagged proteins, which enables the study of the function of the original protein in vivo. Growth of protein crystals results in both protein and salt crystals. Both are colorless and microscopic. Recovery of the protein crystals requires imaging which can be done by the intrinsic fluorescence of the protein or by using transmission microscopy. Both methods require an ultraviolet microscope as protein absorbs light at 280 nm. Protein will also fluorescence at approximately 353 nm when excited with 280 nm light. Since fluorescence emission differs in wavelength (color) from the excitation light, an ideal fluorescent image shows only the structure of interest that was labeled with the fluorescent dye. This high specificity led to the widespread use of fluorescence light microscopy in biomedical research. Different fluorescent dyes can be used to stain different biological structures, which can then be detected simultaneously, while still being specific due to the individual color of the dye. To block the excitation light from reaching the observer or the detector, filter sets of high quality are needed. These typically consist of an excitation filter selecting the range of excitation wavelengths, a dichroic mirror, and an emission filter blocking the excitation light. Most fluorescence microscopes are operated in the Epi-illumination mode (illumination and detection from one side of the sample) to further decrease the amount of excitation light entering the detector. See also: total internal reflection fluorescence microscope Neuroscience Confocal Confocal laser scanning microscopy uses a focused laser beam (e.g. 488 nm) that is scanned across the sample to excite fluorescence in a point-by-point fashion. The emitted light is directed through a pinhole to prevent out-of-focus light from reaching the detector, typically a photomultiplier tube. The image is constructed in a computer, plotting the measured fluorescence intensities according to the position of the excitation laser. Compared to full sample illumination, confocal microscopy gives slightly higher lateral resolution and significantly improves optical sectioning (axial resolution). Confocal microscopy is, therefore, commonly used where 3D structure is important. A subclass of confocal microscopes are spinning disc microscopes which are able to scan multiple points simultaneously across the sample. A corresponding disc with pinholes rejects out-of-focus light. The light detector in a spinning disc microscope is a digital camera, typically EM-CCD or sCMOS. Two-photon microscopy A two-photon microscope is also a laser-scanning microscope, but instead of UV, blue or green laser light, a pulsed infrared laser is used for excitation. Only in the tiny focus of the laser is the intensity high enough to generate fluorescence by two-photon excitation, which means that no out-of-focus fluorescence is generated, and no pinhole is necessary to clean up the image. This allows imaging deep in scattering tissue, where a confocal microscope would not be able to collect photons efficiently. Two-photon microscopes with wide-field detection are frequently used for functional imaging, e.g. calcium imaging, in brain tissue. They are marketed as Multiphoton microscopes by several companies, although the gains of using 3-photon instead of 2-photon excitation are marginal. Single plane illumination microscopy and light sheet fluorescence microscopy Using a plane of light formed by focusing light through a cylindrical lens at a narrow angle or by scanning a line of light in a plane perpendicular to the axis of objective, high resolution optical sections can be taken. Single plane illumination, or light sheet illumination, is also accomplished using beam shaping techniques incorporating multiple-prism beam expanders. The images are captured by CCDs. These variants allow very fast and high signal to noise ratio image capture. Wide-field multiphoton microscopy Wide-field multiphoton microscopy refers to an optical non-linear imaging technique in which a large area of the object is illuminated and imaged without the need for scanning. High intensities are required to induce non-linear optical processes such as two-photon fluorescence or second harmonic generation. In scanning multiphoton microscopes the high intensities are achieved by tightly focusing the light, and the image is obtained by beam scanning. In wide-field multiphoton microscopy the high intensities are best achieved using an optically amplified pulsed laser source to attain a large field of view (~100 µm). The image in this case is obtained as a single frame with a CCD camera without the need of scanning, making the technique particularly useful to visualize dynamic processes simultaneously across the object of interest. With wide-field multiphoton microscopy the frame rate can be increased up to a 1000-fold compared to multiphoton scanning microscopy. In scattering tissue, however, image quality rapidly degrades with increasing depth. Deconvolution Fluorescence microscopy is a powerful technique to show specifically labeled structures within a complex environment and to provide three-dimensional information of biological structures. However, this information is blurred by the fact that, upon illumination, all fluorescently labeled structures emit light, irrespective of whether they are in focus or not. So an image of a certain structure is always blurred by the contribution of light from structures that are out of focus. This phenomenon results in a loss of contrast especially when using objectives with a high resolving power, typically oil immersion objectives with a high numerical aperture. However, blurring is not caused by random processes, such as light scattering, but can be well defined by the optical properties of the image formation in the microscope imaging system. If one considers a small fluorescent light source (essentially a bright spot), light coming from this spot spreads out further from our perspective as the spot becomes more out of focus. Under ideal conditions, this produces an "hourglass" shape of this point source in the third (axial) dimension. This shape is called the point spread function (PSF) of the microscope imaging system. Since any fluorescence image is made up of a large number of such small fluorescent light sources, the image is said to be "convolved by the point spread function". The mathematically modeled PSF of a terahertz laser pulsed imaging system is shown on the right. The output of an imaging system can be described using the equation: Where is the additive noise. Knowing this point spread function means that it is possible to reverse this process to a certain extent by computer-based methods commonly known as deconvolution microscopy. There are various algorithms available for 2D or 3D deconvolution. They can be roughly classified in nonrestorative and restorative methods. While the nonrestorative methods can improve contrast by removing out-of-focus light from focal planes, only the restorative methods can actually reassign light to its proper place of origin. Processing fluorescent images in this manner can be an advantage over directly acquiring images without out-of-focus light, such as images from confocal microscopy, because light signals otherwise eliminated become useful information. For 3D deconvolution, one typically provides a series of images taken from different focal planes (called a Z-stack) plus the knowledge of the PSF, which can be derived either experimentally or theoretically from knowing all contributing parameters of the microscope. Sub-diffraction techniques A multitude of super-resolution microscopy techniques have been developed in recent times which circumvent the diffraction limit. This is mostly achieved by imaging a sufficiently static sample multiple times and either modifying the excitation light or observing stochastic changes in the image. The deconvolution methods described in the previous section, which removes the PSF induced blur and assigns a mathematically 'correct' origin of light, are used, albeit with slightly different understanding of what the value of a pixel mean. Assuming most of the time, one single fluorophore contributes to one single blob on one single taken image, the blobs in the images can be replaced with their calculated position, vastly improving resolution to well below the diffraction limit. To realize such assumption, Knowledge of and chemical control over fluorophore photophysics is at the core of these techniques, by which resolutions of ~20 nanometers are obtained. Serial time-encoded amplified microscopy Serial time encoded amplified microscopy (STEAM) is an imaging method that provides ultrafast shutter speed and frame rate, by using optical image amplification to circumvent the fundamental trade-off between sensitivity and speed, and a single-pixel photodetector to eliminate the need for a detector array and readout time limitations The method is at least 1000 times faster than the state-of-the-art CCD and CMOS cameras. Consequently, it is potentially useful for scientific, industrial, and biomedical applications that require high image acquisition rates, including real-time diagnosis and evaluation of shockwaves, microfluidics, MEMS, and laser surgery. Extensions Most modern instruments provide simple solutions for micro-photography and image recording electronically. However such capabilities are not always present and the more experienced microscopist may prefer a hand drawn image to a photograph. This is because a microscopist with knowledge of the subject can accurately convert a three-dimensional image into a precise two-dimensional drawing. In a photograph or other image capture system however, only one thin plane is ever in good focus. The creation of accurate micrographs requires a microscopical technique using a monocular eyepiece. It is essential that both eyes are open and that the eye that is not observing down the microscope is instead concentrated on a sheet of paper on the bench besides the microscope. With practice, and without moving the head or eyes, it is possible to accurately trace the observed shapes by simultaneously "seeing" the pencil point in the microscopical image. It is always less tiring to observe with the microscope focused so that the image is seen at infinity and with both eyes open at all times. Other enhancements Microspectroscopy:spectroscopy with a microscope X-ray As resolution depends on the wavelength of the light. Electron microscopy has been developed since the 1930s that use electron beams instead of light. Because of the much smaller wavelength of the electron beam, resolution is far higher. Though less common, X-ray microscopy has also been developed since the late 1940s. The resolution of X-ray microscopy lies between that of light microscopy and electron microscopy. Electron microscopy Until the invention of sub-diffraction microscopy, the wavelength of the light limited the resolution of traditional microscopy to around 0.2 micrometers. In order to gain higher resolution, the use of an electron beam with a far smaller wavelength is used in electron microscopes. Transmission electron microscopy (TEM) is quite similar to the compound light microscope, by sending an electron beam through a very thin slice of the specimen. The resolution limit in 2005 was around 0.05 nanometer and has not increased appreciably since that time. Scanning electron microscopy (SEM) visualizes details on the surfaces of specimens and gives a very nice 3D view. It gives results much like those of the stereo light microscope. The best resolution for SEM in 2011 was 0.4 nanometer. Electron microscopes equipped for X-ray spectroscopy can provide qualitative and quantitative elemental analysis. This type of electron microscope, also known as analytical electron microscope, can be a very powerful tool for investigation of nanomaterials. Scanning probe microscopy This is a sub-diffraction technique. Examples of scanning probe microscopes are the atomic force microscope (AFM), the Scanning tunneling microscope, the photonic force microscope and the recurrence tracking microscope. All such methods use the physical contact of a solid probe tip to scan the surface of an object, which is supposed to be almost flat. Ultrasonic force Ultrasonic force microscopy (UFM) has been developed in order to improve the details and image contrast on "flat" areas of interest where AFM images are limited in contrast. The combination of AFM-UFM allows a near field acoustic microscopic image to be generated. The AFM tip is used to detect the ultrasonic waves and overcomes the limitation of wavelength that occurs in acoustic microscopy. By using the elastic changes under the AFM tip, an image of much greater detail than the AFM topography can be generated. Ultrasonic force microscopy allows the local mapping of elasticity in atomic force microscopy by the application of ultrasonic vibration to the cantilever or sample. To analyze the results of ultrasonic force microscopy in a quantitative fashion, a force-distance curve measurement is done with ultrasonic vibration applied to the cantilever base, and the results are compared with a model of the cantilever dynamics and tip-sample interaction based on the finite-difference technique. Ultraviolet microscopy Ultraviolet microscopes have two main purposes. The first is to utilize the shorter wavelength of ultraviolet electromagnetic energy to improve the image resolution beyond that of the diffraction limit of standard optical microscopes. This technique is used for non-destructive inspection of devices with very small features such as those found in modern semiconductors. The second application for UV microscopes is contrast enhancement where the response of individual samples is enhanced, relative to their surrounding, due to the interaction of light with the molecules within the sample itself. One example is in the growth of protein crystals. Protein crystals are formed in salt solutions. As salt and protein crystals are both formed in the growth process, and both are commonly transparent to the human eye, they cannot be differentiated with a standard optical microscope. As the tryptophan of protein absorbs light at 280 nm, imaging with a UV microscope with 280 nm bandpass filters makes it simple to differentiate between the two types of crystals. The protein crystals appear dark while the salt crystals are transparent. Infrared microscopy The term infrared microscopy refers to microscopy performed at infrared wavelengths. In the typical instrument configuration, a Fourier Transform Infrared Spectrometer (FTIR) is combined with an optical microscope and an infrared detector. The infrared detector can be a single point detector, a linear array or a 2D focal plane array. FTIR provides the ability to perform chemical analysis via infrared spectroscopy and the microscope and point or array detector enable this chemical analysis to be spatially resolved, i.e. performed at different regions of the sample. As such, the technique is also called infrared microspectroscopy An alternative architecture called Laser Direct Infrared (LDIR) Imaging involves the combination of a tuneable infrared light source and single point detector on a flying objective). This technique is frequently used for infrared chemical imaging, where the image contrast is determined by the response of individual sample regions to particular IR wavelengths selected by the user, usually specific IR absorption bands and associated molecular resonances. A key limitation of conventional infrared microspectroscopy is that the spatial resolution is diffraction-limited. Specifically the spatial resolution is limited to a figure related to the wavelength of the light. For practical IR microscopes, the spatial resolution is limited to 1-3x the wavelength, depending on the specific technique and instrument used. For mid-IR wavelengths, this sets a practical spatial resolution limit of ~3-30 μm. IR versions of sub-diffraction microscopy also exist. These include IR Near-field scanning optical microscope (NSOM), photothermal microspectroscopy and atomic force microscope based infrared spectroscopy (AFM-IR), as well as scattering-type Scanning Near-field Optical Microscopy (s-SNOM) & nano-FTIR that provide nanoscale spatial resolution at IR wavelengths. Digital holographic microscopy In digital holographic microscopy (DHM), interfering wave fronts from a coherent (monochromatic) light-source are recorded on a sensor. The image is digitally reconstructed by a computer from the recorded hologram. Besides the ordinary bright field image, a phase shift image is created. DHM can operate both in reflection and transmission mode. In reflection mode, the phase shift image provides a relative distance measurement and thus represents a topography map of the reflecting surface. In transmission mode, the phase shift image provides a label-free quantitative measurement of the optical thickness of the specimen. Phase shift images of biological cells are very similar to images of stained cells and have successfully been analyzed by high content analysis software. A unique feature of DHM is the ability to adjust focus after the image is recorded, since all focus planes are recorded simultaneously by the hologram. This feature makes it possible to image moving particles in a volume or to rapidly scan a surface. Another attractive feature is The ability of DHM to use low cost optics by correcting optical aberrations by software. Digital pathology (virtual microscopy) Digital pathology is an image-based information environment enabled by computer technology that allows for the management of information generated from a digital slide. Digital pathology is enabled in part by virtual microscopy, which is the practice of converting glass slides into digital slides that can be viewed, managed, and analyzed. Laser microscopy Laser microscopy is a rapidly growing field that uses laser illumination sources in various forms of microscopy. For instance, laser microscopy focused on biological applications uses ultrashort pulse lasers, in a number of techniques labeled as nonlinear microscopy, saturation microscopy, and two-photon excitation microscopy. High-intensity, short-pulse laboratory x-ray lasers have been under development for several years. When this technology comes to fruition, it will be possible to obtain magnified three-dimensional images of elementary biological structures in the living state at a precisely defined instant. For optimum contrast between water and protein and for best sensitivity and resolution, the laser should be tuned near the nitrogen line at about 0.3 nanometers. Resolution will be limited mainly by the hydrodynamic expansion that occurs while the necessary number of photons is being registered. Thus, while the specimen is destroyed by the exposure, its configuration can be captured before it explodes. Scientists have been working on practical designs and prototypes for x-ray holographic microscopes, despite the prolonged development of the appropriate laser. Photoacoustic microscopy A microscopy technique relying on the photoacoustic effect, i.e. the generation of (ultra)sound caused by light absorption. A focused and intensity modulated laser beam is raster scanned over a sample. The generated (ultra)sound is detected via an ultrasound transducer. Commonly piezoelectric ultrasound transducers are employed. The image contrast is related to the sample's absorption coefficient . This is in contrast to bright or dark field microscopy, where the image contrast is due to transmittance or scattering. In principle, the contrast of fluorescence microscopy is proportional to the sample's absorption too. However, in fluorescence microscopy the fluorescence quantum yield needs to be unequal to zero in order that a signal can be detected. In photoacoustic microscopy, however, every absorbing substance gives a photoacoustic signal which is proportional to Here is the Grüneisen coefficient, is the laser's photon energy and is the sample's band gap energy. Therefore, photoacoustic microscopy seems well suited as a complementary technique to fluorescence microscopy, as a high fluorescence quantum yield leads to high fluorescence signals and a low fluorescence quantum yield leads to high photoacoustic signals. Neglecting non-linear effects, the lateral resolution is limited by the Abbe diffraction limit: where is the wavelength of the excitation laser and is the numerical aperture of the objective lens. The Abbe diffraction limit holds if the incoming wave front is parallel. In reality, however, the laser beam profile is Gaussian. Therefore, in order to the calculate the achievable resolution, formulas for truncated Gaussian beams have to be used. Amateur microscopy Amateur Microscopy is the investigation and observation of biological and non-biological specimens for recreational purposes. Collectors of minerals, insects, seashells, and plants may use microscopes as tools to uncover features that help them classify their collected items. Other amateurs may be interested in observing the life found in pond water and of other samples. Microscopes may also prove useful for the water quality assessment for people that keep a home aquarium. Photographic documentation and drawing of the microscopic images are additional pleasures. There are competitions for photomicrograph art. Participants of this pastime may use commercially prepared microscopic slides or prepare their own slides. While microscopy is a central tool in the documentation of biological specimens, it is often insufficient to justify the description of a new species based on microscopic investigations alone. Often genetic and biochemical tests are necessary to confirm the discovery of a new species. A laboratory and access to academic literature is a necessity. There is, however, one advantage that amateurs have above professionals: time to explore their surroundings. Often, advanced amateurs team up with professionals to validate their findings and possibly describe new species. In the late 1800s, amateur microscopy became a popular hobby in the United States and Europe. Several 'professional amateurs' were being paid for their sampling trips and microscopic explorations by philanthropists, to keep them amused on the Sunday afternoon (e.g., the diatom specialist A. Grunow, being paid by (among others) a Belgian industrialist). Professor John Phin published "Practical Hints on the Selection and Use of the Microscope (Second Edition, 1878)," and was also the editor of the "American Journal of Microscopy." Examples of amateur microscopy images: Application in forensic science Microscopy has applications in the forensic sciences. The microscope can detect, resolve and image the smallest items of evidence, often without any alteration or destruction. The microscope is used to identify and compare fibers, hairs, soils, and dust...etc. In ink markings, blood stains or bullets, no specimen treatment is required and the evidence shows directly from microscopical examination. For traces of particular matter, the sample preparation must be done before microscopical examination occurs. Light microscopes are the most use in forensics, using photons to form images4, microscopes which are most applicable for examining forensic specimens are as follows: 1. The compound microscope 2. The comparison microscope 3. The stereoscopic microscope 4. The polarizing microscope 5. The micro spectrophotometer This diversity of the types of microscopes in forensic applications comes mainly from their magnification ranges, which are (1- 1200X), (50 -30,000X) and (500- 250,000X) for the optical microscopy, SEM and TEM respectively. See also References Further reading Theoretical basis of super resolution 4Pi microscopy & design of a confocal laser scanning fluorescence microscope , a feature article on sub-diffraction microscopy from the March 1, 2007 issue of Analytical Chemistry External links General Microscopy glossary, Common terms used in amateur light microscopy. Nikon MicroscopyU Extensive information on light microscopy Olympus Microscopy Microscopy Resource center Carl Zeiss "Microscopy from the very beginning", a step by step tutorial into the basics of microscopy. Microscopy in Detail - A resource with many illustrations elaborating the most common microscopy techniques Manawatu Microscopy - first known collaboration environment for Microscopy and Image Analysis. Audio microscope glossary Techniques Ratio-metric Imaging Applications For Microscopes Examples of Ratiometric Imaging Work on a Microscope Interactive Fluorescence Dye and Filter Database Carl Zeiss Interactive Fluorescence Dye and Filter Database. New approaches to microscopy Eric Betzig: Beyond the Nobel Prize—New approaches to microscopy. Microbiology techniques Laboratory techniques Antonie van Leeuwenhoek Science and technology in the Dutch Republic Dutch inventions 17th century in science Cell imaging Laboratory equipment Optical microscopy

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https://en.wikipedia.org/wiki/Microscope

Microscope

A microscope () is a laboratory instrument used to examine objects that are too small to be seen by the naked eye. Microscopy is the science of investigating small objects and structures using a microscope. Microscopic means being invisible to the eye unless aided by a microscope. There are many types of microscopes, and they may be grouped in different ways. One way is to describe the method an instrument uses to interact with a sample and produce images, either by sending a beam of light or electrons through a sample in its optical path, by detecting photon emissions from a sample, or by scanning across and a short distance from the surface of a sample using a probe. The most common microscope (and the first to be invented) is the optical microscope, which uses lenses to refract visible light that passed through a thinly sectioned sample to produce an observable image. Other major types of microscopes are the fluorescence microscope, electron microscope (both the transmission electron microscope and the scanning electron microscope) and various types of scanning probe microscopes. History Although objects resembling lenses date back 4,000 years and there are Greek accounts of the optical properties of water-filled spheres (5th century BC) followed by many centuries of writings on optics, the earliest known use of simple microscopes (magnifying glasses) dates back to the widespread use of lenses in eyeglasses in the 13th century. The earliest known examples of compound microscopes, which combine an objective lens near the specimen with an eyepiece to view a real image, appeared in Europe around 1620. The inventor is unknown, even though many claims have been made over the years. Several revolve around the spectacle-making centers in the Netherlands, including claims it was invented in 1590 by Zacharias Janssen (claim made by his son) or Zacharias' father, Hans Martens, or both, claims it was invented by their neighbor and rival spectacle maker, Hans Lippershey (who applied for the first telescope patent in 1608), and claims it was invented by expatriate Cornelis Drebbel, who was noted to have a version in London in 1619. Galileo Galilei (also sometimes cited as compound microscope inventor) seems to have found after 1610 that he could close focus his telescope to view small objects and, after seeing a compound microscope built by Drebbel exhibited in Rome in 1624, built his own improved version. Giovanni Faber coined the name microscope for the compound microscope Galileo submitted to the Accademia dei Lincei in 1625 (Galileo had called it the occhiolino 'little eye'). Rise of modern light microscopes The first detailed account of the microscopic anatomy of organic tissue based on the use of a microscope did not appear until 1644, in Giambattista Odierna's L'occhio della mosca, or The Fly's Eye. The microscope was still largely a novelty until the 1660s and 1670s when naturalists in Italy, the Netherlands and England began using them to study biology. Italian scientist Marcello Malpighi, called the father of histology by some historians of biology, began his analysis of biological structures with the lungs. The publication in 1665 of Robert Hooke's Micrographia had a huge impact, largely because of its impressive illustrations. A significant contribution came from Antonie van Leeuwenhoek who achieved up to 300 times magnification using a simple single lens microscope. He sandwiched a very small glass ball lens between the holes in two metal plates riveted together, and with an adjustable-by-screws needle attached to mount the specimen. Then, Van Leeuwenhoek re-discovered red blood cells (after Jan Swammerdam) and spermatozoa, and helped popularise the use of microscopes to view biological ultrastructure. On 9 October 1676, van Leeuwenhoek reported the discovery of micro-organisms. The performance of a light microscope depends on the quality and correct use of the condensor lens system to focus light on the specimen and the objective lens to capture the light from the specimen and form an image. Early instruments were limited until this principle was fully appreciated and developed from the late 19th to very early 20th century, and until electric lamps were available as light sources. In 1893 August Köhler developed a key principle of sample illumination, Köhler illumination, which is central to achieving the theoretical limits of resolution for the light microscope. This method of sample illumination produces even lighting and overcomes the limited contrast and resolution imposed by early techniques of sample illumination. Further developments in sample illumination came from the discovery of phase contrast by Frits Zernike in 1953, and differential interference contrast illumination by Georges Nomarski in 1955; both of which allow imaging of unstained, transparent samples. Electron microscopes In the early 20th century a significant alternative to the light microscope was developed, an instrument that uses a beam of electrons rather than light to generate an image. The German physicist, Ernst Ruska, working with electrical engineer Max Knoll, developed the first prototype electron microscope in 1931, a transmission electron microscope (TEM). The transmission electron microscope works on similar principles to an optical microscope but uses electrons in the place of light and electromagnets in the place of glass lenses. Use of electrons, instead of light, allows for much higher resolution. Development of the transmission electron microscope was quickly followed in 1935 by the development of the scanning electron microscope by Max Knoll. Although TEMs were being used for research before WWII, and became popular afterwards, the SEM was not commercially available until 1965. Transmission electron microscopes became popular following the Second World War. Ernst Ruska, working at Siemens, developed the first commercial transmission electron microscope and, in the 1950s, major scientific conferences on electron microscopy started being held. In 1965, the first commercial scanning electron microscope was developed by Professor Sir Charles Oatley and his postgraduate student Gary Stewart, and marketed by the Cambridge Instrument Company as the "Stereoscan". One of the latest discoveries made about using an electron microscope is the ability to identify a virus. Since this microscope produces a visible, clear image of small organelles, in an electron microscope there is no need for reagents to see the virus or harmful cells, resulting in a more efficient way to detect pathogens. Scanning probe microscopes From 1981 to 1983 Gerd Binnig and Heinrich Rohrer worked at IBM in Zurich, Switzerland to study the quantum tunnelling phenomenon. They created a practical instrument, a scanning probe microscope from quantum tunnelling theory, that read very small forces exchanged between a probe and the surface of a sample. The probe approaches the surface so closely that electrons can flow continuously between probe and sample, making a current from surface to probe. The microscope was not initially well received due to the complex nature of the underlying theoretical explanations. In 1984 Jerry Tersoff and D.R. Hamann, while at AT&T's Bell Laboratories in Murray Hill, New Jersey began publishing articles that tied theory to the experimental results obtained by the instrument. This was closely followed in 1985 with functioning commercial instruments, and in 1986 with Gerd Binnig, Quate, and Gerber's invention of the atomic force microscope, then Binnig's and Rohrer's Nobel Prize in Physics for the SPM. New types of scanning probe microscope have continued to be developed as the ability to machine ultra-fine probes and tips has advanced. Fluorescence microscopes The most recent developments in light microscope largely centre on the rise of fluorescence microscopy in biology. During the last decades of the 20th century, particularly in the post-genomic era, many techniques for fluorescent staining of cellular structures were developed. The main groups of techniques involve targeted chemical staining of particular cell structures, for example, the chemical compound DAPI to label DNA, use of antibodies conjugated to fluorescent reporters, see immunofluorescence, and fluorescent proteins, such as green fluorescent protein. These techniques use these different fluorophores for analysis of cell structure at a molecular level in both live and fixed samples. The rise of fluorescence microscopy drove the development of a major modern microscope design, the confocal microscope. The principle was patented in 1957 by Marvin Minsky, although laser technology limited practical application of the technique. It was not until 1978 when Thomas and Christoph Cremer developed the first practical confocal laser scanning microscope and the technique rapidly gained popularity through the 1980s. Super resolution microscopes Much current research (in the early 21st century) on optical microscope techniques is focused on development of superresolution analysis of fluorescently labelled samples. Structured illumination can improve resolution by around two to four times and techniques like stimulated emission depletion (STED) microscopy are approaching the resolution of electron microscopes. This occurs because the diffraction limit is occurred from light or excitation, which makes the resolution must be doubled to become super saturated. Stefan Hell was awarded the 2014 Nobel Prize in Chemistry for the development of the STED technique, along with Eric Betzig and William Moerner who adapted fluorescence microscopy for single-molecule visualization. X-ray microscopes X-ray microscopes are instruments that use electromagnetic radiation usually in the soft X-ray band to image objects. Technological advances in X-ray lens optics in the early 1970s made the instrument a viable imaging choice. They are often used in tomography (see micro-computed tomography) to produce three dimensional images of objects, including biological materials that have not been chemically fixed. Currently research is being done to improve optics for hard X-rays which have greater penetrating power. Types Microscopes can be separated into several different classes. One grouping is based on what interacts with the sample to generate the image, i.e., light or photons (optical microscopes), electrons (electron microscopes) or a probe (scanning probe microscopes). Alternatively, microscopes can be classified based on whether they analyze the sample via a scanning point (confocal optical microscopes, scanning electron microscopes and scanning probe microscopes) or analyze the sample all at once (wide field optical microscopes and transmission electron microscopes). Wide field optical microscopes and transmission electron microscopes both use the theory of lenses (optics for light microscopes and electromagnet lenses for electron microscopes) in order to magnify the image generated by the passage of a wave transmitted through the sample, or reflected by the sample. The waves used are electromagnetic (in optical microscopes) or electron beams (in electron microscopes). Resolution in these microscopes is limited by the wavelength of the radiation used to image the sample, where shorter wavelengths allow for a higher resolution. Scanning optical and electron microscopes, like the confocal microscope and scanning electron microscope, use lenses to focus a spot of light or electrons onto the sample then analyze the signals generated by the beam interacting with the sample. The point is then scanned over the sample to analyze a rectangular region. Magnification of the image is achieved by displaying the data from scanning a physically small sample area on a relatively large screen. These microscopes have the same resolution limit as wide field optical, probe, and electron microscopes. Scanning probe microscopes also analyze a single point in the sample and then scan the probe over a rectangular sample region to build up an image. As these microscopes do not use electromagnetic or electron radiation for imaging they are not subject to the same resolution limit as the optical and electron microscopes described above. Optical The most common type of microscope (and the first invented) is the optical microscope. This is an optical instrument containing one or more lenses producing an enlarged image of a sample placed in the focal plane. Optical microscopes have refractive glass (occasionally plastic or quartz), to focus light on the eye or on to another light detector. Mirror-based optical microscopes operate in the same manner. Typical magnification of a light microscope, assuming visible range light, is up to 1250x with a theoretical resolution limit of around 0.250 micrometres or 250 nanometres. This limits practical magnification to ~1500x. Specialized techniques (e.g., scanning confocal microscopy, Vertico SMI) may exceed this magnification but the resolution is diffraction limited. The use of shorter wavelengths of light, such as ultraviolet, is one way to improve the spatial resolution of the optical microscope, as are devices such as the near-field scanning optical microscope. Sarfus is a recent optical technique that increases the sensitivity of a standard optical microscope to a point where it is possible to directly visualize nanometric films (down to 0.3 nanometre) and isolated nano-objects (down to 2 nm-diameter). The technique is based on the use of non-reflecting substrates for cross-polarized reflected light microscopy. Ultraviolet light enables the resolution of microscopic features as well as the imaging of samples that are transparent to the eye. Near infrared light can be used to visualize circuitry embedded in bonded silicon devices, since silicon is transparent in this region of wavelengths. In fluorescence microscopy many wavelengths of light ranging from the ultraviolet to the visible can be used to cause samples to fluoresce, which allows viewing by eye or with specifically sensitive cameras. Phase-contrast microscopy is an optical microscopy illumination technique in which small phase shifts in the light passing through a transparent specimen are converted into amplitude or contrast changes in the image. The use of phase contrast does not require staining to view the slide. This microscope technique made it possible to study the cell cycle in live cells. The traditional optical microscope has more recently evolved into the digital microscope. In addition to, or instead of, directly viewing the object through the eyepieces, a type of sensor similar to those used in a digital camera is used to obtain an image, which is then displayed on a computer monitor. These sensors may use CMOS or charge-coupled device (CCD) technology, depending on the application. Digital microscopy with very low light levels to avoid damage to vulnerable biological samples is available using sensitive photon-counting digital cameras. It has been demonstrated that a light source providing pairs of entangled photons may minimize the risk of damage to the most light-sensitive samples. In this application of ghost imaging to photon-sparse microscopy, the sample is illuminated with infrared photons, each of which is spatially correlated with an entangled partner in the visible band for efficient imaging by a photon-counting camera. Electron The two major types of electron microscopes are transmission electron microscopes (TEMs) and scanning electron microscopes (SEMs). They both have series of electromagnetic and electrostatic lenses to focus a high energy beam of electrons on a sample. In a TEM the electrons pass through the sample, analogous to basic optical microscopy. This requires careful sample preparation, since electrons are scattered strongly by most materials. The samples must also be very thin (below 100 nm) in order for the electrons to pass through it. Cross-sections of cells stained with osmium and heavy metals reveal clear organelle membranes and proteins such as ribosomes. With a 0.1 nm level of resolution, detailed views of viruses (20 – 300 nm) and a strand of DNA (2 nm in width) can be obtained. In contrast, the SEM has raster coils to scan the surface of bulk objects with a fine electron beam. Therefore, the specimen do not necessarily need to be sectioned, but coating with a nanometric metal or carbon layer may be needed for nonconductive samples. SEM allows fast surface imaging of samples, possibly in thin water vapor to prevent drying. Scanning probe The different types of scanning probe microscopes arise from the many different types of interactions that occur when a small probe is scanned over and interacts with a specimen. These interactions or modes can be recorded or mapped as function of location on the surface to form a characterization map. The three most common types of scanning probe microscopes are atomic force microscopes (AFM), near-field scanning optical microscopes (MSOM or SNOM, scanning near-field optical microscopy), and scanning tunneling microscopes (STM). An atomic force microscope has a fine probe, usually of silicon or silicon nitride, attached to a cantilever; the probe is scanned over the surface of the sample, and the forces that cause an interaction between the probe and the surface of the sample are measured and mapped. A near-field scanning optical microscope is similar to an AFM but its probe consists of a light source in an optical fiber covered with a tip that has usually an aperture for the light to pass through. The microscope can capture either transmitted or reflected light to measure very localized optical properties of the surface, commonly of a biological specimen. Scanning tunneling microscopes have a metal tip with a single apical atom; the tip is attached to a tube through which a current flows. The tip is scanned over the surface of a conductive sample until a tunneling current flows; the current is kept constant by computer movement of the tip and an image is formed by the recorded movements of the tip. Other types Scanning acoustic microscopes use sound waves to measure variations in acoustic impedance. Similar to Sonar in principle, they are used for such jobs as detecting defects in the subsurfaces of materials including those found in integrated circuits. On February 4, 2013, Australian engineers built a "quantum microscope" which provides unparalleled precision. Mobile apps Mobile app microscopes can optionally be used as optical microscope when the flashlight is activated. However, mobile app microscopes are harder to use due to visual noise, are often limited to 40x, and the resolution limits of the camera lens itself. See also Fluorescence interference contrast microscopy Laser capture microdissection Microscope image processing Microscope slide Multifocal plane microscopy Royal Microscopical Society References External links Milestones in Light Microscopy, Nature Publishing FAQ on Optical Microscopes Nikon MicroscopyU, tutorials from Nikon Molecular Expressions : Exploring the World of Optics and Microscopy, Florida State University. Microbiology equipment Microscopy Scientific instruments Science and technology in the Dutch Republic 1590s in the Dutch Republic 1600s in the Dutch Republic 17th-century introductions

19570

https://en.wikipedia.org/wiki/Midrash

Midrash

Midrash (; ; ) is expansive Jewish Biblical exegesis using a rabbinic mode of interpretation prominent in the Talmud. The word itself means "textual interpretation", or "study", derived from the root verb (), which means "resort to, seek, seek with care, enquire, require", forms of which appear frequently in the Hebrew Bible. Midrash and rabbinic readings "discern value in texts, words, and letters, as potential revelatory spaces", writes the Hebrew scholar Wilda Gafney. "They reimagine dominant narratival readings while crafting new ones to stand alongside—not replace—former readings. Midrash also asks questions of the text; sometimes it provides answers, sometimes it leaves the reader to answer the questions". Vanessa Lovelace defines midrash as "a Jewish mode of interpretation that not only engages the words of the text, behind the text, and beyond the text, but also focuses on each letter, and the words left unsaid by each line". The term is also used of a rabbinic work that interprets Scripture in that manner. Such works contain early interpretations and commentaries on the Written Torah and Oral Torah (spoken law and sermons), as well as non-legalistic rabbinic literature () and occasionally Jewish religious laws (), which usually form a running commentary on specific passages in the Hebrew Scripture (Tanakh). The word Midrash, especially if capitalized, can refer to a specific compilation of these rabbinic writings composed between 400 and 1200 CE. According to Gary Porton and Jacob Neusner, midrash has three technical meanings: Judaic biblical interpretation; the method used in interpreting; a collection of such interpretations. Etymology The Hebrew word midrash is derived from the root of the verb (), which means "resort to, seek, seek with care, enquire, require", forms of which appear frequently in the Bible. The word midrash occurs twice in the Hebrew Bible: 2 Chronicles 13:22 "in the midrash of the prophet Iddo", and 24:27 "in the midrash of the book of the kings". Both the King James Version (KJV) and English Standard Version (ESV) translate the word as "story" in both instances; the Septuagint translates it as (book) in the first, as (writing) in the second. The meaning of the Hebrew word in these contexts is uncertain: it has been interpreted as referring to "a body of authoritative narratives, or interpretations thereof, concerning historically important figures" and seems to refer to a "book", perhaps even a "book of interpretation", which might make its use a foreshadowing of the technical sense that the rabbis later gave to the word. Since the early Middle Ages the function of much of midrashic interpretation has been distinguished from that of , straight or direct interpretation aiming at the original literal meaning of a scriptural text. As a genre A definition of "midrash" repeatedly quoted by other scholars is that given by Gary G. Porton in 1981: "a type of literature, oral or written, which stands in direct relationship to a fixed, canonical text, considered to be the authoritative and revealed word of God by the midrashist and his audience, and in which this canonical text is explicitly cited or clearly alluded to". Lieve M. Teugels, who would limit midrash to rabbinic literature, offered a definition of midrash as "rabbinic interpretation of Scripture that bears the lemmatic form", a definition that, unlike Porton's, has not been adopted by others. While some scholars agree with the limitation of the term "midrash" to rabbinic writings, others apply it also to certain Qumran writings, to parts of the New Testament, and of the Hebrew Bible (in particular the superscriptions of the Psalms, Deuteronomy, and Chronicles), and even modern compositions are called midrashim. As method Midrash is now viewed more as method than genre, although the rabbinic midrashim do constitute a distinct literary genre. According to the Encyclopaedia Britannica, "Midrash was initially a philological method of interpreting the literal meaning of biblical texts. In time it developed into a sophisticated interpretive system that reconciled apparent biblical contradictions, established the scriptural basis of new laws, and enriched biblical content with new meaning. Midrashic creativity reached its peak in the schools of Rabbi Ishmael and Akiba, where two different hermeneutic methods were applied. The first was primarily logically oriented, making inferences based upon similarity of content and analogy. The second rested largely upon textual scrutiny, assuming that words and letters that seem superfluous teach something not openly stated in the text." Many different exegetical methods are employed to derive deeper meaning from a text. This is not limited to the traditional thirteen textual tools attributed to the Tanna Rabbi Ishmael, which are used in the interpretation of (Jewish law). The presence of words or letters which are seen to be apparently superfluous, and the chronology of events, parallel narratives or what are seen as other textual "anomalies" are often used as a springboard for interpretation of segments of Biblical text. In many cases, a handful of lines in the Biblical narrative may become a long philosophical discussion Jacob Neusner distinguishes three midrash processes: paraphrase: recounting the content of the biblical text in different language that may change the sense; prophecy: reading the text as an account of something happening or about to happen in the interpreter's time; parable or allegory: indicating deeper meanings of the words of the text as speaking of something other than the superficial meaning of the words or of everyday reality, as when the love of man and woman in the Song of Songs is interpreted as referring to the love between God and Israel or the Church as in Isaiah 5 and in the New Testament. Jewish midrashic literature Numerous Jewish midrashim previously preserved in manuscript form have been published in print, including those denominated as smaller or minor midrashim. Bernard H. Mehlman and Seth M. Limmer deprecate this usage claiming that the term "minor" seems judgmental and "small" is inappropriate for midrashim some of which are lengthy. They propose instead the term "medieval midrashim", since the period of their production extended from the twilight of the rabbinic age to the dawn of the Age of Enlightenment. Generally speaking, rabbinic midrashim either focus on religious law and practice () or interpret biblical narrative in relation to non-legal ethics or theology, creating homilies and parables based on the text. In the latter case they are described as . Halakhic midrashim Midrash halakha is the name given to a group of tannaitic expositions on the first five books of the Hebrew Bible. These midrashim, written in Mishnahic Hebrew, clearly distinguish between the Biblical texts that they discuss, and the rabbinic interpretation of that text. They often go well beyond simple interpretation and derive or provide support for halakha. This work is based on pre-set assumptions about the sacred and divine nature of the text, and the belief in the legitimacy that accords with rabbinic interpretation. Although this material treats the biblical texts as the authoritative word of God, it is clear that not all of the Hebrew Bible was fixed in its wording at this time, as some verses that are cited differ from the Masoretic, and accord with the Septuagint, or Samaritan Torah instead. Origins With the growing canonization of the contents of the Hebrew Bible, both in terms of the books that it contained, and the version of the text in them, and an acceptance that new texts could not be added, there came a need to produce material that would clearly differentiate between that text, and rabbinic interpretation of it. By collecting and compiling these thoughts they could be presented in a manner which helped to refute claims that they were only human interpretations. The argument being that by presenting the various collections of different schools of thought each of which relied upon close study of the text, the growing difference between early biblical law, and its later rabbinic interpretation could be reconciled. Aggadic midrashim Midrashim that seek to explain the non-legal portions of the Hebrew Bible are sometimes referred to as or . Aggadic discussions of the non-legal parts of Scripture are characterized by a much greater freedom of exposition than the halakhic midrashim (midrashim on Jewish law). Aggadic expositors availed themselves of various techniques, including sayings of prominent rabbis. These aggadic explanations could be philosophical or mystical disquisitions concerning angels, demons, paradise, hell, the messiah, Satan, feasts and fasts, parables, legends, satirical assaults on those who practice idolatry, etc. Some of these midrashim entail mystical teachings. The presentation is such that the midrash is a simple lesson to the uninitiated, and a direct allusion, or analogy, to a mystical teaching for those educated in this area. An example of a midrashic interpretation: Classical compilations Tannaitic Alphabet of Rabbi Akiva. This book is a midrash on the names of the letters of the hebrew alphabet. Mekhilta. The Mekhilta essentially functions as a commentary on the Book of Exodus. There are two versions of this midrash collection. One is Mekhilta de Rabbi Ishmael, the other is Mekhilta de Rabbi Simeon bar Yohai. The former is still studied today, while the latter was used by many medieval Jewish authorities. While the latter (bar Yohai) text was popularly circulated in manuscript form from the 11th to 16th centuries, it was lost for all practical purposes until it was rediscovered and printed in the 19th century. Mekhilta of Rabbi Ishmael. This is a halakhic commentary on Exodus, concentrating on the legal sections, from Exodus 12 to 35. It derives halakha from Biblical verses. This midrash collection was redacted into its final form around the 3rd or 4th century; its contents indicate that its sources are some of the oldest midrashim, dating back possibly to the time of Rabbi Akiva. The midrash on Exodus that was known to the Amoraim is not the same as our current mekhilta; their version was only the core of what later grew into the present form. Mekhilta of Rabbi Shimon. Based on the same core material as Mekhilta de Rabbi Ishmael, it followed a second route of commentary and editing, and eventually emerged as a distinct work. The Mekhilta de Rabbi Simeon bar Yohai is an exegetical midrash on Exodus 3 to 35, and is very roughly dated to near the 4th century. Seder Olam Rabbah (or simply Seder Olam). Traditionally attributed to the Tannaitic Rabbi Yose ben Halafta. This work covers topics from the creation of the universe to the construction of the Second Temple in Jerusalem. Sifra on Leviticus. The Sifra work follows the tradition of Rabbi Akiva with additions from the School of Rabbi Ishmael. References in the Talmud to the Sifra are ambiguous; It is uncertain whether the texts mentioned in the Talmud are to an earlier version of our Sifra, or to the sources that the Sifra also drew upon. References to the Sifra from the time of the early medieval rabbis (and after) are to the text extant today. The core of this text developed in the mid-3rd century as a critique and commentary of the Mishnah, although subsequent additions and editing went on for some time afterwards. Sifre on Numbers and Deuteronomy, going back mainly to the schools of the same two Rabbis. This work is mainly a halakhic midrash, yet includes a long haggadic piece in sections 78-106. References in the Talmud, and in the later Geonic literature, indicate that the original core of Sifre was on the Book of Numbers, Exodus and Deuteronomy. However, transmission of the text was imperfect, and by the Middle Ages, only the commentary on Numbers and Deuteronomy remained. The core material was redacted around the middle of the 3rd century. Sifre Zutta (The small Sifre). This work is a halakhic commentary on the book of Numbers. The text of this midrash is only partially preserved in medieval works, while other portions were discovered by Solomon Schechter in his research in the famed Cairo Geniza. It seems to be older than most other midrash, coming from the early 3rd century. Post-Talmudic Midrash Qohelet, on Ecclesiastes (probably before middle of 9th century). Midrash Esther, on Esther (940 CE). The Pesikta, a compilation of homilies on special Pentateuchal and Prophetic lessons (early 8th century), in two versions: Pesikta Rabbati Pesikta de-Rav Kahana Pirqe Rabbi Eliezer (not before 8th century), a midrashic narrative of the more important events of the Pentateuch. Tanchuma or Yelammedenu (9th century) on the whole Pentateuch; its homilies often consist of a halakhic introduction, followed by several poems, exposition of the opening verses, and the Messianic conclusion. There are actually a number of different Midrash Tanhuma collections. The two most important are Midrash Tanhuma Ha Nidpas, literally the published text. This is also sometimes referred to as Midrash Tanhuma Yelamdenu. The other is based on a manuscript published by Solomon Buber and is usually known as Midrash Tanhuma Buber, much to many students' confusion, this too is sometimes referred to as Midrash Tanhuma Yelamdenu. Although the first is the one most widely distributed today, when the medieval authors refer to Midrash Tanchuma, they usually mean the second. Midrash Shmuel, on the first two Books of Kings (I, II Samuel). Midrash Tehillim, on the Psalms. Midrash Mishlé, a commentary on the book of Proverbs. Yalkut Shimoni. A collection of midrash on the entire Hebrew Scriptures (Tanakh) containing both halakhic and aggadic midrash. It was compiled by Shimon ha-Darshan in the 13th century CE and is collected from over 50 other midrashic works. Midrash HaGadol (in English: the great midrash) (in Hebrew: מדרש הגדול) was written by Rabbi David Adani of Yemen (14th century).It is a compilation of aggadic midrashim on the Pentateuch taken from the two Talmuds and earlier Midrashim of Yemenite provenance. Tanna Devei Eliyahu. This work that stresses the reasons underlying the commandments, the importance of knowing Torah, prayer, and repentance, and the ethical and religious values that are learned through the Bible. It consists of two sections, Seder Eliyahu Rabbah and Seder Eliyahu Zuta. It is not a compilation but a uniform work with a single author. Midrash Tadshe (also called Baraita de-Rabbi Pinehas ben Yair): Midrash Rabbah Midrash Rabbah — widely studied are the Rabboth (great commentaries), a collection of ten midrashim on different books of the Bible (namely, the five books of the Torah and the Five Scrolls). Although referred to collectively as the Midrash Rabbah, they are not a cohesive work, being written by different authors in different locales in different historical eras. The ones on Exodus, Leviticus, Numbers, and Deuteronomy are chiefly made up of homilies on the Scripture sections for the Sabbath or festival, while the others are rather of an exegetical nature. Bereshith Rabba, Genesis Rabbah. This text dates from the sixth century. A midrash on Genesis, it offers explanations of words and sentences and haggadic interpretations and expositions, many of which are only loosely tied to the text. It is often interlaced with maxims and parables. Its redactor drew upon earlier rabbinic sources, including the Mishnah, Tosefta, the halakhic midrashim the Targums. It apparently drew upon a version of Talmud Yerushalmi that resembles, yet was not identical to, the text that survived to present times. It was redacted sometime in the early fifth century. Shemot Rabba, Exodus Rabbah (tenth or eleventh and twelfth century) Vayyiqra Rabba, Leviticus Rabbah (middle seventh century) Bamidbar Rabba, Numbers Rabbah (twelfth century) Devarim Rabba, Deuteronomy Rabbah (tenth century) Shir Hashirim Rabba, Song of Songs Rabbah (probably before the middle of ninth century) Ruth Rabba, (probably before the middle of ninth century) Eicha Rabba, Lamentations Rabbah (seventh century). Lamentations Rabbah has been transmitted in two versions. One edition is represented by the first printed edition (at Pesaro in 1519); the other is the Salomon Buber edition, based on manuscript J.I.4 from the Biblioteca Casanatense in Rome. This latter version (Buber's) is quoted by the Shulkhan Arukh, as well as medieval Jewish authorities. It was probably redacted sometime in the fifth century. Ecclesiastes Rabbah Esther Rabbah Contemporary Jewish midrash A wealth of literature and artwork has been created in the 20th and 21st centuries by people aspiring to create "contemporary midrash". Forms include poetry, prose, Bibliodrama (the acting out of Bible stories), murals, masks, and music, among others. The Institute for Contemporary Midrash was formed to facilitate these reinterpretations of sacred texts. The institute hosted several week-long intensives between 1995 and 2004, and published eight issues of Living Text: The Journal of Contemporary Midrash from 1997 to 2000. Contemporary views According to Carol Bakhos, recent studies that use literary-critical tools to concentrate on the cultural and literary aspects of midrash have led to a rediscovery of the importance of these texts for finding insights into the rabbinic culture that created them. Midrash is increasingly seen as a literary and cultural construction, responsive to literary means of analysis. Frank Kermode has written that midrash is an imaginative way of "updating, enhancing, augmenting, explaining, and justifying the sacred text". Because the Tanakh came to be seen as unintelligible or even offensive, midrash could be used as a means of rewriting it in a way that both makes it more acceptable to later ethical standards and renders it less obviously implausible. James L. Kugel, in The Bible as It Was (Cambridge, Massachusetts: Harvard University Press, 1997), examines a number of early Jewish and Christian texts that comment on, expand, or re-interpret passages from the first five books of the Tanakh between the third century BCE and the second century CE. Kugel traces how and why biblical interpreters produced new meanings by the use of exegesis on ambiguities, syntactical details, unusual or awkward vocabulary, repetitions, etc. in the text. As an example, Kugel examines the different ways in which the biblical story that God's instructions are not to be found in heaven (Deuteronomy 30:12) has been interpreted. Baruch 3:29-4:1 states that this means that divine wisdom is not available anywhere other than in the Torah. Targum Neophyti (Deuteronomy 30:12) and b. Baba Metzia 59b claim that this text means that Torah is no longer hidden away, but has been given to humans who are then responsible for following it. See also Allegory in the Middle Ages Archetype Biblical studies Lectio Divina Icon Midrasz, a Polish language journal on Polish Jewish matters Madrassah Pardes (Jewish exegesis) Semiotics Symbol Typology References External links Midrash Section of Chabad.org Includes a five-part series on the classic approaches to reading Midrash. Sacred Texts: Judaism: Tales and Maxims from the Midrash extracted and translated by Samuel Rapaport, 1908. Midrash—entry in historical sourcebook by Mahlon H. Smith Full text resources Tanchuma (Hebrew) Abridged translations of Tanchuma in English. Yalkut Shimoni (Hebrew) English translation and Hebrew text Exegesis Religious terminology Ancient Hebrew texts Hebrew words and phrases Hebrew words and phrases in Jewish law

19571

https://en.wikipedia.org/wiki/Missouri

Missouri

Missouri is a state in the Midwestern region of the United States. Ranking 21st in land area, it is bordered by eight states (tied for the most with Tennessee): Iowa to the north, Illinois, Kentucky and Tennessee to the east, Arkansas to the south and Oklahoma, Kansas and Nebraska to the west. In the south are the Ozarks, a forested highland, providing timber, minerals, and recreation. The Missouri River, after which the state is named, flows through the center into the Mississippi River, which makes up the eastern border. With more than six million residents, it is the 19th-most populous state of the country. The largest urban areas are St. Louis, Kansas City, Springfield and Columbia; the capital is Jefferson City. Humans have inhabited what is now Missouri for at least 12,000 years. The Mississippian culture, which emerged at least in the ninth century, built cities and mounds before declining in the 14th century. When European explorers arrived in the 17th century, they encountered the Osage and Missouria nations. The French incorporated the territory into Louisiana founding Ste. Genevieve in 1735 and St. Louis in 1764. After a brief period of Spanish rule, the United States acquired Missouri as part of the Louisiana Purchase in 1803. Americans from the Upland South, including enslaved African Americans, rushed into the new Missouri Territory. Missouri was admitted as a slave state as part of the Missouri Compromise of 1820. Many from Virginia, Kentucky and Tennessee settled in the Boonslick area of Mid-Missouri. Soon after, heavy German immigration formed the Missouri Rhineland. Missouri played a central role in the westward expansion of the United States, as memorialized by the Gateway Arch. The Pony Express, Oregon Trail, Santa Fe Trail and California Trail all began in Missouri. As a border state, Missouri's role in the American Civil War was complex, and it was subject to rival governments, raids, and guerilla warfare. After the war, both Greater St. Louis and the Kansas City metropolitan area became centers of industrialization and business. Today the state is divided into 114 counties and the independent city of St. Louis. Missouri's culture blends elements of the Midwestern and Southern United States. It is the birthplace of the musical genres ragtime, Kansas City jazz and St. Louis blues. The well-known Kansas City-style barbecue, and the lesser-known St. Louis-style barbecue, can be found across the state and beyond. Missouri is a major center of beer brewing and has some of the most permissive alcohol laws in the U.S. It is home to Anheuser-Busch, the world's largest beer producer, and produces an eponymous wine produced in the Missouri Rhineland and Ozarks. Outside the state's major cities, popular tourist destinations include the Lake of the Ozarks, Table Rock Lake and Branson. Well-known Missourians include Chuck Berry, Sheryl Crow, Walt Disney, Edwin Hubble, Nelly, Brad Pitt, Harry S. Truman, and Mark Twain. Some of the largest companies based in the state include Cerner, Express Scripts, Monsanto, Emerson Electric, Edward Jones, H&R Block, Wells Fargo Advisors, Centene Corporation, and O'Reilly Auto Parts. Well-known universities in Missouri include the University of Missouri, Saint Louis University, Washington University in St. Louis. Missouri has been called the "Mother of the West" and the "Cave State", but its most famous nickname is the "Show Me State". Etymology and pronunciation The state is named for the Missouri River, which was named after the indigenous Missouri Indians, a Siouan-language tribe. It is said they were called the ouemessourita (wimihsoorita), meaning "those who have dugout canoes", by the Miami-Illinois language speakers. This appears to be folk etymology—the Illinois spoke an Algonquian language and the closest approximation that can be made is that of their close neighbors, the Ojibwe, is "You Ought to Go Downriver & Visit Those People." This would be an odd occurrence, as the French who first explored and attempted to settle the Mississippi River usually got their translations during that time fairly accurate, often giving things French names that were exact translations of the native tongue(s). Assuming Missouri were deriving from the Siouan language, it would translate as "It connects to the side of it", in reference to the river itself. This is not entirely likely either, as this would be coming out as "Maya Sunni" (). Most likely, though, the name Missouri comes from Chiwere, a Siouan language spoken by people who resided in the modern-day states of Wisconsin, Iowa, South Dakota, Missouri, and Nebraska. The name Missouri has several different pronunciations even among its present-day natives, the two most common being and . Further pronunciations also exist in Missouri or elsewhere in the United States, involving the realization of the medial consonant as either or ; the vowel in the second syllable as either or ; and the third syllable as (phonetically , , or ) or . Any combination of these phonetic realizations may be observed coming from speakers of American English. In British received pronunciation, the preferred variant is , with being a possible alternative. The linguistic history was treated definitively by Donald M. Lance, who acknowledged that the question is sociologically complex, but no pronunciation could be declared "correct", nor could any be clearly defined as native or outsider, rural or urban, southern or northern, educated or otherwise. Politicians often employ multiple pronunciations, even during a single speech, to appeal to a greater number of listeners. In informal contexts respellings of the state's name, such as "Missour-ee" or "Missour-uh", are occasionally used to distinguish pronunciations phonetically. Nicknames There is no official state nickname. However, Missouri's unofficial nickname is the "Show Me State," which appears on its license plates. This phrase has several origins. One is popularly ascribed to a speech by Congressman Willard Vandiver in 1899, who declared that "I come from a state that raises corn and cotton, cockleburs and Democrats, and frothy eloquence neither convinces nor satisfies me. I'm from Missouri, and you have got to show me." This is in keeping with the saying "I'm from Missouri," which means "I'm skeptical of the matter and not easily convinced." However, according to researchers, the phrase "show me" was already in use before the 1890s. Another one states that it is a reference to Missouri miners who were taken to Leadville, Colorado to replace striking workers. Since the new men were unfamiliar with the mining methods, they required frequent instruction. Other nicknames for Missouri include "The Lead State", "The Bullion State", "The Ozark State", "The Mother of the West", "The Iron Mountain State", and "Pennsylvania of the West". It is also known as the "Cave State" because there are more than 7,300 recorded caves in the state (second to Tennessee). Perry County is the county with the largest number of caves and the single longest cave. The official state motto is , which means "Let the welfare of the people be the supreme law." History Early history Archaeological excavations along river valleys have shown continuous habitation since about 9000 BCE. Beginning before 1000 CE, the people of the Mississippian culture created regional political centers at present-day St. Louis and across the Mississippi River at Cahokia, near present-day Collinsville, Illinois. Their large cities included thousands of individual residences. Still, they are known for their surviving massive earthwork mounds, built for religious, political and social reasons, in platform, ridgetop and conical shapes. Cahokia was the center of a regional trading network that reached from the Great Lakes to the Gulf of Mexico. The civilization declined by 1400 CE, and most descendants left the area long before the arrival of Europeans. St. Louis was at one time known as Mound City by the European Americans because of the numerous surviving prehistoric mounds since lost to urban development. The Mississippian culture left mounds throughout the middle Mississippi and Ohio river valleys, extending into the southeast and the upper river. The land that became the state of Missouri was part of numerous different territories possessed changing and often indeterminate borders and had many different Native American and European names between the 1600s and statehood. For much of the first half of the 1700s, the west bank of the Mississippi River that would become Missouri was mostly uninhabited, something of a no man's land that kept peace between the Illinois on the east bank of the Mississippi River and to the North, and the Osage and Missouri Indians of the lower Missouri Valley. In the early 1700s, French traders and missionaries explored the whole of the Mississippi Valley, named the region “Louisiana.” Around the same time, a different group of French Canadians who established five villages on the east bank of the Mississippi River placed their settlements in the le pays des Illinois, “the country of the Illinois.” When habitants - settlers of French Canadian descent - began crossing the Mississippi River to establish settlements such as Ste. Genevieve, they continued to place their settlements in the Illinois Country. At the same time, the French settlements on both sides of the Mississippi River were part of the French province of Louisiana. To distinguish the settlements in the Middle Mississippi Valley from French settlements in the lower Mississippi Valley around New Orleans, French officials and inhabitants referred to the Middle Mississippi Valley as La Haute Louisiane, “The High Louisiana,” or “Upper Louisiana.” The first European settlers were mostly ethnic French Canadians, who created their first settlement in Missouri at present-day Ste. Genevieve, about an hour south of St. Louis. They had migrated about 1750 from the Illinois Country. They came from colonial villages on the east side of the Mississippi River, where soils were becoming exhausted, and there was insufficient river bottom land for the growing population. The early Missouri settlements included many enslaved Africans and Native Americans, and slave labor was central to both commercial agriculture and the fur trade. Sainte-Geneviève became a thriving agricultural center, producing enough surplus wheat, corn and tobacco to ship tons of grain annually downriver to Lower Louisiana for trade. Grain production in the Illinois Country was critical to the survival of Lower Louisiana and especially the city of New Orleans. St. Louis was founded soon after by French fur traders, Pierre Laclède and stepson Auguste Chouteau from New Orleans in 1764. From 1764 to 1803, European control of the area west of the Mississippi to the northernmost part of the Missouri River basin, called Louisiana, was assumed by the Spanish as part of the Viceroyalty of New Spain, due to Treaty of Fontainebleau (in order to have Spain join with France in the war against England). The arrival of the Spanish in St. Louis was in September 1767. St. Louis became the center of a regional fur trade with Native American tribes that extended up the Missouri and Mississippi rivers, which dominated the regional economy for decades. Trading partners of major firms shipped their furs from St. Louis by river down to New Orleans for export to Europe. They provided a variety of goods to traders for sale and trade with their Native American clients. The fur trade and associated businesses made St. Louis an early financial center and provided the wealth for some to build fine houses and import luxury items. Its location near the confluence of the Illinois River meant it also handled produce from the agricultural areas. River traffic and trade along the Mississippi were integral to the state's economy. As the area's first major city, St. Louis expanded greatly after the invention of the steamboat and the increased river trade. 19th century Napoleon Bonaparte had gained Louisiana for French ownership from Spain in 1800 under the Treaty of San Ildefonso after it had been a Spanish colony since 1762. But the treaty was kept secret. Louisiana remained nominally under Spanish control until a transfer of power to France on November 30, 1803, just three weeks before the cession to the United States. Part of the 1803 Louisiana Purchase by the United States, Missouri earned the nickname Gateway to the West because it served as a significant departure point for expeditions and settlers heading to the West during the 19th century. St. Charles, just west of St. Louis, was the starting point and the return destination of the Lewis and Clark Expedition, which ascended the Missouri River in 1804, to explore the western lands to the Pacific Ocean. St. Louis was a major supply point for decades, for parties of settlers heading west. As many of the early settlers in western Missouri migrated from the Upper South, they brought enslaved African Americans as agricultural laborers, and they desired to continue their culture and the institution of slavery. They settled predominantly in 17 counties along the Missouri River, in an area of flatlands that enabled plantation agriculture and became known as "Little Dixie." The state was rocked by the 1811–12 New Madrid earthquakes. Casualties were few due to the sparse population. Admission as a state in 1821 In 1821, the former Missouri Territory was admitted as a slave state, under the Missouri Compromise, and with a temporary state capital in St. Charles. In 1826, the capital was shifted to its current, permanent location of Jefferson City, also on the Missouri River. Originally the state's western border was a straight line, defined as the meridian passing through the Kawsmouth, the point where the Kansas River enters the Missouri River. The river has moved since this designation. This line is known as the Osage Boundary. In 1836 the Platte Purchase was added to the northwest corner of the state after purchase of the land from the native tribes, making the Missouri River the border north of the Kansas River. This addition increased the land area of what was already the largest state in the Union at the time (about to Virginia's 65,000 square miles, which then included West Virginia). In the early 1830s, Mormon migrants from northern states and Canada began settling near Independence and areas just north of there. Conflicts over religion and slavery arose between the 'old settlers' (mainly from the South) and the Mormons (mainly from the North). The Mormon War erupted in 1838. By 1839, with the help of an "Extermination Order" by Governor Lilburn Boggs, the old settlers forcefully expelled the Mormons from Missouri and confiscated their lands. Conflicts over slavery exacerbated border tensions among the states and territories. From 1838 to 1839, a border dispute with Iowa over the so-called Honey Lands resulted in both states' calling-up of militias along the border. With increasing migration, from the 1830s to the 1860s, Missouri's population almost doubled with every decade. Most newcomers were American-born, but many Irish and German immigrants arrived in the late 1840s and 1850s. As a majority were Catholic, they set up their own religious institutions in the state, which had been mostly Protestant. Many settled in cities, creating a regional and then state network of Catholic churches and schools. 19th-century German immigrants created the wine industry along the Missouri River and the beer industry in St. Louis. While many German immigrants were strongly anti-slavery, many Irish immigrants living in cities were pro-slavery, fearing that liberating African-American slaves would create a glut of unskilled labor, driving wages down. Most Missouri farmers practiced subsistence farming before the American Civil War. The majority of those who held slaves had fewer than five each. Planters, defined by some historians as those holding 20 slaves or more, were concentrated in the counties known as "Little Dixie," in the central part of the state along the Missouri River. The tensions over slavery chiefly had to do with the future of the state and nation. In 1860, enslaved African Americans made up less than 10% of the state's population of 1,182,012. In order to control the flooding of farmland and low-lying villages along the Mississippi, the state had completed construction of of levees along the river by 1860. American Civil War After the secession of Southern states began in 1861, the Missouri legislature called for the election of a special convention on secession. Pro-Southern Governor Claiborne F. Jackson ordered the mobilization of several hundred members of the state militia who had gathered in a camp in St. Louis for training. Alarmed at this action, Union General Nathaniel Lyon struck first, encircling the camp and forcing the state troops to surrender. Lyon directed his soldiers, largely non-English-speaking German immigrants, to march the prisoners through the streets, and they opened fire on the largely hostile crowds of civilians who gathered around them. Soldiers killed unarmed prisoners as well as men, women, and children of St. Louis in the incident that became known as the "St. Louis Massacre". These events heightened Confederate support within the state. Governor Jackson appointed Sterling Price, president of the convention on secession, as head of the new Missouri State Guard. In the face of Union General Lyon's rapid advance through the state, Jackson and Price were forced to flee the capital of Jefferson City on June 14, 1861. In Neosho, Missouri, Jackson called the state legislature into session to call for secession. However, the elected legislative body was split between pro-Union and pro-Confederate. As such, few of the pro-unionist attended the session called in Neosho, and the ordinance of secession was quickly adopted. The Confederacy recognized Missouri secession on October 30, 1861. With the elected governor absent from the capital and the legislators largely dispersed, the state convention was reassembled with most of its members present, save twenty who fled south with Jackson's forces. The convention declared all offices vacant and installed Hamilton Gamble as the new governor of Missouri. President Lincoln's administration immediately recognized Gamble's government as the legal Missouri government. The federal government's decision enabled raising pro-Union militia forces for service within the state and volunteer regiments for the Union Army. Fighting ensued between Union forces and a combined army of General Price's Missouri State Guard and Confederate troops from Arkansas and Texas under General Ben McCulloch. After winning victories at the battle of Wilson's Creek and the siege of Lexington, Missouri and suffering losses elsewhere, the Confederate forces retreated to Arkansas and later Marshall, Texas, in the face of a largely reinforced Union Army. Though regular Confederate troops staged some large-scale raids into Missouri, the fighting in the state for the next three years consisted chiefly of guerrilla warfare. "Citizen soldiers" or insurgents such as Captain William Quantrill, Frank and Jesse James, the Younger brothers, and William T. Anderson made use of quick, small-unit tactics. Pioneered by the Missouri Partisan Rangers, such insurgencies also arose in portions of the Confederacy occupied by the Union during the Civil War. Historians have portrayed stories of the James brothers' outlaw years as an American "Robin Hood" myth. The vigilante activities of the Bald Knobbers of the Ozarks in the 1880s were an unofficial continuation of insurgent mentality long after the official end of the war, and they are a favorite theme in Branson's self-image. Reconstruction period and later 19th century 20th century The Progressive Era (1890s to 1920s) saw numerous prominent leaders from Missouri trying to end corruption and modernize politics, government, and society. Joseph "Holy Joe" Folk was a key leader who made a strong appeal to the middle class and rural evangelical Protestants. Folk was elected governor as a progressive reformer and Democrat in the 1904 election. He promoted what he called "the Missouri Idea," the concept of Missouri as a leader in public morality through popular control of law and strict enforcement. He successfully conducted antitrust prosecutions, ended free railroad passes for state officials, extended bribery statutes, improved election laws, required formal registration for lobbyists, made racetrack gambling illegal and enforced the Sunday-closing law. He helped enact Progressive legislation, including an initiative and referendum provision, regulation of elections, education, employment and child labor, railroads, food, business, and public utilities. Several efficiency-oriented examiner boards and commissions were established during Folk's administration, including many agricultural boards and the Missouri library commission. Between the Civil War and the end of World War II, Missouri transitioned from a rural economy to a hybrid industrial-service-agricultural economy as the Midwest rapidly industrialized. The expansion of railroads to the West transformed Kansas City into a major transportation hub within the nation. The growth of the Texas cattle industry along with this increased rail infrastructure and the invention of the refrigerated boxcar also made Kansas City a major meatpacking center, as large cattle drives from Texas brought herds of cattle to Dodge City and other Kansas towns. There, the cattle were loaded onto trains destined for Kansas City, where they were butchered and distributed to the eastern markets. The first half of the 20th century was the height of Kansas City's prominence, and its downtown became a showcase for stylish Art Deco skyscrapers as construction boomed. In 1930, there was a diphtheria epidemic in the area around Springfield, which killed approximately 100 people. Serum was rushed to the area, and medical personnel stopped the epidemic. During the mid-1950s and 1960s, St. Louis and Kansas City suffered deindustrialization and loss of jobs in railroads and manufacturing, as did other Midwestern industrial cities. In 1956 St. Charles claims to be the site of the first interstate highway project. Such highway construction made it easy for middle-class residents to leave the city for newer housing developed in the suburbs, often former farmland where land was available at lower prices. These major cities have gone through decades of readjustment to develop different economies and adjust to demographic changes. Suburban areas have developed separate job markets, both in knowledge industries and services, such as major retail malls. 21st century In 2014, Missouri received national attention for the protests and riots that followed the shooting of Michael Brown by a police officer of Ferguson, which led Governor Jay Nixon to call out the Missouri National Guard. A grand jury declined to indict the officer, and the U.S. Department of Justice concluded, after careful investigation, that the police officer legitimately feared for his safety. However, in a separate investigation, the Department of Justice also found that the Ferguson Police Department and the City of Ferguson relied on unconstitutional practices in order to balance the city's budget through racially motivated excessive fines and punishments, that the Ferguson police "had used excessive and dangerous force and had disproportionately targeted blacks," and that the municipal court "emphasized revenue over public safety, leading to routine breaches of citizens' constitutional guarantees of due process and equal protection under the law." A series of student protests at the University of Missouri against what the protesters viewed as poor response by the administration to racist incidents on campus began in September 2015. On June 7, 2017, the National Association for the Advancement of Colored People issued a warning to prospective African-American travelers to Missouri. This is the first NAACP warning ever covering an entire state. According to a 2018 report by the Missouri Attorney General's office, for the past 18 years, "African Americans, Hispanics and other people of color are disproportionately affected by stops, searches and arrests." The same report found that the biggest discrepancy was in 2017, when "black motorists were 85% more likely to be pulled over in traffic stops". In 2018 the USDA announced its plans to relocate Economic Research Service (ERS) and National Institute of Food & Agriculture (NIFA) to Kansas City. They have since decided on a specific location in downtown Kansas City, Missouri. With the addition of the KC Streetcar project and construction of the Sprint Center Arena, the downtown area in KC has attracted investment in new offices, hotels, and residential complexes. Both Kansas City and St. Louis are undergoing a rebirth in their downtown areas with the addition of the new Power & Light (KC) and Ballpark Village (STL) districts and the renovation of existing historical buildings in each downtown area. The 2019 announcement of an MLS expansion team in St. Louis is driving even more development in the downtown west area of St. Louis. Geography Missouri is landlocked and borders eight different states, a figure equaled only by its neighbor, Tennessee. Missouri is bounded by Iowa on the north; by Illinois, Kentucky, and Tennessee across the Mississippi River on the east; on the south by Arkansas; and by Oklahoma, Kansas, and Nebraska (the last across the Missouri River) on the west. Whereas the northern and southern boundaries are straight lines, the Missouri Bootheel extends south between the St. Francis and the Mississippi rivers. The two largest rivers are the Mississippi (which defines the eastern boundary of the state) and the Missouri River (which flows from west to east through the state), essentially connecting the two largest metros of Kansas City and St. Louis. Although today it is usually considered part of the Midwest, Missouri was historically seen by many as a border state, chiefly because of the settlement of migrants from the South and its status as a slave state before the Civil War, balanced by the influence of St. Louis. The counties that made up "Little Dixie" were those along the Missouri River in the center of the state, settled by Southern migrants who held the greatest concentration of slaves. In 2005, Missouri received 16,695,000 visitors to its national parks and other recreational areas totaling , giving it $7.41 million in annual revenues, 26.6% of its operating expenditures. Topography North of, and in some cases just south of, the Missouri River lie the Northern Plains that stretch into Iowa, Nebraska, and Kansas. Here, rolling hills remain from the glaciation that once extended from the Canadian Shield to the Missouri River. Missouri has many large river bluffs along the Mississippi, Missouri, and Meramec Rivers. Southern Missouri rises to the Ozark Mountains, a dissected plateau surrounding the Precambrian igneous St. Francois Mountains. This region also hosts karst topography characterized by high limestone content with the formation of sinkholes and caves. The southeastern part of the state is known as the Missouri Bootheel region, which is part of the Mississippi Alluvial Plain or Mississippi embayment. This region is the lowest, flattest, warmest, and wettest part of the state. It is also among the poorest, as the economy there is mostly agricultural. It is also the most fertile, with cotton and rice crops predominant. The Bootheel was the epicenter of the four New Madrid Earthquakes of 1811 and 1812. Climate Missouri generally has a humid continental climate with cool, sometimes cold, winters and hot, humid, and wet summers. In the southern part of the state, particularly in the Bootheel, the climate becomes humid subtropical. Located in the interior United States, Missouri often experiences extreme temperatures. Without high mountains or oceans nearby to moderate temperature, its climate is alternately influenced by air from the cold Arctic and the hot and humid Gulf of Mexico. Missouri's highest recorded temperature is at Warsaw and Union on July 14, 1954, while the lowest recorded temperature is also at Warsaw on February 13, 1905. Located in Tornado Alley, Missouri also receives extreme weather in the form of severe thunderstorms and tornadoes. On May 22, 2011, a massive EF-5 tornado killed 158 people and destroyed roughly one-third of the city of Joplin. The tornado caused an estimated $1–3 billion in damages, killed 159 people and injured more than a thousand. It was the first EF5 to hit the state since 1957 and the deadliest in the U.S. since 1947, making it the seventh deadliest tornado in American history and 27th deadliest in the world. St. Louis and its suburbs also have a history of experiencing particularly severe tornadoes, the most recent one of note being an EF4 that damaged Lambert-St. Louis International Airport on April 22, 2011. One of the worst tornadoes in American history struck St. Louis on May 27, 1896, killing at least 255 people and causing $10 million in damage (equivalent to $3.9 billion in 2009 or $ in today's dollars). Wildlife Missouri is home to diverse flora and fauna, including several endemic species. There is a large amount of fresh water present due to the Mississippi River, Missouri River, Table Rock Lake and Lake of the Ozarks, with numerous smaller tributary rivers, streams, and lakes. North of the Missouri River, the state is primarily rolling hills of the Great Plains, whereas south of the Missouri River, the state is dominated by the Oak-Hickory Central U.S. hardwood forest. Forests Recreational and commercial uses of public forests, including grazing, logging, and mining, increased after World WarII. Fishermen, hikers, campers, and others started lobbying to protect forest areas with a "wilderness character." During the 1930s and 1940s Aldo Leopold, Arthur Carhart and Bob Marshall developed a "wilderness" policy for the Forest Service. Their efforts bore fruit with the Wilderness Act of 1964, which designated wilderness areas "where the earth and its community of life are untrammeled by men, where man himself is a visitor and does not remain." This included second growth public forests like the Mark Twain National Forest. Demographics The United States Census Bureau estimates that the population of Missouri was 6,137,428 on July 1, 2019, a 2.48% increase since the 2010 United States census. Missouri had a population of 5,988,927, according to the 2010 census; an increase of 137,525 (2.3 percent) since the year 2010. From 2010 to 2018, this includes a natural increase of 137,564 people since the last census (480,763 births less 343,199 deaths) and an increase of 88,088 people due to net migration into the state. Immigration from outside the United States resulted in a net increase of 50,450 people, and migration within the country produced a net increase of 37,638 people. More than half of Missourians (3,294,936 people, or 55.0%) live within the state's two largest metropolitan areas—St. Louis and Kansas City. The state's population density 86.9 in 2009, is also closer to the national average (86.8 in 2009) than any other state. The U.S. census of 2010 found that the population center of the United States is in Texas County, while the 2000 census found the mean population center to be in Phelps County. The center of population of Missouri is in Osage County, in the city of Westphalia. In 2004, the population included 194,000 foreign-born (3.4 percent of the state population). The five largest ancestry groups in Missouri are: German (27.4 percent), Irish (14.8 percent), English (10.2 percent), American (8.5 percent) and French (3.7 percent). German Americans are an ancestry group present throughout Missouri. African Americans are a substantial part of the population in St. Louis (56.6% of African Americans in the state lived in St. Louis or St. Louis County as of the 2010 census), Kansas City, Boone County and in the southeastern Bootheel and some parts of the Missouri River Valley, where plantation agriculture was once important. Missouri Creoles of French ancestry are concentrated in the Mississippi River Valley south of St. Louis (see Missouri French). Kansas City is home to large and growing immigrant communities from Latin America esp. Mexico and Colombia, Africa (i.e. Sudan, Somalia and Nigeria), and Southeast Asia including China and the Philippines; and Europe like the former Yugoslavia (see Bosnian American). A notable Cherokee Indian population exists in Missouri. In 2004, 6.6 percent of the state's population was reported as younger than5, 25.5 percent younger than 18, and 13.5 percent 65 or older. Females were approximately 51.4 percent of the population. 81.3 percent of Missouri residents were high school graduates (more than the national average), and 21.6 percent had a bachelor's degree or higher. 3.4 percent of Missourians were foreign-born, and 5.1 percent reported speaking a language other than English at home. In 2010, there were 2,349,955 households in Missouri, with 2.45 people per household. The homeownership rate was 70.0 percent, and the median value of an owner-occupied housing unit was $137,700. The median household income for 2010 was $46,262, or $24,724 per capita. There was 14.0 percent (1,018,118) of Missourians living below the poverty line in 2010. The mean commute time to work was 23.8 minutes. Birth data In 2011, 28.1% of Missouri's population younger than age1 were minorities. Note: Births in table don't add up, because Hispanics are counted both by their ethnicity and by their race, giving a higher overall number. Since 2016, data for births of White Hispanic origin are not collected, but included in one Hispanic group; persons of Hispanic origin may be of any race. Language The vast majority of people in Missouri speak English. Approximately 5.1% of the population reported speaking a language other than English at home. The Spanish language is spoken in small Latino communities in the St. Louis and Kansas City Metro areas. Missouri is home to an endangered dialect of the French language known as Missouri French. Speakers of the dialect, who call themselves Créoles, are descendants of the French pioneers who settled the area then known as the Illinois Country beginning in the late 17th century. It developed in isolation from French speakers in Canada and Louisiana, becoming quite distinct from the varieties of Canadian French and Louisiana Creole French. Once widely spoken throughout the area, Missouri French is now nearly extinct, with only a few elderly speakers able to use it. Religion According to a Pew Research study conducted in 2014, 80% of Missourians identify with a religion. 77% affiliate with Christianity and its various denominations and the other 3% are adherents of non-Christian religions. The remaining 20% have no religion, with 2% specifically identifying as atheists and 3% identifying as agnostics (the other 15% do not identify as "anything in particular"). The religious demographics of Missouri are as follows: Christian 77% Protestant 58% Evangelical Protestant 36% Mainline Protestant 16% Historically Black Protestant 6% Catholic 16% Mormon 1% Orthodox Christian <1% Jehovah's Witness <1% Other Christian <1% Non-Christian Religions 3% Jewish <1% Muslim <1% Buddhist 1% Hindu <1% Other World Religions <1% Unaffiliated (No religion) 20% Atheist 2% Agnostic 3% Nothing in particular 15% Don't know <1% The largest denominations by number of adherents in 2010 were the Southern Baptist Convention with 749,685; the Roman Catholic Church with 724,315; and the United Methodist Church with 226,409. Among the other denominations there are approximately 93,000 Mormons in 253 congregations, 25,000 Jewish adherents in 21 synagogues, 12,000 Muslims in 39 masjids, 7,000 Buddhists in 34 temples, 20,000 Hindus in 17 temples, 2,500 Unitarians in nine congregations, 2,000 of the Baháʼí Faith in 17 temples, five Sikh temples, a Zoroastrian temple, a Jain temple and an uncounted number of neopagans. Several religious organizations have headquarters in Missouri, including the Lutheran Church–Missouri Synod, which has its headquarters in Kirkwood, as well as the United Pentecostal Church International in Hazelwood, both outside St. Louis. Independence, near Kansas City, is the headquarters for the Community of Christ (formerly the Reorganized Church of Jesus Christ of Latter-day Saints), the Church of Christ (Temple Lot) and the group Remnant Church of Jesus Christ of Latter-day Saints. This area and other parts of Missouri are also of significant religious and historical importance to The Church of Jesus Christ of Latter-day Saints (LDS Church), which maintains several sites and visitor centers. Springfield is the headquarters of the Assemblies of God USA and the Baptist Bible Fellowship International. The General Association of General Baptists has its headquarters in Poplar Bluff. The Unity Church is headquartered in Unity Village. Springfield is particularly known as a Christian center in the state and is considered by some to be a "buckle" of the Bible Belt. Hindu Temple of St. Louis is the largest Hindu Temple in Missouri, serving more than 14,000 Hindus. Economy Total employment in 2016: 2,494,720 Total Number of employer establishments in 2016: 160,912 The U.S. Department of Commerce's Bureau of Economic Analysis estimated Missouri's 2016 gross state product at $299.1 billion, ranking 22nd among U.S. states. Per capita personal income in 2006 was $32,705, ranking 26th in the nation. Major industries include aerospace, transportation equipment, food processing, chemicals, printing/publishing, electrical equipment, light manufacturing, financial services and beer. The agriculture products of the state are beef, soybeans, pork, dairy products, hay, corn, poultry, sorghum, cotton, rice, and eggs. Missouri is ranked 6th in the nation for the production of hogs and 7th for cattle. Missouri is ranked in the top five states in the nation for production of soy beans, and it is ranked fourth in the nation for the production of rice. In 2001, there were 108,000 farms, the second-largest number in any state after Texas. Missouri actively promotes its rapidly growing wine industry. According to the Missouri Partnership, Missouri's agriculture industry contributes $33 billion in GDP to Missouri's economy, and generates $88 billion in sales and more than 378,000 jobs. Missouri has vast quantities of limestone. Other resources mined are lead, coal, and crushed stone. Missouri produces the most lead of all the states. Most of the lead mines are in the central eastern portion of the state. Missouri also ranks first or near first in the production of lime, a key ingredient in Portland cement. Missouri also has a growing science, agricultural technology, and biotechnology field. Monsanto, formerly one of the largest biotech companies in America, was based in St. Louis until it was acquired by Bayer AG in 2018. It is now part of the Crop Science Division of Bayer Corporation, Bayer's U.S. subsidiary. Tourism, services, and wholesale/retail trade follow manufacturing in importance—tourism benefits from the many rivers, lakes, caves, parks, etc., throughout the state. In addition to a network of state parks, Missouri is home to Gateway Arch National Park in St. Louis and the Ozark National Scenic Riverways. A much-visited show cave is Meramec Caverns in Stanton. Missouri is the only state in the Union to have two Federal Reserve Banks: one in Kansas City (serving western Missouri, Kansas, Nebraska, Oklahoma, Colorado, northern New Mexico, and Wyoming) and one in St. Louis (serving eastern Missouri, southern Illinois, southern Indiana, western Kentucky, western Tennessee, northern Mississippi, and all of Arkansas). The state's seasonally adjusted unemployment rate in April 2017 was 3.9 percent. In 2017, Missouri became a right-to-work state, but in August 2018, Missouri voters rejected a right-to-work law with 67% to 33%. Taxation Personal income is taxed in ten different earning brackets, ranging from 1.5% to 6.0%. Missouri's sales tax rate for most items is 4.225%, with some additional local levies. More than 2,500 Missouri local governments rely on property taxes levied on real property (real estate) and personal property. Most personal property is exempt, except for motorized vehicles. Exempt real estate includes property owned by governments and property used as nonprofit cemeteries, exclusively for religious worship, for schools and colleges, and purely charitable purposes. There is no inheritance tax and limited Missouri estate tax related to federal estate tax collection. In 2017, the Tax Foundation rated Missouri as having the 5th-best corporate tax index, and the 15th-best overall tax climate. Missouri's corporate income tax rate is 6.25%; however, 50% of federal income tax payments may be deducted before computing taxable income, leading to an effective rate of 5.2%. Energy In 2012, Missouri had roughly 22,000 MW of installed electricity generation capacity. In 2011, 82% of Missouri's electricity was generated by coal. Ten percent was generated from the state's only nuclear power plant, the Callaway Plant in Callaway County, northeast of Jefferson City. Five percent was generated by natural gas. One percent was generated by hydroelectric sources, such as the dams for Truman Lake and Lake of the Ozarks. Missouri has a small but growing amount of wind and solar power—wind capacity increased from 309 MW in 2009 to 459 MW in 2011, while photovoltaics have increased from 0.2 MW to 1.3 MW over the same period. As of 2016, Missouri's solar installations had reached 141 MW. Oil wells in Missouri produced 120,000 barrels of crude oil in fiscal 2012. There are no oil refineries in Missouri. Transportation Airports Missouri has two major airport hubs: St. Louis Lambert International Airport and Kansas City International Airport. Southern Missouri has the Springfield–Branson National Airport (SGF) with multiple non-stop destinations. Residents of Mid-Missouri use Columbia Regional Airport (COU) to fly to Chicago (ORD), Dallas (DFW) or Denver (DEN). Rail Two of the nation's three busiest rail centers are in Missouri. Kansas City is a major railroad hub for BNSF Railway, Norfolk Southern Railway, Kansas City Southern Railway, and Union Pacific Railroad, and every class1 railroad serves Missouri. Kansas City is the second-largest freight rail center in the US (but is first in the amount of tonnage handled). Like Kansas City, St. Louis is a major destination for train freight. Springfield remains an operational hub for BNSF Railway. Amtrak passenger trains serve Kansas City, La Plata, Jefferson City, St. Louis, Lee's Summit, Independence, Warrensburg, Hermann, Washington, Kirkwood, Sedalia, and Poplar Bluff. A proposed high-speed rail route in Missouri as part of the Chicago Hub Network has received $31 million in funding. The only urban light rail/subway system operating in Missouri is MetroLink, which connects the city of St. Louis with suburbs in Illinois and St. Louis County. It is one of the largest systems (by track mileage) in the United States. The KC Streetcar in downtown Kansas City opened in May 2016. The Gateway Multimodal Transportation Center in St. Louis is the largest active multi-use transportation center in the state. It is in downtown St. Louis, next to the historic Union Station complex. It serves as a hub center/station for MetroLink, the MetroBus regional bus system, Greyhound, Amtrak, and taxi services. The proposed Missouri Hyperloop would connect St. Louis, Kansas City, and Columbia, reducing travel times to around a half hour. Bus Many cities have regular fixed-route systems, and many rural counties have rural public transit services. Greyhound and Trailways provide inter-city bus service in Missouri. Megabus serves St. Louis, but discontinued service to Columbia and Kansas City in 2015. Rivers The Mississippi River and Missouri River are commercially navigable over their entire lengths in Missouri. The Missouri was channelized through dredging and jetties, and the Mississippi was given a series of locks and dams to avoid rocks and deepen the river. St. Louis is a major destination for barge traffic on the Mississippi. Roads Following the passage of Amendment 3 in late 2004, the Missouri Department of Transportation (MoDOT) began its Smoother, Safer, Sooner road-building program with a goal of bringing of highways up to good condition by December 2007. From 2006 to 2011 traffic deaths have decreased annually from 1,257 in 2005, to 1,096 in 2006, to 992 in 2007, to 960 in 2008, to 878 in 2009, to 821 in 2010, to 786 in 2011. Law and government The current Constitution of Missouri, the fourth constitution for the state, was adopted in 1945. It provides for three branches of government: the legislative, judicial, and executive branches. The legislative branch consists of two bodies: the House of Representatives and the Senate. These bodies comprise the Missouri General Assembly. The House of Representatives has 163 members apportioned based on the last decennial census. The Senate consists of 34 members from districts of approximately equal populations. The judicial department comprises the Supreme Court of Missouri, which has seven judges, the Missouri Court of Appeals (an intermediate appellate court divided into three districts), sitting in Kansas City, St. Louis, and Springfield, and 45 Circuit Courts which function as local trial courts. The executive branch is headed by the Governor of Missouri and includes five other statewide elected offices. Following the death of State Auditor Tom Schweich in 2015, only one of Missouri's statewide elected offices is held by a Democrat: his successor Nicole Galloway. Harry S Truman (1884–1972), the 33rd President of the United States (Democrat, 1945–1953), was born in Lamar. He was a judge in Jackson County and then represented the state in the United States Senate for ten years, before being elected vice-president in 1944. He lived in Independence after retiring as president in 1953. In a 2020 study, Missouri was ranked as 48th on the "Cost of Voting Index" with only Texas and Georgia ranking higher. Former status as a political bellwether Missouri was widely regarded as a bellwether in American politics, often making it a swing state. The state had a longer stretch of supporting the winning presidential candidate than any other state, having voted with the nation in every election from 1904 to 2004 with a single exception: 1956 when Democratic candidate Adlai Stevenson of neighboring Illinois lost the election despite carrying Missouri. However, in recent years, areas of the state outside Kansas City, St. Louis, and Columbia have shifted heavily to the right, and so the state is no longer considered a bellwether by most analysts. The last Democrat to win Missouri's electoral votes was Bill Clinton in 1996; the state twice voted against Democrat Barack Obama, who won nationwide in 2008 and 2012. Missouri voted for Mitt Romney by nearly 10% in 2012 and voted for Donald Trump by almost 18% in 2016 and 15% in 2020. On October 24, 2012, there were 4,190,936 registered voters. At the state level, both Democratic Senator Claire McCaskill and Democratic Governor Jay Nixon were re-elected. On November 3, 2020, there were 4,318,758 registered voters, with 3,026,028 voting (70.1%). By this time, the state had favored more Republican candidates for federal offices. The offices held by Democratic party officials a decade before were subsequently held by Republican Senator Josh Hawley and Republican Governor Mike Parson. Missouri's accuracy rate for the last 29 presidential elections is now 89.66%. This percentage is on par with that of Ohio, which has voted for the winner of every presidential election since 1896, except in 1944, 1960 and 2020, with no Republican ever winning the White House without the state. Nevada has been carried by the winner of every presidential election since 1912, with only two exceptions: 1976 and 2016. New Mexico has voted for the winner of every presidential election since its statehood in 1912, except in 1976, 2000 and 2016. Laissez-faire alcohol and tobacco laws Missouri has been known for its population's generally "stalwart, conservative, noncredulous" attitude toward regulatory regimes, which is one of the origins of the state's unofficial nickname, the "Show-Me State". As a result, and combined with the fact that Missouri is one of America's leading alcohol states, regulation of alcohol and tobacco in Missouri is among the most laissez-faire in America. For 2013, the annual "Freedom in the 50 States" study prepared by the Mercatus Center at George Mason University ranked Missouri as #3 in America for alcohol freedom and #1 for tobacco freedom (#7 for freedom overall). The study notes that Missouri's "alcohol regime is one of the least restrictive in the United States, with no blue laws and taxes well below average", and that "Missouri ranks best in the nation on tobacco freedom". Missouri law makes it "an improper employment practice" for an employer to refuse to hire, to fire, or otherwise to disadvantage any person because that person lawfully uses alcohol and/or tobacco products outside of work. With a large German immigrant population and the development of a brewing industry, Missouri always has had among the most permissive alcohol laws in the United States. It has never enacted statewide prohibition. Missouri voters rejected prohibition in three separate referenda in 1910, 1912, and 1918. Alcohol regulation did not begin in Missouri until 1934. Today, alcohol laws are controlled by the state government, and local jurisdictions are prohibited from going beyond those state laws. Missouri has no statewide open container law or prohibition on drinking in public, no alcohol-related blue laws, no local option, no precise locations for selling liquor by the package (allowing even drug stores and gas stations to sell any kind of liquor), and no differentiation of laws based on alcohol percentage. State law protects persons from arrest or criminal penalty for public intoxication. Missouri law expressly prohibits any jurisdiction from going dry. Missouri law also expressly allows parents and guardians to serve alcohol to their children. The Power & Light District in Kansas City is one of the few places in the United States where a state law explicitly allows persons over 21 to possess and consume open containers of alcohol in the street (as long as the beverage is in a plastic cup). As for tobacco (as of July 2016), Missouri has the lowest cigarette excise taxes in the United States, at 17 cents per pack, and the state electorate voted in 2002, 2006, 2012, and twice in 2016 to keep it that way. In 2007, Forbes named Missouri's largest metropolitan area, St. Louis, America's "best city for smokers". According to the Centers for Disease Control and Prevention, in 2008 Missouri had the fourth highest percentage of adult smokers among U.S states, at 24.5%. Although federal law prohibits the sale of tobacco to persons under 21, tobacco products can be distributed to persons under 21 by family members on private property. No statewide smoking ban ever has been seriously entertained before the Missouri General Assembly, and in October 2008, a statewide survey by the Missouri Department of Health and Senior Services found that only 27.5% of Missourians support a statewide ban on smoking in all bars and restaurants. Missouri state law permits restaurants seating less than 50 people, bars, bowling alleys, and billiard parlors to decide their own smoking policies, without limitation. Missouri Cannabis Laws In 2014, a Republican-led legislature and Democratic governor Jay Nixon enacted a series of laws to partially decriminalize possession of cannabis by making first-time possession of up to 10 grams no longer punishable with jail time and legalizing CBD oil. In November 2018, 66% of voters approved a constitutional amendment that established a right to medical marijuana and a system for licensing, regulating, and taxing medical marijuana. Counties Missouri has 114 counties and one independent city, St. Louis, which is Missouri's most densely populated—5,140 people per square mile. The largest counties by population are St. Louis (996,726), Jackson (698,895), and St. Charles (395,504). Worth County is the smallest (2,057). The largest counties by size are Texas (1,179 square miles) and Shannon (1,004). Worth County is the smallest (266). Cities and towns Jefferson City is the capital city of Missouri, while the state's five largest cities are Kansas City, St. Louis, Springfield, Columbia, and Independence. St. Louis is the principal city of the largest metropolitan area in Missouri, composed of 17 counties and the independent city of St. Louis; eight of its counties are in Illinois. As of 2019, St. Louis was the 21st-largest metropolitan area in the nation with 2.91 million people. However, if ranked using Combined Statistical Area, it is 20th-largest with 2.91 million people in 2019. Some of the major cities making up the St. Louis metro area in Missouri are O'Fallon, St. Charles, St. Peters, Florissant, Chesterfield, Wentzville, Wildwood, University City, and Ballwin. Kansas City is Missouri's largest city and the principal city of the fourteen-county Kansas City Metropolitan Statistical Area, including five counties in the state of Kansas. As of 2019, it was the 31st-largest metropolitan area in the U.S., with 2.16 million people. In the Combined Statistical Area in 2019, it ranked 27th with 2.51 million. Some of the other major cities comprising the Kansas City metro area in Missouri include Independence, Lee's Summit, Blue Springs, Liberty, Raytown, Gladstone, and Grandview. Springfield is Missouri's third-largest city and the principal city of the Springfield-Branson Metropolitan Area, which has a population of 549,423 and includes seven counties in southwestern Missouri. Branson is a major tourist attraction in the Ozarks in southwest Missouri. Some of the other major cities comprising the Springfield-Branson metro area include Nixa, Ozark, and Republic. Education Missouri State Board of Education The Missouri State Board of Education has general authority over all public education in the state of Missouri. It is made up of eight citizens appointed by the governor and confirmed by the Missouri Senate. Primary and secondary schools Education is compulsory from ages seven to seventeen. It is required that any parent, guardian, or another person with custody of a child between the ages of seven and seventeen, the compulsory attendance age for the district, must ensure the child is enrolled in and regularly attends public, private, parochial school, home school or a combination of schools for the full term of the school year. Compulsory attendance also ends when children complete sixteen credits in high school. Children in Missouri between the ages of five and seven are not required to be enrolled in school. However, if they are enrolled in a public school, their parent, guardian, or custodian must ensure they regularly attend. Missouri schools are commonly but not exclusively divided into three tiers of primary and secondary education: elementary school, middle school or junior high school and high school. The public school system includes kindergarten to 12th grade. District territories are often complex in structure. In some cases, elementary, middle, and junior high schools of a single district feed into high schools in another district. As another example, special education and related services for students in the twenty-two school districts of St. Louis County are provided by staff employeed by a special school sistrict, a local education agency that serves students county-wide. High school athletics and competitions are governed by the Missouri State High School Activities Association (MSHSAA). Homeschooling is legal in Missouri and is an option to meet the compulsory education requirement. It is neither monitored nor regulated by the state's Department of Elementary and Secondary Education. Another gifted school is the Missouri Academy of Science, Mathematics and Computing, which is at the Northwest Missouri State University. Colleges and universities The University of Missouri System is Missouri's statewide public university system. The flagship institution and largest university in the state is the University of Missouri in Columbia. The others in the system are University of Missouri–Kansas City, University of Missouri–St. Louis, and Missouri University of Science and Technology in Rolla. During the late nineteenth and early twentieth century, the state established a series of normal schools in each region of the state, originally named after the geographic districts: Northeast Missouri State University (now Truman State University) (1867), Central Missouri State University (now the University of Central Missouri) (1871), Southeast Missouri State University (1873), Southwest Missouri State University (now Missouri State University) (1905), Northwest Missouri State University (1905), Missouri Western State University (1915), Maryville University (1872) and Missouri Southern State University (1937). Lincoln University and Harris–Stowe State University were established in the mid-nineteenth century and are historically black colleges and universities. Among private institutions Washington University in St. Louis and Saint Louis University are two top ranked schools in the US. There are numerous junior colleges, trade schools, church universities and other private universities in the state. A.T. Still University was the first osteopathic medical school in the world. Hannibal–LaGrange University in Hannibal, Missouri, was one of the first colleges west of the Mississippi (founded 1858 in LaGrange, Missouri, and moved to Hannibal in 1928). The state funds a $2000, renewable merit-based scholarship, Bright Flight, given to the top three percent of Missouri high school graduates who attend a university in-state. The 19th-century border wars between Missouri and Kansas have continued as a sports rivalry between the University of Missouri and University of Kansas. The rivalry was chiefly expressed through football and basketball games between the two universities, but since Missouri left the Big 12 Conference in 2012, the teams no longer regularly play one another. It was the oldest college rivalry west of the Mississippi River and the second-oldest in the nation. Each year when the universities met to play, the game was coined the "Border War." Following the game, an exchange occurred where the winner took a historic Indian War Drum, which had been passed back and forth for decades. Though Missouri and Kansas no longer have an annual game after the University of Missouri moved to the Southeastern Conference, rivalry still exists between them. Culture Music Many well-known musicians were born or have lived in Missouri. These include guitarist and rock pioneer Chuck Berry, singer and actress Josephine Baker, "Queen of Rock" Tina Turner, pop singer-songwriter Sheryl Crow, Michael McDonald of the Doobie Brothers, and rappers Nelly, Chingy and Akon, all of whom are either current or former residents of St. Louis. Country singers from Missouri include Perryville native Chris Janson, New Franklin native Sara Evans, Cantwell native Ferlin Husky, West Plains native Porter Wagoner, Tyler Farr of Garden City, and Mora native Leroy Van Dyke, along with bluegrass musician Rhonda Vincent, a native of Greentop. Rapper Eminem was born in St. Joseph and also lived in Savannah and Kansas City. Ragtime composer Scott Joplin lived in St. Louis and Sedalia. Jazz saxophonist Charlie Parker lived in Kansas City. Rock and Roll singer Steve Walsh of the group Kansas was born in St. Louis and grew up in St. Joseph. The Kansas City Symphony and the St. Louis Symphony Orchestra are the state's major orchestras. The latter is the nation's second-oldest symphony orchestra and achieved prominence in recent years under conductor Leonard Slatkin. Branson is well known for its music theaters, most of which bear the name of a star performer or musical group. Literature Missouri is the native state of Mark Twain. His novels The Adventures of Tom Sawyer and The Adventures of Huckleberry Finn are set in his boyhood hometown of Hannibal. Authors Kate Chopin, T. S. Eliot and Tennessee Williams were from St. Louis. Kansas City-born writer William Least Heat-Moon resides in Rocheport. He is best known for Blue Highways, a chronicle of his travels to small towns across America, which was on The New York Times Bestseller list for 42 weeks in 1982–1983. Novelist Daniel Woodrell, known for depicting life in the Missouri Ozarks, was born in Springfield and lives in West Plains. Film Filmmaker, animator, and businessman Walt Disney spent part of his childhood in the Linn County town of Marceline before settling in Kansas City. Disney began his artistic career in Kansas City, where he founded the Laugh-O-Gram Studio. Several film versions of Mark Twain's novels The Adventures of Tom Sawyer and The Adventures of Huckleberry Finn have been made. Meet Me in St. Louis, a musical involving the 1904 St. Louis World's Fair, starred Judy Garland. Part of the 1983 road movie National Lampoon's Vacation was shot on location in Missouri, for the Griswolds' trip from Chicago to Los Angeles. The Thanksgiving holiday film Planes, Trains, and Automobiles was partially shot at Lambert–St. Louis International Airport. White Palace was filmed in St. Louis. The award-winning 2010 film Winter's Bone was shot in the Ozarks of Missouri. Up in the Air starring George Clooney was filmed in St. Louis. John Carpenter's Escape from New York was filmed in St. Louis during the early 1980s due to a large number of abandoned buildings in the city. The 1973 movie Paper Moon, which starred Ryan and Tatum O'Neal, was partly filmed in St. Joseph. Most of HBO's film Truman (1995) was filmed in Kansas City, Independence, and the surrounding area; Gary Sinise won an Emmy for his portrayal of Harry Truman in the film. Ride With the Devil (1999), starring Jewel and Tobey Maguire, was filmed in the countryside of Jackson County (where the historical events of the film actually took place). Gone Girl, a 2014 film starring Ben Affleck, Rosamund Pike, Neil Patrick Harris, and Tyler Perry, was filmed in Cape Girardeau. Sports Missouri hosted the 1904 Summer Olympics at St. Louis, the first time the games were hosted in the United States. Professional major league teams: MLB: St. Louis Cardinals, Kansas City Royals NFL: Kansas City Chiefs NHL: St. Louis Blues MLS: St. Louis MLS team (Founded 2019, has not started play yet) Former professional major league teams: National Football League: St. Louis Cardinals (moved from Chicago in 1960; moved to Tempe, Arizona, in 1988 and are now the Arizona Cardinals) St. Louis All Stars (active in 1923 only) Kansas City Blues/Cowboys (active 1924–1926, folded) St. Louis Gunners (independent team, joined the NFL for the last three weeks of the 1934 season and folded thereafter) St. Louis Rams 1995–2015 moved from Los Angeles and then back to Los Angeles Major League Baseball (American League): St. Louis Browns (moved from Milwaukee in 1902; moved to Baltimore, Maryland after the 1953 season and are now the Baltimore Orioles) Kansas City Athletics (moved from Philadelphia in 1955; moved to Oakland, California after the 1967 season and are now the Oakland Athletics) National Basketball Association: St. Louis Bombers (charter BAA franchise in 1946, joined the NBA when it formed in 1949; ceased operations in 1950) St. Louis Hawks (moved from Milwaukee in 1955; moved to Atlanta in 1968 and are now the Atlanta Hawks) Kansas City Kings (moved from Cincinnati in 1972; moved to Sacramento in 1985 and are now the Sacramento Kings; prior to locating in Kansas City, they were known as the Cincinnati Royals) National Hockey League: Kansas City Scouts (1974 expansion team, moved to Denver, Colorado in 1976 and became the Colorado Rockies, and would move again to Newark, New Jersey; now called the New Jersey Devils) St. Louis Eagles (1934 relocation of the original Ottawa Senators, folded after the 1934–35 season) Major League Soccer: Kansas City Wiz/Kansas City Wizards (founded in 1995, but moved from Kansas City, Missouri, to Kansas City, Kansas, in 2010 and became Sporting Kansas City) See also Index of Missouri-related articles List of people from Missouri Outline of Missouri Notes References External links Missouri State Guide, from the Library of Congress Scientific American, "Ancient Man in Missouri", 11 September 1880, p. 169 1821 establishments in the United States Midwestern United States States and territories established in 1821 States of the United States Contiguous United States

19574

https://en.wikipedia.org/wiki/Monitor

Monitor

Monitor or monitor may refer to: Places Monitor, Alberta Monitor, Indiana, town in the United States Monitor, Kentucky Monitor, Oregon, unincorporated community in the United States Monitor, Washington Monitor, Logan County, West Virginia Monitor, Monroe County, West Virginia Loope, California, formerly Monitor Arts, entertainment, and media Fictional characters Monitor (Mar Novu), a DC comics character Monitors (DC Comics), a group of fictional comic book characters, who appear in books published by DC Comics Periodicals Monitor (Bulgarian newspaper), a modern politics newspaper in Bulgaria since 1998 Monitor (magazine), a weekly newsmagazine published in Podgorica, Montenegro Monitor (Polish newspaper), an 18th-century Polish newspaper Concord Monitor, a daily newspaper in New Hampshire, USA The Monitor (Sydney), a biweekly newspaper published between 1826 and 1841 Television Monitor (UK TV programme), a BBC arts programme which aired from 1958 to 1965 Monitor (U.S. TV program), a 1983–1984 American newsmagazine television program that aired on NBC Other uses in arts, entertainment, and media Monitor (radio program), an American radio program which aired on NBC radio from 1955 to 1975 Monitor (band), an American punk rock band Monitor, a 1975 work by English video artist Stephen Partridge Monitor, a Czech record label sold to EMI Czech Republic in 1994 The Christian Science Monitor, an international news organization founded in 1908, that publishes self-titled periodicals Brands and enterprises Monitor, a trade name for Methamidophos, a phosphorus based pesticide Monitor Deloitte, a management consulting firm Computing and technology Monitor (synchronization), an approach to synchronize two or more computer tasks that use a shared resource Computer monitor, an output device that displays information in pictorial form In-ear monitors, earpieces for performers on stage or in a studio Machine code monitor, program allowing users to view or change memory locations on a computer Resident monitor, an early primitive operating system Stage monitors or foldback (sound engineering), loudspeakers for performers on stage Studio monitor, professional grade loudspeaker designed specifically for audio production and engineering System monitor, a hardware or software component used to monitor system resources and performance in a computer system Virtual machine monitor, or hypervisor, is a software that creates and runs virtual machines, allowing multiple operating system images to run simultaneously on a single piece of hardware Firefox Monitor, email monitoring application (see Firefox version history) Healthcare Monitor (NHS), a former regulator for health services in England Monitor, a person who performs self-monitoring Clinical monitor or clinical research associate, a health-care professional who works in monitoring of clinical trials Ships Monitor (warship), a heavily armed warship design preceding the battleship, named for the USS Monitor Breastwork monitor, a type of turret ship with a raised superstructure and higher freeboard than the first monitors List of breastwork monitors of the Royal Navy List of Russian and Soviet monitors River monitor, a type of warship designed for fighting on inland waterways , a shallow-draught turret ship of the United States Navy Water jets Monitor, a pressurised water jet used in hydraulic mining Fire monitor, a water jet used for firefighting Other meanings Monitor (architecture), a subsidiary roof structure Hall monitor, a student who supervises the corridors of a school Monitor lizard, any lizard of the family Varanidae (once believed to warn of crocodile attacks) See also Monitoring (disambiguation) The Monitor (disambiguation) The Monitors (disambiguation) Moniteur (disambiguation)

19577

https://en.wikipedia.org/wiki/Moses

Moses

Moses () is considered the most important prophet in Judaism and one of the most important prophets in Christianity, Islam, the Druze faith, the Baháʼí Faith and other Abrahamic religions. According to both the Bible and the Quran, Moses was the leader of the Israelites and lawgiver to whom the authorship, or "acquisition from heaven", of the Torah (the first five books of the Bible) is attributed. According to the Book of Exodus, Moses was born in a time when his people, the Israelites, an enslaved minority, were increasing in population and, as a result, the Egyptian Pharaoh worried that they might ally themselves with Egypt's enemies. Moses's Hebrew mother, Jochebed, secretly hid him when the Pharaoh ordered all newborn Hebrew boys to be killed in order to reduce the population of the Israelites. Through the Pharaoh's daughter (identified as Queen Bithia in the Midrash), the child was adopted as a foundling from the Nile river and grew up with the Egyptian royal family. After killing an Egyptian slave-master who was beating a Hebrew, Moses fled across the Red Sea to Midian, where he encountered the Angel of the Lord, speaking to him from within a burning bush on Mount Horeb, which he regarded as the Mountain of God. God sent Moses back to Egypt to demand the release of the Israelites from slavery. Moses said that he could not speak eloquently, so God allowed Aaron, his elder brother, to become his spokesperson. After the Ten Plagues, Moses led the Exodus of the Israelites out of Egypt and across the Red Sea, after which they based themselves at Mount Sinai, where Moses received the Ten Commandments. After 40 years of wandering in the desert, Moses died on Mount Nebo at the age of 120, within sight of the Promised Land. Generally, Moses is seen as a legendary figure, whilst retaining the possibility that Moses or a Moses-like figure existed in the 13th century BCE. Rabbinical Judaism calculated a lifespan of Moses corresponding to 1391–1271 BCE; Jerome suggested 1592 BCE, and James Ussher suggested 1571 BCE as his birth year. Etymology of name An Egyptian root msy ('child of') has been considered as a possible etymology, arguably an abbreviation of a theophoric name, as for example in Egyptian names like Thutmoses ('child of Thoth') and Ramesses ('child of Ra'), with the god's name omitted. Abraham Yahuda, based on the spelling given in the Tanakh, argues that it combines "water" or "seed" and "pond, expanse of water," thus yielding the sense of "child of the Nile" (mw-š). However, Kenneth Kitchen argued that an Egyptian origin for the name was unlikely, as the sounds in the Hebrew m-š-h do not correspond to the pronunciation of Egyptian msy in the relevant time period. The biblical account of Moses's birth provides him with a folk etymology to explain the ostensible meaning of his name. He is said to have received it from the Pharaoh's daughter: "he became her son. She named him Moses (מֹשֶׁה Mōše), saying, 'I drew him out (מְשִׁיתִֽהוּ mǝšīṯīhū) of the water'." This explanation links it to the Semitic root משׁה m-š-h, meaning "to draw out". The eleventh-century Tosafist Isaac b. Asher haLevi noted that the princess names him the active participle Drawer-out (מֹשֶׁה mōše), not the passive participle Drawn-out (נִמְשֶׁה nīmše), in effect prophesying that Moses would draw others out (of Egypt); this has been accepted by some scholars. The Hebrew etymology in the Biblical story may reflect an attempt to cancel out traces of Moses's Egyptian origins. The Egyptian character of his name was recognized as such by ancient Jewish writers like Philo and Josephus. Philo linked Moses's name () to the Egyptian (Coptic) word for 'water' (möu, ), in reference to his finding in the Nile and the biblical folk etymology. Josephus, in his Antiquities of the Jews, claims that the second element, -esês, meant 'those who are saved'. The problem of how an Egyptian princess, known to Josephus as Thermutis (identified as Tharmuth) and to 1 Chronicles 4:18 as Bithiah, could have known Hebrew puzzled medieval Jewish commentators like Abraham ibn Ezra and Hezekiah ben Manoah. Hezekiah suggested she either converted or took a tip from Jochebed. Biblical narrative Prophet and deliverer of Israel The Israelites had settled in the Land of Goshen in the time of Joseph and Jacob, but a new Pharaoh arose who oppressed the children of Israel. At this time Moses was born to his father Amram, son (or descendant) of Kehath the Levite, who entered Egypt with Jacob's household; his mother was Jochebed (also Yocheved), who was kin to Kehath. Moses had one older (by seven years) sister, Miriam, and one older (by three years) brother, Aaron. The Pharaoh had commanded that all male Hebrew children born would be drowned in the river Nile, but Moses's mother placed him in an ark and concealed the ark in the bulrushes by the riverbank, where the baby was discovered and adopted by Pharaoh's daughter, and raised as an Egyptian. One day, after Moses had reached adulthood, he killed an Egyptian who was beating a Hebrew. Moses, in order to escape the Pharaoh's death penalty, fled to Midian (a desert country south of Judah), where he married Zipporah. There, on Mount Horeb, God appeared to Moses as a burning bush, revealed to Moses his name YHWH (probably pronounced Yahweh) and commanded him to return to Egypt and bring his chosen people (Israel) out of bondage and into the Promised Land (Canaan). During the journey, God tried to kill Moses, but Zipporah saved his life. Moses returned to carry out God's command, but God caused the Pharaoh to refuse, and only after God had subjected Egypt to ten plagues did the Pharaoh relent. Moses led the Israelites to the border of Egypt, but there God hardened the Pharaoh's heart once more, so that he could destroy the Pharaoh and his army at the Red Sea Crossing as a sign of his power to Israel and the nations. After defeating the Amalekites in Rephidim, Moses led the Israelites to Mount Sinai, where he was given the Ten Commandments from God, written on stone tablets. However, since Moses remained a long time on the mountain, some of the people feared that he might be dead, so they made a statue of a golden calf and worshipped it, thus disobeying and angering God and Moses. Moses, out of anger, broke the tablets, and later ordered the elimination of those who had worshiped the golden statue, which was melted down and fed to the idolaters. He also wrote the ten commandments on a new set of tablets. Later at Mount Sinai, Moses and the elders entered into a covenant, by which Israel would become the people of YHWH, obeying his laws, and YHWH would be their god. Moses delivered the laws of God to Israel, instituted the priesthood under the sons of Moses's brother Aaron, and destroyed those Israelites who fell away from his worship. In his final act at Sinai, God gave Moses instructions for the Tabernacle, the mobile shrine by which he would travel with Israel to the Promised Land. From Sinai, Moses led the Israelites to the Desert of Paran on the border of Canaan. From there he sent twelve spies into the land. The spies returned with samples of the land's fertility, but warned that its inhabitants were giants. The people were afraid and wanted to return to Egypt, and some rebelled against Moses and against God. Moses told the Israelites that they were not worthy to inherit the land, and would wander the wilderness for forty years until the generation who had refused to enter Canaan had died, so that it would be their children who would possess the land. Later on, Korah was punished for leading a revolt against Moses. When the forty years had passed, Moses led the Israelites east around the Dead Sea to the territories of Edom and Moab. There they escaped the temptation of idolatry, conquered the lands of Og and Sihon in Transjordan, received God's blessing through Balaam the prophet, and massacred the Midianites, who by the end of the Exodus journey had become the enemies of the Israelites due to their notorious role in enticing the Israelites to sin against God. Moses was twice given notice that he would die before entry to the Promised Land: in Numbers 27:13, once he had seen the Promised Land from a viewpoint on Mount Abarim, and again in Numbers 31:1 once battle with the Midianites had been won. On the banks of the Jordan River, in sight of the land, Moses assembled the tribes. After recalling their wanderings he delivered God's laws by which they must live in the land, sang a song of praise and pronounced a blessing on the people, and passed his authority to Joshua, under whom they would possess the land. Moses then went up Mount Nebo, looked over the Promised Land spread out before him, and died, at the age of one hundred and twenty. Lawgiver of Israel Moses is honoured among Jews today as the "lawgiver of Israel", and he delivers several sets of laws in the course of the four books. The first is the Covenant Code, the terms of the covenant which God offers to the Israelites at Mount Sinai. Embedded in the covenant are the Decalogue and the Book of the Covenant. The entire Book of Leviticus constitutes a second body of law, the Book of Numbers begins with yet another set, and the Book of Deuteronomy another. Moses has traditionally been regarded as the author of those four books and the Book of Genesis, which together comprise the Torah, the first section of the Hebrew Bible. Historicity Scholars hold different opinions on the status of Moses in scholarship. For instance, according to William G. Dever, the modern scholarly consensus is that the biblical person of Moses is largely mythical while also holding that "a Moses-like figure may have existed somewhere in the southern Transjordan in the mid-late 13th century B.C." and that "archeology can do nothing" to prove or confirm either way. However, according to Solomon Nigosian, there are actually three prevailing views among biblical scholars: one is that Moses is not a historical figure, another view strives to anchor the decisive role he played in Israelite religion, and a third that argues there are elements of both history and legend from which "these issues are hotly debated unresolved matters among scholars." According to Brian Britt, there is divide amongst scholars when discussing matters on Moses that threatens gridlock. Jan Assmann argues that we cannot know if Moses ever lived because there are no traces of him outside tradition. Though the names of Moses and others in the biblical narratives are Egyptian and contain genuine Egyptian elements, no extrabiblical sources point clearly to Moses. No references to Moses appear in any Egyptian sources prior to the fourth century BCE, long after he is believed to have lived. No contemporary Egyptian sources mention Moses, or the events of Exodus–Deuteronomy, nor has any archaeological evidence been discovered in Egypt or the Sinai wilderness to support the story in which he is the central figure. David Adams Leeming states that Moses is a mythic hero and the central figure in Hebrew mythology. However, according to John van Seters, any mythical elements in sources on Moses do not indicate that there was no Moses, nor that the tales do not include historical information, but that in the Torah, memory revises history and makes myths out of it. The Oxford Companion to the Bible states that the historicity of Moses is the most reasonable assumption to be made about him as his absence would leave a vacuum that cannot be explained away. Oxford Biblical Studies states that although few modern scholars are willing to support the traditional view that Moses himself wrote the five books of the Torah, there are certainly those who regard the leadership of Moses as too firmly based in Israel's corporate memory to be dismissed as pious fiction. The story of Moses's discovery picks up a familiar motif in ancient Near Eastern mythological accounts of the ruler who rises from humble origins. Thus Sargon of Akkad's Akkadian account of his own origins runs: My mother, the high priestess, conceived; in secret she bore me She set me in a basket of rushes, with bitumen she sealed my lid She cast me into the river which rose over me. Moses's story, like those of the other patriarchs, most likely had a substantial oral prehistory, (he is mentioned in the Book of Jeremiah and the Book of Isaiah) and his name is apparently very ancient, as the tradition found in Exodus no longer understands its original meaning. Nevertheless, the completion of the Torah and its elevation to the centre of post-Exilic Judaism was as much or more about combining older texts as writing new ones – the final Pentateuch was based on existing traditions. Isaiah, written during the Exile (i.e., in the first half of the 6th century BCE), testifies of tension between the people of Judah and the returning post-Exilic Jews (the "gôlâ"), stating that God is the father of Israel and that Israel's history begins with the Exodus and not with Abraham. The conclusion to be inferred from this and similar evidence (e.g., the Book of Ezra and the Book of Nehemiah), is that the figure of Moses and the story of the Exodus must have been preeminent among the people of Judah at the time of the Exile and after, serving to support their claims to the land in opposition to those of the returning exiles. A theory developed by Cornelis Tiele in 1872, which has proved influential, argued that Yahweh was a Midianite god, introduced to the Israelites by Moses, whose father-in-law Jethro was a Midianite priest. It was to such a Moses that Yahweh reveals his real name, hidden from the Patriarchs who knew him only as El Shaddai. Against this view is the modern consensus that most of the Israelites were native to Palestine. Martin Noth argued that the Pentateuch uses the figure of Moses, originally linked to legends of a Transjordan conquest, as a narrative bracket or late redactional device to weld together 4 of the 5, originally independent, themes of that work. and , the latter in a somewhat sensationalist manner, have suggested that the Moses story is a distortion or transmogrification of the historical pharaoh Amenmose (c. 1200 BCE), who was dismissed from office and whose name was later simplified to msy (Mose). Aidan Dodson regards this hypothesis as "intriguing, but beyond proof." Rudolf Smend argues that the two details about Moses that were most likely to be historical are his name, of Egyptian origin, and his marriage to a Midianite woman, details which seem unlikely to have been invented by the Israelites; in Smend's view, all other details given in the biblical narrative are too mythically charged to be seen as accurate data. The name King Mesha of Moab has been linked to that of Moses. Mesha also is associated with narratives of an exodus and a conquest, and several motifs in stories about him are shared with the Exodus tale and that regarding Israel's war with Moab (2 Kings 3). Moab rebels against oppression, like Moses, leads his people out of Israel, as Moses does from Egypt, and his first-born son is slaughtered at the wall of Kir-hareseth as the firstborn of Israel are condemned to slaughter in the Exodus story, in what Calvinist theologian Peter Leithart described as "an infernal Passover that delivers Mesha while wrath burns against his enemies". An Egyptian version of the tale that crosses over with the Moses story is found in Manetho who, according to the summary in Josephus, wrote that a certain Osarseph, a Heliopolitan priest, became overseer of a band of lepers, when Amenophis, following indications by Amenhotep, son of Hapu, had all the lepers in Egypt quarantined in order to cleanse the land so that he might see the gods. The lepers are bundled into Avaris, the former capital of the Hyksos, where Osarseph prescribes for them everything forbidden in Egypt, while proscribing everything permitted in Egypt. They invite the Hyksos to reinvade Egypt, rule with them for 13 years – Osarseph then assumes the name Moses – and are then driven out. Other Egyptian figures which have been postulated as candidates for a historical Moses-like figure include the princes Ahmose-ankh and Ramose, who were sons of pharaoh Ahmose I, or a figure associated with the family of pharaoh Thutmose III. Israel Knohl has proposed to identify Moses with Irsu, a Shasu who, according to Papyrus Harris I and the Elephantine Stele, took power in Egypt with the support of "Asiatics" (people from the Levant) after the death of Queen Twosret; after coming to power, Irsu and his supporters disrupted Egyptian rituals, "treating the gods like the people" and halting offerings to the Egyptian deities. They were eventually defeated and expelled by the new Pharaoh Setnakhte and, while fleeing, they abandoned large quantities of gold and silver they had stolen from the temples. Hellenistic literature Non-biblical writings about Jews, with references to the role of Moses, first appear at the beginning of the Hellenistic period, from 323 BCE to about 146 BCE. Shmuel notes that "a characteristic of this literature is the high honour in which it holds the peoples of the East in general and some specific groups among these peoples." In addition to the Judeo-Roman or Judeo-Hellenic historians Artapanus, Eupolemus, Josephus, and Philo, a few non-Jewish historians including Hecataeus of Abdera (quoted by Diodorus Siculus), Alexander Polyhistor, Manetho, Apion, Chaeremon of Alexandria, Tacitus and Porphyry also make reference to him. The extent to which any of these accounts rely on earlier sources is unknown. Moses also appears in other religious texts such as the Mishnah (c. 200 CE), Midrash (200–1200 CE), and the Quran (c. 610–653). The figure of Osarseph in Hellenistic historiography is a renegade Egyptian priest who leads an army of lepers against the pharaoh and is finally expelled from Egypt, changing his name to Moses. Hecataeus The earliest existing reference to Moses in Greek literature occurs in the Egyptian history of Hecataeus of Abdera (4th century BCE). All that remains of his description of Moses are two references made by Diodorus Siculus, wherein, writes historian Arthur Droge, he "describes Moses as a wise and courageous leader who left Egypt and colonized Judaea." Among the many accomplishments described by Hecataeus, Moses had founded cities, established a temple and religious cult, and issued laws: Droge also points out that this statement by Hecataeus was similar to statements made subsequently by Eupolemus. Artapanus The Jewish historian Artapanus of Alexandria (2nd century BCE), portrayed Moses as a cultural hero, alien to the Pharaonic court. According to theologian John Barclay, the Moses of Artapanus "clearly bears the destiny of the Jews, and in his personal, cultural and military splendor, brings credit to the whole Jewish people." Artapanus goes on to relate how Moses returns to Egypt with Aaron, and is imprisoned, but miraculously escapes through the name of YHWH in order to lead the Exodus. This account further testifies that all Egyptian temples of Isis thereafter contained a rod, in remembrance of that used for Moses's miracles. He describes Moses as 80 years old, "tall and ruddy, with long white hair, and dignified." Some historians, however, point out the "apologetic nature of much of Artapanus' work," with his addition of extra-biblical details, such as his references to Jethro: the non-Jewish Jethro expresses admiration for Moses's gallantry in helping his daughters, and chooses to adopt Moses as his son. Strabo Strabo, a Greek historian, geographer and philosopher, in his Geographica (c. 24 CE), wrote in detail about Moses, whom he considered to be an Egyptian who deplored the situation in his homeland, and thereby attracted many followers who respected the deity. He writes, for example, that Moses opposed the picturing of the deity in the form of man or animal, and was convinced that the deity was an entity which encompassed everything – land and sea: In Strabo's writings of the history of Judaism as he understood it, he describes various stages in its development: from the first stage, including Moses and his direct heirs; to the final stage where "the Temple of Jerusalem continued to be surrounded by an aura of sanctity." Strabo's "positive and unequivocal appreciation of Moses' personality is among the most sympathetic in all ancient literature." His portrayal of Moses is said to be similar to the writing of Hecataeus who "described Moses as a man who excelled in wisdom and courage." Egyptologist Jan Assmann concludes that Strabo was the historian "who came closest to a construction of Moses' religion as monotheistic and as a pronounced counter-religion." It recognized "only one divine being whom no image can represent... [and] the only way to approach this god is to live in virtue and in justice." Tacitus The Roman historian Tacitus (c. 56–120 CE) refers to Moses by noting that the Jewish religion was monotheistic and without a clear image. His primary work, wherein he describes Jewish philosophy, is his Histories (c. 100), where, according to 18th-century translator and Irish dramatist Arthur Murphy, as a result of the Jewish worship of one God, "pagan mythology fell into contempt." Tacitus states that, despite various opinions current in his day regarding the Jews' ethnicity, most of his sources are in agreement that there was an Exodus from Egypt. By his account, the Pharaoh Bocchoris, suffering from a plague, banished the Jews in response to an oracle of the god Zeus-Amun. In this version, Moses and the Jews wander through the desert for only six days, capturing the Holy Land on the seventh. Longinus The Septuagint, the Greek version of the Hebrew Bible, impressed the pagan author of the famous classical book of literary criticism, On the Sublime, traditionally attributed to Longinus. The date of composition is unknown, but it is commonly assigned to the late 1st century C.E. The writer quotes Genesis in a "style which presents the nature of the deity in a manner suitable to his pure and great being," however he does not mention Moses by name, calling him 'no chance person' () but "the Lawgiver" (, thesmothete) of the Jews," a term that puts him on a par with Lycurgus and Minos. Aside from a reference to Cicero, Moses is the only non-Greek writer quoted in the work, contextually he is put on a par with Homer,. and he is described "with far more admiration than even Greek writers who treated Moses with respect, such as Hecataeus and Strabo. Josephus In Josephus' (37 – c. 100 CE) Antiquities of the Jews, Moses is mentioned throughout. For example Book VIII Ch. IV, describes Solomon's Temple, also known as the First Temple, at the time the Ark of the Covenant was first moved into the newly built temple: According to Feldman, Josephus also attaches particular significance to Moses's possession of the "cardinal virtues of wisdom, courage, temperance, and justice." He also includes piety as an added fifth virtue. In addition, he "stresses Moses' willingness to undergo toil and his careful avoidance of bribery. Like Plato's philosopher-king, Moses excels as an educator." Numenius Numenius, a Greek philosopher who was a native of Apamea, in Syria, wrote during the latter half of the 2nd century CE. Historian Kennieth Guthrie writes that "Numenius is perhaps the only recognized Greek philosopher who explicitly studied Moses, the prophets, and the life of Jesus..." He describes his background: Justin Martyr The Christian saint and religious philosopher Justin Martyr (103–165 CE) drew the same conclusion as Numenius, according to other experts. Theologian Paul Blackham notes that Justin considered Moses to be "more trustworthy, profound and truthful because he is older than the Greek philosophers." He quotes him: Abrahamic religions Judaism Most of what is known about Moses from the Bible comes from the books of Exodus, Leviticus, Numbers, and Deuteronomy. The majority of scholars consider the compilation of these books to go back to the Persian period, 538–332 BCE, but based on earlier written and oral traditions. There is a wealth of stories and additional information about Moses in the Jewish apocrypha and in the genre of rabbinical exegesis known as Midrash, as well as in the primary works of the Jewish oral law, the Mishnah and the Talmud. Moses is also given a number of bynames in Jewish tradition. The Midrash identifies Moses as one of seven biblical personalities who were called by various names. Moses's other names were Jekuthiel (by his mother), Heber (by his father), Jered (by Miriam), Avi Zanoah (by Aaron), Avi Gedor (by Kohath), Avi Soco (by his wet-nurse), Shemaiah ben Nethanel (by people of Israel). Moses is also attributed the names Toviah (as a first name), and Levi (as a family name) (Vayikra Rabbah 1:3), Heman, Mechoqeiq (lawgiver) and Ehl Gav Ish (Numbers 12:3). In another exegesis, Moses had ascended to the first heaven until the seventh, even visited Paradise and Hell alive, after he saw the Divine vision in Mount Horeb. Jewish historians who lived at Alexandria, such as Eupolemus, attributed to Moses the feat of having taught the Phoenicians their alphabet, similar to legends of Thoth. Artapanus of Alexandria explicitly identified Moses not only with Thoth/Hermes, but also with the Greek figure Musaeus (whom he called "the teacher of Orpheus"), and ascribed to him the division of Egypt into 36 districts, each with its own liturgy. He named the princess who adopted Moses as Merris, wife of Pharaoh Chenephres. Jewish tradition considers Moses to be the greatest prophet who ever lived. Despite his importance, Judaism stresses that Moses was a human being, and is therefore not to be worshipped. Only God is worthy of worship in Judaism. To Orthodox Jews, Moses is called Moshe Rabbenu, `Eved HaShem, Avi haNeviim zya"a: "Our Leader Moshe, Servant of God, Father of all the Prophets (may his merit shield us, amen)". In the orthodox view, Moses received not only the Torah, but also the revealed (written and oral) and the hidden (the `hokhmat nistar teachings, which gave Judaism the Zohar of the Rashbi, the Torah of the Ari haQadosh and all that is discussed in the Heavenly Yeshiva between the Ramhal and his masters). Arising in part from his age of death (120 years, according to Deut. 34:7) and that "his eye had not dimmed, and his vigor had not diminished," the phrase "may you live to 120" has become a common blessing among Jews (120 is stated as the maximum age for all of Noah's descendants in Genesis 6:3). Christianity Moses is mentioned more often in the New Testament than any other Old Testament figure. For Christians, Moses is often a symbol of God's law, as reinforced and expounded on in the teachings of Jesus. New Testament writers often compared Jesus's words and deeds with Moses's to explain Jesus's mission. In Acts 7:39–43, 51–53, for example, the rejection of Moses by the Jews who worshipped the golden calf is likened to the rejection of Jesus by the Jews that continued in traditional Judaism. Moses also figures in several of Jesus's messages. When he met the Pharisee Nicodemus at night in the third chapter of the Gospel of John, he compared Moses's lifting up of the bronze serpent in the wilderness, which any Israelite could look at and be healed, to his own lifting up (by his death and resurrection) for the people to look at and be healed. In the sixth chapter, Jesus responded to the people's claim that Moses provided them manna in the wilderness by saying that it was not Moses, but God, who provided. Calling himself the "bread of life", Jesus stated that he was provided to feed God's people. Moses, along with Elijah, is presented as meeting with Jesus in all three Synoptic Gospels of the Transfiguration of Jesus in Matthew 17, Mark 9, and Luke 9, respectively. In Matthew 23, in what is the first attested use of a phrase referring to this rabbinical usage (the Graeco-Aramaic קתדרא דמשה), Jesus refers to the scribes and the Pharisees, in a passage critical of them, as having seated themselves "on the chair of Moses" (, epì tēs Mōüséōs kathédras) His relevance to modern Christianity has not diminished. Moses is considered to be a saint by several churches; and is commemorated as a prophet in the respective Calendars of Saints of the Eastern Orthodox Church, the Roman Catholic Church, and the Lutheran churches on September 4. In Eastern Orthodox liturgics for September 4, Moses is commemorated as the "Holy Prophet and God-seer Moses, on Mount Nebo". The Orthodox Church also commemorates him on the Sunday of the Forefathers, two Sundays before the Nativity. Moses is also commemorated on July 20 with Aaron, Elijah and Elisha and on April 14 with all saint Sinai monks. The Armenian Apostolic Church commemorates him as one of the Holy Forefathers in their Calendar of Saints on July 30. Mormonism Members of The Church of Jesus Christ of Latter-day Saints (colloquially called Mormons) generally view Moses in the same way that other Christians do. However, in addition to accepting the biblical account of Moses, Mormons include Selections from the Book of Moses as part of their scriptural canon. This book is believed to be the translated writings of Moses, and is included in the Pearl of Great Price. Latter-day Saints are also unique in believing that Moses was taken to heaven without having tasted death (translated). In addition, Joseph Smith and Oliver Cowdery stated that on April 3, 1836, Moses appeared to them in the Kirtland Temple (located in Kirtland, Ohio) in a glorified, immortal, physical form and bestowed upon them the "keys of the gathering of Israel from the four parts of the earth, and the leading of the ten tribes from the land of the north." Islam Moses is mentioned more in the Quran than any other individual and his life is narrated and recounted more than that of any other Islamic prophet. Islamically, Moses is described in ways which parallel the Islamic prophet Muhammad. Like Muhammad, Moses is defined in the Quran as both prophet (nabi) and messenger (rasul), the latter term indicating that he was one of those prophets who brought a scripture and law to his people. Moses is mentioned 502 times in the Quran. Most of the key events in Moses's life which are narrated in the Bible are to be found dispersed through the different chapters (suwar) of the Quran, with a story about meeting Khidr which is not found in the Bible. In the Moses story related by the Quran, Jochebed is commanded by God to place Moses in an ark and cast him on the waters of the Nile, thus abandoning him completely to God's protection. The Pharaoh's wife Asiya, not his daughter, found Moses floating in the waters of the Nile. She convinced the Pharaoh to keep him as their son because they were not blessed with any children. The Quran's account has emphasized Moses's mission to invite the Pharaoh to accept God's divine message as well as give salvation to the Israelites. According to the Quran, Moses encourages the Israelites to enter Canaan, but they are unwilling to fight the Canaanites, fearing certain defeat. Moses responds by pleading to Allah that he and his brother Aaron be separated from the rebellious Israelites. After which the Israelites are made to wander for 40 years. One of the hadith, or traditional narratives about Muhammad's life, describes a meeting in heaven between Moses and Muhammad, which resulted in Muslims observing 5 daily prayers. Huston Smith says this was "one of the crucial events in Muhammad's life". According to some Islamic tradition, Moses is believed to be buried at Maqam El-Nabi Musa, near Jericho. Baháʼí Faith Moses is one of the most important of God's messengers in the Baháʼí Faith, being designated a Manifestation of God. An epithet of Moses in Baháʼí scriptures is the "One Who Conversed with God". According to the Baháʼí Faith, Bahá'u'lláh, the founder of the faith, is the one who spoke to Moses from the Burning bush. Abdul’l-Baha, has highlighted the fact that Moses, like Abraham, had none of the makings of a great man of history, but through God's assistance he was able to achieve many great things. He is described as having been "for a long time a shepherd in the wilderness," of having had a stammer, and of being "much hated and detested" by the Pharaoh and the ancient Egyptians of his time. He is said to have been raised in an oppressive household, and to have been known, in Egypt, as a man who had committed murder – though he had done so in order to prevent an act of cruelty. Nevertheless, like Abraham, through the assistance of God, he achieved great things and gained renown even beyond the Levant. Chief among these achievements was the freeing of his people, the Hebrews, from bondage in Egypt and leading "them to the Holy Land." He is viewed as the one who bestowed on Israel 'the religious and the civil law' which gave them "honour among all nations," and which spread their fame to different parts of the world. Furthermore, through the law, Moses is believed to have led the Hebrews 'to the highest possible degree of civilization at that period.’ Abdul’l-Baha asserts that the ancient Greek philosophers regarded "the illustrious men of Israel as models of perfection." Chief among these philosophers, he says, was Socrates who "visited Syria, and took from the children of Israel the teachings of the Unity of God and of the immortality of the soul." Moses is further seen as paving the way for Bahá'u'lláh and his ultimate revelation, and as a teacher of truth, whose teachings were in line with the customs of his time. Druze faith Moses is considered an important prophet of God in the Druze faith, being among the seven prophets who appeared in different periods of history. Legacy in politics and law In a metaphorical sense in the Christian tradition, a "Moses" has been referred to as the leader who delivers the people from a terrible situation. Among the Presidents of the United States known to have used the symbolism of Moses were Harry S. Truman, Jimmy Carter, Ronald Reagan, Bill Clinton, George W. Bush and Barack Obama, who referred to his supporters as "the Moses generation." In subsequent years, theologians linked the Ten Commandments with the formation of early democracy. Scottish theologian William Barclay described them as "the universal foundation of all things… the law without which nationhood is impossible. …Our society is founded upon it. Pope Francis addressed the United States Congress in 2015 stating that all people need to "keep alive their sense of unity by means of just legislation... [and] the figure of Moses leads us directly to God and thus to the transcendent dignity of the human being. In US history Pilgrims References to Moses were used by the Puritans, who relied on the story of Moses to give meaning and hope to the lives of Pilgrims seeking religious and personal freedom in North America. John Carver was the first governor of Plymouth colony and first signer of the Mayflower Compact, which he wrote in 1620 during the ship Mayflowers three-month voyage. He inspired the Pilgrims with a "sense of earthly grandeur and divine purpose," notes historian Jon Meacham, and was called the "Moses of the Pilgrims." Early American writer James Russell Lowell noted the similarity of the founding of America by the Pilgrims to that of ancient Israel by Moses: Following Carver's death the following year, William Bradford was made governor. He feared that the remaining Pilgrims would not survive the hardships of the new land, with half their people having already died within months of arriving. Bradford evoked the symbol of Moses to the weakened and desperate Pilgrims to help calm them and give them hope: "Violence will break all. Where is the meek and humble spirit of Moses?" William G. Dever explains the attitude of the Pilgrims: "We considered ourselves the 'New Israel,' particularly we in America. And for that reason we knew who we were, what we believed in and valued, and what our 'manifest destiny' was." Founding Fathers of the United States On July 4, 1776, immediately after the Declaration of Independence was officially passed, the Continental Congress asked John Adams, Thomas Jefferson, and Benjamin Franklin to design a seal that would clearly represent a symbol for the new United States. They chose the symbol of Moses leading the Israelites to freedom. After the death of George Washington in 1799, two thirds of his eulogies referred to him as "America's Moses," with one orator saying that "Washington has been the same to us as Moses was to the Children of Israel." Benjamin Franklin, in 1788, saw the difficulties that some of the newly independent American states were having in forming a government, and proposed that until a new code of laws could be agreed to, they should be governed by "the laws of Moses," as contained in the Old Testament. He justified his proposal by explaining that the laws had worked in biblical times: "The Supreme Being… having rescued them from bondage by many miracles, performed by his servant Moses, he personally delivered to that chosen servant, in the presence of the whole nation, a constitution and code of laws for their observance. John Adams, 2nd President of the United States, stated why he relied on the laws of Moses over Greek philosophy for establishing the United States Constitution: "As much as I love, esteem, and admire the Greeks, I believe the Hebrews have done more to enlighten and civilize the world. Moses did more than all their legislators and philosophers." Swedish historian Hugo Valentin credited Moses as the "first to proclaim the rights of man." Slavery and civil rights Underground Railroad conductor and American Civil War veteran Harriet Tubman was nicknamed "Moses" due to her various missions in freeing and ferrying escaped enslaved persons to freedom in the free states of the United States. Historian Gladys L. Knight describes how leaders who emerged during and after the period in which slavery in the United States was legal often personified the Moses symbol. "The symbol of Moses was empowering in that it served to amplify a need for freedom." Therefore, when Abraham Lincoln was assassinated in 1865 after the passage of the amendment to the Constitution outlawing slavery, Black Americans said they had lost "their Moses". Lincoln biographer Charles Carleton Coffin writes, "The millions whom Abraham Lincoln delivered from slavery will ever liken him to Moses, the deliverer of Israel." Similarly, Harriet Tubman, who rescued approximately seventy enslaved family and friends, was also described as the "Moses" of her people. In the 1960s, a leading figure in the civil rights movement was Martin Luther King Jr., who was called "a modern Moses," and often referred to Moses in his speeches: "The struggle of Moses, the struggle of his devoted followers as they sought to get out of Egypt. This is something of the story of every people struggling for freedom." Cultural portrayals and references Art Moses often appears in Christian art, and the Pope's private chapel, the Sistine Chapel, has a large sequence of six frescos of the life of Moses on the southern wall, opposite a set with the life of Christ. They were painted in 1481-82 by a group of mostly Florentine artists including Sandro Botticelli and Pietro Perugino. Because of an ambiguity in Jerome's Latin Vulgate translation of the Bible, where Moses's face is described as cornutam (meaning either "shining" or "horned") when descending from Mount Sinai with the tablets, Moses is usually shown in Western art until the Renaissance with small horns, which at least served as a convenient identifying attribute. With the prophet Elijah, he is a necessary figure in the Transfiguration of Jesus in Christian art, a subject with a long history in Eastern Orthodox art, and popular in Western art between about 1475 and 1535.Michelangelo's statueMichelangelo's statue of Moses (1513–15), in the Church of San Pietro in Vincoli, Rome, is one of the most familiar statues in the world. The horns the sculptor included on Moses's head are the result of a mistranslation of the Hebrew Bible into the Latin Vulgate Bible with which Michelangelo was familiar. The Hebrew word taken from Exodus means either a "horn" or an "irradiation." Experts at the Archaeological Institute of America show that the term was used when Moses "returned to his people after seeing as much of the Glory of the Lord as human eye could stand," and his face "reflected radiance." In early Jewish art, moreover, Moses is often "shown with rays coming out of his head."Depiction on U.S. government buildings''' Moses is depicted in several U.S. government buildings because of his legacy as a lawgiver. In the Library of Congress stands a large statue of Moses alongside a statue of the Paul the Apostle. Moses is one of the 23 lawgivers depicted in marble bas-reliefs in the chamber of the U.S. House of Representatives in the United States Capitol. The plaque's overview states: "Moses (c. 1350–1250 B.C.) Hebrew prophet and lawgiver; transformed a wandering people into a nation; received the Ten Commandments." The other twenty-two figures have their profiles turned to Moses, which is the only forward-facing bas-relief.. Moses appears eight times in carvings that ring the Supreme Court Great Hall ceiling. His face is presented along with other ancient figures such as Solomon, the Greek god Zeus and the Roman goddess of wisdom, Minerva. The Supreme Court Building's east pediment depicts Moses holding two tablets. Tablets representing the Ten Commandments can be found carved in the oak courtroom doors, on the support frame of the courtroom's bronze gates and in the library woodwork. A controversial image is one that sits directly above the Chief Justice of the United States' head. In the center of the 40-foot-long Spanish marble carving is a tablet displaying Roman numerals I through X, with some numbers partially hidden. Literature Sigmund Freud, in his last book, Moses and Monotheism in 1939, postulated that Moses was an Egyptian nobleman who adhered to the monotheism of Akhenaten. Following a theory proposed by a contemporary biblical critic, Freud believed that Moses was murdered in the wilderness, producing a collective sense of patricidal guilt that has been at the heart of Judaism ever since. "Judaism had been a religion of the father, Christianity became a religion of the son", he wrote. The possible Egyptian origin of Moses and of his message has received significant scholarly attention. Opponents of this view observe that the religion of the Torah seems different from Atenism in everything except the central feature of devotion to a single god, although this has been countered by a variety of arguments, e.g. pointing out the similarities between the Hymn to Aten and Psalm 104. Freud's interpretation of the historical Moses is not well accepted among historians, and is considered pseudohistory by many. Thomas Mann's novella The Tables of the Law (1944) is a retelling of the story of the Exodus from Egypt, with Moses as its main character. W. G. Hardy's novel All the Trumpets Sounded (1942), told a fictionalized life of Moses. Orson Scott Card's novel Stone Tables (1997) is a novelization of the life of Moses. Film and television Moses was portrayed by Theodore Roberts in Cecil B. DeMille's 1923 silent film The Ten Commandments. Moses also appeared as the central character in the 1956 remake, also directed by DeMille and called The Ten Commandments, in which he was portrayed by Charlton Heston. A television remake was produced in 2006. Burt Lancaster played Moses in the 1975 television miniseries Moses the Lawgiver. In the 1981 comedy film History of the World, Part I, Moses was portrayed by Mel Brooks. In 1995, Sir Ben Kingsley portrayed Moses in the 1995 TV Film Moses, produced by British and Italian Production Companies Sir Ben Kingsley was the narrator of the 2007 animated film, The Ten Commandments. Moses appeared as the central character in the 1998 DreamWorks Pictures' animated movie, The Prince of Egypt. His speaking voice was provided by Actor Val Kilmer, with American gospel singer and tenor Amick Byram providing the singing voice of Moses. In the 2009 miniseries Battles BC, Moses was portrayed by Cazzey Louis Cereghino. In the 2013 television miniseries The Bible, Moses was portrayed by actor William Houston. Christian Bale portrayed Moses in Ridley Scott's 2014 film Exodus: Gods and Kings which portrayed Moses and Rameses II as being raised by Seti I as cousins. The 2016 Brazilian Biblical Telenovela Os Dez Mandamentos features Brazilian Actor Guilherme Winter portraying Moses Criticism of Moses In the late eighteenth century, the deist Thomas Paine commented at length on Moses's Laws in The Age of Reason (1794, 1795, and 1807). Paine considered Moses to be a "detestable villain", and cited Numbers 31 as an example of his "unexampled atrocities". In the passage, after the Israelite army returned from conquering Midian, Moses orders the killing of the Midianites with the exception of the virgin girls who were to be kept for the Israelites. Rabbi Joel Grossman argued that the story is a "powerful fable of lust and betrayal", and that Moses's execution of the women was a symbolic condemnation of those who seek to turn sex and desire to evil purposes. He says that the Middianite women "used their sexual attractiveness to turn the Israelite men away from [Yahweh] God and toward the worship of Baal Peor [another Canaanite God]". Rabbi Grossman argues that the genocide of all the Middianite non-virgin women, including those that did not seduce Jewish men, was fair because some of them had sex for "improper reasons". Alan Levin, an educational specialist with the Reform movement, has similarly suggested that the story should be taken as a cautionary tale, to "warn successive generations of Jews to watch their own idolatrous behavior". Chasam Sofer emphasizes that this war was not fought at Moses's behest, but was commanded by God as an act of revenge against the Midianite women, who, according to the Biblical account, had seduced the Israelites and led them to sin. Moses has also been the subject of much feminist criticism. Womanist Biblical scholar Nyasha Junior has argued that Moses can be the object of feminist inquiry. See also Sixth and Seventh Books of Moses Table of prophets of Abrahamic religions Tharbis, according to Josephus a wife of Moses Jewish mythology Notes References Sources Further reading . . Peter Barenboim, "Biblical Roots of Separation of Powers", Moscow, 2005, , . . . . . . . . . . . . . . . . . . 208 pp. . . . . . Kirsch, Jonathan. Moses: A Life. New York: Ballantine, 1998. . Kohn, Rebecca. Seven Days to the Sea: An Epic Novel of the Exodus. New York: Rugged Land, 2006. . . . . . . . . . . . . External links Book XVI, Chapter II in Geographica'' by Strabo, 1st century, 1932 translation. Moses is mentioned 15th-century BC biblical rulers 15th-century BC religious leaders Adoptees Ancient Egyptian Jews Angelic visionaries Biblical murderers Book of Deuteronomy Book of Exodus people Book of Numbers people Christian saints from the Old Testament Founders of religions People in the canonical gospels People in the catholic epistles People whose existence is disputed Prophets in the Druze faith Tribe of Levi Wonderworkers

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https://en.wikipedia.org/wiki/Mississippi%20River

Mississippi River

The Mississippi River is the second-longest river and chief river of the second-largest drainage system on the North American continent, second only to the Hudson Bay drainage system. From its traditional source of Lake Itasca in northern Minnesota, it flows generally south for to the Mississippi River Delta in the Gulf of Mexico. With its many tributaries, the Mississippi's watershed drains all or parts of 32 U.S. states and two Canadian provinces between the Rocky and Appalachian mountains. The main stem is entirely within the United States; the total drainage basin is , of which only about one percent is in Canada. The Mississippi ranks as the thirteenth-largest river by discharge in the world. The river either borders or passes through the states of Minnesota, Wisconsin, Iowa, Illinois, Missouri, Kentucky, Tennessee, Arkansas, Mississippi, and Louisiana. Native Americans have lived along the Mississippi River and its tributaries for thousands of years. Most were hunter-gatherers, but some, such as the Mound Builders, formed prolific agricultural and urban civilizations. The arrival of Europeans in the 16th century changed the native way of life as first explorers, then settlers, ventured into the basin in increasing numbers. The river served first as a barrier, forming borders for New Spain, New France, and the early United States, and then as a vital transportation artery and communications link. In the 19th century, during the height of the ideology of manifest destiny, the Mississippi and several western tributaries, most notably the Missouri, formed pathways for the western expansion of the United States. Formed from thick layers of the river's silt deposits, the Mississippi embayment is one of the most fertile regions of the United States; steamboats were widely used in the 19th and early 20th centuries to ship agricultural and industrial goods. During the American Civil War, the Mississippi's capture by Union forces marked a turning point towards victory, due to the river's strategic importance to the Confederate war effort. Because of the substantial growth of cities and the larger ships and barges that replaced steamboats, the first decades of the 20th century saw the construction of massive engineering works such as levees, locks and dams, often built in combination. A major focus of this work has been to prevent the lower Mississippi from shifting into the channel of the Atchafalaya River and bypassing New Orleans. Since the 20th century, the Mississippi River has also experienced major pollution and environmental problems – most notably elevated nutrient and chemical levels from agricultural runoff, the primary contributor to the Gulf of Mexico dead zone. Name and significance The word Mississippi itself comes from , the French rendering of the Anishinaabe (Ojibwe or Algonquin) name for the river, (Great River). In the 18th century, the river was the primary western boundary of the young United States, and since the country's expansion westward, the Mississippi River has been widely considered a convenient, if approximate, dividing line between the Eastern, Southern, and Midwestern United States, and the Western United States. This is exemplified by the Gateway Arch in St. Louis and the phrase "Trans-Mississippi" as used in the name of the Trans-Mississippi Exposition. It is common to qualify a regionally superlative landmark in relation to it, such as "the highest peak east of the Mississippi" or "the oldest city west of the Mississippi". The FCC also uses it as the dividing line for broadcast call-signs, which begin with W to the east and K to the west, mixing together in media markets along the river. Divisions The Mississippi River can be divided into three sections: the Upper Mississippi, the river from its headwaters to the confluence with the Missouri River; the Middle Mississippi, which is downriver from the Missouri to the Ohio River; and the Lower Mississippi, which flows from the Ohio to the Gulf of Mexico. Upper Mississippi The Upper Mississippi runs from its headwaters to its confluence with the Missouri River at St. Louis, Missouri. It is divided into two sections: The headwaters, from the source to Saint Anthony Falls in Minneapolis, Minnesota; and A navigable channel, formed by a series of man-made lakes between Minneapolis and St. Louis, Missouri, some . The source of the Upper Mississippi branch is traditionally accepted as Lake Itasca, above sea level in Itasca State Park in Clearwater County, Minnesota. The name Itasca was chosen to designate the "true head" of the Mississippi River as a combination of the last four letters of the Latin word for truth () and the first two letters of the Latin word for head (). However, the lake is in turn fed by a number of smaller streams. From its origin at Lake Itasca to St. Louis, Missouri, the waterway's flow is moderated by 43 dams. Fourteen of these dams are located above Minneapolis in the headwaters region and serve multiple purposes, including power generation and recreation. The remaining 29 dams, beginning in downtown Minneapolis, all contain locks and were constructed to improve commercial navigation of the upper river. Taken as a whole, these 43 dams significantly shape the geography and influence the ecology of the upper river. Beginning just below Saint Paul, Minnesota, and continuing throughout the upper and lower river, the Mississippi is further controlled by thousands of Wing Dikes that moderate the river's flow in order to maintain an open navigation channel and prevent the river from eroding its banks. The head of navigation on the Mississippi is the Coon Rapids Dam in Coon Rapids, Minnesota. Before it was built in 1913, steamboats could occasionally go upstream as far as Saint Cloud, Minnesota, depending on river conditions. The uppermost lock and dam on the Upper Mississippi River is the Upper St. Anthony Falls Lock and Dam in Minneapolis. Above the dam, the river's elevation is . Below the dam, the river's elevation is . This drop is the largest of all the Mississippi River locks and dams. The origin of the dramatic drop is a waterfall preserved adjacent to the lock under an apron of concrete. Saint Anthony Falls is the only true waterfall on the entire Mississippi River. The water elevation continues to drop steeply as it passes through the gorge carved by the waterfall. After the completion of the St. Anthony Falls Lock and Dam in 1963, the river's head of navigation moved upstream, to the Coon Rapids Dam. However, the Locks were closed in 2015 to control the spread of invasive Asian carp, making Minneapolis once again the site of the head of navigation of the river. The Upper Mississippi has a number of natural and artificial lakes, with its widest point being Lake Winnibigoshish, near Grand Rapids, Minnesota, over across. Lake Onalaska, created by Lock and Dam No. 7, near La Crosse, Wisconsin, is more than wide. Lake Pepin, a natural lake formed behind the delta of the Chippewa River of Wisconsin as it enters the Upper Mississippi, is more than wide. By the time the Upper Mississippi reaches Saint Paul, Minnesota, below Lock and Dam No. 1, it has dropped more than half its original elevation and is above sea level. From St. Paul to St. Louis, Missouri, the river elevation falls much more slowly and is controlled and managed as a series of pools created by 26 locks and dams. The Upper Mississippi River is joined by the Minnesota River at Fort Snelling in the Twin Cities; the St. Croix River near Prescott, Wisconsin; the Cannon River near Red Wing, Minnesota; the Zumbro River at Wabasha, Minnesota; the Black, La Crosse, and Root rivers in La Crosse, Wisconsin; the Wisconsin River at Prairie du Chien, Wisconsin; the Rock River at the Quad Cities; the Iowa River near Wapello, Iowa; the Skunk River south of Burlington, Iowa; and the Des Moines River at Keokuk, Iowa. Other major tributaries of the Upper Mississippi include the Crow River in Minnesota, the Chippewa River in Wisconsin, the Maquoketa River and the Wapsipinicon River in Iowa, and the Illinois River in Illinois. The Upper Mississippi is largely a multi-thread stream with many bars and islands. From its confluence with the St. Croix River downstream to Dubuque, Iowa, the river is entrenched, with high bedrock bluffs lying on either side. The height of these bluffs decreases to the south of Dubuque, though they are still significant through Savanna, Illinois. This topography contrasts strongly with the Lower Mississippi, which is a meandering river in a broad, flat area, only rarely flowing alongside a bluff (as at Vicksburg, Mississippi). Middle Mississippi The Mississippi River is known as the Middle Mississippi from the Upper Mississippi River's confluence with the Missouri River at St. Louis, Missouri, for to its confluence with the Ohio River at Cairo, Illinois. The Middle Mississippi is relatively free-flowing. From St. Louis to the Ohio River confluence, the Middle Mississippi falls over for an average rate of . At its confluence with the Ohio River, the Middle Mississippi is above sea level. Apart from the Missouri and Meramec rivers of Missouri and the Kaskaskia River of Illinois, no major tributaries enter the Middle Mississippi River. Lower Mississippi The Mississippi River is called the Lower Mississippi River from its confluence with the Ohio River to its mouth at the Gulf of Mexico, a distance of about . At the confluence of the Ohio and the Middle Mississippi, the long-term mean discharge of the Ohio at Cairo, Illinois is , while the long-term mean discharge of the Mississippi at Thebes, Illinois (just upriver from Cairo) is . Thus, by volume, the main branch of the Mississippi River system at Cairo can be considered to be the Ohio River (and the Allegheny River further upstream), rather than the Middle Mississippi. In addition to the Ohio River, the major tributaries of the Lower Mississippi River are the White River, flowing in at the White River National Wildlife Refuge in east-central Arkansas; the Arkansas River, joining the Mississippi at Arkansas Post; the Big Black River in Mississippi; and the Yazoo River, meeting the Mississippi at Vicksburg, Mississippi. Deliberate water diversion at the Old River Control Structure in Louisiana allows the Atchafalaya River in Louisiana to be a major distributary of the Mississippi River, with 30% of the combined flow of the Mississippi and Red Rivers flowing to the Gulf of Mexico by this route, rather than continuing down the Mississippi's current channel past Baton Rouge and New Orleans on a longer route to the Gulf. Although the Red River is commonly mistaken for an additional tributary, its water flows separately into the Gulf of Mexico through the Atchafalaya River. Watershed The Mississippi River has the world's fourth-largest drainage basin ("watershed" or "catchment"). The basin covers more than , including all or parts of 32 U.S. states and two Canadian provinces. The drainage basin empties into the Gulf of Mexico, part of the Atlantic Ocean. The total catchment of the Mississippi River covers nearly 40% of the landmass of the continental United States. The highest point within the watershed is also the highest point of the Rocky Mountains, Mount Elbert at . In the United States, the Mississippi River drains the majority of the area between the crest of the Rocky Mountains and the crest of the Appalachian Mountains, except for various regions drained to Hudson Bay by the Red River of the North; to the Atlantic Ocean by the Great Lakes and the Saint Lawrence River; and to the Gulf of Mexico by the Rio Grande, the Alabama and Tombigbee rivers, the Chattahoochee and Appalachicola rivers, and various smaller coastal waterways along the Gulf. The Mississippi River empties into the Gulf of Mexico about downstream from New Orleans. Measurements of the length of the Mississippi from Lake Itasca to the Gulf of Mexico vary somewhat, but the United States Geological Survey's number is . The retention time from Lake Itasca to the Gulf is typically about 90 days. The stream gradient of the entire river is 0.01%, a drop of 450 m over 3,766 km. Outflow The Mississippi River discharges at an annual average rate of between . Although it is the fourteenth-largest river in the world by volume, this flow is a small fraction of the output of the Amazon, which moves nearly during wet seasons. On average, the Mississippi has only 8% the flow of the Amazon River. Fresh river water flowing from the Mississippi into the Gulf of Mexico does not mix into the salt water immediately. The images from NASA's MODIS (to the right) show a large plume of fresh water, which appears as a dark ribbon against the lighter-blue surrounding waters. These images demonstrate that the plume did not mix with the surrounding sea water immediately. Instead, it stayed intact as it flowed through the Gulf of Mexico, into the Straits of Florida, and entered the Gulf Stream. The Mississippi River water rounded the tip of Florida and traveled up the southeast coast to the latitude of Georgia before finally mixing in so thoroughly with the ocean that it could no longer be detected by MODIS. Before 1900, the Mississippi River transported an estimated of sediment per year from the interior of the United States to coastal Louisiana and the Gulf of Mexico. During the last two decades, this number was only per year. The reduction in sediment transported down the Mississippi River is the result of engineering modification of the Mississippi, Missouri, and Ohio rivers and their tributaries by dams, meander cutoffs, river-training structures, and bank revetments and soil erosion control programs in the areas drained by them. Course changes Over geologic time, the Mississippi River has experienced numerous large and small changes to its main course, as well as additions, deletions, and other changes among its numerous tributaries, and the lower Mississippi River has used different pathways as its main channel to the Gulf of Mexico across the delta region. Through a natural process known as avulsion or delta switching, the lower Mississippi River has shifted its final course to the mouth of the Gulf of Mexico every thousand years or so. This occurs because the deposits of silt and sediment begin to clog its channel, raising the river's level and causing it to eventually find a steeper, more direct route to the Gulf of Mexico. The abandoned distributaries diminish in volume and form what are known as bayous. This process has, over the past 5,000 years, caused the coastline of south Louisiana to advance toward the Gulf from . The currently active delta lobe is called the Birdfoot Delta, after its shape, or the Balize Delta, after La Balize, Louisiana, the first French settlement at the mouth of the Mississippi. Prehistoric courses The current form of the Mississippi River basin was largely shaped by the Laurentide Ice Sheet of the most recent Ice Age. The southernmost extent of this enormous glaciation extended well into the present-day United States and Mississippi basin. When the ice sheet began to recede, hundreds of feet of rich sediment were deposited, creating the flat and fertile landscape of the Mississippi Valley. During the melt, giant glacial rivers found drainage paths into the Mississippi watershed, creating such features as the Minnesota River, James River, and Milk River valleys. When the ice sheet completely retreated, many of these "temporary" rivers found paths to Hudson Bay or the Arctic Ocean, leaving the Mississippi Basin with many features "over-sized" for the existing rivers to have carved in the same time period. Ice sheets during the Illinoian Stage, about 300,000 to 132,000 years before present, blocked the Mississippi near Rock Island, Illinois, diverting it to its present channel farther to the west, the current western border of Illinois. The Hennepin Canal roughly follows the ancient channel of the Mississippi downstream from Rock Island to Hennepin, Illinois. South of Hennepin, to Alton, Illinois, the current Illinois River follows the ancient channel used by the Mississippi River before the Illinoian Stage. Timeline of outflow course changes c. 5000 BC: The last Ice Age ended; world sea level became what it is now. c. 2500 BC: Bayou Teche became the main course of the Mississippi. c. 800 BC: The Mississippi diverted further east. c. 200 AD: Bayou Lafourche became the main course of the Mississippi. c. 1000 AD: The Mississippi's present course took over. Before c. 1400 AD: The Red River of the South flowed parallel to the lower Mississippi to the sea 15th century: Turnbull's Bend in the lower Mississippi extended so far west that it captured the Red River of the South. The Red River below the captured section became the Atchafalaya River. 1831: Captain Henry M. Shreve dug a new short course for the Mississippi through the neck of Turnbull's Bend. 1833 to November 1873: The Great Raft (a huge logjam in the Atchafalaya River) was cleared. The Atchafalaya started to capture the Mississippi and to become its new main lower course. 1963: The Old River Control Structure was completed, controlling how much Mississippi water entered the Atchafalaya. Historic course changes In March 1876, the Mississippi suddenly changed course near the settlement of Reverie, Tennessee, leaving a small part of Tipton County, Tennessee, attached to Arkansas and separated from the rest of Tennessee by the new river channel. Since this event was an avulsion, rather than the effect of incremental erosion and deposition, the state line still follows the old channel. The town of Kaskaskia, Illinois once stood on a peninsula at the confluence of the Mississippi and Kaskaskia (Okaw) Rivers. Founded as a French colonial community, it later became the capital of the Illinois Territory and was the first state capital of Illinois until 1819. Beginning in 1844, successive flooding caused the Mississippi River to slowly encroach east. A major flood in 1881 caused it to overtake the lower of the Kaskaskia River, forming a new Mississippi channel and cutting off the town from the rest of the state. Later flooding destroyed most of the remaining town, including the original State House. Today, the remaining island and community of 14 residents is known as an enclave of Illinois and is accessible only from the Missouri side. New Madrid Seismic Zone The New Madrid Seismic Zone, along the Mississippi River near New Madrid, Missouri, between Memphis and St. Louis, is related to an aulacogen (failed rift) that formed at the same time as the Gulf of Mexico. This area is still quite active seismically. Four great earthquakes in 1811 and 1812, estimated at approximately 8 on the Richter magnitude scale, had tremendous local effects in the then sparsely settled area, and were felt in many other places in the Midwestern and eastern U.S. These earthquakes created Reelfoot Lake in Tennessee from the altered landscape near the river. Length When measured from its traditional source at Lake Itasca, the Mississippi has a length of . When measured from its longest stream source (most distant source from the sea), Brower's Spring in Montana, the source of the Missouri River, it has a length of , making it the fourth longest river in the world after the Nile, Amazon, and Yangtze. When measured by the largest stream source (by water volume), the Ohio River, by extension the Allegheny River, would be the source, and the Mississippi would begin in Pennsylvania. Depth At its source at Lake Itasca, the Mississippi River is about deep. The average depth of the Mississippi River between Saint Paul and Saint Louis is between deep, the deepest part being Lake Pepin, which averages deep and has a maximum depth of . Between where the Missouri River joins the Mississippi at Saint Louis, Missouri, and Cairo, Illinois, the depth averages . Below Cairo, where the Ohio River joins, the depth averages deep. The deepest part of the river is in New Orleans, where it reaches deep. Cultural geography State boundaries The Mississippi River runs through or along 10 states, from Minnesota to Louisiana, and is used to define portions of these states borders, with Wisconsin, Illinois, Kentucky, Tennessee, and Mississippi along the east side of the river, and Iowa, Missouri, and Arkansas along its west side. Substantial parts of both Minnesota and Louisiana are on either side of the river, although the Mississippi defines part of the boundary of each of these states. In all of these cases, the middle of the riverbed at the time the borders were established was used as the line to define the borders between adjacent states. In various areas, the river has since shifted, but the state borders have not changed, still following the former bed of the Mississippi River as of their establishment, leaving several small isolated areas of one state across the new river channel, contiguous with the adjacent state. Also, due to a meander in the river, a small part of western Kentucky is contiguous with Tennessee but isolated from the rest of its state. Communities along the river Many of the communities along the Mississippi River are listed below; most have either historic significance or cultural lore connecting them to the river. They are sequenced from the source of the river to its end. Bemidji, Minnesota Grand Rapids, Minnesota Jacobson, Minnesota Palisade, Minnesota Aitkin, Minnesota Riverton, Minnesota Brainerd, Minnesota Fort Ripley, Minnesota Little Falls, Minnesota Sartell, Minnesota St. Cloud, Minnesota Monticello, Minnesota Anoka, Minnesota Coon Rapids, Minnesota Brooklyn Park, Minnesota Brooklyn Center, Minnesota Minneapolis, Minnesota Saint Paul, Minnesota Nininger, Minnesota Hastings, Minnesota Prescott, Wisconsin Prairie Island, Minnesota Diamond Bluff, Wisconsin Red Wing, Minnesota Hager City, Wisconsin Maiden Rock, Wisconsin Stockholm, Wisconsin Lake City, Minnesota Maple Springs, Minnesota Camp Lacupolis, Minnesota Pepin, Wisconsin Reads Landing, Minnesota Wabasha, Minnesota Nelson, Wisconsin Alma, Wisconsin Buffalo City, Wisconsin Weaver, Minnesota Minneiska, Minnesota Fountain City, Wisconsin Winona, Minnesota Homer, Minnesota Trempealeau, Wisconsin Dakota, Minnesota Dresbach, Minnesota La Crescent, Minnesota La Crosse, Wisconsin Brownsville, Minnesota Stoddard, Wisconsin Genoa, Wisconsin Victory, Wisconsin Potosi, Wisconsin De Soto, Wisconsin Lansing, Iowa Ferryville, Wisconsin Lynxville, Wisconsin Prairie du Chien, Wisconsin Marquette, Iowa McGregor, Iowa Wyalusing, Wisconsin Guttenberg, Iowa Cassville, Wisconsin Dubuque, Iowa Galena, Illinois Bellevue, Iowa Savanna, Illinois Sabula, Iowa Fulton, Illinois Clinton, Iowa Cordova, Illinois Port Byron, Illinois LeClaire, Iowa Rapids City, Illinois Hampton, Illinois Bettendorf, Iowa East Moline, Illinois Moline, Illinois Davenport, Iowa Rock Island, Illinois Buffalo, Iowa Muscatine, Iowa New Boston, Illinois Keithsburg, Illinois Oquawka, Illinois Burlington, Iowa Dallas City, Illinois Fort Madison, Iowa Nauvoo, Illinois Keokuk, Iowa Warsaw, Illinois Quincy, Illinois Hannibal, Missouri Louisiana, Missouri Clarksville, Missouri Grafton, Illinois Portage Des Sioux, Missouri Alton, Illinois St. Louis, Missouri Ste. Genevieve, Missouri Kaskaskia, Illinois Chester, Illinois Grand Tower, Illinois Cape Girardeau, Missouri Thebes, Illinois Commerce, Missouri Cairo, Illinois Wickliffe, Kentucky Columbus, Kentucky Hickman, Kentucky New Madrid, Missouri Tiptonville, Tennessee Caruthersville, Missouri Osceola, Arkansas Reverie, Tennessee Memphis, Tennessee West Memphis, Arkansas Tunica, Mississippi Helena-West Helena, Arkansas Napoleon, Arkansas (historical) Arkansas City, Arkansas Greenville, Mississippi Mayersville, Mississippi Vicksburg, Mississippi Waterproof, Louisiana Natchez, Mississippi Morganza, Louisiana St. Francisville, Louisiana New Roads, Louisiana Baton Rouge, Louisiana Donaldsonville, Louisiana Lutcher, Louisiana Destrehan, Louisiana New Orleans, Louisiana Pilottown, Louisiana La Balize, Louisiana (historical) Bridge crossings The road crossing highest on the Upper Mississippi is a simple steel culvert, through which the river (locally named "Nicolet Creek") flows north from Lake Nicolet under "Wilderness Road" to the West Arm of Lake Itasca, within Itasca State Park. The earliest bridge across the Mississippi River was built in 1855. It spanned the river in Minneapolis where the current Hennepin Avenue Bridge is located. No highway or railroad tunnels cross under the Mississippi River. The first railroad bridge across the Mississippi was built in 1856. It spanned the river between the Rock Island Arsenal in Illinois and Davenport, Iowa. Steamboat captains of the day, fearful of competition from the railroads, considered the new bridge a hazard to navigation. Two weeks after the bridge opened, the steamboat Effie Afton rammed part of the bridge, setting it on fire. Legal proceedings ensued, with Abraham Lincoln defending the railroad. The lawsuit went to the Supreme Court of the United States, which ruled in favor of the railroad. Below is a general overview of selected Mississippi bridges that have notable engineering or landmark significance, with their cities or locations. They are sequenced from the Upper Mississippi's source to the Lower Mississippi's mouth. Stone Arch BridgeFormer Great Northern Railway (now pedestrian) bridge at Saint Anthony Falls connecting downtown Minneapolis with the historic Marcy-Holmes neighborhood. I-35W Saint Anthony Falls BridgeIn Minneapolis, opened in September 2008, replacing the I-35W Mississippi River bridge which had collapsed catastrophically on August 1, 2007, killing 13 and injuring over 100. Eisenhower Bridge (Mississippi River)In Red Wing, Minnesota, opened by Dwight D. Eisenhower in November 1960. I-90 Mississippi River BridgeConnects La Crosse, Wisconsin, and Winona County, Minnesota, located just south of Lock and Dam No. 7. Black Hawk BridgeConnects Lansing in Allamakee County, Iowa and rural Crawford County, Wisconsin; locally referred to as the Lansing Bridge and documented in the Historic American Engineering Record. Dubuque-Wisconsin BridgeConnects Dubuque, Iowa, and Grant County, Wisconsin. Julien Dubuque BridgeJoins the cities of Dubuque, Iowa, and East Dubuque, Illinois; listed in the National Register of Historic Places. Savanna-Sabula BridgeA truss bridge and causeway connecting the city of Savanna, Illinois, and the island city of Sabula, Iowa. The bridge carries U.S. Highway 52 over the river, and is the terminus of both Iowa Highway 64 and Illinois Route 64. Added to the National Register of Historic Places in 1999. Fred Schwengel Memorial BridgeA 4-lane steel girder bridge that carries Interstate 80 and connects LeClaire, Iowa, and Rapids City, Illinois. Completed in 1966. Clinton Railroad BridgeA swing bridge that connects Clinton, Iowa and Fulton (Albany), Illinois. Known as the Chicago and Northwestern Railroad Bridge. I-74 BridgeConnects Bettendorf, Iowa, and Moline, Illinois; originally known as the Iowa-Illinois Memorial Bridge. Government BridgeConnects Rock Island, Illinois and Davenport, Iowa, adjacent to Lock and Dam No. 15; the fourth crossing in this vicinity, built in 1896. Rock Island Centennial BridgeConnects Rock Island, Illinois, and Davenport, Iowa; opened in 1940. Sergeant John F. Baker, Jr. BridgeConnects Rock Island, Illinois, and Davenport, Iowa; opened in 1973. Norbert F. Beckey BridgeConnects Muscatine, Iowa, and Rock Island County, Illinois; became first U.S. bridge to be illuminated with light-emitting diode (LED) lights decoratively illuminating the facade of the bridge. Great River BridgeA cable-stayed bridge connecting Burlington, Iowa, to Gulf Port, Illinois. Fort Madison Toll BridgeConnects Fort Madison, Iowa, and unincorporated Niota, Illinois; also known as the Santa Fe Swing Span Bridge; at the time of its construction the longest and heaviest electrified swing span on the Mississippi River. Listed in the National Register of Historic Places since 1999. Keokuk–Hamilton BridgeConnects Keokuk, Iowa and Hamilton, Illinois; opened in 1985 replacing an older bridge which is still in use as a railroad bridge. Bayview BridgeA cable-stayed bridge bringing westbound U.S. Highway 24 over the river, connecting the cities of West Quincy, Missouri, and Quincy, Illinois. Quincy Memorial BridgeConnects the cities of West Quincy, Missouri, and Quincy, Illinois, carrying eastbound U.S. 24, the older of these two U.S. 24 bridges. Clark BridgeA cable-stayed bridge connecting West Alton, Missouri, and Alton, Illinois, also known as the Super Bridge as the result of an appearance on the PBS program, Nova; built in 1994, carrying U.S. Route 67 across the river. This is the northernmost river crossing in the St. Louis metropolitan area, replacing the Old Clark Bridge, a truss bridge built in 1928, named after explorer William Clark. Chain of Rocks BridgeLocated on the northern edge of St. Louis, notable for a 22-degree bend occurring at the middle of the crossing, necessary for navigation on the river; formerly used by U.S. Route 66 to cross the Mississippi. Replaced for road traffic in 1966 by a nearby pair of new bridges; now a pedestrian bridge. Eads BridgeA combined road and railway bridge, connecting St. Louis and East St. Louis, Illinois. When completed in 1874, it was the longest arch bridge in the world, with an overall length of . The three ribbed steel arch spans were considered daring, as was the use of steel as a primary structural material; it was the first such use of true steel in a major bridge project. Chester BridgeA truss bridge connecting Route 51 in Missouri with Illinois Route 150, between Perryville, Missouri, and Chester, Illinois. The bridge can be seen at the beginning of the 1967 film In the Heat of the Night. In the 1940s, the main span was destroyed by a tornado. Bill Emerson Memorial Bridge—Connecting Cape Girardeau, Missouri and East Cape Girardeau, Illinois, completed in 2003 and illuminated by 140 lights. Caruthersville Bridge A single tower cantilever bridge carrying Interstate 155 and U.S. Route 412 across the Mississippi River between Caruthersville, Missouri and Dyersburg, Tennessee. Hernando de Soto BridgeA through arch bridge carrying Interstate 40 across the Mississippi between West Memphis, Arkansas, and Memphis, Tennessee. Harahan BridgeA cantilevered through truss bridge, carrying two rail lines of the Union Pacific Railroad across the river between West Memphis, Arkansas, and Memphis, Tennessee. Frisco BridgeA cantilevered through truss bridge, carrying a rail line across the river between West Memphis, Arkansas, and Memphis, Tennessee, previously known as the Memphis Bridge. When it opened on May 12, 1892, it was the first crossing of the Lower Mississippi and the longest span in the U.S. Listed as a Historic Civil Engineering Landmark. Memphis & Arkansas BridgeA cantilevered through truss bridge, carrying Interstate 55 between Memphis and West Memphis; listed on the National Register of Historic Places. Helena Bridge Greenville Bridge Old Vicksburg Bridge Vicksburg Bridge Natchez-Vidalia Bridge John James Audubon BridgeThe second-longest cable-stayed bridge in the Western Hemisphere; connects Pointe Coupee and West Feliciana Parishes in Louisiana. It is the only crossing between Baton Rouge and Natchez. This bridge was opened a month ahead of schedule in May 2011, due to the 2011 floods. Huey P. Long BridgeA truss cantilever bridge carrying US 190 (Airline Highway) and one rail line between East Baton Rouge and West Baton Rouge Parishes in Louisiana. Horace Wilkinson BridgeA cantilevered through truss bridge, carrying six lanes of Interstate 10 between Baton Rouge and Port Allen in Louisiana. It is the highest bridge over the Mississippi River. Sunshine Bridge Gramercy Bridge Hale Boggs Memorial Bridge Huey P. Long BridgeIn Jefferson Parish, Louisiana, the first Mississippi River span built in Louisiana. Crescent City ConnectionConnects the east and west banks of New Orleans, Louisiana; the fifth-longest cantilever bridge in the world. Navigation and flood control A clear channel is needed for the barges and other vessels that make the main stem Mississippi one of the great commercial waterways of the world. The task of maintaining a navigation channel is the responsibility of the United States Army Corps of Engineers, which was established in 1802. Earlier projects began as early as 1829 to remove snags, close off secondary channels and excavate rocks and sandbars. Steamboats entered trade in the 1820s, so the period 1830–1850 became the golden age of steamboats. As there were few roads or rails in the lands of the Louisiana Purchase, river traffic was an ideal solution. Cotton, timber and food came down the river, as did Appalachian coal. The port of New Orleans boomed as it was the trans-shipment point to deep sea ocean vessels. As a result, the image of the twin-stacked, wedding cake Mississippi steamer entered into American mythology. Steamers worked the entire route from the trickles of Montana to the Ohio River; down the Missouri and Tennessee, to the main channel of the Mississippi. Only with the arrival of the railroads in the 1880s did steamboat traffic diminish. Steamboats remained a feature until the 1920s. Most have been superseded by pusher tugs. A few survive as icons—the Delta Queen and the River Queen for instance. A series of 29 locks and dams on the upper Mississippi, most of which were built in the 1930s, is designed primarily to maintain a channel for commercial barge traffic. The lakes formed are also used for recreational boating and fishing. The dams make the river deeper and wider but do not stop it. No flood control is intended. During periods of high flow, the gates, some of which are submersible, are completely opened and the dams simply cease to function. Below St. Louis, the Mississippi is relatively free-flowing, although it is constrained by numerous levees and directed by numerous wing dams. On the lower Mississippi, from Baton Rouge to the mouth of the Mississippi, the navigation depth is , allowing container ships and cruise ships to dock at the Port of New Orleans and bulk cargo ships shorter than air draft that fit under the Huey P. Long Bridge to traverse the Mississippi to Baton Rouge. There is a feasibility study to dredge this portion of the river to to allow New Panamax ship depths. 19th century In 1829, there were surveys of the two major obstacles on the upper Mississippi, the Des Moines Rapids and the Rock Island Rapids, where the river was shallow and the riverbed was rock. The Des Moines Rapids were about long and just above the mouth of the Des Moines River at Keokuk, Iowa. The Rock Island Rapids were between Rock Island and Moline, Illinois. Both rapids were considered virtually impassable. In 1848, the Illinois and Michigan Canal was built to connect the Mississippi River to Lake Michigan via the Illinois River near Peru, Illinois. The canal allowed shipping between these important waterways. In 1900, the canal was replaced by the Chicago Sanitary and Ship Canal. The second canal, in addition to shipping, also allowed Chicago to address specific health issues (typhoid fever, cholera and other waterborne diseases) by sending its waste down the Illinois and Mississippi river systems rather than polluting its water source of Lake Michigan. The Corps of Engineers recommended the excavation of a channel at the Des Moines Rapids, but work did not begin until after Lieutenant Robert E. Lee endorsed the project in 1837. The Corps later also began excavating the Rock Island Rapids. By 1866, it had become evident that excavation was impractical, and it was decided to build a canal around the Des Moines Rapids. The canal opened in 1877, but the Rock Island Rapids remained an obstacle. In 1878, Congress authorized the Corps to establish a channel to be obtained by building wing dams that direct the river to a narrow channel causing it to cut a deeper channel, by closing secondary channels and by dredging. The channel project was complete when the Moline Lock, which bypassed the Rock Island Rapids, opened in 1907. To improve navigation between St. Paul, Minnesota, and Prairie du Chien, Wisconsin, the Corps constructed several dams on lakes in the headwaters area, including Lake Winnibigoshish and Lake Pokegama. The dams, which were built beginning in the 1880s, stored spring run-off which was released during low water to help maintain channel depth. 20th century In 1907, Congress authorized a channel project on the Mississippi River, which was not complete when it was abandoned in the late 1920s in favor of the channel project. In 1913, construction was complete on Lock and Dam No. 19 at Keokuk, Iowa, the first dam below St. Anthony Falls. Built by a private power company (Union Electric Company of St. Louis) to generate electricity (originally for streetcars in St. Louis), the Keokuk dam was one of the largest hydro-electric plants in the world at the time. The dam also eliminated the Des Moines Rapids. Lock and Dam No. 1 was completed in Minneapolis, Minnesota in 1917. Lock and Dam No. 2, near Hastings, Minnesota, was completed in 1930. Before the Great Mississippi Flood of 1927, the Corps's primary strategy was to close off as many side channels as possible to increase the flow in the main river. It was thought that the river's velocity would scour off bottom sediments, deepening the river and decreasing the possibility of flooding. The 1927 flood proved this to be so wrong that communities threatened by the flood began to create their own levee breaks to relieve the force of the rising river. The Rivers and Harbors Act of 1930 authorized the channel project, which called for a navigation channel feet deep and wide to accommodate multiple-barge tows. This was achieved by a series of locks and dams, and by dredging. Twenty-three new locks and dams were built on the upper Mississippi in the 1930s in addition to the three already in existence. Until the 1950s, there was no dam below Lock and Dam 26 at Alton, Illinois. Chain of Rocks Lock (Lock and Dam No. 27), which consists of a low-water dam and an canal, was added in 1953, just below the confluence with the Missouri River, primarily to bypass a series of rock ledges at St. Louis. It also serves to protect the St. Louis city water intakes during times of low water. U.S. government scientists determined in the 1950s that the Mississippi River was starting to switch to the Atchafalaya River channel because of its much steeper path to the Gulf of Mexico. Eventually, the Atchafalaya River would capture the Mississippi River and become its main channel to the Gulf of Mexico, leaving New Orleans on a side channel. As a result, the U.S. Congress authorized a project called the Old River Control Structure, which has prevented the Mississippi River from leaving its current channel that drains into the Gulf via New Orleans. Because the large scale of high-energy water flow threatened to damage the structure, an auxiliary flow control station was built adjacent to the standing control station. This $300 million project was completed in 1986 by the Corps of Engineers. Beginning in the 1970s, the Corps applied hydrological transport models to analyze flood flow and water quality of the Mississippi. Dam 26 at Alton, Illinois, which had structural problems, was replaced by the Mel Price Lock and Dam in 1990. The original Lock and Dam 26 was demolished. 21st century The Corps now actively creates and maintains spillways and floodways to divert periodic water surges into backwater channels and lakes, as well as route part of the Mississippi's flow into the Atchafalaya Basin and from there to the Gulf of Mexico, bypassing Baton Rouge and New Orleans. The main structures are the Birds Point-New Madrid Floodway in Missouri; the Old River Control Structure and the Morganza Spillway in Louisiana, which direct excess water down the west and east sides (respectively) of the Atchafalaya River; and the Bonnet Carré Spillway, also in Louisiana, which directs floodwaters to Lake Pontchartrain (see diagram). Some experts blame urban sprawl for increases in both the risk and frequency of flooding on the Mississippi River. Some of the pre-1927 strategy remains in use today, with the Corps actively cutting the necks of horseshoe bends, allowing the water to move faster and reducing flood heights. History Approximately 50,000 years ago, the Central United States was covered by an inland sea, which was drained by the Mississippi and its tributaries into the Gulf of Mexico—creating large floodplains and extending the continent further to the south in the process. The soil in areas such as Louisiana was thereafter found to be very rich. Native Americans The area of the Mississippi River basin was first settled by hunting and gathering Native American peoples and is considered one of the few independent centers of plant domestication in human history. Evidence of early cultivation of sunflower, a goosefoot, a marsh elder and an indigenous squash dates to the 4th millennium BC. The lifestyle gradually became more settled after around 1000 BC during what is now called the Woodland period, with increasing evidence of shelter construction, pottery, weaving and other practices. A network of trade routes referred to as the Hopewell interaction sphere was active along the waterways between about 200 and 500 AD, spreading common cultural practices over the entire area between the Gulf of Mexico and the Great Lakes. A period of more isolated communities followed, and agriculture introduced from Mesoamerica based on the Three Sisters (maize, beans and squash) gradually came to dominate. After around 800 AD there arose an advanced agricultural society today referred to as the Mississippian culture, with evidence of highly stratified complex chiefdoms and large population centers. The most prominent of these, now called Cahokia, was occupied between about 600 and 1400 AD and at its peak numbered between 8,000 and 40,000 inhabitants, larger than London, England of that time. At the time of first contact with Europeans, Cahokia and many other Mississippian cities had dispersed, and archaeological finds attest to increased social stress. Modern American Indian nations inhabiting the Mississippi basin include Cheyenne, Sioux, Ojibwe, Potawatomi, Ho-Chunk, Fox, Kickapoo, Tamaroa, Moingwena, Quapaw and Chickasaw. The word Mississippi itself comes from Messipi, the French rendering of the Anishinaabe (Ojibwe or Algonquin) name for the river, Misi-ziibi (Great River). The Ojibwe called Lake Itasca Omashkoozo-zaaga'igan (Elk Lake) and the river flowing out of it Omashkoozo-ziibi (Elk River). After flowing into Lake Bemidji, the Ojibwe called the river Bemijigamaag-ziibi (River from the Traversing Lake). After flowing into Cass Lake, the name of the river changes to Gaa-miskwaawaakokaag-ziibi (Red Cedar River) and then out of Lake Winnibigoshish as Wiinibiigoonzhish-ziibi (Miserable Wretched Dirty Water River), Gichi-ziibi (Big River) after the confluence with the Leech Lake River, then finally as Misi-ziibi (Great River) after the confluence with the Crow Wing River. After the expeditions by Giacomo Beltrami and Henry Schoolcraft, the longest stream above the juncture of the Crow Wing River and Gichi-ziibi was named "Mississippi River". The Mississippi River Band of Chippewa Indians, known as the Gichi-ziibiwininiwag, are named after the stretch of the Mississippi River known as the Gichi-ziibi. The Cheyenne, one of the earliest inhabitants of the upper Mississippi River, called it the Máʼxe-éʼometaaʼe (Big Greasy River) in the Cheyenne language. The Arapaho name for the river is Beesniicíe. The Pawnee name is Kickaátit. The Mississippi was spelled during French Louisiana and was also known as the Rivière Saint-Louis. European exploration In 1519 Spanish explorer Alonso Álvarez de Pineda became the first recorded European to reach the Mississippi River, followed by Hernando de Soto who reached the river on May 8, 1541, and called it Río del Espíritu Santo ("River of the Holy Spirit"), in the area of what is now Mississippi. In Spanish, the river is called Río Mississippi. French explorers Louis Jolliet and Jacques Marquette began exploring the Mississippi in the 17th century. Marquette traveled with a Sioux Indian who named it Ne Tongo ("Big river" in Sioux language) in 1673. Marquette proposed calling it the River of the Immaculate Conception. When Louis Jolliet explored the Mississippi Valley in the 17th century, natives guided him to a quicker way to return to French Canada via the Illinois River. When he found the Chicago Portage, he remarked that a canal of "only half a league" (less than ) would join the Mississippi and the Great Lakes. In 1848, the continental divide separating the waters of the Great Lakes and the Mississippi Valley was breached by the Illinois and Michigan canal via the Chicago River. This both accelerated the development, and forever changed the ecology of the Mississippi Valley and the Great Lakes. In 1682, René-Robert Cavelier, Sieur de La Salle and Henri de Tonti claimed the entire Mississippi River Valley for France, calling the river Colbert River after Jean-Baptiste Colbert and the region La Louisiane, for King Louis XIV. On March 2, 1699, Pierre Le Moyne d'Iberville rediscovered the mouth of the Mississippi, following the death of La Salle. The French built the small fort of La Balise there to control passage. In 1718, about upriver, New Orleans was established along the river crescent by Jean-Baptiste Le Moyne, Sieur de Bienville, with construction patterned after the 1711 resettlement on Mobile Bay of Mobile, the capital of French Louisiana at the time. In 1727, Étienne Perier begins work, using enslaved African laborers, on the first levees on the Mississippi River. Colonization Following Britain's victory in the Seven Years War the Mississippi became the border between the British and Spanish Empires. The Treaty of Paris (1763) gave Great Britain rights to all land east of the Mississippi and Spain rights to land west of the Mississippi. Spain also ceded Florida to Britain to regain Cuba, which the British occupied during the war. Britain then divided the territory into East and West Florida. Article 8 of the Treaty of Paris (1783) states, "The navigation of the river Mississippi, from its source to the ocean, shall forever remain free and open to the subjects of Great Britain and the citizens of the United States". With this treaty, which ended the American Revolutionary War, Britain also ceded West Florida back to Spain to regain the Bahamas, which Spain had occupied during the war. Initial disputes around the ensuing claims of the U.S. and Spain were resolved when Spain was pressured into signing Pinckney's Treaty in 1795. However, in 1800, under duress from Napoleon of France, Spain ceded an undefined portion of West Florida to France in the secret Treaty of San Ildefonso. The United States then secured effective control of the river when it bought the Louisiana Territory from France in the Louisiana Purchase of 1803. This triggered a dispute between Spain and the U.S. on which parts of West Florida Spain had ceded to France in the first place, which would, in turn, decide which parts of West Florida the U.S. had bought from France in the Louisiana Purchase, versus which were unceded Spanish property. Following ongoing U.S. colonization creating facts on the ground, and U.S. military actions, Spain ceded both West Florida and East Florida in their entirety to the United States in the Adams–Onís Treaty of 1819. The last serious European challenge to U.S. control of the river came at the conclusion of War of 1812 when British forces mounted an attack on New Orleans – the attack was repulsed by an American army under the command of General Andrew Jackson. In the Treaty of 1818, the U.S. and Great Britain agreed to fix the border running from the Lake of the Woods to the Rocky Mountains along the 49th parallel north. In effect, the U.S. ceded the northwestern extremity of the Mississippi basin to the British in exchange for the southern portion of the Red River basin. So many settlers traveled westward through the Mississippi river basin, as well as settled in it, that Zadok Cramer wrote a guide book called The Navigator, detailing the features and dangers and navigable waterways of the area. It was so popular that he updated and expanded it through 12 editions over a period of 25 years. The colonization of the area was barely slowed by the three earthquakes in 1811 and 1812, estimated at approximately 8 on the Richter magnitude scale, that were centered near New Madrid, Missouri. Steamboat era Mark Twain's book, Life on the Mississippi, covered the steamboat commerce which took place from 1830 to 1870 on the river before more modern ships replaced the steamer. The book was published first in serial form in Harper's Weekly in seven parts in 1875. The full version, including a passage from the then unfinished Adventures of Huckleberry Finn and works from other authors, was published by James R. Osgood & Company in 1885. The first steamboat to travel the full length of the Lower Mississippi from the Ohio River to New Orleans was the New Orleans in December 1811. Its maiden voyage occurred during the series of New Madrid earthquakes in 1811–12. The Upper Mississippi was treacherous, unpredictable and to make traveling worse, the area was not properly mapped out or surveyed. Until the 1840s, only two trips a year to the Twin Cities landings were made by steamboats which suggests it was not very profitable. Steamboat transport remained a viable industry, both in terms of passengers and freight until the end of the first decade of the 20th century. Among the several Mississippi River system steamboat companies was the noted Anchor Line, which, from 1859 to 1898, operated a luxurious fleet of steamers between St. Louis and New Orleans. Italian explorer Giacomo Beltrami, wrote about his journey on the Virginia, which was the first steamboat to make it to Fort St. Anthony in Minnesota. He referred to his voyage as a promenade that was once a journey on the Mississippi. The steamboat era changed the economic and political life of the Mississippi, as well as the nature of travel itself. The Mississippi was completely changed by the steamboat era as it transformed into a flourishing tourist trade. Civil War Control of the river was a strategic objective of both sides in the American Civil War, forming a part of the U.S. Anaconda Plan. In 1862 Union forces coming down the river successfully cleared Confederate defenses at Island Number 10 and Memphis, Tennessee, while Naval forces coming upriver from the Gulf of Mexico captured New Orleans, Louisiana. The remaining major Confederate stronghold was on the heights overlooking the river at Vicksburg, Mississippi, and the Union's Vicksburg Campaign (December 1862 to July 1863), and the fall of Port Hudson, completed control of the lower Mississippi River. The Union victory ending the Siege of Vicksburg on July 4, 1863, was pivotal to the Union's final victory of the Civil War. 20th and 21st centuries The "Big Freeze" of 1918–19 blocked river traffic north of Memphis, Tennessee, preventing transportation of coal from southern Illinois. This resulted in widespread shortages, high prices, and rationing of coal in January and February. In the spring of 1927, the river broke out of its banks in 145 places, during the Great Mississippi Flood of 1927 and inundated to a depth of up to . In 1930, Fred Newton was the first person to swim the length of the river, from Minneapolis to New Orleans. The journey took 176 days and covered 1,836 miles. In 1962 and 1963, industrial accidents spilled of soybean oil into the Mississippi and Minnesota rivers. The oil covered the Mississippi River from St. Paul to Lake Pepin, creating an ecological disaster and a demand to control water pollution. On October 20, 1976, the automobile ferry, MV George Prince, was struck by a ship traveling upstream as the ferry attempted to cross from Destrehan, Louisiana, to Luling, Louisiana. Seventy-eight passengers and crew died; only eighteen survived the accident. In 1988, the water level of the Mississippi fell to below zero on the Memphis gauge. The remains of wooden-hulled water craft were exposed in an area of on the bottom of the Mississippi River at West Memphis, Arkansas. They dated to the late 19th to early 20th centuries. The State of Arkansas, the Arkansas Archeological Survey, and the Arkansas Archeological Society responded with a two-month data recovery effort. The fieldwork received national media attention as good news in the middle of a drought. The Great Flood of 1993 was another significant flood, primarily affecting the Mississippi above its confluence with the Ohio River at Cairo, Illinois. Two portions of the Mississippi were designated as American Heritage Rivers in 1997: the lower portion around Louisiana and Tennessee, and the upper portion around Iowa, Illinois, Minnesota, Missouri and Wisconsin. The Nature Conservancy's project called "America's Rivershed Initiative" announced a 'report card' assessment of the entire basin in October 2015 and gave the grade of D+. The assessment noted the aging navigation and flood control infrastructure along with multiple environmental problems. In 2002, Slovenian long-distance swimmer Martin Strel swam the entire length of the river, from Minnesota to Louisiana, over the course of 68 days. In 2005, the Source to Sea Expedition paddled the Mississippi and Atchafalaya Rivers to benefit the Audubon Society's Upper Mississippi River Campaign. Future Geologists believe that the lower Mississippi could take a new course to the Gulf. Either of two new routes—through the Atchafalaya Basin or through Lake Pontchartrain—might become the Mississippi's main channel if flood-control structures are overtopped or heavily damaged during a severe flood. Failure of the Old River Control Structure, the Morganza Spillway, or nearby levees would likely re-route the main channel of the Mississippi through Louisiana's Atchafalaya Basin and down the Atchafalaya River to reach the Gulf of Mexico south of Morgan City in southern Louisiana. This route provides a more direct path to the Gulf of Mexico than the present Mississippi River channel through Baton Rouge and New Orleans. While the risk of such a diversion is present during any major flood event, such a change has so far been prevented by active human intervention involving the construction, maintenance, and operation of various levees, spillways, and other control structures by the U.S. Army Corps of Engineers. The Old River Control Structure, between the present Mississippi River channel and the Atchafalaya Basin, sits at the normal water elevation and is ordinarily used to divert 30% of the Mississippi's flow to the Atchafalaya River. There is a steep drop here away from the Mississippi's main channel into the Atchafalaya Basin. If this facility were to fail during a major flood, there is a strong concern the water would scour and erode the river bottom enough to capture the Mississippi's main channel. The structure was nearly lost during the 1973 flood, but repairs and improvements were made after engineers studied the forces at play. In particular, the Corps of Engineers made many improvements and constructed additional facilities for routing water through the vicinity. These additional facilities give the Corps much more flexibility and potential flow capacity than they had in 1973, which further reduces the risk of a catastrophic failure in this area during other major floods, such as that of 2011. Because the Morganza Spillway is slightly higher and well back from the river, it is normally dry on both sides. Even if it failed at the crest during a severe flood, the floodwaters would have to erode to normal water levels before the Mississippi could permanently jump channel at this location. During the 2011 floods, the Corps of Engineers opened the Morganza Spillway to 1/4 of its capacity to allow of water to flood the Morganza and Atchafalaya floodways and continue directly to the Gulf of Mexico, bypassing Baton Rouge and New Orleans. In addition to reducing the Mississippi River crest downstream, this diversion reduced the chances of a channel change by reducing stress on the other elements of the control system. Some geologists have noted that the possibility for course change into the Atchafalaya also exists in the area immediately north of the Old River Control Structure. Army Corps of Engineers geologist Fred Smith once stated, "The Mississippi wants to go west. 1973 was a forty-year flood. The big one lies out there somewhere—when the structures can't release all the floodwaters and the levee is going to have to give way. That is when the river's going to jump its banks and try to break through." Another possible course change for the Mississippi River is a diversion into Lake Pontchartrain near New Orleans. This route is controlled by the Bonnet Carré Spillway, built to reduce flooding in New Orleans. This spillway and an imperfect natural levee about 4–6 meters (12 to 20 feet) high are all that prevents the Mississippi from taking a new, shorter course through Lake Pontchartrain to the Gulf of Mexico. Diversion of the Mississippi's main channel through Lake Pontchartrain would have consequences similar to an Atchafalaya diversion, but to a lesser extent, since the present river channel would remain in use past Baton Rouge and into the New Orleans area. Recreation The sport of water skiing was invented on the river in a wide region between Minnesota and Wisconsin known as Lake Pepin. Ralph Samuelson of Lake City, Minnesota, created and refined his skiing technique in late June and early July 1922. He later performed the first water ski jump in 1925 and was pulled along at by a Curtiss flying boat later that year. There are seven National Park Service sites along the Mississippi River. The Mississippi National River and Recreation Area is the National Park Service site dedicated to protecting and interpreting the Mississippi River itself. The other six National Park Service sites along the river are (listed from north to south): Effigy Mounds National Monument Gateway Arch National Park (includes Gateway Arch) Vicksburg National Military Park Natchez National Historical Park New Orleans Jazz National Historical Park Jean Lafitte National Historical Park and Preserve Ecology The Mississippi basin is home to a highly diverse aquatic fauna and has been called the "mother fauna" of North American fresh water. Fish About 375 fish species are known from the Mississippi basin, far exceeding other North Hemisphere river basins exclusively within temperate/subtropical regions, except the Yangtze. Within the Mississippi basin, streams that have their source in the Appalachian and Ozark highlands contain especially many species. Among the fish species in the basin are numerous endemics, as well as relicts such as paddlefish, sturgeon, gar and bowfin. Because of its size and high species diversity, the Mississippi basin is often divided into subregions. The Upper Mississippi River alone is home to about 120 fish species, including walleye, sauger, large mouth bass, small mouth bass, white bass, northern pike, bluegill, crappie, channel catfish, flathead catfish, common shiner, freshwater drum and shovelnose sturgeon. Other fauna In addition to fish, several species of turtles (such as snapping, musk, mud, map, cooter, painted and softshell turtles), American alligator, aquatic amphibians (such as hellbender, mudpuppy, three-toed amphiuma and lesser siren), and cambarid crayfish (such as the red swamp crayfish) are native to the Mississippi basin. Introduced species Numerous introduced species are found in the Mississippi and some of these are invasive. Among the introductions are fish such as Asian carp, including the silver carp that have become infamous for out-competing native fish and their potentially dangerous jumping behavior. They have spread throughout much of the basin, even approaching (but not yet invading) the Great Lakes. The Minnesota Department of Natural Resources has designated much of the Mississippi River in the state as infested waters by the exotic species zebra mussels and Eurasian watermilfoil. See also Atchafalaya Basin Capes on the Mississippi River Chemetco Great River Road List of crossings of the Lower Mississippi River List of crossings of the Upper Mississippi River List of locks and dams of the Upper Mississippi River List of longest rivers of the United States (by main stem) Mississippi embayment Mississippi River floods Mississippi River System The Waterways Journal Weekly Upper Mississippi River National Wildlife and Fish Refuge Notes References Further reading Ambrose, Stephen. The Mississippi and the Making of a Nation: From the Louisiana Purchase to Today (National Geographical Society, 2002) heavily illustrated Anfinson, John Ogden. Commerce and conservation on the Upper Mississippi River (US Army Corps of Engineers, St. Paul District, 1994) Botkin, Benjamin Albert. A Treasury of Mississippi River folklore: stories, ballads & traditions of the mid-American river country (1984). Carlander, Harriet Bell. A history of fish and fishing in the upper Mississippi River (PhD Diss. Iowa State College, 1954) online (PDF) Daniel, Pete. Deep'n as it come: The 1927 Mississippi River flood (University of Arkansas Press, 1977) Fremling, Calvin R. Immortal river: the Upper Mississippi in ancient and modern times (U. of Wisconsin Press, 2005), popular history Milner, George R. "The late prehistoric Cahokia cultural system of the Mississippi River valley: Foundations, florescence, and fragmentation." Journal of World Prehistory (1990) 4#1 pp: 1–43. Morris, Christopher. The Big Muddy: An Environmental History of the Mississippi and Its Peoples From Hernando de Soto to Hurricane Katrina (Oxford University Press; 2012) 300 pages; links drought, disease, and flooding to the impact of centuries of increasingly intense human manipulation of the river. External links Mississippi River, project of the American Land Conservancy Flood management in the Mississippi River Friends of the Mississippi River Mississippi River Challengeannual canoe & kayak event on the Twin Cities stretch Mississippi River Field Guide . American Heritage Rivers Borders of Arkansas Borders of Illinois Borders of Iowa Borders of Kentucky Borders of Louisiana Borders of Minnesota Borders of Mississippi Borders of Missouri Borders of Tennessee Borders of Wisconsin Rivers of Arkansas Rivers of Illinois Rivers of Iowa Rivers of Kentucky Rivers of Louisiana Rivers of Minnesota Rivers of Mississippi Rivers of Missouri Rivers of Tennessee Rivers of Wisconsin Mississippi embayment

19581

https://en.wikipedia.org/wiki/Men%20in%20black

Men in black

In popular culture and UFO conspiracy theories, men in black (MIB) are supposed men dressed in black suits who claim to be quasi-government agents, who harass, threaten, or sometimes even assassinate unidentified flying object (UFO) witnesses to keep them quiet about what they have seen. The term is also frequently used to describe mysterious men working for unknown organizations, as well as various branches of government allegedly tasked with protecting secrets or performing other strange activities. The term is generic, used for any unusual, threatening, or strangely behaved individual whose appearance on the scene can be linked in some fashion with a UFO sighting. Several alleged encounters with the men in black have been reported by UFO researchers and enthusiasts. The "MIB" supposedly appeared throughout different moments in history. Stories about men in black inspired the semicomic science-fiction Men in Black franchise, and an album by the Stranglers. Folklore Folklorist James R. Lewis compares accounts of men in black with tales of people encountering Lucifer, and speculates that they can be considered a kind of "psychological trauma". Ufologists Men in black figure prominently in ufology and UFO folklore. In the 1950s and 1960s, ufologists adopted a conspiratorial mindset and began to fear they would be subject to organized intimidation in retaliation for discovering "the truth of the UFOs." In 1947, Harold Dahl claimed to have been warned not to talk about his alleged UFO sighting on Maury Island by a man in a dark suit. In the mid-1950s, ufologist Albert K. Bender claimed he was visited by men in dark suits who threatened and warned him not to continue investigating UFOs. Bender maintained that the men in black were secret government agents who had been given the task of suppressing evidence of UFOs. Ufologist John Keel claimed to have had encounters with MIB and referred to them as "demonic supernaturals" with "dark skin and/or 'exotic' facial features." According to ufologist Jerome Clark, reports of men in black represent "experiences" that "don't seem to have occurred in the world of consensus reality." Historian Aaron Gulyas wrote, "during the 1970s, 1980s, and 1990s, UFO conspiracy theorists would incorporate the MIB into their increasingly complex and paranoid visions." Ufologist John Keel has argued that some MIB encounters can be explained as miscast entirely mundane events perpetuated through local folklore. In his 1975 book The Mothman Prophecies, Keel describes a late night outing in 1967 rural West Virginia where he himself was taken for an MIB while searching for a phone to call a tow truck. In his article, "Gray Barker: My Friend, the Myth-Maker," John C. Sherwood claims that, in the late 1960s, at the age of 18, he cooperated when Gray Barker urged him to develop a hoax—which Barker subsequently published—about what Barker called "blackmen", three mysterious UFO inhabitants who silenced Sherwood's pseudonymous identity, "Dr. Richard H. Pratt." In popular media The 1976 Blue Öyster Cult song "E.T.I (Extra Terrestrial Intelligence)," contains the line, "Three men in black said, 'Don't report this.'" Their 1983 song "Take Me Away," which is about the singer's desire to leave Earth with "good guy" aliens, has the line "The men in black, their lips are sealed." In 1979, British Punk Rock/New Wave rock band the Stranglers recorded a song entitled "Meninblack" for their album The Raven, which was released that year. This was followed in 1981 with a concept album The Gospel According to the Meninblack, which featured alien visitations to Earth. Marking perhaps their first cinematic appearance - James T. Flocker's 1979 film The Alien Encounters included Men in Black whom harass a UFO investigator as portrayed by Augie Tribach. The 1984 film The Brother from Another Planet features two Men in Black who try to capture the alien hero. One of them is played by the film's Director, John Sayles.</ref> The 1997 science-fiction film Men In Black, starring Will Smith and Tommy Lee Jones, was loosely based on The Men in Black comic book series created by Lowell Cunningham and Sandy Carruthers. Cunningham had the idea for the comic once a friend of his introduced him to the concept of government "men in black" upon seeing a black van riding the streets. See also Black helicopter The Silence (Doctor Who) References Further reading The Mothman Prophecies - 1975 book by John Keel an account of alleged sightings of a large, winged creature called Mothman in the vicinity of Point Pleasant, West Virginia, during 1966 and 1967, it also narrates encounters of the author with "Men In Black" Los Hombres De Negro y los OVNI - 1979 book by Uruguayan ufologist Fabio Zerpa Conspiracy theories in the United States Extraterrestrial life in popular culture Forteana Secrecy UFO-related phenomena Urban legends

19582

https://en.wikipedia.org/wiki/May%207

May 7

Events Pre-1600 351 – The Jewish revolt against Constantius Gallus breaks out after his arrival at Antioch. 558 – In Constantinople, the dome of the Hagia Sophia collapses, twenty years after its construction. Justinian I immediately orders that the dome be rebuilt. 1274 – In France, the Second Council of Lyon opens to regulate the election of the Pope. 1487 – The Siege of Málaga commences during the Spanish Reconquista. 1544 – The Burning of Edinburgh by an English army is the first action of the Rough Wooing. 1601–1900 1664 – Inaugural celebrations begin at Louis XIV of France's new Palace of Versailles. 1685 – Battle of Vrtijeljka between rebels and Ottoman forces. 1697 – Stockholm's royal castle (dating back to medieval times) is destroyed by fire. It is replaced in the 18th century by the current Royal Palace. 1718 – The city of New Orleans is founded by Jean-Baptiste Le Moyne, Sieur de Bienville. 1763 – Pontiac's War begins with Pontiac's attempt to seize Fort Detroit from the British. 1794 – French Revolution: Robespierre introduces the Cult of the Supreme Being in the National Convention as the new state religion of the French First Republic. 1798 – French Revolutionary Wars: A French force attempting to dislodge a small British garrison on the Îles Saint-Marcouf is repulsed with heavy losses. 1824 – World premiere of Ludwig van Beethoven's Ninth Symphony in Vienna, Austria. The performance is conducted by Michael Umlauf under the composer's supervision. 1832 – Greece's independence is recognized by the Treaty of London. 1840 – The Great Natchez Tornado strikes Natchez, Mississippi killing 317 people. It is the second deadliest tornado in United States history. 1846 – The Cambridge Chronicle, America's oldest surviving weekly newspaper, is published for the first time in Cambridge, Massachusetts. 1864 – American Civil War: The Army of the Potomac, under General Ulysses S. Grant, breaks off from the Battle of the Wilderness and moves southwards. 1864 – The world's oldest surviving clipper ship, the City of Adelaide is launched by William Pile, Hay and Co. in Sunderland, England, for transporting passengers and goods between Britain and Australia. 1895 – In Saint Petersburg, Russian scientist Alexander Stepanovich Popov demonstrates to the Russian Physical and Chemical Society his invention, the Popov lightning detector—a primitive radio receiver. In some parts of the former Soviet Union the anniversary of this day is celebrated as Radio Day. 1901–present 1915 – World War I: German submarine sinks RMS Lusitania, killing 1,198 people, including 128 Americans. Public reaction to the sinking turns many former pro-Germans in the United States against the German Empire. 1915 – The Republic of China accedes to 13 of the 21 Demands, extending the Empire of Japan control over Manchuria and the Chinese economy. 1920 – Kyiv Offensive: Polish troops led by Józef Piłsudski and Edward Rydz-Śmigły and assisted by a symbolic Ukrainian force capture Kyiv only to be driven out by the Red Army counter-offensive a month later. 1920 – Treaty of Moscow: Soviet Russia recognizes the independence of the Democratic Republic of Georgia only to invade the country six months later. 1930 – The 7.1 Salmas earthquake shakes northwestern Iran and southeastern Turkey with a maximum Mercalli intensity of IX (Violent). Up to three-thousand people were killed. 1931 – The stand-off between criminal Francis Crowley and 300 members of the New York Police Department takes place in his fifth-floor apartment on West 91st Street, New York City. 1937 – Spanish Civil War: The German Condor Legion, equipped with Heinkel He 51 biplanes, arrives in Spain to assist Francisco Franco's forces. 1940 – World War II: The Norway Debate in the British House of Commons begins, and leads to the replacement of Prime Minister Neville Chamberlain with Winston Churchill three days later. 1942 – World War II: During the Battle of the Coral Sea, United States Navy aircraft carrier aircraft attack and sink the Imperial Japanese Navy light aircraft carrier Shōhō; the battle marks the first time in naval history that two enemy fleets fight without visual contact between warring ships. 1945 – World War II: Last German U-boat attack of the war, two freighters are sunk off the Firth of Forth, Scotland. 1945 – World War II: General Alfred Jodl signs unconditional surrender terms at Reims, France, ending Germany's participation in the war. The document takes effect the next day. 1946 – Tokyo Telecommunications Engineering (later renamed Sony) is founded. 1948 – The Council of Europe is founded during the Hague Congress. 1952 – The concept of the integrated circuit, the basis for all modern computers, is first published by Geoffrey Dummer. 1954 – Indochina War: The Battle of Dien Bien Phu ends in a French defeat and a Viet Minh victory (the battle began on March 13). 1960 – Cold War: U-2 Crisis of 1960: Soviet leader Nikita Khrushchev announces that his nation is holding American U-2 pilot Gary Powers. 1986 – Canadian Patrick Morrow becomes the first person to climb each of the Seven Summits. 1992 – Michigan ratifies a 203-year-old proposed amendment to the United States Constitution making the 27th Amendment law. This amendment bars the U.S. Congress from giving itself a mid-term pay raise. 1992 – Space Shuttle program: The Space Shuttle Endeavour is launched on its first mission, STS-49. 1992 – Three employees at a McDonald's Restaurant in Sydney, Nova Scotia, Canada, are brutally murdered and a fourth permanently disabled after a botched robbery. It is the first "fast-food murder" in Canada. 1994 – Edvard Munch's painting The Scream is recovered undamaged after being stolen from the National Gallery of Norway in February. 1998 – Mercedes-Benz buys Chrysler for US$40 billion and forms DaimlerChrysler in the largest industrial merger in history. 1999 – Pope John Paul II travels to Romania, becoming the first pope to visit a predominantly Eastern Orthodox country since the Great Schism in 1054. 1999 – Kosovo War: Three Chinese citizens are killed and 20 wounded when a NATO aircraft apparently inadvertently bombs the Chinese embassy in Belgrade, Serbia. 1999 – In Guinea-Bissau, President João Bernardo Vieira is ousted in a military coup. 2000 – Vladimir Putin is inaugurated as president of Russia. 2002 – An EgyptAir Boeing 737-500 crashes on approach to Tunis–Carthage International Airport, killing 14 people. 2002 – A China Northern Airlines MD-82 plunges into the Yellow Sea, killing 112 people. 2004 – American businessman Nick Berg is beheaded by Islamic militants. The act is recorded on videotape and released on the Internet. Births Pre-1600 Before 160 – Julia Maesa, Roman noblewoman (d. 224) 1488 – John III of the Palatinate, archbishop of Regensburg (d. 1538) 1530 – Louis, Prince of Condé (d. 1569) 1553 – Albert Frederick, Duke of Prussia (d. 1618) 1605 – Patriarch Nikon of Moscow (d. 1681) 1643 – Stephanus Van Cortlandt, American politician, 10th Mayor of New York City (d. 1700) 1601–1900 1700 – Gerard van Swieten, Dutch-Austrian physician (d. 1772) 1701 – Carl Heinrich Graun, German tenor and composer (d. 1759) 1711 – David Hume, Scottish economist, historian, and philosopher (d. 1776) 1724 – Dagobert Sigmund von Wurmser, French-Austrian field marshal (d. 1797) 1740 – Nikolai Arkharov, Russian police officer and general (d. 1814) 1748 – Olympe de Gouges, French playwright and philosopher (d. 1793) 1763 – Józef Poniatowski, Polish general (d. 1813) 1767 – Princess Frederica Charlotte of Prussia (d. 1820) 1774 – William Bainbridge, American commodore (d. 1833) 1787 – Jacques Viger, Canadian archaeologist and politician, 1st mayor of Montreal (d. 1858) 1812 – Robert Browning, English poet and playwright (d. 1889) 1833 – Johannes Brahms, German pianist and composer (d. 1897) 1836 – Joseph Gurney Cannon, American lawyer and politician, 40th Speaker of the United States House of Representatives (d. 1926) 1837 – Karl Mauch, German geographer and explorer (d. 1875) 1840 – Pyotr Ilyich Tchaikovsky, Russian composer and educator (d. 1893) 1845 – Mary Eliza Mahoney, American nurse and activist (d. 1926) 1847 – Archibald Primrose, 5th Earl of Rosebery, English politician, Prime Minister of the United Kingdom (d. 1929) 1857 – William A. MacCorkle, American lawyer and politician, 9th Governor of West Virginia (d. 1930) 1860 – Tom Norman, English businessman (d. 1930) 1861 – Rabindranath Tagore, Indian author and poet, Nobel Prize laureate (d. 1941) 1867 – Władysław Reymont, Polish novelist, Nobel Prize laureate (d. 1925) 1875 – Bill Hoyt, American pole vaulter (d. 1951) 1880 – Pandurang Vaman Kane, Indologist and Sanskrit scholar, Bharat Ratna awardee (d. 1972) 1881 – George E. Wiley, American cyclist (d. 1954) 1882 – Willem Elsschot, Belgian author and poet (d. 1960) 1885 – George "Gabby" Hayes, American actor (d. 1969) 1889 – Viktor Puskar, Estonian colonel (d. 1943) 1891 – Harry McShane, Scottish engineer and activist (d. 1988) 1892 – Archibald MacLeish, American poet, playwright, and lawyer (d. 1982) 1892 – Josip Broz Tito, Yugoslav field marshal and politician, 1st President of Yugoslavia (d. 1980) 1893 – Frank J. Selke, Canadian ice hockey coach and manager (d. 1985) 1896 – Kathleen McKane Godfree, English tennis and badminton player (d. 1992) 1899 – Alfred Gerrard, English sculptor and academic (d. 1998) 1901–present 1901 – Gary Cooper, American actor (d. 1961) 1903 – Jimmy Ball, Canadian sprinter (d. 1988) 1904 – Kurt Weitzmann, German-American historian and author (d. 1993) 1905 – Philip Baxter, Welsh-Australian chemical engineer (d. 1989) 1906 – Eric Krenz, American discus thrower and shot putter (d. 1931) 1909 – Edwin H. Land, American scientist and inventor, co-founded the Polaroid Corporation (d. 1991) 1909 – Dorothy Sunrise Lorentino, Native American teacher (d. 2005) 1911 – Ishirō Honda, Japanese director, producer, and screenwriter (d. 1993) 1911 – Rıfat Ilgaz, Turkish author, poet, and educator (d. 1993) 1912 – Pannalal Patel, Indian author (d. 1989) 1913 – John Spencer Hardy, American general (d. 2012) 1913 – Simon Ramo, American physicist and engineer (d. 2016) 1914 – Arthur Snelling, English civil servant and diplomat. British Ambassador to South Africa (d. 1996) 1916 – Huw Wheldon, Welsh-English broadcaster (d. 1986) 1916 – W. B. Young, Scottish rugby player and physician (d. 2013) 1917 – Domenico Bartolucci, Italian cardinal and composer (d. 2013) 1917 – Lenox Hewitt, Australian public servant (d. 2020) 1917 – David Tomlinson, English actor (d. 2000) 1919 – Eva Perón, Argentinian actress, 25th First Lady of Argentina (d. 1952) 1920 – Rendra Karno, Indonesian actor (d. 1985) 1921 – Asa Briggs, Baron Briggs, English historian and academic (d. 2016) 1921 – Gaston Rébuffat, French mountaineer and author (d. 1985) 1922 – Darren McGavin, American actor and director (d. 2006) 1922 – Joe O'Donnell, American photographer and journalist (d. 2007) 1923 – Anne Baxter, American actress (d. 1985) 1923 – Jim Lowe, American singer-songwriter, disc jockey, and radio host (d. 2016) 1923 – Bülent Ulusu, Turkish admiral and politician, 18th Prime Minister of Turkey (d. 2015) 1924 – Albert Band, French-American director and producer (d. 2002) 1925 – Lauri Vaska, Estonian-American chemist and academic (d. 2015) 1927 – Ruth Prawer Jhabvala, German-American author and screenwriter (d. 2013) 1929 – Dick Williams, American baseball player, coach, and manager (d. 2011) 1930 – Totie Fields, American comedian and author (d. 1978) 1930 – Babe Parilli, American football player and coach (d. 2017) 1930 – John Smith, Baron Kirkhill, English politician 1931 – Teresa Brewer, American singer (d. 2007) 1931 – Gene Wolfe, American author (d. 2019) 1932 – Jordi Bonet, Spanish-Canadian painter and sculptor (d. 1979) 1932 – Alan Cuthbert, English pharmacologist and academic (d. 2016) 1932 – Pete Domenici, American lawyer and politician, 37th Mayor of Albuquerque (d. 2017) 1932 – Derek Taylor, English journalist and author (d. 1997) 1933 – Johnny Unitas, American football player and sportscaster (d. 2002) 1935 – Avraham Heffner, Israeli actor, director, and screenwriter (d. 2014) 1935 – Michael Hopkins, English architect 1936 – Robin Hanbury-Tenison, English explorer and author 1936 – Tony O'Reilly, Irish rugby player and businessman 1936 – Jimmy Ruffin, American soul singer (d. 2014) 1937 – Eddie Clayton, English footballer 1937 – Claude Raymond, Canadian baseball player and coach 1939 – Sidney Altman, Canadian-American biologist and academic, Nobel Prize laureate 1939 – Ruggero Deodato, Italian actor, director, and screenwriter 1939 – Ruud Lubbers, Dutch economist and politician, Prime Minister of the Netherlands (d. 2018) 1939 – Johnny Maestro, American pop/doo-wop singer (d. 2010) 1939 – Clive Soley, Baron Soley, English politician 1940 – Angela Carter, English novelist and short story writer (d. 1992) 1940 – Dave Chambers, Canadian ice hockey player and coach 1941 – Lawrence Collins, Baron Collins of Mapesbury, English lawyer and judge 1943 – Terry Allen, American singer and painter 1943 – Harvey Andrews, English singer-songwriter and poet 1943 – John Bannon, Australian academic and politician, 39th Premier of South Australia (d. 2015) 1943 – Peter Carey, Australian novelist and short story writer 1945 – Christy Moore, Irish singer-songwriter and guitarist 1945 – Robin Strasser, American actress 1946 – Thelma Houston, American R&B/disco singer and actress 1946 – Marv Hubbard, American football player (d. 2015) 1946 – Bill Kreutzmann, American drummer 1946 – Michael Rosen, English author and poet 1946 – Brian Turner, English chef and television host 1949 – Kathy Ahern, American golfer (d. 1996) 1949 – Deborah Butterfield, American sculptor 1950 – John Dowling Coates, Australian lawyer, sports administrator and businessman 1950 – Randall "Tex" Cobb, American boxer and actor 1950 – Tim Russert, American television journalist and lawyer (d. 2008) 1953 – Pat McInally, American football player and coach 1953 – Ian McKay, English sergeant, Victoria Cross recipient (d. 1982) 1954 – Philippe Geluck, Belgian cartoonist 1954 – Joanna Haigh, English meteorologist and physicist 1954 – Amy Heckerling, American director, producer, and screenwriter 1955 – Clément Gignac, Canadian politician 1955 – Axel Zwingenberger, German pianist and songwriter 1956 – Jan Peter Balkenende, Dutch jurist and politician, Prime Minister of the Netherlands 1956 – Anne Dudley, English pianist and composer 1956 – Nicholas Hytner, English director and producer 1956 – Jean Lapierre, Canadian talk show host and politician (d. 2016) 1956 – Calum MacDonald, Scottish journalist and politician 1957 – Kristina M. Johnson, American business executive, engineer, academic, and government official 1958 – Mikhail Biryukov, Russian footballer and manager 1958 – Mark G. Kuzyk, American physicist and academic 1958 – Anne Marie Rafferty, English nurse and academic 1959 – Michael E. Knight, American actor 1959 – Tony Sealy, English footballer and manager 1959 – Heiki Valk, Estonian archeologist and academic 1960 – Adam Bernstein, American director and screenwriter 1960 – Ara Darzi, Baron Darzi of Denham, Iraqi-English surgeon and academic 1960 – Almudena Grandes, Spanish author 1961 – Hans-Peter Bartels, German politician 1961 – Sue Black, Scottish anthropologist and academic 1961 – Ivar Must, Estonian composer and producer 1962 – Tony Campbell, American basketball player and coach 1962 – Judith Donath, American computer scientist and academic 1964 – Ronnie Harmon, American football player 1964 – Denis Mandarino, Brazilian guitarist, composer, and painter 1964 – Leslie O'Neal, American football player 1965 – Reuben Davis, American football player 1965 – Owen Hart, Canadian wrestler (d. 1999) 1965 – Norman Whiteside, Northern Irish footballer and manager 1965 – Huang Zhihong, Chinese shot putter 1967 – Martin Bryant, Australian mass murderer 1967 – Adam Price, Danish chef and screenwriter 1967 – Joe Rice, American colonel and politician 1968 – Traci Lords, American actress and singer 1968 – Lisa Raitt, Canadian lawyer and politician, 30th Canadian Minister of Transport 1969 – Eagle-Eye Cherry, Swedish singer-songwriter 1969 – Jun Falkenstein, American director, producer, and screenwriter 1969 – Katerina Maleeva, Bulgarian tennis player 1971 – Reidar Horghagen, Norwegian drummer 1971 – Dave Karpa, Canadian ice hockey player 1971 – Thomas Piketty, French economist 1972 – Peter Dubovský, Czech-Slovak footballer (d. 2000) 1972 – Frank Trigg, American mixed martial artist and wrestler 1973 – Kristian Lundin, Swedish songwriter and producer 1973 – Paolo Savoldelli, Italian cyclist 1974 – Ian Pearce, English footballer and assistant manager 1973 – Lawrence Johnson, American pole vaulter 1975 – Ashley Cowan, English cricketer 1976 – Calvin Booth, American basketball player 1976 – Berke Hatipoğlu, Turkish guitarist and songwriter 1976 – Stacey Jones, New Zealand rugby league player 1976 – Andrea Lo Cicero, Italian rugby player 1976 – Michael P. Murphy, American lieutenant, Medal of Honor recipient (d. 2005) 1976 – Ayelet Shaked, Israeli Minister of Justice (2015-2019) 1977 – Elton Flatley, Australian rugby player 1978 – Stian Arnesen, Norwegian guitarist, drummer, and songwriter 1978 – James Carter, American hurdler 1978 – Shawn Marion, American basketball player 1979 – Katie Douglas, American basketball player 1983 – Phionah Atuhebwe, Ugandan vaccinologist and immunization expert 1984 – Kevin Owens, Canadian wrestler 1985 – Jarrad Hickey, Australian rugby league player 1985 – Drew Neitzel, American basketball player 1986 – Matt Helders, English drummer 1987 – Asami Konno, Japanese singer 1987 – Michael Maidens, English footballer (d. 2007) 1987 – Mark Reynolds, Scottish footballer 1987 – David Schlemko, Canadian ice hockey player 1988 – Eino Puri, Estonian footballer 1988 – Sander Puri, Estonian footballer 1989 – Earl Thomas, American football player 1995 – Seko Fofana, French born Ivorian international footballer 1997 – Daria Kasatkina, Russian tennis player 1998 – Maryna Piddubna, Ukrainian Paralympic swimmer 1998 – Jesse Puljujärvi, Finnish ice hockey player 1998 – Mr. Beast, American youtube personality Deaths Pre-1600 721 – John of Beverley, bishop of York 833 – Ibn Hisham, Egyptian Muslim historian 973 – Otto I, Holy Roman Emperor (b. 912) 1014 – Bagrat III, 1st King of Georgia (b. 960) 1092 – Remigius de Fécamp, English monk and bishop 1166 – William I of Sicily 1202 – Hamelin de Warenne, Earl of Surrey 1205 – Ladislaus III of Hungary (b. 1201) 1234 – Otto I, Duke of Merania (b. c. 1180) 1243 – Hugh d'Aubigny, 5th Earl of Arundel 1427 – Thomas la Warr, 5th Baron De La Warr, English priest (b. 1352) 1494 – Eskender, Emperor of Ethiopia (b. 1471) 1523 – Franz von Sickingen, German knight (b. 1481) 1539 – Ottaviano Petrucci, Italian printer (b. 1466) 1601–1900 1617 – David Fabricius, German astronomer and theologian (b. 1564) 1667 – Johann Jakob Froberger, German organist and composer (b. 1616) 1682 – Feodor III of Russia (b. 1661) 1685 – Bajo Pivljanin (b. 1630) 1718 – Mary of Modena (b. 1658) 1793 – Pietro Nardini, Italian violinist and composer (b. 1722) 1800 – Niccolò Piccinni, Italian composer (b. 1728) 1805 – William Petty, 2nd Earl of Shelburne, Irish-English general and politician, Prime Minister of the United Kingdom (b. 1737) 1815 – Jabez Bowen, American colonel and politician, 45th Deputy Governor of Rhode Island (b. 1739) 1825 – Antonio Salieri, Italian composer and conductor (b. 1750) 1840 – Caspar David Friedrich, German painter and educator (b. 1774) 1868 – Henry Brougham, 1st Baron Brougham and Vaux, Scottish lawyer and politician, Lord High Chancellor of Great Britain (b. 1778) 1872 – Alexander Loyd, American carpenter and politician, 4th Mayor of Chicago (b. 1805) 1876 – William Buell Sprague, American clergyman, historian, and author (b. 1795) 1887 – C. F. W. Walther, German-American religious leader and theologian (b. 1811) 1896 – H. H. Holmes, American serial killer (b. 1861) 1901–present 1902 – Agostino Roscelli, Italian priest and saint (b. 1818) 1917 – Albert Ball, English fighter pilot (b. 1896) 1922 – Max Wagenknecht, German pianist and composer (b. 1857) 1924 – Alluri Sitarama Raju, Indian activist (b. 1897/1898) 1925 – William Lever, 1st Viscount Leverhulme, English businessman and politician (b. 1851) 1937 – Ernst A. Lehmann, German captain and author (b. 1886) 1938 – Octavian Goga, Romanian politician, former Prime Minister (b. 1881) 1940 – George Lansbury, English journalist and politician (b. 1859) 1941 – James George Frazer, Scottish-English anthropologist and academic (b. 1854) 1942 – Felix Weingartner, Croatian pianist, composer, and conductor (b. 1863) 1943 – Fethi Okyar, Turkish colonel and politician, 2nd Prime Minister of Turkey (b. 1880) 1946 – Herbert Macaulay, Nigerian journalist and politician (b. 1864) 1951 – Warner Baxter, American actor (b. 1889) 1967 – Margaret Larkin, American writer and poet (b. 1899) 1958 – Mihkel Lüdig, Estonian organist, composer, and conductor (b. 1880) 1976 – Alison Uttley, English children's book writer (b. 1884) 1978 – Mort Weisinger, American journalist and author (b. 1915) 1986 – Haldun Taner, Turkish playwright and author (b. 1915) 1987 – Colin Blakely, Northern Irish actor (b. 1930) 1987 – Paul Popham, American soldier and activist, co-founded Gay Men's Health Crisis (b. 1941) 1990 – Sam Tambimuttu, Sri Lankan lawyer and politician (b. 1932) 1994 – Clement Greenberg, American art critic (b. 1909) 1995 – Ray McKinley, American drummer, singer, and bandleader (Glenn Miller Orchestra) (b. 1910) 1998 – Allan McLeod Cormack, South African-English physicist and academic, Nobel Prize laureate (b. 1924) 1998 – Eddie Rabbitt, American singer-songwriter and guitarist (b. 1941) 2000 – Douglas Fairbanks, Jr., American captain, actor, and producer (b. 1909) 2001 – Jacques de Bourbon-Busset, French author and politician (b. 1912) 2004 – Waldemar Milewicz, Polish journalist (b. 1956) 2005 – Tristan Egolf, American author and activist (b. 1971) 2005 – Peter Rodino, American captain and politician (b. 1909) 2005 – Otilino Tenorio, Ecuadorian footballer (b. 1980) 2006 – Richard Carleton, Australian journalist (b. 1943) 2006 – Joan C. Edwards, American singer and philanthropist (b. 1918) 2007 – Isabella Blow, English magazine editor (b. 1958) 2007 – Diego Corrales, American boxer (b. 1977) 2007 – Octavian Paler, Romanian journalist and politician (b. 1926) 2007 – Yahweh ben Yahweh, American cult leader, founded the Nation of Yahweh (b. 1935) 2009 – David Mellor, English designer (b. 1930) 2009 – Danny Ozark, American baseball player, coach, and manager (b. 1923) 2011 – Seve Ballesteros, Spanish golfer (b. 1957) 2011 – Willard Boyle, Canadian physicist and academic, Nobel Prize laureate (b. 1924) 2011 – Big George, English songwriter, producer, and radio host (b. 1957) 2012 – Sammy Barr, Scottish trade union leader (b. 1931) 2012 – Ferenc Bartha, Hungarian economist and politician (b. 1943) 2012 – Dennis E. Fitch, American captain and pilot (b. 1942) 2013 – Ferruccio Mazzola, Italian footballer and manager (b. 1948) 2013 – George Sauer, Jr., American football player (b. 1943) 2014 – Neville McNamara, Australian air marshal (b. 1923) 2014 – Colin Pillinger, English astronomer, chemist, and academic (b. 1943) 2014 – Dick Welteroth, American baseball player (b. 1927) 2015 – Frank DiPascali, American businessman (b. 1956) 2015 – John Dixon, Australian-American author and illustrator (b. 1929) Holidays and observances Christian feast day: Agathius of Byzantium Agostino Roscelli Pope Benedict II Flavia Domitilla Gisela of Hungary Harriet Starr Cannon (Episcopal Church (USA)) John of Beverley Rose Venerini Stanislaus (Roman Martyrology) May 7 (Eastern Orthodox liturgics) Defender of the Fatherland Day (Kazakhstan) Dien Bien Phu Victory Day (Vietnam) Radio Day, commemorating the work of Alexander Popov (Russia, Bulgaria) Be Best Day (United States) References External links BBC: On This Day Historical Events on May 7 Today in Canadian History Days of the year May

19583

https://en.wikipedia.org/wiki/Monomer

Monomer

In chemistry, a monomer ( ; mono-, "one" + -mer, "part") is a molecule that can react together with other monomer molecules to form a larger polymer chain or three-dimensional network in a process called polymerization. Classification Monomers can be classified in many ways. They can be subdivided into two broad classes, depending on the kind of the polymer that they form. Monomers that participate in condensation polymerization have a different stoichiometry than monomers that participate in addition polymerization: Other classifications include: natural vs synthetic monomers, e.g. glycine vs caprolactam, respectively polar vs nonpolar monomers, e.g. vinyl acetate vs ethylene, respectively cyclic vs linear, e.g. ethylene oxide vs ethylene glycol, respectively The polymerization of one kind of monomer gives a homopolymer. Many polymers are copolymers, meaning that they are derived from two different monomers. In the case of condensation polymerizations, the ratio of comonomers is usually 1:1. For example, the formation of many nylons requires equal amounts of a dicarboxylic acid and diamine. In the case of addition polymerizations, the comonomer content is often only a few percent. For example, small amounts of 1-octene monomer are copolymerized with ethylene to give specialized polyethylene. Synthetic monomers Ethylene gas (H2C=CH2) is the monomer for polyethylene. Other modified ethylene derivatives include: tetrafluoroethylene (F2C=CF2) which leads to Teflon vinyl chloride (H2C=CHCl) which leads to PVC styrene (C6H5CH=CH2) which leads to polystyrene Epoxide monomers may be cross linked with themselves, or with the addition of a co-reactant, to form epoxy BPA is the monomer precursor for polycarbonate Terephthalic acid is a comonomer that, with ethylene glycol, forms polyethylene terephthalate. Dimethylsilicon dichloride is a monomer that, upon hydrolysis, gives polydimethylsiloxane. Ethyl methacrylate is an acrylic monomer that, when combined with an acrylic polymer, catalyzes and forms an acrylate plastic used to create artificial nail extensions Biopolymers The term "monomeric protein" may also be used to describe one of the proteins making up a multiprotein complex. Natural monomers Some of the main biopolymers are listed below: Amino acids For proteins, the monomers are amino acids. Polymerization occurs at ribosomes. Usually about 20 types of amino acid monomers are used to produce proteins. Hence proteins are not homopolymers. Nucleotides For polynucleic acids (DNA/RNA), the monomers are nucleotides, each of which is made of a pentose sugar, a nitrogenous base and a phosphate group. Nucleotide monomers are found in the cell nucleus. Four types of nucleotide monomers are precursors to DNA and four different nucleotide monomers are precursors to RNA. Glucose and related sugars For carbohydrates, the monomers are monosaccharides. The most abundant natural monomer is glucose, which is linked by glycosidic bonds into the polymers cellulose, starch, and glycogen. Isoprene Isoprene is a natural monomer that polymerizes to form natural rubber, most often cis-1,4-polyisoprene, but also trans-1,4-polymer. Synthetic rubbers are often based on butadiene, which is structurally related to isoprene. See also Protein subunit List of publications in polymer chemistry Prepolymer Notes

19588

https://en.wikipedia.org/wiki/Mitochondrion

Mitochondrion

A mitochondrion (; ) is a double-membrane-bound organelle found in most eukaryotic organisms. Mitochondria generate most of the cell's supply of adenosine triphosphate (ATP), subsequently utilized as a source of chemical energy, using the energy of oxygen released in aerobic respiration at the inner mitochondrial membrane. They were first discovered by Albert von Kölliker in 1880 in the voluntary muscles of insects. The mitochondrion is popularly nicknamed the "powerhouse of the cell", a phrase coined by Philip Siekevitz in a 1957 article of the same name. Some cells in some multicellular organisms lack mitochondria (for example, mature mammalian red blood cells). A large number of unicellular organisms, such as microsporidia, parabasalids and diplomonads, have reduced or transformed their mitochondria into other structures. One eukaryote, Monocercomonoides, is known to have completely lost its mitochondria, and one multicellular organism, Henneguya salminicola, is known to have retained mitochondrion-related organelles in association with a complete loss of their mitochondrial genome. Mitochondria are commonly between 0.75 and 3 μm in area, but vary considerably in size and structure. Unless specifically stained, they are not visible. In addition to supplying cellular energy, mitochondria are involved in other tasks, such as signaling, cellular differentiation, and cell death, as well as maintaining control of the cell cycle and cell growth. Mitochondrial biogenesis is in turn temporally coordinated with these cellular processes. Mitochondria have been implicated in several human disorders and conditions, such as mitochondrial diseases, cardiac dysfunction, heart failure and autism. The number of mitochondria in a cell can vary widely by organism, tissue, and cell type. A mature red blood cell has no mitochondria, whereas a liver cell can have more than 2000. The mitochondrion is composed of compartments that carry out specialized functions. These compartments or regions include the outer membrane, intermembrane space, inner membrane, cristae and matrix. Although most of a cell's DNA is contained in the cell nucleus, the mitochondrion has its own genome ("mitogenome") that is substantially similar to bacterial genomes. Mitochondrial proteins (proteins transcribed from mitochondrial DNA) vary depending on the tissue and the species. In humans, 615 distinct types of proteins have been identified from cardiac mitochondria, whereas in rats, 940 proteins have been reported. The mitochondrial proteome is thought to be dynamically regulated. Structure Mitochondria may have a number of different shapes. A mitochondrion contains outer and inner membranes composed of phospholipid bilayers and proteins. The two membranes have different properties. Because of this double-membraned organization, there are five distinct parts to a mitochondrion: The outer mitochondrial membrane, The intermembrane space (the space between the outer and inner membranes), The inner mitochondrial membrane, The cristae space (formed by infoldings of the inner membrane), and The matrix (space within the inner membrane), which is a fluid. Mitochondria have folding to increase surface area, which in turn increases ATP (adenosine triphosphate) production. Mitochondria stripped of their outer membrane are called mitoplasts. Outer membrane The outer mitochondrial membrane, which encloses the entire organelle, is 60 to 75 angstroms (Å) thick. It has a protein-to-phospholipid ratio similar to that of the cell membrane (about 1:1 by weight). It contains large numbers of integral membrane proteins called porins. A major trafficking protein is the pore-forming voltage-dependent anion channel (VDAC). The VDAC is the primary transporter of nucleotides, ions and metabolites between the cytosol and the intermembrane space. It is formed as a beta barrel that spans the outer membrane, similar to that in the gram-negative bacterial membrane. Larger proteins can enter the mitochondrion if a signaling sequence at their N-terminus binds to a large multisubunit protein called translocase in the outer membrane, which then actively moves them across the membrane. Mitochondrial pro-proteins are imported through specialised translocation complexes. The outer membrane also contains enzymes involved in such diverse activities as the elongation of fatty acids, oxidation of epinephrine, and the degradation of tryptophan. These enzymes include monoamine oxidase, rotenone-insensitive NADH-cytochrome c-reductase, kynurenine hydroxylase and fatty acid Co-A ligase. Disruption of the outer membrane permits proteins in the intermembrane space to leak into the cytosol, leading to cell death. The outer mitochondrial membrane can associate with the endoplasmic reticulum (ER) membrane, in a structure called MAM (mitochondria-associated ER-membrane). This is important in the ER-mitochondria calcium signaling and is involved in the transfer of lipids between the ER and mitochondria. Outside the outer membrane are small (diameter: 60 Å) particles named sub-units of Parson. Intermembrane space The mitochondrial intermembrane space is the space between the outer membrane and the inner membrane. It is also known as perimitochondrial space. Because the outer membrane is freely permeable to small molecules, the concentrations of small molecules, such as ions and sugars, in the intermembrane space is the same as in the cytosol. However, large proteins must have a specific signaling sequence to be transported across the outer membrane, so the protein composition of this space is different from the protein composition of the cytosol. One protein that is localized to the intermembrane space in this way is cytochrome c. Inner membrane The inner mitochondrial membrane contains proteins with three types of functions: Those that perform the electron transport chain redox reactions ATP synthase, which generates ATP in the matrix Specific transport proteins that regulate metabolite passage into and out of the mitochondrial matrix It contains more than 151 different polypeptides, and has a very high protein-to-phospholipid ratio (more than 3:1 by weight, which is about 1 protein for 15 phospholipids). The inner membrane is home to around 1/5 of the total protein in a mitochondrion. Additionally, the inner membrane is rich in an unusual phospholipid, cardiolipin. This phospholipid was originally discovered in cow hearts in 1942, and is usually characteristic of mitochondrial and bacterial plasma membranes. Cardiolipin contains four fatty acids rather than two, and may help to make the inner membrane impermeable. Unlike the outer membrane, the inner membrane does not contain porins, and is highly impermeable to all molecules. Almost all ions and molecules require special membrane transporters to enter or exit the matrix. Proteins are ferried into the matrix via the translocase of the inner membrane (TIM) complex or via OXA1L. In addition, there is a membrane potential across the inner membrane, formed by the action of the enzymes of the electron transport chain. Inner membrane fusion is mediated by the inner membrane protein OPA1. Cristae The inner mitochondrial membrane is compartmentalized into numerous folds called cristae, which expand the surface area of the inner mitochondrial membrane, enhancing its ability to produce ATP. For typical liver mitochondria, the area of the inner membrane is about five times as large as the outer membrane. This ratio is variable and mitochondria from cells that have a greater demand for ATP, such as muscle cells, contain even more cristae. Mitochondria within the same cell can have substantially different crista-density, with the ones that are required to produce more energy having much more crista-membrane surface. These folds are studded with small round bodies known as F particles or oxysomes. Matrix The matrix is the space enclosed by the inner membrane. It contains about 2/3 of the total proteins in a mitochondrion. The matrix is important in the production of ATP with the aid of the ATP synthase contained in the inner membrane. The matrix contains a highly concentrated mixture of hundreds of enzymes, special mitochondrial ribosomes, tRNA, and several copies of the mitochondrial DNA genome. Of the enzymes, the major functions include oxidation of pyruvate and fatty acids, and the citric acid cycle. The DNA molecules are packaged into nucleoids by proteins, one of which is TFAM. Function The most prominent roles of mitochondria are to produce the energy currency of the cell, ATP (i.e., phosphorylation of ADP), through respiration and to regulate cellular metabolism. The central set of reactions involved in ATP production are collectively known as the citric acid cycle, or the Krebs cycle. However, the mitochondrion has many other functions in addition to the production of ATP. Energy conversion A dominant role for the mitochondria is the production of ATP, as reflected by the large number of proteins in the inner membrane for this task. This is done by oxidizing the major products of glucose: pyruvate, and NADH, which are produced in the cytosol. This type of cellular respiration, known as aerobic respiration, is dependent on the presence of oxygen, which provides most of the energy released. When oxygen is limited, the glycolytic products will be metabolized by anaerobic fermentation, a process that is independent of the mitochondria. The production of ATP from glucose and oxygen has an approximately 13-times higher yield during aerobic respiration compared to fermentation. Plant mitochondria can also produce a limited amount of ATP either by breaking the sugar produced during photosynthesis or without oxygen by using the alternate substrate nitrite. ATP crosses out through the inner membrane with the help of a specific protein, and across the outer membrane via porins. ADP returns via the same route. Pyruvate and the citric acid cycle Pyruvate molecules produced by glycolysis are actively transported across the inner mitochondrial membrane, and into the matrix where they can either be oxidized and combined with coenzyme A to form CO, acetyl-CoA, and NADH, or they can be carboxylated (by pyruvate carboxylase) to form oxaloacetate. This latter reaction "fills up" the amount of oxaloacetate in the citric acid cycle and is therefore an anaplerotic reaction, increasing the cycle's capacity to metabolize acetyl-CoA when the tissue's energy needs (e.g., in muscle) are suddenly increased by activity. In the citric acid cycle, all the intermediates (e.g. citrate, iso-citrate, alpha-ketoglutarate, succinate, fumarate, malate and oxaloacetate) are regenerated during each turn of the cycle. Adding more of any of these intermediates to the mitochondrion therefore means that the additional amount is retained within the cycle, increasing all the other intermediates as one is converted into the other. Hence, the addition of any one of them to the cycle has an anaplerotic effect, and its removal has a cataplerotic effect. These anaplerotic and cataplerotic reactions will, during the course of the cycle, increase or decrease the amount of oxaloacetate available to combine with acetyl-CoA to form citric acid. This in turn increases or decreases the rate of ATP production by the mitochondrion, and thus the availability of ATP to the cell. Acetyl-CoA, on the other hand, derived from pyruvate oxidation, or from the beta-oxidation of fatty acids, is the only fuel to enter the citric acid cycle. With each turn of the cycle one molecule of acetyl-CoA is consumed for every molecule of oxaloacetate present in the mitochondrial matrix, and is never regenerated. It is the oxidation of the acetate portion of acetyl-CoA that produces CO and water, with the energy thus released captured in the form of ATP. In the liver, the carboxylation of cytosolic pyruvate into intra-mitochondrial oxaloacetate is an early step in the gluconeogenic pathway, which converts lactate and de-aminated alanine into glucose, under the influence of high levels of glucagon and/or epinephrine in the blood. Here, the addition of oxaloacetate to the mitochondrion does not have a net anaplerotic effect, as another citric acid cycle intermediate (malate) is immediately removed from the mitochondrion to be converted to cytosolic oxaloacetate, and ultimately to glucose, in a process that is almost the reverse of glycolysis. The enzymes of the citric acid cycle are located in the mitochondrial matrix, with the exception of succinate dehydrogenase, which is bound to the inner mitochondrial membrane as part of Complex II. The citric acid cycle oxidizes the acetyl-CoA to carbon dioxide, and, in the process, produces reduced cofactors (three molecules of NADH and one molecule of FADH) that are a source of electrons for the electron transport chain, and a molecule of GTP (which is readily converted to an ATP). NADH and FADH: the electron transport chain The electrons from NADH and FADH are transferred to oxygen (O), an energy-rich molecule, and hydrogen (protons) in several steps via the electron transport chain. NADH and FADH molecules are produced within the matrix via the citric acid cycle but are also produced in the cytoplasm by glycolysis. Reducing equivalents from the cytoplasm can be imported via the malate-aspartate shuttle system of antiporter proteins or feed into the electron transport chain using a glycerol phosphate shuttle. Protein complexes in the inner membrane (NADH dehydrogenase (ubiquinone), cytochrome c reductase, and cytochrome c oxidase) perform the transfer, and the incremental release of energy is used to pump protons (H) into the intermembrane space. This process is efficient, but a small percentage of electrons may prematurely reduce oxygen, forming reactive oxygen species such as superoxide. This can cause oxidative stress in the mitochondria and may contribute to the decline in mitochondrial function associated with aging. As the proton concentration increases in the intermembrane space, a strong electrochemical gradient is established across the inner membrane. The protons can return to the matrix through the ATP synthase complex, and their potential energy is used to synthesize ATP from ADP and inorganic phosphate (P). This process is called chemiosmosis, and was first described by Peter Mitchell, who was awarded the 1978 Nobel Prize in Chemistry for his work. Later, part of the 1997 Nobel Prize in Chemistry was awarded to Paul D. Boyer and John E. Walker for their clarification of the working mechanism of ATP synthase. Heat production Under certain conditions, protons can re-enter the mitochondrial matrix without contributing to ATP synthesis. This process is known as proton leak or mitochondrial uncoupling and is due to the facilitated diffusion of protons into the matrix. The process results in the unharnessed potential energy of the proton electrochemical gradient being released as heat. The process is mediated by a proton channel called thermogenin, or UCP1. Thermogenin is primarily found in brown adipose tissue, or brown fat, and is responsible for non-shivering thermogenesis. Brown adipose tissue is found in mammals, and is at its highest levels in early life and in hibernating animals. In humans, brown adipose tissue is present at birth and decreases with age. Storage of calcium ions The concentrations of free calcium in the cell can regulate an array of reactions and is important for signal transduction in the cell. Mitochondria can transiently store calcium, a contributing process for the cell's homeostasis of calcium. Their ability to rapidly take in calcium for later release makes them good "cytosolic buffers" for calcium. The endoplasmic reticulum (ER) is the most significant storage site of calcium, and there is a significant interplay between the mitochondrion and ER with regard to calcium. The calcium is taken up into the matrix by the mitochondrial calcium uniporter on the inner mitochondrial membrane. It is primarily driven by the mitochondrial membrane potential. Release of this calcium back into the cell's interior can occur via a sodium-calcium exchange protein or via "calcium-induced-calcium-release" pathways. This can initiate calcium spikes or calcium waves with large changes in the membrane potential. These can activate a series of second messenger system proteins that can coordinate processes such as neurotransmitter release in nerve cells and release of hormones in endocrine cells. Ca influx to the mitochondrial matrix has recently been implicated as a mechanism to regulate respiratory bioenergetics by allowing the electrochemical potential across the membrane to transiently "pulse" from ΔΨ-dominated to pH-dominated, facilitating a reduction of oxidative stress. In neurons, concomitant increases in cytosolic and mitochondrial calcium act to synchronize neuronal activity with mitochondrial energy metabolism. Mitochondrial matrix calcium levels can reach the tens of micromolar levels, which is necessary for the activation of isocitrate dehydrogenase, one of the key regulatory enzymes of the Krebs cycle. Cellular proliferation regulation The relationship between cellular proliferation and mitochondria has been investigated. Tumor cells require ample ATP to synthesize bioactive compounds such as lipids, proteins, and nucleotides for rapid proliferation. The majority of ATP in tumor cells is generated via the oxidative phosphorylation pathway (OxPhos). Interference with OxPhos cause cell cycle arrest suggesting that mitochondria play a role in cell proliferation. Mitochondrial ATP production is also vital for cell division and differentiation in infection in addition to basic functions in the cell including the regulation of cell volume, solute concentration, and cellular architecture. ATP levels differ at various stages of the cell cycle suggesting that there is a relationship between the abundance of ATP and the cell's ability to enter a new cell cycle. ATP's role in the basic functions of the cell make the cell cycle sensitive to changes in the availability of mitochondrial derived ATP. The variation in ATP levels at different stages of the cell cycle support the hypothesis that mitochondria play an important role in cell cycle regulation. Although the specific mechanisms between mitochondria and the cell cycle regulation is not well understood, studies have shown that low energy cell cycle checkpoints monitor the energy capability before committing to another round of cell division. Additional functions Mitochondria play a central role in many other metabolic tasks, such as: Signaling through mitochondrial reactive oxygen species Regulation of the membrane potential Apoptosis-programmed cell death Calcium signaling (including calcium-evoked apoptosis) Regulation of cellular metabolism Certain heme synthesis reactions (see also: porphyrin) Steroid synthesis. Hormonal signaling Mitochondria are sensitive and responsive to hormones, in part by the action of mitochondrial estrogen receptors (mtERs). These receptors have been found in various tissues and cell types, including brain and heart Immune signaling Neuronal mitochondria also contribute to cellular quality control by reporting neuronal status towards microglia through specialised somatic-junctions. Some mitochondrial functions are performed only in specific types of cells. For example, mitochondria in liver cells contain enzymes that allow them to detoxify ammonia, a waste product of protein metabolism. A mutation in the genes regulating any of these functions can result in mitochondrial diseases. Organization and distribution Mitochondria (or related structures) are found in all eukaryotes (except two—the Oxymonad Monocercomonoides and Henneguya salminicola). Although commonly depicted as bean-like structures they form a highly dynamic network in the majority of cells where they constantly undergo fission and fusion. The population of all the mitochondria of a given cell constitutes the chondriome. Mitochondria vary in number and location according to cell type. A single mitochondrion is often found in unicellular organisms, while human liver cells have about 1000–2000 mitochondria per cell, making up 1/5 of the cell volume. The mitochondrial content of otherwise similar cells can vary substantially in size and membrane potential, with differences arising from sources including uneven partitioning at cell division, leading to extrinsic differences in ATP levels and downstream cellular processes. The mitochondria can be found nestled between myofibrils of muscle or wrapped around the sperm flagellum. Often, they form a complex 3D branching network inside the cell with the cytoskeleton. The association with the cytoskeleton determines mitochondrial shape, which can affect the function as well: different structures of the mitochondrial network may afford the population a variety of physical, chemical, and signalling advantages or disadvantages. Mitochondria in cells are always distributed along microtubules and the distribution of these organelles is also correlated with the endoplasmic reticulum. Recent evidence suggests that vimentin, one of the components of the cytoskeleton, is also critical to the association with the cytoskeleton. Mitochondria-associated ER membrane (MAM) The mitochondria-associated ER membrane (MAM) is another structural element that is increasingly recognized for its critical role in cellular physiology and homeostasis. Once considered a technical snag in cell fractionation techniques, the alleged ER vesicle contaminants that invariably appeared in the mitochondrial fraction have been re-identified as membranous structures derived from the MAM—the interface between mitochondria and the ER. Physical coupling between these two organelles had previously been observed in electron micrographs and has more recently been probed with fluorescence microscopy. Such studies estimate that at the MAM, which may comprise up to 20% of the mitochondrial outer membrane, the ER and mitochondria are separated by a mere 10–25 nm and held together by protein tethering complexes. Purified MAM from subcellular fractionation is enriched in enzymes involved in phospholipid exchange, in addition to channels associated with Ca signaling. These hints of a prominent role for the MAM in the regulation of cellular lipid stores and signal transduction have been borne out, with significant implications for mitochondrial-associated cellular phenomena, as discussed below. Not only has the MAM provided insight into the mechanistic basis underlying such physiological processes as intrinsic apoptosis and the propagation of calcium signaling, but it also favors a more refined view of the mitochondria. Though often seen as static, isolated 'powerhouses' hijacked for cellular metabolism through an ancient endosymbiotic event, the evolution of the MAM underscores the extent to which mitochondria have been integrated into overall cellular physiology, with intimate physical and functional coupling to the endomembrane system. Phospholipid transfer The MAM is enriched in enzymes involved in lipid biosynthesis, such as phosphatidylserine synthase on the ER face and phosphatidylserine decarboxylase on the mitochondrial face. Because mitochondria are dynamic organelles constantly undergoing fission and fusion events, they require a constant and well-regulated supply of phospholipids for membrane integrity. But mitochondria are not only a destination for the phospholipids they finish synthesis of; rather, this organelle also plays a role in inter-organelle trafficking of the intermediates and products of phospholipid biosynthetic pathways, ceramide and cholesterol metabolism, and glycosphingolipid anabolism. Such trafficking capacity depends on the MAM, which has been shown to facilitate transfer of lipid intermediates between organelles. In contrast to the standard vesicular mechanism of lipid transfer, evidence indicates that the physical proximity of the ER and mitochondrial membranes at the MAM allows for lipid flipping between opposed bilayers. Despite this unusual and seemingly energetically unfavorable mechanism, such transport does not require ATP. Instead, in yeast, it has been shown to be dependent on a multiprotein tethering structure termed the ER-mitochondria encounter structure, or ERMES, although it remains unclear whether this structure directly mediates lipid transfer or is required to keep the membranes in sufficiently close proximity to lower the energy barrier for lipid flipping. The MAM may also be part of the secretory pathway, in addition to its role in intracellular lipid trafficking. In particular, the MAM appears to be an intermediate destination between the rough ER and the Golgi in the pathway that leads to very-low-density lipoprotein, or VLDL, assembly and secretion. The MAM thus serves as a critical metabolic and trafficking hub in lipid metabolism. Calcium signaling A critical role for the ER in calcium signaling was acknowledged before such a role for the mitochondria was widely accepted, in part because the low affinity of Ca channels localized to the outer mitochondrial membrane seemed to contradict this organelle's purported responsiveness to changes in intracellular Ca flux. But the presence of the MAM resolves this apparent contradiction: the close physical association between the two organelles results in Ca microdomains at contact points that facilitate efficient Ca transmission from the ER to the mitochondria. Transmission occurs in response to so-called "Ca puffs" generated by spontaneous clustering and activation of IP3R, a canonical ER membrane Ca channel. The fate of these puffs—in particular, whether they remain restricted to isolated locales or integrated into Ca waves for propagation throughout the cell—is determined in large part by MAM dynamics. Although reuptake of Ca by the ER (concomitant with its release) modulates the intensity of the puffs, thus insulating mitochondria to a certain degree from high Ca exposure, the MAM often serves as a firewall that essentially buffers Ca puffs by acting as a sink into which free ions released into the cytosol can be funneled. This Ca tunneling occurs through the low-affinity Ca receptor VDAC1, which recently has been shown to be physically tethered to the IP3R clusters on the ER membrane and enriched at the MAM. The ability of mitochondria to serve as a Ca sink is a result of the electrochemical gradient generated during oxidative phosphorylation, which makes tunneling of the cation an exergonic process. Normal, mild calcium influx from cytosol into the mitochondrial matrix causes transient depolarization that is corrected by pumping out protons. But transmission of Ca is not unidirectional; rather, it is a two-way street. The properties of the Ca pump SERCA and the channel IP3R present on the ER membrane facilitate feedback regulation coordinated by MAM function. In particular, the clearance of Ca by the MAM allows for spatio-temporal patterning of Ca signaling because Ca alters IP3R activity in a biphasic manner. SERCA is likewise affected by mitochondrial feedback: uptake of Ca by the MAM stimulates ATP production, thus providing energy that enables SERCA to reload the ER with Ca for continued Ca efflux at the MAM. Thus, the MAM is not a passive buffer for Ca puffs; rather it helps modulate further Ca signaling through feedback loops that affect ER dynamics. Regulating ER release of Ca at the MAM is especially critical because only a certain window of Ca uptake sustains the mitochondria, and consequently the cell, at homeostasis. Sufficient intraorganelle Ca signaling is required to stimulate metabolism by activating dehydrogenase enzymes critical to flux through the citric acid cycle. However, once Ca signaling in the mitochondria passes a certain threshold, it stimulates the intrinsic pathway of apoptosis in part by collapsing the mitochondrial membrane potential required for metabolism. Studies examining the role of pro- and anti-apoptotic factors support this model; for example, the anti-apoptotic factor Bcl-2 has been shown to interact with IP3Rs to reduce Ca filling of the ER, leading to reduced efflux at the MAM and preventing collapse of the mitochondrial membrane potential post-apoptotic stimuli. Given the need for such fine regulation of Ca signaling, it is perhaps unsurprising that dysregulated mitochondrial Ca has been implicated in several neurodegenerative diseases, while the catalogue of tumor suppressors includes a few that are enriched at the MAM. Molecular basis for tethering Recent advances in the identification of the tethers between the mitochondrial and ER membranes suggest that the scaffolding function of the molecular elements involved is secondary to other, non-structural functions. In yeast, ERMES, a multiprotein complex of interacting ER- and mitochondrial-resident membrane proteins, is required for lipid transfer at the MAM and exemplifies this principle. One of its components, for example, is also a constituent of the protein complex required for insertion of transmembrane beta-barrel proteins into the lipid bilayer. However, a homologue of the ERMES complex has not yet been identified in mammalian cells. Other proteins implicated in scaffolding likewise have functions independent of structural tethering at the MAM; for example, ER-resident and mitochondrial-resident mitofusins form heterocomplexes that regulate the number of inter-organelle contact sites, although mitofusins were first identified for their role in fission and fusion events between individual mitochondria. Glucose-related protein 75 (grp75) is another dual-function protein. In addition to the matrix pool of grp75, a portion serves as a chaperone that physically links the mitochondrial and ER Ca channels VDAC and IP3R for efficient Ca transmission at the MAM. Another potential tether is Sigma-1R, a non-opioid receptor whose stabilization of ER-resident IP3R may preserve communication at the MAM during the metabolic stress response. Perspective The MAM is a critical signaling, metabolic, and trafficking hub in the cell that allows for the integration of ER and mitochondrial physiology. Coupling between these organelles is not simply structural but functional as well and critical for overall cellular physiology and homeostasis. The MAM thus offers a perspective on mitochondria that diverges from the traditional view of this organelle as a static, isolated unit appropriated for its metabolic capacity by the cell. Instead, this mitochondrial-ER interface emphasizes the integration of the mitochondria, the product of an endosymbiotic event, into diverse cellular processes. Recently it has also been shown, that mitochondria and MAM-s in neurons are anchored to specialised intercellular communication sites (so called somatic-junctions). Microglial processes monitor and protect neuronal functions at these sites, and MAM-s are supposed to have an important role in this type of cellular quality-control. Origin and evolution There are two hypotheses about the origin of mitochondria: endosymbiotic and autogenous. The endosymbiotic hypothesis suggests that mitochondria were originally prokaryotic cells, capable of implementing oxidative mechanisms that were not possible for eukaryotic cells; they became endosymbionts living inside the eukaryote. In the autogenous hypothesis, mitochondria were born by splitting off a portion of DNA from the nucleus of the eukaryotic cell at the time of divergence with the prokaryotes; this DNA portion would have been enclosed by membranes, which could not be crossed by proteins. Since mitochondria have many features in common with bacteria, the endosymbiotic hypothesis is more widely accepted. A mitochondrion contains DNA, which is organized as several copies of a single, usually circular chromosome. This mitochondrial chromosome contains genes for redox proteins, such as those of the respiratory chain. The CoRR hypothesis proposes that this co-location is required for redox regulation. The mitochondrial genome codes for some RNAs of ribosomes, and the 22 tRNAs necessary for the translation of mRNAs into protein. The circular structure is also found in prokaryotes. The proto-mitochondrion was probably closely related to Rickettsia. However, the exact relationship of the ancestor of mitochondria to the alphaproteobacteria and whether the mitochondrion was formed at the same time or after the nucleus, remains controversial. For example, it has been suggested that the SAR11 clade of bacteria shares a relatively recent common ancestor with the mitochondria, while phylogenomic analyses indicate that mitochondria evolved from a proteobacteria lineage that is closely related to or a member of alphaproteobacteria. The ribosomes coded for by the mitochondrial DNA are similar to those from bacteria in size and structure. They closely resemble the bacterial 70S ribosome and not the 80S cytoplasmic ribosomes, which are coded for by nuclear DNA. The endosymbiotic relationship of mitochondria with their host cells was popularized by Lynn Margulis. The endosymbiotic hypothesis suggests that mitochondria descended from aerobic bacteria that somehow survived endocytosis by another cell, and became incorporated into the cytoplasm. The ability of these bacteria to conduct respiration in host cells that had relied on glycolysis and fermentation would have provided a considerable evolutionary advantage. This symbiotic relationship probably developed 1.7 to 2 billion years ago. A few groups of unicellular eukaryotes have only vestigial mitochondria or derived structures: the microsporidians, metamonads, and archamoebae. These groups appear as the most primitive eukaryotes on phylogenetic trees constructed using rRNA information, which once suggested that they appeared before the origin of mitochondria. However, this is now known to be an artifact of long-branch attraction—they are derived groups and retain genes or organelles derived from mitochondria (e. g., mitosomes and hydrogenosomes). Hydrogenosomes, mitosomes, and related organelles as found in some loricifera (e. g. Spinoloricus) and myxozoa (e. g. Henneguya zschokkei) are together classified as MROs, mitochondrion-related organelles. Monocercomonoides appear to have lost their mitochondria completely and at least some of the mitochondrial functions seem to be carried out by cytoplasmic proteins now. Genome Mitochondria contain their own genome. The human mitochondrial genome is a circular double-stranded DNA molecule of about 16 kilobases. It encodes 37 genes: 13 for subunits of respiratory complexes I, III, IV and V, 22 for mitochondrial tRNA (for the 20 standard amino acids, plus an extra gene for leucine and serine), and 2 for rRNA (12S and 16S rRNA). One mitochondrion can contain two to ten copies of its DNA. One of the two mitochondrial DNA (mtDNA) strands has a disproportionately higher ratio of the heavier nucleotides adenine and guanine, and this is termed the heavy strand (or H strand), whereas the other strand is termed the light strand (or L strand). The weight difference allows the two strands to be separated by centrifugation. mtDNA has one long non-coding stretch known as the non-coding region (NCR), which contains the heavy strand promoter (HSP) and light strand promoter (LSP) for RNA transcription, the origin of replication for the H strand (OriH) localized on the L strand, three conserved sequence boxes (CSBs 1–3), and a termination-associated sequence (TAS). The origin of replication for the L strand (OriL) is localized on the H strand 11,000 bp downstream of OriH, located within a cluster of genes coding for tRNA. As in prokaryotes, there is a very high proportion of coding DNA and an absence of repeats. Mitochondrial genes are transcribed as multigenic transcripts, which are cleaved and polyadenylated to yield mature mRNAs. Most proteins necessary for mitochondrial function are encoded by genes in the cell nucleus and the corresponding proteins are imported into the mitochondrion. The exact number of genes encoded by the nucleus and the mitochondrial genome differs between species. Most mitochondrial genomes are circular. In general, mitochondrial DNA lacks introns, as is the case in the human mitochondrial genome; however, introns have been observed in some eukaryotic mitochondrial DNA, such as that of yeast and protists, including Dictyostelium discoideum. Between protein-coding regions, tRNAs are present. Mitochondrial tRNA genes have different sequences from the nuclear tRNAs, but lookalikes of mitochondrial tRNAs have been found in the nuclear chromosomes with high sequence similarity. In animals, the mitochondrial genome is typically a single circular chromosome that is approximately 16 kb long and has 37 genes. The genes, while highly conserved, may vary in location. Curiously, this pattern is not found in the human body louse (Pediculus humanus). Instead, this mitochondrial genome is arranged in 18 minicircular chromosomes, each of which is 3–4 kb long and has one to three genes. This pattern is also found in other sucking lice, but not in chewing lice. Recombination has been shown to occur between the minichromosomes. Alternative genetic code While slight variations on the standard genetic code had been predicted earlier, none was discovered until 1979, when researchers studying human mitochondrial genes determined that they used an alternative code. Nonetheless, the mitochondria of many other eukaryotes, including most plants, use the standard code. Many slight variants have been discovered since, including various alternative mitochondrial codes. Further, the AUA, AUC, and AUU codons are all allowable start codons. Some of these differences should be regarded as pseudo-changes in the genetic code due to the phenomenon of RNA editing, which is common in mitochondria. In higher plants, it was thought that CGG encoded for tryptophan and not arginine; however, the codon in the processed RNA was discovered to be the UGG codon, consistent with the standard genetic code for tryptophan. Of note, the arthropod mitochondrial genetic code has undergone parallel evolution within a phylum, with some organisms uniquely translating AGG to lysine. Replication and inheritance Mitochondria divide by mitochondrial fission, a form of binary fission that is also done by bacteria although the process is tightly regulated by the host eukaryotic cell and involves communication between and contact with several other organelles. The regulation of this division differs between eukaryotes. In many single-celled eukaryotes, their growth and division are linked to the cell cycle. For example, a single mitochondrion may divide synchronously with the nucleus. This division and segregation process must be tightly controlled so that each daughter cell receives at least one mitochondrion. In other eukaryotes (in mammals for example), mitochondria may replicate their DNA and divide mainly in response to the energy needs of the cell, rather than in phase with the cell cycle. When the energy needs of a cell are high, mitochondria grow and divide. When energy use is low, mitochondria are destroyed or become inactive. In such examples mitochondria are apparently randomly distributed to the daughter cells during the division of the cytoplasm. Mitochondrial dynamics, the balance between mitochondrial fusion and fission, is an important factor in pathologies associated with several disease conditions. The hypothesis of mitochondrial binary fission has relied on the visualization by fluorescence microscopy and conventional transmission electron microscopy (TEM). The resolution of fluorescence microscopy (~200 nm) is insufficient to distinguish structural details, such as double mitochondrial membrane in mitochondrial division or even to distinguish individual mitochondria when several are close together. Conventional TEM has also some technical limitations in verifying mitochondrial division. Cryo-electron tomography was recently used to visualize mitochondrial division in frozen hydrated intact cells. It revealed that mitochondria divide by budding. An individual's mitochondrial genes are inherited only from the mother, with rare exceptions. In humans, when an egg cell is fertilized by a sperm, the mitochondria, and therefore the mitochondrial DNA, usually come from the egg only. The sperm's mitochondria enter the egg, but do not contribute genetic information to the embryo. Instead, paternal mitochondria are marked with ubiquitin to select them for later destruction inside the embryo. The egg cell contains relatively few mitochondria, but these mitochondria divide to populate the cells of the adult organism. This mode is seen in most organisms, including the majority of animals. However, mitochondria in some species can sometimes be inherited paternally. This is the norm among certain coniferous plants, although not in pine trees and yews. For Mytilids, paternal inheritance only occurs within males of the species. It has been suggested that it occurs at a very low level in humans. Uniparental inheritance leads to little opportunity for genetic recombination between different lineages of mitochondria, although a single mitochondrion can contain 2–10 copies of its DNA. What recombination does take place maintains genetic integrity rather than maintaining diversity. However, there are studies showing evidence of recombination in mitochondrial DNA. It is clear that the enzymes necessary for recombination are present in mammalian cells. Further, evidence suggests that animal mitochondria can undergo recombination. The data are more controversial in humans, although indirect evidence of recombination exists. Entities undergoing uniparental inheritance and with little to no recombination may be expected to be subject to Muller's ratchet, the accumulation of deleterious mutations until functionality is lost. Animal populations of mitochondria avoid this buildup through a developmental process known as the mtDNA bottleneck. The bottleneck exploits stochastic processes in the cell to increase the cell-to-cell variability in mutant load as an organism develops: a single egg cell with some proportion of mutant mtDNA thus produces an embryo where different cells have different mutant loads. Cell-level selection may then act to remove those cells with more mutant mtDNA, leading to a stabilization or reduction in mutant load between generations. The mechanism underlying the bottleneck is debated, with a recent mathematical and experimental metastudy providing evidence for a combination of random partitioning of mtDNAs at cell divisions and random turnover of mtDNA molecules within the cell. DNA repair Mitochondria can repair oxidative DNA damage by mechanisms analogous to those occurring in the cell nucleus. The proteins employed in mtDNA repair are encoded by nuclear genes, and are translocated to the mitochondria. The DNA repair pathways in mammalian mitochondria include base excision repair, double-strand break repair, direct reversal and mismatch repair. Alternatively, DNA damage may be bypassed, rather than repaired, by translesion synthesis. Of the several DNA repair process in mitochondria, the base excision repair pathway has been most comprehensively studied. Base excision repair is carried out by a sequence of enzyme-catalyzed steps that include recognition and excision of a damaged DNA base, removal of the resulting abasic site, end processing, gap filling and ligation. A common damage in mtDNA that is repaired by base excision repair is 8-oxoguanine produced by oxidation of guanine. Double-strand breaks can be repaired by homologous recombinational repair in both mammalian mtDNA and plant mtDNA. Double-strand breaks in mtDNA can also be repaired by microhomology-mediated end joining. Although there is evidence for the repair processes of direct reversal and mismatch repair in mtDNA, these processes are not well characterized. Lack of mitochondrial DNA Some organisms have lost mitochondrial DNA altogether. In these cases, genes encoded by the mitochondrial DNA have been lost or transferred to the nucleus. Cryptosporidium have mitochondria that lack any DNA, presumably because all their genes have been lost or transferred. In Cryptosporidium, the mitochondria have an altered ATP generation system that renders the parasite resistant to many classical mitochondrial inhibitors such as cyanide, azide, and atovaquone. Mitochondria that lack their own DNA have been found in a marine parasitic dinoflagellate from the genus Amoebophyra. This microorganism, A. cerati, has functional mitochondria that lack a genome. In related species, the mitochondrial genome still has three genes, but in A. cerati only a single mitochondrial gene — the cytochrome c oxidase I gene (cox1) — is found, and it has migrated to the genome of the nucleus. Population genetic studies The near-absence of genetic recombination in mitochondrial DNA makes it a useful source of information for studying population genetics and evolutionary biology. Because all the mitochondrial DNA is inherited as a single unit, or haplotype, the relationships between mitochondrial DNA from different individuals can be represented as a gene tree. Patterns in these gene trees can be used to infer the evolutionary history of populations. The classic example of this is in human evolutionary genetics, where the molecular clock can be used to provide a recent date for mitochondrial Eve. This is often interpreted as strong support for a recent modern human expansion out of Africa. Another human example is the sequencing of mitochondrial DNA from Neanderthal bones. The relatively large evolutionary distance between the mitochondrial DNA sequences of Neanderthals and living humans has been interpreted as evidence for the lack of interbreeding between Neanderthals and modern humans. However, mitochondrial DNA reflects only the history of the females in a population. This can be partially overcome by the use of paternal genetic sequences, such as the non-recombining region of the Y-chromosome. Recent measurements of the molecular clock for mitochondrial DNA reported a value of 1 mutation every 7884 years dating back to the most recent common ancestor of humans and apes, which is consistent with estimates of mutation rates of autosomal DNA (10 per base per generation). Dysfunction and disease Mitochondrial diseases Damage and subsequent dysfunction in mitochondria is an important factor in a range of human diseases due to their influence in cell metabolism. Mitochondrial disorders often present as neurological disorders, including autism. They can also manifest as myopathy, diabetes, multiple endocrinopathy, and a variety of other systemic disorders. Diseases caused by mutation in the mtDNA include Kearns–Sayre syndrome, MELAS syndrome and Leber's hereditary optic neuropathy. In the vast majority of cases, these diseases are transmitted by a female to her children, as the zygote derives its mitochondria and hence its mtDNA from the ovum. Diseases such as Kearns-Sayre syndrome, Pearson syndrome, and progressive external ophthalmoplegia are thought to be due to large-scale mtDNA rearrangements, whereas other diseases such as MELAS syndrome, Leber's hereditary optic neuropathy, MERRF syndrome, and others are due to point mutations in mtDNA. It has also been reported that drug tolerant cancer cells have an increased number and size of mitochondria which suggested an increase in mitochondrial biogenesis. Interestingly, a recent study in Nature Nanotechnology has reported that cancer cells can hijack the mitochondria from immune cells via physical tunneling nanotubes. In other diseases, defects in nuclear genes lead to dysfunction of mitochondrial proteins. This is the case in Friedreich's ataxia, hereditary spastic paraplegia, and Wilson's disease. These diseases are inherited in a dominance relationship, as applies to most other genetic diseases. A variety of disorders can be caused by nuclear mutations of oxidative phosphorylation enzymes, such as coenzyme Q10 deficiency and Barth syndrome. Environmental influences may interact with hereditary predispositions and cause mitochondrial disease. For example, there may be a link between pesticide exposure and the later onset of Parkinson's disease. Other pathologies with etiology involving mitochondrial dysfunction include schizophrenia, bipolar disorder, dementia, Alzheimer's disease, Parkinson's disease, epilepsy, stroke, cardiovascular disease, chronic fatigue syndrome, retinitis pigmentosa, and diabetes mellitus. Mitochondria-mediated oxidative stress plays a role in cardiomyopathy in type 2 diabetics. Increased fatty acid delivery to the heart increases fatty acid uptake by cardiomyocytes, resulting in increased fatty acid oxidation in these cells. This process increases the reducing equivalents available to the electron transport chain of the mitochondria, ultimately increasing reactive oxygen species (ROS) production. ROS increases uncoupling proteins (UCPs) and potentiate proton leakage through the adenine nucleotide translocator (ANT), the combination of which uncouples the mitochondria. Uncoupling then increases oxygen consumption by the mitochondria, compounding the increase in fatty acid oxidation. This creates a vicious cycle of uncoupling; furthermore, even though oxygen consumption increases, ATP synthesis does not increase proportionally because the mitochondria are uncoupled. Less ATP availability ultimately results in an energy deficit presenting as reduced cardiac efficiency and contractile dysfunction. To compound the problem, impaired sarcoplasmic reticulum calcium release and reduced mitochondrial reuptake limits peak cytosolic levels of the important signaling ion during muscle contraction. Decreased intra-mitochondrial calcium concentration increases dehydrogenase activation and ATP synthesis. So in addition to lower ATP synthesis due to fatty acid oxidation, ATP synthesis is impaired by poor calcium signaling as well, causing cardiac problems for diabetics. Relationships to aging There may be some leakage of the electrons transferred in the respiratory chain to form reactive oxygen species. This was thought to result in significant oxidative stress in the mitochondria with high mutation rates of mitochondrial DNA. Hypothesized links between aging and oxidative stress are not new and were proposed in 1956, which was later refined into the mitochondrial free radical theory of aging. A vicious cycle was thought to occur, as oxidative stress leads to mitochondrial DNA mutations, which can lead to enzymatic abnormalities and further oxidative stress. A number of changes can occur to mitochondria during the aging process. Tissues from elderly humans show a decrease in enzymatic activity of the proteins of the respiratory chain. However, mutated mtDNA can only be found in about 0.2% of very old cells. Large deletions in the mitochondrial genome have been hypothesized to lead to high levels of oxidative stress and neuronal death in Parkinson's disease. Mitochondrial dysfunction has also been shown to occur in amyotrophic lateral sclerosis. Since mitochondria cover a pivotal role in the ovarian function, by providing ATP necessary for the development from germinal vesicle to mature oocyte, a decreased mitochondria function can lead to inflammation, resulting in premature ovarian failure and accelerated ovarian aging. The resulting dysfunction is then reflected in quantitative (such as mtDNA copy number and mtDNA deletions), qualitative (such as mutations and strand breaks) and oxidative damage (such as dysfunctional mitochondria due to ROS), which are not only relevant in ovarian aging, but perturb oocyte-cumulus crosstalk in the ovary, are linked to genetic disorders (such as Fragile X) and can interfere with embryo selection. History The first observations of intracellular structures that probably represented mitochondria were published in the 1840s. Richard Altmann, in 1890, established them as cell organelles and called them "bioblasts". In 1898, Carl Benda coined the term "mitochondria" from the Greek , , "thread", and , , "granule". Leonor Michaelis discovered that Janus green can be used as a supravital stain for mitochondria in 1900. In 1904, Friedrich Meves, made the first recorded observation of mitochondria in plants in cells of the white waterlily, Nymphaea alba and in 1908, along with Claudius Regaud, suggested that they contain proteins and lipids. Benjamin F. Kingsbury, in 1912, first related them with cell respiration, but almost exclusively based on morphological observations. In 1913, particles from extracts of guinea-pig liver were linked to respiration by Otto Heinrich Warburg, which he called "grana". Warburg and Heinrich Otto Wieland, who had also postulated a similar particle mechanism, disagreed on the chemical nature of the respiration. It was not until 1925, when David Keilin discovered cytochromes, that the respiratory chain was described. In 1939, experiments using minced muscle cells demonstrated that cellular respiration using one oxygen molecule can form four adenosine triphosphate (ATP) molecules, and in 1941, the concept of the phosphate bonds of ATP being a form of energy in cellular metabolism was developed by Fritz Albert Lipmann. In the following years, the mechanism behind cellular respiration was further elaborated, although its link to the mitochondria was not known. The introduction of tissue fractionation by Albert Claude allowed mitochondria to be isolated from other cell fractions and biochemical analysis to be conducted on them alone. In 1946, he concluded that cytochrome oxidase and other enzymes responsible for the respiratory chain were isolated to the mitochondria. Eugene Kennedy and Albert Lehninger discovered in 1948 that mitochondria are the site of oxidative phosphorylation in eukaryotes. Over time, the fractionation method was further developed, improving the quality of the mitochondria isolated, and other elements of cell respiration were determined to occur in the mitochondria. The first high-resolution electron micrographs appeared in 1952, replacing the Janus Green stains as the preferred way to visualize mitochondria. This led to a more detailed analysis of the structure of the mitochondria, including confirmation that they were surrounded by a membrane. It also showed a second membrane inside the mitochondria that folded up in ridges dividing up the inner chamber and that the size and shape of the mitochondria varied from cell to cell. The popular term "powerhouse of the cell" was coined by Philip Siekevitz in 1957. In 1967, it was discovered that mitochondria contained ribosomes. In 1968, methods were developed for mapping the mitochondrial genes, with the genetic and physical map of yeast mitochondrial DNA completed in 1976. See also Anti-mitochondrial antibodies Mitochondrial metabolic rates Mitochondrial permeability transition pore Mitophagy Nebenkern Oncocyte Oncocytoma Paternal mtDNA transmission Plastid Submitochondrial particle References General External links Mitodb.com – The mitochondrial disease database. Mitochondria Atlas at University of Mainz Mitochondria Research Portal at mitochondrial.net Mitochondria: Architecture dictates function at cytochemistry.net Mitochondria links at University of Alabama MIP Mitochondrial Physiology Society 3D structures of proteins from inner mitochondrial membrane at University of Michigan 3D structures of proteins associated with outer mitochondrial membrane at University of Michigan Mitochondrial Protein Partnership at University of Wisconsin MitoMiner – A mitochondrial proteomics database at MRC Mitochondrial Biology Unit Mitochondrion – Cell Centered Database Mitochondrion Reconstructed by Electron Tomography at San Diego State University Video Clip of Rat-liver Mitochondrion from Cryo-electron Tomography Mitochondria Cellular respiration Endosymbiotic events

19589

https://en.wikipedia.org/wiki/Minimax

Minimax

Minimax (sometimes MinMax, MM or saddle point) is a decision rule used in artificial intelligence, decision theory, game theory, statistics, and philosophy for minimizing the possible loss for a worst case (maximum loss) scenario. When dealing with gains, it is referred to as "maximin"—to maximize the minimum gain. Originally formulated for n-player zero-sum game theory, covering both the cases where players take alternate moves and those where they make simultaneous moves, it has also been extended to more complex games and to general decision-making in the presence of uncertainty. Game theory In general games The maximin value is the highest value that the player can be sure to get without knowing the actions of the other players; equivalently, it is the lowest value the other players can force the player to receive when they know the player's action. Its formal definition is: Where: is the index of the player of interest. denotes all other players except player . is the action taken by player . denotes the actions taken by all other players. is the value function of player . Calculating the maximin value of a player is done in a worst-case approach: for each possible action of the player, we check all possible actions of the other players and determine the worst possible combination of actions—the one that gives player the smallest value. Then, we determine which action player can take in order to make sure that this smallest value is the highest possible. For example, consider the following game for two players, where the first player ("row player") may choose any of three moves, labelled , , or , and the second player ("column" player) may choose either of two moves, or . The result of the combination of both moves is expressed in a payoff table: (where the first number in each cell is the pay-out of the row player and the second number is the pay-out of the column player). For the sake of example, we consider only pure strategies. Check each player in turn: The row player can play , which guarantees them a payoff of at least (playing is risky since it can lead to payoff , and playing can result in a payoff of ). Hence: . The column player can play and secure a payoff of at least (playing puts them in the risk of getting ). Hence: . If both players play their respective maximin strategies , the payoff vector is . The minimax value of a player is the smallest value that the other players can force the player to receive, without knowing the player's actions; equivalently, it is the largest value the player can be sure to get when they know the actions of the other players. Its formal definition is: The definition is very similar to that of the maximin value—only the order of the maximum and minimum operators is inverse. In the above example: The row player can get a maximum value of (if the other player plays ) or (if the other player plays ), so: . The column player can get a maximum value of (if the other player plays ), (if ) or (if ). Hence: . For every player , the maximin is at most the minimax: Intuitively, in maximin the maximization comes after the minimization, so player tries to maximize their value before knowing what the others will do; in minimax the maximization comes before the minimization, so player is in a much better position—they maximize their value knowing what the others did. Another way to understand the notation is by reading from right to left: when we write the initial set of outcomes depends on both and . We first marginalize away from , by maximizing over (for every possible value of ) to yield a set of marginal outcomes , which depends only on . We then minimize over over these outcomes. (Conversely for maximin.) Although it is always the case that and , the payoff vector resulting from both players playing their minimax strategies, in the case of or in the case of , cannot similarly be ranked against the payoff vector resulting from both players playing their maximin strategy. In zero-sum games In two-player zero-sum games, the minimax solution is the same as the Nash equilibrium. In the context of zero-sum games, the minimax theorem is equivalent to: For every two-person, zero-sum game with finitely many strategies, there exists a value V and a mixed strategy for each player, such that (a) Given player 2's strategy, the best payoff possible for player 1 is V, and (b) Given player 1's strategy, the best payoff possible for player 2 is −V. Equivalently, Player 1's strategy guarantees them a payoff of V regardless of Player 2's strategy, and similarly Player 2 can guarantee themselves a payoff of −V. The name minimax arises because each player minimizes the maximum payoff possible for the other—since the game is zero-sum, they also minimize their own maximum loss (i.e. maximize their minimum payoff). See also example of a game without a value. Example The following example of a zero-sum game, where A and B make simultaneous moves, illustrates maximin solutions. Suppose each player has three choices and consider the payoff matrix for A displayed on the table ("Payoff matrix for player A"). Assume the payoff matrix for B is the same matrix with the signs reversed (i.e. if the choices are A1 and B1 then B pays 3 to A). Then, the maximin choice for A is A2 since the worst possible result is then having to pay 1, while the simple maximin choice for B is B2 since the worst possible result is then no payment. However, this solution is not stable, since if B believes A will choose A2 then B will choose B1 to gain 1; then if A believes B will choose B1 then A will choose A1 to gain 3; and then B will choose B2; and eventually both players will realize the difficulty of making a choice. So a more stable strategy is needed. Some choices are dominated by others and can be eliminated: A will not choose A3 since either A1 or A2 will produce a better result, no matter what B chooses; B will not choose B3 since some mixtures of B1 and B2 will produce a better result, no matter what A chooses. A can avoid having to make an expected payment of more than 1/3 by choosing A1 with probability 1/6 and A2 with probability 5/6: The expected payoff for A would be 3 × (1/6) − 1 × (5/6) = −1/3 in case B chose B1 and −2 × (1/6) + 0 × (5/6) = −1/3 in case B chose B2. Similarly, B can ensure an expected gain of at least 1/3, no matter what A chooses, by using a randomized strategy of choosing B1 with probability 1/3 and B2 with probability 2/3. These mixed minimax strategies are now stable and cannot be improved. Maximin Frequently, in game theory, maximin is distinct from minimax. Minimax is used in zero-sum games to denote minimizing the opponent's maximum payoff. In a zero-sum game, this is identical to minimizing one's own maximum loss, and to maximizing one's own minimum gain. "Maximin" is a term commonly used for non-zero-sum games to describe the strategy which maximizes one's own minimum payoff. In non-zero-sum games, this is not generally the same as minimizing the opponent's maximum gain, nor the same as the Nash equilibrium strategy. In repeated games The minimax values are very important in the theory of repeated games. One of the central theorems in this theory, the folk theorem, relies on the minimax values. Combinatorial game theory In combinatorial game theory, there is a minimax algorithm for game solutions. A simple version of the minimax algorithm, stated below, deals with games such as tic-tac-toe, where each player can win, lose, or draw. If player A can win in one move, their best move is that winning move. If player B knows that one move will lead to the situation where player A can win in one move, while another move will lead to the situation where player A can, at best, draw, then player B's best move is the one leading to a draw. Late in the game, it's easy to see what the "best" move is. The Minimax algorithm helps find the best move, by working backwards from the end of the game. At each step it assumes that player A is trying to maximize the chances of A winning, while on the next turn player B is trying to minimize the chances of A winning (i.e., to maximize B's own chances of winning). Minimax algorithm with alternate moves A minimax algorithm is a recursive algorithm for choosing the next move in an n-player game, usually a two-player game. A value is associated with each position or state of the game. This value is computed by means of a position evaluation function and it indicates how good it would be for a player to reach that position. The player then makes the move that maximizes the minimum value of the position resulting from the opponent's possible following moves. If it is A's turn to move, A gives a value to each of their legal moves. A possible allocation method consists in assigning a certain win for A as +1 and for B as −1. This leads to combinatorial game theory as developed by John Horton Conway. An alternative is using a rule that if the result of a move is an immediate win for A it is assigned positive infinity and if it is an immediate win for B, negative infinity. The value to A of any other move is the maximum of the values resulting from each of B's possible replies. For this reason, A is called the maximizing player and B is called the minimizing player, hence the name minimax algorithm. The above algorithm will assign a value of positive or negative infinity to any position since the value of every position will be the value of some final winning or losing position. Often this is generally only possible at the very end of complicated games such as chess or go, since it is not computationally feasible to look ahead as far as the completion of the game, except towards the end, and instead, positions are given finite values as estimates of the degree of belief that they will lead to a win for one player or another. This can be extended if we can supply a heuristic evaluation function which gives values to non-final game states without considering all possible following complete sequences. We can then limit the minimax algorithm to look only at a certain number of moves ahead. This number is called the "look-ahead", measured in "plies". For example, the chess computer Deep Blue (the first one to beat a reigning world champion, Garry Kasparov at that time) looked ahead at least 12 plies, then applied a heuristic evaluation function. The algorithm can be thought of as exploring the nodes of a game tree. The effective branching factor of the tree is the average number of children of each node (i.e., the average number of legal moves in a position). The number of nodes to be explored usually increases exponentially with the number of plies (it is less than exponential if evaluating forced moves or repeated positions). The number of nodes to be explored for the analysis of a game is therefore approximately the branching factor raised to the power of the number of plies. It is therefore impractical to completely analyze games such as chess using the minimax algorithm. The performance of the naïve minimax algorithm may be improved dramatically, without affecting the result, by the use of alpha–beta pruning. Other heuristic pruning methods can also be used, but not all of them are guaranteed to give the same result as the un-pruned search. A naïve minimax algorithm may be trivially modified to additionally return an entire Principal Variation along with a minimax score. Pseudocode The pseudocode for the depth limited minimax algorithm is given below. function minimax(node, depth, maximizingPlayer) is if depth = 0 or node is a terminal node then return the heuristic value of node if maximizingPlayer then value := −∞ for each child of node do value := max(value, minimax(child, depth − 1, FALSE)) return value else (* minimizing player *) value := +∞ for each child of node do value := min(value, minimax(child, depth − 1, TRUE)) return value (* Initial call *) minimax(origin, depth, TRUE) The minimax function returns a heuristic value for leaf nodes (terminal nodes and nodes at the maximum search depth). Non-leaf nodes inherit their value from a descendant leaf node. The heuristic value is a score measuring the favorability of the node for the maximizing player. Hence nodes resulting in a favorable outcome, such as a win, for the maximizing player have higher scores than nodes more favorable for the minimizing player. The heuristic value for terminal (game ending) leaf nodes are scores corresponding to win, loss, or draw, for the maximizing player. For non terminal leaf nodes at the maximum search depth, an evaluation function estimates a heuristic value for the node. The quality of this estimate and the search depth determine the quality and accuracy of the final minimax result. Minimax treats the two players (the maximizing player and the minimizing player) separately in its code. Based on the observation that , minimax may often be simplified into the negamax algorithm. Example Suppose the game being played only has a maximum of two possible moves per player each turn. The algorithm generates the tree on the right, where the circles represent the moves of the player running the algorithm (maximizing player), and squares represent the moves of the opponent (minimizing player). Because of the limitation of computation resources, as explained above, the tree is limited to a look-ahead of 4 moves. The algorithm evaluates each leaf node using a heuristic evaluation function, obtaining the values shown. The moves where the maximizing player wins are assigned with positive infinity, while the moves that lead to a win of the minimizing player are assigned with negative infinity. At level 3, the algorithm will choose, for each node, the smallest of the child node values, and assign it to that same node (e.g. the node on the left will choose the minimum between "10" and "+∞", therefore assigning the value "10" to itself). The next step, in level 2, consists of choosing for each node the largest of the child node values. Once again, the values are assigned to each parent node. The algorithm continues evaluating the maximum and minimum values of the child nodes alternately until it reaches the root node, where it chooses the move with the largest value (represented in the figure with a blue arrow). This is the move that the player should make in order to minimize the maximum possible loss. Minimax for individual decisions Minimax in the face of uncertainty Minimax theory has been extended to decisions where there is no other player, but where the consequences of decisions depend on unknown facts. For example, deciding to prospect for minerals entails a cost which will be wasted if the minerals are not present, but will bring major rewards if they are. One approach is to treat this as a game against nature (see move by nature), and using a similar mindset as Murphy's law or resistentialism, take an approach which minimizes the maximum expected loss, using the same techniques as in the two-person zero-sum games. In addition, expectiminimax trees have been developed, for two-player games in which chance (for example, dice) is a factor. Minimax criterion in statistical decision theory In classical statistical decision theory, we have an estimator that is used to estimate a parameter . We also assume a risk function , usually specified as the integral of a loss function. In this framework, is called minimax if it satisfies An alternative criterion in the decision theoretic framework is the Bayes estimator in the presence of a prior distribution . An estimator is Bayes if it minimizes the average risk Non-probabilistic decision theory A key feature of minimax decision making is being non-probabilistic: in contrast to decisions using expected value or expected utility, it makes no assumptions about the probabilities of various outcomes, just scenario analysis of what the possible outcomes are. It is thus robust to changes in the assumptions, as these other decision techniques are not. Various extensions of this non-probabilistic approach exist, notably minimax regret and Info-gap decision theory. Further, minimax only requires ordinal measurement (that outcomes be compared and ranked), not interval measurements (that outcomes include "how much better or worse"), and returns ordinal data, using only the modeled outcomes: the conclusion of a minimax analysis is: "this strategy is minimax, as the worst case is (outcome), which is less bad than any other strategy". Compare to expected value analysis, whose conclusion is of the form: "this strategy yields E(X)=n." Minimax thus can be used on ordinal data, and can be more transparent. Maximin in philosophy In philosophy, the term "maximin" is often used in the context of John Rawls's A Theory of Justice, where he refers to it (Rawls 1971, p. 152) in the context of The Difference Principle. Rawls defined this principle as the rule which states that social and economic inequalities should be arranged so that "they are to be of the greatest benefit to the least-advantaged members of society". See also Alpha–beta pruning Expectiminimax Negamax Sion's minimax theorem Minimax Condorcet Computer chess Horizon effect Monte Carlo tree search Minimax regret Negascout Tit for Tat Transposition table Wald's maximin model Notes External links A visualization applet Maximin principle at Dictionary of Philosophical Terms and Names Play a betting-and-bluffing game against a mixed minimax strategy Minimax at Dictionary of Algorithms and Data Structures Minimax (with or without alpha-beta pruning) algorithm visualization — game tree solving (Java Applet), for balance or off-balance trees. Minimax Tutorial with a Numerical Solution Platform Java implementation used in a Checkers Game Detection theory Game artificial intelligence Graph algorithms Optimization algorithms and methods Search algorithms Game theory Theorems in discrete mathematics Decision theory Fixed points (mathematics) Articles with example pseudocode

19590

https://en.wikipedia.org/wiki/Minnesota

Minnesota

Minnesota () is a state in the upper Midwestern United States. It is the 12th largest U.S. state in area and the 22nd most populous, with over 5.75 million residents. Minnesota's geography consists of western prairies, now given over to intensive agriculture; deciduous forests in the southeast, now partially cleared, farmed, and settled; and the less populated North Woods, used for mining, forestry, and recreation. Roughly a third of the state is covered in forests, and it is known as the "Land of 10,000 Lakes" for having over 14,000 bodies of fresh water of at least ten acres. A little more than half of Minnesotans live in the Minneapolis–Saint Paul metropolitan area, known as the "Twin Cities", the state's main political, economic, and cultural hub. The Twin Cities is the 16th largest metropolitan area in the U.S. Other minor metropolitan and micropolitan statistical areas include Duluth, Mankato, Moorhead, Rochester, and St. Cloud. Minnesota, which gets its name from the Dakota language, has been inhabited by various indigenous peoples since the Woodland period of the 11th century BCE. Between roughly 200 and 500 CE, two areas of the indigenous Hopewell tradition emerged: the Laurel Complex in the north, and Trempealeau Hopewell in the Mississippi River Valley in the south. The Upper Mississippian culture, consisting of the Oneota people and other Siouan speakers, emerged around 1000 CE and lasted through the arrival of Europeans in the 17th century. French explorers and missionaries were the earliest Europeans to enter the region, encountering the Dakota, Ojibwe, and various Anishinaabe tribes. Much of what is now Minnesota formed part of the vast French holding of Louisiana, which the United States purchased in 1803. After several territorial reorganizations, the Minnesota Territory was admitted to the Union as the 32nd state in 1858. Minnesota's official motto, , is the only state motto in French; meaning "The Star of the North", it was adopted shortly after statehood and reflects both the state's early French settlers and its position as the northernmost state in the contiguous U.S. As part of the American frontier, Minnesota attracted settlers and homesteaders from across the country, with its growth initially centered on timber, agriculture, and railroad construction. Into the early 20th century, European immigrants arrived in significant numbers, particularly from Scandinavia, Germany, and Central Europe; many were linked to the failed revolutions of 1848, which partly influenced the state's development as a major center of labor and social activism. Minnesota's rapid industrialization and urbanization precipitated major social, economic, and political changes in the late 19th and early 20th centuries; the state was at the forefront of labor rights, women's suffrage, and political reform. Minnesotan politics, culture, and identity continue to reflect this history and remain highly progressive by national standards. Since the late 20th century, Minnesota's economy has diversified significantly, shifting from traditional industries such as agriculture and resource extraction to services, finance, and health care; it is consequently one of the richest in terms of GDP and per capita income. The state is home to 11 federally recognized Native American reservations (seven Ojibwe, four Dakota), and remains a center of Scandinavian and German cultures with an influence of Lutheranism. In recent decades, Minnesota has become increasingly multicultural, driven by both greater domestic migration and immigration from Latin America, Asia, the Horn of Africa, and the Middle East; it has the nation's largest population of Somali Americans and second largest Hmong population. Minnesota's standard of living and level of education are among the highest in the U.S., and it is ranked among the best states in metrics such as employment, median income, safety, and governance. Etymology The word Minnesota comes from the Dakota name for the Minnesota River, which got its name from one of two words in Dakota: "mní sóta", which means "clear blue water", or "Mníssota", which means "cloudy water". Dakota people demonstrated the name to early settlers by dropping milk into water and calling it mní sóta. Many places in the state have similar Dakota names, such as Minnehaha Falls ("curling water" or waterfall), Minneiska ("white water"), Minneota ("much water"), Minnetonka ("big water"), Minnetrista ("crooked water"), and Minneapolis, a hybrid word combining Dakota mní ("water") and -polis (Greek for "city"). History When Europeans arrived in North America, the Dakota people lived in Minnesota. The first Europeans to enter the region were French voyageurs, fur traders who arrived in the 17th century. They used the Grand Portage to access trapping and trading areas further into Minnesota. The Anishinaabe (also known as Ojibwe or Chippewa) were migrating into Minnesota, causing tensions with the Dakota people, and dislocated the Mdewakanton from their homelands along Mille Lacs Lake. Explorers such as Daniel Greysolon, Sieur du Lhut, Father Louis Hennepin, Jonathan Carver, Henry Schoolcraft, and Joseph Nicollet mapped the state. The region was part of Spanish Louisiana from 1762 to 1802. The portion of the state east of the Mississippi River became part of the United States at the end of the American Revolutionary War, when the Second Treaty of Paris was signed. Land west of the Mississippi was acquired with the Louisiana Purchase, though part of the Red River Valley was disputed until the Treaty of 1818. In 1805 Zebulon Pike bargained with Native Americans to acquire land at the confluence of the Minnesota and Mississippi rivers to create a military reservation. The construction of Fort Snelling followed between 1819 and 1825. Its soldiers built a grist mill and a sawmill at Saint Anthony Falls, which were harbingers of the water-powered industries around which Minneapolis later grew. Meanwhile, squatters, government officials, and others had settled near the fort; in 1839 the army forced them off military lands, and most moved downriver, just outside the military reservation, to the area that became St. Paul. Minnesota underwent several territorial organizations. From 1812 to 1821 it was part of the Territory of Missouri that corresponded with much of the Louisiana Purchase. It was briefly an unorganized territory (1821-1834) and was later consolidated with Wisconsin, Iowa and half the Dakotas to form the short-lived Territory of Michigan (1834-1836). From 1836 to 1848 Minnesota and Iowa were part of the Territory of Wisconsin. From 1838 to 1846 Minnesota west of the Mississippi River was part of the Territory of Iowa. Minnesota east of the Mississippi was part of Wisconsin until 1848. When Iowa gained statehood western Minnesota was in an Unorganized Territory again. Minnesota Territory was formed on March 3, 1849. The first territorial legislature, held on September 2, 1849, was dominated by men of New England ancestry. Thousands of pioneers had come to create farms and cut timber. Minnesota became the 32nd U.S. state on May 11, 1858. The founding population was so overwhelmingly of New England origins that the state was dubbed "the New England of the West". Treaties between the U.S. Government and the Dakota and Ojibwe gradually forced the natives off their lands and onto reservations. In 1861 residents of Mankato formed the Knights of the Forest, with a goal of eliminating all Native Americans from Minnesota. As conditions deteriorated for the Dakota, tensions rose, leading to the Dakota War of 1862. The six-week war ended with the execution of 38 Dakota and the exile of many to the Crow Creek Reservation in Dakota Territory. As many as 800 settlers died during the war. Minnesota Governor Alexander Ramsey subsequently declared that "the Sioux Indians of Minnesota must be exterminated or driven forever beyond the borders of the state.” He also placed a bounty of $25/scalp on the heads of the Dakota men. Over 1,600 Dakota women, children, and elderly walked from the Lower Sioux Agency to Fort Snelling to be held until the spring thaw allowed riverboats to take them out of Minnesota to Crow Creek by the Great Sioux Reservation. Shortly after arriving at the fort, one of the women was raped by soldiers while gathering firewood. William Crooks, commander of 6th Minnesota, had a palisade erected around the encampment on Pike Island, just below the fort, to protect native people from the soldiers and settlers. Conditions there were poor. The food was meager, measles and cholera swept the enclosure, and nothing had been done to provide sanitation. Many died. The men were imprisoned or had fled. In early 1863, Ramsey resigned as governor to become the Federal Indian Commissioner. His successor, Governor Henry Swift, raised the bounty to $200/scalp immediately. When hostilities broke out there were 6,500-7,000 Dakota in the state. When hostilities ended there were 2,000 in custody. The remainder had fled the state into Canada, the Canadians having set aside two parcels of 7,000 and 8,000 acres for those who crossed into Manitoba. The Canadians were not eager to take in the displaced Minnesota Dakota but went on to set aside even more land for them. Upon becoming Indian Commissioner, Ramsey set out to get the Ojibwe too. In 1863 he negotiated the Treaty of Old Crossing, whereby the Ojibwe ceded all their land in northern Minnesota and moved to reservations. Logging, farming, and railroads were mainstays of Minnesota's early economy. The sawmills at Saint Anthony Falls and logging centers of Pine City, Marine on St. Croix, Stillwater, and Winona processed vast quantities of timber. These cities were on rivers that were ideal for transportation. St. Anthony Falls was later tapped to provide power for flour mills. Innovations by Minneapolis millers led to the production of Minnesota "patent" flour, which commanded almost double the price of "bakers'" or "clear" flour which it replaced. By 1900 Minnesota mills, led by Pillsbury, Northwestern, and the Washburn-Crosby Company (an ancestor of General Mills), were grinding 14.1% of the nation's grain. The state's iron-mining industry was established with the discovery of iron in the Vermilion and Mesabi ranges in the 1880s, followed by the Cuyuna Range in the early 1900s. The ore went by rail to Duluth and Two Harbors for ship transport east via the Great Lakes. Industrial development and the rise of manufacturing caused the population to shift gradually from rural areas to cities during the early 20th century. Nevertheless, farming remained prevalent. Minnesota's economy was hit hard by the Great Depression, resulting in lower prices for farmers, layoffs among iron miners, and labor unrest. Compounding the adversity, western Minnesota and the Dakotas were hit by drought from 1931 to 1935. New Deal programs provided some economic turnaround. The Civilian Conservation Corps and other programs around the state established some jobs for Indians on their reservations, and the Indian Reorganization Act of 1934 provided the tribes with a mechanism of self-government. This gave Natives a greater voice within the state and promoted more respect for tribal customs because religious ceremonies and native languages were no longer suppressed. After World War II, industrial development quickened. New technology increased farm productivity through automation of feedlots for hogs and cattle, machine milking at dairy farms, and raising chickens in large buildings. Planting became more specialized, with hybridization of corn and wheat, and farm machinery such as tractors and combines became the norm. University of Minnesota professor Norman Borlaug contributed to these developments as part of the Green Revolution. Suburban development accelerated due to increased postwar housing demand and convenient transportation. Increased mobility in turn enabled more specialized jobs. Minnesota became a center of technology after World War II. Engineering Research Associates was formed in 1946 to develop computers for the United States Navy. It later merged with Remington Rand, and then became Sperry Rand. William Norris left Sperry in 1957 to form Control Data Corporation (CDC). Cray Research was formed when Seymour Cray left CDC to form his own company. Medical device maker Medtronic also started business in the Twin Cities in 1949. The United States Navy and Coast Guard have recognized Minnesota with: steam frigate Geography Minnesota is the second northernmost U.S. state (after Alaska) and northernmost contiguous state, as the isolated Northwest Angle in Lake of the Woods County is the only part of the 48 contiguous states north of the 49th parallel. The state is part of the U.S. region known as the Upper Midwest and part of North America's Great Lakes Region. It shares a Lake Superior water border with Michigan and a land and water border with Wisconsin to the east. Iowa is to the south, North Dakota and South Dakota are to the west, and the Canadian provinces of Ontario and Manitoba are to the north. With , or approximately 2.25% of the United States, Minnesota is the 12th-largest state. Geology Minnesota has some of the earth's oldest rocks, gneisses that are about 3.6billion years old (80% as old as the planet). About 2.7billion years ago basaltic lava poured out of cracks in the floor of the primordial ocean; the remains of this volcanic rock formed the Canadian Shield in northeast Minnesota. The roots of these volcanic mountains and the action of Precambrian seas formed the Iron Range of northern Minnesota. Since a period of volcanism 1.1billion years ago, Minnesota's geological activity has been more subdued, with no volcanism or mountain formation, but with repeated incursions of the sea, which left behind multiple strata of sedimentary rock. In more recent times, massive ice sheets at least one kilometer thick ravaged the state's landscape and sculpted its terrain. The Wisconsin glaciation left 12,000 years ago. These glaciers covered all of Minnesota except the far southeast, an area characterized by steep hills and streams that cut into the bedrock. This area is known as the Driftless Zone for its absence of glacial drift. Much of the remainder of the state has fifty feet (15m) or more of glacial till left behind as the last glaciers retreated. Gigantic Lake Agassiz formed in the northwest 13,000 years ago. Its flat bed now is the fertile Red River valley, and its outflow, glacial River Warren, carved the valley of the Minnesota River and the Upper Mississippi downstream from Fort Snelling. Minnesota is geologically quiet today; it experiences earthquakes infrequently, most of them minor. The state's high point is Eagle Mountain at 2,301 feet (701m), which is only away from the low point of 601 feet (183m) at the shore of Lake Superior. Notwithstanding dramatic local differences in elevation, much of the state is a gently rolling peneplain. Two major drainage divides meet in Minnesota's northeast in rural Hibbing, forming a triple watershed. Precipitation can follow the Mississippi River south to the Gulf of Mexico, the Saint Lawrence Seaway east to the Atlantic Ocean, or the Hudson Bay watershed to the Arctic Ocean. The state's nickname "Land of 10,000 Lakes" is apt, as there are 11,842 Minnesota lakes over in size. Minnesota's portion of Lake Superior is the largest at and deepest (at ) body of water in the state. Minnesota has 6,564 natural rivers and streams that cumulatively flow for . The Mississippi River begins its journey from its headwaters at Lake Itasca and crosses the Iowa border downstream. It is joined by the Minnesota River at Fort Snelling, by the St. Croix River near Hastings, by the Chippewa River at Wabasha, and by many smaller streams. The Red River drains the northwest part of the state northward toward Canada's Hudson Bay. Approximately of wetlands are within Minnesota's borders, the most of any state outside Alaska. Flora and fauna Minnesota has four ecological provinces: prairie parkland, in the southwestern and western parts of the state; the eastern broadleaf forest (Big Woods) in the southeast, extending in a narrowing strip to the state's northwestern part, where it transitions into tallgrass aspen parkland; and the northern Laurentian mixed forest, a transitional forest between the northern boreal forest and the broadleaf forests to the south. These northern forests are a vast wilderness of pine and spruce trees mixed with patchy stands of birch and poplar. Much of Minnesota's northern forest has undergone logging, leaving only a few patches of old growth forest today in areas such as the Chippewa National Forest and the Superior National Forest, where the Boundary Waters Canoe Area Wilderness has some of unlogged land. Although logging continues, regrowth and replanting keep about a third of the state forested. Nearly all Minnesota's prairies and oak savannas have been fragmented by farming, grazing, logging, and suburban development. While loss of habitat has affected native animals such as the pine marten, elk, woodland caribou, and bison, others like whitetail deer and bobcat thrive. Minnesota has the nation's largest population of timber wolves outside Alaska, and supports healthy populations of black bears, moose, and gophers. Located on the Mississippi Flyway, Minnesota hosts migratory waterfowl such as geese and ducks, and game birds such as grouse, pheasants, and turkeys. It is home to birds of prey, including the largest number of breeding pairs of bald eagles in the lower 48 states as of 2007, red-tailed hawks, and snowy owls. Hawk Ridge is one of the premier bird watching sites in North America. The lakes teem with sport fish such as walleye, bass, muskellunge, and northern pike, and brook, brown, and rainbow trout populate streams in the southeast and northeast. Climate Minnesota experiences temperature extremes characteristic of its continental climate, with cold winters and hot summers. The lowest temperature recorded was at Tower on February 2, 1996, and the highest was at Moorhead on July 6, 1936. Meteorological events include rain, snow, blizzards, thunderstorms, hail, derechos, tornadoes, and high-velocity straight-line winds. The growing season varies from 90 days in the far northeast to 160 days in southeast Minnesota near the Mississippi River, and average temperatures range from . Average summer dewpoints range from about in the south to about in the north. Average annual precipitation ranges from , and droughts occur every 10 to 50 years. Protected lands Minnesota's first state park, Itasca State Park, was established in 1891, and is the source of the Mississippi River. Today Minnesota has 72 state parks and recreation areas, 58 state forests covering about four million acres (16,000km2), and numerous state wildlife preserves, all managed by the Minnesota Department of Natural Resources. The Chippewa and Superior national forests comprise . The Superior National Forest in the northeast contains the Boundary Waters Canoe Area Wilderness, which encompasses over a million acres (4,000km2) and a thousand lakes. To its west is Voyageurs National Park. The Mississippi National River and Recreation Area (MNRRA) is a corridor along the Mississippi River through the Minneapolis–St. Paul Metropolitan Area connecting a variety of sites of historic, cultural, and geologic interest. Cities and towns Saint Paul, in east-central Minnesota along the banks of the Mississippi River, has been Minnesota's capital city since 1849, first as capital of the Territory of Minnesota, and then as the state capital since 1858. Saint Paul is adjacent to Minnesota's most populous city, Minneapolis; they and their suburbs are collectively known as the Twin Cities metropolitan area, the country's 16th-largest metropolitan area and home to about 55% of the state's population. The remainder of the state is known as "Greater Minnesota" or "Outstate Minnesota". The state has 17 cities with populations above 50,000 as of the 2010 census. In descending order of population, they are Minneapolis, Saint Paul, Rochester, Duluth, Bloomington, Brooklyn Park, Plymouth, Saint Cloud, Woodbury, Eagan, Maple Grove, Coon Rapids, Eden Prairie, Minnetonka, Burnsville, Apple Valley, Blaine, and Lakeville. Of these, only Rochester, Duluth, and Saint Cloud are outside the Twin Cities metropolitan area. Minnesota's population continues to grow, primarily in the urban centers. The populations of metropolitan Sherburne and Scott counties doubled between 1980 and 2000, while 40 of the state's 87 counties lost residents over the same period. The United States Navy has recognized multiple Minnesota communities. Demographics Population From fewer than 6,120 white settlers in 1850, Minnesota's official population grew to over 1.7million by 1900. Each of the next six decades saw a 15% increase in population, reaching 3.4million in 1960. Growth then slowed, rising 11% to 3.8million in 1970, and an average of 9% over the next three decades to 4.9million in the 2000 census. The 2020 United States census showed Minnesota's population at 5,709,752 on April 1, 2020, a 7.65% increase since the 2010 United States census. The rate of population change, and age and gender distributions, approximate the national average. Minnesota's center of population is in Hennepin County. At the 2010 census Minnesota's population was 5,303,925. The gender makeup of the state was 49.6% male and 50.4% female. 24.2% of the population was under age 18; 9.5% between 18 and 24; 26.3% from 25 to 44; 27.1% from 45 to 64; and 12.9% 65 or older. The table below shows the racial composition of Minnesota's population as of the 2020 census. According to the 2017 American Community Survey, 5.1% of Minnesota's population were of Hispanic or Latino origin (of any race): Mexican (3.5%), Puerto Rican (0.2%), Cuban (0.1%), and other Hispanic or Latino origin (1.2%). The ancestry groups claimed by more than 5% of the population were German (33.8%), Norwegian (15.3%), Irish (10.5%), Swedish (8.1%), and English (5.4%). In 2011 non-Hispanic whites accounted for 72.3% of all births, but Minnesota's growing minority groups still form a smaller percentage of the population than in the nation as a whole. Minnesota has the country's largest Somali population, with an estimated 57,000 people, the largest concentration outside of the Horn of Africa. Religion The majority of Minnesotans are Protestants, including a large Lutheran contingent, owing to the state's largely Northern European ethnic makeup. Roman Catholics (of largely German, Irish, French and Slavic descent) make up the largest single Christian denomination. A 2010 survey by the Pew Forum on Religion and Public Life showed that 32% of Minnesotans were affiliated with Mainline Protestant traditions, 21% were Evangelical Protestants, 28% Roman Catholic, 1% each Jewish, Muslim, Buddhist, and Black Protestant, and smaller amounts of other faiths, with 13% unaffiliated. According to the Association of Religion Data Archives, the denominations with the most adherents in 2010 were the Roman Catholic Church with 1,150,367; the Evangelical Lutheran Church in America with 737,537; and the Lutheran Church–Missouri Synod with 182,439. This is broadly consistent with the results of the 2001 American Religious Identification Survey, which also gives detailed percentages for many individual denominations. The international Confessional Evangelical Lutheran Conference is headquartered in Mankato, Minnesota. Although Christianity is dominant, Minnesota has a long history with non-Christian faiths. Ashkenazi Jewish pioneers set up Saint Paul's first synagogue in 1856. Minnesota is home to more than 30 mosques, mostly in the Twin Cities metro area. The Temple of ECK, the spiritual home of Eckankar, is based in Minnesota. Economy Once primarily a producer of raw materials, Minnesota's economy has transformed to emphasize finished products and services. Perhaps the most significant characteristic of the economy is its diversity; the relative outputs of its business sectors closely match the United States as a whole. Minnesota's economy had a gross domestic product of $383billion in 2019, with 33 of the United States' top 1,000 publicly traded companies by revenue headquartered in Minnesota, including Target, UnitedHealth Group, 3M, General Mills, U.S. Bancorp, Ameriprise, Hormel, Land O' Lakes, SuperValu, Best Buy, and Valspar. Private companies based in Minnesota include Cargill, the largest privately owned company in the United States, and Carlson Companies, the parent company of Radisson Hotels. Minnesota's per capita personal income in 2019 was $58,834, the thirteenth-highest in the nation. Its 2019 median household income was $74,593, ranking thirteenth in the U.S. and fifth among the 36 states not on the Atlantic coast. Industry and commerce Minnesota's earliest industries were fur trading and agriculture. Minneapolis grew around the flour mills powered by St. Anthony Falls. Although less than 1% of the population is now employed in the agricultural sector, it remains a major part of the state's economy, ranking sixth in the nation in the value of products sold. The state is the nation's largest producer of sugar beets, sweet corn, and peas for processing, and farm-raised turkeys. Minnesota is also a large producer of corn and soybeans, and has the most food cooperatives per capita in the United States. Forestry remains strong, including logging, pulpwood processing and paper production, and forest products manufacturing. Minnesota was famous for its soft-ore mines, which produced a significant portion of the world's iron ore for more than a century. Although the high-grade ore is now depleted, taconite mining continues, using processes developed locally to save the industry. In 2016 the state produced 60% of the country's usable iron ore. The mining boom created the port of Duluth, which continues to be important for shipping ore, coal, and agricultural products. The manufacturing sector now includes technology and biomedical firms, in addition to the older food processors and heavy industry. The nation's first indoor shopping mall was Edina's Southdale Center, and its largest is Bloomington's Mall of America. Minnesota is one of 45 U.S. states with its own lottery; its games include multi-jurisdiction draws, in-house draws, and other games. Energy use and production Minnesota produces ethanol fuel and is the first to mandate its use, a 10% mix (E10). In 2019 there were more than 411 service stations supplying E85 fuel, comprising 85% ethanol and 15% gasoline. A 2% biodiesel blend has been required in diesel fuel since 2005. Minnesota is ranked in the top ten for wind energy production. The state gets nearly one fifth of all its electrical energy from wind. Xcel Energy is the state's largest utility and is headquartered in the state; it is one of five investor-owned utilities. There are also a number of municipal utilities. State taxes Minnesota has a progressive income tax structure; the four brackets of state income tax rates are 5.35%, 7.05%, 7.85%, and 9.85%. As of 2008 Minnesota was ranked 12th in the nation in per capita total state and local taxes. In 2008 Minnesotans paid 10.2% of their income in state and local taxes; the U.S. average was 9.7%. The state sales tax in Minnesota is 6.875%, but clothing, prescription drug medications and food items for home consumption are exempt. The state legislature may allow municipalities to institute local sales taxes and special local taxes, such as the 0.5% supplemental sales tax in Minneapolis. Excise taxes are levied on alcohol, tobacco, and motor fuel. The state imposes a use tax on items purchased elsewhere but used within Minnesota. Owners of real property in Minnesota pay property tax to their county, municipality, school district, and special taxing districts. Culture Fine and performing arts Minnesota's leading fine art museums include the Minneapolis Institute of Art, the Walker Art Center, the Frederick R. Weisman Art Museum, and The Museum of Russian Art (TMORA). All are in Minneapolis. The Minnesota Orchestra and the Saint Paul Chamber Orchestra are prominent full-time professional musical ensembles who perform concerts and offer educational programs to the Twin Cities' community. The world-renowned Guthrie Theater moved into a new Minneapolis facility in 2006, boasting three stages and overlooking the Mississippi River. Attendance at theatrical, musical, and comedy events in the area is strong. In the United States, Minneapolis's number of theater companies ranks behind only New York City's, and about 2.3million theater tickets were sold in the Twin Cities annually as of 2006. The Minnesota Fringe Festival in Minneapolis is an annual celebration of theatre, dance, improvisation, puppetry, kids' shows, visual art, and musicals with more than 800 performances over 11 days. It is the country's largest non-juried performing arts festival. Literature The rigors and rewards of pioneer life on the prairie are the subject of Giants in the Earth by Ole Rolvaag and the Little House series of children's books by Laura Ingalls Wilder. Small-town life is portrayed grimly by Sinclair Lewis in the novel Main Street, and more gently and affectionately by Garrison Keillor in his tales of Lake Wobegon. St. Paul native F. Scott Fitzgerald writes of the social insecurities and aspirations of the young city in stories such as Winter Dreams and The Ice Palace (published in Flappers and Philosophers). Henry Wadsworth Longfellow's epic poem The Song of Hiawatha was inspired by Minnesota and names many of the state's places and bodies of water. Minnesota native Robert Zimmerman (Bob Dylan) won the 2016 Nobel Prize in Literature. Science fiction writer Marissa Lingen lives here. Entertainment Minnesota musicians include Prince, Bob Dylan, Eddie Cochran, The Andrews Sisters, The Castaways, The Trashmen, Soul Asylum, David Ellefson, Chad Smith, John Wozniak, Hüsker Dü, Semisonic, The Replacements, Owl City, Holly Henry, Motion City Soundtrack, Atmosphere, and Dessa. Minnesotans helped shape the history of music through popular American culture: the Andrews Sisters' "Boogie Woogie Bugle Boy" was an iconic tune of World War II, while the Trashmen's "Surfin' Bird" and Bob Dylan epitomize two sides of the 1960s. In the 1980s, influential hit radio groups and musicians included Prince, The Original 7ven, Jimmy Jam & Terry Lewis, The Jets, Lipps Inc., and Information Society. Minnesotans have also made significant contributions to comedy, theater, media, and film. The comic strip Peanuts was created by St. Paul native Charles M. Schulz. A Prairie Home Companion which first aired in 1974, became a long-running comedy radio show on National Public Radio. A cult scifi cable TV show, Mystery Science Theater 3000, was created by Joel Hodgson in Hopkins, and Minneapolis, MN. Another popular comedy staple developed in the 1990s, The Daily Show, was originated through Lizz Winstead and Madeleine Smithberg. Joel and Ethan Coen, Terry Gilliam, Bill Pohlad, and Mike Todd contributed to the art of filmmaking as writers, directors, and producers. Notable actors from Minnesota include Loni Anderson, Richard Dean Anderson, James Arness, Jessica Biel, Rachael Leigh Cook, Julia Duffy, Mike Farrell, Judy Garland, Peter Graves, Josh Hartnett, Garrett Hedlund, Tippi Hedren, Jessica Lange, Kelly Lynch, E.G. Marshall, Laura Osnes, Melissa Peterman, Chris Pratt, Marion Ross, Jane Russell, Winona Ryder, Seann William Scott, Kevin Sorbo, Lea Thompson, Vince Vaughn, Jesse Ventura, and Steve Zahn. Popular culture Stereotypical traits of Minnesotans include "Minnesota nice", Lutheranism, a strong sense of community and shared culture, and a distinctive brand of North Central American English sprinkled with Scandinavian expressions. Potlucks, usually with a variety of hotdishes, are popular small-town church activities. A small segment of the Scandinavian population attend a traditional lutefisk dinner to celebrate Christmas. Life in Minnesota has also been depicted or used as a backdrop, in movies such as Fargo, Grumpy Old Men, Grumpier Old Men, Juno, Drop Dead Gorgeous, Young Adult, A Serious Man, New in Town, Rio, The Mighty Ducks films, and in famous television series like Little House on the Prairie, The Mary Tyler Moore Show, The Golden Girls, Coach, The Rocky and Bullwinkle Show, How I Met Your Mother and Fargo. Major movies shot on location in Minnesota include That Was Then... This Is Now, Purple Rain, Airport, Beautiful Girls, North Country, Untamed Heart, Feeling Minnesota, Jingle All The Way, A Simple Plan, and The Mighty Ducks films. The Minnesota State Fair, advertised as The Great Minnesota Get-Together, is an icon of state culture. In a state of 5.5million people, there were more than 1.8million visitors to the fair in 2014, setting a new attendance record. The fair covers the variety of Minnesota life, including fine art, science, agriculture, food preparation, 4-H displays, music, the midway, and corporate merchandising. It is known for its displays of seed art, butter sculptures of dairy princesses, the birthing barn, and the "fattest pig" competition. One can also find dozens of varieties of food on a stick, such as Pronto Pups, cheese curds, and deep-fried candy bars. On a smaller scale, many of these attractions are offered at numerous county fairs. Other large annual festivals include the Saint Paul Winter Carnival, the Minnesota Renaissance Festival, Minneapolis' Aquatennial and Mill City Music Festival, Moondance Jam in Walker, Sonshine Christian music festival in Willmar, the Judy Garland Festival in Grand Rapids, the Eelpout Festival on Leech Lake, and the WE Fest in Detroit Lakes. Health Minnesotans have low rates of premature death, infant mortality, cardiovascular disease, and occupational fatalities. They have long life expectancies, and high rates of health insurance and regular exercise. These and other measures have led two groups to rank Minnesota as the healthiest state in the nation; however, in one of these rankings, Minnesota descended from first to sixth in the nation between 2005 and 2009 because of low levels of public health funding and the prevalence of binge drinking. While overall health indicators are strong, Minnesota does have significant health disparities in minority populations. On October 1, 2007, the Freedom to Breathe Act took effect, outlawing smoking in restaurants and bars in Minnesota. The Minnesota Department of Health is the primary state health agency responsible for public policy and regulation. Medical care in the state is provided by a comprehensive network of hospitals and clinics operated by a number of large providers including Allina Hospitals & Clinics, CentraCare Health System, Essentia Health, HealthPartners, M Health Fairview and the Mayo Clinic Health System. There are two teaching hospitals and medical schools in Minnesota. The University of Minnesota Medical School is a high-rated teaching institution that has made a number of breakthroughs in treatment, and its research activities contribute significantly to the state's growing biotechnology industry. The Mayo Clinic, a world-renowned hospital based in Rochester, was founded by William Worrall Mayo, an immigrant from England. U.S. News & World Report 2020–21 survey ranked 4,554 hospitals in the country in 12 specialized fields of care, and placed the Mayo Clinic in the top four in most fields. The hospital ranked first on the best hospitals honor roll. The only specialty where it fell outside the top ten was ophthalmology. The Mayo Clinic and the University of Minnesota are partners in the Minnesota Partnership for Biotechnology and Medical Genomics, a state-funded program that conducts research into cancer, Alzheimer's disease, heart health, obesity, and other areas. Education One of the first acts of the Minnesota Legislature when it opened in 1858 was the creation of a normal school in Winona. Minnesota's commitment to education has contributed to a literate and well-educated populace. In 2009, according to the U.S. Census Bureau, Minnesota had the second-highest proportion of high school graduates, with 91.5% of people 25 and older holding a high school diploma, and the tenth-highest proportion of people with bachelor's degrees. In 2015, Minneapolis was named the nation's "Most Literate City", while St. Paul placed fourth, according to a major annual survey. In a 2013 study conducted by the National Center for Educational Statistics comparing the performance of eighth-grade students internationally in math and science, Minnesota ranked eighth in the world and third in the United States, behind Massachusetts and Vermont. In 2014, Minnesota students earned the tenth-highest average composite score in the nation on the ACT exam. In 2013, nationwide in per-student public education spending, Minnesota ranked 21st. While Minnesota has chosen not to implement school vouchers, it is home to the first charter school. The state supports a network of public universities and colleges, including 37 institutions in the Minnesota State Colleges and Universities System, and five major campuses of the University of Minnesota system. It is also home to more than 20 private colleges and universities, six of which rank among the nation's top 100 liberal arts colleges, according to U.S. News & World Report. Transportation Transportation in Minnesota is overseen by the Minnesota Department of Transportation (MnDOT) at the state level and by regional and local governments at the local level. Principal transportation corridors radiate from the Twin Cities metropolitan area and along interstate corridors in Greater Minnesota. The major Interstate highways are Interstate35 (I-35), I-90, and I-94, with I-35 and I-94 connecting the Minneapolis–St. Paul area, and I-90 traveling east–west along the southern edge of the state. In 2006, a constitutional amendment was passed that required sales and use taxes on motor vehicles to fund transportation, with at least 40% dedicated to public transit. There are nearly two dozen rail corridors in Minnesota, most of which go through Minneapolis–St. Paul or Duluth. There is water transportation along the Mississippi River system and from the ports of Lake Superior. Minnesota's principal airport is Minneapolis–St. Paul International Airport (MSP), a major passenger and freight hub for Delta Air Lines and Sun Country Airlines. Most other domestic carriers serve the airport. Large commercial jet service is provided at Duluth and Rochester, with scheduled commuter service to four smaller cities via Delta Connection carriers SkyWest Airlines, Compass Airlines, and Endeavor Air. Public transit services are available in the regional urban centers in Minnesota including Metro Transit in the Twin Cities, opt-out suburban operators Minnesota Valley Transit Authority, SouthWest Transit, Plymouth Metrolink, Maple Grove Transit and others. In Greater Minnesota transit services are provided by city systems such as Duluth Transit Authority, Mankato Transit System, MATBUS (Fargo-Moorhead), Rochester Public Transit, Saint Cloud Metro Bus, Winona Public Transit and others. Dial-a-Ride service is available for persons with disabilities in a majority of Minnesota Counties. In addition to bus services, Amtrak's daily Empire Builder (Chicago–Seattle/Portland) train runs through Minnesota, calling at the Saint Paul Union Depot and five other stations. Intercity bus providers include Jefferson Lines, Greyhound, and Megabus. Local public transit is provided by bus networks in the larger cities and by two rail services. The Northstar Line commuter rail service runs from Big Lake to the Target Field station in downtown Minneapolis. From there, light rail runs to Saint Paul Union Depot on the Green Line, and to the MSP airport and the Mall of America via the Blue Line. Law and government Minnesota is governed pursuant to its constitution, which was adopted October 13, 1857, roughly one year before statehood. Like all U.S. states and the federal government, Minnesota has a republican system of political representation with power divided into three branches: executive, legislative, and judicial. The state constitution includes a bill of rights that reaffirms many of the same rights and freedoms as its federal counterpart, with some protected more strongly and explicitly. Executive The executive branch is headed by the governor, currently Tim Walz, DFL (Democratic–Farmer–Labor), who took office on January 7, 2019. The governor has a cabinet consisting of the leaders of various state government agencies, called commissioners. The other elected constitutional offices are secretary of state, attorney general, and state auditor. Constitutional officeholders: Governor Tim Walz (DFL) Lt. Governor Peggy Flanagan (DFL) Secretary of State Steve Simon (DFL) Attorney General Keith Ellison (DFL) State Auditor Julie Blaha (DFL) Legislature The Minnesota Legislature is a bicameral body consisting of the Senate and the House of Representatives. The state has 67 districts, each with about 60,000 people. Each district has one senator and two representatives, each senatorial district being divided into A and B sections for members of the House. Senators serve for four years and representatives for two years. In the November 2010 Minnesota House election, the Republicans gained 25 house seats, giving them control of the body by a 72–62 margin. The 2010 Senate election also saw Minnesota voters elect a Republican majority in the state Senate for the first time since 1972. In 2012, the Democrats regained the House of Representatives by a margin of 73–61, picking up 11 seats; the Democrats also regained the Minnesota Senate. Control of the House shifted back to Republicans in the 2014 election and returned to the DFL in the 2018 midterm election. Since 2016, the Senate has had a slim Republican majority. House Leadership Speaker: Melissa Hortman (DFL-36B) Majority Leader: Ryan Winkler (DFL-46A) Majority Whip: Kaohly Her (DFL-64A) Speaker Pro Tempore: Liz Olson (DFL-7B) Assistant Majority Leaders: Heather Edelson (DFL-49A), Emma Greenman (DFL-63B), Michael Howard (DFL-50A), Todd Lippert (DLF-20B), Kelly Morrison (DFL-33B), Dan Wolgamott (DFL-14B) Minority Leader: Kurt Daudt (R-31A) Deputy Minority Leader: Anne Neu (R-32B) Minority Whip: Barb Haley (R-21A) Assistant Minority Leaders: Dave Baker (R-17B), Peggy Bennett (R-27A), Lisa Demuth (R-13A), Jim Nash (R-47A), Paul Novotny (R-30A), Bjorn Olson (R-23A), Peggy Scott (R-35B), Paul Torkelson (R-16B) Senate Leadership President: Jeremy Miller (R-28) President Pro Tempore: David Tomassoni (I-06) Majority Leader: Paul Gazelka (R-09) Deputy Majority Leader: Mark Johnson (R-01) Assistant Majority Leaders: Roger Chamberlain (R-38), Karin Housley (R-39), John Jasinski (R-24), Zach Duckworth (R-58), Eric Pratt (R-55) Minority Leader: Melisa Franzen (DFL-49) Minority Whips: Kent Eken (DFL-4), Jason Isaacson (DLF-42) Assistant Minority Leaders: Nick Frentz (DFL-19), Foung Hawj (DFL-67) Judiciary Minnesota's court system has three levels. Most cases start in the district courts, which are courts of general jurisdiction. There are 279 district court judgeships in ten judicial districts. Appeals from the trial courts and challenges to certain governmental decisions are heard by the Minnesota Court of Appeals, consisting of 19 judges who typically sit in three-judge panels. The seven-justice Minnesota Supreme Court hears all appeals from the tax court, the workers' compensation court of appeals, first-degree murder convictions, and discretionary appeals from the court of appeals; it also has original jurisdiction over election disputes. Two specialized courts within administrative agencies have been established: the workers' compensation court of appeals, and the tax court, which deals with non-criminal tax cases. Supreme Court Justices Chief Justice Lorie Gildea Associate Justices Barry Anderson David Lillehaug Natalie Hudson Margaret Chutich Anne McKeig Paul Thissen Regional In addition to the city and county levels of government found in the United States, Minnesota has other entities that provide governmental oversight and planning. Regional development commissions (RDCs) provide technical assistance to local governments in the broad multi-county areas of the state. Along with this Metropolitan Planning Organizations (MPOs), such as the Metropolitan Council, provide planning and oversight of land use actions in metropolitan areas. Many lakes and rivers are overseen by watershed districts and soil and water conservation districts. Federal Minnesota's United States senators are Democrats Amy Klobuchar and Tina Smith. The state has eight congressional districts; they are represented by Jim Hagedorn (1st district; R), Angie Craig (2nd; DFL), Dean Phillips (3rd; DFL), Betty McCollum (4th; DFL), Ilhan Omar (5th; DFL), Tom Emmer (6th; R), Michelle Fischbach (7th; R), and Pete Stauber (8th; R). Federal court cases are heard in the United States District Court for the District of Minnesota, in Minneapolis, St. Paul, Duluth, and Fergus Falls. Appeals are heard by the Eighth Circuit Court of Appeals in St. Louis, Missouri and St. Paul. Tribal The State of Minnesota was created by the United States federal government in the traditional and cultural range of lands occupied by the Dakota and Anishinaabe peoples as well as other Native American groups. After many years of unequal treaties and forced resettlement by the state and federal government, the tribes re-organized into sovereign tribal governments. Today, the tribal governments are divided into 11 semi-autonomous reservations that negotiate with the U.S. and the state on a bilateral basis: Four Dakota Mdewakanton communities: Prairie Island Indian Community Shakopee Mdewakanton Sioux Community Lower Sioux Indian Reservation Upper Sioux CommunityPejuhutazizi Oyate Seven Anishinaabe reservations: Bois Forte Band of Chippewa Fond du Lac Band of Lake Superior Chippewa Grand Portage Band of Chippewa Leech Lake Band of Ojibwe Mille Lacs Band of Ojibwe White Earth Band of Ojibwe Red Lake Band of Chippewa The first six of the Anishinaabe bands compose the Minnesota Chippewa Tribe, the collective federally recognized tribal government of the Bois Forte, Fond du Lac, Grand Portage, Leech Lake, Mille Lacs, and White Earth reservations. Politics Minnesota is known for a politically active citizenry, and populism has been a long-standing force among the state's political parties. Minnesota has a consistently high voter turnout. In the 2008 U.S. presidential election, 78.2% of eligible Minnesotans votedthe highest percentage of any U.S. stateversus the national average of 61.2%. That figure was surpassed in 2020, when 79.96% of registered voters participated in the general election. Voters can register on election day at their polling places with evidence of residency. Hubert Humphrey brought national attention to the state with his address at the 1948 Democratic National Convention. Minnesotans have consistently cast their Electoral College votes for Democratic presidential candidates since 1976, longer than any other state. Minnesota is the only state in the nation that did not vote for Ronald Reagan in either of his presidential runs. Minnesota has gone for the Democratic Party in every presidential election since 1960, with the exception of 1972, when it was carried by Republican Richard Nixon. Both the Democratic and Republican parties have major-party status in Minnesota, but its state-level Democratic party has a different name, officially known as the Minnesota Democratic-Farmer-Labor Party (DFL). It was formed out of a 1944 alliance of the Minnesota Democratic and Farmer-Labor parties. The state has had active third-party movements. The Reform Party, now the Independence Party, was able to elect former mayor of Brooklyn Park and professional wrestler Jesse Ventura to the governorship in 1998. The Independence Party has received enough support to keep major-party status. The Green Party, while no longer having major-party status, has a large presence in municipal government, notably in Minneapolis and Duluth, where it competes directly with the DFL party for local offices. Major-party status in Minnesota (which grants state funding for elections) is reserved to parties whose candidates receive five percent or more of the vote in any statewide election (e.g., governor, secretary of state, U.S. president). The state's U.S. Senate seats have generally been split since the early 1990s and in the 108th and 109th Congresses, Minnesota's congressional delegation was split, with four representatives and one senator from each party. In the 2006 mid-term election, Democrats were elected to all state offices, except governor and lieutenant governor, where Republicans Tim Pawlenty and Carol Molnau narrowly won reelection. The DFL posted double-digit gains in both houses of the legislature, elected Amy Klobuchar to the U.S. Senate, and increased the party's U.S. House caucus by one. Keith Ellison (DFL) was elected as the first African American U.S. Representative from Minnesota, as well as the first Muslim elected to Congress nationwide. In 2008, DFLer and former comedian and radio talk show host Al Franken defeated incumbent Republican Norm Coleman in the U.S. Senate race by 312 votes out of three million cast. In the 2010 election, Republicans took control of both chambers of the Minnesota legislature for the first time in 38 years and, with Mark Dayton's election, the DFL party took the governor's office for the first time in 20 years. Two years later, the DFL regained control of both houses, and with Dayton in office, the party had same-party control of both the legislative and executive branches for the first time since 1990. Two years later, the Republicans regained control of the Minnesota House, and in 2016, the GOP also regained control of the State Senate. In 2018, the DFL retook control of the Minnesota House, while electing DFLer Tim Walz as Governor. In a 2020 study, Minnesota was ranked as the 15th easiest state for citizens to vote in. Media The Twin Cities area is the fifteenth largest media market in the United States, as ranked by Nielsen Media Research. The state's other top markets are Fargo–Moorhead (118th nationally), Duluth–Superior (137th), Rochester–Mason City–Austin (152nd), and Mankato (200th). Broadcast television in Minnesota and the Upper Midwest started on April 27, 1948, when KSTP-TV began broadcasting. Hubbard Broadcasting, which owns KSTP, is now the only locally owned television company in Minnesota. Twin Cities CBS station WCCO-TV and FOX station KMSP-TV are owned-and-operated by their respective networks. There are 39 analog broadcast stations and 23 digital channels broadcast over Minnesota. The four largest daily newspapers are the Star Tribune in Minneapolis, the Pioneer Press in Saint Paul, the Duluth News Tribune in Duluth, and the Post-Bulletin in Rochester. The Minnesota Daily is the largest student-run newspaper in the U.S. Sites offering daily news on the Web include The UpTake, MinnPost, the Twin Cities Daily Planet, business news site Finance and Commerce and Washington D.C.-based Minnesota Independent. Weeklies including City Pages and monthly publications such as Minnesota Monthly are available. Two of the largest public radio networks, Minnesota Public Radio (MPR) and Public Radio International (PRI), are based in the state. MPR has the largest audience of any regional public radio network in the nation, broadcasting on 46 radio stations as of 2019. PRI weekly provides more than 400 hours of programming to almost 800 affiliates. The state's oldest radio station, KUOM-AM, was launched in 1922 and is among the 10-oldest radio stations in the United States. The University of Minnesota-owned station is still on the air, and since 1993 broadcasts a college rock format. Sports, recreation and tourism Minnesota has an active program of organized amateur and professional sports. Tourism has become an important industry, especially in the Lake region. In the North Country, what had been an industrial area focused on mining and timber has largely been transformed into a vacation destination. Popular interest in the environment and environmentalism, added to traditional interests in hunting and fishing, has attracted a large urban audience within driving range. Organized sports Minnesota has professional men's teams in all major sports. The Minnesota Vikings have played in the National Football League since their admission as an expansion franchise in 1961. They played in Metropolitan Stadium from 1961 through 1981 and in the Hubert H. Humphrey Metrodome from 1982 until its demolition after the 2013 season for the construction of the team's new home, U.S. Bank Stadium. The Vikings' current stadium hosted Super Bowl LII in February 2018. Super Bowl XXVI was played in the Metrodome in 1992. The Vikings have advanced to the Super Bowl Super Bowl IV, Super Bowl VIII, Super Bowl IX, and Super Bowl XI, losing all four games to their AFC/AFL opponent The Minnesota Twins have played in the Major League Baseball in the Twin Cities since 1961. The Twins began play as the original Washington Senators, a founding member of the American League in 1901, relocating to Minnesota in 1961. The Twins won the 1987 and 1991 World Series in seven-game matches where the home team was victorious in all games. The Twins also advanced to the 1965 World Series, where they lost to the Los Angeles Dodgers in seven games. The team has played at Target Field since 2010. The Minneapolis Lakers of the National Basketball Association played in the Minneapolis Auditorium from 1947 to 1960, after which they relocated to Los Angeles. The Minnesota Timberwolves joined the NBA in 1989, and have played in Target Center since 1990. The National Hockey League's Minnesota Wild play in St. Paul's Xcel Energy Center, and reached 300 consecutive sold-out games on January 16, 2008. Previously, the Minnesota North Stars competed in NHL from 1967 to 1993, which played in and lost the 1981 and 1991 Stanley Cup Finals. Minnesota United FC joined Major League Soccer as an expansion team in 2017, having played in the lower-division North American Soccer League from 2010 to 2016. The team plays at Allianz Field in St. Paul. Previous professional soccer teams have included the Minnesota Kicks, which played at Metropolitan Stadium from 1976 to 1981, and the Minnesota Strikers from 1984 to 1988. Minnesota also has minor-league professional sports teams. The Minnesota Swarm of the National Lacrosse League played at the Xcel Energy Center until the team moved to Georgia in 2015. The St. Paul Saints, who play at CHS Field in St. Paul, are the Triple-A minor league affiliate of the Minnesota Twins. Professional women's sports include the Minnesota Lynx of the Women's National Basketball Association, winners of the 2011, 2013, 2015, and 2017 WNBA Championships, the Minnesota Lightning of the United Soccer Leagues W-League, the Minnesota Vixen of the Independent Women's Football League, the Minnesota Valkyrie of the Legends Football League, and the Minnesota Whitecaps of the National Women's Hockey League. The Twin Cities campus of the University of Minnesota is a National Collegiate Athletic Association (NCAA) Division I school competing in the Big Ten Conference. Four additional schools in the state compete in NCAA Division I ice hockey: the University of Minnesota Duluth; Minnesota State University, Mankato; St. Cloud State University and Bemidji State University. There are nine NCAA Division II colleges in the Northern Sun Intercollegiate Conference, and twenty NCAA Division III colleges in the Minnesota Intercollegiate Athletic Conference and Upper Midwest Athletic Conference. Minneapolis has hosted the NCAA Men's Division I Basketball Championship in 1951, 1992, 2001, and 2019. The Hazeltine National Golf Club has hosted the U.S. Open, U.S. Women's Open, U.S. Senior Open and PGA Championship. The course also hosted the Ryder Cup in the fall of 2016, when it became one of two courses in the U.S. to host all major golf competitions. The Ryder Cup is scheduled to return in 2028. Interlachen Country Club has hosted the U.S. Open, U.S. Women's Open, and Solheim Cup. Winter Olympic Games medalists from the state include twelve of the twenty members of the gold medal 1980 ice hockey team (coached by Minnesota native Herb Brooks) and the bronze medalist U.S. men's curling team in the 2006 Winter Olympics. Swimmer Tom Malchow won an Olympic gold medal in the 2000 Summer games and a silver medal in 1996. Grandma's Marathon is run every summer along the scenic North Shore of Lake Superior, and the Twin Cities Marathon winds around lakes and the Mississippi River during the peak of the fall color season. Farther north, Eveleth is the location of the United States Hockey Hall of Fame. Outdoor recreation Minnesotans participate in high levels of physical activity, and many of these activities are outdoors. The strong interest of Minnesotans in environmentalism has been attributed to the popularity of these pursuits. In the warmer months, these activities often involve water. Weekend and longer trips to family cabins on Minnesota's numerous lakes are a way of life for many residents. Activities include water sports such as water skiing, which originated in the state, boating, canoeing, and fishing. More than 36% of Minnesotans fish, second only to Alaska. Fishing does not cease when the lakes freeze; ice fishing has been around since the arrival of early Scandinavian immigrants. Minnesotans have learned to embrace their long, harsh winters in ice sports such as skating, hockey, curling, and broomball, and snow sports such as cross-country skiing, alpine skiing, luge, snowshoeing, and snowmobiling. Minnesota is the only U.S. state where bandy is played. State and national forests and the 72 state parks are used year-round for hunting, camping, and hiking. There are almost of snowmobile trails statewide. Minnesota has more miles of bike trails than any other state, and a growing network of hiking trails, including the Superior Hiking Trail in the northeast. Many hiking and bike trails are used for cross-country skiing during the winter. See also Index of Minnesota-related articles Outline of Minnesota Notes References External links Culture and history Minnesota Historical Society Minnesota Place Names Minnesota Reflections Minnesota State Guide from the Library of Congress General Government Indian Affairs Council, State of Minnesota Prairie Island Indian Community Shakopee Mdewakanton Sioux Community Lower Sioux Indian Community The Upper Sioux Community Pejuhutazizi Oyate Minnesota Chippewa Tribe Bois Forte Band of Chippewa Fond du Lac Band of Lake Superior Chippewa Grand Portage Band of Lake Superior Chippewa Leech Lake Band of Ojibwe Mille Lacs Band of Ojibwe White Earth Indian Reservation Tribal Council Red Lake Band of Chippewa Indians Maps and demographics Minnesota State Demographic Center State Facts from USDA Minnesota State Highway Map Minnesota at Open Street Map Tourism and recreation Explore Minnesota Minnesota Department of Natural Resources States and territories established in 1858 States of the United States Dakota toponyms Midwestern United States 1858 establishments in the United States Contiguous United States

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https://en.wikipedia.org/wiki/Missouri%20River

Missouri River

The Missouri River is the longest river in North America. Rising in the Rocky Mountains of the Eastern Centennial Mountains of Southwestern Montana, the Missouri flows east and south for before entering the Mississippi River north of St. Louis, Missouri. The river drains a sparsely populated, semi-arid watershed of more than 500,000 square miles (1,300,000 km2), which includes parts of ten U.S. states and two Canadian provinces. Although nominally considered a tributary of the Mississippi, the Missouri River above the confluence is much longer than the Mississippi above the confluence and carries a comparable volume of water. When combined with the lower Mississippi River, it forms the world's fourth longest river system. For over 12,000 years, people have depended on the Missouri River and its tributaries as a source of sustenance and transportation. More than ten major groups of Native Americans populated the watershed, most leading a nomadic lifestyle and dependent on enormous bison herds that roamed through the Great Plains. The first Europeans encountered the river in the late seventeenth century, and the region passed through Spanish and French hands before becoming part of the United States through the Louisiana Purchase. The Missouri River was one of the main routes for the westward expansion of the United States during the 19th century. The growth of the fur trade in the early 19th century laid much of the groundwork as trappers explored the region and blazed trails. Pioneers headed west en masse beginning in the 1830s, first by covered wagon, then by the growing numbers of steamboats that entered service on the river. Conflict between settlers and Native Americans in the watershed led to some of the most longstanding and violent of the American Indian Wars. During the 20th century, the Missouri River basin was extensively developed for irrigation, flood control, and the generation of hydroelectric power. Fifteen dams impound the main stem of the river, with hundreds more on tributaries. Meanders have been cut off and the river channelized to improve navigation, reducing its length by almost from pre-development times. Although the lower Missouri valley is now a populous and highly productive agricultural and industrial region, heavy development has taken its toll on wildlife and fish populations as well as water quality. Course From the Rocky Mountains, three streams rise to form the headwaters of the Missouri River: The longest source stream begins near Brower's Spring in southwest Montana, above sea level on the southeastern slopes of Mount Jefferson in the Centennial Mountains. From there it flows west then north; runs first in Hell Roaring Creek then west into the Red Rock; swings northeast to become the Beaverhead River; and finally joins with the Big Hole to form the Jefferson River. The Firehole River, which originates in northwest Wyoming at Yellowstone National Park's Madison Lake, joins with the Gibbon River to form the Madison River. The Gallatin River flows out of Gallatin Lake which is also in Yellowstone National Park. The Missouri River officially starts at the confluence of the Jefferson and Madison in Missouri Headwaters State Park near Three Forks, Montana, and is joined by the Gallatin a mile (1.6 km) downstream. It then passes through Canyon Ferry Lake, a reservoir west of the Big Belt Mountains. Issuing from the mountains near Cascade, the river flows northeast to the city of Great Falls, where it drops over the Great Falls of the Missouri, a series of five substantial waterfalls. It then winds east through a scenic region of canyons and badlands known as the Missouri Breaks, receiving the Marias River from the west then widening into the Fort Peck Lake reservoir a few miles above the confluence with the Musselshell River. Farther on, the river passes through the Fort Peck Dam, and immediately downstream, the Milk River joins from the north. Flowing eastward through the plains of eastern Montana, the Missouri receives the Poplar River from the north before crossing into North Dakota where the Yellowstone River, its greatest tributary by volume, joins from the southwest. At the confluence, the Yellowstone is actually the larger river. The Missouri then meanders east past Williston and into Lake Sakakawea, the reservoir formed by Garrison Dam. Below the dam the Missouri receives the Knife River from the west and flows south to Bismarck, the capital of North Dakota, where the Heart River joins from the west. It slows into the Lake Oahe reservoir just before the Cannonball River confluence. While it continues south, eventually reaching Oahe Dam in South Dakota, the Grand, Moreau and Cheyenne Rivers all join the Missouri from the west. The Missouri makes a bend to the southeast as it winds through the Great Plains, receiving the Niobrara River and many smaller tributaries from the southwest. It then proceeds to form the boundary of South Dakota and Nebraska and is joined by the James River from the north. At Sioux City the Big Sioux River comes in from the north, after which the Missouri forms the Iowa–Nebraska boundary. It flows south to the city of Omaha where it receives its longest tributary, the Platte River, from the west. Downstream, it begins to define the border between the states of Nebraska and Missouri, then flows between the states of Missouri and Kansas. The Missouri swings east at Kansas City, where the Kansas River enters from the west, and so on into north-central Missouri. To the east of Kansas City, the Missouri receives, on the left side, the Grand River. It passes south of Columbia and receives the Osage and Gasconade Rivers from the south downstream of Jefferson City. The river then rounds the northern side of St. Louis to join the Mississippi River on the border between Missouri and Illinois. Watershed With a drainage basin spanning , the Missouri River's catchment encompasses nearly one-sixth of the area of the United States or just over five percent of the continent of North America. Comparable to the size of the Canadian province of Quebec, the watershed encompasses most of the central Great Plains, stretching from the Rocky Mountains in the west to the Mississippi River Valley in the east and from the southern extreme of western Canada to the border of the Arkansas River watershed. Compared with the Mississippi River above their confluence, the Missouri is twice as long and drains an area three times as large. The Missouri accounts for 45 percent of the annual flow of the Mississippi past St. Louis, and as much as 70 percent in certain droughts. In 1990, the Missouri River watershed was home to about 12 million people. This included the entire population of the U.S. state of Nebraska, parts of the U.S. states of Colorado, Iowa, Kansas, Minnesota, Missouri, Montana, North Dakota, South Dakota, and Wyoming, and small southern portions of the Canadian provinces of Alberta and Saskatchewan. The watershed's largest city is Denver, Colorado, with a population of more than six hundred thousand. Denver is the main city of the Front Range Urban Corridor whose cities had a combined population of over four million in 2005, making it the largest metropolitan area in the Missouri River basin. Other major population centers – mostly in the watershed's southeastern portion – include Omaha, Nebraska, north of the confluence of the Missouri and Platte Rivers; Kansas City, Missouri – Kansas City, Kansas, at the confluence of the Missouri with the Kansas River; and the St. Louis metropolitan area, south of the Missouri River just below the latter's mouth, on the Mississippi. In contrast, the northwestern part of the watershed is sparsely populated. However, many northwestern cities, such as Billings, Montana, are among the fastest growing in the Missouri basin. With more than under the plow, the Missouri River watershed includes roughly one-fourth of all the agricultural land in the United States, providing more than a third of the country's wheat, flax, barley, and oats. However, only of farmland in the basin is irrigated. A further of the basin is devoted to the raising of livestock, mainly cattle. Forested areas of the watershed, mostly second-growth, total about . Urban areas, on the other hand, comprise less than of land. Most built-up areas are along the main stem and a few major tributaries, including the Platte and Yellowstone Rivers. Elevations in the watershed vary widely, ranging from just over at the Missouri's mouth to the summit of Mount Lincoln in central Colorado. The river drops from Brower's Spring, the farthest source. Although the plains of the watershed have extremely little local vertical relief, the land rises about 10 feet per mile (1.9 m/km) from east to west. The elevation is less than at the eastern border of the watershed, but is over above sea level in many places at the base of the Rockies. The Missouri's drainage basin has highly variable weather and rainfall patterns, Overall, the watershed is defined by a Continental climate with warm, wet summers and harsh, cold winters. Most of the watershed receives an average of of precipitation each year. However, the western most portions of the basin in the Rockies as well as southeastern regions in Missouri may receive as much as . The vast majority of precipitation occurs in summer in most of the lower and middle basin, although the upper basin is known for short-lived but intense summer thunderstorms such as the one which produced the 1972 Black Hills flood through Rapid City, South Dakota. Winter temperatures in the northern and western portions of the basin typically drop to -20 °F (-29 °C) or lower every winter with extremes as low as , while summer highs occasionally exceed 100 °F (38 °C) in all areas except the higher elevations of Montana, Wyoming and Colorado. Extreme maximums have exceeded 115 °F (46 °C) in all the states and provinces in the basin - almost all prior to 1960. As one of the continent's most significant river systems, the Missouri's drainage basin borders on many other major watersheds of the United States and Canada. The Continental Divide, running along the spine of the Rocky Mountains, forms most of the western border of the Missouri watershed. The Clark Fork and Snake River, both part of the Columbia River basin, drain the area west of the Rockies in Montana, Idaho and western Wyoming. The Columbia, Missouri and Colorado River watersheds meet at Three Waters Mountain in Wyoming's Wind River Range. South of there, the Missouri basin is bordered on the west by the drainage of the Green River, a tributary of the Colorado, then on the south by the mainstem of the Colorado. Both the Colorado and Columbia Rivers flow to the Pacific Ocean. However, a large endorheic drainage called the Great Divide Basin exists between the Missouri and Green watersheds in western Wyoming. This area is sometimes counted as part of the Missouri River watershed, even though its waters do not flow to either side of the Continental Divide. To the north, the much lower Laurentian Divide separates the Missouri River watershed from those of the Oldman River, a tributary of the South Saskatchewan River, as well as the Souris, Sheyenne, and smaller tributaries of the Red River of the North. All of these streams are part of Canada's Nelson River drainage basin, which empties into Hudson Bay. There are also several large endorheic basins between the Missouri and Nelson watersheds in southern Alberta and Saskatchewan. The Minnesota and Des Moines Rivers, tributaries of the upper Mississippi, drain most of the area bordering the eastern side of the Missouri River basin. Finally, on the south, the Ozark Mountains and other low divides through central Missouri, Kansas and Colorado separate the Missouri watershed from those of the White River and Arkansas River, also tributaries of the Mississippi River. Major tributaries Over 95 significant tributaries and hundreds of smaller ones feed the Missouri River, with most of the larger ones coming in as the river draws close to the mouth. Most rivers and streams in the Missouri River basin flow from west to east, following the incline of the Great Plains; however, some eastern tributaries such as the James, Big Sioux and Grand River systems flow from north to south. The Missouri's largest tributaries by runoff are the Yellowstone in Montana and Wyoming, the Platte in Wyoming, Colorado, and Nebraska, and the Kansas–Republican/Smoky Hill and Osage in Kansas and Missouri. Each of these tributaries drains an area greater than or has an average discharge greater than . The Yellowstone River has the highest discharge, even though the Platte is longer and drains a larger area. In fact, the Yellowstone's flow is about – accounting for sixteen percent of total runoff in the Missouri basin and nearly double that of the Platte. On the other end of the scale is the tiny Roe River in Montana, which at long is one of the world's shortest rivers. The table on the right lists the ten longest tributaries of the Missouri, along with their respective catchment areas and flows. Length is measured to the hydrologic source, regardless of naming convention. The main stem of the Kansas River, for example, is long. However, including the longest headwaters tributaries, the Republican River and the Arikaree River, brings the total length to . Similar naming issues are encountered with the Platte River, whose longest tributary, the North Platte River, is more than twice as long as its mainstream. The Missouri's headwaters above Three Forks extend much farther upstream than the main stem. Measured to the farthest source at Brower's Spring, the Jefferson River is long. Thus measured to its highest headwaters, the Missouri River stretches for . When combined with the lower Mississippi, the Missouri and its headwaters form part of the fourth-longest river system in the world, at . Discharge By discharge, the Missouri is the ninth largest river of the United States, after the Mississippi, St. Lawrence, Ohio, Columbia, Niagara, Yukon, Detroit, and St. Clair. The latter two, however, are sometimes considered part of a strait between Lake Huron and Lake Erie. Among rivers of North America as a whole, the Missouri is thirteenth largest, after the Mississippi, Mackenzie, St. Lawrence, Ohio, Columbia, Niagara, Yukon, Detroit, St. Clair, Fraser, Slave, and Koksoak. As the Missouri drains a predominantly semi-arid region, its discharge is much lower and more variable than other North American rivers of comparable length. Before the construction of dams, the river flooded twice each year – once in the "April Rise" or "Spring Fresh", with the melting of snow on the plains of the watershed, and in the "June Rise", caused by snowmelt and summer rainstorms in the Rocky Mountains. The latter was far more destructive, with the river increasing to over ten times its normal discharge in some years. The Missouri's discharge is affected by over 17,000 reservoirs with an aggregate capacity of some . By providing flood control, the reservoirs dramatically reduce peak flows and increase low flows. Evaporation from reservoirs significantly reduces the river's runoff, causing an annual loss of over from mainstem reservoirs alone. The United States Geological Survey operates fifty-one stream gauges along the Missouri River. The river's average discharge at Bismarck, from the mouth, is . This is from a drainage area of , or 35% of the total river basin. At Kansas City, from the mouth, the river's average flow is . The river here drains about , representing about 91% of the entire basin. The lowermost gage with a period of record greater than fifty years is at Hermann, Missouri – upstream of the mouth of the Missouri – where the average annual flow was from 1897 to 2010. About , or 98.7% of the watershed, lies above Hermann. The highest annual mean was in 1993, and the lowest was in 2006. Extremes of the flow vary even further. The largest discharge ever recorded was over on July 31, 1993, during a historic flood. The lowest, a mere – caused by the formation of an ice dam – was measured on December 23, 1963. Geology The Rocky Mountains of southwestern Montana at the headwaters of the Missouri River first rose in the Laramide Orogeny, a mountain-building episode that occurred from around 70 to 45 million years ago (the end of the Mesozoic through the early Cenozoic). This orogeny uplifted Cretaceous rocks along the western side of the Western Interior Seaway, a vast shallow sea that stretched from the Arctic Ocean to the Gulf of Mexico, and deposited the sediments that now underlie much of the drainage basin of the Missouri River. This Laramide uplift caused the sea to retreat and laid the framework for a vast drainage system of rivers flowing from the Rocky and Appalachian Mountains, the predecessor of the modern-day Mississippi watershed. The Laramide Orogeny is essential to modern Missouri River hydrology, as snow and ice melt from the Rockies provide the majority of the flow in the Missouri and its tributaries. The Missouri and many of its tributaries cross the Great Plains, flowing over or cutting into the Ogallala Group and older mid-Cenozoic sedimentary rocks. The lowest major Cenozoic unit, the White River Formation, was deposited between roughly 35 and 29 million years ago and consists of claystone, sandstone, limestone, and conglomerate. Channel sandstones and finer-grained overbank deposits of the fluvial Arikaree Group were deposited between 29 and 19 million years ago. The Miocene-age Ogallala and the slightly younger Pliocene-age Broadwater Formation deposited atop the Arikaree Group, and are formed from material eroded off of the Rocky Mountains during a time of increased generation of topographic relief; these formations stretch from the Rocky Mountains nearly to the Iowa border and give the Great Plains much of their gentle but persistent eastward tilt, and also constitute a major aquifer. Immediately before the Quaternary Ice Age, the Missouri River was likely split into three segments: an upper portion that drained northwards into Hudson Bay, and middle and lower sections that flowed eastward down the regional slope. As the Earth plunged into the Ice Age, a pre-Illinoian (or possibly the Illinoian) glaciation diverted the Missouri River southeastward toward its present confluence with the Mississippi and caused it to integrate into a single river system that cuts across the regional slope. In western Montana, the Missouri River is thought to have once flowed north then east around the Bear Paw Mountains. Sapphires are found in some spots along the river in western Montana. Advances of the continental ice sheets diverted the river and its tributaries, causing them to pool up into large temporary lakes such as Glacial Lakes Great Falls, Musselshell and others. As the lakes rose, the water in them often spilled across adjacent local drainage divides, creating now-abandoned channels and coulees including the Shonkin Sag, long. When the glaciers retreated, the Missouri flowed in a new course along the south side of the Bearpaws, and the lower part of the Milk River tributary took over the original main channel. The Missouri's nickname, the "Big Muddy", was inspired by its enormous loads of sediment or silt – some of the largest of any North American river. In its pre-development state, the river transported some per year. The construction of dams and levees has drastically reduced this to in the present day. Much of this sediment is derived from the river's floodplain, also called the meander belt; every time the river changed course, it would erode tons of soil and rocks from its banks. However, damming and channeling the river has kept it from reaching its natural sediment sources along most of its course. Reservoirs along the Missouri trap roughly of sediment each year. Despite this, the river still transports more than half the total silt that empties into the Gulf of Mexico; the Mississippi River Delta, formed by sediment deposits at the mouth of the Mississippi, constitutes a majority of sediments carried by the Missouri. First people Archaeological evidence, especially in Missouri, suggests that human beings first inhabited the watershed of the Missouri River between 10,000 and 12,000 years ago at the end of the Pleistocene. During the end of the last glacial period, large migration of humans were taking place, such as those via the Bering land bridge between the Americas and Eurasia. Over centuries, the Missouri River formed one of these main migration paths. Most migratory groups that passed through the area eventually settled in the Ohio Valley and the lower Mississippi River Valley, but many, including the Mound builders, stayed along the Missouri, becoming the ancestors of the later Indigenous peoples of the Great Plains. Indigenous peoples of North America who have lived along the Missouri have historically had access to ample food, water, and shelter. Many migratory animals naturally inhabit the plains area. Before they were hunted by colonists and Native Americans, these animals, such as the buffalo, provided meat, clothing, and other everyday items; there were also great riparian areas in the river's floodplain that provided habitat for herbs and other staple foods. No written records from the tribes and peoples of the pre-European contact period exist because they did not yet use writing. According to the writings of early colonists, some of the major tribes along the Missouri River included the Otoe, Missouria, Omaha, Ponca, Brulé, Lakota, Arikara, Hidatsa, Mandan, Assiniboine, Gros Ventres and Blackfeet. In this pre-colonial and early-colonial era, the Missouri river was used as a path of trade and transport, and the river and its tributaries often formed territorial boundaries. Most of the Indigenous peoples in the region at that time had semi-nomadic cultures, with many tribes maintaining different summer and winter camps. However, the center of Native American wealth and trade lay along the Missouri River in the Dakotas region on its great bend south. A large cluster of walled Mandan, Hidatsa and Arikara villages situated on bluffs and islands of the river was home to thousands, and later served as a market and trading post used by early French and British explorers and fur traders. Following the introduction of horses to Missouri River tribes, possibly from feral European-introduced populations, Natives' way of life changed dramatically. The use of the horse allowed them to travel greater distances, and thus facilitated hunting, communications and trade. Once, tens of millions of American bison (commonly called buffalo), one of the keystone species of the Great Plains and the Ohio Valley, roamed the plains of the Missouri River basin. Most Native American nations in the basin relied heavily on the bison as a food source, and their hides and bones served to create other household items. In time, the species came to benefit from the indigenous peoples' periodic controlled burnings of the grasslands surrounding the Missouri to clear out old and dead growth. The large bison population of the region gave rise to the term great bison belt, an area of rich annual grasslands that extended from Alaska to Mexico along the eastern flank of the Continental Divide. However, after the arrival of Europeans in North America, both the bison and the Native Americans saw a rapid decline in population. Massive over-hunting for sport by colonists eliminated bison populations east of the Mississippi River by 1833 and reduced the numbers in the Missouri basin to a mere few hundred. Foreign diseases brought by settlers, such as smallpox, raged across the land, decimating Native American populations. Left without their primary source of sustenance, many of the remaining indigenous people were forced onto resettlement areas and reservations, often at gunpoint. Early European explorers In May 1673, the French-Canadian explorer Louis Jolliet and the French explorer Jacques Marquette left the settlement of St. Ignace on Lake Huron and traveled down the Wisconsin and Mississippi Rivers, aiming to reach the Pacific Ocean. In late June, Jolliet and Marquette became the first documented European discoverers of the Missouri River, which according to their journals was in full flood. "I never saw anything more terrific," Jolliet wrote, "a tangle of entire trees from the mouth of the Pekistanoui [Missouri] with such impetuosity that one could not attempt to cross it without great danger. The commotion was such that the water was made muddy by it and could not clear itself." They recorded Pekitanoui or Pekistanoui as the local name for the Missouri. However, the party never explored the Missouri beyond its mouth, nor did they linger in the area. In addition, they later learned that the Mississippi drained into the Gulf of Mexico and not the Pacific as they had originally presumed; the expedition turned back about short of the Gulf at the confluence of the Arkansas River with the Mississippi. In 1682, France expanded its territorial claims in North America to include land on the western side of the Mississippi River, which included the lower portion of the Missouri. However, the Missouri itself remained formally unexplored until Étienne de Veniard, Sieur de Bourgmont commanded an expedition in 1714 that reached at least as far as the mouth of the Platte River. It is unclear exactly how far Bourgmont traveled beyond there; he described the blond-haired Mandans in his journals, so it is likely he reached as far as their villages in present-day North Dakota. Later that year, Bourgmont published The Route To Be Taken To Ascend The Missouri River, the first known document to use the name "Missouri River"; many of the names he gave to tributaries, mostly for the native tribes that lived along them, are still in use today. The expedition's discoveries eventually found their way to cartographer Guillaume Delisle, who used the information to create a map of the lower Missouri. In 1718, Jean-Baptiste Le Moyne, Sieur de Bienville requested that the French government bestow upon Bourgmont the Cross of St. Louis because of his "outstanding service to France". Bourgmont had in fact been in trouble with the French colonial authorities since 1706, when he deserted his post as commandant of Fort Detroit after poorly handling an attack by the Ottawa that resulted in thirty-one deaths. However, his reputation was enhanced in 1720 when the Pawnee – who had earlier been befriended by Bourgmont – massacred the Spanish Villasur expedition near present-day Columbus, Nebraska on the Missouri River, temporarily ending Spanish encroachment on French Louisiana. Bourgmont established Fort Orleans, the first European settlement of any kind on the Missouri River, near present-day Brunswick, Missouri, in 1723. The following year Bourgmont led an expedition to enlist Comanche support against the Spanish, who continued to show interest in taking over the Missouri. In 1725 Bourgmont brought the chiefs of several Missouri River tribes to visit France. There he was raised to the rank of nobility and did not accompany the chiefs back to North America. Fort Orleans was either abandoned or its small contingent massacred by Native Americans in 1726. The French and Indian War erupted when territorial disputes between France and Great Britain in North America reached a head in 1754. By 1763, France's army in North America had been defeated by a combined British-American force and was forced to sue for peace. In the Treaty of Paris, France ceded its Canadian possessions to the British, gaining Louisiana from the Spanish in return. Initially, the Spanish did not extensively explore the Missouri and let French traders continue their activities under license. However, this ended after news of incursions by trappers working for the Hudson's Bay Company in the upper Missouri River watershed was brought back following an expedition by Jacques D'Eglise in the early 1790s. In 1795 the Spanish chartered the Company of Discoverers and Explorers of the Missouri, popularly referred to as the "Missouri Company", and offered a reward for the first person to reach the Pacific Ocean via the Missouri. In 1794 and 1795 expeditions led by Jean Baptiste Truteau and Antoine Simon Lecuyer de la Jonchšre did not even make it as far north as the Mandan villages in central North Dakota. Arguably the most successful of the Missouri Company expeditions was that of James MacKay and John Evans. The two set out along the Missouri, and established Fort Charles about south of present-day Sioux City as a winter camp in 1795. At the Mandan villages in North Dakota, they forcefully expelled several British traders, and while talking to the populace they pinpointed the location of the Yellowstone River, which was called Roche Jaune ("Yellow Rock") by the French. Although MacKay and Evans failed to accomplish their original goal of reaching the Pacific, they did create the first accurate map of the upper Missouri River. In 1795, the young United States and Spain signed Pinckney's Treaty, which recognized American rights to navigate the Mississippi River and store goods for export in New Orleans. Three years later, Spain revoked the treaty and in 1800 secretly returned Louisiana to Napoleonic France in the Third Treaty of San Ildefonso. This transfer was so secret that the Spanish continued to administer the territory. In 1801, Spain restored rights to use the Mississippi and New Orleans to the United States. Fearing that the cutoffs could occur again, President Thomas Jefferson proposed to buy the port of New Orleans from France for $10 million. Instead, faced with a debt crisis, Napoleon offered to sell the entirety of Louisiana, including the Missouri River, for $15 million – amounting to less than 3¢ per acre. The deal was signed in 1803, doubling the size of the United States with the acquisition of the Louisiana Territory. In 1803, Jefferson instructed Meriwether Lewis to explore the Missouri and search for a water route to the Pacific Ocean. By then, it had been discovered that the Columbia River system, which drains into the Pacific, had a similar latitude as the headwaters of the Missouri River, and it was widely believed that a connection or short portage existed between the two. However, Spain balked at the takeover, citing that they had never formally returned Louisiana to the French. Spanish authorities warned Lewis not to take the journey and forbade him from seeing the MacKay and Evans map of the Missouri, although Lewis eventually managed to gain access to it. Meriwether Lewis and William Clark began their famed expedition in 1804 with a party of thirty-three people in three boats. Although they became the first Europeans to travel the entire length of the Missouri and reach the Pacific Ocean via the Columbia, they found no trace of the Northwest Passage. The maps made by Lewis and Clark, especially those of the Pacific Northwest region, provided a foundation for future explorers and emigrants. They also negotiated relations with numerous Native American tribes and wrote extensive reports on the climate, ecology and geology of the region. Many present-day names of geographic features in the upper Missouri basin originated from their expedition. American frontier Fur trade As early as the 18th century, fur trappers entered the extreme northern basin of the Missouri River in the hopes of finding populations of beaver and river otter, the sale of whose pelts drove the thriving North American fur trade. They came from many different places – some from the Canadian fur corporations at Hudson Bay, some from the Pacific Northwest (see also: Maritime fur trade), and some from the midwestern United States. Most did not stay in the area for long, as they failed to find significant resources. The first glowing reports of country rich with thousands of game animals came in 1806 when Meriwether Lewis and William Clark returned from their two-year expedition. Their journals described lands amply stocked with thousands of buffalo, beaver, and river otter; and also an abundant population of sea otters on the Pacific Northwest coast. In 1807, explorer Manuel Lisa organized an expedition which would lead to the explosive growth of the fur trade in the upper Missouri River country. Lisa and his crew traveled up the Missouri and Yellowstone Rivers, trading manufactured items in return for furs from local Native American tribes, and established a fort at the confluence of the Yellowstone and a tributary, the Bighorn, in southern Montana. Although the business started small, it quickly grew into a thriving trade. Lisa's men started construction of Fort Raymond, which sat on a bluff overlooking the confluence of the Yellowstone and Bighorn, in the fall of 1807. The fort would serve primarily as a trading post for bartering with the Native Americans for furs. This method was unlike that of the Pacific Northwest fur trade, which involved trappers hired by the various fur enterprises, namely Hudson's Bay. Fort Raymond was later replaced by Fort Lisa at the confluence of the Missouri and Yellowstone in North Dakota; a second fort also called Fort Lisa was built downstream on the Missouri River in Nebraska. In 1809 the St. Louis Missouri Fur Company was founded by Lisa in conjunction with William Clark and Pierre Choteau, among others. In 1828, the American Fur Company founded Fort Union at the confluence of the Missouri and Yellowstone Rivers. Fort Union gradually became the main headquarters for the fur trade in the upper Missouri basin. Fur trapping activities in the early 19th century encompassed nearly all of the Rocky Mountains on both the eastern and western slopes. Trappers of the Hudson's Bay Company, St. Louis Missouri Fur Company, American Fur Company, Rocky Mountain Fur Company, North West Company and other outfits worked thousands of streams in the Missouri watershed as well as the neighboring Columbia, Colorado, Arkansas, and Saskatchewan river systems. During this period, the trappers, also called mountain men, blazed trails through the wilderness that would later form the paths pioneers and settlers would travel by into the West. Transport of the thousands of beaver pelts required ships, providing one of the first large motives for river transport on the Missouri to start. As the 1830s drew to a close, the fur industry slowly began to die as silk replaced beaver fur as a desirable clothing item. By this time, also, the beaver population of streams in the Rocky Mountains had been decimated by intense hunting. Furthermore, frequent Native American attacks on trading posts made it dangerous for employees of the fur companies. In some regions, the industry continued well into the 1840s, but in others such as the Platte River valley, declines of the beaver population contributed to an earlier demise. The fur trade finally disappeared in the Great Plains around 1850, with the primary center of industry shifting to the Mississippi Valley and central Canada. Despite the demise of the once-prosperous trade, however, its legacy led to the opening of the American West and a flood of settlers, farmers, ranchers, adventurers, hopefuls, financially bereft, and entrepreneurs took their place. Settlers and pioneers The river roughly defined the American frontier in the 19th century, particularly downstream from Kansas City, where it takes a sharp eastern turn into the heart of the state of Missouri, an area known as the Boonslick. As first area settled by Europeans along the river it was largely populated by slave-owning southerners following the Boone's Lick Road. The major trails for the opening of the American West all have their starting points on the river, including the California, Mormon, Oregon, and Santa Fe trails. The first westward leg of the Pony Express was a ferry across the Missouri at St. Joseph, Missouri. Similarly, most emigrants arrived at the eastern terminus of the First Transcontinental Railroad via a ferry ride across the Missouri between Council Bluffs, Iowa, and Omaha. The Hannibal Bridge became the first bridge to cross the Missouri River in 1869, and its location was a major reason why Kansas City became the largest city on the river upstream from its mouth at St. Louis. True to the then-ideal of Manifest Destiny, over 500,000 people set out from the river town of Independence, Missouri to their various destinations in the American West from the 1830s to the 1860s. These people had many reasons to embark on this strenuous year-long journey – economic crisis, and later gold strikes including the California Gold Rush, for example. For most, the route took them up the Missouri to Omaha, Nebraska, where they would set out along the Platte River, which flows from the Rocky Mountains in Wyoming and Colorado eastward through the Great Plains. An early expedition led by Robert Stuart from 1812 to 1813 proved the Platte impossible to navigate by the dugout canoes they used, let alone the large sidewheelers and sternwheelers that would later ply the Missouri in increasing numbers. One explorer remarked that the Platte was "too thick to drink, too thin to plow". Nevertheless, the Platte provided an abundant and reliable source of water for the pioneers as they headed west. Covered wagons, popularly referred to as prairie schooners, provided the primary means of transport until the beginning of regular boat service on the river in the 1850s. During the 1860s, gold strikes in Montana, Colorado, Wyoming, and northern Utah attracted another wave of hopefuls to the region. Although some freight was hauled overland, most transport to and from the gold fields was done through the Missouri and Kansas Rivers, as well as the Snake River in western Wyoming and the Bear River in Utah, Idaho, and Wyoming. It is estimated that of the passengers and freight hauled from the Midwest to Montana, over 80 percent were transported by boat, a journey that took 150 days in the upstream direction. A route more directly west into Colorado lay along the Kansas River and its tributary the Republican River as well as pair of smaller Colorado streams, Big Sandy Creek and the South Platte River, to near Denver. The gold rushes precipitated the decline of the Bozeman Trail as a popular emigration route, as it passed through land held by often-hostile Native Americans. Safer paths were blazed to the Great Salt Lake near Corinne, Utah during the gold rush period, which led to the large-scale settlement of the Rocky Mountains region and eastern Great Basin. As settlers expanded their holdings into the Great Plains, they ran into land conflicts with Native American tribes. This resulted in frequent raids, massacres and armed conflicts, leading to the federal government creating multiple treaties with the Plains tribes, which generally involved establishing borders and reserving lands for the indigenous. As with many other treaties between the U.S. and Native Americans, they were soon broken, leading to huge wars. Over 1,000 battles, big and small, were fought between the U.S. military and Native Americans before the tribes were forced out of their land onto reservations. Conflicts between natives and settlers over the opening of the Bozeman Trail in the Dakotas, Wyoming and Montana led to Red Cloud's War, in which the Lakota and Cheyenne fought against the U.S. Army. The fighting resulted in a complete Native American victory. In 1868, the Treaty of Fort Laramie was signed, which "guaranteed" the use of the Black Hills, Powder River Country and other regions surrounding the northern Missouri River to Native Americans without white intervention. The Missouri River was also a significant landmark as it divides northeastern Kansas from western Missouri; pro-slavery forces from Missouri would cross the river into Kansas and spark mayhem during Bleeding Kansas, leading to continued tension and hostility even today between Kansas and Missouri. Another significant military engagement on the Missouri River during this period was the 1861 Battle of Boonville, which did not affect Native Americans but rather was a turning point in the American Civil War that allowed the Union to seize control of transport on the river, discouraging the state of Missouri from joining the Confederacy. However, the peace and freedom of the Native Americans did not last for long. The Great Sioux War of 1876–77 was sparked when American miners discovered gold in the Black Hills of western South Dakota and eastern Wyoming. These lands were originally set aside for Native American use by the Treaty of Fort Laramie. When the settlers intruded onto the lands, they were attacked by Native Americans. U.S. troops were sent to the area to protect the miners, and drive out the natives from the new settlements. During this bloody period, both the Native Americans and the U.S. military won victories in major battles, resulting in the loss of nearly a thousand lives. The war eventually ended in an American victory, and the Black Hills were opened to settlement. Native Americans of that region were relocated to reservations in Wyoming and southeastern Montana. Dam-building era In the late 19th and early 20th centuries, a great number of dams were built along the course of the Missouri, transforming 35 percent of the river into a chain of reservoirs. River development was stimulated by a variety of factors, first by growing demand for electricity in the rural northwestern parts of the basin, and by floods and droughts that plagued rapidly growing agricultural and urban areas along the lower Missouri River. Small, privately owned hydroelectric projects have existed since the 1890s, but the large flood-control and storage dams that characterize the middle reaches of the river today were not constructed until the 1950s. Between 1890 and 1940, five dams were built in the vicinity of Great Falls to generate power from the Great Falls of the Missouri, a chain of giant waterfalls formed by the river in its path through western Montana. Black Eagle Dam, built in 1891 on Black Eagle Falls, was the first dam of the Missouri. Replaced in 1926 with a more modern structure, the dam was little more than a small weir atop Black Eagle Falls, diverting part of the Missouri's flow into the Black Eagle power plant. The largest of the five dams, Ryan Dam, was built in 1913. The dam lies directly above the Big Falls, the largest waterfall of the Missouri. In the same period, several private establishments – most notably the Montana Power Company – began to develop the Missouri River above Great Falls and below Helena for power generation. A small run-of-the river structure completed in 1898 near the present site of Canyon Ferry Dam became the second dam built on the Missouri. This rock-filled timber crib dam generated seven and a half megawatts of electricity for Helena and the surrounding countryside. The nearby steel Hauser Dam was finished in 1907, but failed in 1908 because of structural deficiencies, causing catastrophic flooding all the way downstream past Craig. At Great Falls, a section of the Black Eagle Dam was dynamited to save nearby factories from inundation. Hauser was rebuilt in 1910 as a concrete gravity structure, and stands to this day. Holter Dam, about downstream of Helena, was the third hydroelectric dam built on this stretch of the Missouri River. When completed in 1918 by the Montana Power Company and the United Missouri River Power Company, its reservoir flooded the Gates of the Mountains, a limestone canyon which Meriwether Lewis described as "the most remarkable clifts that we have yet seen ... the tow[er]ing and projecting rocks in many places seem ready to tumble on us." In 1949, the U.S. Bureau of Reclamation (USBR) began construction on the modern Canyon Ferry Dam to provide flood control to the Great Falls area. By 1954, the rising waters of Canyon Ferry Lake submerged the old 1898 dam, whose powerhouse still stands underwater about upstream of the present-day dam. "[The Missouri's temperament was] uncertain as the actions of a jury or the state of a woman's mind." –Sioux City Register, March 28, 1868 The Missouri basin suffered a series of catastrophic floods around the turn of the 20th century, most notably in 1844, 1881, and 1926–1927. In 1940, as part of the Great Depression-era New Deal, the U.S. Army Corps of Engineers (USACE) completed Fort Peck Dam in Montana. Construction of this massive public works project provided jobs for more than 50,000 laborers during the Depression and was a major step in providing flood control to the lower half of the Missouri River. However, Fort Peck only controls runoff from 11 percent of the Missouri River watershed, and had little effect on a severe snowmelt flood that struck the lower basin three years later. This event was particularly destructive as it submerged manufacturing plants in Omaha and Kansas City, greatly delaying shipments of military supplies in World War II. Flooding damages on the Mississippi–Missouri river system were one of the primary reasons for which Congress passed the Flood Control Act of 1944, opening the way for the USACE to develop the Missouri on a massive scale. The 1944 act authorized the Pick–Sloan Missouri Basin Program (Pick–Sloan Plan), which was a composite of two widely varying proposals. The Pick plan, with an emphasis on flood control and hydroelectric power, called for the construction of large storage dams along the main stem of the Missouri. The Sloan plan, which stressed the development of local irrigation, included provisions for roughly 85 smaller dams on tributaries. In the early stages of Pick–Sloan development, tentative plans were made to build a low dam on the Missouri at Riverdale, North Dakota and 27 smaller dams on the Yellowstone River and its tributaries. This was met with controversy from inhabitants of the Yellowstone basin, and eventually the USBR proposed a solution: to greatly increase the size of the proposed dam at Riverdale – today's Garrison Dam, thus replacing the storage that would have been provided by the Yellowstone dams. Because of this decision, the Yellowstone is now the longest free-flowing river in the contiguous United States. In the 1950s, construction commenced on the five mainstem dams – Garrison, Oahe, Big Bend, Fort Randall and Gavins Point – proposed under the Pick-Sloan Plan. Along with Fort Peck, which was integrated as a unit of the Pick-Sloan Plan in the 1940s, these dams now form the Missouri River Mainstem System. The flooding of lands along the Missouri River heavily impacted Native American groups whose reservations included fertile bottomlands and floodplains, especially in the arid Dakotas where it was some of the only good farmland they had. These consequences were pronounced in North Dakota's Fort Berthold Indian Reservation, where of land was taken by the construction of Garrison Dam. The Mandan, Hidatsa and Arikara/Sanish tribes sued the federal government on the basis of the 1851 Treaty of Fort Laramie which provided that reservation land could not be taken without the consent of both the tribes and Congress. After a lengthy legal battle the tribes were coerced in 1947 to accept a $5.1 million ($55 million today) settlement for the land, just $33 per acre. In 1949 this was increased to $12.6 million. The tribes were even denied the right to use the reservoir shore "for grazing, hunting, fishing, and other purposes". The six dams of the Mainstem System, chiefly Fort Peck, Garrison and Oahe, are among the largest dams in the world by volume; their sprawling reservoirs also rank among the biggest of the nation. Holding up to in total, the six reservoirs can store more than three years' worth of the river's flow as measured below Gavins Point, the lowermost dam. This capacity makes it the largest reservoir system in the United States and one of the largest in North America. In addition to storing irrigation water, the system also includes an annual flood-control reservation of . Mainstem power plants generate about 9.3 billion KWh annually – equal to a constant output of almost 1,100 megawatts. Along with nearly 100 smaller dams on tributaries, namely the Bighorn, Platte, Kansas, and Osage Rivers, the system provides irrigation water to nearly of land. The table at left lists statistics of all fifteen dams on the Missouri River, ordered downstream. Many of the run-of-the-river dams on the Missouri (marked in yellow) form very small impoundments which may or may not have been given names; those unnamed are left blank. All dams are on the upper half of the river above Sioux City; the lower river is uninterrupted due to its longstanding use as a shipping channel. Navigation "[Missouri River shipping] never achieved its expectations. Even under the very best of circumstances, it was never a huge industry."~Richard Opper, former Missouri River Basin Association executive director Boat travel on the Missouri began with the wood-framed canoes and bull boats that Native Americans used for thousands of years before the colonization of the Great Plains introduced larger craft to the river. The first steamboat on the Missouri was the Independence, which started running between St. Louis and Keytesville, Missouri around 1819. By the 1830s, large mail and freight-carrying vessels were running regularly between Kansas City and St. Louis, and many traveled even farther upstream. A handful, such as the Western Engineer and the Yellowstone, could make it up the river as far as eastern Montana. During the early 19th century, at the height of the fur trade, steamboats and keelboats travelled nearly the whole length of the Missouri from Montana's rugged Missouri Breaks to the mouth, carrying beaver and buffalo furs to and from the areas the trappers frequented. This resulted in the development of the Missouri River mackinaw, which specialized in carrying furs. Since these boats could only travel downriver, they were dismantled and sold for lumber upon their arrival at St. Louis. Water transport increased through the 1850s with multiple craft ferrying pioneers, emigrants and miners; many of these runs were from St. Louis or Independence to near Omaha. There, most of these people would set out overland along the large but shallow and unnavigable Platte River, which pioneers described as "a mile wide and an inch deep" and "the most magnificent and useless of rivers". Steamboat navigation peaked in 1858 with over 130 boats operating full-time on the Missouri, with many more smaller vessels. Many of the earlier vessels were built on the Ohio River before being transferred to the Missouri. Side-wheeler steamboats were preferred over the larger sternwheelers used on the Mississippi and Ohio because of their greater maneuverability. The industry's success, however, did not guarantee safety. In the early decades before man controlled the river's flow, its sketchy rises and falls and its massive amounts of sediment, which prevented a clear view of the bottom, wrecked some 300 vessels. Because of the dangers of navigating the Missouri River, the average ship's lifespan was only about four years. The development of the Transcontinental and Northern Pacific Railroads marked the beginning of the end of steamboat commerce on the Missouri. Outcompeted by trains, the number of boats slowly dwindled, until there was almost nothing left by the 1890s. Transport of agricultural and mining products by barge, however, saw a revival in the early twentieth century. Passage to Sioux City Since the beginning of the 20th century, the Missouri River has been extensively engineered for water transport purposes, and about 32 percent of the river now flows through artificially straightened channels. In 1912, the USACE was authorized to maintain the Missouri to a depth of from the Port of Kansas City to the mouth, a distance of . This was accomplished by constructing levees and wing dams to direct the river's flow into a straight, narrow channel and prevent sedimentation. In 1925, the USACE began a project to widen the river's navigation channel to ; two years later, they began dredging a deep-water channel from Kansas City to Sioux City. These modifications have reduced the river's length from some in the late 19th century to in the present day. Construction of dams on the Missouri under the Pick-Sloan Plan in the mid-twentieth century was the final step in aiding navigation. The large reservoirs of the Mainstem System help provide a dependable flow to maintain the navigation channel year-round, and are capable of halting most of the river's annual freshets. However, high and low water cycles of the Missouri – notably the protracted early-21st-century drought in the Missouri River basin and historic floods in 1993 and 2011 – are difficult for even the massive Mainstem System reservoirs to control. In 1945, the USACE began the Missouri River Bank Stabilization and Navigation Project, which would permanently increase the river's navigation channel to a width of and a depth of . During work that continues to this day, the navigation channel from Sioux City to St. Louis has been controlled by building rock dikes to direct the river's flow and scour out sediments, sealing and cutting off meanders and side channels, and dredging the riverbed. However, the Missouri has often resisted the efforts of the USACE to control its depth. In 2006, the U.S. Coast Guard stated that commercial barge tows ran aground in the Missouri River because the navigation channel had been severely silted. The USACE was blamed for failing to maintain the channel to the minimum depth. In 1929, the Missouri River Navigation Commission estimated the amount of goods shipped on the river annually at 15 million tons (13.6 million metric tons), providing widespread consensus for the creation of a navigation channel. However, shipping traffic has since been far lower than expected – shipments of commodities including produce, manufactured items, lumber, and oil averaged only 683,000 tons (616,000 t) per year from 1994 to 2006. By tonnage of transported material, Missouri is by far the largest user of the river accounting for 83 percent of river traffic, while Kansas has 12 percent, Nebraska three percent and Iowa two percent. Almost all of the barge traffic on the Missouri River ships sand and gravel dredged from the lower of the river; the remaining portion of the shipping channel now sees little to no use by commercial vessels. For navigation purposes, the Missouri River is divided into two main sections. The Upper Missouri River is north of Gavins Point Dam, the last hydroelectric dam of fifteen on the river, just upstream from Sioux City, Iowa. The Lower Missouri River is the of river below Gavins Point until it meets the Mississippi just above St. Louis. The Lower Missouri River has no hydroelectric dams or locks but it has a plethora of wing dams that enable barge traffic by directing the flow of the river into a , channel. These wing dams have been put in place by and are maintained by the U.S. Army Corps of Engineers, and there are no plans to construct any locks to replace these wing dams on the Missouri River. Traffic decline Tonnage of goods shipped by barges on the Missouri River has seen a serious decline from the 1960s to the present. In the 1960s, the USACE predicted an increase to per year by 2000, but instead the opposite has happened. The amount of goods plunged from in 1977 to just in 2000. One of the largest drops has been in agricultural products, especially wheat. Part of the reason is that irrigated land along the Missouri has only been developed to a fraction of its potential. In 2006, barges on the Missouri hauled only of products which is equal to the daily freight traffic on the Mississippi. Drought conditions in the early 21st century and competition from other modes of transport – mainly railroads – are the primary reason for decreasing river traffic on the Missouri. The USACE's failure to consistently maintain the navigation channel has also hampered the industry. Efforts are being made to revive the shipping industry on the Missouri River, because of the efficiency and cheapness of river transport to haul agricultural products, and the overcrowding of alternative transportation routes. Solutions such as expanding the navigation channel and releasing more water from reservoirs during the peak of the navigation season are under consideration. Drought conditions lifted in 2010, in which about were barged on the Missouri, representing the first significant increase in shipments since 2000. However, flooding in 2011 closed record stretches of the river to boat traffic – "wash[ing] away hopes for a bounce-back year". There are no lock and dams on the lower Missouri River, but there are plenty of wing dams that jettie out into the river and make it harder for barges to navigate. In contrast, the upper Mississippi has 29 locks and dams and averaged 61.3 million tons of cargo annually from 2008 to 2011, and its locks are closed in the winter. Ecology Natural history Historically, the thousands of square miles that comprised the floodplain of the Missouri River supported a wide range of plant and animal species. Biodiversity generally increased proceeding downstream from the cold, subalpine headwaters in Montana to the temperate, moist climate of Missouri. Today, the river's riparian zone consists primarily of cottonwoods, willows and sycamores, with several other types of trees such as maple and ash. Average tree height generally increases farther from the riverbanks for a limited distance, as land next to the river is vulnerable to soil erosion during floods. Because of its large sediment concentrations, the Missouri does not support many aquatic invertebrates. However, the basin supports about 300 species of birds and 150 species of fish, some of which are endangered such as the pallid sturgeon. The Missouri's aquatic and riparian habitats also support several species of mammals, such as minks, river otters, beavers, muskrats, and raccoons. The World Wide Fund For Nature divides the Missouri River watershed into three freshwater ecoregions: the Upper Missouri, Lower Missouri and Central Prairie. The Upper Missouri, roughly encompassing the area within Montana, Wyoming, southern Alberta and Saskatchewan, and North Dakota, comprises mainly semiarid shrub-steppe grasslands with sparse biodiversity because of Ice Age glaciations. There are no known endemic species within the region. Except for the headwaters in the Rockies, there is little precipitation in this part of the watershed. The Middle Missouri ecoregion, extending through Colorado, southwestern Minnesota, northern Kansas, Nebraska, and parts of Wyoming and Iowa, has greater rainfall and is characterized by temperate forests and grasslands. Plant life is more diverse in the Middle Missouri, which is also home to about twice as many animal species. Finally, the Central Prairie ecoregion is situated on the lower part of the Missouri, encompassing all or parts of Missouri, Kansas, Oklahoma and Arkansas. Despite large seasonal temperature fluctuations, this region has the greatest diversity of plants and animals of the three. Thirteen species of crayfish are endemic to the lower Missouri. Human impacts Since river commerce and industrial development began in the 1800s, human activity has severely polluted the Missouri and degraded its water quality. Most of the river's floodplain habitat is long gone, replaced by irrigated agricultural land. Development of the floodplain has led to increasing numbers of people and infrastructure within areas at high risk of inundation. Levees have been constructed along more than a third of the river to keep floodwater within the channel, but with the consequences of faster stream velocity and a resulting increase of peak flows in downstream areas. Fertilizer runoff, which causes elevated levels of nitrogen and other nutrients, is a major problem along the Missouri River, especially in Iowa and Missouri. This form of pollution also affects the upper Mississippi, Illinois and Ohio Rivers. Low oxygen levels in rivers and the vast Gulf of Mexico dead zone at the end of the Mississippi Delta are both results of high nutrient concentrations in the Missouri and other tributaries of the Mississippi. Channelization of the lower Missouri waters has made the river narrower, deeper and less accessible to riparian flora and fauna. Many dams and bank stabilization projects have been built to help convert of Missouri River floodplain to agricultural land. Channel control has reduced the volume of sediment transported downstream by the river and eliminated critical habitat for fish, birds and amphibians. By the early 21st century, declines in populations of native species prompted the U.S. Fish and Wildlife Service to issue a biological opinion recommending restoration of river habitats for federally endangered bird and fish species. The USACE began work on ecosystem restoration projects along the lower Missouri River in the early 21st century. Because of the low use of the shipping channel in the lower Missouri maintained by the USACE, it is now considered feasible to remove some of the levees, dikes, and wing dams that constrict the river's flow, thus allowing it to naturally restore its banks. By 2001, there were of riverside floodplain undergoing active restoration. Restoration projects have re-mobilized some of the sediments that had been trapped behind bank stabilization structures, prompting concerns of exacerbated nutrient and sediment pollution locally and downstream in the northern Gulf of Mexico. A 2010 National Research Council report assessed the roles of sediment in the Missouri River, evaluating current habitat restoration strategies and alternative ways to manage sediment. The report found that a better understanding of sediment processes in the Missouri River, including the creation of a "sediment budget" – an accounting of sediment transport, erosion, and deposition volumes for the length of the Missouri River – would provide a foundation for projects to improve water quality standards and protect endangered species. National Wild and Scenic River Several sections of the Missouri River were added to the National Wild and Scenic Rivers System from Fort Benton to Robinson Bridge, Gavins Point Dam to Ponca State Park and Fort Randall Dam to Lewis and Clark Lake. A total of of the river were designated including of wild river and of scenic river in Montana. of the river is listed as recreational under the National Wild and Scenic Rivers System. Tourism and recreation With over of open water, the six reservoirs of the Missouri River Mainstem System provide some of the main recreational areas within the basin. Visitation has increased from 10 million visitor-hours in the mid-1960s to over 60 million visitor-hours in 1990. Development of visitor facilities was spurred by the Federal Water Project Recreation Act of 1965, which required the USACE to build and maintain boat ramps, campgrounds and other public facilities along major reservoirs. Recreational use of Missouri River reservoirs is estimated to contribute $85–100 million to the regional economy each year. The Lewis and Clark National Historic Trail, some long, follows nearly the entire Missouri River from its mouth to its source, retracing the route of the Lewis and Clark Expedition. Extending from Wood River, Illinois, in the east, to Astoria, Oregon, in the west, it also follows portions of the Mississippi and Columbia Rivers. The trail, which spans through eleven U.S. states, is maintained by various federal and state government agencies; it passes through some 100 historic sites, notably archaeological locations including the Knife River Indian Villages National Historic Site. Parts of the river itself are designated for recreational or preservational use. The Missouri National Recreational River consists of portions of the Missouri downstream from Fort Randall and Gavins Point Dams that total . These reaches exhibit islands, meanders, sandbars, underwater rocks, riffles, snags, and other once-common features of the lower river that have now disappeared under reservoirs or have been destroyed by channeling. About forty-five steamboat wrecks are scattered along these reaches of the river. Downstream from Great Falls, Montana, about of the river course through a rugged series of canyons and badlands known as the Missouri Breaks. This part of the river, designated a U.S. National Wild and Scenic River in 1976, flows within the Upper Missouri Breaks National Monument, a preserve comprising steep cliffs, deep gorges, arid plains, badlands, archaeological sites, and whitewater rapids on the Missouri itself. The preserve includes a wide variety of plant and animal life; recreational activities include boating, rafting, hiking and wildlife observation. In north-central Montana, some along over of the Missouri River, centering on Fort Peck Lake, comprise the Charles M. Russell National Wildlife Refuge. The wildlife refuge consists of a native northern Great Plains ecosystem that has not been heavily affected by human development, except for the construction of Fort Peck Dam. Although there are few designated trails, the whole preserve is open to hiking and camping. Many U.S. national parks, such as Glacier National Park, Rocky Mountain National Park, Yellowstone National Park and Badlands National Park are, at least partially, in the watershed. Parts of other rivers in the basin are set aside for preservation and recreational use – notably the Niobrara National Scenic River, which is a protected stretch of the Niobrara River, one of the Missouri's longest tributaries. The Missouri flows through or past many National Historic Landmarks, which include Three Forks of the Missouri, Fort Benton, Montana, Big Hidatsa Village Site, Fort Atkinson, Nebraska and Arrow Rock Historic District. See also Across the Wide Missouri (book) List of longest main-stem rivers in the United States List of crossings of the Missouri River List of populated places along the Missouri River Missouri National Recreational River U.S. Army Corps of Engineers Montana Stream Access Law Montana Wilderness Association Sacagawea Arabia Steamboat Museum Container on barge Notes References Works cited Further reading External links USGS Columbia Environmental Research Center: Missouri River Interactive Maps and Air photos for Missouri River Dams and Reservoirs Missouri River Dams: Canyon Ferry, Hauser and Holter Dams U.S. Army Corps of Engineers - Kansas City District U.S. Army Corps of Engineers - Omaha District Tributaries of the Mississippi River Borders of Iowa Borders of Kansas Borders of Missouri Borders of Nebraska Borders of South Dakota Geography of Omaha, Nebraska Rivers of Yankton County, South Dakota Rivers of Gallatin County, Montana Bodies of water of Broadwater County, Montana Rivers of Lewis and Clark County, Montana Bodies of water of McCone County, Montana Bodies of water of Roosevelt County, Montana Mississippi River watershed Rivers of Iowa Rivers of Kansas Rivers of Missouri Rivers of Montana Rivers of Nebraska Rivers of North Dakota Rivers of South Dakota Waterways in Omaha, Nebraska

19593

https://en.wikipedia.org/wiki/Missouria

Missouria

The Missouria or Missouri (in their own language, Niúachi, also spelled Niutachi) are a Native American tribe that originated in the Great Lakes region of what is now the United States before European contact. The tribe belongs to the Chiwere division of the Siouan language family, together with the Iowa and Otoe. Historically, the tribe lived in bands near the mouth of the Grand River at its confluence with the Missouri River; the mouth of the Missouri at its confluence with the Mississippi River, and in present-day Saline County, Missouri. Since Indian removal, today they live primarily in Oklahoma. They are federally recognized as the Otoe-Missouria Tribe of Indians, based in Red Rock, Oklahoma. Name French colonists adapted a form of the Illinois language-name for the people: Wimihsoorita. Their name means "One who has dugout canoes". In their own Siouan language, the Missouri call themselves Niúachi, also spelled Niutachi, meaning "People of the River Mouth." The Osage called them the Waçux¢a, and the Quapaw called them the Wa-ju'-xd¢ǎ. The state of Missouri and the Missouri River are named for the tribe. History The tribe's oral history tells that they once lived north of the Great Lakes. They began migrating south in the 16th century. By 1600, the Missouria lived near the confluence of the Grand and Missouri rivers, where they settled through the 18th century. Their tradition says that they split from the Otoe tribe, which belongs to the same Chiwere branch of the Siouan language, because of a love affair between the children of two tribal chiefs. The 17th century brought hardships to the Missouria. The Sauk and Fox frequently attacked them. Their society was even more disrupted by the high fatalities from epidemics of smallpox and other Eurasian infectious diseases that accompanied contact with Europeans. The French explorer Jacques Marquette contacted the tribe in 1673 and paved the way for trade with the French. The Missouria migrated west of the Missouri River into Osage territory. During this time, they acquired horses and hunted buffalo. The French explorer Étienne de Veniard, Sieur de Bourgmont visited the people in the early 1720s. He married the daughter of a Missouria chief. They settled nearby, and Veniard created alliances with the people. He built Fort Orleans in 1723 as a trading post near present-day Brunswick, Missouri. It was occupied until 1726. In 1730 an attack by the Sauk/Fox tribe nearly destroyed the Missouria, killing hundreds. Most survivors reunited with the Otoe, while some joined the Osage and Kansa. After a smallpox outbreak in 1829, fewer than 100 Missouria survived, and they all joined the Otoe. They signed treaties with the US government in 1830 and 1854 to cede their lands in Missouri. They relocated to the Otoe-Missouria reservation, created on the Big Blue River at the Kansas-Nebraska border. The US pressured the two tribes into ceding more lands in 1876 and 1881. In 1880 the tribes split into two factions, the Coyote, who were traditionalists, and the Quakers, who were assimilationists. The Coyote settled on the Iowa Reservation in Indian Territory. The Quakers negotiated a small separate reservation in Indian Territory. By 1890 most of the Coyote band rejoined the Quakers on their reservation. Under the Dawes Act, by 1907 members of the tribes were registered and allotted individual plots of land per household. The US declared any excess communal land of the tribe as "surplus" and sold it to European-American settlers. The tribe merged with the Otoe tribe. The Curtis Act required the disbanding of tribal courts and governments in order to assimilate the people and prepare the territory for statehood, but the tribe created their own court system in 1900. The Missouria were primarily farmers in the early 20th century. After oil was discovered on their lands in 1912, the US government forced many of the tribe off their allotments. Population According to the ethnographer James Mooney, the population of the tribe was about 200 families in 1702; 1000 people in 1780; 300 in 1805; 80 in 1829, when they were living with the Otoe; and 13 in 1910. Since then, their population numbers are combined with those of the Otoe. Notes References Pritzer, Barry M. A Native American Encyclopedia: History, Culture, and Peoples. Oxford: Oxford University Press, 2000. External links History of Missouri Indian Tribes, Access Genealogy, extracts for Missouria from John R. Swanton, The Indian Tribes of North America, Bureau of American Ethnology, Bulletin 145, Washington, DC: US Government Printing Office, 1953. Otoe-Missouria Genealogy Siouan peoples Great Lakes tribes Native American tribes in Missouri Native American tribes in Oklahoma Algonquian ethnonyms

19594

https://en.wikipedia.org/wiki/Missile

Missile

In military terminology, a missile is a guided airborne ranged weapon capable of self-propelled flight usually by a jet engine or rocket motor. Missiles are thus also called guided missiles or guided rockets (when in rocket form). Missiles have five system components: targeting, guidance system, flight system, engine and warhead. Missiles come in types adapted for different purposes: surface-to-surface and air-to-surface missiles (ballistic, cruise, anti-ship, anti-tank, etc.), surface-to-air missiles (and anti-ballistic), air-to-air missiles, and anti-satellite weapons. Airborne explosive devices without propulsion are referred to as shells if fired by an artillery piece and bombs if dropped by an aircraft. Unguided jet- or rocket-propelled missiles are usually described as rocket artillery. Historically, the word missile referred to any projectile that is thrown, shot or propelled towards a target; this usage is still recognized today. Early development The first missiles to be used operationally were a series of missiles developed by Nazi Germany in World War II. Most famous of these are the V-1 flying bomb and V-2 rocket, both of which used a mechanical autopilot to keep the missile flying along a pre-chosen route. Less well known were a series of Anti-Ship and Anti-aircraft missiles, typically based on a simple radio control (command guidance) system directed by the operator. However, these early systems in World War II were only built in small numbers. Technology Guided missiles have a number of different system components: Guidance system Targeting system Flight system Engine Warhead Guidance systems The most common method of guidance is to use some form of radiation, such as infrared, lasers or radio waves, to guide the missile onto its target. This radiation may emanate from the target (such as the heat of an engine or the radio waves from an enemy radar), it may be provided by the missile itself (such as a radar), or it may be provided by a friendly third party (such as the radar of the launch vehicle/platform, or a laser designator operated by friendly infantry). The first two are often known as fire-and-forget as they need no further support or control from the launch vehicle/platform in order to function. Another method is to use a TV guidance, with a visible light or infrared picture produced in order to see the target. The picture may be used either by a human operator who steering the missile onto its target or by a computer doing much the same job. One of the more bizarre guidance methods instead used a pigeon to steer a missile to its target. Some missiles also have a home-on-jam capability to guide itself to a radar-emitting source. Many missiles use a combination of two or more of the methods to improve accuracy and the chances of a successful engagement. Targeting systems Another method is to target the missile by knowing the location of the target and using a guidance system such as INS, TERCOM or satellite guidance. This guidance system guides the missile by knowing the missile's current position and the position of the target, and then calculating a course between them. This job can also be performed somewhat crudely by a human operator who can see the target and the missile and guide it using either cable- or radio-based remote control, or by an automatic system that can simultaneously track the target and the missile. Furthermore, some missiles use initial targeting, sending them to a target area, where they will switch to primary targeting, using either radar or IR targeting to acquire the target. Flight system Whether a guided missile uses a targeting system, a guidance system or both, it needs a flight system. The flight system uses the data from the targeting or guidance system to maneuver the missile in flight, allowing it to counter inaccuracies in the missile or to follow a moving target. There are two main systems: vectored thrust (for missiles that are powered throughout the guidance phase of their flight) and aerodynamic maneuvering (wings, fins, canard (aeronautics), etc.). Engine Missiles are powered by an engine, generally either a type of rocket engine or jet engine. Rockets are generally of the solid-propellant type for ease of maintenance and fast deployment, although some larger ballistic missiles use liquid-propellant rockets. Jet engines are generally used in cruise missiles, most commonly of the turbojet type, due to its relative simplicity and low frontal area. Turbofans and ramjets are the only other common forms of jet engine propulsion, although any type of engine could theoretically be used. Long-range missiles may have multiple engine stages, particularly in those launched from the surface. These stages may all be of similar types or may include a mix of engine types − for example, surface-launched cruise missiles often have a rocket booster for launching and a jet engine for sustained flight. Some missiles may have additional propulsion from another source at launch; for example, the V1 was launched by a catapult, and the MGM-51 Shillelagh was fired out of a tank gun (using a smaller charge than would be used for a shell). Warhead Missiles generally have one or more explosive warheads, although other weapon types may also be used. The warheads of a missile provide its primary destructive power (many missiles have extensive secondary destructive power due to the high kinetic energy of the weapon and unburnt fuel that may be on board). Warheads are most commonly of the high explosive type, often employing shaped charges to exploit the accuracy of a guided weapon to destroy hardened targets. Other warhead types include submunitions, incendiaries, nuclear weapons, chemical, biological or radiological weapons or kinetic energy penetrators. Warheadless missiles are often used for testing and training purposes. Basic roles Missiles are generally categorized by their launch platform and intended target. In broadest terms, these will either be surface (ground or water) or air, and then sub-categorized by range and the exact target type (such as anti-tank or anti-ship). Many weapons are designed to be launched from both surface or the air, and a few are designed to attack either surface or air targets (such as the ADATS missile). Most weapons require some modification in order to be launched from the air or surface, such as adding boosters to the surface-launched version. Ballistic After the boost stage, ballistic missiles follow a trajectory mainly determined by ballistics. The guidance is for relatively small deviations from that. Ballistic missiles are largely used for land attack missions. Although normally associated with nuclear weapons, some conventionally armed ballistic missiles are in service, such as MGM-140 ATACMS. The V2 had demonstrated that a ballistic missile could deliver a warhead to a target city with no possibility of interception, and the introduction of nuclear weapons meant it could efficiently do damage when it arrived. The accuracy of these systems was fairly poor, but post-war development by most military forces improved the basic Inertial navigation system concept to the point where it could be used as the guidance system on Intercontinental ballistic missiles flying thousands of kilometers. Today, the ballistic missile represents the only strategic deterrent in most military forces; however, some ballistic missiles are being adapted for conventional roles, such as the Russian Iskander or the Chinese DF-21D anti-ship ballistic missile. Ballistic missiles are primarily surface-launched from mobile launchers, silos, ships or submarines, with air launch being theoretically possible with a weapon such as the cancelled Skybolt missile. The Russian Topol M (SS-27 Sickle B) is the fastest (7,320 m/s) missile currently in service. Cruise The V1 had been successfully intercepted during World War II, but this did not make the cruise missile concept entirely useless. After the war, the US deployed a small number of nuclear-armed cruise missiles in Germany, but these were considered to be of limited usefulness. Continued research into much longer-ranged and faster versions led to the US's SM-64 Navaho and its Soviet counterparts, the Burya and Buran cruise missile. However, these were rendered largely obsolete by the ICBM, and none were used operationally. Shorter-range developments have become widely used as highly accurate attack systems, such as the US Tomahawk missile and Russian Kh-55. Cruise missiles are generally further divided into subsonic or supersonic weapons - supersonic weapons such as BrahMos (India, Russia) are difficult to shoot down, whereas subsonic weapons tend to be much lighter and cheaper, allowing more to be fired. Cruise missiles are generally associated with land-attack operations, but also have an important role as anti-shipping weapons. They are primarily launched from air, sea or submarine platforms in both roles, although land-based launchers also exist. Anti-ship and Anti-submarine Another major German missile development project was the anti-shipping class (such as the Fritz X and Henschel Hs 293), intended to stop any attempt at a cross-channel invasion. However, the British were able to render their systems useless by jamming their radios, and missiles with wire guidance were not ready by D-Day. After the war, the anti-shipping class slowly developed and became a major class in the 1960s with the introduction of the low-flying jet- or rocket-powered cruise missiles known as "sea-skimmers". These became famous during the Falklands War, when an Argentine Exocet missile disabled a Royal Navy destroyer. A number of anti-submarine missiles also exist; these generally use the missile in order to deliver another weapon system such as a torpedo or depth charge to the location of the submarine, at which point the other weapon will conduct the underwater phase of the mission. Anti-tank By the end of WWII, all forces had widely introduced unguided rockets using High-explosive anti-tank warheads as their major anti-tank weapon (see Panzerfaust, Bazooka). However, these had a limited useful range of 100 m or so, and the Germans were looking to extend this with the use of a missile using wire guidance, the X-7. After the war, this became a major design class in the later 1950s and, by the 1960s, had developed into practically the only non-tank anti-tank system in general use. During the 1973 Yom Kippur War between Israel and Egypt, the 9M14 Malyutka (aka "Sagger") man-portable anti-tank missile proved potent against Israeli tanks. While other guidance systems have been tried, the basic reliability of wire guidance means this will remain the primary means of controlling anti-tank missiles in the near future. Anti-tank missiles may be launched from aircraft, vehicles or by ground troops in the case of smaller weapons. Surface-to-air and subsurface-to-air Anti-aircraft By 1944, US and British air forces were sending huge air fleets over occupied Europe, increasing the pressure on the Luftwaffe day and night fighter forces. The Germans were keen to get some sort of useful ground-based anti-aircraft system into operation. Several systems were under development, but none had reached operational status before the war's end. The US Navy also started missile research to deal with the Kamikaze threat. By 1950, systems based on this early research started to reach operational service, including the US Army's MIM-3 Nike Ajax and the Navy's "3T's" (Talos, Terrier, Tartar), soon followed by the Soviet S-25 Berkut and S-75 Dvina and French and British systems. Anti-aircraft weapons exist for virtually every possible launch platform, with surface-launched systems ranging from huge, self-propelled or ship-mounted launchers to man-portable systems. Subsurface-to-air missiles are usually launched from below water (usually from submarines). Anti-ballistic Like most missiles, the S-300, S-400, Advanced Air Defence and MIM-104 Patriot are for defense against short-range missiles and carry explosive warheads. In the case of a large closing speed, a projectile without explosives is used; just a collision is sufficient to destroy the target. See Missile Defense Agency for the following systems being developed: Arrow 3 Kinetic Energy Interceptor (KEI) Aegis Ballistic Missile Defense System (Aegis BMD) - an SM-3 missile with a Lightweight Exo-Atmospheric Projectile (LEAP) Kinetic Warhead (KW) Air-to-air For the first time used by Soviet pilots in the summer of 1939 during the Battle of Khalkhin Gol. On August 20, 1939, the Japanese Nakajima Ki-27 fighter was attacked by the Soviet Polikarpov I-16 fighter of the Captain N. Zvonarev, he fired a rocket salvo, from a distance of about a kilometer, after which the Ki-27 crashed to the ground. A group of Polikarpov I-16 fighters under command of Captain N. Zvonarev were using RS-82 rockets against Japanese aircraft, shooting down 16 fighters and 3 bombers in total. German experience in World War II demonstrated that destroying a large aircraft was quite difficult, and they had invested considerable effort into air-to-air missile systems to do this. Their Messerschmitt Me 262's jets often carried R4M rockets, and other types of "bomber destroyer" aircraft had unguided rockets as well. In the post-war period, the R4M served as the pattern for a number of similar systems, used by almost all interceptor aircraft during the 1940s and 1950s. Most rockets (except for the AIR-2 Genie, due to its nuclear warhead with a large blast radius) had to be carefully aimed at relatively close range to hit the target successfully. The United States Navy and U.S. Air Force began deploying guided missiles in the early 1950s, most famous being the US Navy's AIM-9 Sidewinder and the USAF's AIM-4 Falcon. These systems have continued to advance, and modern air warfare consists almost entirely of missile firing. In the Falklands War, less powerful British Harriers were able to defeat faster Argentinian opponents using American AIM-9L missiles. The latest heat-seeking designs can lock onto a target from various angles, not just from behind, where the heat signature from the engines is strongest. Other types rely on radar guidance (either on board or "painted" by the launching aircraft). Air-to-air missiles also have a wide range of sizes, ranging from helicopter-launched self-defense weapons with a range of a few kilometers, to long-range weapons designed for interceptor aircraft such as the R-37 (missile). Anti-satellite In the 1950s and 1960s, Soviet designers started work on an anti-satellite weapon as part of the Istrebitel Sputnikov program ("istrebitel sputnikov" literally means "destroyer of satellites"). After a lengthy development process of roughly twenty years, it was finally decided that the testing of these weapons be canceled. This was when the United States started testing their own systems. The Brilliant Pebbles defense system proposed during the 1980s would have used kinetic energy collisions without explosives. Anti-satellite weapons may be launched either by an aircraft or a surface platform, depending on the design. To date, only a few known tests have occurred. As of 2019, only 4 countries - United States, India, Russia and China have operational anti-satellite weapons. See also Anti-aircraft warfare Anti-ballistic missile defense countermeasures Loitering munition Aeroprediction Center of pressure Command missile Guided missile destroyer List of ships sunk by missiles Missile approach warning system Missile boat Missile defense Missile defense systems by country Missile designation Missile gap Missile guidance Missile launch control center Missile launchers Missile range instrumentation ship Missile tank Missile Technology Control Regime Missile turret Missile vehicle NATO missile defence system Proportional navigation Rocket garden Scramjet Skid-to-turn Soft launching Timeline of rocket and missile technology Transporter erector launcher Trajectory optimization Twilight phenomena Vertical launcher References External links Missile Threat: A Project of the Center for Strategic and International Studies Ammunition Explosive weapons

19595

https://en.wikipedia.org/wiki/Mendelian%20inheritance

Mendelian inheritance

Mendelian inheritance is a type of biological inheritance that follows the principles originally proposed by Gregor Mendel in 1865 and 1866, re-discovered in 1900 by Hugo de Vries and Carl Correns, and popularized by William Bateson. These principles were initially controversial. When Mendel's theories were integrated with the Boveri–Sutton chromosome theory of inheritance by Thomas Hunt Morgan in 1915, they became the core of classical genetics. Ronald Fisher combined these ideas with the theory of natural selection in his 1930 book The Genetical Theory of Natural Selection, putting evolution onto a mathematical footing and forming the basis for population genetics within the modern evolutionary synthesis. History The principles of Mendelian inheritance were named for and first derived by Gregor Johann Mendel, a nineteenth-century Moravian monk who formulated his ideas after conducting simple hybridisation experiments with pea plants (Pisum sativum) he had planted in the garden of his monastery. Between 1856 and 1863, Mendel cultivated and tested some 5,000 pea plants. From these experiments, he induced two generalizations which later became known as Mendel's Principles of Heredity or Mendelian inheritance. He described his experiments in a two-part paper, Versuche über Pflanzen-Hybriden (Experiments on Plant Hybridization), that he presented to the Natural History Society of Brno on 8 February and 8 March 1865, and which was published in 1866. Mendel's results were largely ignored by the vast majority. Although they were not completely unknown to biologists of the time, they were not seen as generally applicable, even by Mendel himself, who thought they only applied to certain categories of species or traits. A major block to understanding their significance was the importance attached by 19th-century biologists to the apparent blending of many inherited traits in the overall appearance of the progeny, now known to be due to multi-gene interactions, in contrast to the organ-specific binary characters studied by Mendel. In 1900, however, his work was "re-discovered" by three European scientists, Hugo de Vries, Carl Correns, and Erich von Tschermak. The exact nature of the "re-discovery" has been debated: De Vries published first on the subject, mentioning Mendel in a footnote, while Correns pointed out Mendel's priority after having read De Vries' paper and realizing that he himself did not have priority. De Vries may not have acknowledged truthfully how much of his knowledge of the laws came from his own work and how much came only after reading Mendel's paper. Later scholars have accused Von Tschermak of not truly understanding the results at all. Regardless, the "re-discovery" made Mendelism an important but controversial theory. Its most vigorous promoter in Europe was William Bateson, who coined the terms "genetics" and "allele" to describe many of its tenets. The model of heredity was contested by other biologists because it implied that heredity was discontinuous, in opposition to the apparently continuous variation observable for many traits. Many biologists also dismissed the theory because they were not sure it would apply to all species. However, later work by biologists and statisticians such as Ronald Fisher showed that if multiple Mendelian factors were involved in the expression of an individual trait, they could produce the diverse results observed, and thus showed that Mendelian genetics is compatible with natural selection. Thomas Hunt Morgan and his assistants later integrated Mendel's theoretical model with the chromosome theory of inheritance, in which the chromosomes of cells were thought to hold the actual hereditary material, and created what is now known as classical genetics, a highly successful foundation which eventually cemented Mendel's place in history. Mendel's findings allowed scientists such as Fisher and J.B.S. Haldane to predict the expression of traits on the basis of mathematical probabilities. An important aspect of Mendel's success can be traced to his decision to start his crosses only with plants he demonstrated were true-breeding. He only measured discrete (binary) characteristics, such as color, shape, and position of the seeds, rather than quantitatively variable characteristics. He expressed his results numerically and subjected them to statistical analysis. His method of data analysis and his large sample size gave credibility to his data. He had the foresight to follow several successive generations (P, F1, F2, F3) of pea plants and record their variations. Finally, he performed "test crosses" (backcrossing descendants of the initial hybridization to the initial true-breeding lines) to reveal the presence and proportions of recessive characters. Mendel's genetic discoveries Five parts of Mendel's discoveries were an important divergence from the common theories at the time and were the prerequisite for the establishment of his rules. Characters are unitary, that is, they are discrete e.g: purple vs. white, tall vs. dwarf. There is no medium sized plant or light purple flower. Genetic characteristics have alternate forms, each inherited from one of two parents. Today, we call these alleles. One allele is dominant over the other. The phenotype reflects the dominant allele. Gametes are created by random segregation. Heterozygotic individuals produce gametes with an equal frequency of the two alleles. Different traits have independent assortment. In modern terms, genes are unlinked. According to customary terminology we refer here to the principles of inheritance discovered by Gregor Mendel as Mendelian laws, although today's geneticists also speak of Mendelian rules or Mendelian principles, as there are many exceptions summarized under the collective term Non-Mendelian inheritance. Mendel selected for the experiment the following characters of pea plants: Form of the ripe seeds (round or roundish, surface shallow or wrinkled) Colour of the seed–coat (white, gray, or brown, with or without violet spotting) Colour of the seeds and cotyledons (yellow or green) Flower colour (white or yellow) Form of the ripe pods (simply inflated, not contracted, or constricted between the seeds and wrinkled) Colour of the unripe pods (yellow or green) Position of the flowers (axial or terminal) Length of the stem When he crossed purebred white flower and purple flower pea plants (the parental or P generation) by artificial pollination, the resulting flower colour was not a blend. Rather than being a mix of the two, the offspring in the first generation (F1-generation) were all purple-flowered. Therefore, he called this biological trait dominant. When he allowed self-fertilization in the uniform looking F1-generation, he obtained both colours in the F2 generation with a purple flower to white flower ratio of 3 : 1. In some of the other characters also one of the traits was dominant. He then conceived the idea of heredity units, which he called hereditary "factors". Mendel found that there are alternative forms of factors—now called genes—that account for variations in inherited characteristics. For example, the gene for flower color in pea plants exists in two forms, one for purple and the other for white. The alternative "forms" are now called alleles. For each trait, an organism inherits two alleles, one from each parent. These alleles may be the same or different. An organism that has two identical alleles for a gene is said to be homozygous for that gene (and is called a homozygote). An organism that has two different alleles for a gene is said be heterozygous for that gene (and is called a heterozygote). Mendel hypothesized that allele pairs separate randomly, or segregate, from each other during the production of the gametes in the seed plant (egg cell) and the pollen plant (sperm). Because allele pairs separate during gamete production, a sperm or egg carries only one allele for each inherited trait. When sperm and egg unite at fertilization, each contributes its allele, restoring the paired condition in the offspring. Mendel also found that each pair of alleles segregates independently of the other pairs of alleles during gamete formation. The genotype of an individual is made up of the many alleles it possesses. The phenotype is the result of the expression of all characteristics that are genetically determined by its alleles as well as by its environment. The presence of an allele does not mean that the trait will be expressed in the individual that possesses it. If the two alleles of an inherited pair differ (the heterozygous condition), then one determines the organism's appearance and is called the dominant allele; the other has no noticeable effect on the organism's appearance and is called the recessive allele. Law of Dominance and Uniformity If two parents are mated with each other who differ in one genetic characteristic for which they are both homozygous (each pure-bred), all offspring in the first generation (F1) are equal to the examined characteristic in genotype and phenotype showing the dominant trait. This uniformity rule or reciprocity rule applies to all individuals of the F1-generation. The principle of dominant inheritance discovered by Mendel states that in a heterozygote the dominant allele will cause the recessive allele to be "masked": that is, not expressed in the phenotype. Only if an individual is homozygous with respect to the recessive allele will the recessive trait be expressed. Therefore, a cross between a homozygous dominant and a homozygous recessive organism yields a heterozygous organism whose phenotype displays only the dominant trait. The F1 offspring of Mendel's pea crosses always looked like one of the two parental varieties. In this situation of "complete dominance," the dominant allele had the same phenotypic effect whether present in one or two copies. But for some characteristics, the F1 hybrids have an appearance in between the phenotypes of the two parental varieties. A cross between two four o'clock (Mirabilis jalapa) plants shows an exception to Mendel's principle, called incomplete dominance. Flowers of heterozygous plants have a phenotype somewhere between the two homozygous genotypes. In cases of intermediate inheritance (incomplete dominance) in the F1-generation Mendel's principle of uniformity in genotype and phenotype applies as well. Research about intermediate inheritance was done by other scientists. The first was Carl Correns with his studies about Mirabilis jalapa. Law of Segregation of genes The Law of Segregation of genes applies when two individuals, both heterozygous for a certain trait are crossed, for example hybrids of the F1-generation. The offspring in the F2-generation differ in genotype and phenotype, so that the characteristics of the grandparents (P-generation) regularly occur again. In a dominant-recessive inheritance an average of 25% are homozygous with the dominant trait, 50% are heterozygous showing the dominant trait in the phenotype (genetic carriers), 25% are homozygous with the recessive trait and therefore express the recessive trait in the phenotype. The genotypic ratio is 1 : 2 : 1, the phenotypic ratio is 3 : 1. In the pea plant example, the capital "B" represents the dominant allele for purple blossom and lowercase "b" represents the recessive allele for white blossom. The pistil plant and the pollen plant are both F1-hybrids with genotype "B b". Each has one allele for purple and one allele for white. In the offspring, in the F2-plants in the Punnett-square, three combinations are possible. The genotypic ratio is 1 BB : 2 Bb : 1 bb. But the phenotypic ratio of plants with purple blossoms to those with white blossoms is 3 : 1 due to the dominance of the allele for purple. Plants with homozygous "b b" are white flowered like one of the grandparents in the P-generation. In cases of incomplete dominance the same segregation of alleles takes place in the F2-generation, but here also the phenotypes show a ratio of 1 : 2 : 1, as the heterozygous are different in phenotype from the homozygous because the genetic expression of one allele compensates the missing expression of the other allele only partially. This results in an intermediate inheritance which was later described by other scientists. In some literature sources the principle of segregation is cited as "first law". Nevertheless, Mendel did his crossing experiments with heterozygous plants after obtaining these hybrids by crossing two purebred plants, discovering the principle of dominance and uniformity at first. Molecular proof of segregation of genes was subsequently found through observation of meiosis by two scientists independently, the German botanist Oscar Hertwig in 1876, and the Belgian zoologist Edouard Van Beneden in 1883. Most alleles are located in chromosomes in the cell nucleus. Paternal and maternal chromosomes get separated in meiosis, because during spermatogenesis the chromosomes are segregated on the four sperm cells that arise from one mother sperm cell, and during oogenesis the chromosomes are distributed between the polar bodies and the egg cell. Every individual organism contains two alleles for each trait. They segregate (separate) during meiosis such that each gamete contains only one of the alleles. When the gametes unite in the zygote the alleles—one from the mother one from the father—get passed on to the offspring. An offspring thus receives a pair of alleles for a trait by inheriting homologous chromosomes from the parent organisms: one allele for each trait from each parent. Heterozygous individuals with the dominant trait in the phenotype are genetic carriers of the recessive trait. Law of Independent Assortment The Law of Independent Assortment states that alleles for separate traits are passed independently of one another. That is, the biological selection of an allele for one trait has nothing to do with the selection of an allele for any other trait. Mendel found support for this law in his dihybrid cross experiments. In his monohybrid crosses, an idealized 3:1 ratio between dominant and recessive phenotypes resulted. In dihybrid crosses, however, he found a 9:3:3:1 ratios. This shows that each of the two alleles is inherited independently from the other, with a 3:1 phenotypic ratio for each. Independent assortment occurs in eukaryotic organisms during meiotic metaphase I, and produces a gamete with a mixture of the organism's chromosomes. The physical basis of the independent assortment of chromosomes is the random orientation of each bivalent chromosome along the metaphase plate with respect to the other bivalent chromosomes. Along with crossing over, independent assortment increases genetic diversity by producing novel genetic combinations. There are many deviations from the principle of independent assortment due to genetic linkage. Of the 46 chromosomes in a normal diploid human cell, half are maternally derived (from the mother's egg) and half are paternally derived (from the father's sperm). This occurs as sexual reproduction involves the fusion of two haploid gametes (the egg and sperm) to produce a zygote and a new organism, in which every cell has two sets of chromosomes (diploid). During gametogenesis the normal complement of 46 chromosomes needs to be halved to 23 to ensure that the resulting haploid gamete can join with another haploid gamete to produce a diploid organism. In independent assortment, the chromosomes that result are randomly sorted from all possible maternal and paternal chromosomes. Because zygotes end up with a mix instead of a pre-defined "set" from either parent, chromosomes are therefore considered assorted independently. As such, the zygote can end up with any combination of paternal or maternal chromosomes. For human gametes, with 23 chromosomes, the number of possibilities is 223 or 8,388,608 possible combinations. This contributes to the genetic variability of progeny. Generally, the recombination of genes has important implications for many evolutionary processes. Mendelian trait A Mendelian trait is one that is controlled by a single locus in an inheritance pattern. In such cases, a mutation in a single gene can cause a disease that is inherited according to Mendel's principles. Dominant diseases manifest in heterozygous individuals. Recessive ones are sometimes inherited unnoticeably by genetic carriers. Examples include sickle-cell anemia, Tay–Sachs disease, cystic fibrosis and xeroderma pigmentosa. A disease controlled by a single gene contrasts with a multi-factorial disease, like heart disease, which is affected by several loci (and the environment) as well as those diseases inherited in a non-Mendelian fashion. Non-Mendelian inheritance After Mendel's studies and discoveries more and more new discoveries about genetics were made. Mendel himself has said that the regularities he discovered apply only to the organisms and characteristics he consciously chose for his experiments. Mendel explained inheritance in terms of discrete factors—genes—that are passed along from generation to generation according to the rules of probability. Mendel's laws are valid for all sexually reproducing organisms, including garden peas and human beings. However, Mendel's laws stop short of explaining some patterns of genetic inheritance. For most sexually reproducing organisms, cases where Mendel's laws can strictly account for all patterns of inheritance are relatively rare. Often the inheritance patterns are more complex. In cases of codominance the phenotypes produced by both alleles are clearly expressed. Mendel chose genetic traits in plants that are determined by only two alleles, such as "A" and "a". In nature, genes often exist in several different forms with multiple alleles. Furthermore, many traits are produced by the interaction of several genes. Traits controlled by two or more genes are said to be polygenic traits. See also List of Mendelian traits in humans Mendelian diseases (monogenic disease) Mendelian error Particulate inheritance Punnett square References Notes External links Khan Academy, video lecture Probability of Inheritance Mendel's principles of Inheritance Mendelian genetics Classical genetics Genetics it:Gregor Mendel#Le leggi di Mendel

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https://en.wikipedia.org/wiki/Machinima

Machinima

Machinima, originally machinema () is the use of real-time computer graphics engines to create a cinematic production. Most often, video games are used to generate the computer animation. The word "machinima" is a portmanteau of the words machine and cinema. Machinima-based artists, sometimes called machinimists or machinimators, are often fan laborers, by virtue of their re-use of copyrighted materials (see below). Machinima offers to provide an archive of gaming performance and access to the look and feel of software and hardware that may already have become obsolete or even unavailable. For game studies, "Machinima’s gestures grant access to gaming's historical conditions of possibility and how machinima offers links to a comparative horizon that informs, changes, and fully participates in videogame culture." The practice of using graphics engines from video games arose from the animated software introductions of the 1980s demoscene, Disney Interactive Studios' 1992 video game Stunt Island, and 1990s recordings of gameplay in first-person shooter (FPS) video games, such as id Software's Doom and Quake. Originally, these recordings documented speedruns—attempts to complete a level as quickly as possible—and multiplayer matches. The addition of storylines to these films created "Quake movies". The more general term machinima, a blend of machine and cinema, arose when the concept spread beyond the Quake series to other games and software. After this generalization, machinima appeared in mainstream media, including television series and advertisements. Machinima has advantages and disadvantages when compared to other styles of filmmaking. Its relative simplicity over traditional frame-based animation limits control and range of expression. Its real-time nature favors speed, cost saving, and flexibility over the higher quality of pre-rendered computer animation. Virtual acting is less expensive, dangerous, and physically restricted than live action. Machinima can be filmed by relying on in-game artificial intelligence (AI) or by controlling characters and cameras through digital puppetry. Scenes can be precisely scripted, and can be manipulated during post-production using video editing techniques. Editing, custom software, and creative cinematography may address technical limitations. Game companies have provided software for and have encouraged machinima, but the widespread use of digital assets from copyrighted games has resulted in complex, unresolved legal issues. Machinima productions can remain close to their gaming roots and feature stunts or other portrayals of gameplay. Popular genres include dance videos, comedy, and drama. Alternatively, some filmmakers attempt to stretch the boundaries of the rendering engines or to mask the original 3-D context. The Academy of Machinima Arts & Sciences (AMAS), a non-profit organization dedicated to promoting machinima, recognizes exemplary productions through Mackie awards given at its annual Machinima Film Festival. Some general film festivals accept machinima, and game companies, such as Epic Games, Blizzard Entertainment and Jagex, have sponsored contests involving it. History Precedent 1980s software crackers added custom introductory credits sequences (intros) to programs whose copy protection they had removed. Increasing computing power allowed for more complex intros, and the demoscene formed when focus shifted to the intros instead of the cracks. The goal became to create the best 3-D demos in real-time with the least amount of software code. Disk storage was too slow for this, so graphics had to be calculated on the fly and without a pre-existing game engine. In Disney Interactive Studios' 1992 computer game Stunt Island, users could stage, record, and play back stunts. As Nitsche stated, the game's goal was "not ... a high score but a spectacle." Released the following year, id Software's Doom included the ability to record gameplay as sequences of events that the game engine could later replay in real-time. Because events and not video frames were saved, the resulting game demo files were small and easily shared among players. A culture of recording gameplay developed, as Henry Lowood of Stanford University called it, "a context for spectatorship.... The result was nothing less than a metamorphosis of the player into a performer." Another important feature of Doom was that it allowed players to create their own modifications, maps, and software for the game, thus expanding the concept of game authorship. In machinima, there is a dual register of gestures: the trained motions of the player determine the in-game images of expressive motion. In parallel of the video game approach, in the media art field, Maurice Benayoun’s Virtual Reality artwork The Tunnel under the Atlantic (1995), often compared to video games, introduced a virtual film director, fully autonomous intelligent agent, to shoot and edit in real time a full video from the digging performance in the Pompidou Center in Paris and the Museum of Contemporary art in Montreal. The full movie, Inside the Tunnel under the Atlantic, 21h long, was followed in 1997 by Inside the Paris New-Delhi Tunnel (13h long). Only short excerpts were presented to the public. The complex behavior of the Tunnel’s virtual director makes it a significant precursor of later application to video games based machinimas. Dooms 1996 successor, Quake, offered new opportunities for both gameplay and customization, while retaining the ability to record demos. Multiplayer video games became popular, and demos of matches between teams of players (clans) were recorded and studied. Paul Marino, executive director of the AMAS, stated that deathmatches, a type of multiplayer game, became more "cinematic". At this point, however, they still documented gameplay without a narrative. Quake movies On October 26, 1996, a well-known gaming clan, the Rangers, surprised the Quake community with Diary of a Camper, the first widely known machinima film. This short, 100-second demo file contained the action and gore of many others, but in the context of a brief story, rather than the usual deathmatch. An example of transformative or emergent gameplay, this shift from competition to theater required both expertise in and subversion of the game's mechanics. The Ranger demo emphasized this transformation by retaining specific gameplay references in its story. Diary of a Camper inspired many other "Quake movies," as these films were then called. A community of game modifiers (modders), artists, expert players, and film fans began to form around them. The works were distributed and reviewed on websites such as The Cineplex, Psyk's Popcorn Jungle, and the Quake Movie Library (QML). Production was supported by dedicated demo-processing software, such as Uwe Girlich's Little Movie Processing Center (LMPC) and David "crt" Wright's non-linear editor Keygrip, which later became known as "Adobe Premiere for Quake demo files". Among the notable films were Clan Phantasm's Devil's Covenant, the first feature-length Quake movie; Avatar and Wendigo's Blahbalicious, which the QML awarded seven Quake Movie Oscars; and Clan Undead's Operation Bayshield, which introduced simulated lip synchronization and featured customized digital assets. Released in December 1997, id Software's Quake II improved support for user-created 3-D models. However, without compatible editing software, filmmakers continued to create works based on the original Quake. These included the ILL Clan's Apartment Huntin' and the Quake done Quick group's Scourge Done Slick. Quake II demo editors became available in 1998. In particular, Keygrip 2.0 introduced "recamming", the ability to adjust camera locations after recording. Paul Marino called the addition of this feature "a defining moment for [m]achinima". With Quake II filming now feasible, Strange Company's 1999 production Eschaton: Nightfall was the first work to feature entirely custom-made character models. The December 1999 release of id's Quake III Arena posed a problem to the Quake movie community. The game's demo file included information needed for computer networking; however, to prevent cheating, id warned of legal action for dissemination of the file format. Thus, it was impractical to enhance software to work with Quake III. Concurrently, the novelty of Quake movies was waning. New productions appeared less frequently, and, according to Marino, the community needed to "reinvent itself" to offset this development. Borg War, a 90-minute animated Star Trek fan film, was produced using Elite Force 2 (a Quake III variant) and Starfleet Command 3, repurposing the games' voiceover clips to create a new plot. Borg War was nominated for two "Mackie" awards by the Academy of Machinima Arts & Sciences. An August 2007 screening at a Star Trek convention in Las Vegas was the first time that CBS/Paramount had approved the screening of a non-parody fan film at a licensed convention. Generalization In January 2000, Hugh Hancock, the founder of Strange Company, launched a new website, machinima.com. A misspelled contraction of machine cinema (machinema), the term machinima was intended to dissociate in-game filming from a specific engine. The misspelling stuck because it also referenced anime. The new site featured tutorials, interviews, articles, and the exclusive release of Tritin Films' Quad God. The first film made with Quake III Arena, Quad God was also the first to be distributed as recorded video frames, not game-specific instructions. This change was initially controversial among machinima producers who preferred the smaller size of demo files. However, demo files required a copy of the game to view. The more accessible traditional video format broadened Quad Gods viewership, and the work was distributed on CDs bundled with magazines. Thus, id's decision to protect Quake IIIs code inadvertently caused machinima creators to use more general solutions and thus widen their audience. Within a few years, machinima films were almost exclusively distributed in common video file formats. Machinima began to receive mainstream notice. Roger Ebert discussed it in a June 2000 article and praised Strange Company's machinima setting of Percy Bysshe Shelley's sonnet "Ozymandias". At Showtime Network's 2001 Alternative Media Festival, the ILL Clan's 2000 machinima film Hardly Workin' won the Best Experimental and Best in SHO awards. Steven Spielberg used Unreal Tournament to test special effects while working on his 2001 film Artificial Intelligence: A.I. Eventually, interest spread to game developers. In July 2001, Epic Games announced that its upcoming game Unreal Tournament 2003 would include Matinee, a machinima production software utility. As involvement increased, filmmakers released fewer new productions to focus on quality. At the March 2002 Game Developers Conference, five machinima makers—Anthony Bailey, Hugh Hancock, Katherine Anna Kang, Paul Marino, and Matthew Ross—founded the AMAS, a non-profit organization dedicated to promoting machinima. At QuakeCon in August, the new organization held the first Machinima Film Festival, which received mainstream media coverage. Anachronox: The Movie, by Jake Hughes and Tom Hall, won three awards, including Best Picture. The next year, "In the Waiting Line", produced by Ghost Robot, directed by Tommy Pallotta and animated by Randy Cole, utilizing Fountainhead Entertainment's Machinimation tools, it became the first machinima music video to air on MTV. As graphics technology improved, machinima filmmakers used other video games and consumer-grade video editing software. Using Bungie's 2001 game Halo: Combat Evolved, Rooster Teeth Productions created a popular comedy series Red vs. Blue: The Blood Gulch Chronicles. The series' second season premiered at the Lincoln Center for the Performing Arts in 2004. Mainstream appearances Machinima has appeared on television, starting with G4's series Portal. MTV2's Video Mods re-creates music videos using characters from video games such as The Sims 2, BloodRayne, and Tribes. Blizzard Entertainment helped to set part of "Make Love, Not Warcraft", an Emmy Award–winning 2006 episode of the comedy series South Park, in its massively multiplayer online role-playing game (MMORPG) World of Warcraft. By purchasing broadcast rights to Douglas Gayeton's machinima documentary Molotov Alva and His Search for the Creator in September 2007, HBO became the first television network to buy a work created completely in a virtual world. In December 2008, machinima.com signed fifteen experienced television comedy writers—including Patric Verrone, Bill Oakley, and Mike Rowe—to produce episodes for the site. Commercial use of machinima has increased. Rooster Teeth sells DVDs of their Red vs. Blue series and, under sponsorship from Electronic Arts, helped to promote The Sims 2 by using the game to make a machinima series, The Strangerhood. Volvo Cars sponsored the creation of a 2004 advertisement, Game: On, the first film to combine machinima and live action. Later, Electronic Arts commissioned Rooster Teeth to promote their Madden NFL 07 video game. Blockhouse TV uses Moviestorm's machinima software to produce its pre-school educational DVD series Jack and Holly Game developers have continued to increase support for machinima. Products such as Lionhead Studios' 2005 business simulation game The Movies, Linden Research's virtual world Second Life, and Bungie's 2007 first-person shooter Halo 3 encourage the creation of user content by including machinima software tools. Using The Movies, Alex Chan, a French resident with no previous filmmaking experience, took four days to create The French Democracy, a short political film about the 2005 civil unrest in France. Third-party mods like Garry's Mod usually offer the ability to manipulate characters and take advantage of custom or migrated content, allowing for the creation of works like Counter-Strike For Kids that can be filmed using assets from multiple games. In a 2010 interview with PC Magazine, Valve CEO and co-founder Gabe Newell said that they wanted to make a Half-Life feature film themselves, rather than hand it off to a big-name director like Sam Raimi, and that their recent Team Fortress 2 "Meet The Team" machinima shorts were experiments in doing just that. Two years later, Valve released their proprietary non-linear machinima software, Source Filmmaker. Machinima has also been used for music video clips. Second Life virtual artist Bryn Oh created a work for Australian performer Megan Bernard's song "Clean Up Your Life", released in 2016. The first music video for 2018's "Old Town Road", by Lil Nas X, was composed entirely of footage from the 2018 Western action-adventure game Red Dead Redemption 2. Production Comparison to film techniques The AMAS defines machinima as "animated filmmaking within a real-time virtual 3-D environment". In other 3-D animation methods, creators can control every frame and nuance of their characters but, in turn, must consider issues such as key frames and inbetweening. Machinima creators leave many rendering details to their host environments, but may thus inherit those environments' limitations. Second Life Machinima film maker Ozymandius King provided a detailed account of the process by which the artists at MAGE Magazine produce their videos. "Organizing for a photo shoot is similar to organizing for a film production. Once you find the actors / models, you have to scout locations, find clothes and props for the models and type up a shooting script. The more organized you are the less time it takes to shoot the scene." Because game animations focus on dramatic rather than casual actions, the range of character emotions is often limited. However, Kelland, Morris, and Lloyd state that a small range of emotions is often sufficient, as in successful Japanese anime television series. Another difference is that machinima is created in real time, but other animation is pre-rendered. Real-time engines need to trade quality for speed and use simpler algorithms and models. In the 2001 animated film Final Fantasy: The Spirits Within, every strand of hair on a character's head was independent; real-time needs would likely force them to be treated as a single unit. Kelland, Morris, and Lloyd argue that improvement in consumer-grade graphics technology will allow more realism. Similarly, Paul Marino connects machinima to the increasing computing power predicted by Moore's law. For cut scenes in video games, issues other than visual fidelity arise. Pre-rendered scenes can require more digital storage space, weaken suspension of disbelief through contrast with real-time animation of normal gameplay, and limit interaction. Like live action, machinima is recorded in real-time, and real people can act and control the camera. Filmmakers are often encouraged to follow traditional cinematic conventions, such as avoiding wide fields of view, the overuse of slow motion, and errors in visual continuity. Unlike live action, machinima involves less expensive, digital special effects and sets, possibly with a science-fiction or historical theme. Explosions and stunts can be tried and repeated without monetary cost and risk of injury, and the host environment may allow unrealistic physical constraints. University of Cambridge experiments in 2002 and 2003 attempted to use machinima to re-create a scene from the 1942 live-action film Casablanca. Machinima filming differed from traditional cinematography in that character expression was limited, but camera movements were more flexible and improvised. Nitsche compared this experiment to an unpredictable Dogme 95 production. Berkeley sees machinima as "a strangely hybrid form, looking forwards and backwards, cutting edge and conservative at the same time". Machinima is a digital medium based on 3-D computer games, but most works have a linear narrative structure. Some, such as Red vs. Blue and The Strangerhood, follow narrative conventions of television situational comedy. Nitsche agrees that pre-recorded ("reel") machinima tends to be linear and offers limited interactive storytelling while machinima has more opportunities performed live and with audience interaction. In creating their improvisational comedy series On the Campaign Trail with Larry & Lenny Lumberjack and talk show Tra5hTa1k with ILL Will, the ILL Clan blended real and virtual performance by creating the works on-stage and interacting with a live audience. In another combination of real and virtual worlds, Chris Burke's talk show This Spartan Life takes place in Halo 2s open multiplayer environment. There, others playing in earnest may attack the host or his interviewee. Although other virtual theatrical performances have taken place in chat rooms and multi-user dungeons, machinima adds "cinematic camera work". Previously, such virtual cinematic performances with live audience interaction were confined to research labs equipped with powerful computers. Machinima can be less expensive than other forms of filmmaking. Strange Company produced its feature-length machinima film BloodSpell for less than £10,000. Before using machinima, Burnie Burns and Matt Hullum of Rooster Teeth Productions spent US$9,000 to produce a live-action independent film. In contrast, the four Xbox game consoles used to make Red vs. Blue in 2005 cost $600. The low cost caused a product manager for Electronic Arts to compare machinima to the low-budget independent film The Blair Witch Project, without the need for cameras and actors. Because these are seen as low barriers to entry, machinima has been called a "democratization of filmmaking". Berkeley weighs increased participation and a blurred line between producer and consumer against concerns that game copyrights limit commercialization and growth of machinima. Comparatively, machinimists using pre-made virtual platforms like Second Life have indicated that their productions can be made quite successfully with no cost at all. Creators like Dutch director Chantal Harvey, producer of the 48 Hour Film Project Machinima sector, have created upwards of 200 films using the platform. Harvey's advocacy of the genre has resulted in the involvement of film director Peter Greenaway who served as a juror for the Machinima category and gave a keynote speech during the event. Character and camera control Kelland, Morris, and Lloyd list four main methods of creating machinima. From simple to advanced, these are: relying on the game's AI to control most actions, digital puppetry, recamming, and precise scripting of actions. Although simple to produce, AI-dependent results are unpredictable, thus complicating the realization of a preconceived film script. For example, when Rooster Teeth produced The Strangerhood using The Sims 2, a game that encourages the use of its AI, the group had to create multiple instances of each character to accommodate different moods. Individual instances were selected at different times to produce appropriate actions. In digital puppetry, machinima creators become virtual actors. Each crew member controls a character in real-time, as in a multiplayer game. The director can use built-in camera controls, if available. Otherwise, video is captured from the perspectives of one or more puppeteers who serve as camera operators. Puppetry allows for improvisation and offers controls familiar to gamers, but requires more personnel than the other methods and is less precise than scripted recordings. However, some games, such as the Halo series, (except for Halo PC and Custom Edition, which allow AI and custom objects and characters), allow filming only through puppetry. According to Marino, other disadvantages are the possibility of disruption when filming in an open multi-user environment and the temptation for puppeteers to play the game in earnest, littering the set with blood and dead bodies. However, Chris Burke intentionally hosts This Spartan Life in these unpredictable conditions, which are fundamental to the show. Other works filmed using puppetry are the ILL Clan's improvisational comedy series On the Campaign Trail with Larry & Lenny Lumberjack and Rooster Teeth Productions' Red vs. Blue. In recamming, which builds on puppetry, actions are first recorded to a game engine's demo file format, not directly as video frames. Without re-enacting scenes, artists can then manipulate the demo files to add cameras, tweak timing and lighting, and change the surroundings. This technique is limited to the few engines and software tools that support it. A technique common in cut scenes of video games, scripting consists of giving precise directions to the game engine. A filmmaker can work alone this way, as J. Thaddeus "Mindcrime" Skubis did in creating the nearly four-hour The Seal of Nehahra (2000), the longest work of machinima at the time. However, perfecting scripts can be time-consuming. Unless what-you-see-is-what-you-get (WYSIWYG) editing is available, as in Vampire: The Masquerade – Redemption, changes may need to be verified in additional runs, and non-linear editing may be difficult. In this respect, Kelland, Morris, and Lloyd compare scripting to stop-motion animation. Another disadvantage is that, depending on the game, scripting capabilities may be limited or unavailable. Matinee, a machinima software tool included with Unreal Tournament 2004, popularized scripting in machinima. Limitations and solutions When Diary of a Camper was created, no software tools existed to edit demo files into films. Rangers clan member Eric "ArchV" Fowler wrote his own programs to reposition the camera and to splice footage from the Quake demo file. Quake movie editing software later appeared, but the use of conventional non-linear video editing software is now common. For example, Phil South inserted single, completely white frames into his work No Licence to enhance the visual impact of explosions. In the post-production of Red vs. Blue: The Blood Gulch Chronicles, Rooster Teeth Productions added letterboxing with Adobe Premiere Pro to hide the camera player's head-up display. Machinima creators have used different methods to handle limited character expression. The most typical ways that amateur-style machinima gets around limitations of expression include taking advantage of speech bubbles seen above players' heads when speaking, relying on the visual matching between a character's voice and appearance, and finding methods available within the game itself. Garry's Mod and Source Filmmaker include the ability to manipulate characters and objects in real-time, though the former relies on community addons to take advantage of certain engine features, and the latter renders scenes using non-real-time effects. In the Halo video game series, helmets completely cover the characters' faces. To prevent confusion, Rooster Teeth's characters move slightly when speaking, a convention shared with anime. Some machinima creators use custom software. For example, Strange Company uses Take Over GL Face Skins to add more facial expressions to their characters filmed in BioWare's 2002 role-playing video game Neverwinter Nights. Similarly, Atussa Simon used a "library of faces" for characters in The Battle of Xerxes. Some software, such as Epic Games' Impersonator for Unreal Tournament 2004 and Valve's Faceposer for Source games, have been provided by the developer. Another solution is to blend in non-machinima elements, as nGame did by inserting painted characters with more expressive faces into its 1999 film Berlin Assassins. It may be possible to point the camera elsewhere or employ other creative cinematography or acting. For example, Tristan Pope combined creative character and camera positioning with video editing to suggest sexual actions in his controversial film Not Just Another Love Story. Legal issues New machinima filmmakers often want to use game-provided digital assets, but doing so raises legal issues. As derivative works, their films could violate copyright or be controlled by the assets' copyright holder, an arrangement that can be complicated by separate publishing and licensing rights. The software license agreement for The Movies stipulates that Activision, the game's publisher, owns "any and all content within... Game Movies that was either supplied with the Program or otherwise made available... by Activision or its licensors..." Some game companies provide software to modify their own games, and machinima makers often cite fair use as a defense, but the issue has never been tested in court. A potential problem with this defense is that many works, such as Red vs. Blue, focus more on satire, which is not as explicitly protected by fair use as parody. Berkeley adds that, even if machinima artists use their own assets, their works could be ruled derivative if filmed in a proprietary engine. The risk inherent in a fair-use defense would cause most machinima artists simply to yield to a cease-and-desist order. The AMAS has attempted to negotiate solutions with video game companies, arguing that an open-source or reasonably priced alternative would emerge from an unfavorable situation. Unlike The Movies, some dedicated machinima software programs, such as Reallusion's iClone, have licenses that avoid claiming ownership of users' films featuring bundled assets. Generally, companies want to retain creative control over their intellectual properties and are wary of fan-created works, like fan fiction. However, because machinima provides free marketing, they have avoided a response demanding strict copyright enforcement. In 2003, Linden Lab was praised for changing license terms to allow users to retain ownership of works created in its virtual world Second Life. Rooster Teeth initially tried to release Red vs. Blue unnoticed by Halos owners because they feared that any communication would force them to end the project. However, Microsoft, Bungie's parent company at the time, contacted the group shortly after episode 2, and allowed them to continue without paying licensing fees. A case in which developer control was asserted involved Blizzard Entertainment's action against Tristan Pope's Not Just Another Love Story. Blizzard's community managers encouraged users to post game movies and screenshots, but viewers complained that Pope's suggestion of sexual actions through creative camera and character positioning was pornographic. Citing the user license agreement, Blizzard closed discussion threads about the film and prohibited links to it. Although Pope accepted Blizzard's right to some control, he remained concerned about censorship of material that already existed in-game in some form. Discussion ensued about boundaries between MMORPG player and developer control. Lowood asserted that this controversy demonstrated that machinima could be a medium of negotiation for players. Microsoft and Blizzard In August 2007, Microsoft issued its Game Content Usage Rules, a license intended to address the legal status of machinima based on its games, including the Halo series. Microsoft intended the rules to be "flexible", and, because it was unilateral, the license was legally unable to reduce rights. However, machinima artists, such as Edgeworks Entertainment, protested the prohibitions on extending Microsoft's fictional universes (a common component of fan fiction) and on selling anything from sites hosting derivative works. Compounding the reaction was the license's statement, "If you do any of these things, you can expect to hear from Microsoft's lawyers who will tell you that you have to stop distributing your items right away." Surprised by the negative feedback, Microsoft revised and reissued the license after discussion with Hugh Hancock and an attorney for the Electronic Frontier Foundation. The rules allow noncommercial use and distribution of works derived from Microsoft-owned game content, except audio effects and soundtracks. The license prohibits reverse engineering and material that is pornographic or otherwise "objectionable". On distribution, derivative works that elaborate on a game's fictional universe or story are automatically licensed to Microsoft and its business partners. This prevents legal problems if a fan and Microsoft independently conceive similar plots. A few weeks later, Blizzard Entertainment posted on WorldofWarcraft.com their "Letter to the Machinimators of the World", a license for noncommercial use of game content. It differs from Microsoft's declaration in that it addresses machinima specifically instead of general game-derived content, allows use of game audio if Blizzard can legally license it, requires derivative material to meet the Entertainment Software Rating Board's Teen content rating guideline, defines noncommercial use differently, and does not address extensions of fictional universes. Hayes states that, although licensees' benefits are limited, the licenses reduce reliance on fair use regarding machinima. In turn, this recognition may reduce film festivals' concerns about copyright clearance. In an earlier analogous situation, festivals were concerned about documentary films until best practices for them were developed. According to Hayes, Microsoft and Blizzard helped themselves through their licenses because fan creations provide free publicity and are unlikely to harm sales. If the companies had instead sued for copyright infringement, defendants could have claimed estoppel or implied license because machinima had been unaddressed for a long time. Thus, these licenses secured their issuers' legal rights. Even though other companies, such as Electronic Arts, have encouraged machinima, they have avoided licensing it. Because of the involved legal complexity, they may prefer to under-enforce copyrights. Hayes believes that this legal uncertainty is a suboptimal solution and that, though limited and "idiosyncratic", the Microsoft and Blizzard licenses move towards an ideal video gaming industry standard for handling derivative works. Semiotic mode Just as machinima can be the cause of legal dispute in copyright ownership and illegal use, it makes heavy use of intertextuality and raises the question of authorship. Machinima takes copyrighted property (such as characters in a game engine) and repurposes it to tell a story, but another common practice in machinima-making is to retell an existing story from a different medium in that engine. This re-appropriation of established texts, resources, and artistic properties to tell a story or make a statement is an example of a semiotic phenomenon known as intertextuality or resemiosis. A more common term for this phenomenon is "parody", but not all of these intertextual productions are intended for humor or satire, as demonstrated by the Few Good G-Men video. Furthermore, the argument of how well-protected machinima is under the guise of parody or satire is still highly debated. A piece of machinima may be reliant upon a protected property, but may not necessarily be making a statement about that property. Therefore, it is more accurate to refer to it simply as resemiosis, because it takes an artistic work and presents it in a new way, form, or medium. This resemiosis can be manifested in a number of ways. The machinima-maker can be considered an author who restructures the story and/or the world that the chosen game engine is built around. In the popular web series Red vs. Blue, most of the storyline takes place within the game engine of Halo: Combat Evolved and its subsequent sequels. Halo: Combat Evolved has an extensive storyline already, but Red vs. Blue only ever makes mention of this storyline once in the first episode. Even after over 200 episodes of the show being broadcast onto the Internet since 2003, the only real similarities that can be drawn between Red vs. Blue and the game-world it takes place in are the character models, props, vehicles, and settings. Yet Burnie Burns and the machinima team at Rooster Teeth created an extensive storyline of their own using these game resources. The ability to re-appropriate a game engine to film a video demonstrates intertextuality because it is an obvious example of art being a product of creation-through-manipulation rather than creation per se. The art historian Ernst Gombrich likened art to the "manipulation of a vocabulary" and this can be demonstrated in the creation of machinima. When using a game world to create a story, the author is influenced by the engine. For example, since so many video games are built around the concept of war, a significant portion of machinima films also take place in war-like environments. Intertextuality is further demonstrated in machinima not only in the re-appropriation of content but in artistic and communicatory techniques. Machinima by definition is a form of puppetry, and thus this new form of digital puppetry employs age-old techniques from the traditional artform. It is also, however, a form of filmmaking, and must employ filmmaking techniques such as camera angles and proper lighting. Some machinima takes place in online environments with participants, actors, and "puppeteers" working together from thousands of miles apart. This means other techniques born from long-distance communication must also be employed. Thus, techniques and practices that would normally never be used in conjunction with one another in the creation of an artistic work end up being used intertextually in the creation of machinima. Another way that machinima demonstrates intertextuality is in its tendency to make frequent references to texts, works, and other media just like TV ads or humorous cartoons such as The Simpsons might do. For example, the machinima series Freeman's Mind, created by Ross Scott, is filmed by taking a recording of Scott playing through the game Half Life as a player normally would and combining it with a voiceover (also recorded by Scott) to emulate an inner monologue of the normally voiceless protagonist Gordon Freeman. Scott portrays Freeman as a snarky, sociopathic character who makes frequent references to works and texts including science fiction, horror films, action movies, American history, and renowned novels such as Moby Dick. These references to works outside the game, often triggered by events within the game, are prime examples of the densely intertextual nature of machinima. Common genres Nitsche and Lowood describe two methods of approaching machinima: starting from a video game and seeking a medium for expression or for documenting gameplay ("inside-out"), and starting outside a game and using it merely as animation tool ("outside-in"). Kelland, Morris, and Lloyd similarly distinguish between works that retain noticeable connections to games, and those closer to traditional animation. Belonging to the former category, gameplay and stunt machinima began in 1997 with Quake done Quick. Although not the first speedrunners, its creators used external software to manipulate camera positions after recording, which, according to Lowood, elevated speedrunning "from cyberathleticism to making movies". Stunt machinima remains popular. Kelland, Morris, and Lloyd state that Halo: Combat Evolved stunt videos offer a new way to look at the game, and compare Battlefield 1942 machinima creators to the Harlem Globetrotters. Built-in features for video editing and post-recording camera positioning in Halo 3 were expected to facilitate gameplay-based machinima. MMORPGs and other virtual worlds have been captured in documentary films, such as Miss Galaxies 2004, a beauty pageant that took place in the virtual world of Star Wars Galaxies. Footage was distributed in the cover disc of the August 2004 issue of PC Gamer. Douglas Gayeton's Molotov Alva and His Search for the Creator documents the title character's interactions in Second Life. Gaming-related comedy offers another possible entry point for new machinima producers. Presented as five-minute sketches, many machinima comedies are analogous to Internet Flash animations. After Clan Undead's 1997 work Operation Bayshield built on the earliest Quake movies by introducing narrative conventions of linear media and sketch comedy reminiscent of the television show Saturday Night Live, the New-York-based ILL Clan further developed the genre in machinima through works including Apartment Huntin' and Hardly Workin'. Red vs. Blue: The Blood Gulch Chronicles chronicles a futile civil war over five seasons and 100 episodes. Marino wrote that although the series' humor was rooted in video games, strong writing and characters caused the series to "transcend the typical gamer". An example of a comedy film that targets a more general audience is Strange Company's Tum Raider, produced for the BBC in 2004. Machinima has been used in music videos, of which the first documented example is Ken Thain's 2002 "Rebel vs. Thug", made in collaboration with Chuck D. For this, Thain used Quake2Max, a modification of Quake II that provided cel-shaded animation. The following year, Tommy Pallotta directed "In the Waiting Line" for the British group Zero 7. He told Computer Graphics World, "It probably would have been quicker to do the film in a 3D animated program. But now, we can reuse the assets in an improvisational way." Scenes of the game Postal 2 can be seen in the music video of the Black Eyed Peas single "Where Is the Love?". In television, MTV features video game characters on its show Video Mods. Among World of Warcraft players, dance and music videos became popular after dancing animations were discovered in the game. Others use machinima in drama. These works may or may not retain signs of their video game provenance. Unreal Tournament is often used for science fiction and Battlefield 1942 for war, but some artists subvert their chosen game's setting or completely detach their work from it. In 1999, Strange Company used Quake II in Eschaton: Nightfall, a horror film based on the work of H. P. Lovecraft (although Quake I was also based on the Lovecraft lore). A later example is Damien Valentine's series Consanguinity, made using BioWare's 2002 computer game Neverwinter Nights and based on the television series Buffy the Vampire Slayer. Another genre consists of experimental works that attempt to push the boundaries of game engines. One example, Fountainhead's Anna, is a short film that focuses on the cycle of life and is reminiscent of Fantasia. Other productions go farther and completely eschew a 3-D appearance. Friedrich Kirschner's The Tournament and The Journey deliberately appear hand-drawn, and Dead on Que's Fake Science resembles two-dimensional Eastern European modernist animation from the 1970s. Another derivative genre termed machinima verite, from cinéma vérité, seeks to add a documentary and additional realism to the machinima piece. L.M. Sabo's CATACLYSM achieves a machinima verite style through displaying and recapturing the machinima video with a low resolution black and white hand-held video camera to produce a shaky camera effect. Other element of cinéma vérité, such as longer takes, sweeping camera transitions, and jump cuts may be included to complete the effect. Some have used machinima to make political statements, often from left-wing perspectives. Alex Chan's take on the 2005 civil unrest in France, The French Democracy, attained mainstream attention and inspired other machinima commentaries on American and British society. Horwatt deemed Thuyen Nguyen's 2006 An Unfair War, a criticism of the Iraq War, similar in its attempt "to speak for those who cannot". Joshua Garrison mimicked Chan's "political pseudo-documentary style" in his Virginia Tech Massacre, a controversial Halo 3–based re-enactment and explanation of the eponymous real-life events. More recently, War of Internet Addiction addressed internet censorship in China using World of Warcraft. Competitions After the QML's Quake Movie Oscars, dedicated machinima awards did not reappear until the AMAS created the Mackies for its first Machinima Film Festival in 2002. The annual festival has become an important one for machinima creators. Ho Chee Yue, a founder of the marketing company AKQA, helped to organize the first festival for the Asia chapter of the AMAS in 2006. In 2007, the AMAS supported the first machinima festival held in Europe. In addition to these smaller ceremonies, Hugh Hancock of Strange Company worked to add an award for machinima to the more general Bitfilm Festival in 2003. Other general festivals that allow machinima include the Sundance Film Festival, the Florida Film Festival, and the New Media Film Festival. The Ottawa International Animation Festival opened a machinima category in 2004, but, citing the need for "a certain level of excellence", declined to award anything to the category's four entries that year. Machinima has been showcased in contests sponsored by game companies. Epic Games' popular Make Something Unreal contest included machinima that impressed event organizer Jeff Morris because of "the quality of entries that really push the technology, that accomplish things that Epic never envisioned". In December 2005, Blizzard Entertainment and Xfire, a gaming-focused instant messaging service, jointly sponsored a World of Warcraft machinima contest. See also 3DMM Computer animation Computer-generated imagery 1996 in machinima 2003 in machinima 2004 in machinima 2005 in machinima 2006 in machinima 2007 in machinima Overwatch and pornography Notes References —Also as: Further reading External links Animation technology Articles containing video clips Emergent gameplay Film styles Works based on video games

19599

https://en.wikipedia.org/wiki/Mutagenesis

Mutagenesis

Mutagenesis is a process by which the genetic information of an organism is changed by the production of a mutation. It may occur spontaneously in nature, or as a result of exposure to mutagens. It can also be achieved experimentally using laboratory procedures. A mutagen is a mutation-causing agent, be it chemical or physical, which results in an increased rate of mutations in an organism's genetic code. In nature mutagenesis can lead to cancer and various heritable diseases, but it is also a driving force of evolution. Mutagenesis as a science was developed based on work done by Hermann Muller, Charlotte Auerbach and J. M. Robson in the first half of the 20th century. History DNA may be modified, either naturally or artificially, by a number of physical, chemical and biological agents, resulting in mutations. Hermann Muller found that "high temperatures" have the ability to mutate genes in the early 1920s, and in 1927, demonstrated a causal link to mutation upon experimenting with an x-ray machine, noting phylogenetic changes when irradiating fruit flies with relatively high dose of X-rays. Muller observed a number of chromosome rearrangements in his experiments, and suggested mutation as a cause of cancer. The association of exposure to radiation and cancer had been observed as early as 1902, six years after the discovery of X-ray by Wilhelm Röntgen, and the discovery of radioactivity by Henri Becquerel. Lewis Stadler, Muller's contemporary, also showed the effect of X-rays on mutations in barley in 1928, and of ultraviolet (UV) radiation on maize in 1936. In 1940s, Charlotte Auerbach and J. M. Robson found that mustard gas can also cause mutations in fruit flies. While changes to the chromosome caused by X-ray and mustard gas were readily observable to early researchers, other changes to the DNA induced by other mutagens were not so easily observable; the mechanism by which they occur may be complex, and take longer to unravel. For example, soot was suggested to be a cause of cancer as early as 1775, and coal tar was demonstrated to cause cancer in 1915. The chemicals involved in both were later shown to be polycyclic aromatic hydrocarbons (PAH). PAHs by themselves are not carcinogenic, and it was proposed in 1950 that the carcinogenic forms of PAHs are the oxides produced as metabolites from cellular processes. The metabolic process was identified in 1960s as catalysis by cytochrome P450, which produces reactive species that can interact with the DNA to form adducts, or product molecules resulting from the reaction of DNA and, in this case, cytochrome P450; the mechanism by which the PAH adducts give rise to mutation, however, is still under investigation. Distinction between a mutation and DNA damage DNA damage is an abnormal alteration in the structure of DNA that cannot, itself, be replicated when DNA replicates. In contrast, a mutation is a change in the nucleic acid sequence that can be replicated; hence, a mutation can be inherited from one generation to the next. Damage can occur from chemical addition (adduct), or structural disruption to a base of DNA (creating an abnormal nucleotide or nucleotide fragment), or a break in one or both DNA strands. Such DNA damage may result in mutation. When DNA containing damage is replicated, an incorrect base may be inserted in the new complementary strand as it is being synthesized (see DNA repair § Translesion synthesis). The incorrect insertion in the new strand will occur opposite the damaged site in the template strand, and this incorrect insertion can become a mutation (i.e. a changed base pair) in the next round of replication. Furthermore, double-strand breaks in DNA may be repaired by an inaccurate repair process, non-homologous end joining, which produces mutations. Mutations can ordinarily be avoided if accurate DNA repair systems recognize DNA damage and repair it prior to completion of the next round of replication. At least 169 enzymes are either directly employed in DNA repair or influence DNA repair processes. Of these, 83 are directly employed in the 5 types of DNA repair processes indicated in the chart shown in the article DNA repair. Mammalian nuclear DNA may sustain more than 60,000 damage episodes per cell per day, as listed with references in DNA damage (naturally occurring). If left uncorrected, these adducts, after misreplication past the damaged sites, can give rise to mutations. In nature, the mutations that arise may be beneficial or deleterious—this is the driving force of evolution. An organism may acquire new traits through genetic mutation, but mutation may also result in impaired function of the genes and, in severe cases, causes the death of the organism. Mutation is also a major source for acquisition of resistance to antibiotics in bacteria, and to antifungal agents in yeasts and molds. In a laboratory setting, mutagenesis is a useful technique for generating mutations that allows the functions of genes and gene products to be examined in detail, producing proteins with improved characteristics or novel functions, as well as mutant strains with useful properties. Initially, the ability of radiation and chemical mutagens to cause mutation was exploited to generate random mutations, but later techniques were developed to introduce specific mutations. In humans, an average of 60 new mutations are transmitted from parent to offspring. Human males, however, tend to pass on more mutations depending on their age, transmitting an average of two new mutations to their progeny with every additional year of their age. Mechanisms Mutagenesis may occur endogenously (e.g. spontaneous hydrolysis), through normal cellular processes that can generate reactive oxygen species and DNA adducts, or through error in DNA replication and repair. Mutagenesis may also occur as a result of the presence of environmental mutagens that induce changes to an organism's DNA. The mechanism by which mutation occurs varies according to the mutagen, or the causative agent, involved. Most mutagens act either directly, or indirectly via mutagenic metabolites, on an organism's DNA, producing lesions. Some mutagens, however, may affect the replication or chromosomal partition mechanism, and other cellular processes. Mutagenesis may also be self-induced by unicellular organisms when environmental conditions are restrictive to the organism's growth, such as bacteria growing in the presence of antibiotics, yeast growing in the presence of an antifungal agent, or other unicellular organisms growing in an environment lacking in an essential nutrient Many chemical mutagens require biological activation to become mutagenic. An important group of enzymes involved in the generation of mutagenic metabolites is cytochrome P450. Other enzymes that may also produce mutagenic metabolites include glutathione S-transferase and microsomal epoxide hydrolase. Mutagens that are not mutagenic by themselves but require biological activation are called promutagens. While most mutagens produce effects that ultimately result in errors in replication, for example creating adducts that interfere with replication, some mutagens may directly affect the replication process or reduce its fidelity. Base analog such as 5-bromouracil may substitute for thymine in replication. Metals such as cadmium, chromium, and nickel can increase mutagenesis in a number of ways in addition to direct DNA damage, for example reducing the ability to repair errors, as well as producing epigenetic changes. Mutations often arise as a result of problems caused by DNA lesions during replication, resulting in errors in replication. In bacteria, extensive damage to DNA due to mutagens results in single-stranded DNA gaps during replication. This induces the SOS response, an emergency repair process that is also error-prone, thereby generating mutations. In mammalian cells, stalling of replication at damaged sites induces a number of rescue mechanisms that help bypass DNA lesions, however, this may also result in errors. The Y family of DNA polymerases specializes in DNA lesion bypass in a process termed translesion synthesis (TLS) whereby these lesion-bypass polymerases replace the stalled high-fidelity replicative DNA polymerase, transit the lesion and extend the DNA until the lesion has been passed so that normal replication can resume; these processes may be error-prone or error-free. DNA damage and spontaneous mutation The number of DNA damage episodes occurring in a mammalian cell per day is high (more than 60,000 per day). Frequent occurrence of DNA damage is likely a problem for all DNA- containing organisms, and the need to cope with DNA damage and minimize their deleterious effects is likely a fundamental problem for life. Most spontaneous mutations likely arise from error-prone trans-lesion synthesis past a DNA damage site in the template strand during DNA replication. This process can overcome potentially lethal blockages, but at the cost of introducing inaccuracies in daughter DNA. The causal relationship of DNA damage to spontaneous mutation is illustrated by aerobically growing E. coli bacteria, in which 89% of spontaneously occurring base substitution mutations are caused by reactive oxygen species (ROS)-induced DNA damage. In yeast, more than 60% of spontaneous single-base pair substitutions and deletions are likely caused by trans-lesion synthesis. An additional significant source of mutations in eukaryotes is the inaccurate DNA repair process non-homologous end joining, that is often employed in repair of double strand breaks. In general, it appears that the main underlying cause of spontaneous mutation is error-prone trans-lesion synthesis during DNA replication and that the error-prone non-homologous end-joining repair pathway may also be an important contributor in eukaryotes. Spontaneous hydrolysis DNA is not entirely stable in aqueous solution, and depurination of the DNA can occur. Under physiological conditions the glycosidic bond may be hydrolyzed spontaneously and 10,000 purine sites in DNA are estimated to be depurinated each day in a cell. Numerous DNA repair pathways exist for DNA; however, if the apurinic site is not repaired, misincorporation of nucleotides may occur during replication. Adenine is preferentially incorporated by DNA polymerases in an apurinic site. Cytidine may also become deaminated to uridine at one five-hundredth of the rate of depurination and can result in G to A transition. Eukaryotic cells also contain 5-methylcytosine, thought to be involved in the control of gene transcription, which can become deaminated into thymine. Tautomerism Tautomerization is the process by which compounds spontaneously rearrange themselves to assume their structural isomer forms. For example, the keto (C=O) forms of guanine and thymine can rearrange into their rare enol (-OH) forms, while the amino (-NH2 ) forms of adenine and cytosine can result in the rarer imino (=NH) forms. In DNA replication, tautomerization alters the base-pairing sites and can cause the improper pairing of nucleic acid bases. Modification of bases Bases may be modified endogenously by normal cellular molecules. For example, DNA may be methylated by S-adenosylmethionine, thus altering the expression of the marked gene without incurring a mutation to the DNA sequence itself. Histone modification is a related process in which the histone proteins around which DNA coils can be similarly modified via methylation, phosphorylation, or acetylation; these modifications may act to alter gene expression of the local DNA, and may also act to denote locations of damaged DNA in need of repair. DNA may also be glycosylated by reducing sugars. Many compounds, such as PAHs, aromatic amines, aflatoxin and pyrrolizidine alkaloids, may form reactive oxygen species catalyzed by cytochrome P450. These metabolites form adducts with the DNA, which can cause errors in replication, and the bulky aromatic adducts may form stable intercalation between bases and block replication. The adducts may also induce conformational changes in the DNA. Some adducts may also result in the depurination of the DNA; it is, however, uncertain how significant such depurination as caused by the adducts is in generating mutation. Alkylation and arylation of bases can cause errors in replication. Some alkylating agents such as N-Nitrosamines may require the catalytic reaction of cytochrome-P450 for the formation of a reactive alkyl cation. N7 and O6 of guanine and the N3 and N7 of adenine are most susceptible to attack. N7-guanine adducts form the bulk of DNA adducts, but they appear to be non-mutagenic. Alkylation at O6 of guanine, however, is harmful because excision repair of O6-adduct of guanine may be poor in some tissues such as the brain. The O6 methylation of guanine can result in G to A transition, while O4-methylthymine can be mispaired with guanine. The type of the mutation generated, however, may be dependent on the size and type of the adduct as well as the DNA sequence. Ionizing radiation and reactive oxygen species often oxidize guanine to produce 8-oxoguanine. Backbone damage Ionizing radiation may produce highly reactive free radicals that can break the bonds in the DNA. Double-stranded breakages are especially damaging and hard to repair, producing translocation and deletion of part of a chromosome. Alkylating agents like mustard gas may also cause breakages in the DNA backbone. Oxidative stress may also generate highly reactive oxygen species that can damage DNA. Incorrect repair of other damage induced by the highly reactive species can also lead to mutations. Crosslinking Covalent bonds between the bases of nucleotides in DNA, be they in the same strand or opposing strands, is referred to as crosslinking of DNA; crosslinking of DNA may affect both the replication and the transcription of DNA, and it may be caused by exposure to a variety of agents. Some naturally occurring chemicals may also promote crosslinking, such as psoralens after activation by UV radiation, and nitrous acid. Interstrand cross-linking (between two strands) causes more damage, as it blocks replication and transcription and can cause chromosomal breakages and rearrangements. Some crosslinkers such as cyclophosphamide, mitomycin C and cisplatin are used as anticancer chemotherapeutic because of their high degree of toxicity to proliferating cells. Dimerization Dimerization consists of the bonding of two monomers to form an oligomer, such as the formation of pyrimidine dimers as a result of exposure to UV radiation, which promotes the formation of a cyclobutyl ring between adjacent thymines in DNA. In human skin cells, thousands of dimers may be formed in a day due to normal exposure to sunlight. DNA polymerase η may help bypass these lesions in an error-free manner; however, individuals with defective DNA repair function, such as sufferers of xeroderma pigmentosum, are sensitive to sunlight and may be prone to skin cancer. Intercalation between bases The planar structure of chemicals such as ethidium bromide and proflavine allows them to insert between bases in DNA. This insert causes the DNA's backbone to stretch and makes slippage in DNA during replication more likely to occur since the bonding between the strands is made less stable by the stretching. Forward slippage will result in deletion mutation, while reverse slippage will result in an insertion mutation. Also, the intercalation into DNA of anthracyclines such as daunorubicin and doxorubicin interferes with the functioning of the enzyme topoisomerase II, blocking replication as well as causing mitotic homologous recombination. Insertional mutagenesis Transposons and viruses may insert DNA sequences into coding regions or functional elements of a gene and result in inactivation of the gene. Adaptive mutagenesis mechanisms Adaptive mutagenesis has been defined as mutagenesis mechanisms that enable an organism to adapt to an environmental stress. Since the variety of environmental stresses is very broad, the mechanisms that enable it are also quite broad, as far as research on the field has shown. For instance, in bacteria, while modulation of the SOS response and endogenous prophage DNA synthesis has been shown to increase Acinetobacter baumannii resistance to ciprofloxacin. Resistance mechanisms are presumed to be linked to chromosomal mutation untransferable via horizontal gene transfer in some members of family Enterobacteriaceae, such as E. coli, Salmonella spp., Klebsiella spp., and Enterobacter spp. Chromosomal events, specially gene amplification, seem also to be relevant to this adaptive mutagenesis in bacteria. Research in eukaryotic cells is much scarcer, but chromosomal events seem also to be rather relevant: while an ectopic intrachromosomal recombination has been reported to be involved in acquisition of resistance to 5-fluorocytosine in Saccharomyces cerevisiae, genome duplications have been found to confer resistance in S. cerevisiae to nutrient-poor environments. Laboratory Applications In the laboratory, mutagenesis is a technique by which DNA mutations are deliberately engineered to produce mutant genes, proteins, or strains of organisms. Various constituents of a gene, such as its control elements and its gene product, may be mutated so that the function of a gene or protein can be examined in detail. The mutation may also produce mutant proteins with altered properties, or enhanced or novel functions that may prove to be of use commercially. Mutant strains of organisms that have practical applications, or allow the molecular basis of particular cell function to be investigated, may also be produced. Early methods of mutagenesis produced entirely random mutations; however, modern methods of mutagenesis are capable of producing site-specific mutations. Modern laboratory techniques used to generate these mutations include: Directed mutagenesis Site-directed mutagenesis/ PCR mutagenesis Insertional mutagenesis Signature tagged mutagenesis Transposon mutagenesis Sequence saturation mutagenesis See also References

19602

https://en.wikipedia.org/wiki/Mackenzie%20Bowell

Mackenzie Bowell

Sir Mackenzie Bowell (; December 27, 1823 – December 10, 1917) was a Canadian newspaper publisher and politician, who served as the fifth prime minister of Canada, in office from 1894 to 1896. Bowell was born in Rickinghall, Suffolk, England. He and his family moved to Belleville, Ontario, in 1832. When in his early teens, Bowell was apprenticed to the printing shop of the local newspaper, the Belleville Intelligencer, and some 15 years later, became its owner and proprietor. In 1867, following Confederation, he was elected to the House of Commons for the Conservative Party. Bowell entered cabinet in 1878, and would serve under three prime ministers: John A. Macdonald, John Abbott, and John Thompson. He served variously as Minister of Customs (1878–1892), Minister of Militia and Defence (1892), and Minister of Trade and Commerce (1892–1894). Bowell kept his Commons seat continuously for 25 years, through a period of Liberal Party rule in the 1870s. In 1892, Bowell was appointed to the Senate. He became Leader of the Government in the Senate the following year. In December 1894, Prime Minister Thompson unexpectedly died in office. The Earl of Aberdeen, Canada's governor general, appointed Bowell to replace Thompson as prime minister, due to his status as the most senior cabinet member. The main problem of Bowell's tenure as prime minister was the Manitoba Schools Question. His attempts at compromise alienated members of his own party, and following a Cabinet revolt in early 1896 he was forced to resign in favour of Charles Tupper. Bowell stayed on as a senator until his death at the age of 93, but never again held ministerial office; he served continuously as a Canadian parliamentarian for 50 years. Early life, career, and family Bowell was born in Rickinghall, England, to John Bowell and Elizabeth Marshall. In 1832 his family emigrated to Belleville, Upper Canada, where he apprenticed with the printer at the town newspaper, The Belleville Intelligencer. He became a successful printer and editor with that newspaper, and later its owner. He was a Freemason and an Orangeman, serving as grandmaster of the Orange Order of British North America, 1870–1878. In 1847 he married Harriet Moore, with whom he had five sons and four daughters. Military Service A keen supporter of the militia in Hastings County, he was appointed an Ensign in the 1st Belleville Militia on July 24th, 1856. He helped organize the Belleville Volunteer Militia Rifle Company in 1857 whom he served with on active duty at Amherstburg, Upper Canada, during the Trent Affair. He joined the 15th Belleville Battalion (The Argyll Light Infantry) in 1863, being promoted to Captain and fought in the Fenian Raids of 1866, serving at Prescott and being awarded the Canada General Service Medal. He was promoted to Major in the 49th (Hastings) Battalion of Rifles on February 22nd, 1867 and qualified for the First Class Certificate at the Military School of Instruction on March 1st. He was promoted to Brevet Lieutenant Colonel on February 22nd, 1872 and retired from the militia on March 24th, 1874 with the rank of lieutenant-colonel in that regiment. Elected to Parliament Bowell was first elected to the House of Commons in 1867 as a Conservative for the riding of Hastings North, Ontario. He held his seat for the Conservatives when they lost the election of January 1874, in the wake of the Pacific Scandal. Later that year he was instrumental in having Louis Riel expelled from the House. Appointed to Cabinet, Senator In 1878, with the Conservatives again governing, he joined the Cabinet as minister of customs. In 1892 he became minister of militia and defence, having held his Commons seat continuously for 25 years. A competent, hardworking administrator, Bowell remained in Cabinet as minister of trade and commerce, a newly created portfolio, after he became a senator that same year. His visit to Australia in 1893 led to the first leaders' conference of British colonies and territories, held in Ottawa in 1894. He became leader of the government in the Senate on October 31, 1893. Prime Minister (1894–1896) In December 1894, Prime Minister John Sparrow David Thompson died suddenly, and Bowell, as the most senior Cabinet minister, was appointed in Thompson's stead by the Governor General. Bowell thus became the second of just two Canadian prime ministers (after John Abbott) to hold that office while serving in the Senate rather than the House of Commons. Manitoba Schools Question As Prime Minister, Bowell faced the Manitoba Schools Question. In 1890, Manitoba had abolished public funding for denominational schools, both Catholic and Protestant, which many thought was contrary to the provisions made for denominational schools in the Manitoba Act of 1870. However, in a court challenge, the Judicial Committee of the Privy Council held that Manitoba's abolition of public funding for denominational schools was consistent with the Manitoba Act provision. In a second court case, the Judicial Committee held that the federal Parliament had the authority to enact remedial legislation to force Manitoba to re-establish the funding. Leadership crisis Bowell and his predecessors struggled to solve this problem, which divided the country and even Bowell's own Cabinet. He was further hampered in his handling of the issue by his own indecisiveness on it and by his inability, as a senator, to take part in debates in the House of Commons. Bowell backed legislation, already drafted, that would have forced Manitoba to restore its Catholic schools, but then postponed it due to opposition within his Cabinet. With the ordinary business of government at a standstill, several members of Cabinet decided that Bowell was incompetent to lead and so, to force him to step down, seven ministers resigned and then foiled the appointment of successors. Resigns as prime minister Though Bowell denounced the rebellious ministers as "a nest of traitors," he had to agree to resign. After ten days, following an intervention on Bowell's behalf by the Governor General, the government crisis was resolved and matters seemingly returned to normal when six of the ministers were reinstated, but leadership was then effectively held by Charles Tupper, who had joined Cabinet at the same time, filling the seventh place. Tupper, who had been Canadian High Commissioner to the United Kingdom, had been recalled by the plotters to replace Bowell. Bowell formally resigned in favour of Tupper at the end of the parliamentary session. Later life, and death Bowell stayed in the Senate, serving as his party's leader there until 1906, and afterward as a regular Senator until his death in 1917, having served continuously for more than 50 years as a federal parliamentarian. He died of pneumonia in Belleville, seventeen days short of his 94th birthday. He was buried in the Belleville cemetery. His funeral was attended by a full complement of the Orange Order, but not by any currently or formerly elected member of the government. Legacy Bowell was designated a National Historic Person in 1945, on the advice of the national Historic Sites and Monuments Board. The Post Office Department honored Bowell with a commemorative stamp in 1954, part of a series on prime ministers. In their 1998 study of the Canadian prime ministers up through Jean Chrétien, J. L. Granatstein and Norman Hillmer found that a survey of Canadian historians ranked Bowell #19 out of the 20 Prime Ministers up until then. Until 2017, Bowell remained the only Canadian prime minister without a full-length biography of his life and career. This shortfall was solved when the Belleville historian Betsy Dewar Boyce's book The Accidental Prime Minister was published by Bancroft, Ontario publisher Kirby Books. The book was published on the centennial of Bowell's death. Boyce had died in 2007, having unsuccessfully sought a publisher for her work for a decade. Supreme Court appointments The following jurist was appointed to the Supreme Court of Canada by the Governor General during Bowell's tenure: Désiré Girouard (September 28, 1895 – March 22, 1911) See also List of prime ministers of Canada Archives There is a Sir Mackenzie Bowell fonds at Library and Archives Canada. It includes 6.1 m of textual records. Further reading The Accidental Prime Minister, by Betsy Dewar Boyce, 2017, Kirby Publishing, Bancroft, Ontario, . Notes External links J. L. Granatstein and Norman Hillmer, Prime Ministers: Ranking Canada's Leaders, Toronto: HarperCollins Publishers Ltd., a Phyllis Bruce Book, 1999. pp. 42–44. . Photograph:Hon. Mackenzie Bowell, 1881 - McCord Museum 1823 births 1917 deaths Canadian Ministers of Finance Canadian Ministers of Railways and Canals 19th-century Canadian newspaper publishers (people) Canadian Presbyterians Canadian senators from Ontario Deaths from pneumonia in Ontario English emigrants to pre-Confederation Ontario Conservative Party of Canada (1867–1942) senators Canadian Knights Commander of the Order of St Michael and St George Leaders of the Conservative Party of Canada (1867–1942) Members of the Queen's Privy Council for Canada People from Mid Suffolk District Politicians from Belleville, Ontario Prime Ministers of Canada Persons of National Historic Significance (Canada) Immigrants to Upper Canada Canadian Freemasons The Hastings and Prince Edward Regiment officers The Hastings and Prince Edward Regiment

19603

https://en.wikipedia.org/wiki/Manhattan%20Project

Manhattan Project

The Manhattan Project was a research and development undertaking during World War II that produced the first nuclear weapons. It was led by the United States with the support of the United Kingdom and Canada. From 1942 to 1946, the project was under the direction of Major General Leslie Groves of the U.S. Army Corps of Engineers. Nuclear physicist Robert Oppenheimer was the director of the Los Alamos Laboratory that designed the actual bombs. The Army component of the project was designated the Manhattan District as its first headquarters were in Manhattan; the placename gradually superseded the official codename, Development of Substitute Materials, for the entire project. Along the way, the project absorbed its earlier British counterpart, Tube Alloys. The Manhattan Project began modestly in 1939, but grew to employ more than 130,000 people and cost nearly US$2 billion (equivalent to about $ billion in ). Over 90 percent of the cost was for building factories and to produce fissile material, with less than 10 percent for development and production of the weapons. Research and production took place at more than thirty sites across the United States, the United Kingdom, and Canada. Two types of atomic bombs were developed concurrently during the war: a relatively simple gun-type fission weapon and a more complex implosion-type nuclear weapon. The Thin Man gun-type design proved impractical to use with plutonium, and therefore a simpler gun-type called Little Boy was developed that used uranium-235, an isotope that makes up only 0.7 percent of natural uranium. Since it was chemically identical to the most common isotope, uranium-238, and had almost the same mass, separating the two proved difficult. Three methods were employed for uranium enrichment: electromagnetic, gaseous and thermal. Most of this work was performed at the Clinton Engineer Works at Oak Ridge, Tennessee. In parallel with the work on uranium was an effort to produce plutonium, which was discovered by researchers at the University of California, Berkeley, in 1940. After the feasibility of the world's first artificial nuclear reactor, the Chicago Pile-1, was demonstrated in 1942 at the Metallurgical Laboratory in the University of Chicago, the Project designed the X-10 Graphite Reactor at Oak Ridge and the production reactors at the Hanford Site in Washington state, in which uranium was irradiated and transmuted into plutonium. The plutonium was then chemically separated from the uranium, using the bismuth phosphate process. The Fat Man plutonium implosion-type weapon was developed in a concerted design and development effort by the Los Alamos Laboratory. The project was also charged with gathering intelligence on the German nuclear weapon project. Through Operation Alsos, Manhattan Project personnel served in Europe, sometimes behind enemy lines, where they gathered nuclear materials and documents, and rounded up German scientists. Despite the Manhattan Project's tight security, Soviet atomic spies successfully penetrated the program. The first nuclear device ever detonated was an implosion-type bomb at the Trinity test, conducted at New Mexico's Alamogordo Bombing and Gunnery Range on 16 July 1945. Little Boy and Fat Man bombs were used a month later in the atomic bombings of Hiroshima and Nagasaki, respectively, with Manhattan Project personnel serving as bomb assembly technicians, and as weaponeers on the attack aircraft. In the immediate postwar years, the Manhattan Project conducted weapons testing at Bikini Atoll as part of Operation Crossroads, developed new weapons, promoted the development of the network of national laboratories, supported medical research into radiology and laid the foundations for the nuclear navy. It maintained control over American atomic weapons research and production until the formation of the United States Atomic Energy Commission in January 1947. Origins The discovery of nuclear fission by German chemists Otto Hahn and Fritz Strassmann in 1938, and its theoretical explanation by Lise Meitner and Otto Frisch, made the development of an atomic bomb a theoretical possibility. There were fears that a German atomic bomb project would develop one first, especially among scientists who were refugees from Nazi Germany and other fascist countries. In August 1939, Hungarian-born physicists Leo Szilard and Eugene Wigner drafted the Einstein–Szilard letter, which warned of the potential development of "extremely powerful bombs of a new type". It urged the United States to take steps to acquire stockpiles of uranium ore and accelerate the research of Enrico Fermi and others into nuclear chain reactions. They had it signed by Albert Einstein and delivered to President Franklin D. Roosevelt. Roosevelt called on Lyman Briggs of the National Bureau of Standards to head the Advisory Committee on Uranium to investigate the issues raised by the letter. Briggs held a meeting on 21 October 1939, which was attended by Szilárd, Wigner and Edward Teller. The committee reported back to Roosevelt in November that uranium "would provide a possible source of bombs with a destructiveness vastly greater than anything now known." In February 1940, the U.S. Navy awarded Columbia University $6,000 in funding, most of which Enrico Fermi and Szilard spent on purchasing graphite. A team of Columbia professors including Fermi, Szilard, Eugene T. Booth and John Dunning created the first nuclear fission reaction in the Americas, verifying the work of Hahn and Strassmann. The same team subsequently built a series of prototype nuclear reactors (or "piles" as Fermi called them) in Pupin Hall at Columbia, but were not yet able to achieve a chain reaction. The Advisory Committee on Uranium became the National Defense Research Committee (NDRC) on Uranium when that organization was formed on 27 June 1940. Briggs proposed spending $167,000 on research into uranium, particularly the uranium-235 isotope, and plutonium, which was discovered in 1940 at the University of California. On 28 June 1941, Roosevelt signed Executive Order 8807, which created the Office of Scientific Research and Development (OSRD), with Vannevar Bush as its director. The office was empowered to engage in large engineering projects in addition to research. The NDRC Committee on Uranium became the S-1 Section of the OSRD; the word "uranium" was dropped for security reasons. In Britain, Frisch and Rudolf Peierls at the University of Birmingham had made a breakthrough investigating the critical mass of uranium-235 in June 1939. Their calculations indicated that it was within an order of magnitude of , which was small enough to be carried by a bomber of the day. Their March 1940 Frisch–Peierls memorandum initiated the British atomic bomb project and its MAUD Committee, which unanimously recommended pursuing the development of an atomic bomb. In July 1940, Britain had offered to give the United States access to its scientific research, and the Tizard Mission's John Cockcroft briefed American scientists on British developments. He discovered that the American project was smaller than the British, and not as far advanced. As part of the scientific exchange, the MAUD Committee's findings were conveyed to the United States. One of its members, the Australian physicist Mark Oliphant, flew to the United States in late August 1941 and discovered that data provided by the MAUD Committee had not reached key American physicists. Oliphant then set out to find out why the committee's findings were apparently being ignored. He met with the Uranium Committee and visited Berkeley, California, where he spoke persuasively to Ernest O. Lawrence. Lawrence was sufficiently impressed to commence his own research into uranium. He in turn spoke to James B. Conant, Arthur H. Compton and George B. Pegram. Oliphant's mission was therefore a success; key American physicists were now aware of the potential power of an atomic bomb. On 9 October 1941, President Roosevelt approved the atomic program after he convened a meeting with Vannevar Bush and Vice President Henry A. Wallace. To control the program, he created a Top Policy Group consisting of himself—although he never attended a meeting—Wallace, Bush, Conant, Secretary of War Henry L. Stimson, and the Chief of Staff of the Army, General George C. Marshall. Roosevelt chose the Army to run the project rather than the Navy, because the Army had more experience with management of large-scale construction projects. He also agreed to coordinate the effort with that of the British, and on 11 October he sent a message to Prime Minister Winston Churchill, suggesting that they correspond on atomic matters. Feasibility Proposals The S-1 Committee held its meeting on 18 December 1941 "pervaded by an atmosphere of enthusiasm and urgency" in the wake of the attack on Pearl Harbor and the subsequent United States declaration of war upon Japan and then on Germany. Work was proceeding on three different techniques for isotope separation to separate uranium-235 from the more abundant uranium-238. Lawrence and his team at the University of California investigated electromagnetic separation, while Eger Murphree and Jesse Wakefield Beams's team looked into gaseous diffusion at Columbia University, and Philip Abelson directed research into thermal diffusion at the Carnegie Institution of Washington and later the Naval Research Laboratory. Murphree was also the head of an unsuccessful separation project using gas centrifuges. Meanwhile, there were two lines of research into nuclear reactor technology, with Harold Urey continuing research into heavy water at Columbia, while Arthur Compton brought the scientists working under his supervision from Columbia, California and Princeton University to join his team at the University of Chicago, where he organized the Metallurgical Laboratory in early 1942 to study plutonium and reactors using graphite as a neutron moderator. Briggs, Compton, Lawrence, Murphree, and Urey met on 23 May 1942 to finalize the S-1 Committee recommendations, which called for all five technologies to be pursued. This was approved by Bush, Conant, and Brigadier General Wilhelm D. Styer, the chief of staff of Major General Brehon B. Somervell's Services of Supply, who had been designated the Army's representative on nuclear matters. Bush and Conant then took the recommendation to the Top Policy Group with a budget proposal for $54 million for construction by the United States Army Corps of Engineers, $31 million for research and development by OSRD and $5 million for contingencies in fiscal year 1943. The Top Policy Group in turn sent it on 17 June 1942 to the President, who approved it by writing "OK FDR" on the document. Bomb design concepts Compton asked theoretical physicist J. Robert Oppenheimer of the University of California to take over research into fast neutron calculations—the key to calculations of critical mass and weapon detonation—from Gregory Breit, who had quit on 18 May 1942 because of concerns over lax operational security. John H. Manley, a physicist at the Metallurgical Laboratory, was assigned to assist Oppenheimer by contacting and coordinating experimental physics groups scattered across the country. Oppenheimer and Robert Serber of the University of Illinois examined the problems of neutron diffusion—how neutrons moved in a nuclear chain reaction—and hydrodynamics—how the explosion produced by a chain reaction might behave. To review this work and the general theory of fission reactions, Oppenheimer and Fermi convened meetings at the University of Chicago in June and at the University of California in July 1942 with theoretical physicists Hans Bethe, John Van Vleck, Edward Teller, Emil Konopinski, Robert Serber, Stan Frankel, and Eldred C. (Carlyle) Nelson (1917-2008), the latter three former students of Oppenheimer, and experimental physicists Emilio Segrè, Felix Bloch, Franco Rasetti, John Henry Manley, and Edwin McMillan. They tentatively confirmed that a fission bomb was theoretically possible. There were still many unknown factors. The properties of pure uranium-235 were relatively unknown, as were those of plutonium, an element that had only been discovered in February 1941 by Glenn Seaborg and his team. The scientists at the (July 1942) Berkeley conference envisioned creating plutonium in nuclear reactors where uranium-238 atoms absorbed neutrons that had been emitted from fissioning uranium-235 atoms. At this point no reactor had been built, and only tiny quantities of plutonium were available from cyclotrons at institutions such as Washington University in St. Louis. Even by December 1943, only two milligrams had been produced. There were many ways of arranging the fissile material into a critical mass. The simplest was shooting a "cylindrical plug" into a sphere of "active material" with a "tamper"—dense material that would focus neutrons inward and keep the reacting mass together to increase its efficiency. They also explored designs involving spheroids, a primitive form of "implosion" suggested by Richard C. Tolman, and the possibility of autocatalytic methods, which would increase the efficiency of the bomb as it exploded. Considering the idea of the fission bomb theoretically settled—at least until more experimental data was available—the 1942 Berkeley conference then turned in a different direction. Edward Teller pushed for discussion of a more powerful bomb: the "super", now usually referred to as a "hydrogen bomb", which would use the explosive force of a detonating fission bomb to ignite a nuclear fusion reaction in deuterium and tritium. Teller proposed scheme after scheme, but Bethe refused each one. The fusion idea was put aside to concentrate on producing fission bombs. Teller also raised the speculative possibility that an atomic bomb might "ignite" the atmosphere because of a hypothetical fusion reaction of nitrogen nuclei. Bethe calculated that it could not happen, and a report co-authored by Teller showed that "no self-propagating chain of nuclear reactions is likely to be started." In Serber's account, Oppenheimer mentioned the possibility of this scenario to Arthur Compton, who "didn't have enough sense to shut up about it. It somehow got into a document that went to Washington" and was "never laid to rest". Organization Manhattan District The Chief of Engineers, Major General Eugene Reybold, selected Colonel James C. Marshall to head the Army's part of the project in June 1942. Marshall created a liaison office in Washington, D.C., but established his temporary headquarters on the 18th floor of 270 Broadway in New York, where he could draw on administrative support from the Corps of Engineers' North Atlantic Division. It was close to the Manhattan office of Stone & Webster, the principal project contractor, and to Columbia University. He had permission to draw on his former command, the Syracuse District, for staff, and he started with Lieutenant Colonel Kenneth Nichols, who became his deputy. Because most of his task involved construction, Marshall worked in cooperation with the head of the Corps of Engineers Construction Division, Major General Thomas M. Robbins, and his deputy, Colonel Leslie Groves. Reybold, Somervell, and Styer decided to call the project "Development of Substitute Materials", but Groves felt that this would draw attention. Since engineer districts normally carried the name of the city where they were located, Marshall and Groves agreed to name the Army's component of the project the Manhattan District. This became official on 13 August, when Reybold issued the order creating the new district. Informally, it was known as the Manhattan Engineer District, or MED. Unlike other districts, it had no geographic boundaries, and Marshall had the authority of a division engineer. Development of Substitute Materials remained as the official codename of the project as a whole, but was supplanted over time by "Manhattan". Marshall later conceded that, "I had never heard of atomic fission but I did know that you could not build much of a plant, much less four of them for $90 million." A single TNT plant that Nichols had recently built in Pennsylvania had cost $128 million. Nor were they impressed with estimates to the nearest order of magnitude, which Groves compared with telling a caterer to prepare for between ten and a thousand guests. A survey team from Stone & Webster had already scouted a site for the production plants. The War Production Board recommended sites around Knoxville, Tennessee, an isolated area where the Tennessee Valley Authority could supply ample electric power and the rivers could provide cooling water for the reactors. After examining several sites, the survey team selected one near Elza, Tennessee. Conant advised that it be acquired at once and Styer agreed but Marshall temporized, awaiting the results of Conant's reactor experiments before taking action. Of the prospective processes, only Lawrence's electromagnetic separation appeared sufficiently advanced for construction to commence. Marshall and Nichols began assembling the resources they would need. The first step was to obtain a high priority rating for the project. The top ratings were AA-1 through AA-4 in descending order, although there was also a special AAA rating reserved for emergencies. Ratings AA-1 and AA-2 were for essential weapons and equipment, so Colonel Lucius D. Clay, the deputy chief of staff at Services and Supply for requirements and resources, felt that the highest rating he could assign was AA-3, although he was willing to provide a AAA rating on request for critical materials if the need arose. Nichols and Marshall were disappointed; AA-3 was the same priority as Nichols' TNT plant in Pennsylvania. Military Policy Committee Vannevar Bush became dissatisfied with Colonel Marshall's failure to get the project moving forward expeditiously, specifically the failure to acquire the Tennessee site, the low priority allocated to the project by the Army and the location of his headquarters in New York City. Bush felt that more aggressive leadership was required, and spoke to Harvey Bundy and Generals Marshall, Somervell, and Styer about his concerns. He wanted the project placed under a senior policy committee, with a prestigious officer, preferably Styer, as overall director. Somervell and Styer selected Groves for the post, informing him on 17 September of this decision, and that General Marshall ordered that he be promoted to brigadier general, as it was felt that the title "general" would hold more sway with the academic scientists working on the Manhattan Project. Groves' orders placed him directly under Somervell rather than Reybold, with Colonel Marshall now answerable to Groves. Groves established his headquarters in Washington, D.C., on the fifth floor of the New War Department Building, where Colonel Marshall had his liaison office. He assumed command of the Manhattan Project on 23 September 1942. Later that day, he attended a meeting called by Stimson, which established a Military Policy Committee, responsible to the Top Policy Group, consisting of Bush (with Conant as an alternate), Styer and Rear Admiral William R. Purnell. Tolman and Conant were later appointed as Groves' scientific advisers. On 19 September, Groves went to Donald Nelson, the chairman of the War Production Board, and asked for broad authority to issue a AAA rating whenever it was required. Nelson initially balked but quickly caved in when Groves threatened to go to the President. Groves promised not to use the AAA rating unless it was necessary. It soon transpired that for the routine requirements of the project the AAA rating was too high but the AA-3 rating was too low. After a long campaign, Groves finally received AA-1 authority on 1 July 1944. According to Groves, "In Washington you became aware of the importance of top priority. Most everything proposed in the Roosevelt administration would have top priority. That would last for about a week or two and then something else would get top priority". One of Groves' early problems was to find a director for Project Y, the group that would design and build the bomb. The obvious choice was one of the three laboratory heads, Urey, Lawrence, or Compton, but they could not be spared. Compton recommended Oppenheimer, who was already intimately familiar with the bomb design concepts. However, Oppenheimer had little administrative experience, and, unlike Urey, Lawrence, and Compton, had not won a Nobel Prize, which many scientists felt that the head of such an important laboratory should have. There were also concerns about Oppenheimer's security status, as many of his associates were communists, including his wife, Kitty (Katherine Oppenheimer); his girlfriend, Jean Tatlock; and his brother, Frank Oppenheimer. A long conversation on a train in October 1942 convinced Groves and Nichols that Oppenheimer thoroughly understood the issues involved in setting up a laboratory in a remote area and should be appointed as its director. Groves personally waived the security requirements and issued Oppenheimer a clearance on 20 July 1943. Collaboration with the United Kingdom The British and Americans exchanged nuclear information but did not initially combine their efforts. Britain rebuffed attempts by Bush and Conant in 1941 to strengthen cooperation with its own project, codenamed Tube Alloys, because it was reluctant to share its technological lead and help the United States develop its own atomic bomb. An American scientist who brought a personal letter from Roosevelt to Churchill offering to pay for all research and development in an Anglo-American project was poorly treated, and Churchill did not reply to the letter. The United States as a result decided as early as April 1942 that if its offer was rejected, they should proceed alone. The British, who had made significant contributions early in the war, did not have the resources to carry through such a research program while fighting for their survival. As a result, Tube Alloys soon fell behind its American counterpart. and on 30 July 1942, Sir John Anderson, the minister responsible for Tube Alloys, advised Churchill that: "We must face the fact that ... [our] pioneering work ... is a dwindling asset and that, unless we capitalise it quickly, we shall be outstripped. We now have a real contribution to make to a 'merger.' Soon we shall have little or none." That month Churchill and Roosevelt made an informal, unwritten agreement for atomic collaboration. The opportunity for an equal partnership no longer existed, however, as shown in August 1942 when the British unsuccessfully demanded substantial control over the project while paying none of the costs. By 1943 the roles of the two countries had reversed from late 1941; in January Conant notified the British that they would no longer receive atomic information except in certain areas. While the British were shocked by the abrogation of the Churchill-Roosevelt agreement, head of the Canadian National Research Council C. J. Mackenzie was less surprised, writing "I can't help feeling that the United Kingdom group [over] emphasizes the importance of their contribution as compared with the Americans." As Conant and Bush told the British, the order came "from the top". The British bargaining position had worsened; the American scientists had decided that the United States no longer needed outside help, and they wanted to prevent Britain exploiting post-war commercial applications of atomic energy. The committee supported, and Roosevelt agreed to, restricting the flow of information to what Britain could use during the war—especially not bomb design—even if doing so slowed down the American project. By early 1943 the British stopped sending research and scientists to America, and as a result the Americans stopped all information sharing. The British considered ending the supply of Canadian uranium and heavy water to force the Americans to again share, but Canada needed American supplies to produce them. They investigated the possibility of an independent nuclear program, but determined that it could not be ready in time to affect the outcome of the war in Europe. By March 1943 Conant decided that British help would benefit some areas of the project. James Chadwick and one or two other British scientists were important enough that the bomb design team at Los Alamos needed them, despite the risk of revealing weapon design secrets. In August 1943 Churchill and Roosevelt negotiated the Quebec Agreement, which resulted in a resumption of cooperation between scientists working on the same problem. Britain, however, agreed to restrictions on data on the building of large-scale production plants necessary for the bomb. The subsequent Hyde Park Agreement in September 1944 extended this cooperation to the postwar period. The Quebec Agreement established the Combined Policy Committee to coordinate the efforts of the United States, United Kingdom and Canada. Stimson, Bush and Conant served as the American members of the Combined Policy Committee, Field Marshal Sir John Dill and Colonel J. J. Llewellin were the British members, and C. D. Howe was the Canadian member. Llewellin returned to the United Kingdom at the end of 1943 and was replaced on the committee by Sir Ronald Ian Campbell, who in turn was replaced by the British Ambassador to the United States, Lord Halifax, in early 1945. Sir John Dill died in Washington, D.C., in November 1944 and was replaced both as Chief of the British Joint Staff Mission and as a member of the Combined Policy Committee by Field Marshal Sir Henry Maitland Wilson. When cooperation resumed after the Quebec agreement, the Americans' progress and expenditures amazed the British. The United States had already spent more than $1 billion ($ billion today), while in 1943, the United Kingdom had spent about £0.5 million. Chadwick thus pressed for British involvement in the Manhattan Project to the fullest extent and abandoned any hopes of an independent British project during the war. With Churchill's backing, he attempted to ensure that every request from Groves for assistance was honored. The British Mission that arrived in the United States in December 1943 included Niels Bohr, Otto Frisch, Klaus Fuchs, Rudolf Peierls, and Ernest Titterton. More scientists arrived in early 1944. While those assigned to gaseous diffusion left by the fall of 1944, the 35 working under Oliphant with Lawrence at Berkeley were assigned to existing laboratory groups and most stayed until the end of the war. The 19 sent to Los Alamos also joined existing groups, primarily related to implosion and bomb assembly, but not the plutonium-related ones. Part of the Quebec Agreement specified that nuclear weapons would not be used against another country without the mutual consent of the US and UK. In June 1945, Wilson agreed that the use of nuclear weapons against Japan would be recorded as a decision of the Combined Policy Committee. The Combined Policy Committee created the Combined Development Trust in June 1944, with Groves as its chairman, to procure uranium and thorium ores on international markets. The Belgian Congo and Canada held much of the world's uranium outside Eastern Europe, and the Belgian government in exile was in London. Britain agreed to give the United States most of the Belgian ore, as it could not use most of the supply without restricted American research. In 1944, the Trust purchased of uranium oxide ore from companies operating mines in the Belgian Congo. In order to avoid briefing US Secretary of the Treasury Henry Morgenthau Jr. on the project, a special account not subject to the usual auditing and controls was used to hold Trust monies. Between 1944 and the time he resigned from the Trust in 1947, Groves deposited a total of $37.5 million into the Trust's account. Groves appreciated the early British atomic research and the British scientists' contributions to the Manhattan Project, but stated that the United States would have succeeded without them. He also said that Churchill was "the best friend the atomic bomb project had [as] he kept Roosevelt's interest up ... He just stirred him up all the time by telling him how important he thought the project was." The British wartime participation was crucial to the success of the United Kingdom's independent nuclear weapons program after the war when the McMahon Act of 1946 temporarily ended American nuclear cooperation. Project sites Oak Ridge The day after he took over the project, Groves took a train to Tennessee with Colonel Marshall to inspect the proposed site there, and Groves was impressed. On 29 September 1942, United States Under Secretary of War Robert P. Patterson authorized the Corps of Engineers to acquire of land by eminent domain at a cost of $3.5 million. An additional was subsequently acquired. About 1,000 families were affected by the condemnation order, which came into effect on 7 October. Protests, legal appeals, and a 1943 Congressional inquiry were to no avail. By mid-November U.S. Marshals were tacking notices to vacate on farmhouse doors, and construction contractors were moving in. Some families were given two weeks' notice to vacate farms that had been their homes for generations; others had settled there after being evicted to make way for the Great Smoky Mountains National Park in the 1920s or the Norris Dam in the 1930s. The ultimate cost of land acquisition in the area, which was not completed until March 1945, was only about $2.6 million, which worked out to around $47 an acre. When presented with Public Proclamation Number Two, which declared Oak Ridge a total exclusion area that no one could enter without military permission, the Governor of Tennessee, Prentice Cooper, angrily tore it up. Initially known as the Kingston Demolition Range, the site was officially renamed the Clinton Engineer Works (CEW) in early 1943. While Stone & Webster concentrated on the production facilities, the architectural and engineering firm Skidmore, Owings & Merrill designed and built a residential community for 13,000. The community was located on the slopes of Black Oak Ridge, from which the new town of Oak Ridge got its name. The Army presence at Oak Ridge increased in August 1943 when Nichols replaced Marshall as head of the Manhattan Engineer District. One of his first tasks was to move the district headquarters to Oak Ridge although the name of the district did not change. In September 1943 the administration of community facilities was outsourced to Turner Construction Company through a subsidiary, the Roane-Anderson Company (for Roane and Anderson Counties, in which Oak Ridge was located). Chemical engineers, including William J. (Jenkins) Wilcox Jr. (1923–2013) and Warren Fuchs, were part of "frantic efforts" to make 10% to 12% enriched uranium 235, known as the code name "tuballoy tetroxide", with tight security and fast approvals for supplies and materials. The population of Oak Ridge soon expanded well beyond the initial plans, and peaked at 75,000 in May 1945, by which time 82,000 people were employed at the Clinton Engineer Works, and 10,000 by Roane-Anderson. Fine-arts photographer, Josephine Herrick, and her colleague, Mary Steers, helped document the work at Oak Ridge. Los Alamos The idea of locating Project Y at Oak Ridge was considered, but in the end it was decided that it should be in a remote location. On Oppenheimer's recommendation, the search for a suitable site was narrowed to the vicinity of Albuquerque, New Mexico, where Oppenheimer owned a ranch. In October 1942, Major John H. Dudley of the Manhattan District was sent to survey the area. He recommended a site near Jemez Springs, New Mexico. On 16 November, Oppenheimer, Groves, Dudley and others toured the site. Oppenheimer feared that the high cliffs surrounding the site would make his people feel claustrophobic, while the engineers were concerned with the possibility of flooding. The party then moved on to the vicinity of the Los Alamos Ranch School. Oppenheimer was impressed and expressed a strong preference for the site, citing its natural beauty and views of the Sangre de Cristo Mountains, which, it was hoped, would inspire those who would work on the project. The engineers were concerned about the poor access road, and whether the water supply would be adequate, but otherwise felt that it was ideal. Patterson approved the acquisition of the site on 25 November 1942, authorizing $440,000 for the purchase of the site of , all but of which were already owned by the Federal Government. Secretary of Agriculture Claude R. Wickard granted use of some of United States Forest Service land to the War Department "for so long as the military necessity continues". The need for land, for a new road, and later for a right of way for a power line, eventually brought wartime land purchases to , but only $414,971 was spent. Construction was contracted to the M. M. Sundt Company of Tucson, Arizona, with Willard C. Kruger and Associates of Santa Fe, New Mexico, as architect and engineer. Work commenced in December 1942. Groves initially allocated $300,000 for construction, three times Oppenheimer's estimate, with a planned completion date of 15 March 1943. It soon became clear that the scope of Project Y was greater than expected, and by the time Sundt finished on 30 November 1943, over $7 million had been spent. Because it was secret, Los Alamos was referred to as "Site Y" or "the Hill". Birth certificates of babies born in Los Alamos during the war listed their place of birth as PO Box 1663 in Santa Fe. Initially Los Alamos was to have been a military laboratory with Oppenheimer and other researchers commissioned into the Army. Oppenheimer went so far as to order himself a lieutenant colonel's uniform, but two key physicists, Robert Bacher and Isidor Rabi, balked at the idea. Conant, Groves and Oppenheimer then devised a compromise whereby the laboratory was operated by the University of California under contract to the War Department. Chicago An Army-OSRD council on 25 June 1942 decided to build a pilot plant for plutonium production in Red Gate Woods southwest of Chicago. In July, Nichols arranged for a lease of from the Cook County Forest Preserve District, and Captain James F. Grafton (1908-1969) was appointed Chicago area engineer. It soon became apparent that the scale of operations was too great for the area, and it was decided to build the plant at Oak Ridge, and keep a research and testing facility in Chicago. Delays in establishing the plant in Red Gate Woods led Compton to authorize the Metallurgical Laboratory to construct the first nuclear reactor beneath the bleachers of Stagg Field at the University of Chicago. The reactor required an enormous amount of graphite blocks and uranium pellets. At the time, there was a limited source of pure uranium. Frank Spedding of Iowa State University was able to produce only two short tons of pure uranium. Additional three short tons of uranium metal was supplied by Westinghouse Lamp Plant which was produced in a rush with makeshift process. A large square balloon was constructed by Goodyear Tire to encase the reactor. On 2 December 1942, a team led by Enrico Fermi initiated the first artificial self-sustaining nuclear chain reaction in an experimental reactor known as Chicago Pile-1. The point at which a reaction becomes self-sustaining became known as "going critical". Compton reported the success to Conant in Washington, D.C., by a coded phone call, saying, "The Italian navigator [Fermi] has just landed in the new world." In January 1943, Grafton's successor, Major Arthur V. Peterson, ordered Chicago Pile-1 dismantled and reassembled at Red Gate Woods, as he regarded the operation of a reactor as too hazardous for a densely populated area. At the Argonne site, Chicago Pile-3, the first heavy water reactor, went critical on 15 May 1944. After the war, the operations that remained at Red Gate moved to the new site of the Argonne National Laboratory about away. Hanford By December 1942 there were concerns that even Oak Ridge was too close to a major population center (Knoxville) in the unlikely event of a major nuclear accident. Groves recruited DuPont in November 1942 to be the prime contractor for the construction of the plutonium production complex. DuPont was offered a standard cost plus fixed-fee contract, but the President of the company, Walter S. Carpenter, Jr., wanted no profit of any kind, and asked for the proposed contract to be amended to explicitly exclude the company from acquiring any patent rights. This was accepted, but for legal reasons a nominal fee of one dollar was agreed upon. After the war, DuPont asked to be released from the contract early, and had to return 33 cents. DuPont recommended that the site be located far from the existing uranium production facility at Oak Ridge. In December 1942, Groves dispatched Colonel Franklin Matthias and DuPont engineers to scout potential sites. Matthias reported that Hanford Site near Richland, Washington, was "ideal in virtually all respects". It was isolated and near the Columbia River, which could supply sufficient water to cool the reactors that would produce the plutonium. Groves visited the site in January and established the Hanford Engineer Works (HEW), codenamed "Site W". Under Secretary Patterson gave his approval on 9 February, allocating $5 million for the acquisition of of land in the area. The federal government relocated some 1,500 residents of White Bluffs and Hanford, and nearby settlements, as well as the Wanapum and other tribes using the area. A dispute arose with farmers over compensation for crops, which had already been planted before the land was acquired. Where schedules allowed, the Army allowed the crops to be harvested, but this was not always possible. The land acquisition process dragged on and was not completed before the end of the Manhattan Project in December 1946. The dispute did not delay work. Although progress on the reactor design at Metallurgical Laboratory and DuPont was not sufficiently advanced to accurately predict the scope of the project, a start was made in April 1943 on facilities for an estimated 25,000 workers, half of whom were expected to live on-site. By July 1944, some 1,200 buildings had been erected and nearly 51,000 people were living in the construction camp. As area engineer, Matthias exercised overall control of the site. At its peak, the construction camp was the third most populous town in Washington state. Hanford operated a fleet of over 900 buses, more than the city of Chicago. Like Los Alamos and Oak Ridge, Richland was a gated community with restricted access, but it looked more like a typical wartime American boomtown: the military profile was lower, and physical security elements like high fences, towers, and guard dogs were less evident. Canadian sites British Columbia Cominco had produced electrolytic hydrogen at Trail, British Columbia, since 1930. Urey suggested in 1941 that it could produce heavy water. To the existing $10 million plant consisting of 3,215 cells consuming 75 MW of hydroelectric power, secondary electrolysis cells were added to increase the deuterium concentration in the water from 2.3% to 99.8%. For this process, Hugh Taylor of Princeton developed a platinum-on-carbon catalyst for the first three stages while Urey developed a nickel-chromia one for the fourth stage tower. The final cost was $2.8 million. The Canadian Government did not officially learn of the project until August 1942. Trail's heavy water production started in January 1944 and continued until 1956. Heavy water from Trail was used for Chicago Pile 3, the first reactor using heavy water and natural uranium, which went critical on 15 May 1944. Ontario The Chalk River, Ontario, site was established to rehouse the Allied effort at the Montreal Laboratory away from an urban area. A new community was built at Deep River, Ontario, to provide residences and facilities for the team members. The site was chosen for its proximity to the industrial manufacturing area of Ontario and Quebec, and proximity to a rail head adjacent to a large military base, Camp Petawawa. Located on the Ottawa River, it had access to abundant water. The first director of the new laboratory was Hans von Halban. He was replaced by John Cockcroft in May 1944, who in turn was succeeded by Bennett Lewis in September 1946. A pilot reactor known as ZEEP (zero-energy experimental pile) became the first Canadian reactor, and the first to be completed outside the United States, when it went critical in September 1945, ZEEP remained in use by researchers until 1970. A larger 10 MW NRX reactor, which was designed during the war, was completed and went critical in July 1947. Northwest Territories The Eldorado Mine at Port Radium was a source of uranium ore. Heavy water sites Although DuPont's preferred designs for the nuclear reactors were helium cooled and used graphite as a moderator, DuPont still expressed an interest in using heavy water as a backup, in case the graphite reactor design proved infeasible for some reason. For this purpose, it was estimated that of heavy water would be required per month. The P-9 Project was the government's code name for the heavy water production program. As the plant at Trail, which was then under construction, could produce per month, additional capacity was required. Groves therefore authorized DuPont to establish heavy water facilities at the Morgantown Ordnance Works, near Morgantown, West Virginia; at the Wabash River Ordnance Works, near Dana and Newport, Indiana; and at the Alabama Ordnance Works, near Childersburg and Sylacauga, Alabama. Although known as Ordnance Works and paid for under Ordnance Department contracts, they were built and operated by the Army Corps of Engineers. The American plants used a process different from Trail's; heavy water was extracted by distillation, taking advantage of the slightly higher boiling point of heavy water. Uranium Ore The key raw material for the project was uranium, which was used as fuel for the reactors, as feed that was transformed into plutonium, and, in its enriched form, in the atomic bomb itself. There were four known major deposits of uranium in 1940: in Colorado, in northern Canada, in Joachimsthal in Czechoslovakia, and in the Belgian Congo. All but Joachimstal were in allied hands. A November 1942 survey determined that sufficient quantities of uranium were available to satisfy the project's requirements. Nichols arranged with the State Department for export controls to be placed on uranium oxide and negotiated for the purchase of of uranium ore from the Belgian Congo that was being stored in a warehouse on Staten Island and the remaining stocks of mined ore stored in the Congo. He negotiated with Eldorado Gold Mines for the purchase of ore from its refinery in Port Hope, Ontario, and its shipment in 100-ton lots. The Canadian government subsequently bought up the company's stock until it acquired a controlling interest. While these purchases assured a sufficient supply to meet wartime needs, the American and British leaders concluded that it was in their countries' interest to gain control of as much of the world's uranium deposits as possible. The richest source of ore was the Shinkolobwe mine in the Belgian Congo, but it was flooded and closed. Nichols unsuccessfully attempted to negotiate its reopening and the sale of the entire future output to the United States with Edgar Sengier, the director of the company that owned the mine, the Union Minière du Haut-Katanga. The matter was then taken up by the Combined Policy Committee. As 30 percent of Union Minière's stock was controlled by British interests, the British took the lead in negotiations. Sir John Anderson and Ambassador John Winant hammered out a deal with Sengier and the Belgian government in May 1944 for the mine to be reopened and of ore to be purchased at $1.45 a pound. To avoid dependence on the British and Canadians for ore, Groves also arranged for the purchase of US Vanadium Corporation's stockpile in Uravan, Colorado. Uranium mining in Colorado yielded about of ore. Mallinckrodt Incorporated in St. Louis, Missouri, took the raw ore and dissolved it in nitric acid to produce uranyl nitrate. Ether was then added in a liquid–liquid extraction process to separate the impurities from the uranyl nitrate. This was then heated to form uranium trioxide, which was reduced to highly pure uranium dioxide. By July 1942, Mallinckrodt was producing a ton of highly pure oxide a day, but turning this into uranium metal initially proved more difficult for contractors Westinghouse and Metal Hydrides. Production was too slow and quality was unacceptably low. A special branch of the Metallurgical Laboratory was established at Iowa State College in Ames, Iowa, under Frank Spedding to investigate alternatives. This became known as the Ames Project, and its Ames process became available in 1943. Isotope separation Natural uranium consists of 99.3% uranium-238 and 0.7% uranium-235, but only the latter is fissile. The chemically identical uranium-235 has to be physically separated from the more plentiful isotope. Various methods were considered for uranium enrichment, most of which was carried out at Oak Ridge. The most obvious technology, the centrifuge, failed, but electromagnetic separation, gaseous diffusion, and thermal diffusion technologies were all successful and contributed to the project. In February 1943, Groves came up with the idea of using the output of some plants as the input for others. Centrifuges The centrifuge process was regarded as the only promising separation method in April 1942. Jesse Beams had developed such a process at the University of Virginia during the 1930s, but had encountered technical difficulties. The process required high rotational speeds, but at certain speeds harmonic vibrations developed that threatened to tear the machinery apart. It was therefore necessary to accelerate quickly through these speeds. In 1941 he began working with uranium hexafluoride, the only known gaseous compound of uranium, and was able to separate uranium-235. At Columbia, Urey had Karl Cohen investigate the process, and he produced a body of mathematical theory making it possible to design a centrifugal separation unit, which Westinghouse undertook to construct. Scaling this up to a production plant presented a formidable technical challenge. Urey and Cohen estimated that producing a kilogram (2.2 lb) of uranium-235 per day would require up to 50,000 centrifuges with rotors, or 10,000 centrifuges with rotors, assuming that 4-meter rotors could be built. The prospect of keeping so many rotors operating continuously at high speed appeared daunting, and when Beams ran his experimental apparatus, he obtained only 60% of the predicted yield, indicating that more centrifuges would be required. Beams, Urey and Cohen then began work on a series of improvements which promised to increase the efficiency of the process. However, frequent failures of motors, shafts and bearings at high speeds delayed work on the pilot plant. In November 1942 the centrifuge process was abandoned by the Military Policy Committee following a recommendation by Conant, Nichols and August C. Klein of Stone & Webster. Although the centrifuge method was abandoned by the Manhattan Project, research into it advanced significantly after the war with the introduction of the Zippe-type centrifuge, which was developed in the Soviet Union by Soviet and captured German engineers. It eventually became the preferred method of Uranium isotope separation, being far more economical than the other separation methods used during WWII. Electromagnetic separation Electromagnetic isotope separation was developed by Lawrence at the University of California Radiation Laboratory. This method employed devices known as calutrons, a hybrid of the standard laboratory mass spectrometer and the cyclotron magnet. The name was derived from the words California, university and cyclotron. In the electromagnetic process, a magnetic field deflected charged particles according to mass. The process was neither scientifically elegant nor industrially efficient. Compared with a gaseous diffusion plant or a nuclear reactor, an electromagnetic separation plant would consume more scarce materials, require more manpower to operate, and cost more to build. Nonetheless, the process was approved because it was based on proven technology and therefore represented less risk. Moreover, it could be built in stages, and rapidly reach industrial capacity. Marshall and Nichols discovered that the electromagnetic isotope separation process would require of copper, which was in desperately short supply. However, silver could be substituted, in an 11:10 ratio. On 3 August 1942, Nichols met with Under Secretary of the Treasury Daniel W. Bell and asked for the transfer of 6,000 tons of silver bullion from the West Point Bullion Depository. "Young man," Bell told him, "you may think of silver in tons but the Treasury will always think of silver in troy ounces!" Ultimately were used. The silver bars were cast into cylindrical billets and taken to Phelps Dodge in Bayway, New Jersey, where they were extruded into strips thick, wide and long. These were wound onto magnetic coils by Allis-Chalmers in Milwaukee, Wisconsin. After the war, all the machinery was dismantled and cleaned and the floorboards beneath the machinery were ripped up and burned to recover minute amounts of silver. In the end, only 1/3,600,000th was lost. The last silver was returned in May 1970. Responsibility for the design and construction of the electromagnetic separation plant, which came to be called Y-12, was assigned to Stone & Webster by the S-1 Committee in June 1942. The design called for five first-stage processing units, known as Alpha racetracks, and two units for final processing, known as Beta racetracks. In September 1943 Groves authorized construction of four more racetracks, known as Alpha II. Construction began in February 1943. When the plant was started up for testing on schedule in October, the 14-ton vacuum tanks crept out of alignment because of the power of the magnets, and had to be fastened more securely. A more serious problem arose when the magnetic coils started shorting out. In December Groves ordered a magnet to be broken open, and handfuls of rust were found inside. Groves then ordered the racetracks to be torn down and the magnets sent back to the factory to be cleaned. A pickling plant was established on-site to clean the pipes and fittings. The second Alpha I was not operational until the end of January 1944, the first Beta and first and third Alpha I's came online in March, and the fourth Alpha I was operational in April. The four Alpha II racetracks were completed between July and October 1944. Tennessee Eastman was contracted to manage Y-12 on the usual cost plus fixed-fee basis, with a fee of $22,500 per month plus $7,500 per racetrack for the first seven racetracks and $4,000 per additional racetrack. The calutrons were initially operated by scientists from Berkeley to remove bugs and achieve a reasonable operating rate. They were then turned over to trained Tennessee Eastman operators who had only a high school education. Nichols compared unit production data, and pointed out to Lawrence that the young "hillbilly" girl operators, known as Calutron Girls, were outperforming his PhDs. They agreed to a production race and Lawrence lost, a morale boost for the Tennessee Eastman workers and supervisors. The girls were "trained like soldiers not to reason why", while "the scientists could not refrain from time-consuming investigation of the cause of even minor fluctuations of the dials." Y-12 initially enriched the uranium-235 content to between 13% and 15%, and shipped the first few hundred grams of this to Los Alamos in March 1944. Only 1 part in 5,825 of the uranium feed emerged as final product. Much of the rest was splattered over equipment in the process. Strenuous recovery efforts helped raise production to 10% of the uranium-235 feed by January 1945. In February the Alpha racetracks began receiving slightly enriched (1.4%) feed from the new S-50 thermal diffusion plant. The next month it received enhanced (5%) feed from the K-25 gaseous diffusion plant. By August K-25 was producing uranium sufficiently enriched to feed directly into the Beta tracks. Gaseous diffusion The most promising but also the most challenging method of isotope separation was gaseous diffusion. Graham's law states that the rate of effusion of a gas is inversely proportional to the square root of its molecular mass, so in a box containing a semi-permeable membrane and a mixture of two gases, the lighter molecules will pass out of the container more rapidly than the heavier molecules. The gas leaving the container is somewhat enriched in the lighter molecules, while the residual gas is somewhat depleted. The idea was that such boxes could be formed into a cascade of pumps and membranes, with each successive stage containing a slightly more enriched mixture. Research into the process was carried out at Columbia University by a group that included Harold Urey, Karl P. Cohen, and John R. Dunning. In November 1942 the Military Policy Committee approved the construction of a 600-stage gaseous diffusion plant. On 14 December, M. W. Kellogg accepted an offer to construct the plant, which was codenamed K-25. A cost plus fixed-fee contract was negotiated, eventually totaling $2.5 million. A separate corporate entity called Kellex was created for the project, headed by Percival C. Keith, one of Kellogg's vice presidents. The process faced formidable technical difficulties. The highly corrosive gas uranium hexafluoride would have to be used, as no substitute could be found, and the motors and pumps would have to be vacuum tight and enclosed in inert gas. The biggest problem was the design of the barrier, which would have to be strong, porous and resistant to corrosion by uranium hexafluoride. The best choice for this seemed to be nickel. Edward Adler and Edward Norris created a mesh barrier from electroplated nickel. A six-stage pilot plant was built at Columbia to test the process, but the Norris-Adler prototype proved to be too brittle. A rival barrier was developed from powdered nickel by Kellex, the Bell Telephone Laboratories and the Bakelite Corporation. In January 1944, Groves ordered the Kellex barrier into production. Kellex's design for K-25 called for a four-story long U-shaped structure containing 54 contiguous buildings. These were divided into nine sections. Within these were cells of six stages. The cells could be operated independently, or consecutively within a section. Similarly, the sections could be operated separately or as part of a single cascade. A survey party began construction by marking out the site in May 1943. Work on the main building began in October 1943, and the six-stage pilot plant was ready for operation on 17 April 1944. In 1945 Groves canceled the upper stages of the plant, directing Kellex to instead design and build a 540-stage side feed unit, which became known as K-27. Kellex transferred the last unit to the operating contractor, Union Carbide and Carbon, on 11 September 1945. The total cost, including the K-27 plant completed after the war, came to $480 million. The production plant commenced operation in February 1945, and as cascade after cascade came online, the quality of the product increased. By April 1945, K-25 had attained a 1.1% enrichment and the output of the S-50 thermal diffusion plant began being used as feed. Some product produced the next month reached nearly 7% enrichment. In August, the last of the 2,892 stages commenced operation. K-25 and K-27 achieved their full potential in the early postwar period, when they eclipsed the other production plants and became the prototypes for a new generation of plants. Thermal diffusion The thermal diffusion process was based on Sydney Chapman and David Enskog's theory, which explained that when a mixed gas passes through a temperature gradient, the heavier one tends to concentrate at the cold end and the lighter one at the warm end. Since hot gases tend to rise and cool ones tend to fall, this can be used as a means of isotope separation. This process was first demonstrated by Klaus Clusius and Gerhard Dickel in Germany in 1938. It was developed by US Navy scientists, but was not one of the enrichment technologies initially selected for use in the Manhattan Project. This was primarily due to doubts about its technical feasibility, but the inter-service rivalry between the Army and Navy also played a part. The Naval Research Laboratory continued the research under Philip Abelson's direction, but there was little contact with the Manhattan Project until April 1944, when Captain William S. Parsons, the naval officer in charge of ordnance development at Los Alamos, brought Oppenheimer news of encouraging progress in the Navy's experiments on thermal diffusion. Oppenheimer wrote to Groves suggesting that the output of a thermal diffusion plant could be fed into Y-12. Groves set up a committee consisting of Warren K. Lewis, Eger Murphree and Richard Tolman to investigate the idea, and they estimated that a thermal diffusion plant costing $3.5 million could enrich of uranium per week to nearly 0.9% uranium-235. Groves approved its construction on 24 June 1944. Groves contracted with the H. K. Ferguson Company of Cleveland, Ohio, to build the thermal diffusion plant, which was designated S-50. Groves's advisers, Karl Cohen and W. I. Thompson from Standard Oil, estimated that it would take six months to build. Groves gave Ferguson just four. Plans called for the installation of 2,142 diffusion columns arranged in 21 racks. Inside each column were three concentric tubes. Steam, obtained from the nearby K-25 powerhouse at a pressure of and temperature of , flowed downward through the innermost nickel pipe, while water at flowed upward through the outermost iron pipe. The uranium hexafluoride flowed in the middle copper pipe, and isotope separation of the uranium occurred between the nickel and copper pipes. Work commenced on 9 July 1944, and S-50 began partial operation in September. Ferguson operated the plant through a subsidiary known as Fercleve. The plant produced just of 0.852% uranium-235 in October. Leaks limited production and forced shutdowns over the next few months, but in June 1945 it produced . By March 1945, all 21 production racks were operating. Initially the output of S-50 was fed into Y-12, but starting in March 1945 all three enrichment processes were run in series. S-50 became the first stage, enriching from 0.71% to 0.89%. This material was fed into the gaseous diffusion process in the K-25 plant, which produced a product enriched to about 23%. This was, in turn, fed into Y-12, which boosted it to about 89%, sufficient for nuclear weapons. Aggregate U-235 production About of uranium enriched to 89% uranium-235 was delivered to Los Alamos by July 1945. The entire 50 kg, along with some 50%-enriched, averaging out to about 85% enriched, were used in Little Boy. Plutonium The second line of development pursued by the Manhattan Project used the fissile element plutonium. Although small amounts of plutonium exist in nature, the best way to obtain large quantities of the element is in a nuclear reactor, in which natural uranium is bombarded by neutrons. The uranium-238 is transmuted into uranium-239, which rapidly decays, first into neptunium-239 and then into plutonium-239. Only a small amount of the uranium-238 will be transformed, so the plutonium must be chemically separated from the remaining uranium, from any initial impurities, and from fission products. X-10 Graphite Reactor In March 1943, DuPont began construction of a plutonium plant on a site at Oak Ridge. Intended as a pilot plant for the larger production facilities at Hanford, it included the air-cooled X-10 Graphite Reactor, a chemical separation plant, and support facilities. Because of the subsequent decision to construct water-cooled reactors at Hanford, only the chemical separation plant operated as a true pilot. The X-10 Graphite Reactor consisted of a huge block of graphite, long on each side, weighing around , surrounded by of high-density concrete as a radiation shield. The greatest difficulty was encountered with the uranium slugs produced by Mallinckrodt and Metal Hydrides. These somehow had to be coated in aluminum to avoid corrosion and the escape of fission products into the cooling system. The Grasselli Chemical Company attempted to develop a hot dipping process without success. Meanwhile, Alcoa tried canning. A new process for flux-less welding was developed, and 97% of the cans passed a standard vacuum test, but high temperature tests indicated a failure rate of more than 50%. Nonetheless, production began in June 1943. The Metallurgical Laboratory eventually developed an improved welding technique with the help of General Electric, which was incorporated into the production process in October 1943. Watched by Fermi and Compton, the X-10 Graphite Reactor went critical on 4 November 1943 with about of uranium. A week later the load was increased to , raising its power generation to 500 kW, and by the end of the month the first 500 mg of plutonium was created. Modifications over time raised the power to 4,000 kW in July 1944. X-10 operated as a production plant until January 1945, when it was turned over to research activities. Hanford reactors Although an air-cooled design was chosen for the reactor at Oak Ridge to facilitate rapid construction, it was recognized that this would be impractical for the much larger production reactors. Initial designs by the Metallurgical Laboratory and DuPont used helium for cooling, before they determined that a water-cooled reactor would be simpler, cheaper and quicker to build. The design did not become available until 4 October 1943; in the meantime, Matthias concentrated on improving the Hanford Site by erecting accommodations, improving the roads, building a railway switch line, and upgrading the electricity, water and telephone lines. As at Oak Ridge, the most difficulty was encountered while canning the uranium slugs, which commenced at Hanford in March 1944. They were pickled to remove dirt and impurities, dipped in molten bronze, tin, and aluminum-silicon alloy, canned using hydraulic presses, and then capped using arc welding under an argon atmosphere. Finally, they were subjected to a series of tests to detect holes or faulty welds. Disappointingly, most canned slugs initially failed the tests, resulting in an output of only a handful of canned slugs per day. But steady progress was made and by June 1944 production increased to the point where it appeared that enough canned slugs would be available to start Reactor B on schedule in August 1944. Work began on Reactor B, the first of six planned 250 MW reactors, on 10 October 1943. The reactor complexes were given letter designations A through F, with B, D and F sites chosen to be developed first, as this maximised the distance between the reactors. They would be the only ones constructed during the Manhattan Project. Some of steel, of concrete, 50,000 concrete blocks and 71,000 concrete bricks were used to construct the high building. Construction of the reactor itself commenced in February 1944. Watched by Compton, Matthias, DuPont's Crawford Greenewalt, Leona Woods and Fermi, who inserted the first slug, the reactor was powered up beginning on 13 September 1944. Over the next few days, 838 tubes were loaded and the reactor went critical. Shortly after midnight on 27 September, the operators began to withdraw the control rods to initiate production. At first all appeared well but around 03:00 the power level started to drop and by 06:30 the reactor had shut down completely. The cooling water was investigated to see if there was a leak or contamination. The next day the reactor started up again, only to shut down once more. Fermi contacted Chien-Shiung Wu, who identified the cause of the problem as neutron poisoning from xenon-135, which has a half-life of 9.2 hours. Fermi, Woods, Donald J. Hughes and John Archibald Wheeler then calculated the nuclear cross section of xenon-135, which turned out to be 30,000 times that of uranium. DuPont engineer George Graves had deviated from the Metallurgical Laboratory's original design in which the reactor had 1,500 tubes arranged in a circle, and had added an additional 504 tubes to fill in the corners. The scientists had originally considered this overengineering a waste of time and money, but Fermi realized that by loading all 2,004 tubes, the reactor could reach the required power level and efficiently produce plutonium. Reactor D was started on 17 December 1944 and Reactor F on 25 February 1945. Separation process Meanwhile, the chemists considered the problem of how plutonium could be separated from uranium when its chemical properties were not known. Working with the minute quantities of plutonium available at the Metallurgical Laboratory in 1942, a team under Charles M. Cooper developed a lanthanum fluoride process for separating uranium and plutonium, which was chosen for the pilot separation plant. A second separation process, the bismuth phosphate process, was subsequently developed by Seaborg and Stanly G. Thomson. This process worked by toggling plutonium between its +4 and +6 oxidation states in solutions of bismuth phosphate. In the former state, the plutonium was precipitated; in the latter, it stayed in solution and the other products were precipitated. Greenewalt favored the bismuth phosphate process due to the corrosive nature of lanthanum fluoride, and it was selected for the Hanford separation plants. Once X-10 began producing plutonium, the pilot separation plant was put to the test. The first batch was processed at 40% efficiency but over the next few months this was raised to 90%. At Hanford, top priority was initially given to the installations in the 300 area. This contained buildings for testing materials, preparing uranium, and assembling and calibrating instrumentation. One of the buildings housed the canning equipment for the uranium slugs, while another contained a small test reactor. Notwithstanding the high priority allocated to it, work on the 300 area fell behind schedule due to the unique and complex nature of the 300 area facilities, and wartime shortages of labor and materials. Early plans called for the construction of two separation plants in each of the areas known as 200-West and 200-East. This was subsequently reduced to two, the T and U plants, in 200-West and one, the B plant, at 200-East. Each separation plant consisted of four buildings: a process cell building or "canyon" (known as 221), a concentration building (224), a purification building (231) and a magazine store (213). The canyons were each long and wide. Each consisted of forty cells. Work began on 221-T and 221-U in January 1944, with the former completed in September and the latter in December. The 221-B building followed in March 1945. Because of the high levels of radioactivity involved, all work in the separation plants had to be conducted by remote control using closed-circuit television, something unheard of in 1943. Maintenance was carried out with the aid of an overhead crane and specially designed tools. The 224 buildings were smaller because they had less material to process, and it was less radioactive. The 224-T and 224-U buildings were completed on 8 October 1944, and 224-B followed on 10 February 1945. The purification methods that were eventually used in 231-W were still unknown when construction commenced on 8 April 1944, but the plant was complete and the methods were selected by the end of the year. On 5 February 1945, Matthias hand-delivered the first shipment of 80 g of 95%-pure plutonium nitrate to a Los Alamos courier in Los Angeles. Weapon design In 1943, development efforts were directed to a gun-type fission weapon with plutonium called Thin Man. Initial research on the properties of plutonium was done using cyclotron-generated plutonium-239, which was extremely pure, but could only be created in very small amounts. Los Alamos received the first sample of plutonium from the Clinton X-10 reactor in April 1944 and within days Emilio Segrè discovered a problem: the reactor-bred plutonium had a higher concentration of plutonium-240, resulting in up to five times the spontaneous fission rate of cyclotron plutonium. Seaborg had correctly predicted in March 1943 that some of the plutonium-239 would absorb a neutron and become plutonium-240. This made reactor plutonium unsuitable for use in a gun-type weapon. The plutonium-240 would start the chain reaction too quickly, causing a predetonation that would release enough energy to disperse the critical mass with a minimal amount of plutonium reacted (a fizzle). A faster gun was suggested but found to be impractical. The possibility of separating the isotopes was considered and rejected, as plutonium-240 is even harder to separate from plutonium-239 than uranium-235 from uranium-238. Work on an alternative method of bomb design, known as implosion, had begun earlier under the direction of the physicist Seth Neddermeyer. Implosion used explosives to crush a subcritical sphere of fissile material into a smaller and denser form. When the fissile atoms are packed closer together, the rate of neutron capture increases, and the mass becomes a critical mass. The metal needs to travel only a very short distance, so the critical mass is assembled in much less time than it would take with the gun method. Neddermeyer's 1943 and early 1944 investigations into implosion showed promise, but also made it clear that the problem would be much more difficult from a theoretical and engineering perspective than the gun design. In September 1943, John von Neumann, who had experience with shaped charges used in armor-piercing shells, argued that not only would implosion reduce the danger of predetonation and fizzle, but would make more efficient use of the fissionable material. He proposed using a spherical configuration instead of the cylindrical one that Neddermeyer was working on. By July 1944, Oppenheimer had concluded plutonium could not be used in a gun design, and opted for implosion. The accelerated effort on an implosion design, codenamed Fat Man, began in August 1944 when Oppenheimer implemented a sweeping reorganization of the Los Alamos laboratory to focus on implosion. Two new groups were created at Los Alamos to develop the implosion weapon, X (for explosives) Division headed by explosives expert George Kistiakowsky and G (for gadget) Division under Robert Bacher. The new design that von Neumann and T (for theoretical) Division, most notably Rudolf Peierls, had devised used explosive lenses to focus the explosion onto a spherical shape using a combination of both slow and fast high explosives. The design of lenses that detonated with the proper shape and velocity turned out to be slow, difficult and frustrating. Various explosives were tested before settling on composition B as the fast explosive and baratol as the slow explosive. The final design resembled a soccer ball, with 20 hexagonal and 12 pentagonal lenses, each weighing about . Getting the detonation just right required fast, reliable and safe electrical detonators, of which there were two for each lens for reliability. It was therefore decided to use exploding-bridgewire detonators, a new invention developed at Los Alamos by a group led by Luis Alvarez. A contract for their manufacture was given to Raytheon. To study the behavior of converging shock waves, Robert Serber devised the RaLa Experiment, which used the short-lived radioisotope lanthanum-140, a potent source of gamma radiation. The gamma ray source was placed in the center of a metal sphere surrounded by the explosive lenses, which in turn were inside in an ionization chamber. This allowed the taking of an X-ray movie of the implosion. The lenses were designed primarily using this series of tests. In his history of the Los Alamos project, David Hawkins wrote: "RaLa became the most important single experiment affecting the final bomb design". Within the explosives was the thick aluminum pusher, which provided a smooth transition from the relatively low density explosive to the next layer, the thick tamper of natural uranium. Its main job was to hold the critical mass together as long as possible, but it would also reflect neutrons back into the core. Some part of it might fission as well. To prevent predetonation by an external neutron, the tamper was coated in a thin layer of boron. A polonium-beryllium modulated neutron initiator, known as an "urchin" because its shape resembled a sea urchin, was developed to start the chain reaction at precisely the right moment. This work with the chemistry and metallurgy of radioactive polonium was directed by Charles Allen Thomas of the Monsanto Company and became known as the Dayton Project. Testing required up to 500 curies per month of polonium, which Monsanto was able to deliver. The whole assembly was encased in a duralumin bomb casing to protect it from bullets and flak. The ultimate task of the metallurgists was to determine how to cast plutonium into a sphere. The difficulties became apparent when attempts to measure the density of plutonium gave inconsistent results. At first contamination was believed to be the cause, but it was soon determined that there were multiple allotropes of plutonium. The brittle α phase that exists at room temperature changes to the plastic β phase at higher temperatures. Attention then shifted to the even more malleable δ phase that normally exists in the 300 °C to 450 °C range. It was found that this was stable at room temperature when alloyed with aluminum, but aluminum emits neutrons when bombarded with alpha particles, which would exacerbate the pre-ignition problem. The metallurgists then hit upon a plutonium-gallium alloy, which stabilized the δ phase and could be hot pressed into the desired spherical shape. As plutonium was found to corrode readily, the sphere was coated with nickel. The work proved dangerous. By the end of the war, half the experienced chemists and metallurgists had to be removed from work with plutonium when unacceptably high levels of the element appeared in their urine. A minor fire at Los Alamos in January 1945 led to a fear that a fire in the plutonium laboratory might contaminate the whole town, and Groves authorized the construction of a new facility for plutonium chemistry and metallurgy, which became known as the DP-site. The hemispheres for the first plutonium pit (or core) were produced and delivered on 2 July 1945. Three more hemispheres followed on 23 July and were delivered three days later. Trinity Because of the complexity of an implosion-style weapon, it was decided that, despite the waste of fissile material, an initial test would be required. Groves approved the test, subject to the active material being recovered. Consideration was therefore given to a controlled fizzle, but Oppenheimer opted instead for a full-scale nuclear test, codenamed "Trinity". In March 1944, planning for the test was assigned to Kenneth Bainbridge, a professor of physics at Harvard, working under Kistiakowsky. Bainbridge selected the bombing range near Alamogordo Army Airfield as the site for the test. Bainbridge worked with Captain Samuel P. Davalos on the construction of the Trinity Base Camp and its facilities, which included barracks, warehouses, workshops, an explosive magazine and a commissary. Groves did not relish the prospect of explaining to a Senate committee the loss of a billion dollars worth of plutonium, so a cylindrical containment vessel codenamed "Jumbo" was constructed to recover the active material in the event of a failure. Measuring long and wide, it was fabricated at great expense from of iron and steel by Babcock & Wilcox in Barberton, Ohio. Brought in a special railroad car to a siding in Pope, New Mexico, it was transported the last to the test site on a trailer pulled by two tractors. By the time it arrived, however, confidence in the implosion method was high enough, and the availability of plutonium was sufficient, that Oppenheimer decided not to use it. Instead, it was placed atop a steel tower from the weapon as a rough measure of how powerful the explosion would be. In the end, Jumbo survived, although its tower did not, adding credence to the belief that Jumbo would have successfully contained a fizzled explosion. A pre-test explosion was conducted on 7 May 1945 to calibrate the instruments. A wooden test platform was erected from Ground Zero and piled with of TNT spiked with nuclear fission products in the form of an irradiated uranium slug from Hanford, which was dissolved and poured into tubing inside the explosive. This explosion was observed by Oppenheimer and Groves's new deputy commander, Brigadier General Thomas Farrell. The pre-test produced data that proved vital for the Trinity test. For the actual test, the weapon, nicknamed "the gadget", was hoisted to the top of a steel tower, as detonation at that height would give a better indication of how the weapon would behave when dropped from a bomber. Detonation in the air maximized the energy applied directly to the target, and generated less nuclear fallout. The gadget was assembled under the supervision of Norris Bradbury at the nearby McDonald Ranch House on 13 July, and precariously winched up the tower the following day. Observers included Bush, Chadwick, Conant, Farrell, Fermi, Groves, Lawrence, Oppenheimer and Tolman. At 05:30 on 16 July 1945 the gadget exploded with an energy equivalent of around 20 kilotons of TNT, leaving a crater of Trinitite (radioactive glass) in the desert wide. The shock wave was felt over away, and the mushroom cloud reached in height. It was heard as far away as El Paso, Texas, so Groves issued a cover story about an ammunition magazine explosion at Alamogordo Field. Oppenheimer later recalled that, while witnessing the explosion, he thought of a verse from the Hindu holy book, the Bhagavad Gita (XI,12): Years later he would explain that another verse had also entered his head at that time: Personnel In June 1944, the Manhattan Project employed some 129,000 workers, of whom 84,500 were construction workers, 40,500 were plant operators and 1,800 were military personnel. As construction activity fell off, the workforce declined to 100,000 a year later, but the number of military personnel increased to 5,600. Procuring the required numbers of workers, especially highly skilled workers, in competition with other vital wartime programs proved very difficult. In 1943, Groves obtained a special temporary priority for labor from the War Manpower Commission. In March 1944, both the War Production Board and the War Manpower Commission gave the project their highest priority. Tolman and Conant, in their role as the project's scientific advisers, drew up a list of candidate scientists and had them rated by scientists already working on the project. Groves then sent a personal letter to the head of their university or company asking for them to be released for essential war work. At the University of Wisconsin–Madison, Stanislaw Ulam gave one of his students, Joan Hinton, an exam early, so she could leave to do war work. A few weeks later, Ulam received a letter from Hans Bethe, inviting him to join the project. Conant personally persuaded Kistiakowsky to join the project. One source of skilled personnel was the Army itself, particularly the Army Specialized Training Program. In 1943, the MED created the Special Engineer Detachment (SED), with an authorized strength of 675. Technicians and skilled workers drafted into the Army were assigned to the SED. Another source was the Women's Army Corps (WAC). Initially intended for clerical tasks handling classified material, the WACs were soon tapped for technical and scientific tasks as well. On 1 February 1945, all military personnel assigned to the MED, including all SED detachments, were assigned to the 9812th Technical Service Unit, except at Los Alamos, where military personnel other than SED, including the WACs and Military Police, were assigned to the 4817th Service Command Unit. An Associate Professor of Radiology at the University of Rochester School of Medicine, Stafford L. Warren, was commissioned as a colonel in the United States Army Medical Corps, and appointed as chief of the MED's Medical Section and Groves' medical advisor. Warren's initial task was to staff hospitals at Oak Ridge, Richland and Los Alamos. The Medical Section was responsible for medical research, but also for the MED's health and safety programs. This presented an enormous challenge, because workers were handling a variety of toxic chemicals, using hazardous liquids and gases under high pressures, working with high voltages, and performing experiments involving explosives, not to mention the largely unknown dangers presented by radioactivity and handling fissile materials. Yet in December 1945, the National Safety Council presented the Manhattan Project with the Award of Honor for Distinguished Service to Safety in recognition of its safety record. Between January 1943 and June 1945, there were 62 fatalities and 3,879 disabling injuries, which was about 62 percent below the rate of private industry. Secrecy A 1945 Life article estimated that before the Hiroshima and Nagasaki bombings "probably no more than a few dozen men in the entire country knew the full meaning of the Manhattan Project, and perhaps only a thousand others even were aware that work on atoms was involved." The magazine wrote that the more than 100,000 others employed with the project "worked like moles in the dark". Warned that disclosing the project's secrets was punishable by 10 years in prison or a fine of , they saw enormous quantities of raw materials enter factories with nothing coming out, and monitored "dials and switches while behind thick concrete walls mysterious reactions took place" without knowing the purpose of their jobs. In December 1945 the United States Army published a secret report analysing and assessing the security apparatus surrounding the Manhattan Project. The report states that the Manhattan Project was "more drastically guarded than any other highly secret war development." The security infrastructure surrounding the Manhattan Project was so vast and thorough that in the early days of the project in 1943, security investigators vetted 400,000 potential employees and 600 companies that would be involved in all aspects of the project for potential security risks. Oak Ridge security personnel considered any private party with more than seven people as suspicious, and residents—who believed that US government agents were secretly among them—avoided repeatedly inviting the same guests. Although original residents of the area could be buried in existing cemeteries, every coffin was reportedly opened for inspection. Everyone, including top military officials, and their automobiles were searched when entering and exiting project facilities. One Oak Ridge worker stated that "if you got inquisitive, you were called on the carpet within two hours by government secret agents. Usually those summoned to explain were then escorted bag and baggage to the gate and ordered to keep going". Despite being told that their work would help end the war and perhaps all future wars, not seeing or understanding the results of their often tedious duties—or even typical side effects of factory work such as smoke from smokestacks—and the war in Europe ending without the use of their work, caused serious morale problems among workers and caused many rumors to spread. One manager stated after the war: Another worker told of how, working in a laundry, she every day held "a special instrument" to uniforms and listened for "a clicking noise". She learned only after the war that she had been performing the important task of checking for radiation with a geiger counter. To improve morale among such workers Oak Ridge created an extensive system of intramural sports leagues, including 10 baseball teams, 81 softball teams, and 26 football teams. Censorship Voluntary censorship of atomic information began before the Manhattan Project. After the start of the European war in 1939 American scientists began avoiding publishing military-related research, and in 1940 scientific journals began asking the National Academy of Sciences to clear articles. William L. Laurence of The New York Times, who wrote an article on atomic fission in The Saturday Evening Post of 7 September 1940, later learned that government officials asked librarians nationwide in 1943 to withdraw the issue. The Soviets noticed the silence, however. In April 1942 nuclear physicist Georgy Flyorov wrote to Josef Stalin on the absence of articles on nuclear fission in American journals; this resulted in the Soviet Union establishing its own atomic bomb project. The Manhattan Project operated under tight security lest its discovery induce Axis powers, especially Germany, to accelerate their own nuclear projects or undertake covert operations against the project. The government's Office of Censorship, by contrast, relied on the press to comply with a voluntary code of conduct it published, and the project at first avoided notifying the office. By early 1943 newspapers began publishing reports of large construction in Tennessee and Washington based on public records, and the office began discussing with the project how to maintain secrecy. In June the Office of Censorship asked newspapers and broadcasters to avoid discussing "atom smashing, atomic energy, atomic fission, atomic splitting, or any of their equivalents. The use for military purposes of radium or radioactive materials, heavy water, high voltage discharge equipment, cyclotrons." The office also asked to avoid discussion of "polonium, uranium, ytterbium, hafnium, protactinium, radium, rhenium, thorium, deuterium"; only uranium was sensitive, but was listed with other elements to hide its importance. Soviet spies The prospect of sabotage was always present, and sometimes suspected when there were equipment failures. While there were some problems believed to be the result of careless or disgruntled employees, there were no confirmed instances of Axis-instigated sabotage. However, on 10 March 1945, a Japanese fire balloon struck a power line, and the resulting power surge caused the three reactors at Hanford to be temporarily shut down. With so many people involved, security was a difficult task. A special Counter Intelligence Corps detachment was formed to handle the project's security issues. By 1943, it was clear that the Soviet Union was attempting to penetrate the project. Lieutenant Colonel Boris T. Pash, the head of the Counter Intelligence Branch of the Western Defense Command, investigated suspected Soviet espionage at the Radiation Laboratory in Berkeley. Oppenheimer informed Pash that he had been approached by a fellow professor at Berkeley, Haakon Chevalier, about passing information to the Soviet Union. The most successful Soviet spy was Klaus Fuchs, a member of the British Mission who played an important part at Los Alamos. The 1950 revelation of his espionage activities damaged the United States' nuclear cooperation with Britain and Canada. Subsequently, other instances of espionage were uncovered, leading to the arrest of Harry Gold, David Greenglass, and Julius and Ethel Rosenberg. Other spies like George Koval and Theodore Hall remained unknown for decades. The value of the espionage is difficult to quantify, as the principal constraint on the Soviet atomic bomb project was a shortage of uranium ore. The consensus is that espionage saved the Soviets one or two years of effort. Foreign intelligence In addition to developing the atomic bomb, the Manhattan Project was charged with gathering intelligence on the German nuclear energy project. It was believed that the Japanese nuclear weapons program was not far advanced because Japan had little access to uranium ore, but it was initially feared that Germany was very close to developing its own weapons. At the instigation of the Manhattan Project, a bombing and sabotage campaign was carried out against heavy water plants in German-occupied Norway. A small mission was created, jointly staffed by the Office of Naval Intelligence, OSRD, the Manhattan Project, and Army Intelligence (G-2), to investigate enemy scientific developments. It was not restricted to those involving nuclear weapons. The Chief of Army Intelligence, Major General George V. Strong, appointed Boris Pash to command the unit, which was codenamed "Alsos", a Greek word meaning "grove". The Alsos Mission to Italy questioned staff of the physics laboratory at the University of Rome following the capture of the city in June 1944. Meanwhile, Pash formed a combined British and American Alsos mission in London under the command of Captain Horace K. Calvert to participate in Operation Overlord. Groves considered the risk that the Germans might attempt to disrupt the Normandy landings with radioactive poisons was sufficient to warn General Dwight D. Eisenhower and send an officer to brief his chief of staff, Lieutenant General Walter Bedell Smith. Under the codename Operation Peppermint, special equipment was prepared and Chemical Warfare Service teams were trained in its use. Following in the wake of the advancing Allied armies, Pash and Calvert interviewed Frédéric Joliot-Curie about the activities of German scientists. They spoke to officials at Union Minière du Haut Katanga about uranium shipments to Germany. They tracked down 68 tons of ore in Belgium and 30 tons in France. The interrogation of German prisoners indicated that uranium and thorium were being processed in Oranienburg, 20 miles north of Berlin, so Groves arranged for it to be bombed on 15 March 1945. An Alsos team went to Stassfurt in the Soviet Occupation Zone and retrieved 11 tons of ore from WIFO. In April 1945, Pash, in command of a composite force known as T-Force, conducted Operation Harborage, a sweep behind enemy lines of the cities of Hechingen, Bisingen, and Haigerloch that were the heart of the German nuclear effort. T-Force captured the nuclear laboratories, documents, equipment and supplies, including heavy water and 1.5 tons of metallic uranium. Alsos teams rounded up German scientists including Kurt Diebner, Otto Hahn, Walther Gerlach, Werner Heisenberg, and Carl Friedrich von Weizsäcker, who were taken to England where they were interned at Farm Hall, a bugged house in Godmanchester. After the bombs were detonated in Japan, the Germans were forced to confront the fact that the Allies had done what they could not. Atomic bombings of Hiroshima and Nagasaki Preparations Starting in November 1943, the Army Air Forces Materiel Command at Wright Field, Ohio, began Silverplate, the codename modification of B-29s to carry the bombs. Test drops were carried out at Muroc Army Air Field, California, and the Naval Ordnance Test Station at Inyokern, California. Groves met with the Chief of United States Army Air Forces (USAAF), General Henry H. Arnold, in March 1944 to discuss the delivery of the finished bombs to their targets. The only Allied aircraft capable of carrying the long Thin Man or the wide Fat Man was the British Avro Lancaster, but using a British aircraft would have caused difficulties with maintenance. Tests were carried out with modified Lancasters at Enstone Airfield, but Groves hoped that the American Boeing B-29 Superfortress could be modified to carry Thin Man by joining its two bomb bays together. Arnold promised that no effort would be spared to modify B-29s to do the job, and designated Major General Oliver P. Echols as the USAAF liaison to the Manhattan Project. In turn, Echols named Colonel Roscoe C. Wilson as his alternate, and Wilson became Manhattan Project's main USAAF contact. President Roosevelt instructed Groves that if the atomic bombs were ready before the war with Germany ended, he should be ready to drop them on Germany. The 509th Composite Group was activated on 17 December 1944 at Wendover Army Air Field, Utah, under the command of Colonel Paul W. Tibbets. This base, close to the border with Nevada, was codenamed "Kingman" or "W-47". Training was conducted at Wendover and at Batista Army Airfield, Cuba, where the 393d Bombardment Squadron practiced long-distance flights over water, and dropping dummy pumpkin bombs. A special unit known as Project Alberta was formed at Los Alamos under Navy Captain William S. Parsons from Project Y as part of the Manhattan Project to assist in preparing and delivering the bombs. Commander Frederick L. Ashworth from Alberta met with Fleet Admiral Chester W. Nimitz on Guam in February 1945 to inform him of the project. While he was there, Ashworth selected North Field on the Pacific Island Tinian as a base for the 509th Composite Group, and reserved space for the group and its buildings. The group deployed there in July 1945. Farrell arrived at Tinian on 30 July as the Manhattan Project representative. Most of the components for Little Boy left San Francisco on the cruiser on 16 July and arrived on Tinian on 26 July. Four days later the ship was sunk by a Japanese submarine. The remaining components, which included six uranium-235 rings, were delivered by three C-54 Skymasters of the 509th Group's 320th Troop Carrier Squadron. Two Fat Man assemblies travelled to Tinian in specially modified 509th Composite Group B-29s. The first plutonium core went in a special C-54. In late April, a joint targeting committee of the Manhattan District and USAAF was established to determine which cities in Japan should be targets, and recommended Kokura, Hiroshima, Niigata, and Kyoto. At this point, Secretary of War Henry L. Stimson intervened, announcing that he would be making the targeting decision, and that he would not authorize the bombing of Kyoto on the grounds of its historical and religious significance. Groves therefore asked Arnold to remove Kyoto not just from the list of nuclear targets, but from targets for conventional bombing as well. One of Kyoto's substitutes was Nagasaki. Bombings In May 1945, the Interim Committee was created to advise on wartime and postwar use of nuclear energy. The committee was chaired by Stimson, with James F. Byrnes, a former US Senator soon to be Secretary of State, as President Harry S. Truman's personal representative; Ralph A. Bard, the Under Secretary of the Navy; William L. Clayton, the Assistant Secretary of State; Vannevar Bush; Karl T. Compton; James B. Conant; and George L. Harrison, an assistant to Stimson and president of New York Life Insurance Company. The Interim Committee in turn established a scientific panel consisting of Arthur Compton, Fermi, Lawrence and Oppenheimer to advise it on scientific issues. In its presentation to the Interim Committee, the scientific panel offered its opinion not just on the likely physical effects of an atomic bomb, but on its probable military and political impact. At the Potsdam Conference in Germany, Truman was informed that the Trinity test had been successful. He told Stalin, the leader of the Soviet Union, that the US had a new superweapon, without giving any details. This was the first official communication to the Soviet Union about the bomb, but Stalin already knew about it from spies. With the authorization to use the bomb against Japan already given, no alternatives were considered after the Japanese rejection of the Potsdam Declaration. On 6 August 1945, a Boeing B-29 Superfortress (Enola Gay) of the 393d Bombardment Squadron, piloted by Tibbets, lifted off from North Field with a Little Boy in its bomb bay. Hiroshima, the headquarters of the 2nd General Army and Fifth Division and a port of embarkation, was the primary target of the mission, with Kokura and Nagasaki as alternatives. With Farrell's permission, Parsons, the weaponeer in charge of the mission, completed the bomb assembly in the air to minimize the risks of a nuclear explosion in the event of a crash during takeoff. The bomb detonated at an altitude of with a blast that was later estimated to be the equivalent of 13 kilotons of TNT. An area of approximately was destroyed. Japanese officials determined that 69% of Hiroshima's buildings were destroyed and another 6–7% damaged. About 70,000 to 80,000 people, of whom 20,000 were Japanese combatants and 20,000 were Korean slave laborers, or some 30% of the population of Hiroshima, were killed immediately, and another 70,000 injured. On the morning of 9 August 1945, a second B-29 (Bockscar), piloted by the 393d Bombardment Squadron's commander, Major Charles W. Sweeney, lifted off with a Fat Man on board. This time, Ashworth served as weaponeer and Kokura was the primary target. Sweeney took off with the weapon already armed but with the electrical safety plugs still engaged. When they reached Kokura, they found cloud cover had obscured the city, prohibiting the visual attack required by orders. After three runs over the city, and with fuel running low, they headed for the secondary target, Nagasaki. Ashworth decided that a radar approach would be used if the target was obscured, but a last-minute break in the clouds over Nagasaki allowed a visual approach as ordered. The Fat Man was dropped over the city's industrial valley midway between the Mitsubishi Steel and Arms Works in the south and the Mitsubishi-Urakami Ordnance Works in the north. The resulting explosion had a blast yield equivalent to 21 kilotons of TNT, roughly the same as the Trinity blast, but was confined to the Urakami Valley, and a major portion of the city was protected by the intervening hills, resulting in the destruction of about 44% of the city. The bombing also crippled the city's industrial production extensively and killed 23,200–28,200 Japanese industrial workers and 150 Japanese soldiers. Overall, an estimated 35,000–40,000 people were killed and 60,000 injured. Groves expected to have another atomic bomb ready for use on 19 August, with three more in September and a further three in October. Two more Fat Man assemblies were readied, and scheduled to leave Kirtland Field for Tinian on 11 and 14 August. At Los Alamos, technicians worked 24 hours straight to cast another plutonium core. Although cast, it still needed to be pressed and coated, which would take until 16 August. It could therefore have been ready for use on 19 August. On 10 August, Truman secretly requested that additional atomic bombs not be dropped on Japan without his express authority. Groves suspended the third core's shipment on his own authority on 13 August. On 11 August, Groves phoned Warren with orders to organize a survey team to report on the damage and radioactivity at Hiroshima and Nagasaki. A party equipped with portable Geiger counters arrived in Hiroshima on 8 September headed by Farrell and Warren, with Japanese Rear Admiral Masao Tsuzuki, who acted as a translator. They remained in Hiroshima until 14 September and then surveyed Nagasaki from 19 September to 8 October. This and other scientific missions to Japan provided valuable scientific and historical data. The necessity of the bombings of Hiroshima and Nagasaki became a subject of controversy among historians. Some questioned whether an "atomic diplomacy" would not have attained the same goals and disputed whether the bombings or the Soviet declaration of war on Japan was decisive. The Franck Report was the most notable effort pushing for a demonstration but was turned down by the Interim Committee's scientific panel. The Szilárd petition, drafted in July 1945 and signed by dozens of scientists working on the Manhattan Project, was a late attempt at warning President Harry S. Truman about his responsibility in using such weapons. After the war Seeing the work they had not understood produce the Hiroshima and Nagasaki bombs amazed the workers of the Manhattan Project as much as the rest of the world; newspapers in Oak Ridge announcing the Hiroshima bomb sold for $1 ($ today). Although the bombs' existence was public, secrecy continued, and many workers remained ignorant of their jobs; one stated in 1946, "I don't know what the hell I'm doing besides looking into a ——— and turning a ——— alongside a ———. I don't know anything about it, and there's nothing to say". Many residents continued to avoid discussion of "the stuff" in ordinary conversation despite it being the reason for their town's existence. In anticipation of the bombings, Groves had Henry DeWolf Smyth prepare a history for public consumption. Atomic Energy for Military Purposes, better known as the "Smyth Report", was released to the public on 12 August 1945. Groves and Nichols presented Army–Navy "E" Awards to key contractors, whose involvement had hitherto been secret. Over 20 awards of the Presidential Medal for Merit were made to key contractors and scientists, including Bush and Oppenheimer. Military personnel received the Legion of Merit, including the commander of the Women's Army Corps detachment, Captain Arlene G. Scheidenhelm. At Hanford, plutonium production fell off as Reactors B, D and F wore out, poisoned by fission products and swelling of the graphite moderator known as the Wigner effect. The swelling damaged the charging tubes where the uranium was irradiated to produce plutonium, rendering them unusable. In order to maintain the supply of polonium for the urchin initiators, production was curtailed and the oldest unit, B pile, was closed down so at least one reactor would be available in the future. Research continued, with DuPont and the Metallurgical Laboratory developing a redox solvent extraction process as an alternative plutonium extraction technique to the bismuth phosphate process, which left unspent uranium in a state from which it could not easily be recovered. Bomb engineering was carried out by the Z Division, named for its director, Dr. Jerrold R. Zacharias from Los Alamos. Z Division was initially located at Wendover Field but moved to Oxnard Field, New Mexico, in September 1945 to be closer to Los Alamos. This marked the beginning of Sandia Base. Nearby Kirtland Field was used as a B-29 base for aircraft compatibility and drop tests. By October, all the staff and facilities at Wendover had been transferred to Sandia. As reservist officers were demobilized, they were replaced by about fifty hand-picked regular officers. Nichols recommended that S-50 and the Alpha tracks at Y-12 be closed down. This was done in September. Although performing better than ever, the Alpha tracks could not compete with K-25 and the new K-27, which had commenced operation in January 1946. In December, the Y-12 plant was closed, thereby cutting the Tennessee Eastman payroll from 8,600 to 1,500 and saving $2 million a month. Nowhere was demobilization more of a problem than at Los Alamos, where there was an exodus of talent. Much remained to be done. The bombs used on Hiroshima and Nagasaki were like laboratory pieces; work would be required to make them simpler, safer and more reliable. Implosion methods needed to be developed for uranium in place of the wasteful gun method, and composite uranium-plutonium cores were needed now that plutonium was in short supply because of the problems with the reactors. However, uncertainty about the future of the laboratory made it hard to induce people to stay. Oppenheimer returned to his job at the University of California and Groves appointed Norris Bradbury as an interim replacement; Bradbury remained in the post for the next 25 years. Groves attempted to combat the dissatisfaction caused by the lack of amenities with a construction program that included an improved water supply, three hundred houses, and recreation facilities. Two Fat Man-type detonations were conducted at Bikini Atoll in July 1946 as part of Operation Crossroads to investigate the effect of nuclear weapons on warships. Able was detonated on 1 July 1946. The more spectacular Baker was detonated underwater on 25 July 1946. After the bombings at Hiroshima and Nagasaki, a number of Manhattan Project physicists founded the Bulletin of the Atomic Scientists, which began as an emergency action undertaken by scientists who saw urgent need for an immediate educational program about atomic weapons. In the face of the destructiveness of the new weapons and in anticipation of the nuclear arms race several project members including Bohr, Bush and Conant expressed the view that it was necessary to reach agreement on international control of nuclear research and atomic weapons. The Baruch Plan, unveiled in a speech to the newly formed United Nations Atomic Energy Commission (UNAEC) in June 1946, proposed the establishment of an international atomic development authority, but was not adopted. Following a domestic debate over the permanent management of the nuclear program, the United States Atomic Energy Commission (AEC) was created by the Atomic Energy Act of 1946 to take over the functions and assets of the Manhattan Project. It established civilian control over atomic development, and separated the development, production and control of atomic weapons from the military. Military aspects were taken over by the Armed Forces Special Weapons Project (AFSWP). Although the Manhattan Project ceased to exist on 31 December 1946, the Manhattan District was not abolished until 15 August 1947. Cost The project expenditure through 1 October 1945 was $1.845 billion, equivalent to less than nine days of wartime spending, and was $2.191 billion when the AEC assumed control on 1 January 1947. Total allocation was $2.4 billion. Over 90% of the cost was for building plants and producing the fissionable materials, and less than 10% for development and production of the weapons. A total of four weapons (the Trinity gadget, Little Boy, Fat Man, and an unused Fat Man bomb) were produced by the end of 1945, making the average cost per bomb around $500 million in 1945 dollars. By comparison, the project's total cost by the end of 1945 was about 90% of the total spent on the production of US small arms (not including ammunition) and 34% of the total spent on US tanks during the same period. Overall, it was the second most expensive weapons project undertaken by the United States in World War II, behind only the design and production of the Boeing B-29 Superfortress. Legacy The political and cultural impacts of the development of nuclear weapons were profound and far-reaching. William Laurence of The New York Times, the first to use the phrase "Atomic Age", became the official correspondent for the Manhattan Project in spring 1945. In 1943 and 1944 he unsuccessfully attempted to persuade the Office of Censorship to permit writing about the explosive potential of uranium, and government officials felt that he had earned the right to report on the biggest secret of the war. Laurence witnessed both the Trinity test and the bombing of Nagasaki and wrote the official press releases prepared for them. He went on to write a series of articles extolling the virtues of the new weapon. His reporting before and after the bombings helped to spur public awareness of the potential of nuclear technology and motivated its development in the United States and the Soviet Union. The wartime Manhattan Project left a legacy in the form of the network of national laboratories: the Lawrence Berkeley National Laboratory, Los Alamos National Laboratory, Oak Ridge National Laboratory, Argonne National Laboratory, and Ames Laboratory. Two more were established by Groves soon after the war, the Brookhaven National Laboratory at Upton, New York, and the Sandia National Laboratories at Albuquerque, New Mexico. Groves allocated $72 million to them for research activities in fiscal year 1946–1947. They would be in the vanguard of the kind of large-scale research that Alvin Weinberg, the director of the Oak Ridge National Laboratory, would call Big Science. The Naval Research Laboratory had long been interested in the prospect of using nuclear power for warship propulsion, and sought to create its own nuclear project. In May 1946, Nimitz, now Chief of Naval Operations, decided that the Navy should instead work with the Manhattan Project. A group of naval officers were assigned to Oak Ridge, the most senior of whom was Captain Hyman G. Rickover, who became assistant director there. They immersed themselves in the study of nuclear energy, laying the foundations for a nuclear-powered navy. A similar group of Air Force personnel arrived at Oak Ridge in September 1946 with the aim of developing nuclear aircraft. Their Nuclear Energy for the Propulsion of Aircraft (NEPA) project ran into formidable technical difficulties, and was ultimately cancelled. The ability of the new reactors to create radioactive isotopes in previously unheard-of quantities sparked a revolution in nuclear medicine in the immediate postwar years. Starting in mid-1946, Oak Ridge began distributing radioisotopes to hospitals and universities. Most of the orders were for iodine-131 and phosphorus-32, which were used in the diagnosis and treatment of cancer. In addition to medicine, isotopes were also used in biological, industrial and agricultural research. On handing over control to the Atomic Energy Commission, Groves bid farewell to the people who had worked on the Manhattan Project: In 2014, the United States Congress passed a law providing for a national park dedicated to the history of the Manhattan Project. The Manhattan Project National Historical Park was established on 10 November 2015. Notes Footnotes Citations References General, administrative, and diplomatic histories Lindorff, Dave, "Brothers against the Bureau: Ted Hall, the Soviet Union's youngest atomic spy, his rocket scientist brother Ed, and the untold story of how J. Edgar Hoover's biggest Manhattan Project bust was shut down", The Nation, vol. 314, no. 1 (10–17 January 2022), pp. 26–31. Technical histories (1967 interview with Groves) (Available on Wikimedia Commons) Participant accounts External links Features hundreds of audio/visual interviews with Manhattan Project veterans. Manhattan Project and Allied Scientists Collections at the University of Chicago Special Collections Research Center Atomic bombings of Hiroshima and Nagasaki Explosives engineering History of the Manhattan Project Military history of Canada during World War II Military history of the United Kingdom during World War II Military history of the United States during World War II Nuclear history of the United States Nuclear weapons program of the United States American secret government programs Secret military programs 1942 establishments in the United States 1946 disestablishments in the United States Projects established in 1942

19605

https://en.wikipedia.org/wiki/Main%20sequence

Main sequence

In astronomy, the main sequence is a continuous and distinctive band of stars that appears on plots of stellar color versus brightness. These color-magnitude plots are known as Hertzsprung–Russell diagrams after their co-developers, Ejnar Hertzsprung and Henry Norris Russell. Stars on this band are known as main-sequence stars or dwarf stars. These are the most numerous true stars in the universe, and include the Sun. After condensation and ignition of a star, it generates thermal energy in its dense core region through nuclear fusion of hydrogen into helium. During this stage of the star's lifetime, it is located on the main sequence at a position determined primarily by its mass, but also based upon its chemical composition and age. The cores of main-sequence stars are in hydrostatic equilibrium, where outward thermal pressure from the hot core is balanced by the inward pressure of gravitational collapse from the overlying layers. The strong dependence of the rate of energy generation on temperature and pressure helps to sustain this balance. Energy generated at the core makes its way to the surface and is radiated away at the photosphere. The energy is carried by either radiation or convection, with the latter occurring in regions with steeper temperature gradients, higher opacity or both. The main sequence is sometimes divided into upper and lower parts, based on the dominant process that a star uses to generate energy. Stars below about 1.5 times the mass of the Sun () primarily fuse hydrogen atoms together in a series of stages to form helium, a sequence called the proton–proton chain. Above this mass, in the upper main sequence, the nuclear fusion process mainly uses atoms of carbon, nitrogen, and oxygen as intermediaries in the CNO cycle that produces helium from hydrogen atoms. Main-sequence stars with more than two solar masses undergo convection in their core regions, which acts to stir up the newly created helium and maintain the proportion of fuel needed for fusion to occur. Below this mass, stars have cores that are entirely radiative with convective zones near the surface. With decreasing stellar mass, the proportion of the star forming a convective envelope steadily increases. Main-sequence stars below undergo convection throughout their mass. When core convection does not occur, a helium-rich core develops surrounded by an outer layer of hydrogen. In general, the more massive a star is, the shorter its lifespan on the main sequence. After the hydrogen fuel at the core has been consumed, the star evolves away from the main sequence on the HR diagram, into a supergiant, red giant, or directly to a white dwarf. History In the early part of the 20th century, information about the types and distances of stars became more readily available. The spectra of stars were shown to have distinctive features, which allowed them to be categorized. Annie Jump Cannon and Edward C. Pickering at Harvard College Observatory developed a method of categorization that became known as the Harvard Classification Scheme, published in the Harvard Annals in 1901. In Potsdam in 1906, the Danish astronomer Ejnar Hertzsprung noticed that the reddest stars—classified as K and M in the Harvard scheme—could be divided into two distinct groups. These stars are either much brighter than the Sun, or much fainter. To distinguish these groups, he called them "giant" and "dwarf" stars. The following year he began studying star clusters; large groupings of stars that are co-located at approximately the same distance. He published the first plots of color versus luminosity for these stars. These plots showed a prominent and continuous sequence of stars, which he named the Main Sequence. At Princeton University, Henry Norris Russell was following a similar course of research. He was studying the relationship between the spectral classification of stars and their actual brightness as corrected for distance—their absolute magnitude. For this purpose he used a set of stars that had reliable parallaxes and many of which had been categorized at Harvard. When he plotted the spectral types of these stars against their absolute magnitude, he found that dwarf stars followed a distinct relationship. This allowed the real brightness of a dwarf star to be predicted with reasonable accuracy. Of the red stars observed by Hertzsprung, the dwarf stars also followed the spectra-luminosity relationship discovered by Russell. However, the giant stars are much brighter than dwarfs and so do not follow the same relationship. Russell proposed that the "giant stars must have low density or great surface-brightness, and the reverse is true of dwarf stars". The same curve also showed that there were very few faint white stars. In 1933, Bengt Strömgren introduced the term Hertzsprung–Russell diagram to denote a luminosity-spectral class diagram. This name reflected the parallel development of this technique by both Hertzsprung and Russell earlier in the century. As evolutionary models of stars were developed during the 1930s, it was shown that, for stars of a uniform chemical composition, a relationship exists between a star's mass and its luminosity and radius. That is, for a given mass and composition, there is a unique solution for determining the star's radius and luminosity. This became known as the Vogt–Russell theorem; named after Heinrich Vogt and Henry Norris Russell. By this theorem, when a star's chemical composition and its position on the main sequence is known, so too is the star's mass and radius. (However, it was subsequently discovered that the theorem breaks down somewhat for stars of non-uniform composition.) A refined scheme for stellar classification was published in 1943 by William Wilson Morgan and Philip Childs Keenan. The MK classification assigned each star a spectral type—based on the Harvard classification—and a luminosity class. The Harvard classification had been developed by assigning a different letter to each star based on the strength of the hydrogen spectral line, before the relationship between spectra and temperature was known. When ordered by temperature and when duplicate classes were removed, the spectral types of stars followed, in order of decreasing temperature with colors ranging from blue to red, the sequence O, B, A, F, G, K, and M. (A popular mnemonic for memorizing this sequence of stellar classes is "Oh Be A Fine Girl/Guy, Kiss Me".) The luminosity class ranged from I to V, in order of decreasing luminosity. Stars of luminosity class V belonged to the main sequence. In April 2018, astronomers reported the detection of the most distant "ordinary" (i.e., main sequence) star, named Icarus (formally, MACS J1149 Lensed Star 1), at 9 billion light-years away from Earth. Formation and evolution When a protostar is formed from the collapse of a giant molecular cloud of gas and dust in the local interstellar medium, the initial composition is homogeneous throughout, consisting of about 70% hydrogen, 28% helium, and trace amounts of other elements, by mass. The initial mass of the star depends on the local conditions within the cloud. (The mass distribution of newly formed stars is described empirically by the initial mass function.) During the initial collapse, this pre-main-sequence star generates energy through gravitational contraction. Once sufficiently dense, stars begin converting hydrogen into helium and giving off energy through an exothermic nuclear fusion process. When nuclear fusion of hydrogen becomes the dominant energy production process and the excess energy gained from gravitational contraction has been lost, the star lies along a curve on the Hertzsprung–Russell diagram (or HR diagram) called the standard main sequence. Astronomers will sometimes refer to this stage as "zero age main sequence", or ZAMS. The ZAMS curve can be calculated using computer models of stellar properties at the point when stars begin hydrogen fusion. From this point, the brightness and surface temperature of stars typically increase with age. A star remains near its initial position on the main sequence until a significant amount of hydrogen in the core has been consumed, then begins to evolve into a more luminous star. (On the HR diagram, the evolving star moves up and to the right of the main sequence.) Thus the main sequence represents the primary hydrogen-burning stage of a star's lifetime. Properties The majority of stars on a typical HR diagram lie along the main-sequence curve. This line is pronounced because both the spectral type and the luminosity depend only on a star's mass, at least to zeroth-order approximation, as long as it is fusing hydrogen at its core—and that is what almost all stars spend most of their "active" lives doing. The temperature of a star determines its spectral type via its effect on the physical properties of plasma in its photosphere. A star's energy emission as a function of wavelength is influenced by both its temperature and composition. A key indicator of this energy distribution is given by the color index, B − V, which measures the star's magnitude in blue (B) and green-yellow (V) light by means of filters. This difference in magnitude provides a measure of a star's temperature. Dwarf terminology Main-sequence stars are called dwarf stars, but this terminology is partly historical and can be somewhat confusing. For the cooler stars, dwarfs such as red dwarfs, orange dwarfs, and yellow dwarfs are indeed much smaller and dimmer than other stars of those colors. However, for hotter blue and white stars, the difference in size and brightness between so-called "dwarf" stars that are on the main sequence and so-called "giant" stars that are not, becomes smaller. For the hottest stars the difference is not directly observable and for these stars the terms "dwarf" and "giant" refer to differences in spectral lines which indicate whether a star is on or off the main sequence. Nevertheless, very hot main-sequence stars are still sometimes called dwarfs, even though they have roughly the same size and brightness as the "giant" stars of that temperature. The common use of "dwarf" to mean main sequence is confusing in another way, because there are dwarf stars which are not main-sequence stars. For example, a white dwarf is the dead core left over after a star has shed its outer layers, and is much smaller than a main-sequence star, roughly the size of Earth. These represent the final evolutionary stage of many main-sequence stars. Parameters By treating the star as an idealized energy radiator known as a black body, the luminosity L and radius R can be related to the effective temperature Teff by the Stefan–Boltzmann law: where σ is the Stefan–Boltzmann constant. As the position of a star on the HR diagram shows its approximate luminosity, this relation can be used to estimate its radius. The mass, radius and luminosity of a star are closely interlinked, and their respective values can be approximated by three relations. First is the Stefan–Boltzmann law, which relates the luminosity L, the radius R and the surface temperature Teff. Second is the mass–luminosity relation, which relates the luminosity L and the mass M. Finally, the relationship between M and R is close to linear. The ratio of M to R increases by a factor of only three over 2.5 orders of magnitude of M. This relation is roughly proportional to the star's inner temperature TI, and its extremely slow increase reflects the fact that the rate of energy generation in the core strongly depends on this temperature, whereas it has to fit the mass–luminosity relation. Thus, a too high or too low temperature will result in stellar instability. A better approximation is to take ε = L/M, the energy generation rate per unit mass, as ε is proportional to TI15, where TI is the core temperature. This is suitable for stars at least as massive as the Sun, exhibiting the CNO cycle, and gives the better fit R ∝ M0.78. Sample parameters The table below shows typical values for stars along the main sequence. The values of luminosity (L), radius (R) and mass (M) are relative to the Sun—a dwarf star with a spectral classification of G2 V. The actual values for a star may vary by as much as 20–30% from the values listed below. Energy generation All main-sequence stars have a core region where energy is generated by nuclear fusion. The temperature and density of this core are at the levels necessary to sustain the energy production that will support the remainder of the star. A reduction of energy production would cause the overlaying mass to compress the core, resulting in an increase in the fusion rate because of higher temperature and pressure. Likewise an increase in energy production would cause the star to expand, lowering the pressure at the core. Thus the star forms a self-regulating system in hydrostatic equilibrium that is stable over the course of its main-sequence lifetime. Main-sequence stars employ two types of hydrogen fusion processes, and the rate of energy generation from each type depends on the temperature in the core region. Astronomers divide the main sequence into upper and lower parts, based on which of the two is the dominant fusion process. In the lower main sequence, energy is primarily generated as the result of the proton–proton chain, which directly fuses hydrogen together in a series of stages to produce helium. Stars in the upper main sequence have sufficiently high core temperatures to efficiently use the CNO cycle (see chart). This process uses atoms of carbon, nitrogen, and oxygen as intermediaries in the process of fusing hydrogen into helium. At a stellar core temperature of 18 million Kelvin, the PP process and CNO cycle are equally efficient, and each type generates half of the star's net luminosity. As this is the core temperature of a star with about 1.5 , the upper main sequence consists of stars above this mass. Thus, roughly speaking, stars of spectral class F or cooler belong to the lower main sequence, while A-type stars or hotter are upper main-sequence stars. The transition in primary energy production from one form to the other spans a range difference of less than a single solar mass. In the Sun, a one solar-mass star, only 1.5% of the energy is generated by the CNO cycle. By contrast, stars with 1.8 or above generate almost their entire energy output through the CNO cycle. The observed upper limit for a main-sequence star is 120–200 . The theoretical explanation for this limit is that stars above this mass can not radiate energy fast enough to remain stable, so any additional mass will be ejected in a series of pulsations until the star reaches a stable limit. The lower limit for sustained proton–proton nuclear fusion is about 0.08 or 80 times the mass of Jupiter. Below this threshold are sub-stellar objects that can not sustain hydrogen fusion, known as brown dwarfs. Structure Because there is a temperature difference between the core and the surface, or photosphere, energy is transported outward. The two modes for transporting this energy are radiation and convection. A radiation zone, where energy is transported by radiation, is stable against convection and there is very little mixing of the plasma. By contrast, in a convection zone the energy is transported by bulk movement of plasma, with hotter material rising and cooler material descending. Convection is a more efficient mode for carrying energy than radiation, but it will only occur under conditions that create a steep temperature gradient. In massive stars (above 10 ) the rate of energy generation by the CNO cycle is very sensitive to temperature, so the fusion is highly concentrated at the core. Consequently, there is a high temperature gradient in the core region, which results in a convection zone for more efficient energy transport. This mixing of material around the core removes the helium ash from the hydrogen-burning region, allowing more of the hydrogen in the star to be consumed during the main-sequence lifetime. The outer regions of a massive star transport energy by radiation, with little or no convection. Intermediate-mass stars such as Sirius may transport energy primarily by radiation, with a small core convection region. Medium-sized, low-mass stars like the Sun have a core region that is stable against convection, with a convection zone near the surface that mixes the outer layers. This results in a steady buildup of a helium-rich core, surrounded by a hydrogen-rich outer region. By contrast, cool, very low-mass stars (below 0.4 ) are convective throughout. Thus the helium produced at the core is distributed across the star, producing a relatively uniform atmosphere and a proportionately longer main-sequence lifespan. Luminosity-color variation As non-fusing helium ash accumulates in the core of a main-sequence star, the reduction in the abundance of hydrogen per unit mass results in a gradual lowering of the fusion rate within that mass. Since it is the outflow of fusion-supplied energy that supports the higher layers of the star, the core is compressed, producing higher temperatures and pressures. Both factors increase the rate of fusion thus moving the equilibrium towards a smaller, denser, hotter core producing more energy whose increased outflow pushes the higher layers further out. Thus there is a steady increase in the luminosity and radius of the star over time. For example, the luminosity of the early Sun was only about 70% of its current value. As a star ages this luminosity increase changes its position on the HR diagram. This effect results in a broadening of the main sequence band because stars are observed at random stages in their lifetime. That is, the main sequence band develops a thickness on the HR diagram; it is not simply a narrow line. Other factors that broaden the main sequence band on the HR diagram include uncertainty in the distance to stars and the presence of unresolved binary stars that can alter the observed stellar parameters. However, even perfect observation would show a fuzzy main sequence because mass is not the only parameter that affects a star's color and luminosity. Variations in chemical composition caused by the initial abundances, the star's evolutionary status, interaction with a close companion, rapid rotation, or a magnetic field can all slightly change a main-sequence star's HR diagram position, to name just a few factors. As an example, there are metal-poor stars (with a very low abundance of elements with higher atomic numbers than helium) that lie just below the main sequence and are known as subdwarfs. These stars are fusing hydrogen in their cores and so they mark the lower edge of main sequence fuzziness caused by variance in chemical composition. A nearly vertical region of the HR diagram, known as the instability strip, is occupied by pulsating variable stars known as Cepheid variables. These stars vary in magnitude at regular intervals, giving them a pulsating appearance. The strip intersects the upper part of the main sequence in the region of class A and F stars, which are between one and two solar masses. Pulsating stars in this part of the instability strip that intersects the upper part of the main sequence are called Delta Scuti variables. Main-sequence stars in this region experience only small changes in magnitude, and so this variation is difficult to detect. Other classes of unstable main-sequence stars, like Beta Cephei variables, are unrelated to this instability strip. Lifetime The total amount of energy that a star can generate through nuclear fusion of hydrogen is limited by the amount of hydrogen fuel that can be consumed at the core. For a star in equilibrium, the thermal energy generated at the core must be at least equal to the energy radiated at the surface. Since the luminosity gives the amount of energy radiated per unit time, the total life span can be estimated, to first approximation, as the total energy produced divided by the star's luminosity. For a star with at least 0.5 , when the hydrogen supply in its core is exhausted and it expands to become a red giant, it can start to fuse helium atoms to form carbon. The energy output of the helium fusion process per unit mass is only about a tenth the energy output of the hydrogen process, and the luminosity of the star increases. This results in a much shorter length of time in this stage compared to the main-sequence lifetime. (For example, the Sun is predicted to spend burning helium, compared to about 12 billion years burning hydrogen.) Thus, about 90% of the observed stars above 0.5 will be on the main sequence. On average, main-sequence stars are known to follow an empirical mass–luminosity relationship. The luminosity (L) of the star is roughly proportional to the total mass (M) as the following power law: This relationship applies to main-sequence stars in the range 0.1–50 . The amount of fuel available for nuclear fusion is proportional to the mass of the star. Thus, the lifetime of a star on the main sequence can be estimated by comparing it to solar evolutionary models. The Sun has been a main-sequence star for about 4.5 billion years and it will become a red giant in 6.5 billion years, for a total main-sequence lifetime of roughly 1010 years. Hence: where M and L are the mass and luminosity of the star, respectively, is a solar mass, is the solar luminosity and is the star's estimated main-sequence lifetime. Although more massive stars have more fuel to burn and might intuitively be expected to last longer, they also radiate a proportionately greater amount with increased mass. This is required by the stellar equation of state; for a massive star to maintain equilibrium, the outward pressure of radiated energy generated in the core not only must but will rise to match the titanic inward gravitational pressure of its envelope. Thus, the most massive stars may remain on the main sequence for only a few million years, while stars with less than a tenth of a solar mass may last for over a trillion years. The exact mass-luminosity relationship depends on how efficiently energy can be transported from the core to the surface. A higher opacity has an insulating effect that retains more energy at the core, so the star does not need to produce as much energy to remain in hydrostatic equilibrium. By contrast, a lower opacity means energy escapes more rapidly and the star must burn more fuel to remain in equilibrium. A sufficiently high opacity can result in energy transport via convection, which changes the conditions needed to remain in equilibrium. In high-mass main-sequence stars, the opacity is dominated by electron scattering, which is nearly constant with increasing temperature. Thus the luminosity only increases as the cube of the star's mass. For stars below 10 , the opacity becomes dependent on temperature, resulting in the luminosity varying approximately as the fourth power of the star's mass. For very low-mass stars, molecules in the atmosphere also contribute to the opacity. Below about 0.5 , the luminosity of the star varies as the mass to the power of 2.3, producing a flattening of the slope on a graph of mass versus luminosity. Even these refinements are only an approximation, however, and the mass-luminosity relation can vary depending on a star's composition. Evolutionary tracks When a main-sequence star has consumed the hydrogen at its core, the loss of energy generation causes its gravitational collapse to resume and the star evolves off the main sequence. The path which the star follows across the HR diagram is called an evolutionary track. Stars with less than are predicted to directly become white dwarfs when energy generation by nuclear fusion of hydrogen at their core comes to a halt, but stars in this mass range have main-sequence lifetimes longer than the current age of the universe, so no stars are old enough for this to have occurred. In stars more massive than , the hydrogen surrounding the helium core reaches sufficient temperature and pressure to undergo fusion, forming a hydrogen-burning shell and causing the outer layers of the star to expand and cool. The stage as these stars move away from the main sequence is known as the subgiant branch; it is relatively brief and appears as a gap in the evolutionary track since few stars are observed at that point. When the helium core of low-mass stars becomes degenerate, or the outer layers of intermediate-mass stars cool sufficiently to become opaque, their hydrogen shells increase in temperature and the stars start to become more luminous. This is known as the red-giant branch; it is a relatively long-lived stage and it appears prominently in H–R diagrams. These stars will eventually end their lives as white dwarfs. The most massive stars do not become red giants; instead, their cores quickly become hot enough to fuse helium and eventually heavier elements and they are known as supergiants. They follow approximately horizontal evolutionary tracks from the main sequence across the top of the H–R diagram. Supergiants are relatively rare and do not show prominently on most H–R diagrams. Their cores will eventually collapse, usually leading to a supernova and leaving behind either a neutron star or black hole. When a cluster of stars is formed at about the same time, the main-sequence lifespan of these stars will depend on their individual masses. The most massive stars will leave the main sequence first, followed in sequence by stars of ever lower masses. The position where stars in the cluster are leaving the main sequence is known as the turnoff point. By knowing the main-sequence lifespan of stars at this point, it becomes possible to estimate the age of the cluster. See also Lists of astronomical objects Notes References Further reading General Kippenhahn, Rudolf, 100 Billion Suns, Basic Books, New York, 1983. Technical Concepts in astronomy Hertzsprung–Russell classifications Star types Stellar evolution

19609

https://en.wikipedia.org/wiki/Memory%20leak

Memory leak

In computer science, a memory leak is a type of resource leak that occurs when a computer program incorrectly manages memory allocations in a way that memory which is no longer needed is not released. A memory leak may also happen when an object is stored in memory but cannot be accessed by the running code. A memory leak has symptoms similar to a number of other problems and generally can only be diagnosed by a programmer with access to the program's source code. A space leak occurs when a computer program uses more memory than necessary. In contrast to memory leaks, where the leaked memory is never released, the memory consumed by a space leak is released, but later than expected. Because they can exhaust available system memory as an application runs, memory leaks are often the cause of or a contributing factor to software aging. Consequences A memory leak reduces the performance of the computer by reducing the amount of available memory. Eventually, in the worst case, too much of the available memory may become allocated and all or part of the system or device stops working correctly, the application fails, or the system slows down vastly due to thrashing. Memory leaks may not be serious or even detectable by normal means. In modern operating systems, normal memory used by an application is released when the application terminates. This means that a memory leak in a program that only runs for a short time may not be noticed and is rarely serious. Much more serious leaks include those: where the program runs for an extended time and consumes additional memory over time, such as background tasks on servers, but especially in embedded devices which may be left running for many years where new memory is allocated frequently for one-time tasks, such as when rendering the frames of a computer game or animated video where the program can request memory—such as shared memory—that is not released, even when the program terminates where memory is very limited, such as in an embedded system or portable device, or where the program requires a very large amount of memory to begin with, leaving little margin for leakage where the leak occurs within the operating system or memory manager when a system device driver causes the leak running on an operating system that does not automatically release memory on program termination. An example of memory leak The following example, written in pseudocode, is intended to show how a memory leak can come about, and its effects, without needing any programming knowledge. The program in this case is part of some very simple software designed to control an elevator. This part of the program is run whenever anyone inside the elevator presses the button for a floor. When a button is pressed: Get some memory, which will be used to remember the floor number Put the floor number into the memory Are we already on the target floor? If so, we have nothing to do: finished Otherwise: Wait until the lift is idle Go to the required floor Release the memory we used to remember the floor number The memory leak would occur if the floor number requested is the same floor that the elevator is on; the condition for releasing the memory would be skipped. Each time this case occurs, more memory is leaked. Cases like this would not usually have any immediate effects. People do not often press the button for the floor they are already on, and in any case, the elevator might have enough spare memory that this could happen hundreds or thousands of times. However, the elevator will eventually run out of memory. This could take months or years, so it might not be discovered despite thorough testing. The consequences would be unpleasant; at the very least, the elevator would stop responding to requests to move to another floor (such as when an attempt is made to call the elevator or when someone is inside and presses the floor buttons). If other parts of the program need memory (a part assigned to open and close the door, for example), then no one would be able to enter, and if someone happens to be inside, they will become trapped (assuming the doors cannot be opened manually). The memory leak lasts until the system is reset. For example: if the elevator's power were turned off or in a power outage, the program would stop running. When power was turned on again, the program would restart and all the memory would be available again, but the slow process of memory leak would restart together with the program, eventually prejudicing the correct running of the system. The leak in the above example can be corrected by bringing the 'release' operation outside of the conditional: When a button is pressed: Get some memory, which will be used to remember the floor number Put the floor number into the memory Are we already on the target floor? If not: Wait until the lift is idle Go to the required floor Release the memory we used to remember the floor number Programming issues Memory leaks are a common error in programming, especially when using languages that have no built in automatic garbage collection, such as C and C++. Typically, a memory leak occurs because dynamically allocated memory has become unreachable. The prevalence of memory leak bugs has led to the development of a number of debugging tools to detect unreachable memory. BoundsChecker, Deleaker, IBM Rational Purify, Valgrind, Parasoft Insure++, Dr. Memory and memwatch are some of the more popular memory debuggers for C and C++ programs. "Conservative" garbage collection capabilities can be added to any programming language that lacks it as a built-in feature, and libraries for doing this are available for C and C++ programs. A conservative collector finds and reclaims most, but not all, unreachable memory. Although the memory manager can recover unreachable memory, it cannot free memory that is still reachable and therefore potentially still useful. Modern memory managers therefore provide techniques for programmers to semantically mark memory with varying levels of usefulness, which correspond to varying levels of reachability. The memory manager does not free an object that is strongly reachable. An object is strongly reachable if it is reachable either directly by a strong reference or indirectly by a chain of strong references. (A strong reference is a reference that, unlike a weak reference, prevents an object from being garbage collected.) To prevent this, the developer is responsible for cleaning up references after use, typically by setting the reference to null once it is no longer needed and, if necessary, by deregistering any event listeners that maintain strong references to the object. In general, automatic memory management is more robust and convenient for developers, as they don't need to implement freeing routines or worry about the sequence in which cleanup is performed or be concerned about whether or not an object is still referenced. It is easier for a programmer to know when a reference is no longer needed than to know when an object is no longer referenced. However, automatic memory management can impose a performance overhead, and it does not eliminate all of the programming errors that cause memory leaks. RAII RAII, short for Resource Acquisition Is Initialization, is an approach to the problem commonly taken in C++, D, and Ada. It involves associating scoped objects with the acquired resources, and automatically releasing the resources once the objects are out of scope. Unlike garbage collection, RAII has the advantage of knowing when objects exist and when they do not. Compare the following C and C++ examples: /* C version */ #include <stdlib.h> void f(int n) { int* array = calloc(n, sizeof(int)); do_some_work(array); free(array); } // C++ version #include <vector> void f(int n) { std::vector<int> array (n); do_some_work(array); } The C version, as implemented in the example, requires explicit deallocation; the array is dynamically allocated (from the heap in most C implementations), and continues to exist until explicitly freed. The C++ version requires no explicit deallocation; it will always occur automatically as soon as the object array goes out of scope, including if an exception is thrown. This avoids some of the overhead of garbage collection schemes. And because object destructors can free resources other than memory, RAII helps to prevent the leaking of input and output resources accessed through a handle, which mark-and-sweep garbage collection does not handle gracefully. These include open files, open windows, user notifications, objects in a graphics drawing library, thread synchronisation primitives such as critical sections, network connections, and connections to the Windows Registry or another database. However, using RAII correctly is not always easy and has its own pitfalls. For instance, if one is not careful, it is possible to create dangling pointers (or references) by returning data by reference, only to have that data be deleted when its containing object goes out of scope. D uses a combination of RAII and garbage collection, employing automatic destruction when it is clear that an object cannot be accessed outside its original scope, and garbage collection otherwise. Reference counting and cyclic references More modern garbage collection schemes are often based on a notion of reachability – if you don't have a usable reference to the memory in question, it can be collected. Other garbage collection schemes can be based on reference counting, where an object is responsible for keeping track of how many references are pointing to it. If the number goes down to zero, the object is expected to release itself and allow its memory to be reclaimed. The flaw with this model is that it doesn't cope with cyclic references, and this is why nowadays most programmers are prepared to accept the burden of the more costly mark and sweep type of systems. The following Visual Basic code illustrates the canonical reference-counting memory leak: Dim A, B Set A = CreateObject("Some.Thing") Set B = CreateObject("Some.Thing") ' At this point, the two objects each have one reference, Set A.member = B Set B.member = A ' Now they each have two references. Set A = Nothing ' You could still get out of it... Set B = Nothing ' And now you've got a memory leak! End In practice, this trivial example would be spotted straight away and fixed. In most real examples, the cycle of references spans more than two objects, and is more difficult to detect. A well-known example of this kind of leak came to prominence with the rise of AJAX programming techniques in web browsers in the lapsed listener problem. JavaScript code which associated a DOM element with an event handler, and failed to remove the reference before exiting, would leak memory (AJAX web pages keep a given DOM alive for a lot longer than traditional web pages, so this leak was much more apparent). Effects If a program has a memory leak and its memory usage is steadily increasing, there will not usually be an immediate symptom. Every physical system has a finite amount of memory, and if the memory leak is not contained (for example, by restarting the leaking program) it will eventually cause problems. Most modern consumer desktop operating systems have both main memory which is physically housed in RAM microchips, and secondary storage such as a hard drive. Memory allocation is dynamic – each process gets as much memory as it requests. Active pages are transferred into main memory for fast access; inactive pages are pushed out to secondary storage to make room, as needed. When a single process starts consuming a large amount of memory, it usually occupies more and more of main memory, pushing other programs out to secondary storage – usually significantly slowing performance of the system. Even if the leaking program is terminated, it may take some time for other programs to swap back into main memory, and for performance to return to normal. When all the memory on a system is exhausted (whether there is virtual memory or only main memory, such as on an embedded system) any attempt to allocate more memory will fail. This usually causes the program attempting to allocate the memory to terminate itself, or to generate a segmentation fault. Some programs are designed to recover from this situation (possibly by falling back on pre-reserved memory). The first program to experience the out-of-memory may or may not be the program that has the memory leak. Some multi-tasking operating systems have special mechanisms to deal with an out-of-memory condition, such as killing processes at random (which may affect "innocent" processes), or killing the largest process in memory (which presumably is the one causing the problem). Some operating systems have a per-process memory limit, to prevent any one program from hogging all of the memory on the system. The disadvantage to this arrangement is that the operating system sometimes must be re-configured to allow proper operation of programs that legitimately require large amounts of memory, such as those dealing with graphics, video, or scientific calculations. If the memory leak is in the kernel, the operating system itself will likely fail. Computers without sophisticated memory management, such as embedded systems, may also completely fail from a persistent memory leak. Publicly accessible systems such as web servers or routers are prone to denial-of-service attacks if an attacker discovers a sequence of operations which can trigger a leak. Such a sequence is known as an exploit. A "sawtooth" pattern of memory utilization may be an indicator of a memory leak within an application, particularly if the vertical drops coincide with reboots or restarts of that application. Care should be taken though because garbage collection points could also cause such a pattern and would show a healthy usage of the heap. Other memory consumers Note that constantly increasing memory usage is not necessarily evidence of a memory leak. Some applications will store ever increasing amounts of information in memory (e.g. as a cache). If the cache can grow so large as to cause problems, this may be a programming or design error, but is not a memory leak as the information remains nominally in use. In other cases, programs may require an unreasonably large amount of memory because the programmer has assumed memory is always sufficient for a particular task; for example, a graphics file processor might start by reading the entire contents of an image file and storing it all into memory, something that is not viable where a very large image exceeds available memory. To put it another way, a memory leak arises from a particular kind of programming error, and without access to the program code, someone seeing symptoms can only guess that there might be a memory leak. It would be better to use terms such as "constantly increasing memory use" where no such inside knowledge exists. A simple example in C++ The following C++ program deliberately leaks memory by losing the pointer to the allocated memory. int main() { int* a = new int(5); a = nullptr; /* The pointer in the 'a' no longer exists, and therefore cannot be freed, but the memory is still allocated by the system. If the program continues to create such pointers without freeing them, it will consume memory continuously. Therefore, a leak would occur. */ } See also Buffer overflow Memory management Memory debugger Plumbr is a popular memory leak detection tool for applications running on Java Virtual Machine nmon (short for Nigel's Monitor) is a popular system monitor tool for the AIX and Linux operating systems. References External links Visual Leak Detector for Visual Studio, open source Valgrind, open source Deleaker for Visual Studio, proprietary Detecting a Memory Leak (Using MFC Debugging Support) Article "Memory Leak Detection in Embedded Systems" by Cal Erickson WonderLeak, a high performance Windows heap and handle allocation profiler, proprietary Software bugs Articles with example pseudocode Software anomalies

19614

https://en.wikipedia.org/wiki/Molecular%20orbital

Molecular orbital

In chemistry, a molecular orbital is a mathematical function describing the location and wave-like behavior of an electron in a molecule. This function can be used to calculate chemical and physical properties such as the probability of finding an electron in any specific region. The terms atomic orbital and molecular orbital were introduced by Robert S. Mulliken in 1932 to mean one-electron orbital wave functions. At an elementary level, they are used to describe the region of space in which a function has a significant amplitude. In an isolated atom, the orbital electrons' location is determined by functions called atomic orbitals. When multiple atoms combine chemically into a molecule, the electrons' locations are determined by the molecule as a whole, so the atomic orbitals combine to form molecular orbitals. The electrons from the constituent atoms occupy the molecular orbitals. Mathematically, molecular orbitals are an approximate solution to the Schrödinger equation for the electrons in the field of the molecule's atomic nuclei. They are usually constructed by combining atomic orbitals or hybrid orbitals from each atom of the molecule, or other molecular orbitals from groups of atoms. They can be quantitatively calculated using the Hartree–Fock or self-consistent field (SCF) methods. Molecular orbitals are of three types: bonding orbitals which have an energy lower than the energy of the atomic orbitals which formed them, and thus promote the chemical bonds which hold the molecule together; antibonding orbitals which have an energy higher than the energy of their constituent atomic orbitals, and so oppose the bonding of the molecule, and non-bonding orbitals which have the same energy as their constituent atomic orbitals and thus have no effect on the bonding of the molecule. Overview A molecular orbital (MO) can be used to represent the regions in a molecule where an electron occupying that orbital is likely to be found. Molecular orbitals are approximate solutions to the Schrödinger equation for the electrons in the electric field of the molecule's atomic nuclei. However calculating the orbitals directly from this equation is far too intractable a problem. Instead they are obtained from the combination of atomic orbitals, which predict the location of an electron in an atom. A molecular orbital can specify the electron configuration of a molecule: the spatial distribution and energy of one (or one pair of) electron(s). Most commonly a MO is represented as a linear combination of atomic orbitals (the LCAO-MO method), especially in qualitative or very approximate usage. They are invaluable in providing a simple model of bonding in molecules, understood through molecular orbital theory. Most present-day methods in computational chemistry begin by calculating the MOs of the system. A molecular orbital describes the behavior of one electron in the electric field generated by the nuclei and some average distribution of the other electrons. In the case of two electrons occupying the same orbital, the Pauli principle demands that they have opposite spin. Necessarily this is an approximation, and highly accurate descriptions of the molecular electronic wave function do not have orbitals (see configuration interaction). Molecular orbitals are, in general, delocalized throughout the entire molecule. Moreover, if the molecule has symmetry elements, its nondegenerate molecular orbitals are either symmetric or antisymmetric with respect to any of these symmetries. In other words, application of a symmetry operation S (e.g., a reflection, rotation, or inversion) to molecular orbital ψ results in the molecular orbital being unchanged or reversing its mathematical sign: Sψ = ±ψ. In planar molecules, for example, molecular orbitals are either symmetric (sigma) or antisymmetric (pi) with respect to reflection in the molecular plane. If molecules with degenerate orbital energies are also considered, a more general statement that molecular orbitals form bases for the irreducible representations of the molecule's symmetry group holds. The symmetry properties of molecular orbitals means that delocalization is an inherent feature of molecular orbital theory and makes it fundamentally different from (and complementary to) valence bond theory, in which bonds are viewed as localized electron pairs, with allowance for resonance to account for delocalization. In contrast to these symmetry-adapted canonical molecular orbitals, localized molecular orbitals can be formed by applying certain mathematical transformations to the canonical orbitals. The advantage of this approach is that the orbitals will correspond more closely to the "bonds" of a molecule as depicted by a Lewis structure. As a disadvantage, the energy levels of these localized orbitals no longer have physical meaning. (The discussion in the rest of this article will focus on canonical molecular orbitals. For further discussions on localized molecular orbitals, see: natural bond orbital and sigma-pi and equivalent-orbital models.) Formation of molecular orbitals Molecular orbitals arise from allowed interactions between atomic orbitals, which are allowed if the symmetries (determined from group theory) of the atomic orbitals are compatible with each other. Efficiency of atomic orbital interactions is determined from the overlap (a measure of how well two orbitals constructively interact with one another) between two atomic orbitals, which is significant if the atomic orbitals are close in energy. Finally, the number of molecular orbitals formed must be equal to the number of atomic orbitals in the atoms being combined to form the molecule. Qualitative discussion For an imprecise, but qualitatively useful, discussion of the molecular structure, the molecular orbitals can be obtained from the "Linear combination of atomic orbitals molecular orbital method" ansatz. Here, the molecular orbitals are expressed as linear combinations of atomic orbitals. Linear combinations of atomic orbitals (LCAO) Molecular orbitals were first introduced by Friedrich Hund and Robert S. Mulliken in 1927 and 1928. The linear combination of atomic orbitals or "LCAO" approximation for molecular orbitals was introduced in 1929 by Sir John Lennard-Jones. His ground-breaking paper showed how to derive the electronic structure of the fluorine and oxygen molecules from quantum principles. This qualitative approach to molecular orbital theory is part of the start of modern quantum chemistry. Linear combinations of atomic orbitals (LCAO) can be used to estimate the molecular orbitals that are formed upon bonding between the molecule's constituent atoms. Similar to an atomic orbital, a Schrödinger equation, which describes the behavior of an electron, can be constructed for a molecular orbital as well. Linear combinations of atomic orbitals, or the sums and differences of the atomic wavefunctions, provide approximate solutions to the Hartree–Fock equations which correspond to the independent-particle approximation of the molecular Schrödinger equation. For simple diatomic molecules, the wavefunctions obtained are represented mathematically by the equations where and are the molecular wavefunctions for the bonding and antibonding molecular orbitals, respectively, and are the atomic wavefunctions from atoms a and b, respectively, and and are adjustable coefficients. These coefficients can be positive or negative, depending on the energies and symmetries of the individual atomic orbitals. As the two atoms become closer together, their atomic orbitals overlap to produce areas of high electron density, and, as a consequence, molecular orbitals are formed between the two atoms. The atoms are held together by the electrostatic attraction between the positively charged nuclei and the negatively charged electrons occupying bonding molecular orbitals. Bonding, antibonding, and nonbonding MOs When atomic orbitals interact, the resulting molecular orbital can be of three types: bonding, antibonding, or nonbonding. Bonding MOs: Bonding interactions between atomic orbitals are constructive (in-phase) interactions. Bonding MOs are lower in energy than the atomic orbitals that combine to produce them. Antibonding MOs: Antibonding interactions between atomic orbitals are destructive (out-of-phase) interactions, with a nodal plane where the wavefunction of the antibonding orbital is zero between the two interacting atoms Antibonding MOs are higher in energy than the atomic orbitals that combine to produce them. Nonbonding MOs: Nonbonding MOs are the result of no interaction between atomic orbitals because of lack of compatible symmetries. Nonbonding MOs will have the same energy as the atomic orbitals of one of the atoms in the molecule. Sigma and pi labels for MOs The type of interaction between atomic orbitals can be further categorized by the molecular-orbital symmetry labels σ (sigma), π (pi), δ (delta), φ (phi), γ (gamma) etc. These are the Greek letters corresponding to the atomic orbitals s, p, d, f and g respectively. The number of nodal planes containing the internuclear axis between the atoms concerned is zero for σ MOs, one for π, two for δ, three for φ and four for γ. σ symmetry A MO with σ symmetry results from the interaction of either two atomic s-orbitals or two atomic pz-orbitals. An MO will have σ-symmetry if the orbital is symmetric with respect to the axis joining the two nuclear centers, the internuclear axis. This means that rotation of the MO about the internuclear axis does not result in a phase change. A σ* orbital, sigma antibonding orbital, also maintains the same phase when rotated about the internuclear axis. The σ* orbital has a nodal plane that is between the nuclei and perpendicular to the internuclear axis. π symmetry A MO with π symmetry results from the interaction of either two atomic px orbitals or py orbitals. An MO will have π symmetry if the orbital is asymmetric with respect to rotation about the internuclear axis. This means that rotation of the MO about the internuclear axis will result in a phase change. There is one nodal plane containing the internuclear axis, if real orbitals are considered. A π* orbital, pi antibonding orbital, will also produce a phase change when rotated about the internuclear axis. The π* orbital also has a second nodal plane between the nuclei. δ symmetry A MO with δ symmetry results from the interaction of two atomic dxy or dx2-y2 orbitals. Because these molecular orbitals involve low-energy d atomic orbitals, they are seen in transition-metal complexes. A δ bonding orbital has two nodal planes containing the internuclear axis, and a δ* antibonding orbital also has a third nodal plane between the nuclei. φ symmetry Theoretical chemists have conjectured that higher-order bonds, such as phi bonds corresponding to overlap of f atomic orbitals, are possible. There is no known example of a molecule purported to contain a phi bond. Gerade and ungerade symmetry For molecules that possess a center of inversion (centrosymmetric molecules) there are additional labels of symmetry that can be applied to molecular orbitals. Centrosymmetric molecules include: Homonuclear diatomics, X2 Octahedral, EX6 Square planar, EX4. Non-centrosymmetric molecules include: Heteronuclear diatomics, XY Tetrahedral, EX4. If inversion through the center of symmetry in a molecule results in the same phases for the molecular orbital, then the MO is said to have gerade (g) symmetry, from the German word for even. If inversion through the center of symmetry in a molecule results in a phase change for the molecular orbital, then the MO is said to have ungerade (u) symmetry, from the German word for odd. For a bonding MO with σ-symmetry, the orbital is σg (s' + s'' is symmetric), while an antibonding MO with σ-symmetry the orbital is σu, because inversion of s' – s'' is antisymmetric. For a bonding MO with π-symmetry the orbital is πu because inversion through the center of symmetry for would produce a sign change (the two p atomic orbitals are in phase with each other but the two lobes have opposite signs), while an antibonding MO with π-symmetry is πg because inversion through the center of symmetry for would not produce a sign change (the two p orbitals are antisymmetric by phase). MO diagrams The qualitative approach of MO analysis uses a molecular orbital diagram to visualize bonding interactions in a molecule. In this type of diagram, the molecular orbitals are represented by horizontal lines; the higher a line the higher the energy of the orbital, and degenerate orbitals are placed on the same level with a space between them. Then, the electrons to be placed in the molecular orbitals are slotted in one by one, keeping in mind the Pauli exclusion principle and Hund's rule of maximum multiplicity (only 2 electrons, having opposite spins, per orbital; place as many unpaired electrons on one energy level as possible before starting to pair them). For more complicated molecules, the wave mechanics approach loses utility in a qualitative understanding of bonding (although is still necessary for a quantitative approach). Some properties: A basis set of orbitals includes those atomic orbitals that are available for molecular orbital interactions, which may be bonding or antibonding The number of molecular orbitals is equal to the number of atomic orbitals included in the linear expansion or the basis set If the molecule has some symmetry, the degenerate atomic orbitals (with the same atomic energy) are grouped in linear combinations (called symmetry-adapted atomic orbitals (SO)), which belong to the representation of the symmetry group, so the wave functions that describe the group are known as symmetry-adapted linear combinations (SALC). The number of molecular orbitals belonging to one group representation is equal to the number of symmetry-adapted atomic orbitals belonging to this representation Within a particular representation, the symmetry-adapted atomic orbitals mix more if their atomic energy levels are closer. The general procedure for constructing a molecular orbital diagram for a reasonably simple molecule can be summarized as follows: 1. Assign a point group to the molecule. 2. Look up the shapes of the SALCs. 3. Arrange the SALCs of each molecular fragment in increasing order of energy, first noting whether they stem from s, p, or d orbitals (and put them in the order s < p < d), and then their number of internuclear nodes. 4. Combine SALCs of the same symmetry type from the two fragments, and from N SALCs form N molecular orbitals. 5. Estimate the relative energies of the molecular orbitals from considerations of overlap and relative energies of the parent orbitals, and draw the levels on a molecular orbital energy level diagram (showing the origin of the orbitals). 6. Confirm, correct, and revise this qualitative order by carrying out a molecular orbital calculation by using commercial software. Bonding in molecular orbitals Orbital degeneracy Molecular orbitals are said to be degenerate if they have the same energy. For example, in the homonuclear diatomic molecules of the first ten elements, the molecular orbitals derived from the px and the py atomic orbitals result in two degenerate bonding orbitals (of low energy) and two degenerate antibonding orbitals (of high energy). Ionic bonds When the energy difference between the atomic orbitals of two atoms is quite large, one atom's orbitals contribute almost entirely to the bonding orbitals, and the other atom's orbitals contribute almost entirely to the antibonding orbitals. Thus, the situation is effectively that one or more electrons have been transferred from one atom to the other. This is called an (mostly) ionic bond. Bond order The bond order, or number of bonds, of a molecule can be determined by combining the number of electrons in bonding and antibonding molecular orbitals. A pair of electrons in a bonding orbital creates a bond, whereas a pair of electrons in an antibonding orbital negates a bond. For example, N2, with eight electrons in bonding orbitals and two electrons in antibonding orbitals, has a bond order of three, which constitutes a triple bond. Bond strength is proportional to bond order—a greater amount of bonding produces a more stable bond—and bond length is inversely proportional to it—a stronger bond is shorter. There are rare exceptions to the requirement of molecule having a positive bond order. Although Be2 has a bond order of 0 according to MO analysis, there is experimental evidence of a highly unstable Be2 molecule having a bond length of 245 pm and bond energy of 10 kJ/mol. HOMO and LUMO The highest occupied molecular orbital and lowest unoccupied molecular orbital are often referred to as the HOMO and LUMO, respectively. The difference of the energies of the HOMO and LUMO is called the HOMO-LUMO gap. This notion is often the matter of confusion in literature and should be considered with caution. Its value is usually located between the fundamental gap (difference between ionization potential and electron affinity) and the optical gap. In addition, HOMO-LUMO gap can be related to a bulk material band gap or transport gap, which is usually much smaller than fundamental gap. Examples Homonuclear diatomics Homonuclear diatomic MOs contain equal contributions from each atomic orbital in the basis set. This is shown in the homonuclear diatomic MO diagrams for H2, He2, and Li2, all of which containing symmetric orbitals. H2 As a simple MO example, consider the electrons in a hydrogen molecule, H2 (see molecular orbital diagram), with the two atoms labelled H' and H". The lowest-energy atomic orbitals, 1s' and 1s", do not transform according to the symmetries of the molecule. However, the following symmetry adapted atomic orbitals do: The symmetric combination (called a bonding orbital) is lower in energy than the basis orbitals, and the antisymmetric combination (called an antibonding orbital) is higher. Because the H2 molecule has two electrons, they can both go in the bonding orbital, making the system lower in energy (hence more stable) than two free hydrogen atoms. This is called a covalent bond. The bond order is equal to the number of bonding electrons minus the number of antibonding electrons, divided by 2. In this example, there are 2 electrons in the bonding orbital and none in the antibonding orbital; the bond order is 1, and there is a single bond between the two hydrogen atoms. He2 On the other hand, consider the hypothetical molecule of He2 with the atoms labeled He' and He". As with H2, the lowest energy atomic orbitals are the 1s' and 1s", and do not transform according to the symmetries of the molecule, while the symmetry adapted atomic orbitals do. The symmetric combination—the bonding orbital—is lower in energy than the basis orbitals, and the antisymmetric combination—the antibonding orbital—is higher. Unlike H2, with two valence electrons, He2 has four in its neutral ground state. Two electrons fill the lower-energy bonding orbital, σg(1s), while the remaining two fill the higher-energy antibonding orbital, σu*(1s). Thus, the resulting electron density around the molecule does not support the formation of a bond between the two atoms; without a stable bond holding the atoms together, the molecule would not be expected to exist. Another way of looking at it is that there are two bonding electrons and two antibonding electrons; therefore, the bond order is 0 and no bond exists (the molecule has one bound state supported by the Van der Waals potential). Li2 Dilithium Li2 is formed from the overlap of the 1s and 2s atomic orbitals (the basis set) of two Li atoms. Each Li atom contributes three electrons for bonding interactions, and the six electrons fill the three MOs of lowest energy, σg(1s), σu*(1s), and σg(2s). Using the equation for bond order, it is found that dilithium has a bond order of one, a single bond. Noble gases Considering a hypothetical molecule of He2, since the basis set of atomic orbitals is the same as in the case of H2, we find that both the bonding and antibonding orbitals are filled, so there is no energy advantage to the pair. HeH would have a slight energy advantage, but not as much as H2 + 2 He, so the molecule is very unstable and exists only briefly before decomposing into hydrogen and helium. In general, we find that atoms such as He that have full energy shells rarely bond with other atoms. Except for short-lived Van der Waals complexes, there are very few noble gas compounds known. Heteronuclear diatomics While MOs for homonuclear diatomic molecules contain equal contributions from each interacting atomic orbital, MOs for heteronuclear diatomics contain different atomic orbital contributions. Orbital interactions to produce bonding or antibonding orbitals in heteronuclear diatomics occur if there is sufficient overlap between atomic orbitals as determined by their symmetries and similarity in orbital energies. HF In hydrogen fluoride HF overlap between the H 1s and F 2s orbitals is allowed by symmetry but the difference in energy between the two atomic orbitals prevents them from interacting to create a molecular orbital. Overlap between the H 1s and F 2pz orbitals is also symmetry allowed, and these two atomic orbitals have a small energy separation. Thus, they interact, leading to creation of σ and σ* MOs and a molecule with a bond order of 1. Since HF is a non-centrosymmetric molecule, the symmetry labels g and u do not apply to its molecular orbitals. Quantitative approach To obtain quantitative values for the molecular energy levels, one needs to have molecular orbitals that are such that the configuration interaction (CI) expansion converges fast towards the full CI limit. The most common method to obtain such functions is the Hartree–Fock method, which expresses the molecular orbitals as eigenfunctions of the Fock operator. One usually solves this problem by expanding the molecular orbitals as linear combinations of Gaussian functions centered on the atomic nuclei (see linear combination of atomic orbitals and basis set (chemistry)). The equation for the coefficients of these linear combinations is a generalized eigenvalue equation known as the Roothaan equations, which are in fact a particular representation of the Hartree–Fock equation. There are a number of programs in which quantum chemical calculations of MOs can be performed, including Spartan. Simple accounts often suggest that experimental molecular orbital energies can be obtained by the methods of ultra-violet photoelectron spectroscopy for valence orbitals and X-ray photoelectron spectroscopy for core orbitals. This, however, is incorrect as these experiments measure the ionization energy, the difference in energy between the molecule and one of the ions resulting from the removal of one electron. Ionization energies are linked approximately to orbital energies by Koopmans' theorem. While the agreement between these two values can be close for some molecules, it can be very poor in other cases. Notes References Molecular physics Quantum chemistry Theoretical chemistry Computational chemistry Chemical bonding

19615

https://en.wikipedia.org/wiki/Systems%20Concepts

Systems Concepts

Systems Concepts (now the SC Group) is a company co-founded by Stewart Nelson and Mike Levitt focused on making hardware products related to the DEC PDP-10 series of computers. One of its major products was the SA-10, an interface which allowed PDP-10s to be connected to disk and tape drives designed for use with the channel interfaces of IBM mainframes. Later, Systems Concepts attempted to produce a compatible replacement for the DEC PDP-10 computers. "Mars" was the code name for a family of PDP-10-compatible computers built by Systems Concepts, including the initial SC-30M, the smaller SC-25, and the slower SC-20. These machines were marvels of engineering design; although not much slower than the unique Foonly F-1, they were physically smaller and consumed less power than the much slower DEC KS10 or Foonly F-2, F-3, or F-4 machines. They were also completely compatible with the DEC KL10, and ran all KL10 binaries (including the operating system) with no modifications at about 2-3 times faster than a KL10. When DEC cancelled the Jupiter project in 1983, Systems Concepts hoped to sell their machine to customers with a software investment in PDP-10s. Their spring 1984 announcement generated excitement in the PDP-10 world. TOPS-10 was running on the Mars by the summer of 1984, and TOPS-20 by early fall. However, people at Systems Concepts were better at designing machines than at mass-producing or selling them; the company continually improved the design, but lost credibility as delivery dates continued to slip. They also overpriced; believing they were competing with the KL10 and VAX 8600 and not startups such as Sun Microsystems building workstations with comparable power at a fraction of the price. By the time SC shipped the first SC-30M to Stanford University in late 1985, most customers had already abandoned the PDP-10, usually for VMS or Unix systems. Nevertheless, a number were purchased by CompuServe, which depended on PDP-10s to run its online service and was eager to move to newer but fully compatible systems. CompuServe's demand for the computers outpaced Systems Concepts' ability to produce them, so CompuServe licensed the design and built SC-designed computers itself. Other companies that purchased the SC-30 machines included Telmar, Reynolds and Reynolds, The Danish National Railway. Peter Samson was director of marketing and program development. SC later designed the SC-40, released in 1993, a faster follow-on to the SC-30M and SC-25. It can perform up to 8 times as fast as a DEC KL-10, and it also supports more physical memory, a larger virtual address space, and more modern input/output devices. These systems were also used at CompuServe. In 1985, the company contracted to engineer and produce a PC-based cellular automata system for Tommaso Toffoli of MIT, called the CAM-6. The CAM-6 was a 2-card "sandwich" that plugged into an IBM PC slot and ran cellular automata rules at a 60 Hz update rate. Toffoli provided Forth-based software to operate the card. The production problems that plagued the company's computer products were demonstrated here as well, and only a few boards were produced. Systems Concepts remains in business, having changed its name to the SC Group when it moved from California to Nevada. References External links Companies based in Massachusetts Computer companies of the United States

19616

https://en.wikipedia.org/wiki/Messiah

Messiah

In Abrahamic religions, a messiah or messias (; , ; , ; ) is a saviour or liberator of a group of people. The concepts of mashiach, messianism, and of a Messianic Age originated in Judaism, and in the Hebrew Bible, in which a mashiach is a king or High Priest traditionally anointed with holy anointing oil. Ha mashiach (), often referred to as (), is to be a Jewish leader, physically descended from the paternal Davidic line through King David and King Solomon. He is thought to accomplish predetermined things in a future arrival, including the unification of the tribes of Israel, the gathering of all Jews to Eretz Israel, the rebuilding of the Temple in Jerusalem, the ushering in of a Messianic Age of global universal peace, and the annunciation of the world to come. Messiahs were not exclusively Jewish, however, and the concept of 'the' Messiah as a single individual is a strictly post-Biblical tradition as it is not found in the Old Testament. The Greek translation of Messiah is Khristós (), anglicized as Christ. Christians commonly refer to Jesus of Nazareth as either the "Christ" or the "Messiah", believing that the messianic prophecies were fulfilled in the mission, death, and resurrection of Jesus and that he will return to fulfill the rest of messianic prophecies. Moreover, unlike the Judaic concept of the Messiah, Jesus Christ is additionally considered by Christians to be the Son of God. In Islam, Jesus () is held to have been a prophet and the Messiah sent to the Israelites, who will return to Earth at the end of times along with the Mahdi, and defeat al-Masih ad-Dajjal, the false Messiah. In Ahmadiyya theology, these prophecies concerning the Mahdi and the second coming of Jesus are believed to have been fulfilled in Mirza Ghulam Ahmad (1835–1908), the founder of the Ahmadiyya Movement, wherein the terms Messiah and Mahdi are synonyms for one and the same person. In Chabad messianism, Yosef Yitzchak Schneersohn (r. 1920–1950), sixth Rebbe (spiritual leader) of Chabad Lubavitch, and Menachem Mendel Schneerson (1902–1994), seventh Rebbe of Chabad, are Messiah claimants. Etymology Messiah (Hebrew: , or , mashiach; ; , ; ) literally means 'anointed one'. In Hebrew, the Messiah is often referred to as (; Tiberian: , ), literally meaning 'the Anointed King'. The Greek Septuagint version of the Old Testament renders all 39 instances of the Hebrew mašíaḥ as Khristós (). The New Testament records the Greek transliteration Messias () twice in John. (, , lit. 'the anointed', 'the traveller', or 'one who cures by caressing') is the Arabic word for messiah used by both Arab Christians and Muslims. In modern Arabic, it is used as one of the many titles of Jesus, referred to as () by Arab Christians and () by Muslims. Judaism The literal translation of the Hebrew word mashiach (, messiah), is 'anointed', which refers to a ritual of consecrating someone or something by putting holy oil upon it. It is used throughout the Hebrew Bible in reference to a wide variety of individuals and objects; for example, kings, priests and prophets, the altar in the Temple, vessels, unleavened bread, and even a non-Jewish king (Cyrus the Great). In Jewish eschatology, the term came to refer to a future Jewish king from the Davidic line, who will be "anointed" with holy anointing oil, to be king of God's kingdom, and rule the Jewish people during the Messianic Age. In Judaism, the Messiah is not considered to be God or a pre-existent divine Son of God. He is considered to be a great political leader that has descended from King David, hence why he is referred to as Messiah ben David, 'Messiah, son of David'. In Judaism, the messiah is considered to be a great, charismatic leader that is well oriented with the laws that are followed in Judaism. He will be the one who will not "judge by what his eyes see" or "decide by what his ears hear." Belief in the eventual coming of a future messiah is a fundamental part of Judaism, and is one of Maimonides' 13 Principles of Faith. Maimonides describes the identity of the Messiah in the following terms: Even though the eventual coming of the messiah is a strongly upheld belief in Judaism, trying to predict the actual time when the messiah will come is an act that is frowned upon. These kinds of actions are thought to weaken the faith the people have in the religion. So in Judaism, there is no specific time when the messiah comes. Rather, it is the acts of the people that determines when the messiah comes. It is said that the messiah would come either when the world needs his coming the most (when the world is so sinful and in desperate need of saving by the messiah) or deserves it the most (when genuine goodness prevails in the world). A common modern rabbinic interpretation is that there is a potential messiah in every generation. The Talmud, which often uses stories to make a moral point (aggadah), tells of a highly respected rabbi who found the Messiah at the gates of Rome and asked him, "When will you finally come?" He was quite surprised when he was told, "Today." Overjoyed and full of anticipation, the man waited all day. The next day he returned, disappointed and puzzled, and asked, "You said messiah would come 'today' but he didn't come! What happened?" The Messiah replied, "Scripture says, 'Today, if you will but hearken to his voice.'" A Kabbalistic tradition within Judaism is that the commonly discussed messiah who will usher in a period of freedom and peace, Messiah ben David, will be preceded by Messiah ben Joseph, who will gather the children of Israel around him, lead them to Jerusalem. After overcoming the hostile powers in Jerusalem, Messiah ben Joseph, will reestablish the Temple-worship and set up his own dominion. Then Armilus, according to one group of sources, or Gog and Magog, according to the other, will appear with their hosts before Jerusalem, wage war against Messiah ben Joseph, and slay him. His corpse, according to one group, will lie unburied in the streets of Jerusalem; according to the other, it will be hidden by the angels with the bodies of the Patriarchs, until Messiah ben David comes and brings him back to life. Chabad Yosef Yitzchak Schneersohn (r. 1920–1950), sixth Rebbe (spiritual leader) of Chabad Lubavitch, and Menachem Mendel Schneerson (1902–1994), seventh Rebbe of Chabad, are messiah claimants. As per Chabad-Lubavitch messianism, Menachem Mendel Schneerson openly declared his deceased father-in-law, the former 6th Rebbe of Chabad Lubavitch, to be the Messiah. He published about Yosef Yitzchak Schneersohn to be "Atzmus u'mehus alein vi er hat zich areingeshtalt in a guf" (Yiddish and English for: "Essence and Existence [of God] which has placed itself in a body"). The gravesite of his deceased father-in-law Yosef Yitzchak Schneersohn, known as "the Ohel", became a central point of focus for Menachem Mendel Schneerson's prayers and supplications. Regarding the deceased Menachem Mendel Schneerson, a later Chabad Halachic ruling claims that it was "incumbent on every single Jew to heed the Rebbe's words and believe that he is indeed King Moshiach, who will be revealed imminently". Outside of Chabad messianism, in Judaism, there is no basis to these claims. If anything, this resembles the faith in the resurrection of Jesus and his second coming in early Christianity. Still today, the deceased rabbi Menachem Mendel Schneerson is believed to be the Messiah among adherents of the Chabad movement, and his second coming is believed to be imminent. He is venerated and invocated to by thousands of visitors and letters each year at the (Ohel), especially in a pilgrimage each year on the anniversary of his death. Christianity Originating from the concept in Judaism, the Messiah in Christianity is called the Christ—from Greek khristós (), translating the Hebrew word of the same meaning. 'Christ' became the accepted Christian designation and title of Jesus of Nazareth, as Christians believe that the messianic prophecies in the Old Testament—that he is descended from the Davidic line, and was declared King of the Jews—were fulfilled in his mission, death, and resurrection, while the rest of the prophecies—that he will usher in a Messianic Age and the world to come—will be fulfilled at his Second Coming. Some Christian denominations, such as Catholicism, instead believe in amillenialist theology, but the Catholic Church has not adopted this term. The majority of historical and mainline Christian theologies consider Jesus to be the Son of God and God the Son, a concept of the messiah fundamentally different from the Jewish and Islamic concepts. In each of the four New Testament Gospels, the only literal anointing of Jesus is conducted by a woman. In the Gospels of Mark, Matthew, and John, this anointing occurs in Bethany, outside Jerusalem. In the Gospel of Luke, the anointing scene takes place at an indeterminate location, but the context suggests it to be in Galilee, or even a separate anointing altogether. Aside from Jesus, the Book of Isaiah refers to Cyrus the Great, king of the Achaemenid Empire, as a messiah for his decree to rebuild the Jerusalem Temple. Islam The Islamic faith uses the Arabic term (, ) to refer to Jesus. However the meaning is different from that found in Christianity and Judaism: Though Islam shares many of the beliefs and characteristics of the two Semitic/Abrahamic/monotheistic religions which preceded it, the idea of messianism, which is of central importance in Judaism and Christianity, is alien to Islam as represented by the Qur'an. The Quran states that Jesus (Isa), the son of Maryam (Isa ibn Maryam), is the messiah (al-masih) and prophet sent to the Children of Israel. According to Qadi al-Nu'man, a famous Muslim jurist of the Fatimid period, the Quran identifies Jesus as the messiah because he was sent to the people who responded to him in order to remove (masaha) their impurities, the ailments of their faith, whether apparent () or hidden (). Jesus is one of the most important prophets in the Islamic tradition, along with Noah, Abraham, Moses, and Muhammad. Unlike Christians, Muslims see Jesus as a prophet, but not as God himself or the son of God. This is because prophecy in human form does not represent the true powers of God, contrary to the popular depiction of Jesus in Christianity. Thus, like all other Islamic prophets, Jesus is one of the grand prophets who receives revelations from God. According to religious scholar Mona Siddiqui, in Islam, "[p]rophecy allows God to remain veiled and there is no suggestion in the Qur'an that God wishes to reveal of himself just yet. Prophets guarantee interpretation of revelation and that God's message will be understood."In Sura 19, the Quran describes the birth of Isa, and sura 4 explicitly states Isa as the Son of Maryam. Sunni Muslims believe Isa is alive in Heaven and did not die in the crucifixion. Sura 4, verses 157–158, also states that: According to religious scholar Mahmoud Ayoub, "Jesus' close proximity or nearness (qurb) to God is affirmed in the Qur'anic insistence that Jesus did not die, but was taken up to God and remains with God." While the Quran does not state that he will come back, Islamic tradition nevertheless believes that Jesus will return at the end of times, shortly preceding Mahdi, and exercise his power of healing. He will forever destroy the falsehood embodied in al-Masih ad-Dajjal (the false Messiah), the great falsifier, a figure similar to the Antichrist in Christianity, who will emerge shortly before Yawm al-Qiyāmah ('the Day of Resurrection'). After he has destroyed ad-Dajjal, his final task will be to become leader of the Muslims. Isa will unify the Muslim Ummah (the followers of Islam) under the common purpose of worshipping Allah alone in pure Islam, thereby ending divisions and deviations by adherents. Mainstream Muslims believe that at that time, Isa will dispel Christian and Jewish claims about him. A hadith in Abu Dawud says: Both Sunni and Shia Muslims agree that al-Mahdi will arrive first, and after him, Isa. Isa will proclaim al-Mahdi as the Islamic community leader. A war will be fought—the Dajjal against al-Mahdi and Isa. This war will mark the approach of the coming of the Last Day. After Isa slays al-Dajjāl at the Gate of Lud, he will bear witness and reveal that Islam is indeed the true and last word from God to humanity as Yusuf Ali's translation reads: A hadith in Sahih Bukhari says: The Quran denies the crucifixion of Jesus, claiming that he was neither killed nor crucified. The Quran also emphasizes the difference between Allah and the Messiah:Those who say that Allah is the Messiah, son of Mary, are unbelievers. The Messiah said: "O Children of Israel, worship Allah, my Lord and your Lord... unbelievers too are those who have said that Allah is the third of three... the Messiah, son of Mary, was only a Messenger before whom other Messengers had gone. Shia Islam The Twelver branch of Shia (or Shi'i) Islam, which significantly values and revolves around the Twelve Imams (spiritual leaders), differs significantly from the beliefs of Sunni Islam. Unlike Sunni Islam, "Messianism is an essential part of religious belief and practice for almost all Shi'a Muslims." Shi'i Islam believes that the last Imam will return again, with the return of Jesus. According to religious scholar Mona Siddiqui, "Shi'is are acutely aware of the existence everywhere of the twelfth Imam, who disappeared in 874." Shi'i piety teaches that the hidden Imam will return with Jesus Christ to set up the messianic kingdom before the final Judgement Day, when all humanity will stand before God. There is some controversy as to the identity of this imam. There are sources that underscore how the Shia sect agrees with the Jews and Christians that Imam Mehdi (al-Mahdi) is another name for Elijah, whose return prior to the arrival of the Messiah was prophesied in the Old Testament. The Imams and Fatima will have a direct impact on the judgements rendered that day, representing the ultimate intercession. There is debate on whether Shi'i Muslims should accept the death of Jesus. Religious scholar Mahmoud Ayoub argues "Modern Shi'i thinkers have allowed the possibility that Jesus died and only his spirit was taken up to heaven." Conversely, Siddiqui argues that Shi'i thinkers believe Jesus was "neither crucified nor slain." She also argues that Shi'i Muslims believe that the twelfth imam did not die, but "was taken to God to return in God's time," and "will return at the end of history to establish the kingdom of God on earth as the expected Mahdi." Ahmadiyya In the theology of Ahmadiyya, the terms Messiah and Mahdi are synonymous terms for one and the same person. The term Mahdi means 'guided [by God]', thus implying a direct ordainment by God of a divinely chosen individual. According to Ahmadi thought, Messiahship is a phenomenon through which a special emphasis is given on the transformation of a people by way of offering to suffer for the sake of God instead of giving suffering (i.e. refraining from revenge). Ahmadis believe that this special emphasis was given through the person of Jesus and Mirza Ghulam Ahmad (1835–1908) among others. Ahmadis hold that the prophesied eschatological figures of Christianity and Islam, the Messiah and Mahdi, were, in fact, to be fulfilled in one person who was to represent all previous prophets. Numerous hadith are presented by the Ahmadis in support of their view, such as one from Sunan Ibn Majah, which says, "There is No Mahdi other than Jesus son of Mary." Ahmadis believe that the prophecies concerning the Mahdi and the second coming of Jesus have been fulfilled in Mirza Ghulam Ahmad (1835–1908), the founder of the Ahmadiyya Movement. Unlike mainstream Muslims, the Ahmadis do not believe that Jesus is alive in heaven, but that he survived the crucifixion and migrated towards the east where he died a natural death and that Ghulam Ahmad was only the promised spiritual second coming and likeness of Jesus, the promised Messiah and Mahdi. He also claimed to have appeared in the likeness of Krishna and that his advent fulfilled certain prophecies found in Hindu scriptures. He stated that the founder of Sikhism was a Muslim saint, who was a reflection of the religious challenges he perceived to be occurring. Ghulam Ahmad wrote Barahin-e-Ahmadiyya, in 1880, which incorporated Indian, Sufi, Islamic and Western aspects in order to give life to Islam in the face of the British Raj, Protestant Christianity, and rising Hinduism. He later declared himself the Promised Messiah and the Mahdi following Divine revelations in 1891. Ghulam Ahmad argued that Jesus had appeared 1300 years after the formation of the Muslim community and stressed the need for a current Messiah, in turn claiming that he himself embodied both the Mahdi and the Messiah. Ghulam Ahmad was supported by Muslims who especially felt oppressed by Christian and Hindu missionaries. Druze faith In the Druze faith, Jesus is considered the Messiah and one of God's important prophets, being among the seven prophets who appeared in different periods of history. According to the Druze manuscripts Jesus is the Greatest Imam and the incarnation of Ultimate Reason (Akl) on earth and the first cosmic principle (Hadd), and regards Jesus and Hamza ibn Ali as the incarnations of one of the five great celestial powers, who form part of their system. Druze doctrines include the beliefs that Jesus was born of a virgin named Mary, performed miracles, and died by crucifixion. Druze believe that Hamza ibn Ali was a reincarnation of Jesus, and that Hamza ibn Ali is the true Messiah, who directed the deeds of the messiah Jesus "the son of Joseph and Mary", but when messiah Jesus "the son of Joseph and Mary" strayed from the path of the true Messiah, Hamza filled the hearts of the Jews with hatred for him - and for that reason, they crucified him, according to the Druze manuscripts. Despite this, Hamza ibn Ali took him down from the cross and allowed him to return to his family, in order to prepare men for the preaching of his religion. Other religions In Buddhism, Maitreya is considered to the next Buddha (awakened one) that is promised to come. He is expected to come to renew the laws of Buddhism once the teaching of Gautama Buddha has completely decayed. Mírzá Ḥusayn-ʻAlí Núrí, founder of the Baháʼí Faith, claimed to be "He whom God will make manifest" of the Babi religion. His title Bahá'u'lláh, when translated literally, means "The Glory of God" in Arabic. According to the Baháʼí Faith, Bahá'u'lláh addressed not only those timeless theological and philosophical questions that have stayed with humanity since old times such as: Who is God? What is goodness? and Why are we here? but also the questions that have preoccupied philosophers of the 20th century: What motivates human nature? Is real peace indeed possible? Does God still care for humanity? and the like. He taught that there is only one God, that all of the world's religions are from God, and that now is the time for humanity to recognize its oneness and unite. Emperor Haile Selassie I of Ethiopia is believed to be the Messiah by followers of the Rastafari movement. This idea further supports the belief that God himself is black, which they (followers of the Rastafarian movement) try to further strengthen by a verse from the Bible. Even if the Emperor denied being the messiah, the followers of the Rastafari movement believe that he is a messenger from God. To justify this, Rastafarians used reasons such as Emperor Haile Selassie's bloodline, which is assumed to come from King Solomon of Israel, and the various titles given to him, which include Lord of Lords, King of Kings and Conquering Lion of the tribe of Judah. In Kebatinan (Javanese religious tradition), Satrio Piningit is a character in Jayabaya's prophecies who is destined to become a great leader of Nusantara and to rule the world from Java. In Serat Pararaton, King Jayabaya of Kediri foretold that before the coming of Satrio Piningit, there would be flash floods and that volcanoes would erupt without warning. Satrio Piningit is a Krishna-like figure known as Ratu Adil (Indonesian: 'Just King, King of Justice') and his weapon is a trishula. In Zoroastrianism there are three messiah figures who each progressively bring about the final renovation of the world, the Frashokereti and all of these three figures are called Saoshyant. In Aradia, or the Gospel of the Witches, the messiah is Aradia, daughter of the goddess Diana, who comes to Earth in order to establish the practice of witchcraft before returning to Heaven. Popular culture Dune Messiah, a 1969 novel by Frank Herbert, second in his Dune trilogy, also part of a miniseries, one of the widest-selling works of fiction in the 1960s. In the Infinity saga of Sailor Moon and the third season of the 1990s anime, the one who brings forth "the Silence" of total world annihilation is called "the Messiah of Silence", namely Mistress 9 of the Death Busters. The three Sailor Guardians of the Outer Planets had initially believed that to be Sailor Saturn, the final Sailor Guardian. Messiah is the final persona of the protagonist of Persona 3 (2006), obtained after he understands the meaning of his journey The Messiah, a 2007 Persian film depicting the life of Jesus from an Islamic perspective The Young Messiah, a 2016 American film depicting the childhood life of Jesus from a Christian perspective Messiah, a 2020 American TV series. The following works include the concept of a messiah as a leader of a cause or liberator of a people: The Jewish Messiah, a 2008 novel by Arnon Grunberg Messiah, a 1999 novel by Andrei Codrescu See also Kalki, a figure in Hindu eschatology Li Hong, a figure in Taoist eschatology List of messiah claimants Jewish Messiah claimants List of people claimed to be Jesus List of Mahdi claimants Messiah complex Saoshyant, a figure in Zoroastrianism who brings about the final renovation of the world Soter Year 6000 References Footnotes Citations Further reading Aryeh Kaplan, From Messiah to Christ, New York: Orthodox Union, 2004. Joseph Klausner, The Messianic Idea in Israel from Its Beginning to the Completion of the Mishnah, London: George Allen & Unwin, 1956. Jacob Neusner, William S. Green, Ernst Frerichs, Judaisms and their Messiahs at the Turn of the Christian Era'', Cambridge: Cambridge University Press, 1987. External links Messiah in Jewish Virtual Library Christian eschatology Davidic line Jewish eschatology Judeo-Christian topics Religious terminology

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https://en.wikipedia.org/wiki/Margaret%20Mead

Margaret Mead

Margaret Mead (December 16, 1901 – November 15, 1978) was an American cultural anthropologist who featured frequently as an author and speaker in the mass media during the 1960s and the 1970s. She earned her bachelor's degree at Barnard College of Columbia University and her M.A. and Ph.D. degrees from Columbia. Mead served as President of the American Association for the Advancement of Science in 1975. Mead was a communicator of anthropology in modern American and Western culture and was often controversial as an academic. Her reports detailing the attitudes towards sex in South Pacific and Southeast Asian traditional cultures influenced the 1960s sexual revolution. She was a proponent of broadening sexual conventions within the context of Western cultural traditions. Birth, early family life, and education Margaret Mead, the first of five children, was born in Philadelphia but raised in nearby Doylestown, Pennsylvania. Her father, Edward Sherwood Mead, was a professor of finance at the Wharton School of the University of Pennsylvania, and her mother, Emily (née Fogg) Mead, was a sociologist who studied Italian immigrants. Her sister Katharine (1906–1907) died at the age of nine months. That was a traumatic event for Mead, who had named the girl, and thoughts of her lost sister permeated her daydreams for many years. Her family moved frequently and so her early education was directed by her grandmother until, at age 11, she was enrolled by her family at Buckingham Friends School in Lahaska, Pennsylvania. Her family owned the Longland farm from 1912 to 1926. Born into a family of various religious outlooks, she searched for a form of religion that gave an expression of the faith with which she had been formally acquainted, Christianity. In doing so, she found the rituals of the United States Episcopal Church to fit the expression of religion she was seeking. Mead studied one year, 1919, at DePauw University, then transferred to Barnard College. Mead earned her bachelor's degree from Barnard in 1923, began studying with thr professor Franz Boas and Ruth Benedict at Columbia University, and earned her master's degree in 1924. Mead set out in 1925 to do fieldwork in Samoa. In 1926, she joined the American Museum of Natural History, New York City, as assistant curator. She received her Ph.D. from Columbia University in 1929. Personal life Before departing for Samoa, Mead had a short affair with the linguist Edward Sapir, a close friend of her instructor Ruth Benedict. However, Sapir's conservative stances about marriage and women's roles were unacceptable to Mead, and as Mead left to do field work in Samoa, they separated permanently. Mead received news of Sapir's remarriage while she was living in Samoa. There, on a beach, she later burned their correspondence. Mead was married three times. After a six-year engagement, she married her first husband (1923–1928), Luther Cressman, an American theology student who later became an anthropologist. Between 1925 and 1926, she was in Samoa from where on the return boat she met Reo Fortune, a New Zealander headed to Cambridge, England, to study psychology. They were married in 1928, after Mead's divorce from Cressman. Mead dismissively characterized her union with her first husband as "my student marriage" in her 1972 autobiography Blackberry Winter, a sobriquet with which Cressman took vigorous issue. Mead's third and longest-lasting marriage (1936–1950) was to the British anthropologist Gregory Bateson with whom she had a daughter, Mary Catherine Bateson, who would also become an anthropologist. Mead's pediatrician was Benjamin Spock, whose subsequent writings on child rearing incorporated some of Mead's own practices and beliefs acquired from her ethnological field observations which she shared with him; in particular, breastfeeding on the baby's demand, rather than by a schedule. She readily acknowledged that Gregory Bateson was the husband she loved the most. She was devastated when he left her and remained his loving friend ever afterward. She kept his photograph by her bedside wherever she traveled, including beside her hospital deathbed. Mead also had an exceptionally-close relationship with Ruth Benedict, one of her instructors. In her memoir about her parents, With a Daughter's Eye, Mary Catherine Bateson strongly implies that the relationship between Benedict and Mead was partly sexual. Mead never openly identified herself as lesbian or bisexual. In her writings, she proposed that it is to be expected that an individual's sexual orientation may evolve throughout life. She spent her last years in a close personal and professional collaboration with the anthropologist Rhoda Metraux with whom she lived from 1955 until her death in 1978. Letters between the two published in 2006 with the permission of Mead's daughter clearly express a romantic relationship. Mead had two sisters and a brother, Elizabeth, Priscilla, and Richard. Elizabeth Mead (1909–1983), an artist and teacher, married the cartoonist William Steig, and Priscilla Mead (1911–1959) married the author Leo Rosten. Mead's brother, Richard, was a professor. Mead was also the aunt of Jeremy Steig. Career and later life During World War II, Mead was executive secretary of the National Research Council's Committee on Food Habits. She was curator of ethnology at the American Museum of Natural History from 1946 to 1969. She was elected a Fellow of the American Academy of Arts and Sciences in 1948. She taught at The New School and Columbia University, where she was an adjunct professor from 1954 to 1978 and a professor of anthropology and chair of the Division of Social Sciences at Fordham University's Lincoln Center campus from 1968 to 1970, founding their anthropology department. In 1970, she joined the faculty of the University of Rhode Island as a Distinguished Professor of Sociology and Anthropology. Following Ruth Benedict's example, Mead focused her research on problems of child rearing, personality, and culture. She served as president of the Society for Applied Anthropology in 1950 and of the American Anthropological Association in 1960. In the mid-1960s, Mead joined forces with thr communications theorist Rudolf Modley in jointly establishing an organization called Glyphs Inc., whose goal was to create a universal graphic symbol language to be understood by any members of culture, no matter how "primitive." In the 1960s, Mead served as the Vice President of the New York Academy of Sciences. She held various positions in the American Association for the Advancement of Science, notably president in 1975 and chair of the executive committee of the board of directors in 1976. She was a recognizable figure in academia and usually wore a distinctive cape and carried a walking stick. Mead was a key participant in the Macy conferences on cybernetics and an editor of their proceedings. Mead's address to the inaugural conference of the American Society for Cybernetics was instrumental in the development of second-order cybernetics. Mead was featured on two record albums published by Folkways Records. The first, released in 1959, An Interview With Margaret Mead, explored the topics of morals and anthropology. In 1971, she was included in a compilation of talks by prominent women, But the Women Rose, Vol. 2: Voices of Women in American History. She is credited with the term "semiotics" and made it a noun. In later life, Mead was a mentor to many young anthropologists and sociologists, including Jean Houston. In 1976, Mead was a key participant at UN Habitat I, the first UN forum on human settlements. Mead died of pancreatic cancer on November 15, 1978, and is buried at Trinity Episcopal Church Cemetery, Buckingham, Pennsylvania. Work Coming of Age in Samoa (1928) In the foreword to Coming of Age in Samoa, Mead's advisor, Franz Boas, wrote of its significance: Courtesy, modesty, good manners, conformity to definite ethical standards are universal, but what constitutes courtesy, modesty, very good manners, and definite ethical standards is not universal. It is instructive to know that standards differ in the most unexpected ways. Mead's findings suggested that the community ignores both boys and girls until they are about 15 or 16. Before then, children have no social standing within the community. Mead also found that marriage is regarded as a social and economic arrangement in which wealth, rank, and job skills of the husband and wife are taken into consideration. In 1970, National Educational Television produced a documentary in commemoration of the 40th anniversary Mead's first expedition to New Guinea. Through the eyes of Mead on her final visit to the village of Peri, the film records how the role of the anthropologist has changed in the forty years since 1928. In 1983, five years after Mead had died, New Zealand anthropologist Derek Freeman published Margaret Mead and Samoa: The Making and Unmaking of an Anthropological Myth, in which he challenged Mead's major findings about sexuality in Samoan society. Freeman's book was controversial in its turn: later in 1983, a special session of Mead's supporters in the American Anthropological Association (to which Freeman was not invited) declared it to be "poorly written, unscientific, irresponsible and misleading." In 1999, Freeman published another book, The Fateful Hoaxing of Margaret Mead: A Historical Analysis of Her Samoan Research, including previously unavailable material. In his obituary in The New York Times, John Shaw stated that his thesis, though upsetting many, had by the time of his death generally gained widespread acceptance. Recent work has nonetheless challenged his critique. A frequent criticism of Freeman is that he regularly misrepresented Mead's research and views. In a 2009 evaluation of the debate, anthropologist Paul Shankman concluded: There is now a large body of criticism of Freeman's work from a number of perspectives in which Mead, Samoa, and anthropology appear in a very different light than they do in Freeman's work. Indeed, the immense significance that Freeman gave his critique looks like 'much ado about nothing' to many of his critics. While nurture-oriented anthropologists are more inclined to agree with Mead's conclusions, there are other non-anthropologists who take a nature-oriented approach following Freeman's lead, such as the Harvard psychologist Steven Pinker, the biologist Richard Dawkins, the evolutionary psychologist David Buss, the science writer Matt Ridley, and the classicist Mary Lefkowitz. The philosopher Peter Singer has also criticized Mead in his book A Darwinian Left, where he states that "Freeman compiles a convincing case that Mead had misunderstood Samoan customs". In 1996, the author Martin Orans examined Mead's notes preserved at the Library of Congress and credits her for leaving all of her recorded data available to the general public. Orans point out that Freeman's basic criticisms, that Mead was duped by ceremonial virgin Fa'apua'a Fa'amu, who later swore to Freeman that she had played a joke on Mead, were equivocal for several reasons. Mead was well aware of the forms and frequency of Samoan joking, she provided a careful account of the sexual restrictions on ceremonial virgins that corresponds to Fa'apua'a Fa'auma'a's account to Freeman, and Mead's notes make clear that she had reached her conclusions about Samoan sexuality before meeting Fa'apua'a Fa'amu. Orans points out that Mead's data support several different conclusions and that Mead's conclusions hinge on an interpretive, rather than positivist, approach to culture. Orans went on to point out concerning Mead's work elsewhere that her own notes do not support her published conclusive claims. Evaluating Mead's work in Samoa from a positivist stance, Orans's assessment of the controversy was that Mead did not formulate her research agenda in scientific terms and that "her work may properly be damned with the harshest scientific criticism of all, that it is 'not even wrong'." The Intercollegiate Review , published by the Intercollegiate Studies Institute, which promotes conservative thought on college campuses, listed the book as No. 1 on its The Fifty Worst Books of the Century list. Sex and Temperament in Three Primitive Societies (1935) Another influential book by Mead was Sex and Temperament in Three Primitive Societies. It became a major cornerstone of the feminist movement since it claimed that females are dominant in the Tchambuli (now spelled Chambri) Lake region of the Sepik basin of Papua New Guinea (in the western Pacific) without causing any special problems. The lack of male dominance may have been the result of the Australian administration's outlawing of warfare. According to contemporary research, males are dominant throughout Melanesia (although some believe that female witches have special powers). Others have argued that there is still much cultural variation throughout Melanesia, especially in the large island of New Guinea. Moreover, anthropologists often overlook the significance of networks of political influence among females. The formal male-dominated institutions typical of some areas of high population density were not, for example, present in the same way in Oksapmin, West Sepik Province, a more sparsely-populated area. Cultural patterns there were different from, say, Mount Hagen. They were closer to those described by Mead. Mead stated that the Arapesh people, also in the Sepik, were pacifists, but she noted that they on occasion engage in warfare. Her observations about the sharing of garden plots among the Arapesh, the egalitarian emphasis in child rearing, and her documentation of predominantly peaceful relations among relatives are very different from the "big man" displays of dominance that were documented in more stratified New Guinea cultures, such as by Andrew Strathern. They are a different cultural pattern. In brief, her comparative study revealed a full range of contrasting gender roles: "Among the Arapesh, both men and women were peaceful in temperament and neither men nor women made war. "Among the Mundugumor, the opposite was true: both men and women were warlike in temperament. "And the Tchambuli were different from both. The men 'primped' and spent their time decorating themselves while the women worked and were the practical ones—the opposite of how it seemed in early 20th century America." Deborah Gewertz (1981) studied the Chambri (called Tchambuli by Mead) in 1974–1975 and found no evidence of such gender roles. Gewertz states that as far back in history as there is evidence (1850s), Chambri men dominated the women, controlled their produce, and made all important political decisions. In later years, there has been a diligent search for societies in which women dominate men or for signs of such past societies, but none has been found (Bamberger 1974). Jessie Bernard criticised Mead's interpretations of her findings and argued that Mead was biased in her descriptions by using of subjective descriptions. Bernard argues that Mead claimed the Mundugumor women were temperamentally identical to men, but her reports indicate that there were in fact sex differences; Mundugumor women hazed each other less than men hazed each other and made efforts to make themselves physically desirable to others, married women had fewer affairs than married men, women were not taught to use weapons, women were used less as hostages and Mundugumor men engaged in physical fights more often than women. In contrast, the Arapesh were also described as equal in temperament, but Bernard states that Mead's own writings indicate that men physically fought over women, yet women did not fight over men. The Arapesh also seemed to have some conception of sex differences in temperament, as they would sometimes describe a woman as acting like a particularly quarrelsome man. Bernard also questioned if the behaviour of men and women in those societies differed as much from Western behaviour as Mead claimed. Bernard argued that some of her descriptions could be equally descriptive of a Western context. Despite its feminist roots, Mead's work on women and men was also criticized by Betty Friedan on the basis that it contributes to infantilizing women. Other research areas In 1926, there was much debate about race and intelligence. Mead felt the methodologies involved in the experimental psychology research supporting arguments of racial superiority in intelligence were substantially flawed. In "The Methodology of Racial Testing: Its Significance for Sociology," Mead proposes that there are three problems with testing for racial differences in intelligence. First, there are concerns with the ability to validly equate one's test score with what Mead refers to as racial admixture or how much Negro or Indian blood an individual possesses. She also considers whether that information is relevant when interpreting IQ scores. Mead remarks that a genealogical method could be considered valid if it could be "subjected to extensive verification." In addition, the experiment would need a steady control group to establish whether racial admixture was actually affecting intelligence scores. Next, Mead argues that it is difficult to measure the effect that social status has on the results of a person's intelligence test. She meant that environment (family structure, socioeconomic status, and exposure to language, etc.) has too much influence on an individual to attribute inferior scores solely to a physical characteristic such as race. Then, Mead adds that language barriers sometimes create the biggest problem of all. Similarly, Stephen J. Gould finds three main problems with intelligence testing in his 1981 book The Mismeasure of Man that relate to Mead's view of the problem of determining whether there are racial differences in intelligence. In 1929, Mead and Fortune visited Manus, now the northernmost province of Papua New Guinea, and traveled there by boat from Rabaul. She amply describes her stay there in her autobiography, and it is mentioned in her 1984 biography by Jane Howard. On Manus, she studied the Manus people of the south coast village of Peri. "Over the next five decades Mead would come back oftener to Peri than to any other field site of her career.' Mead has been credited with persuading the American Jewish Committee to sponsor a project to study European Jewish villages, shtetls, in which a team of researchers would conduct mass interviews with Jewish immigrants living in New York City. The resulting book, widely cited for decades, allegedly created the Jewish mother stereotype, a mother intensely loving but controlling to the point of smothering and engendering guilt in her children through the suffering she professed to undertake for their sakes. Mead worked for the RAND Corporation, a US Air Force military-funded private research organization, from 1948 to 1950 to study Russian culture and attitudes toward authority. As an Anglican Christian, Mead played a considerable part in the drafting of the 1979 American Episcopal Book of Common Prayer. Controversy After her death, Mead's Samoan research was criticized by the anthropologist Derek Freeman, who published a book arguing against many of Mead's conclusions in Coming of Age in Samoa.<ref>Derek Freeman (1983). Margaret Mead and Samoa. Cambridge, London: Harvard University Press. .</ref> Freeman argued that Mead had misunderstood Samoan culture when she argued that Samoan culture did not place many restrictions on youths' sexual explorations. Freeman argued instead that Samoan culture prized female chastity and virginity and that Mead had been misled by her female Samoan informants. Freeman found that the Samoan islanders whom Mead had depicted in such utopian terms were intensely competitive and had murder and rape rates higher than those in the United States. Furthermore, the men were intensely sexually jealous, which contrasted sharply with Mead’s depiction of 'free love" among the Samoans. Freeman's critique was met with a considerable backlash and harsh criticism from the anthropology community, but it was received enthusiastically by communities of scientists who believed that sexual mores were more or less universal across cultures. Some anthropologists who studied Samoan culture argued in favor of Freeman's findings and contradicted those of Mead, but others argued that Freeman's work did not invalidate Mead's work because Samoan culture had been changed by the integration of Christianity in the decades between Mead's and Freeman's fieldwork periods. Mead was careful to shield the identity of all her subjects for confidentiality, but Freeman found and interviewed one of her original participants, and Freeman reported that she admitted to having wilfully misled Mead. She said that she and her friends were having fun with Mead and telling her stories. On the whole, anthropologists have rejected the notion that Mead's conclusions rested on the validity of a single interview with a single person and find instead that Mead based her conclusions on the sum of her observations and interviews during her time in Samoa and that the status of the single interview did not falsify her work. Some anthropologists have however maintained that even though Freeman's critique was invalid, Mead's study was not sufficiently scientifically rigorous to support the conclusions she drew. In her 2015 book Galileo's Middle Finger, Alice Dreger argues that Freeman's accusations were unfounded and misleading. A detailed review of the controversy by Paul Shankman, published by the University of Wisconsin Press in 2009, supports the contention that Mead's research was essentially correct and concludes that Freeman cherry-picked his data and misrepresented both Mead and Samoan culture. A survey of 301 anthropology faculty in the United States in 2016 had two thirds agreeing with a statement that Mead "romanticizes the sexual freedom of Samoan adolescents" and half agreeing that it was ideologically motivated. Legacy In 1976, Mead was inducted into the National Women's Hall of Fame. On January 19, 1979, US President Jimmy Carter announced that he was awarding the Presidential Medal of Freedom posthumously to Mead. UN Ambassador Andrew Young presented the award to Mead's daughter at a special program honoring her contributions that was sponsored by the American Museum of Natural History, where she spent many years of her career. The citation read: In 1979, the Supersisters trading card set was produced and distributed; one of the cards featured Mead's name and picture. The 2014 novel Euphoria by Lily King is a fictionalized account of Mead's love/marital relationships with fellow anthropologists Reo Fortune and Gregory Bateson in New Guinea before World War II. In addition, there are several schools named after Mead in the United States: a junior high school in Elk Grove Village, Illinois, an elementary school in Sammamish, Washington and another in Sheepshead Bay, Brooklyn, New York. The US Postal Service issued a stamp of face value 32¢ on May 28, 1998 as part of the Celebrate the Century stamp sheet series. In the 1967 musical Hair, her name is given to a tranvestite "tourist" disturbing the show with the song "My Conviction." Bibliography Note: See also Margaret Mead: The Complete Bibliography 1925–1975, Joan Gordan, ed., The Hague: Mouton. As a sole authorComing of Age in Samoa (1928)Growing Up In New Guinea (1930)The Changing Culture of an Indian Tribe (1932)Sex and Temperament in Three Primitive Societies (1935)And Keep Your Powder Dry: An Anthropologist Looks at America (1942)Male and Female (1949)New Lives for Old: Cultural Transformation in Manus, 1928–1953 (1956)People and Places (1959; a book for young readers)Continuities in Cultural Evolution (1964)Culture and Commitment (1970)The Mountain Arapesh: Stream of events in Alitoa (1971)Blackberry Winter: My Earlier Years (1972; autobiography) As editor or coauthorBalinese Character: A Photographic Analysis, with Gregory Bateson, 1942, New York Academy of Sciences. Soviet Attitudes Toward Authority (1951)Cultural Patterns and Technical Change, editor (1953)Primitive Heritage: An Anthropological Anthology, edited with Nicholas Calas (1953)An Anthropologist at Work, editor (1959, reprinted 1966; a volume of Ruth Benedict's writings)The Study of Culture at a Distance, edited with Rhoda Metraux, 1953Themes in French Culture, with Rhoda Metraux, 1954The Wagon and the Star: A Study of American Community Initiative co-authored with Muriel Whitbeck Brown, 1966A Rap on Race, with James Baldwin, 1971A Way of Seeing, with Rhoda Metraux, 1975 See also Tim Asch Gregory Bateson Ray Birdwhistell Macy Conferences Elsie Clews Parsons Visual anthropology Zora Neale Hurston 75½ Bedford St References Sources Bateson, Mary Catherine. (1984) With a Daughter's Eye: A Memoir of Margaret Mead and Gregory Bateson, New York: William Morrow. Caffey, Margaret M., and Patricia A. Francis, eds. (2006). To Cherish the Life of the World: Selected Letters of Margaret Mead. New York: Basic Books. Caton, Hiram, ed. (1990) The Samoa Reader: Anthropologists Take Stock, University Press of America. Foerstel, Leonora, and Angela Gilliam, eds. (1992). Confronting the Margaret Mead Legacy: Scholarship, Empire and the South Pacific. Philadelphia: Temple University Press. Freeman, Derek. (1983) Margaret Mead and Samoa, Cambridge, MA: Harvard University Press. Freeman, Derek. (1999) The Fateful Hoaxing of Margaret Mead: A Historical Analysis of Her Samoan Research, Boulder, CO: Westview Press. Holmes, Lowell D. (1987). Quest for the Real Samoa: the Mead/Freeman Controversy and Beyond. South Hadley, MA: Bergin and Garvey. Howard, Jane. (1984). Margaret Mead: A Life, New York: Simon and Schuster. Keeley, Lawrence (1996). War Before Civilization: the Myth of the Peaceful Savage (Oxford University Press). Lapsley, Hilary. (1999). Margaret Mead and Ruth Benedict: The Kinship of Women. University of Massachusetts Press. Lutkehaus, Nancy C. (2008). Margaret Mead: The Making of an American Icon. Princeton: Princeton University Press. Mandler, Peter (2013). Return from the Natives: How Margaret Mead Won the Second World War and Lost the Cold War. New Haven, CT: Yale University Press. Mead, Margaret. 1977. The Future as Frame for the Present. Audio recording of a lecture delivered July 11, 1977. Pinker, Steven A. (1997). How the Mind Works. Sandall, Roger. (2001) The Culture Cult: Designer Tribalism and Other Essays. Shore, Brad. (1982) Sala'ilua: A Samoan Mystery. New York: Columbia University Press. Virginia, Mary E. (2003). Benedict, Ruth (1887–1948). DISCovering U.S. History'' online edition, Detroit: Gale. External links Online video: . Documentary about the Mead-Freeman controversy, including an interview with one of Mead's original informants. Creative Intelligence: Female – "The Silent Revolution: Creative Man In Contemporary Society" Talk at UC Berkeley, 1962 (online audio file) The Institute for Intercultural Studies– ethnographic institute founded by Mead, with resources relating to Mead's work . Visited on May 15, 2014. Library of Congress, Margaret Mead: Human Nature and the Power of Culture American Museum of Natural History, Margaret Mead Film & Video Festival "Margaret Mead, 1901–1978: A Public Face of Anthropology": brief biography, Voice of America. Visited on May 15, 2014. National Academy of Sciences Biographical Memoir The Dell Paperback Collection at the Library of Congress has first edition paperbacks of Mead's works. 1901 births 1978 deaths American anthropologists American anthropology writers American women anthropologists American curators American women curators American systems scientists Psychological anthropologists Visual anthropologists Women systems scientists Women science writers Fellows of the American Academy of Arts and Sciences Presidential Medal of Freedom recipients Barnard College alumni Columbia University alumni Cyberneticists Women cyberneticists Deaths from cancer in New York (state) Deaths from pancreatic cancer DePauw University alumni Kalinga Prize recipients People associated with the American Museum of Natural History Presidents of the American Anthropological Association Columbia University faculty University of Rhode Island faculty Writers from Philadelphia Youth empowerment people Members of the American Philosophical Society 20th-century American non-fiction writers 20th-century American scientists 20th-century American women scientists 20th-century American women writers Social Science Research Council American women non-fiction writers Members of the Society of Woman Geographers 20th-century anthropologists 20th-century American Episcopalians American women academics Bateson family Articles containing video clips

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https://en.wikipedia.org/wiki/Michael%20Palin

Michael Palin

Sir Michael Edward Palin (; born 5 May 1943) is an English actor, comedian, writer, television presenter, and public speaker. He was a member of the Monty Python comedy group. Since 1980 he has made a number of travel documentaries. Palin wrote most of his comedic material with fellow Python member Terry Jones. Before Monty Python, they had worked on other shows including the Ken Dodd Show, The Frost Report, and Do Not Adjust Your Set. Palin appeared in some of the most famous Python sketches, including "Argument Clinic", "Dead Parrot sketch", "The Lumberjack Song", "The Spanish Inquisition", "Bicycle Repair Man" and "The Fish-Slapping Dance". He also regularly played a Gumby. Palin continued to work with Jones away from Python, co-writing Ripping Yarns. He has also appeared in several films directed by fellow Python Terry Gilliam and made notable appearances in other films such as A Fish Called Wanda (1988), for which he won the BAFTA Award for Best Actor in a Supporting Role. He also began a new career as a travel writer and travel documentarian in programmes broadcast on the BBC. His journeys have taken him across the world, including the North and South Poles, the Sahara, the Himalayas, Eastern Europe, and Brazil; in 2018, he visited North Korea, documenting his visit to the isolated country in a series broadcast on Channel 5. In a 2005 poll to find The Comedians' Comedian, he was voted the 30th favourite by fellow comedians and comedy insiders. From 2009 to 2012 he was President of the Royal Geographical Society. On 12 May 2013, Palin was made a BAFTA fellow, the highest honour that is conferred by the organisation. Having been awarded a CBE for services to television in the 2000 New Year Honours, Palin received a knighthood in the 2019 New Year Honours for services to travel, culture and geography. Early and personal life Palin was born in Ranmoor, Sheffield, the second child and only son of Edward Moreton Palin (1900–1977) and Mary Rachel Lockhart (née Ovey; 1903–1990). His father was a Shrewsbury and Cambridge-educated engineer working for a steel firm. His maternal grandfather, Lieutenant-Colonel Richard Lockhart Ovey, DSO, was High Sheriff of Oxfordshire in 1927. Palin was educated at Birkdale and Shrewsbury School. His sister Angela was nine years his senior; despite the age gap the two had a close relationship until her suicide in 1987. Palin is of mixed English and Irish Catholic heritage; he has ancestral roots in Letterkenny, County Donegal. His great-grandmother fled the Irish Famine and was adopted by a wealthy English family. When he was five years old, Palin had his first acting experience at Birkdale playing Martha Cratchit in a school performance of A Christmas Carol. At the age of 10, Palin, still interested in acting, made a comedy monologue and read a Shakespeare play to his mother while playing all the parts. After leaving Shrewsbury in 1962, he went on to read modern history at Brasenose College, Oxford. With fellow student Robert Hewison he performed and wrote, for the first time, comedy material at a university Christmas party. Terry Jones, also a student in Oxford, saw that performance and began writing with Hewison and Palin. That year Palin joined the Brightside and Carbrook Co-operative Society Players and first gained fame when he won an acting award at a Co-op drama festival. He also performed and wrote in the Oxford Revue (called the Et ceteras) with Jones. In 1966, Palin married Helen Gibbins, whom he first met in 1959 on holiday in Southwold in Suffolk. This meeting was later fictionalised in Palin's teleplay for the 1987 BBC television drama East of Ipswich. The couple have three children, Thomas (born 1969), William (born 1971), and Rachel (born 1975), and four grandchildren. Daughter Rachel is a BBC TV director, whose work includes MasterChef: The Professionals. Son William is Director of Conservation at the Old Royal Naval College, Greenwich, London, and oversaw the 2018–19 restoration of the Painted Hall. A photograph of William as a baby briefly appeared in Monty Python and the Holy Grail as "Sir Not-appearing-in-this-film". His nephew is the theatre designer Jeremy Herbert. Palin is an agnostic. He moved to Gospel Oak, London in the 1960s. Early career After finishing university in 1965 Palin became a presenter on a comedy pop show called Now! for the television contractor Television Wales and the West. At the same time Palin was contacted by Jones, who had left university a year earlier, for assistance in writing a theatrical documentary about sex through the ages. Although this project was eventually abandoned, it brought Palin and Jones together as a writing duo and led them to write comedy for various BBC programmes, such as The Ken Dodd Show, The Billy Cotton Bandshow, and The Illustrated Weekly Hudd. They collaborated in writing lyrics for an album by Barry Booth called Diversions. They were also in the team of writers working for The Frost Report, whose other members included Frank Muir, Barry Cryer, Marty Feldman, Ronnie Barker, Ronnie Corbett, Dick Vosburgh and future Monty Python members Graham Chapman, John Cleese and Eric Idle. Although the members of Monty Python had already encountered each other over the years, The Frost Report was the first time all the British members of Monty Python (its sixth member, Terry Gilliam, was at that time an American citizen) worked together. During the run of The Frost Report the Palin/Jones team contributed material to two shows starring John Bird: The Late Show and A Series of Birds. For A Series of Birds the Palin/Jones team had their first experience of writing narrative instead of the short sketches they were accustomed to conceiving. Following The Frost Report the Palin/Jones team worked both as actors and writers on the show Twice a Fortnight with Graeme Garden, Bill Oddie and Jonathan Lynn, and the successful children's comedy show Do Not Adjust Your Set with Idle and David Jason. The show also featured musical numbers by the Bonzo Dog Doo-Dah Band, including future Monty Python musical collaborator Neil Innes. The animations for Do Not Adjust Your Set were made by Terry Gilliam. Eager to work with Palin sans Jones, Cleese later asked him to perform in How to Irritate People together with Chapman and Tim Brooke-Taylor. The Palin/Jones team were reunited for The Complete and Utter History of Britain. Monty Python On the strength of their work on The Frost Report and other programmes, Cleese and Chapman had been offered a show by the BBC, but Cleese was reluctant to do a two-man show for various reasons, among them Chapman's reputedly difficult personality. During this period Cleese contacted Palin about doing the show that would ultimately become Monty Python's Flying Circus. At the same time the success of Do Not Adjust Your Set had led Palin, Jones, Idle and Gilliam to be offered their own series and, while it was still in production, Palin agreed to Cleese's proposal and brought along Idle, Jones and Gilliam. Thus the formation of the Monty Python troupe has been referred to as a result of Cleese's desire to work with Palin and the chance circumstances that brought the other four members into the fold. Palin played various roles in Monty Python, which ranged from manic enthusiasm (such as the lumberjack of "The Lumberjack Song", or Herbert Anchovy, host of the game show "Blackmail") to unflappable calmness (such as the Dead parrot vendor or Cheese Shop proprietor). As a straight man he was often a foil to the rising ire of characters portrayed by Cleese. He also played timid, socially inept characters such as Arthur Putey, the man who sits quietly as a marriage counsellor (Eric Idle) makes love to his wife (Carol Cleveland), and Mr Anchovy, a chartered accountant who wants to become a lion tamer. He appeared as the "It's" man (a Robinson Crusoe-type castaway with torn clothes and a long, unkempt beard) at the beginning of most episodes. He also frequently played a Gumby, a character Palin said "had these moronic views that were expressed with extraordinary force." Palin frequently co-wrote sketches with Terry Jones, including the "Spanish Inquisition sketch", which featured the catchphrase "Nobody expects the Spanish Inquisition!". He also composed songs with Jones including "The Lumberjack Song", "Every Sperm Is Sacred" and "Spam". His solo musical compositions included "Decomposing Composers" and "Finland". Other work After the Monty Python television series ended in 1974, the Palin/Jones team worked on Ripping Yarns, an intermittent television comedy series broadcast over three years from 1976. They had earlier collaborated on the play Secrets from the BBC series Black and Blue in 1973. He starred as Dennis the Peasant in Terry Gilliam's 1977 film Jabberwocky. Palin also appeared in All You Need Is Cash (1978) as Eric Manchester (based on Derek Taylor), the press agent for the Rutles. In 1980, Palin co-wrote Time Bandits with Terry Gilliam. He also acted in the film. In 1982, Palin wrote and starred in The Missionary, co-starring Maggie Smith. In it, he plays the Reverend Charles Fortescue, who is recalled from Africa to aid prostitutes. He co-starred with Maggie Smith again in the 1984 comedy film A Private Function. In 1984, he reunited with Terry Gilliam to appear in Brazil. He appeared in the comedy film A Fish Called Wanda, for which he won the BAFTA Award for Best Actor in a Supporting Role. Cleese reunited the main cast almost a decade later to make Fierce Creatures. After filming for Fierce Creatures finished, Palin went on a travel journey for a BBC documentary and, returning a year later, found that the end of Fierce Creatures had failed at test screenings and had to be reshot. After Fierce Creatures and a small part in The Wind in the Willows, a film directed by and starring Terry Jones, it would be twenty more years until Palin's next film role, as Soviet politician Vyacheslav Molotov in the 2017 satirical black comedy The Death of Stalin. Palin also appeared with John Cleese in his documentary, The Human Face. Palin was cast in a supporting role in the Tom Hanks and Meg Ryan romantic comedy You've Got Mail, but his role was eventually cut entirely. Palin has also appeared in serious drama. In 1991 Palin appeared in a film, American Friends, he wrote based upon a real event in the life of his great-grandfather, a fellow at St John's College, Oxford. In that same year he also played the part of a headmaster in Alan Bleasdale's Channel 4 drama series GBH. In 1994, Palin narrated the English language audiobook version of Esio Trot by children's author Roald Dahl. In 1997, Palin had a small cameo role in Australian soap opera Home and Away. He played an English surfer with a fear of sharks, who interrupts a conversation between two main characters to ask whether there were any sharks in the sea. This was filmed while he was in Australia for the Full Circle series, with a segment about the filming of the role featuring in the series. In November 2005, he appeared in the John Peel's Record Box documentary. In 2013, Palin appeared in a First World War drama titled The Wipers Times written by Ian Hislop and Nick Newman. At the Cannes Film Festival in 2016, it was announced that Palin was set to star alongside Adam Driver in Terry Gilliam's The Man Who Killed Don Quixote. Palin, however, dropped out of the film after it ran into a financial problem. While speaking at the Edinburgh International Film Festival, Palin announced that he was presenting the two-part documentary Michael Palin in North Korea to be broadcast on the British television network Channel 5. The documentary was broadcast in September 2018, in two one-hour segments on Channel 5 in the UK and in a single two-hour programme on National Geographic in the United States. It was broadcast again by Channel 5, in a single two-hour programme in December 2018. In July 2019, Palin performed a one-man stage show at the Torch Theatre, Milford Haven, Wales, about the loss of HMS Erebus during the third Franklin expedition, which is recounted in his book Erebus: The Story of a Ship. Activism Palin assisted Campaign for Better Transport and others with campaigns on sustainable transport, particularly those relating to urban areas, and has been president of the campaign since 1986. On 2 January 2011, he became the first person to sign the UK-based Campaign for Better Transport's Fair Fares Now campaign. In July 2015, he signed an open letter and gave an interview to support "a strong BBC at the centre of British life" at a time the government was reviewing the corporation's size and activities. In July 2010, Palin sent a message of support for the Dongria Kondh tribe of India, who are resisting mining on their land by the company Vedanta Resources. Palin said, "I've been to the Nyamgiri Hills in Orissa and seen the forces of money and power that Vedanta Resources have arrayed against a people who have occupied their land for thousands of years, who husband the forest sustainably and make no great demands on the state or the government. The tribe I visited simply want to carry on living in the villages that they and their ancestors have always lived in." Television documentaries Travel Palin's first travel documentary was episode 4 of the 1980 BBC Television series Great Railway Journeys of the World, entitled "Confessions of a Trainspotter". Throughout the hour-long show, Palin humorously reminisces about his childhood hobby of train spotting while he travels throughout the UK by train from London to the Kyle of Lochalsh, via Manchester, York, Newcastle upon Tyne, Edinburgh and Inverness. He rides vintage railway lines and trains including the Flying Scotsman. At the Kyle of Lochalsh, Palin bought the station's long metal platform sign and is seen lugging it back to London with him. In 1994, Palin travelled through Ireland for the same series, entitled "Derry to Kerry". In a quest for family roots, he attempted to trace his great grandmother – Brita Gallagher – who set sail from Ireland years ago during the Great Famine (1845–1849), bound for a new life in Burlington, New Jersey. The series is a trip along the Palin family line. Starting in 1989, Palin appeared as presenter in a series of travel programmes made for the BBC. It was after the veteran TV globetrotter Alan Whicker and journalist Miles Kington turned down presenting the first of these, Around the World in 80 Days with Michael Palin, that gave Palin the opportunity to present his first and subsequent travel shows. Around the World in 80 Days with Michael Palin (travel 1988; programme release 1989): travelling as closely as possible the path described in the famous Jules Verne story without using aircraft. Pole to Pole with Michael Palin (Travel 1991; Programme release 1992): travelling from the North Pole to the South Pole, following as closely as possible the 30-degree line of longitude, over as much land as possible, i.e., through Europe and Africa. Full Circle with Michael Palin (Travel 1995/96; Programme release 1997): in which he circumnavigated the lands around the Pacific Ocean anti-clockwise; a journey of almost starting on Little Diomede Island in the Bering Strait and taking him through Asia, Oceania and the Americas. Michael Palin's Hemingway Adventure (1999): retracing the footsteps of Ernest Hemingway through the United States, Europe, Africa and the Caribbean. Sahara with Michael Palin (Travel 2001/02; Programme release 2002): in which he trekked around and through the world's largest desert. Himalaya with Michael Palin (Travel 2003/04; Programme release 2004): in which he travels through the Himalaya region. Michael Palin's New Europe (Travel 2006/07; Programme release 2007): in which he travels through Central and Eastern Europe. Brazil with Michael Palin (2012) in which he travels through Brazil. Michael Palin in North Korea on Channel 5 (2018, released in the US as North Korea from the Inside with Michael Palin) in which he visits North Korea at the time of the April 2018 inter-Korean summit. Following each trip, Palin wrote a book about his travels, providing information and insights not included in the TV programme. Each book is illustrated with photographs by Basil Pao, the stills photographer who was on the team. (Exception: the first book, Around the World in 80 Days, contains some pictures by Pao but most are by other photographers.) All seven of these books were also made available as audio books, and all of them are read by Palin himself. Around the World in 80 Days and Hemingway Adventure are unabridged, while the other four books were made in both abridged and unabridged versions. For four of the trips a photography book was made by Pao, each with an introduction written by Palin. These are large coffee-table style books with pictures printed on glossy paper. The majority of the pictures are of various people encountered on the trip, as informal portraits or showing them engaged in some interesting activity. Some of the landscape photos are displayed as two-page spreads. Palin's travel programmes are responsible for a phenomenon termed the "Palin effect": areas of the world that he has visited suddenly become popular tourist attractions – for example, the significant increase in the number of tourists interested in Peru after Palin visited Machu Picchu. In a 2006 survey of "15 of the world's top travel writers" by The Observer, Palin named Peru's Pongo de Mainique (canyon below the Machu Picchu) his "favourite place in the world". Palin notes in his book of Around the World in 80 Days that the final leg of his journey could originally have taken him and his crew on one of the trains involved in the Clapham Junction rail crash, but they arrived ahead of schedule and caught an earlier train. Art and history In recent years, Palin has written and presented occasional documentary programmes on artists that interest him. The first, on Scottish painter Anne Redpath, was Palin on Redpath in 1997. In The Bright Side of Life (2000), Palin continued on a Scottish theme, looking at the work of the Scottish Colourists. Two further programmes followed on European painters; Michael Palin and the Ladies Who Loved Matisse (2004) and Michael Palin and the Mystery of Hammershøi (2005), about the French artist Henri Matisse and Danish artist Vilhelm Hammershøi respectively. The DVD Michael Palin on Art contains all these documentaries except for the Matisse programme. In November 2008, Palin presented a First World War documentary about Armistice Day, 11 November 1918, when thousands of soldiers lost their lives in battle after the war had officially ended. Palin filmed on the battlefields of Northern France and Belgium for the programme, called the Last Day of World War One, produced for the BBC's Timewatch series. Awards and honours Palin was instrumental in setting up the Michael Palin Centre for Stammering Children in 1993. Also in 1993, each member of Monty Python had an asteroid named after them. Palin's is Asteroid 9621 Michaelpalin. In 2003, inside the Globe a commemorative stone was placed – Palin has his own stone, to mark donors to the theatre, but it is misspelled as "Michael Pallin". The story goes that John Cleese paid for the stone, and mischievously insisted on misspelling his name. In honour of his achievements as a traveller, especially rail travel, Palin has two British trains named after him. In 2002, Virgin Trains' new £5 million high speed Super Voyager train number 221130 was named Michael Palin it carries his name externally and a plaque is located adjacent to the onboard shop with information on Palin and his many journeys. Also, National Express East Anglia named a British Rail Class 153 (unit number 153335) after him. (He is a model railway enthusiast.) In 2008, he received the James Joyce Award of the Literary and Historical Society in Dublin. In recognition of his services to the promotion of geography, Palin was awarded the Livingstone Medal of the Royal Scottish Geographical Society in March 2009, along with a Fellowship of this Society (FRGS). In June 2013, he was similarly honoured in Canada with a gold medal for achievements in geography by the Royal Canadian Geographical Society. In June 2009, Palin was elected for a three-year term as President of the Royal Geographical Society. Because of his self-described "amenable, conciliatory character" Michael Palin has been referred to as unofficially "Britain's Nicest Man". In a 2018 poll for Yorkshire Day he was named the greatest Yorkshireman ever, ahead of Sean Bean and Patrick Stewart. In September 2013, Moorlands School, Leeds, named one of their school houses "Palin" after him. The University of St Andrews awarded Palin an honorary Doctor of Science degree during their June 2017 graduation ceremonies, with the degree recognising his contribution to the public's understanding of contemporary geography. He joins his fellow Pythons John Cleese and Terry Jones in receiving an honorary degree from the Fife institution. In October 2018, the Royal Canadian Geographical Society awarded Palin the first Louie Kamookak Medal for advances in geography, for his book on the history of the polar exploration vessel HMS Erebus. He was appointed a Commander of the Order of the British Empire (CBE) in the 2000 New Year Honours. Palin was appointed a Knight Commander of the Order of St Michael and St George (KCMG) in the 2019 New Year Honours for "services to travel, culture and geography". Palin is the only member of the Monty Python team to receive a knighthood. (John Cleese had turned down a CBE in 1996, calling it "too silly", and declined a life peerage in 1999). Legacy In 2017 the British Library acquired Palin's archive consisting of project files relating to his work, notebooks, and his personal diaries. The papers in the archive relate to his work with Monty Python, his later TV work, and his children's and humorous books. Bibliography Travel books Around the World in 80 Days (1989) Pole to Pole (1992) Full Circle (1997) Michael Palin's Hemingway Adventure (1999) Sahara (2002) Himalaya (2004) New Europe (2007) Brazil (2012) North Korea Journal (2019) All his travel books can also be read at no charge, complete and unabridged, on his Palin's Travels website Autobiography (contributor) The Pythons Autobiography by The Pythons (2003) Diaries Diaries 1969–1979: The Python Years. 2006. Diaries 1980–1988: Halfway to Hollywood – The Film Years. London, Weidenfeld & Nicolson. 2009. Diaries 1988–1998: Travelling to Work. London, Weidenfeld & Nicolson. 2014. Diaries 1999–2010: TBC. London, Weidenfeld & Nicolson. 2021. Fiction Bert Fegg's Nasty Book for Boys and Girls w/Terry Jones, illus Martin Honeysett, Frank Bellamy et al. (1974) Dr Fegg's Encyclopaedia of All World Knowledge (1984) (expanded reprint of the above, with Terry Jones and Martin Honeysett) Hemingway's Chair (1995) The Truth (2012) Non-fiction Erebus: The Story of a Ship (2018, UK) Erebus: One Ship, Two Epic Voyages, and the Greatest Naval Mystery of All Time (2018, US/Canada) Children's books Small Harry and the Toothache Pills (1982) Limerics or The Limerick Book (1985) Cyril and the House of Commons (1986) Cyril and the Dinner Party (1986) The Mirrorstone with Alan Lee and Richard Seymour (1986) Plays The Weekend (1994) Selected filmography Television Now! (October 1965 – middle 1966) The Ken Dodd Show Billy Cotton Bandshow The Illustrated Weekly Hudd The Frost Report. (10 March 1966 – 29 June 1967) The Late Show (15 October 1966 – 1 April 1967) A Series of Bird's (1967) (3 October 1967 – 21 November 1967 screenwriter (guest stars) Twice a Fortnight (21 October 1967 – 23 December 1967) Do Not Adjust Your Set (26 December 1967 – 14 May 1969) Broaden Your Mind (1968) How to Irritate People (1968) Marty (1968) The Complete and Utter History of Britain (1969) Monty Python's Flying Circus (5 October 1969 – 5 December 1974) Three Men in a Boat (1975) Saturday Night Live (Hosted 8 April 1978 with Musical Guest Eugene Record, 27 January 1979 with The Doobie Brothers, 12 May 1979 with James Taylor and 21 January 1984 with Mary Palin, his mother) Ripping Yarns (1976–1979) Great Railway Journeys of the World, episode title "Confessions of a Trainspotter" (1980) East of Ipswich (1987) writer Around the World in 80 Days with Michael Palin (1989) GBH (1991) Pole to Pole with Michael Palin (1992) Tracey Ullman: A Class Act (1993) Great Railway Journeys, episode title "Derry to Kerry" (1994) The Wind in the Willows (1995) The Willows in Winter (1996) Full Circle with Michael Palin (1997) Palin on Redpath (1997) Michael Palin's Hemingway Adventure (1999) Michael Palin On... The Colourists (2000) Sahara with Michael Palin (2002) Life on Air (2002) Himalaya with Michael Palin (2004) Michael Palin and the Ladies Who Loved Matisse (2004) Michael Palin and the Mystery of Hammershøi (2005) Michael Palin's New Europe (2007) Robbie the Reindeer – Close Encounters of the Herd Kind (2007 – Gariiiiiii/Gary) Around the World in 20 Years (30 December 2008) Brazil with Michael Palin (2012) The Wipers Times (2013) Michael Palin in Wyeth's World (2013) Remember Me (2014) Clangers (2015 – narrator) Michael Palin's Quest for Artemisia (2015) Vanity Fair William Makepeace Thakery (2018) Michael Palin in North Korea (2018) Worzel Gummidge: the Green Man (2019) The Simpsons: Museum Curator (2020) Michael Palin: Travels of a Lifetime (2020) Radio The Weekend (2017, adapted from his 1994 stage play) John Finnemore's Double Acts – "The Wroxton Box" (Series 2, Episode 6; 2017) Torchwood: Tropical Beach Sounds and Other Relaxing Seascapes #4 (April 2020) Awards BAFTA Awards 1984 Nominated – BAFTA Award for "Best Original Song" (the award was discontinued after the 1985 ceremonies) for Every Sperm is Sacred from The Meaning of Life (shared with André Jacquemin, Dave Howman and Terry Jones) 1989 Won – BAFTA Award for Best Actor in a Supporting Role for A Fish Called Wanda (as Ken Pile) 1992 Nominated – British Academy Television Award for Best Actor for GBH 2005 Won – BAFTA Special Award 2009 Won – BAFTA Special Award as part of the Monty Python team for outstanding contribution to film and television 2013 Won – BAFTA Academy Fellowship Award Other awards 2011 Awarded the Aardman Slapstick Visual Comedy Legend award for "significant contributions made to the world of comedy". 2020 National Television Awards Special Recognition Award References Further reading Jones, Mark (2010), The Famous Charisma Discography The Record Press/Bristol Folk Publications  – discography of Monty Python's record label, includes foreword by Michael Palin Novick, Jeremy (2001), Life of Michael: an Illustrated Biography of Michael Palin Headline Publishing (a division of Hodder Headline) Ross, Robert (1997). Monty Python Encyclopedia B.T. Batsford Ltd, London Wilmut, Roger (1980). From Fringe to Flying Circus: Celebrating a Unique Generation of Comedy 1960–1980 Eyre Methuen Ltd External links Michael Palin – BBC Guide to Comedy Michael Palin – Comedy Zone Michael Palin Centre for Stammering Children Michael Palin interview on BBC Radio 4 Desert Island Discs, 23 November 1979 Michael Palin | Culture | The Guardian 1943 births Living people 20th-century English comedians 20th-century English male actors 21st-century English comedians 21st-century English male actors Actors awarded knighthoods Alumni of Brasenose College, Oxford Audiobook narrators BAFTA fellows Best Supporting Actor BAFTA Award winners British male comedy actors British male film actors British male television actors British male television writers Comedians from Yorkshire Commanders of the Order of the British Empire English agnostics English comedy writers English diarists English male comedians English male film actors English male screenwriters English male television actors English people of Irish descent English screenwriters English television presenters English television writers English travel writers Fellows of the Royal Scottish Geographical Society Knights Commander of the Order of St Michael and St George Male actors from Sheffield Monty Python members People educated at Birkdale School People educated at Shrewsbury School People from Ranmoor Presidents of the Royal Geographical Society Recipients of the Royal Geographical Society Gold Medal Television personalities from South Yorkshire Travel broadcasters

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https://en.wikipedia.org/wiki/Materials%20science

Materials science

The interdisciplinary field of materials science, also commonly termed materials science and engineering, covers the design and discovery of new materials, particularly solids. The intellectual origins of materials science stem from the Age of Enlightenment, when researchers began to use analytical thinking from chemistry, physics, and engineering to understand ancient, phenomenological observations in metallurgy and mineralogy. Materials science still incorporates elements of physics, chemistry, and engineering. As such, the field was long considered by academic institutions as a sub-field of these related fields. Beginning in the 1940s, materials science began to be more widely recognized as a specific and distinct field of science and engineering, and major technical universities around the world created dedicated schools for its study. Materials scientists emphasize understanding, how the history of a material (processing) influences its structure, and thus the material's properties and performance. The understanding of processing-structure-properties relationships is called the materials paradigm. This paradigm is used to advance understanding in a variety of research areas, including nanotechnology, biomaterials, and metallurgy. Materials science is also an important part of forensic engineering and failure analysis investigating materials, products, structures or components, which fail or do not function as intended, causing personal injury or damage to property. Such investigations are key to understanding, for example, the causes of various aviation accidents and incidents. History The material of choice of a given era is often a defining point. Phrases such as Stone Age, Bronze Age, Iron Age, and Steel Age are historic, if arbitrary examples. Originally deriving from the manufacture of ceramics and its putative derivative metallurgy, materials science is one of the oldest forms of engineering and applied science. Modern materials science evolved directly from metallurgy, which itself evolved from mining and (likely) ceramics and earlier from the use of fire. A major breakthrough in the understanding of materials occurred in the late 19th century, when the American scientist Josiah Willard Gibbs demonstrated that the thermodynamic properties related to atomic structure in various phases are related to the physical properties of a material. Important elements of modern materials science were products of the Space Race; the understanding and engineering of the metallic alloys, and silica and carbon materials, used in building space vehicles enabling the exploration of space. Materials science has driven, and been driven by, the development of revolutionary technologies such as rubbers, plastics, semiconductors, and biomaterials. Before the 1960s (and in some cases decades after), many eventual materials science departments were metallurgy or ceramics engineering departments, reflecting the 19th and early 20th century emphasis on metals and ceramics. The growth of materials science in the United States was catalyzed in part by the Advanced Research Projects Agency, which funded a series of university-hosted laboratories in the early 1960s, "to expand the national program of basic research and training in the materials sciences." The field has since broadened to include every class of materials, including ceramics, polymers, semiconductors, magnetic materials, biomaterials, and nanomaterials, generally classified into three distinct groups: ceramics, metals, and polymers. The prominent change in materials science during the recent decades is active usage of computer simulations to find new materials, predict properties and understand phenomena. Fundamentals A material is defined as a substance (most often a solid, but other condensed phases can be included) that is intended to be used for certain applications. There are a myriad of materials around us; they can be found in anything from buildings and cars to spacecraft. The main classes of materials are metals, semiconductors, ceramics and polymers. New and advanced materials that are being developed include nanomaterials, biomaterials, and energy materials to name a few. The basis of materials science is studying the interplay between the structure of materials, the processing methods to make that material, and the resulting material properties. The complex combination of these produce the performance of a material in a specific application. Many features across many length scales impact material performance, from the constituent chemical elements, it's microstructure, and macroscopic features from processing. Together with the laws of thermodynamics and kinetics materials scientists aim to understand and improve materials. Structure Structure is one of the most important components of the field of materials science. Materials science examines the structure of materials from the atomic scale, all the way up to the macro scale. Characterization is the way materials scientists examine the structure of a material. This involves methods such as diffraction with X-rays, electrons or neutrons, and various forms of spectroscopy and chemical analysis such as Raman spectroscopy, energy-dispersive spectroscopy, chromatography, thermal analysis, electron microscope analysis, etc. Structure is studied in the following levels. Atomic structure Atomic structure deals with the atoms of the materials, and how they are arranged to give rise to molecules, crystals, etc. Much of the electrical, magnetic and chemical properties of materials arise from this level of structure. The length scales involved are in angstroms (Å). The chemical bonding and atomic arrangement (crystallography) are fundamental to studying the properties and behavior of any material. Bonding To obtain a full understanding of the material structure and how it relates to its properties, the materials scientist must study how the different atoms, ions and molecules are arranged and bonded to each other. This involves the study and use of quantum chemistry or quantum physics. Solid-state physics, solid-state chemistry and physical chemistry are also involved in the study of bonding and structure. Crystallography Crystallography is the science that examines the arrangement of atoms in crystalline solids. Crystallography is a useful tool for materials scientists. In single crystals, the effects of the crystalline arrangement of atoms is often easy to see macroscopically, because the natural shapes of crystals reflect the atomic structure. Further, physical properties are often controlled by crystalline defects. The understanding of crystal structures is an important prerequisite for understanding crystallographic defects. Mostly, materials do not occur as a single crystal, but in polycrystalline form, as an aggregate of small crystals or grains with different orientations. Because of this, the powder diffraction method, which uses diffraction patterns of polycrystalline samples with a large number of crystals, plays an important role in structural determination. Most materials have a crystalline structure, but some important materials do not exhibit regular crystal structure. Polymers display varying degrees of crystallinity, and many are completely non-crystalline. Glass, some ceramics, and many natural materials are amorphous, not possessing any long-range order in their atomic arrangements. The study of polymers combines elements of chemical and statistical thermodynamics to give thermodynamic and mechanical descriptions of physical properties. Nanostructure Materials, which atoms and molecules form constituents in the nanoscale (i.e., they form nanostructure) are called nanomaterials. Nanomaterials are subject of intense research in the materials science community due to the unique properties that they exhibit. Nanostructure deals with objects and structures that are in the 1 - 100 nm range. In many materials, atoms or molecules agglomerate together to form objects at the nanoscale. This causes many interesting electrical, magnetic, optical, and mechanical properties. In describing nanostructures, it is necessary to differentiate between the number of dimensions on the nanoscale. Nanotextured surfaces have one dimension on the nanoscale, i.e., only the thickness of the surface of an object is between 0.1 and 100 nm. Nanotubes have two dimensions on the nanoscale, i.e., the diameter of the tube is between 0.1 and 100 nm; its length could be much greater. Finally, spherical nanoparticles have three dimensions on the nanoscale, i.e., the particle is between 0.1 and 100 nm in each spatial dimension. The terms nanoparticles and ultrafine particles (UFP) often are used synonymously although UFP can reach into the micrometre range. The term 'nanostructure' is often used, when referring to magnetic technology. Nanoscale structure in biology is often called ultrastructure. Microstructure Microstructure is defined as the structure of a prepared surface or thin foil of material as revealed by a microscope above 25× magnification. It deals with objects from 100 nm to a few cm. The microstructure of a material (which can be broadly classified into metallic, polymeric, ceramic and composite) can strongly influence physical properties such as strength, toughness, ductility, hardness, corrosion resistance, high/low temperature behavior, wear resistance, and so on. Most of the traditional materials (such as metals and ceramics) are microstructured. The manufacture of a perfect crystal of a material is physically impossible. For example, any crystalline material will contain defects such as precipitates, grain boundaries (Hall–Petch relationship), vacancies, interstitial atoms or substitutional atoms. The microstructure of materials reveals these larger defects and advances in simulation have allowed an increased understanding of how defects can be used to enhance material properties. Macrostructure Macrostructure is the appearance of a material in the scale millimeters to meters, it is the structure of the material as seen with the naked eye. Properties Materials exhibit myriad properties, including the following. Mechanical properties, see Strength of materials Chemical properties, see Chemistry Electrical properties, see Electricity Thermal properties, see Thermodynamics Optical properties, see Optics and Photonics Magnetic properties, see Magnetism The properties of a material determine its usability and hence its engineering application. Processing Synthesis and processing involves the creation of a material with the desired micro-nanostructure. From an engineering standpoint, a material cannot be used in industry, if no economical production method for it has been developed. Thus, the processing of materials is vital to the field of materials science. Different materials require different processing or synthesis methods. For example, the processing of metals has historically been very important and is studied under the branch of materials science named physical metallurgy. Also, chemical and physical methods are also used to synthesize other materials such as polymers, ceramics, thin films, etc. As of the early 21st century, new methods are being developed to synthesize nanomaterials such as graphene. Thermodynamics Thermodynamics is concerned with heat and temperature and their relation to energy and work. It defines macroscopic variables, such as internal energy, entropy, and pressure, that partly describe a body of matter or radiation. It states that the behavior of those variables is subject to general constraints common to all materials. These general constraints are expressed in the four laws of thermodynamics. Thermodynamics describes the bulk behavior of the body, not the microscopic behaviors of the very large numbers of its microscopic constituents, such as molecules. The behavior of these microscopic particles is described by, and the laws of thermodynamics are derived from, statistical mechanics. The study of thermodynamics is fundamental to materials science. It forms the foundation to treat general phenomena in materials science and engineering, including chemical reactions, magnetism, polarizability, and elasticity. It also helps in the understanding of phase diagrams and phase equilibrium. Kinetics Chemical kinetics is the study of the rates at which systems that are out of equilibrium change under the influence of various forces. When applied to materials science, it deals with how a material changes with time (moves from non-equilibrium to equilibrium state) due to application of a certain field. It details the rate of various processes evolving in materials including shape, size, composition and structure. Diffusion is important in the study of kinetics as this is the most common mechanism by which materials undergo change. Kinetics is essential in processing of materials because, among other things, it details how the microstructure changes with application of heat. Research Materials science is a highly active area of research. Together with materials science departments, physics, chemistry, and many engineering departments are involved in materials research. Materials research covers a broad range of topics, following non-exhaustive list highlights a few important research areas. Nanomaterials Nanomaterials describe, in principle, materials of which a single unit is sized (in at least one dimension) between 1 and 1000 nanometers (10−9 meter), but is usually 1 nm - 100 nm. Nanomaterials research takes a materials science based approach to nanotechnology, using advances in materials metrology and synthesis, which have been developed in support of microfabrication research. Materials with structure at the nanoscale often have unique optical, electronic, or mechanical properties. The field of nanomaterials is loosely organized, like the traditional field of chemistry, into organic (carbon-based) nanomaterials, such as fullerenes, and inorganic nanomaterials based on other elements, such as silicon. Examples of nanomaterials include fullerenes, carbon nanotubes, nanocrystals, etc. Biomaterials A biomaterial is any matter, surface, or construct that interacts with biological systems. The study of biomaterials is called bio materials science. It has experienced steady and strong growth over its history, with many companies investing large amounts of money into developing new products. Biomaterials science encompasses elements of medicine, biology, chemistry, tissue engineering, and materials science. Biomaterials can be derived either from nature or synthesized in a laboratory using a variety of chemical approaches using metallic components, polymers, bioceramics, or composite materials. They are often intended or adapted for medical applications, such as biomedical devices which perform, augment, or replace a natural function. Such functions may be benign, like being used for a heart valve, or may be bioactive with a more interactive functionality such as hydroxylapatite-coated hip implants. Biomaterials are also used every day in dental applications, surgery, and drug delivery. For example, a construct with impregnated pharmaceutical products can be placed into the body, which permits the prolonged release of a drug over an extended period of time. A biomaterial may also be an autograft, allograft or xenograft used as an organ transplant material. Electronic, optical, and magnetic Semiconductors, metals, and ceramics are used today to form highly complex systems, such as integrated electronic circuits, optoelectronic devices, and magnetic and optical mass storage media. These materials form the basis of our modern computing world, and hence research into these materials is of vital importance. Semiconductors are a traditional example of these types of materials. They are materials that have properties that are intermediate between conductors and insulators. Their electrical conductivities are very sensitive to the concentration of impurities, which allows the use of doping to achieve desirable electronic properties. Hence, semiconductors form the basis of the traditional computer. This field also includes new areas of research such as superconducting materials, spintronics, metamaterials, etc. The study of these materials involves knowledge of materials science and solid-state physics or condensed matter physics. Computational materials science With continuing increases in computing power, simulating the behavior of materials has become possible. This enables materials scientists to understand behavior and mechanisms, design new materials, and explain properties formerly poorly understood. Efforts surrounding integrated computational materials engineering are now focusing on combining computational methods with experiments to drastically reduce the time and effort to optimize materials properties for a given application. This involves simulating materials at all length scales, using methods such as density functional theory, molecular dynamics, Monte Carlo, dislocation dynamics, phase field, finite element, and many more. Industry Radical materials advances can drive the creation of new products or even new industries, but stable industries also employ materials scientists to make incremental improvements and troubleshoot issues with currently used materials. Industrial applications of materials science include materials design, cost-benefit tradeoffs in industrial production of materials, processing methods (casting, rolling, welding, ion implantation, crystal growth, thin-film deposition, sintering, glassblowing, etc.), and analytic methods (characterization methods such as electron microscopy, X-ray diffraction, calorimetry, nuclear microscopy (HEFIB), Rutherford backscattering, neutron diffraction, small-angle X-ray scattering (SAXS), etc.). Besides material characterization, the material scientist or engineer also deals with extracting materials and converting them into useful forms. Thus ingot casting, foundry methods, blast furnace extraction, and electrolytic extraction are all part of the required knowledge of a materials engineer. Often the presence, absence, or variation of minute quantities of secondary elements and compounds in a bulk material will greatly affect the final properties of the materials produced. For example, steels are classified based on 1/10 and 1/100 weight percentages of the carbon and other alloying elements they contain. Thus, the extracting and purifying methods used to extract iron in a blast furnace can affect the quality of steel that is produced. Ceramics and glasses Another application of materials science is the study of ceramics and glasses, typically the most brittle materials with industrial relevance. Many ceramics and glasses exhibit covalent or ionic-covalent bonding with SiO2 (silica) as a fundamental building block. Ceramics - not to be confused with raw, unfired clay - are usually seen in crystalline form. The vast majority of commercial glasses contain a metal oxide fused with silica. At the high temperatures used to prepare glass, the material is a viscous liquid which solidifies into a disordered state upon cooling. Windowpanes and eyeglasses are important examples. Fibers of glass are also used for long-range telecommunication and optical transmission. Scratch resistant Corning Gorilla Glass is a well-known example of the application of materials science to drastically improve the properties of common components. Engineering ceramics are known for their stiffness and stability under high temperatures, compression and electrical stress. Alumina, silicon carbide, and tungsten carbide are made from a fine powder of their constituents in a process of sintering with a binder. Hot pressing provides higher density material. Chemical vapor deposition can place a film of a ceramic on another material. Cermets are ceramic particles containing some metals. The wear resistance of tools is derived from cemented carbides with the metal phase of cobalt and nickel typically added to modify properties. Composites Another application of materials science in industry is making composite materials. These are structured materials composed of two or more macroscopic phases. Applications range from structural elements such as steel-reinforced concrete, to the thermal insulating tiles, which play a key and integral role in NASA's Space Shuttle thermal protection system, which is used to protect the surface of the shuttle from the heat of re-entry into the Earth's atmosphere. One example is reinforced Carbon-Carbon (RCC), the light gray material, which withstands re-entry temperatures up to and protects the Space Shuttle's wing leading edges and nose cap. RCC is a laminated composite material made from graphite rayon cloth and impregnated with a phenolic resin. After curing at high temperature in an autoclave, the laminate is pyrolized to convert the resin to carbon, impregnated with furfural alcohol in a vacuum chamber, and cured-pyrolized to convert the furfural alcohol to carbon. To provide oxidation resistance for reuse ability, the outer layers of the RCC are converted to silicon carbide. Other examples can be seen in the "plastic" casings of television sets, cell-phones and so on. These plastic casings are usually a composite material made up of a thermoplastic matrix such as acrylonitrile butadiene styrene (ABS) in which calcium carbonate chalk, talc, glass fibers or carbon fibers have been added for added strength, bulk, or electrostatic dispersion. These additions may be termed reinforcing fibers, or dispersants, depending on their purpose. Polymers Polymers are chemical compounds made up of a large number of identical components linked together like chains. They are an important part of materials science. Polymers are the raw materials (the resins) used to make what are commonly called plastics and rubber. Plastics and rubber are really the final product, created after one or more polymers or additives have been added to a resin during processing, which is then shaped into a final form. Plastics which have been around, and which are in current widespread use, include polyethylene, polypropylene, polyvinyl chloride (PVC), polystyrene, nylons, polyesters, acrylics, polyurethanes, and polycarbonates and also rubbers, which have been around are natural rubber, styrene-butadiene rubber, chloroprene, and butadiene rubber. Plastics are generally classified as commodity, specialty and engineering plastics. Polyvinyl chloride (PVC) is widely used, inexpensive, and annual production quantities are large. It lends itself to a vast array of applications, from artificial leather to electrical insulation and cabling, packaging, and containers. Its fabrication and processing are simple and well-established. The versatility of PVC is due to the wide range of plasticisers and other additives that it accepts. The term "additives" in polymer science refers to the chemicals and compounds added to the polymer base to modify its material properties. Polycarbonate would be normally considered an engineering plastic (other examples include PEEK, ABS). Such plastics are valued for their superior strengths and other special material properties. They are usually not used for disposable applications, unlike commodity plastics. Specialty plastics are materials with unique characteristics, such as ultra-high strength, electrical conductivity, electro-fluorescence, high thermal stability, etc. The dividing lines between the various types of plastics is not based on material but rather on their properties and applications. For example, polyethylene (PE) is a cheap, low friction polymer commonly used to make disposable bags for shopping and trash, and is considered a commodity plastic, whereas medium-density polyethylene (MDPE) is used for underground gas and water pipes, and another variety called ultra-high-molecular-weight polyethylene (UHMWPE) is an engineering plastic which is used extensively as the glide rails for industrial equipment and the low-friction socket in implanted hip joints. Metal alloys The study of metal alloys is a significant part of materials science. Of all the metallic alloys in use today, the alloys of iron (steel, stainless steel, cast iron, tool steel, alloy steels) make up the largest proportion both by quantity and commercial value. Iron alloyed with various proportions of carbon gives low, mid and high carbon steels. An iron-carbon alloy is only considered steel, if the carbon level is between 0.01% and 2.00%. For the steels, the hardness and tensile strength of the steel is related to the amount of carbon present, with increasing carbon levels also leading to lower ductility and toughness. Heat treatment processes such as quenching and tempering can significantly change these properties, however. Cast Iron is defined as an iron–carbon alloy with more than 2.00%, but less than 6.67% carbon. Stainless steel is defined as a regular steel alloy with greater than 10% by weight alloying content of Chromium. Nickel and Molybdenum are typically also found in stainless steels. Other significant metallic alloys are those of aluminium, titanium, copper and magnesium. Copper alloys have been known for a long time (since the Bronze Age), while the alloys of the other three metals have been relatively recently developed. Due to the chemical reactivity of these metals, the electrolytic extraction processes required were only developed relatively recently. The alloys of aluminium, titanium and magnesium are also known and valued for their high strength to weight ratios and, in the case of magnesium, their ability to provide electromagnetic shielding. These materials are ideal for situations, where high strength to weight ratios are more important than bulk cost, such as in the aerospace industry and certain automotive engineering applications. Semiconductors The study of semiconductors is a significant part of materials science. A semiconductor is a material that has a resistivity between a metal and insulator. Its electronic properties can be greatly altered through intentionally introducing impurities or doping. From these semiconductor materials, things such as diodes, transistors, light-emitting diodes (LEDs), and analog and digital electric circuits can be built, making them materials of interest in industry. Semiconductor devices have replaced thermionic devices (vacuum tubes) in most applications. Semiconductor devices are manufactured both as single discrete devices and as integrated circuits (ICs), which consist of a number—from a few to millions—of devices manufactured and interconnected on a single semiconductor substrate. Of all the semiconductors in use today, silicon makes up the largest portion both by quantity and commercial value. Monocrystalline silicon is used to produce wafers used in the semiconductor and electronics industry. Second to silicon, gallium arsenide (GaAs) is the second most popular semiconductor used. Due to its higher electron mobility and saturation velocity compared to silicon, it is a material of choice for high-speed electronics applications. These superior properties are compelling reasons to use GaAs circuitry in mobile phones, satellite communications, microwave point-to-point links and higher frequency radar systems. Other semiconductor materials include germanium, silicon carbide, and gallium nitride and have various applications. Relation with other fields Materials science evolved, starting from the 1950s because it was recognized that to create, discover and design new materials, one had to approach it in a unified manner. Thus, materials science and engineering emerged in many ways: renaming and/or combining existing metallurgy and ceramics engineering departments; splitting from existing solid state physics research (itself growing into condensed matter physics); pulling in relatively new polymer engineering and polymer science; recombining from the previous, as well as chemistry, chemical engineering, mechanical engineering, and electrical engineering; and more. The field of materials science and engineering is important both from a scientific perspective, as well as for applications field. Materials are of the utmost importance for engineers (or other applied fields) because usage of the appropriate materials is crucial when designing systems. As a result, materials science is an increasingly important part of an engineer's education. The field is inherently interdisciplinary, and the materials scientists or engineers must be aware and make use of the methods of the physicist, chemist and engineer. Conversely, fields such as life sciences and archaeology can inspire the development of new materials and processes, in bioinspired and paleoinspired approaches. Thus, there remain close relationships with these fields. Conversely, many physicists, chemists and engineers find themselves working in materials science due to the significant overlaps between the fields. Emerging technologies Subdisciplines The main branches of materials science stem from the three main classes of materials: ceramics, metals, and polymers. Ceramic engineering Metallurgy Polymer science and polymer engineering There are additionally broadly applicable, materials independent, endeavors. Materials characterization Computational materials science Materials informatics There are also relatively broad focuses across materials on specific phenomena and techniques. Crystallography Nuclear spectroscopy Surface science Tribology Related fields Condensed matter physics Mineralogy Solid-state chemistry Solid-state physics Supramolecular chemistry Professional societies American Ceramic Society ASM International Association for Iron and Steel Technology Materials Research Society The Minerals, Metals & Materials Society See also Bio-based material Bioplastic Forensic materials engineering List of emerging materials science technologies List of materials science journals List of materials analysis methods Materials science in science fiction Timeline of materials technology References Citations Bibliography Further reading Timeline of Materials Science at The Minerals, Metals & Materials Society (TMS) accessed March 2007 External links MS&T conference organized by the main materials societies MIT OpenCourseWare for MSE Building engineering eo:Materiala Inĝenierarto

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https://en.wikipedia.org/wiki/Mitsubishi%20A6M%20Zero

Mitsubishi A6M Zero

The Mitsubishi A6M "Zero" is a long-range carrier-based fighter aircraft formerly manufactured by Mitsubishi Aircraft Company, a part of Mitsubishi Heavy Industries, and was operated by the Imperial Japanese Navy from 1940 to 1945. The A6M was designated as the , or the Mitsubishi A6M Rei-sen. The A6M was usually referred to by its pilots as the Reisen (, zero fighter), "0" being the last digit of the imperial year 2600 (1940) when it entered service with the Imperial Navy. The official Allied reporting name was "Zeke", although the name "Zero" (from Type 0) was used colloquially as well. The Zero is considered to have been the most capable carrier-based fighter in the world when it was introduced early in World War II, combining excellent maneuverability and very long range. The Imperial Japanese Navy Air Service (IJNAS) also frequently used it as a land-based fighter. In early combat operations, the Zero gained a reputation as a dogfighter, achieving an outstanding kill ratio of 12 to 1, but by mid-1942 a combination of new tactics and the introduction of better equipment enabled Allied pilots to engage the Zero on generally equal terms. By 1943, the Zero was less effective against newer Allied fighters due to design limitations. It lacked hydraulic boosting for its ailerons and rudder, rendering it extremely difficult to maneuver at high speeds. By 1944, with Allied fighters approaching the A6M levels of maneuverability and consistently exceeding its firepower, armor, and speed, the A6M had largely become outdated as a fighter aircraft. However, as design delays and production difficulties hampered the introduction of newer Japanese aircraft models, the Zero continued to serve in a front-line role until the end of the war in the Pacific. During the final phases, it was also adapted for use in kamikaze operations. Japan produced more Zeros than any other model of combat aircraft during the war. Design and development The Mitsubishi A5M fighter was just entering service in early 1937, when the Imperial Japanese Navy (IJN) started looking for its eventual replacement. On 5 October 1937, it issued "Planning Requirements for the Prototype 12-shi Carrier-based Fighter", sending it to Nakajima and Mitsubishi. Both firms started preliminary design work while they awaited more definitive requirements to be handed over in a few months. Based on the experiences of the A5M in China, the IJN sent out updated requirements in October calling for a speed of at and a climb to in 9.5 minutes. With drop tanks, it wanted an endurance of two hours at normal power, or six to eight hours at economical cruising speed. Armament was to consist of two 20 mm cannons, two 7.7 mm (.303 in) machine guns and two bombs. A complete radio set was to be mounted in all aircraft, along with a radio direction finder for long-range navigation. The maneuverability was to be at least equal to that of the A5M, while the wingspan had to be less than to allow for use on aircraft carriers. Nakajima's team considered the new requirements unachievable and pulled out of the competition in January. Mitsubishi's chief designer, Jiro Horikoshi, thought that the requirements could be met, but only if the aircraft were made as light as possible. Every possible weight-saving measure was incorporated into the design. Most of the aircraft was built of a new top-secret aluminium alloy developed by Sumitomo Metal Industries in 1936. Called "extra super duralumin" (ESD), it was lighter, stronger and more ductile than other alloys (e.g. 24S alloy) used at the time, but was prone to corrosive attack, which made it brittle. This detrimental effect was countered with an anti-corrosion coating applied after fabrication. No armour protection was provided for the pilot, engine or other critical points of the aircraft, and self-sealing fuel tanks, which were becoming common among other combatants, were not used. This made the Zero lighter, more maneuverable, and the longest-ranged single-engine fighter of World War II, which made it capable of searching out an enemy hundreds of kilometres away, bringing it to battle, then returning to its base or aircraft carrier. However, that tradeoff in weight and construction also made it prone to catching fire and exploding when struck by enemy fire. With its low-wing cantilever monoplane layout, retractable, wide-set conventional landing gear and enclosed cockpit, the Zero was one of the most modern carrier-based aircraft in the world at the time of its introduction. It had a fairly high-lift, low-speed wing with very low wing loading. This, combined with its light weight, resulted in a very low stalling speed of well below . This was the main reason for its phenomenal maneuverability, allowing it to out-turn any Allied fighter of the time. Early models were fitted with servo tabs on the ailerons after pilots complained that control forces became too heavy at speeds above . They were discontinued on later models after it was found that the lightened control forces were causing pilots to overstress the wings during vigorous maneuvers. Name The A6M is usually known as the "Zero" from its Japanese Navy type designation, Type 0 carrier fighter (Rei shiki Kanjō sentōki, ), taken from the last digit of the Imperial year 2600 (1940) when it entered service. In Japan, it was unofficially referred to as both Rei-sen and Zero-sen; Japanese pilots most commonly called it Zero-sen, where sen is the first syllable of sentōki, Japanese for "fighter plane". In the official designation "A6M", the "A" signified a carrier-based fighter, "6" meant that it was the sixth such model built for the Imperial Navy, and "M" indicated Mitsubishi as the manufacturer. The official Allied code name was "Zeke", in keeping with the practice of giving male names to Japanese fighters, female names to bombers, bird names to gliders, and tree names to trainers. "Zeke" was part of the first batch of "hillbilly" code names assigned by Captain Frank T. McCoy of Nashville, Tennessee (assigned to the Allied Technical Air Intelligence Unit (ATAIU) at Eagle Farm Airport in Australia), who wanted quick, distinctive, easy-to-remember names. The Allied code for Japanese aircraft was introduced in 1942, and McCoy chose "Zeke" for the "Zero". Later, two variants of the fighter received their own code names. The Nakajima A6M2-N floatplane version of the Zero was called "Rufe", and the A6M3-32 variant was initially called "Hap". General "Hap" Arnold, commander of the USAAF, objected to that name, however, so it was changed to "Hamp". Operational history The first Zeros (pre-series of 15 A6M2) went into operation with the 12th Rengo Kōkūtai in July 1940. On 13 September 1940, the Zeros scored their first air-to-air victories when 13 A6M2s led by Lieutenant Saburo Shindo, escorting 27 G3M "Nell's medium-heavy bombers on a raid of Chunking, attacked 34 Soviet-built Polikarpov I-15s and I-16s of the Chinese Nationalist Air Force, claimed "all 27" of the Chinese fighters shot down without loss to themselves, however Major Louie Yim-qun had in fact nursed his I-15 riddled with 48 bullet holes back to base, and Lieutenant Gao Youxin claimed to have shot down one of Lt. Shindo's Zeroes, but at most 4 Zeroes sustained some damage in the 1/2 hour-long dogfight over Chunking. By the time they were redeployed a year later, the Zeros had shot down 99 Chinese aircraft (up to 266 according to other sources). At the time of the attack on Pearl Harbor, 521 Zeros were active in the Pacific, 328 in first-line units. The carrier-borne Model 21 was the type encountered by the Americans. Its tremendous range of over allowed it to range farther from its carrier than expected, appearing over distant battlefronts and giving Allied commanders the impression that there were several times as many Zeros as actually existed. The Zero quickly gained a fearsome reputation. Thanks to a combination of unsurpassed maneuverability – compared to contemporary Axis fighters – and excellent firepower, it easily disposed of Allied aircraft sent against it in the Pacific in 1941. It proved a difficult opponent even for the Supermarine Spitfire. "The RAF pilots were trained in methods that were excellent against German and Italian equipment but suicide against the acrobatic Japs", as Lt.Gen. Claire Lee Chennault had to notice. Although not as fast as the British fighter, the Mitsubishi fighter could out-turn the Spitfire with ease, sustain a climb at a very steep angle, and stay in the air for three times as long. Allied pilots soon developed tactics to cope with the Zero. Due to its extreme agility, engaging a Zero in a traditional, turning dogfight was likely to be fatal. It was better to swoop down from above in a high-speed pass, fire a quick burst, then climb quickly back up to altitude. A short burst of fire from heavy machine guns or cannon was often enough to bring down the fragile Zero. These tactics were regularly employed by Grumman F4F Wildcat fighters during Guadalcanal defense through high-altitude ambush, which was possible due to early warning system consisted of Coastwatchers and radar. Such "boom-and-zoom" tactics were also successfully used in the China Burma India Theater (CBI) by the "Flying Tigers" of the American Volunteer Group (AVG) against similarly maneuverable Japanese Army aircraft such as the Nakajima Ki-27 Nate and Nakajima Ki-43 Oscar. AVG pilots were trained by their commander Claire Chennault to exploit the advantages of their P-40s, which were very sturdy, heavily armed, generally faster in a dive and level flight at low altitude, with a good rate of roll. Another important maneuver was Lieutenant Commander John S. "Jimmy" Thach's "Thach Weave", in which two fighters would fly about apart. If a Zero latched onto the tail of one of the fighters, the two aircraft would turn toward each other. If the Zero followed his original target through the turn, he would come into a position to be fired on by the target's wingman. This tactic was first used to good effect during the Battle of Midway and later over the Solomon Islands. Many highly experienced Japanese aviators were lost in combat, resulting in a progressive decline in quality, which became a significant factor in Allied successes. Unexpected heavy losses of pilots at the Battles of the Coral Sea and Midway dealt the Japanese carrier air force a blow from which it never fully recovered. Throughout the Battle of Midway Allied pilots expressed a high level of dissatisfaction with the F4F Wildcat. The Commanding Officer of noted: They were astounded by the Zero's superiority: In contrast, Allied fighters were designed with ruggedness and pilot protection in mind. The Japanese ace Saburō Sakai described how the toughness of early Grumman aircraft was a factor in preventing the Zero from attaining total domination: When the powerfully armed Lockheed P-38 Lightning, armed with four "light barrel" AN/M2 .50 cal. Browning machine guns and one 20 mm autocannon, and the Grumman F6F Hellcat and Vought F4U Corsair, each with six AN/M2 .50 calibre Browning guns, appeared in the Pacific theater, the A6M, with its low-powered engine and lighter armament, was hard-pressed to remain competitive. In combat with an F6F or F4U, the only positive thing that could be said of the Zero at this stage of the war was that, in the hands of a skillful pilot, it could maneuver as well as most of its opponents. Nonetheless, in competent hands, the Zero could still be deadly. Due to shortages of high-powered aviation engines and problems with planned successor models, the Zero remained in production until 1945, with over 10,000 of all variants produced. Allied analysis American opinions The American military discovered many of the A6M's unique attributes when they recovered a largely intact specimen of an A6M2, the Akutan Zero, on Akutan Island in the Aleutians. During an air raid over Dutch Harbor on 4 June 1942, one A6M fighter was hit by ground-based anti-aircraft fire. Losing oil, Flight Petty Officer Tadayoshi Koga attempted an emergency landing on Akutan Island about northeast of Dutch Harbor, but his Zero flipped over on soft ground in a sudden crash-landing. Koga died instantly of head injuries (his neck was broken by the tremendous impact), but his wingmen hoped he had survived and so went against Japanese doctrine to destroy disabled Zeros. The relatively-undamaged fighter was found over a month later by an American salvage team and was shipped to Naval Air Station North Island, where testing flights of the repaired A6M revealed both strengths and deficiencies in design and performance. The experts who evaluated the captured Zero found that the plane weighed about fully loaded, some lighter than the F4F Wildcat, the standard United States Navy fighter of the time. The A6M's airframe was "built like a fine watch"; the Zero was constructed with flush rivets, and even the guns were flush with the wings. The instrument panel was a "marvel of simplicity… with no superfluities to distract [the pilot]". What most impressed the experts was that the Zero's fuselage and wings were constructed in one piece, unlike the American method that built them separately and joined the two parts together. The Japanese method was much slower, but resulted in a very strong structure and improved close maneuverability. American test pilots found that the Zero's controls were "very light" at , but stiffened at faster speeds (above ) to safeguard against wing failure. The Zero could not keep up with Allied aircraft in high-speed maneuvers, and its low "never exceed speed" (VNE) made it vulnerable in a dive. Testing also revealed that the Zero could not roll as quickly to the right as it could to the left, which could be exploited. While stable on the ground despite its light weight, the aircraft was designed purely for the attack role, emphasizing long range, maneuverability, and firepower at the expense of protection of its pilot. Most lacked self-sealing tanks and armor plating. British opinions Captain Eric Brown, the Chief Naval Test Pilot of the Royal Navy, recalled being impressed by the Zero during tests of captured aircraft. "I don't think I have ever flown a fighter that could match the rate of turn of the Zero. The Zero had ruled the roost totally and was the finest fighter in the world until mid-1943." Variants A6M1, Type 0 Prototypes The first two A6M1 prototypes were completed in March 1939, powered by the Mitsubishi Zuisei 13 engine with a two-blade propeller. It first flew on 1 April, and passed testing within a remarkably short period. By September, it had already been accepted for Navy testing as the A6M1 Type 0 Carrier Fighter, with the only notable change being a switch to a three-bladed propeller to cure a vibration problem. A6M2a Type 0 Model 11 While the navy was testing the first two prototypes, they suggested that the third be fitted with the Nakajima Sakae 12 engine instead. Mitsubishi had its own engine of this class in the form of the Kinsei, so they were somewhat reluctant to use the Sakae. Nevertheless, when the first A6M2 was completed in January 1940, the Sakae's extra power pushed the performance of the Zero well past the original specifications. The new version was so promising that the Navy had 15 built and shipped to China before they had completed testing. They arrived in Manchuria in July 1940, and first saw combat over Chungking in August. There they proved to be completely untouchable by the Polikarpov I-16s and I-153s that had been such a problem for the A5Ms when in service. In one encounter, 13 Zeros shot down 27 I-15s and I-16s in under three minutes without loss. After hearing of these reports, the navy immediately ordered the A6M2 into production as the Type 0 Carrier Fighter, Model 11. Reports of the Zero's performance filtered back to the US slowly. There they were dismissed by most military officials, who thought it was impossible for the Japanese to build such an aircraft. A6M2b Type 0 Model 21 After the delivery of the 65th aircraft, a further change was worked into the production lines, which introduced folding wingtips to allow them to fit on aircraft carriers. The resulting Model 21 would become one of the most produced versions early in the war. A feature was the improved range with wing tank and drop tank. When the lines switched to updated models, 740 Model 21s had been completed by Mitsubishi, and another 800 by Nakajima. Two other versions of the Model 21 were built in small numbers, the Nakajima-built A6M2-N "Rufe" floatplane (based on the Model 11 with a slightly modified tail), and the A6M2-K two-seat trainer of which a total of 508 were built by Hitachi and the Sasebo Naval Air Arsenal. A6M3 Type 0 Model 32 In 1941, Nakajima introduced the Sakae 21 engine, which used a two-speed supercharger for better altitude performance, and increased power to . A prototype Zero with the new engine was first flown on 15 July 1941. The new Sakae was slightly heavier and somewhat longer due to the larger supercharger, which moved the center of gravity too far forward on the existing airframe. To correct for this, the engine mountings were cut back by to move the engine toward the cockpit. This had the side effect of reducing the size of the main fuselage fuel tank (located between the engine and the cockpit) from to . The cowling was redesigned to enlarge the cowl flaps, revise the oil cooler air intake, and move the carburetor air intake to the upper half of the cowling. The wings were redesigned to reduce span, eliminate the folding tips, and square off the wingtips. The inboard edge of the aileron was moved outboard by one rib, and the wing fuel tanks were enlarged accordingly to . The two 20 mm wing cannon were upgraded from the Type 99 Mark l to the Mark II, which required a bulge in the sheet metal of the wing below each cannon. The wings also included larger ammunition boxes and thus allowing 100 rounds per cannon. The Sakae 21 engine and other changes increased maximum speed by only compared to the Model 21, but sacrificed nearly of range. Nevertheless, the navy accepted the type and it entered production in April 1942. The shorter wingspan led to better roll, and the reduced drag allowed the diving speed to be increased to . On the downside, turning and range, which were the strengths of the Model 21, suffered due to smaller ailerons, decreased lift and greater fuel consumption. The shorter range proved a significant limitation during the Solomons Campaign, during which Zeros based at Rabaul had to travel nearly to their maximum range to reach Guadalcanal and return. Consequently, the Model 32 was unsuited to that campaign and was used mainly for shorter range offensive missions and interception. This variant was flown by only a small number of units, and only 343 were built. A6M3 Type 0 Model 22 In order to correct the deficiencies of the Model 32, a new version with folding wingtips and redesigned wing was introduced. The fuel tanks were moved to the outer wings, fuel lines for a drop tank were installed under each wing and the internal fuel capacity was increased to . More importantly, it regained its capabilities for long operating ranges, similar to the previous A6M2 Model 21, which was vastly shortened by the Model 32. However, before the new design type was accepted formally by the Navy, the A6M3 Model 22 already stood ready for service in December 1942. Approximately 560 aircraft of the new type had been produced in the meantime by Mitsubishi Jukogyo K.K. According to a theory, the very late production Model 22 might have had wings similar to the shortened, rounded-tip wing of the Model 52. One plane of such arrangement was photographed at Lakunai Airfield ("Rabaul East") in the second half of 1943, and has been published widely in a number of Japanese books. While the engine cowling is the same of previous Model 32 and 22, the theory proposes that the plane is an early production Model 52. The Model 32, 22, 22 kou, 52, 52 kou and 52 otsu were all powered by the Nakajima (Sakae) engine. That engine kept its designation in spite of changes in the exhaust system for the Model 52. A6M4 Type 0 Model 41/42 Mitsubishi is unable to state with certainty that it ever used the designation "A6M4" or model numbers for it. However, "A6M4" does appear in a translation of a captured Japanese memo from a Naval Air Technical Arsenal, titled Quarterly Report on Research Experiments, dated 1 October 1942. It mentions a "cross-section of the A6M4 intercooler" then being designed. Some researchers believe "A6M4" was applied to one or two prototype planes fitted with an experimental turbo-supercharged Sakae engine designed for high altitude. Mitsubishi's involvement in the project was probably quite limited or nil; the unmodified Sakae engine was made by Nakajima. The design and testing of the turbo-supercharger was the responsibility of the First Naval Air [Technical] Arsenal (, ) at Yokosuka. At least one photo of a prototype plane exists. It shows a turbo unit mounted in the forward left fuselage. Lack of suitable alloys for use in the manufacture of a turbo-supercharger and its related ducting caused numerous ruptures, resulting in fires and poor performance. Consequently, further development of a turbo-supercharged A6M was cancelled. The lack of acceptance by the navy suggests that the navy did not bestow model number 41 or 42 formally, although it appears that the arsenal did use the designation "A6M4". The prototype engines nevertheless provided useful experience for future engine designs. A6M5 Type 0 Model 52 Sometimes considered as the most effective variant, the Model 52 was developed to again shorten the wings to increase speed and dispense with the folding wing mechanism. In addition, ailerons, aileron trim tab and flaps were revised. Produced first by Mitsubishi, most Model 52s were made by Nakajima. The prototype was made in June 1943 by modifying an A6M3 and was first flown in August 1943. The first Model 52 is said in the handling manual to have production number 3904, which apparently refers to the prototype. Research by Mr. Bunzo Komine published by Mr. Kenji Miyazaki states that aircraft 3904 through 4103 had the same exhaust system and cowl flaps as on the Model 22. This is partially corroborated by two wrecks researched by Mr. Stan Gajda and Mr. L. G. Halls, production number 4007 and 4043, respectively. (The upper cowling was slightly redesigned from that of the Model 22.) An early production A6M5 Zero with non-separated exhaust, with an A6M3 Model 22 in the background. A new exhaust system provided an increment of thrust by aiming the stacks aft and distributing them around the forward fuselage. The new exhaust system required "notched" cowl flaps and heat shields just aft of the stacks. (Note, however, that the handling manual translation states that the new style of exhaust commenced with number 3904. Whether this is correct, indicates retrofitting intentions, refers to the prototype but not to all subsequent planes, or is in error is not clear.) From production number 4274, the wing fuel tanks received carbon dioxide fire extinguishers. From number 4354, the radio became the Model 3, aerial Mark 1, and at that point it is said the antenna mast was shortened slightly. Through production number 4550, the lowest exhaust stacks were approximately the same length as those immediately above them. This caused hot exhaust to burn the forward edge of the landing gear doors and heat the tires. Therefore, from number 4551 Mitsubishi began to install shorter bottom stacks. Nakajima manufactured the Model 52 at its Koizumi plant in Gunma Prefecture. The A6M5 had a maximum speed of ) at and reached that altitude in 7:01 minutes. Subsequent variants included: A6M5a, Model (Kō, 52a) – Starting at Mitsubishi number 4651, an armament change substituted the belt-fed Type 99-2 Mark 4 cannon, with 125 rounds per gun, in place of the drum-fed Type 99-2 Mark 3 cannon that carried 100 rounds per gun. Hence, the bulge in the underside of the wing for each cannon's ammunition drum was deleted and the ejection port for spent cartridge cases was moved. Thicker wing skinning was installed to permit higher diving speeds. A6M5b, Model (Otsu, 52b) – Armament change: The 7.7 mm (.303 in) Type 97 gun ( muzzle velocity and range) in the right forward fuselage was replaced by a 13.2 mm Type 3 Browning-derived gun ( muzzle velocity and range, with a rate of fire of 800 rounds per minute) with 240 rounds. The larger weapon required an enlarged opening, creating a distinctive asymmetric appearance to the top of the cowling, and a revised gas outlet near the windscreen. In addition, each wing cannon received a fairing at the wing leading edge. A plate of armored glass thick was fitted to the windscreen. A larger propeller spinner was fitted, suggesting a change to the propeller. The type of ventral drop tank was changed, it now had fins and was suspended on a slanted pipe. The first of this variant was completed in April 1944 and it was produced until October 1944. A6M5c, Model (Hei, 52c) – Armament change: One 13.2 mm (.51 in) Type 3 machine gun was added in each wing outboard of the cannon, and the 7.7 mm gun on the left side of the cowl was deleted. Four racks for rockets or small bombs were installed outboard of the 13 mm gun in each wing. Engine change: Some sources state that the hei had a Sakae 31 engine In addition, a thick piece of armored glass was installed at the headrest and an thick plate of armor was installed behind the seat. The mounting of the central drop tank changed to a four-post design. Wing skin was thickened further. The first of this variant was completed in September 1944. Because of the gain in weight, this variant was used mainly for intercepting B-29s and special attack. A6M5-S (A6M5 Yakan Sentōki) – Armament change: To intercept B-29s and other night-flying aircraft, an air arsenal converted some Model 52s to night fighters. They were armed with one 20 mm Type 99 cannon behind the pilot, aimed upward, similar in intent to the Luftwaffe's Schräge Musik installation. However, lack of radar prevented them from being very effective. Some Model 21 and 52 aircraft were converted to "bakusen" (fighter-bombers) by mounting a bomb rack and bomb in place of the centerline drop tank. Perhaps seven Model 52 planes were ostensibly converted into A6M5-K two-seat trainers. Mass production was contemplated by Hitachi, but not undertaken. A6M6 Type 0 Model 53 The A6M6 was developed to use the Sakae 31a engine, featuring water-methanol engine boost and self-sealing wing tanks. During preliminary testing, its performance was considered unsatisfactory due to the additional engine power failing to materialize and the unreliability of the fuel injection system. Testing continued on the A6M6 but the end of war stopped further development. Only one prototype was produced. A6M7 Type 0 Model 62/63 The A6M7 was the last variant to see service. It was designed to meet a requirement by the Navy for a dedicated attack/dive bomber version that could operate from smaller aircraft carriers or according to another source, replace the obsolete Aichi D3A. The A6M7 had considerable design changes compared to previous attempts to make the A6M suitable for dive bombing. This included a reinforced vertical stabilizer, a special bomb rack, provision of two 350-litre drop tanks and fixed bomb/rocket swing stoppers on the underside of the wings. It was also given a new powerplant, the Sakae-31 engine, producing 1,130 hp on take-off. The A6M7 had a similar armament layout to the A6M5c with the exception of the bomb centreline bomb rack, capable of carrying 250 kg or 500 kg bombs. Entering production in May 1945, the A6M7 was also used in the special attack role. A6M8 Type 0 Model 64 Similar to the A6M6 but with the Sakae (now out of production) replaced by the Mitsubishi Kinsei 62 engine with , 60% more powerful than the engine of the A6M2. This resulted in an extensively modified cowling and nose for the aircraft. The carburetor intake was much larger, a long duct like that on the Nakajima B6N Tenzan was added, and a large spinner — like that on the Yokosuka D4Y Suisei with the Kinsei 62 — was mounted. The armament consisted of two 13.2 mm (.52 in) Type 3 machine guns and two 20 mm (.80 in) Type 99 cannons in the wings. In addition, the Model 64 was modified to carry two drop tanks on either wing in order to permit the mounting of a bomb on the underside of the fuselage. Two prototypes were completed in April 1945 but the chaotic situation of Japanese industry and the end of the war obstructed the start of the ambitious program of production for 6,300 A6M8s, only the two prototypes being completed and flown. Production Not included: A second A6M1 was completed on 17 March 1939, but was written off without explanation after completing the company's flight test program in July 1940. Trainer Total production According to USSBS Report: 10,934 includes: 10,094 A6M, 323 A6M2-N and 517 A6M-K builds. According to Francillon: 11,291 includes: 10,449 A6M, 327 A6M2-N, 508 A6M2-K and 7 A6M5-K builds. Operators Imperial Japanese Navy Air Service Surviving aircraft Like many surviving World War II Japanese aircraft, most surviving Zeros are made up of parts from multiple airframes. As a result, some are referred to by conflicting manufacturer serial numbers. In other cases, such as those recovered after decades in a wrecked condition, they have been reconstructed to the point that the majority of their structure is made up of modern parts. All of this means the identities of survivors can be difficult to confirm. Most flying Zeros have had their engines replaced with similar American units. Only one, the Planes of Fame Museum's A6M5, has the original Sakae engine. The rarity of flyable Zeros accounts for the use of single-seat North American T-6 Texans, with heavily modified fuselages and painted in Japanese markings, as substitutes for Zeros in the films Tora! Tora! Tora!, The Final Countdown, and many other television and film depictions of the aircraft, such as Baa Baa Black Sheep (renamed Black Sheep Squadron). One Model 52 was used during the production of Pearl Harbor. Australia 840 – On display at the Australian Aviation Heritage Centre in Winnellie, Northern Territory. Wreckage of the forward fuselage, inboard wings, engine, and propeller. 5784 – On display at the Australian War Memorial in Canberra, Australian Capital Territory. A restored A6M2-21 "V-173" was retrieved as a wreck after the war and later found to have been flown by Saburō Sakai at Lae. China Unknown serial number – Beijing Military Museum Germany Replica – On display at the Technik Museum Speyer in Speyer, Rhineland-Palatinate. Replica of the fuselage section on display at IWM London. Indonesia Unknown serial number – The Dirgantara Mandala Museum in Yogyakarta has an A6M in its collection. Japan 1493 – On display at the Kawaguchiko Motor Museum in Fujikawaguchiko, Yamanashi. 4168/4240/4241 – On display at the Yūshūkan in Chiyoda, Tokyo. 4685 – On display at Hamamatsu Air Base in Hamamatsu, Shizuoka. 4708 – On display at the Mitsubishi Heavy Industries Museum in Komaki, Aichi. 31870 – A two-seater on display at the National Museum of Nature and Science in Taito, Tokyo. 62343 – On display at the Chiran Peace Museum for Kamikaze Pilots in Chiran, Kagoshima. 82729 – On display at the Yamato Museum in Kure, Hiroshima. 91518 – On display at the Kawaguchiko Motor Museum in Fujikawaguchiko, Yamanashi. 92717 – On display at the Kawaguchiko Motor Museum in Fujikawaguchiko, Yamanashi. Replica – On display at MCAS Iwakuni in Iwakuni, Yamaguchi. New Zealand 3835/3844 – On display at the Auckland War Memorial Museum in Auckland, Auckland Region. It was brought to New Zealand from Bougainville in October 1945 on board the ferry Wahine which was being used to repatriate troops. The Zero had been caught on the ground on Bougainville, damaged in the bombing during the Allied Bougainville campaign in November 1943. The plane had been hidden by the Japanese who had restored it with the goal of flying it off the island. The plane was retrieved by RNZAF intelligence officers in September 1945 at the Japanese airfield at Buin, in southern Bougainville. United Kingdom 196 – On display at the Imperial War Museum London in London, Greater London. Forward fuselage displayed. 3685 – On display at the Imperial War Museum Duxford in Duxford, Cambridgeshire. Fuselage displayed in unrestored condition. United States 1303 – In storage at the Flying Heritage Collection in Everett, Washington. 3618 – In storage at Fantasy of Flight in Polk City, Florida. 4043 – In storage at Fantasy of Flight in Polk City, Florida. Along with several other Zeros, this aircraft was recovered by the Australian War Memorial Museum in the early 1970s from Rabaul in the South Pacific. The markings suggest that it was in service after June 1943 and further investigation suggests that it has cockpit features associated with the Nakajima-built Model 52b. If this is correct, it is most likely one of the 123 aircraft lost by the Japanese during the assault of Rabaul. The aircraft was shipped in pieces to the attraction and it was eventually made up for display as a crashed aircraft. Much of the aircraft is usable for patterns and some of its parts can be restored to one day make this a basis for a flyable aircraft. 4340 – On display at the National Air and Space Museum in Washington, D.C. 4400 – In storage at the Flying Heritage Collection in Everett, Washington. 5356/5451 – On display at the Pacific Aviation Museum in Honolulu, Hawaii. This aircraft was formerly flown by the Commemorative Air Force after being restored by Robert Diemert. 5357 – Owned by the Planes of Fame Air Museum in Chino, California. This aircraft, 61-120, is the only airworthy example powered with an original Sakae radial engine. 5450 – On display at the National Naval Aviation Museum at NAS Pensacola in Pensacola, Florida. 23186 – On display at the San Diego Air and Space Museum in San Diego, California. This aircraft is on loan from the National Air and Space Museum. The museum previously had another Zero in its collection, msn 4323, but it was destroyed in a fire on 22 February 1978. 51553 – On display at the National Museum of the United States Air Force at Wright-Patterson AFB in Dayton, Ohio. It was restored by Century Aviation. Replica – Owned by Warren Pietsch at the Texas Flying Legends Museum in Houston, Texas. This aircraft, known as the "Blayd" Zero, is a reconstruction based on templating original Zero components recovered from the South Pacific. To be considered a "restoration" and not a reproduction, the builders used a small fraction of parts from the original Zero landing gear in the reconstruction. It was built as an A6M2 Model 21. This aircraft was damaged in a ground accident on 15 March 2016, when a Goodyear FG-1D Corsair taxiing behind it overran the tail of the Zero, with the Corsair's propeller shredding roughly the last third of the Zero's fuselage and its control surfaces. Replica (3869) – Owned by the Southern California Wing of the Commemorative Air Force in Camarillo, California. This aircraft is an A6M3 that was recovered from Babo Airfield, Indonesia, in 1991. It was partially restored from several A6M3s in Russia, then brought to the United States for restoration. The aircraft was re-registered in 1998 and displayed at the Museum of Flying in Santa Monica, California. It uses a Pratt & Whitney R-1830-75 engine. Replica (3852) – Owned by the Flying Heritage Collection in Everett, Washington. This aircraft was recovered from Babo Airfield, Indonesia, and restored – first in Russia, then in California, and finally in Washington state – before being delivered to the Flying Heritage Collection. It has a P&W engine installed. Replica (3858) – Fagen Fighters WWII Museum, Granite Falls, Minnesota. Formerly owned by businessman Masahide Ishizuka in Kanoya, Kagoshima. Pratt & Whitney R-1830 engine. Replica – Under rebuild by Legend Flyers in Everett, Washington. This aircraft uses a small amount of parts from 3148. Specifications (A6M2 (Type 0 Model 21)) Notable appearances in media See also References Notes Citations Bibliography Angelucci, Enzo and Peter M. Bowers. The American Fighter. Sparkford, UK: Haynes Publishing, 1987. . Fernandez, Ronald. Excess Profits: The Rise of United Technologies. Boston: Addison-Wesley, 1983. . Ford, Douglas. "Informing Airmen? The U.S. Army Air Forces' Intelligence on Japanese Fighter Tactics in the Pacific Theatre, 1941–5," International History Review 34 (Dec. 2012), 725–52. Francillon, R.J. Japanese Aircraft of the Pacific War. London: Putnam, 1970, . Glancey, Jonathan. Spitfire: The Illustrated Biography. London: Atlantic Books, 2006. . Green, William and Gordon Swanborough. The Great Book of Fighters. St. Paul, Minnesota: MBI Publishing, 2001. . Gunston, Bill. Aircraft of World War 2. London: Octopus Books Limited, 1980. . Holmes, Tony, ed. Dogfight, The Greatest Air Duels of World War II. Oxford, UK: Osprey Publishing, 2011. . Jablonski, Edward. Airwar. New York: Doubleday & Co., 1979. . James, Derek N. Gloster Aircraft since 1917. London: Putnam and Company Ltd., 1987. . Lundstrom, John B. The First Team and the Guadalcanal Campaign. Annapolis, Maryland: Naval Institute Press, 1994. . Matricardi, Paolo. Aerei Militari. Caccia e Ricognitori (in Italian). Milan: Mondadori Electa, 2006. Mikesh, Robert C. Warbird History: Zero, Combat & Development History of Japan's Legendary Mitsubishi A6M Zero Fighter. St. Paul, Minnesota: Motorbooks International, 1994. . Mikesh, Robert C. Zero Fighter. New York: Crown Publishers, Inc., 1981; copyright Zokeisha Publications, Tokyo. . Okumiya, Masatake and Jiro Horikoshi, with Martin Caidin. Zero! New York: E.P. Dutton & Co., 1956. Nijboer, Donald. Seafire Vs A6M Zero: Pacific Theatre. Oxford, UK: Osprey Publishing, 2009. . Nohara, Shigeru. Aero Detail 7: Mitsubishi A6M Zero Fighter. Tokyo: Dai-Nippon Kaiga Co. Ltd, 1993. . Parshall, Jonathan and Anthony Tully. Shattered Sword: The Untold Story of the Battle of Midway. Washington, D.C.: Potomac Books Inc., 2007. (paperback). "Plane Facts: Zero-sen ancestry". Air International, October 1973, Vol 3 No 4. pp. 199–200. Smith, Peter C.Mitsubishi Zero: Japan's Legendary Fighter. Barnsley, South Yorkshire, UK: Pen & Sword Books, 2015. . Spick, Mike. Allied Fighter Aces of World War II. London: Greenhill Books, 1997. . Stille, Mark. Guadalcanal 1942–43: Japan's bid to knock out Henderson Field and the Cactus Air Force (Air Campaign). Osprey Publishing, 2019. . Thompson, J. Steve with Peter C. Smith. Air Combat Manoeuvres: The Technique and History of Air Fighting for Flight Simulation. Hersham, Surrey, UK: Ian Allan Publishing, 2008. . Thruelsen, Richard. The Grumman Story. Praeger Press, 1976. . Tillman, Barrett. Hellcat: The F6F in World War II. Naval Institute Press, 1979. . United States Strategic Bombing Survey Aircraft Division. Mitsubishi Heavy Industries, Ltd. Corporation Report I, Washington, D.C. 1947. United States Strategic Bombing Survey Aircraft Division. Nakajima Aircraft Company, Ltd. Corporation Report II, Washington, D.C. 1947. United States Strategic Bombing Survey Aircraft Division. Hitachi Aircraft Company, Ltd. Corporation Report VII, Washington, D.C. 1947. United States Strategic Bombing Survey Aircraft Division. Army Air Arsenal and Navy Air Depots Corporation Report XIX, Washington, D.C. 1947. Wilcox, Richard. "The Zero: The first famed Japanese fighter captured intact reveals its secrets to U.S. Navy aerial experts". Life, 4 November 1942. Willmott, H.P. Zero A6M. London: Bison Books, 1980. . Yoshimura, Akira, translated by Retsu Kaiho and Michael Gregson. Zero Fighter. Westport, Connecticut: Praeger Publishers, 1996. . Young, Edward M. F4F Wildcat vs A6M Zero-sen. Oxford, UK: Osprey, 2013. . Further reading Bueschel, Richard M. Mitsubishi A6M1/2/-2N Zero-Sen in Imperial Japanese Naval Air Service. Canterbury, Kent, UK: Osprey Publications Ltd., 1970. . Francillon, René J. The Mitsubishi A6M2 Zero-Sen (Aircraft in Profile number 129). Leatherhead, Surrey, UK: Profile Publications Ltd., 1966. Francillon, René J. The Mitsubishi A6M3 Zero-Sen ("Hamp") (Aircraft in Profile number 190). Leatherhead, Surrey, UK: Profile Publications Ltd., 1967. Jackson, Robert. Combat Legend: Mitsubishi Zero. Ramsbury, Marlborough, Wiltshire, UK: Airlife Publishing, 2003. . Juszczak, Artur. Mitsubishi A6M Zero. Tarnobrzeg, Poland/Redbourn, UK: Mushroom Model Publications, 2001. . Kinzey, Bert. Attack on Pearl Harbor: Japan awakens a Sleeping Giant. Blacksburg, Virginia, USA: Military Aviation Archives, 2010. . Marchand, Patrick and Junko Takamori. (Illustrator). A6M Zero (Les Ailes de Gloire 2) (in French). Le Muy, France: Editions d’Along, 2000. . Mikesh, Robert C. and Rikyu Watanabe (Illustrator). Zero Fighter. London: Jane's Publishing Company Ltd., 1981. . Nohara, Shigeru. A6M Zero in Action (Aircraft #59). Carrollton, Texas, USA: Squadron/Signal Publications, Inc., 1983. . Nohara, Shigeru. Mitsubishi A6M Zero Fighter (Aero Detail 7) (in Japanese with English captions). Tokyo, Japan: Dai Nippon Kaiga Company Ltd., 1993. . Okumiya, Masatake and Jiro Horikoshi (with Martin Caidin, ed.). Zero! The Story of Japan's Air War in the Pacific: 1941–45. New York: Ballantine Books, 1956. No ISBN. "Plane Facts: Zero-sen ancestry". Air International, Vol. 3, No. 4, October 1973, pp. 199–200. Richards, M.C. and Donald S. Smith. Mitsubishi A6M5 to A6M8 'Zero-Sen' ('Zeke 52')(Aircraft in Profile number 236). Windsor, Berkshire, UK: Profile Publications Ltd., 1972. Sakaida, Henry. Imperial Japanese Navy Aces, 1937–45. Botley, Oxford, UK: Osprey Publishing Ltd., 1998. . Sakaida, Henry. The Siege of Rabaul. St. Paul, Minnesota: Phalanx Publishing, 1996. . Sheftall, M.G. Blossoms in the Wind: Human Legacies of the Kamikaze. New York: NAL Caliber, 2005. . Wilson, Stewart. Zero, Hurricane & P-38, The Story of Three Classic Fighters of WW2 (Legends of the Air 4). Fyshwick, Australia: Aerospace Publications Pty Ltd., 1996. . External links Tour A6M5 Zero cockpit Mitsubishi A6M Zero Japanese fighter aircraft—design, construction, history WW2DB: A6M Zero www.j-aircraft.com: Quotes A6M Mitsubishi A6M Reisen (Zero Fighter), Joao Paulo Julião Matsuura Mitsubishi A6M2-K and A6M5-K, Joao Paulo Julião Matsuura Nakajima A6M2-N, Joao Paulo Julião Matsuura War Prize: The Capture of the First Japanese Zero Fighter in 1941 Video links Mitsubishi A6M Zero 1930s Japanese fighter aircraft Mitsubishi aircraft Attack on Pearl Harbor World War II Japanese fighter aircraft Articles containing video clips Single-engined tractor aircraft Low-wing aircraft Aircraft first flown in 1939 Retractable conventional landing gear

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https://en.wikipedia.org/wiki/May%2027

May 27

Events Pre-1600 1096 – Count Emicho enters Mainz, where his followers massacre Jewish citizens. At least 600 Jews are killed. 1120 – Richard III of Capua is anointed as Prince two weeks before his untimely death. 1153 – Malcolm IV becomes King of Scotland. 1199 – John is crowned King of England. 1257 – Richard of Cornwall, and his wife, Sanchia of Provence, are crowned King and Queen of the Germans at Aachen Cathedral. 1601–1900 1644 – Manchu regent Dorgon defeats rebel leader Li Zicheng of the Shun dynasty at the Battle of Shanhai Pass, allowing the Manchus to enter and conquer the capital city of Beijing. 1703 – Tsar Peter the Great founds the city of Saint Petersburg. 1798 – The Battle of Oulart Hill takes place in Wexford, Ireland; Irish rebel leaders defeat and kill a detachment of militia. 1799 – War of the Second Coalition: Austrian forces defeat the French at Winterthur, Switzerland. 1813 – War of 1812: In Canada, American forces capture Fort George. 1860 – Giuseppe Garibaldi begins his attack on Palermo, Sicily, as part of the Italian unification. 1863 – American Civil War: First Assault on the Confederate works at the Siege of Port Hudson. 1874 – The first group of Dorsland trekkers under the leadership of Gert Alberts leaves Pretoria. 1883 – Alexander III is crowned Tsar of Russia. 1896 – The F4-strength St. Louis–East St. Louis tornado hits in St. Louis, Missouri, and East St. Louis, Illinois, killing at least 255 people and causing over $10 million in damage. 1901–present 1905 – Russo-Japanese War: The Battle of Tsushima begins. 1915 – HMS Princess Irene explodes and sinks off Sheerness, Kent, with the loss of 352 lives. 1917 – Pope Benedict XV promulgates the 1917 Code of Canon Law, the first comprehensive codification of Catholic canon law in the legal history of the Catholic Church. 1919 – The NC-4 aircraft arrives in Lisbon after completing the first transatlantic flight. 1927 – The Ford Motor Company ceases manufacture of the Ford Model T and begins to retool plants to make the Ford Model A. 1930 – The Chrysler Building in New York City, the tallest man-made structure at the time, opens to the public. 1933 – New Deal: The U.S. Federal Securities Act is signed into law requiring the registration of securities with the Federal Trade Commission. 1933 – The Walt Disney Company releases the cartoon Three Little Pigs, with its hit song "Who's Afraid of the Big Bad Wolf?" 1935 – New Deal: The Supreme Court of the United States declares the National Industrial Recovery Act to be unconstitutional in A.L.A. Schechter Poultry Corp. v. United States, (295 U.S. 495). 1937 – In California, the Golden Gate Bridge opens to pedestrian traffic, creating a vital link between San Francisco and Marin County, California. 1940 – World War II: In the Le Paradis massacre, 99 soldiers from a Royal Norfolk Regiment unit are shot after surrendering to German troops; two survive. 1941 – World War II: U.S. President Franklin D. Roosevelt proclaims an "unlimited national emergency". 1941 – World War II: The is sunk in the North Atlantic, killing almost 2,100 men. 1942 – World War II: In Operation Anthropoid, Reinhard Heydrich is fatally wounded in Prague; he dies of his injuries eight days later. 1950 – The Linnanmäki amusement park is opened for the first time in Helsinki. 1958 – First flight of the McDonnell Douglas F-4 Phantom II. 1960 – In Turkey, a military coup removes President Celâl Bayar and the rest of the democratic government from office. 1962 – The Centralia mine fire is ignited in the town's landfill above a coal mine. 1965 – Vietnam War: American warships begin the first bombardment of National Liberation Front targets within South Vietnam. 1967 – Australians vote in favor of a constitutional referendum granting the Australian government the power to make laws to benefit Indigenous Australians and to count them in the national census. 1967 – The U.S. Navy aircraft carrier is launched by Jacqueline Kennedy and her daughter Caroline. 1971 – The Dahlerau train disaster, the worst railway accident in West Germany, kills 46 people and injures 25 near Wuppertal. 1971 – Pakistani forces massacre over 200 civilians, mostly Bengali Hindus, in the Bagbati massacre. 1975 – Dibbles Bridge coach crash near Grassington, in North Yorkshire, England, kills 33 – the highest ever death toll in a road accident in the United Kingdom. 1980 – The Gwangju Massacre: Airborne and army troops of South Korea retake the city of Gwangju from civil militias, killing at least 207 and possibly many more. 1984 – The Danube-Black Sea canal is opened, in a ceremony attended by the Ceaușescus. It had been under construction since the 1950s. 1988 – Somaliland War of Independence: Somali National Movement launches a major offensive against Somali government forces in Hargeisa and Burao, then second and third largest cities of Somalia. 1996 – First Chechen War: Russian President Boris Yeltsin meets with Chechnyan rebels for the first time and negotiates a cease-fire. 1997 – The 1997 Central Texas tornado outbreak occurs, spawning multiple tornadoes in Central Texas, including the F5 that killed 27 in Jarrell. 1998 – Oklahoma City bombing: Michael Fortier is sentenced to 12 years in prison and fined $200,000 for failing to warn authorities about the terrorist plot. 2001 – Members of the Islamist separatist group Abu Sayyaf seize twenty hostages from an affluent island resort on Palawan in the Philippines; the hostage crisis would not be resolved until June 2002. 2006 – The 6.4 Yogyakarta earthquake shakes central Java with an MSK intensity of VIII (Damaging), leaving more than 5,700 dead and 37,000 injured. 2016 – Barack Obama is the first president of United States to visit Hiroshima Peace Memorial Park and meet Hibakusha. 2017 – Andrew Scheer takes over after Rona Ambrose as the leader of the Conservative Party of Canada. 2018 – Maryland Flood Event: A flood occurs throughout the Patapsco Valley, causing one death, destroying the entire first floors of buildings on Main Street in Ellicott City, and causing cars to overturn. Births Pre-1600 742 – Emperor Dezong of Tang (d. 805) 1332 – Ibn Khaldun, Tunisian historian and theologian (d. 1406) 1378 – Zhu Quan, Chinese military commander, historian and playwright (d. 1448) 1519 – Girolamo Mei, Italian historian and theorist (d. 1594) 1537 – Louis IV, Landgrave of Hesse-Marburg (d. 1604) 1576 – Caspar Schoppe, German author and scholar (d. 1649) 1584 – Michael Altenburg, German theologian and composer (d. 1640) 1601–1900 1601 – Antoine Daniel, French-Canadian missionary and saint (d. 1648) 1626 – William II, Prince of Orange (d. 1650) 1627 – Anne Marie Louise d'Orléans, Duchess of Montpensier (d. 1693) 1651 – Louis Antoine de Noailles, French cardinal (d. 1729) 1652 – Elizabeth Charlotte, Princess Palatine of Germany (d. 1722) 1738 – Nathaniel Gorham, American merchant and politician, 14th President of the Continental Congress (d. 1796) 1756 – Maximilian I Joseph of Bavaria (d. 1825) 1774 – Francis Beaufort, Irish hydrographer and officer in the Royal Navy (d. 1857) 1794 – Cornelius Vanderbilt, American businessman and philanthropist (d. 1877) 1814 – John Rudolph Niernsee, Viennese-born American architect (d.1885) 1815 – Henry Parkes, English-Australian politician, 7th Premier of New South Wales (d. 1896) 1818 – Amelia Bloomer, American journalist and activist (d. 1894) 1819 – Julia Ward Howe, American poet and songwriter (d. 1910) 1827 – Samuel F. Miller, American lawyer and politician (d. 1892) 1832 – Zenas Ferry Moody, American surveyor and politician, 7th Governor of Oregon (d. 1917) 1836 – Jay Gould, American businessman and financier (d. 1892) 1837 – Wild Bill Hickok, American police officer (d. 1876) 1852 – Billy Barnes, English cricketer (d. 1899) 1857 – Theodor Curtius, German chemist (d. 1928) 1860 – Manuel Teixeira Gomes, Portuguese politician, 7th President of Portugal (d. 1941) 1863 – Arthur Mold, English cricketer (d. 1921) 1867 – Arnold Bennett, English author and playwright (d. 1931) 1868 – Aleksa Šantić, Bosnian poet and author (d. 1924) 1871 – Georges Rouault, French painter and illustrator (d. 1958) 1875 – Frederick Cuming, English cricketer (d. 1942) 1876 – Ferdynand Antoni Ossendowski, Polish journalist and author (d. 1945) 1876 – William Stanier, English engineer (d. 1965) 1878 – Anna Cervin, Swedish artist (d. 1972) 1879 – Karl Bühler, German-American linguist and psychologist (d. 1963) 1879 – Hans Lammers, German judge and politician (d. 1962) 1883 – Jessie Arms Botke, American painter (d. 1971) 1884 – Max Brod, Czech journalist, author, and composer (d. 1968) 1887 – Frank Woolley, English cricketer (d. 1978) 1888 – Louis Durey, French composer (d. 1979) 1891 – Claude Champagne, Canadian violinist, pianist, and composer (d. 1965) 1891 – Jaan Kärner, Estonian poet and author (d. 1958) 1894 – Louis-Ferdinand Céline, French physician and author (d. 1961) 1894 – Dashiell Hammett, American detective novelist and screenwriter (d. 1961) 1895 – Douglas Lloyd Campbell, Canadian educator and politician, 13th Premier of Manitoba (d. 1995) 1897 – John Cockcroft, English physicist and academic, Nobel Prize laureate (d. 1967) 1897 – Dink Templeton, American rugby player and coach (d. 1962) 1898 – David Crosthwait, American engineer, inventor and writer (d. 1976) 1899 – Johannes Türn, Estonian chess and draughts player (d. 1993) 1900 – Lotte Toberentz, German overseer of the Nazi Uckermark concentration camp (d. 1964) 1900 – Uładzimir Žyłka, Belarusian poet and translator (d. 1933) 1901–present 1904 – Chūhei Nambu, Japanese jumper and journalist (d. 1997) 1906 – Buddhadasa, Thai monk and philosopher (d. 1993) 1906 – Harry Hibbs, English footballer (d. 1984) 1906 – Antonio Rosario Mennonna, Italian bishop (d. 2009) 1907 – Nicolas Calas, Greek-American poet and critic (d. 1988) 1907 – Rachel Carson, American biologist, environmentalist, and author (d. 1964) 1909 – Dolores Hope, American singer and philanthropist (d. 2011) 1911 – Hubert Humphrey, American journalist and politician, 38th Vice President of the United States (d. 1978) 1911 – Teddy Kollek, Hungarian-Israeli politician, Mayor of Jerusalem (d. 2007) 1911 – Vincent Price, American actor (d. 1993) 1912 – John Cheever, American novelist and short story writer (d. 1982) 1912 – Sam Snead, American golfer and sportscaster (d. 2002) 1912 – Terry Moore, American baseball player, coach, and manager (d. 1995) 1915 – Ester Soré, Chilean singer-songwriter (d. 1996) 1915 – Herman Wouk, American novelist (d. 2019) 1917 – Harry Webster, English engineer (d. 2007) 1918 – Yasuhiro Nakasone, Japanese commander and politician, 45th Prime Minister of Japan (d. 2019) 1921 – Bob Godfrey, Australian-English animator, director, and voice actor (d. 2013) 1922 – Otto Carius, German lieutenant and pharmacist (d. 2015) 1922 – Christopher Lee, English actor (d. 2015) 1922 – John D. Vanderhoof, American banker and politician, 37th Governor of Colorado (d. 2013) 1923 – Henry Kissinger, German-American political scientist and politician, 56th United States Secretary of State, Nobel Prize laureate 1923 – Sumner Redstone, American businessman and philanthropist (d. 2020) 1924 – Jaime Lusinchi, Venezuelan physician and politician, President of Venezuela (d. 2014) 1924 – John Sumner, English-Australian director, founded the Melbourne Theatre Company (d. 2013) 1925 – Tony Hillerman, American journalist and author (d. 2008) 1927 – Jüri Randviir, Estonian chess player and journalist (d. 1996) 1928 – Thea Musgrave, Scottish-American composer and educator 1930 – John Barth, American novelist and short story writer 1930 – William S. Sessions, American civil servant and judge, 8th Director of the Federal Bureau of Investigation (d. 2020) 1930 – Eino Tamberg, Estonian composer and educator (d. 2010) 1931 – André Barbeau, French-Canadian neurologist (d. 1986) 1931 – John Chapple, English field marshal and politician, Governor of Gibraltar 1931 – Bernard Fresson, French actor (d. 2002) 1931 – Faten Hamama, Egyptian actress and producer (d. 2015) 1931 – Philip Kotler, American author and professor 1933 – Edward Samuel Rogers, Canadian businessman (d. 2008) 1933 – Manfred Sommer, Spanish author and illustrator (d. 2007) 1934 – Ray Daviault, Canadian-American baseball player (d. 2020) 1934 – Harlan Ellison, American author and screenwriter (d. 2018) 1935 – Daniel Colchico, American football player and coach (d. 2014) 1935 – Mal Evans, British road manager of The Beatles (d. 1976) 1935 – Jerry Kindall, American baseball player and coach (d. 2017) 1935 – Ramsey Lewis, American jazz pianist and composer 1935 – Lee Meriwether, American model and actress, Miss America 1955 1936 – Benjamin Bathurst, English admiral 1936 – Louis Gossett, Jr., American actor and producer 1936 – Marcel Masse, Canadian educator and politician, 29th Canadian Minister of National Defence (d. 2014) 1937 – Allan Carr, American playwright and producer (d. 1999) 1939 – Simon Cairns, 6th Earl Cairns, English courtier and businessman 1939 – Yves Duhaime, Canadian captain and politician 1939 – Sokratis Kokkalis, Greek businessman 1939 – Gerald Ronson, English businessman and philanthropist 1939 – Lionel Sosa, Mexican-American advertising and marketing executive 1939 – Don Williams, American singer-songwriter and guitarist (d. 2017) 1940 – Mike Gibson, Australian journalist and sportscaster (d. 2015) 1942 – Lee Baca, American police officer 1942 – Piers Courage, English racing driver (d. 1970) 1942 – Roger Freeman, Baron Freeman, English accountant and politician, Chancellor of the Duchy of Lancaster 1942 – Robin Widdows, English racing driver 1943 – Cilla Black, English singer and actress (d. 2015) 1943 – Bruce Weitz, American actor 1944 – Christopher Dodd, American lawyer and politician 1944 – Ingrid Roscoe, English historian and politician, Lord Lieutenant of West Yorkshire (d. 2020) 1944 – Alain Souchon, French singer-songwriter, guitarist, and actor 1945 – Bruce Cockburn, Canadian singer-songwriter and guitarist 1946 – Niels-Henning Ørsted Pedersen, Danish bassist and composer (d. 2005) 1946 – John Williams, English motorcycle racer (d. 1978) 1947 – Peter DeFazio, American politician 1947 – Marty Kristian, German-Australian singer-songwriter, guitarist, and actor 1947 – Branko Oblak, Slovenian footballer and coach 1947 – Riivo Sinijärv, Estonian politician, 19th Estonian Minister of Foreign Affairs 1948 – Wubbo de Boer, Dutch civil servant (d. 2017) 1948 – Pete Sears, English bass player 1948 – Morning Glory Zell-Ravenheart, American occultist and author (d. 2014) 1949 – Hugh Lowther, 8th Earl of Lonsdale, English politician 1949 – Christa Vahlensieck, German runner 1950 – Dee Dee Bridgewater, American singer-songwriter and actress 1950 – Makis Dendrinos, Greek basketball player and coach (d. 2015) 1951 – John Conteh, English boxer 1954 – Pauline Hanson, Australian businesswoman, activist, and politician 1954 – Jackie Slater, American football player and coach 1955 – Eric Bischoff, American wrestler, manager, and producer 1955 – Richard Schiff, American actor, director, and producer 1955 – Ian Tracey, English organist and conductor 1956 – Cynthia McFadden, American journalist 1956 – Rosemary Squire, English producer and manager, co-founded Ambassador Theatre Group 1956 – Giuseppe Tornatore, Italian director and screenwriter 1957 – Dag Terje Andersen, Norwegian politician, Norwegian Minister of Labour 1957 – Nitin Gadkari, Indian lawyer and politician, Indian Minister of Transport 1957 – Eddie Harsch, Canadian-American keyboard player and bass player (d. 2016) 1957 – Siouxsie Sioux, English singer-songwriter, musician, and producer 1958 – Nick Anstee, English accountant and politician, 682nd Lord Mayor of London 1958 – Neil Finn, New Zealand singer-songwriter and musician 1958 – Jesse Robredo, Filipino politician, 23rd Filipino Secretary of the Interior (d. 2012) 1960 – Gaston Therrien, Canadian ice hockey player and sportscaster 1961 – José Luíz Barbosa, Brazilian runner and coach 1961 – Peri Gilpin, American actress 1962 – Marcelino Bernal, Mexican footballer 1962 – Ray Borner, Australian basketball player 1962 – Steven Brill, American actor, director, producer, and screenwriter 1962 – Anthony A. Hyman, Israeli-English biologist and academic 1962 – David Mundell, Scottish lawyer and politician, Secretary of State for Scotland 1962 – Ravi Shastri, Indian cricketer and sportscaster 1963 – Gonzalo Rubalcaba, Cuban pianist and composer 1963 – Maria Walliser, Swiss skier 1964 – Adam Carolla, American actor, producer, and screenwriter 1965 – Pat Cash, Australian-English tennis player and sportscaster 1966 – Heston Blumenthal, English chef and author 1967 – Paul Gascoigne, English international footballer, coach, and manager 1967 – Eddie McClintock, American actor 1968 – Jeff Bagwell, American baseball player and coach 1968 – Rebekah Brooks, English journalist 1968 – Harun Erdenay, Turkish basketball player and coach 1968 – Frank Thomas, American baseball player and sportscaster 1969 – Todd Hundley, American baseball player 1969 – Jeremy Mayfield, American race car driver 1969 – Craig Federighi, American computer scientist and engineer 1970 – Michele Bartoli, Italian cyclist 1970 – Tim Farron, English educator and politician 1970 – Joseph Fiennes, English actor 1970 – Alex Archer, American-born Australian musician 1971 – Mathew Batsiua, Nauruan politician 1971 – Paul Bettany, English actor 1971 – Wayne Carey, Australian footballer and coach 1971 – Kaur Kender, Estonian author 1971 – Lisa Lopes, American rapper and dancer (d. 2002) 1971 – Lee Sharpe, English footballer 1971 – Grant Stafford, South African tennis player 1971 – Sophie Walker, British politician, leader of the Women's Equality Party 1971 – Petroc Trelawny, British radio and television broadcaster 1972 – Todd Demsey, American golfer 1972 – Antonio Freeman, American football player 1972 – Maxim Sokolov, Russian ice hockey player 1973 – Jack McBrayer, American actor and comedian 1973 – Tana Umaga, New Zealand rugby player and coach 1973 – Yorgos Lanthimos, Greek film video, and theatre director, producer and screenwriter 1974 – Skye Edwards, British singer-songwriter 1974 – Denise van Outen, English actress, singer, and television host 1974 – Derek Webb, American singer-songwriter and guitarist 1974 – Danny Wuerffel, American football player 1975 – André 3000, American rapper 1975 – Michael Hussey, Australian cricketer 1975 – Jamie Oliver, English chef and author 1975 – Feryal Özel, Turkish astrophysicist, astronomer, and academic 1976 – Marcel Fässler, Swiss racing driver 1977 – Abderrahmane Hammad, Algerian high jumper 1977 – Mahela Jayawardene, Sri Lankan cricketer 1978 – Adin Brown, American soccer player 1979 – Michael Buonauro, American author and illustrator (d. 2004) 1979 – Mile Sterjovski, Australian footballer 1980 – Craig Buntin, Canadian figure skater 1981 – Alina Cojocaru, Romanian ballerina 1981 – Johan Elmander, Swedish footballer 1982 – Natalya, Canadian professional wrestler 1984 – Blake Ahearn, American basketball player 1984 – Miguel González, Mexican baseball pitcher 1985 – Chiang Chien-ming, Taiwanese baseball player 1985 – Roberto Soldado, Spanish footballer 1986 – Conor Cummins, Manx motorcycle racer 1986 – Bamba Fall, Senegalese basketball player 1986 – Lasse Schöne, Danish footballer 1987 – Gervinho, Ivorian footballer 1987 – Bella Heathcote, Australian actress 1987 – Bora Paçun, Turkish basketball player 1987 – Matt Prior, Australian rugby league player 1987 – Martina Sablikova, Czech speed skater and cyclist 1988 – Vontae Davis, American football player 1988 – Irina Davydova, Russian hurdler 1988 – Garrett Richards, American baseball pitcher 1988 – Tyler Sash, American football player (d. 2015) 1989 – Igor Morozov, Estonian footballer 1989 – Peakboy, South Korean rapper, record producer, and singer-songwriter 1990 – Yenew Alamirew, Ethiopian runner 1990 – Chris Colfer, American actor and singer 1990 – Marcus Kruger, Swedish ice hockey player 1991 – Sebastien Dewaest, Belgian footballer 1991 – Tim Lafai, Samoan rugby league player 1991 – Ksenia Pervak, Russian tennis player 1991 – Eneli Vals, Estonian footballer 1992 – Aaron Brown, Canadian sprinter 1992 – Laurence Vincent-Lapointe, Canadian canoer Deaths Pre-1600 366 – Procopius, Roman usurper (b. 325) 398 – Murong Bao, emperor of the Xianbei state Later Yan (b. 355) 475 – Eutropius, bishop of Orange 866 – Ordoño I of Asturias (b. 831) 927 – Simeon I of Bulgaria first Bulgarian Emperor (b. 864) 1039 – Dirk III, Count of Holland (b. 981) 1045 – Bruno of Würzburg, imperial chancellor of Italy (b. c. 1005) 1178 – Godfrey van Rhenen, bishop of Utrecht 1240 – William de Warenne, 5th Earl of Surrey (b. 1166) 1444 – John Beaufort, 1st Duke of Somerset, English commander (b. 1404) 1508 – Ludovico Sforza, Duke of Milan (b. 1452) 1508 – Lucrezia Crivelli, mistress of Ludovico Sforza (b. 1452) 1525 – Thomas Müntzer, German mystic and theologian (b. 1488) 1541 – Margaret Pole, Countess of Salisbury (b. 1473) 1564 – John Calvin, French pastor and theologian (b. 1509) 1601–1900 1610 – François Ravaillac, French assassin of Henry IV of France (b. 1578) 1624 – Diego Ramírez de Arellano, Spanish sailor and cosmographer (b. c. 1580) 1637 – John Boteler, 1st Baron Boteler of Brantfield, English politician (b. c. 1566) 1661 – Archibald Campbell, 1st Marquess of Argyll, Scottish general and politician (b. 1607) 1675 – Gaspard Dughet, Italian-French painter (b. 1613) 1690 – Giovanni Legrenzi, Italian organist and composer (b. 1626) 1702 – Dominique Bouhours, French priest and critic (b. 1628) 1707 – Françoise-Athénaïs, marquise de Montespan, French mistress of Louis XIV of France (b. 1640) 1781 – Giovanni Battista Beccaria, Italian physicist and academic (b. 1716) 1797 – François-Noël Babeuf, French journalist (b. 1760) 1831 – Jedediah Smith, American hunter, explorer, and author (b. 1799) 1840 – Niccolò Paganini, Italian violinist and composer (b. 1782) 1867 – Thomas Bulfinch American mythologist (b. 1796) 1896 – Aleksandr Stoletov, Russian physicist, engineer, and academic (b. 1839) 1901–present 1910 – Robert Koch, German physician and microbiologist, Nobel Prize laureate (b. 1843) 1918 – Ōzutsu Man'emon, Japanese sumo wrestler, the 18th Yokozuna (b. 1869) 1919 – Kandukuri Veeresalingam, Indian author and activist (b. 1848) 1933 – Achille Paroche, French target shooter (b. 1868) 1939 – Joseph Roth, Austrian-French journalist and author (b. 1894) 1941 – Ernst Lindemann, German captain (b. 1894) 1941 – Günther Lütjens, German admiral (b. 1889) 1942 – Muhammed Hamdi Yazır, Turkish theologian, logician, and translator (b. 1878) 1943 – Gordon Coates, New Zealand soldier and politician, 21st Prime Minister of New Zealand (b. 1878) 1945 – Enno Lolling, German physician (b. 1888) 1947 – Ed Konetchy, American baseball player and manager (b. 1885) 1949 – Robert Ripley, American cartoonist, publisher, and businessman, founded Ripley's Believe It or Not! (b. 1890) 1953 – Jesse Burkett, American baseball player and manager (b. 1868) 1960 – James Montgomery Flagg, American painter and illustrator (b. 1877) 1963 – Grigoris Lambrakis, Greek physician and politician (b. 1912) 1964 – Jawaharlal Nehru, Indian lawyer and politician, 1st Prime Minister of India (b. 1889) 1967 – W. Otto Miessner, American composer and educator (b. 1880) 1967 – Ernst Niekisch, German academic and politician (b. 1889) 1969 – Jeffrey Hunter, American actor and producer (b. 1926) 1971 – Béla Juhos, Hungarian-Austrian philosopher from the Vienna Circle (b. 1901) 1971 – Armando Picchi, Italian footballer and coach (b. 1935) 1980 – Gün Sazak, Turkish agronomist and politician (b. 1932) 1984 – Vasilije Mokranjac, Serbian composer (b. 1923) 1986 – Ismail al-Faruqi, Palestinian-American philosopher and academic (b. 1921) 1986 – Ajoy Mukherjee, Indian politician, Chief Minister of West Bengal (b. 1901) 1986 – Giorgos Tzifos, Greek actor and cinematographer (b. 1918) 1987 – John Howard Northrop, American biochemist and academic, Nobel Prize laureate (b. 1891) 1988 – Hjördis Petterson, Swedish actress (b. 1908) 1988 – Ernst Ruska, German physicist and academic, Nobel Prize laureate (b. 1906) 1989 – Arseny Tarkovsky, Russian poet and translator (b. 1907) 1990 – Robert B. Meyner, American lawyer and politician, 44th Governor of New Jersey (b. 1908) 1991 – Leopold Nowak, Austrian musicologist and theorist (b. 1904) 1992 – Uncle Charlie Osborne, American fiddler (b. 1890) 1998 – Minoo Masani, Indian lawyer and politician (b. 1905) 2000 – Kazimierz Leski, Polish engineer and pilot (b. 1912) 2000 – Murray MacLehose, Baron MacLehose of Beoch, Scottish politician and diplomat, 25th Governor of Hong Kong (b. 1917) 2000 – Maurice Richard, Canadian ice hockey player and coach (b. 1921) 2002 – Marjorie Ogilvie Anderson, Scottish historian (b. 1909) 2003 – Luciano Berio, Italian composer and educator (b. 1925) 2006 – Rob Borsellino, American journalist (b. 1949) 2006 – Paul Gleason, American actor (b. 1939) 2006 – Craig Heyward, American football player (b. 1966) 2007 – Izumi Sakai, Japanese singer-songwriter (b. 1967) 2007 – Gretchen Wyler, American actress and dancer (b. 1932) 2007 – Ed Yost, American inventor, created the hot air balloon (b. 1919) 2008 – Franz Künstler, Hungarian soldier (b. 1900) 2009 – Thomas M. Franck, American lawyer and academic (b. 1931) 2009 – Clive Granger, Welsh-American economist and academic, Nobel Prize laureate (b. 1934) 2009 – Mona Grey, British nursing administrator; Northern Ireland's first Chief Nursing Officer 2009 – Abram Hoffer, Canadian biochemist, physician, and psychiatrist (b. 1917) 2009 – Gérard Jean-Juste, Haitian-American priest and theologian (b. 1946) 2009 – Carol Anne O'Marie, American nun and author (b. 1933) 2009 – William Refshauge, Australian soldier and physician (b. 1913) 2009 – Paul Sharratt, English-American television host (b. 1933) 2010 – Payut Ngaokrachang, Thai animator and director (b. 1929) 2011 – Jeff Conaway, American actor and singer (b. 1950) 2011 – Margo Dydek, Polish-American basketball player (b. 1974) 2011 – Gil Scott-Heron, American singer-songwriter and poet (b. 1949) 2012 – Simeon Daniel, Nevisian educator and politician, 1st Premier of Nevis (b. 1934) 2012 – Friedrich Hirzebruch, German mathematician and academic (b. 1927) 2012 – Anahit Perikhanian, Russian-born Armenian Iranologist (b. 1928) 2012 – David Rimoin, Canadian-American geneticist and academic (b. 1936) 2013 – Jagjit Singh Lyallpuri, Indian politician (b. 1917) 2013 – Bill Pertwee, English actor (b. 1926) 2013 – Abdoulaye Sékou Sow, Malian politician, Prime Minister of Mali (b. 1931) 2014 – Robert Genn, Canadian painter and author (b. 1936) 2014 – Helma Sanders-Brahms, German director, producer, and screenwriter (b. 1940) 2014 – Roberto Vargas, Puerto Rican-American baseball player, coach, and manager (b. 1929) 2014 – Massimo Vignelli, Italian-American graphic designer (b. 1931) 2015 – Erik Carlsson, Swedish rally driver (b. 1929) 2015 – Nils Christie, Norwegian sociologist, criminologist, and author (b. 1928) 2015 – Andy King, English footballer and manager (b. 1956) 2015 – Michael Martin, American philosopher and academic (b. 1932) 2017 – Gregg Allman, American musician, singer and songwriter (b. 1947) 2018 – Gardner Dozois, American science fiction author and editor (b. 1947) 2020 – Larry Kramer, American playwright, public health advocate and LGBT rights activist (b. 1935) 2021 – Poul Schlüter, former Prime Minister of Denmark (b. 1929) Holidays and observances Armed Forces Day (Nicaragua) Children's Day (Nigeria) Christian feast day: Augustine of Canterbury Blessed Lojze Grozde Bruno of Würzburg Eutropius of Orange Hildebert Julius the Veteran May 27 (Eastern Orthodox liturgics) Mother's Day (Bolivia) Navy Day (Japan) Slavery Abolition Day (Guadeloupe, Saint Barthélemy, Saint Martin) Start of National Reconciliation Week (Australia) References External links BBC: On This Day Historical Events on May 27 Today in Canadian History Days of the year May

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https://en.wikipedia.org/wiki/Monasticism

Monasticism

Monasticism (from Ancient Greek , , from , , 'alone'), or monkhood, is a religious way of life in which one renounces worldly pursuits to devote oneself fully to spiritual work. Monastic life plays an important role in many Christian churches, especially in the Catholic and Orthodox traditions as well as in other faiths such as Buddhism, Hinduism and Jainism. In other religions monasticism is criticized and not practiced, as in Islam and Zoroastrianism, or plays a marginal role, as in modern Judaism. Women pursuing a monastic life are generally called nuns, religious sisters or, rarely, canonesses, while monastic men are called monks, friars or brothers. Many monastics live in abbeys, convents, monasteries or priories to separate themselves from the secular world, unless they are in mendicant or missionary orders. Titles for monastics differ between the Christian denominations. In Roman Catholicism and Anglicanism, monks and nuns are addressed as Brother (or Father, if ordained to the priesthood) or Mother/Sister, while in Eastern Orthodoxy, they are addressed as Father or Mother. Buddhism The Sangha or community of ordained Buddhist bhikkhus ("beggar" or "one who lives by alms".) and original bhikkhunis (nuns) was founded by Gautama Buddha during his lifetime over 2500 years ago. This communal monastic lifestyle grew out of the lifestyle of earlier sects of wandering ascetics, some of whom the Buddha had studied under. It was initially fairly eremitic or reclusive in nature. Bhikkhus and bhikkunis were expected to live with a minimum of possessions, which were to be voluntarily provided by the lay community. Lay followers also provided the daily food that bhikkhus required, and provided shelter for bhikkhus when they needed it. After the Parinibbana (Final Passing) of the Buddha, the Buddhist monastic order developed into a primarily cenobitic or communal movement. The practice of living communally during the rainy vassa season, prescribed by the Buddha, gradually grew to encompass a settled monastic life centered on life in a community of practitioners. Most of the modern disciplinary rules followed by bhikkhus and bhikkhunis — as encoded in the Patimokkha — relate to such an existence, prescribing in great detail proper methods for living and relating in a community of bhikkhus or bhikkhunis. The number of rules observed varies with the order; Theravada bhikkhus follow around 227 rules, the Vinaya. There are a larger number of rules specified for bhikkhunis (nuns). The Buddhist monastic order consists of the male bhikkhu assembly and the female bhikkhuni assembly. Initially consisting only of males, it grew to include females after the Buddha's stepmother, Mahaprajapati, asked for and received permission to live as an ordained practitioner. Bhikkhus and bhikkhunis are expected to fulfill a variety of roles in the Buddhist community. First and foremost, they are expected to preserve the doctrine and discipline now known as Buddhism. They are also expected to provide a living example for the laity, and to serve as a "field of merit" for lay followers—providing laymen and women with the opportunity to earn merit by giving gifts and support to the bhikkhus. In return for the support of the laity, bhikkhus and bhikkhunis are expected to live an austere life focused on the study of Buddhist doctrine, the practice of meditation, and the observance of good moral character. A bhikkhu (the term in the Pali language) or bhikshu (in Sanskrit), first ordains as a Samanera (novice). Novices often ordain at a young age, but generally no younger than eight. Samaneras live according to the Ten Precepts, but are not responsible for living by the full set of monastic rules. Higher ordination, conferring the status of a full Bhikkhu, is given only to men who are aged 20 or older. Bhikkhunis follow a similar progression, but are required to live as Samaneras for longer periods of time- typically five years. The disciplinary regulations for bhikkhus and bhikkhunis are intended to create a life that is simple and focused, rather than one of deprivation or severe asceticism. However, celibacy is a fundamental part of this form of monastic discipline. Christianity Monasticism in Christianity, which provides the origins of the words "monk" and "monastery", comprises several diverse forms of religious living. It began to develop early in the history of the Church, but is not mentioned in the scriptures. It has come to be regulated by religious rules (e.g. the Rule of St Basil, the Rule of St Benedict) and, in modern times, the Church law of the respective apostolic Christian churches that have forms of monastic living. The Christian monk embraces the monastic life as a vocation from God. His objective is to imitate the life of Christ as far as possible in preparation for attaining eternal life after death. In 4th century Egypt, Christians felt called to a more reclusive or eremitic form of living (in the spirit of the "Desert Theology" for the purpose of spiritual renewal and return to God). Saint Anthony the Great is cited by Athanasius as one of the early "Hermit monks". Especially in the Middle East, eremitic monasticism continued to be common until the decline of Syriac Christianity in the late Middle Ages. Around 318 Saint Pachomius started to organize his many followers in what was to become the first Christian cenobitic or communal monastery. Soon, similar institutions were established throughout the Egyptian desert as well as the rest of the eastern half of the Roman Empire. Notable monasteries in the East include: Monastery of Saint Anthony, one of the oldest Christian monasteries in the world. Mar Awgin founded a monastery on Mt. Izla above Nisibis in Mesopotamia (c. 350), and from this monastery the cenobitic tradition spread in Mesopotamia, Persia, Armenia, Georgia and even India and China. St. Sabbas the Sanctified organized the monks of the Judean Desert in a monastery close to Bethlehem (483), now known as Mar Saba, which is considered the mother of all monasteries of the Eastern Orthodox churches. Saint Catherine's Monastery was founded between 527 and 565 in the Sinai Peninsula, Egypt by order of Emperor Justinian I. In the West, the most significant development occurred when the rules for monastic communities were written down, the Rule of St Basil being credited with having been the first. The precise dating of the Rule of the Master is problematic. It has been argued that it antedates the Rule of Saint Benedict created by Benedict of Nursia for his monastery in Monte Cassino, Italy (c. 529), and the other Benedictine monasteries he had founded as part of the Order of St Benedict. It would become the most common rule throughout the Middle Ages and is still in use today. The Augustinian Rule, due to its brevity, has been adopted by various communities, chiefly the Canons Regular. Around the 12th century, the Franciscan, Carmelite, Dominican, Servite Order (see Servants of Mary) and Augustinian mendicant orders chose to live in city convents among the people instead of being secluded in monasteries. St. Augustine's Monastery, founded in 1277 in Erfurt, Germany is regarded by many historians and theologians as the "cradle of the Reformation", as it is where Martin Luther lived as a monk from 1505 to 1511. Today new expressions of Christian monasticism, many of which are ecumenical, are developing in various places such as the Bose Monastic Community in Italy, the Monastic Fraternities of Jerusalem throughout Europe, the New Skete, the Anglo-Celtic Society of Nativitists, the Taizé Community in France, and the mainly Evangelical Protestant New Monasticism. Hinduism In their quest to attain the spiritual goal of life, some Hindus choose the path of monasticism (Sannyasa). Monastics commit themselves to a life of simplicity, celibacy, detachment from worldly pursuits, and the contemplation of God. A Hindu monk is called a sanyāsī, sādhu, or swāmi. A nun is called a sanyāsini, sādhvi, or swāmini. Such renunciates are accorded high respect in Hindu society, because their outward renunciation of selfishness and worldliness serves as an inspiration to householders who strive for mental renunciation. Some monastics live in monasteries, while others wander from place to place, trusting in God alone to provide for their physical needs. It is considered a highly meritorious act for a lay devotee to provide sadhus with food or other necessaries. Sādhus are expected to treat all with respect and compassion, whether a person may be poor or rich, good or wicked. They are also expected to be indifferent to praise, blame, pleasure, and pain. A sādhu can typically be recognized by his ochre-colored clothing. Generally, Vaisnava monks shave their heads except for a small patch of hair on the back of the head, while Saivite monks let their hair and beard grow uncut. A sadhu's vow of renunciation typically forbids him from: owning personal property apart from a bowl, a cup, two sets of clothing and medical aids such as eyeglasses; having any contact with, looking at, thinking of or even being in the presence of women; eating for pleasure; possessing or even touching money or valuables in any way, shape or form; maintaining personal relationships. Islam Islam forbids the practice of monasticism. In Sunni Islam, one example is Uthman bin Maz'oon; one of the companions of Muhammad. He was married to Khawlah bint Hakim, both being two of the earliest converts to Islam. There is a Sunni narration that, out of religious devotion, Uthman bin Maz'oon decided to dedicate himself to night prayers and take a vow of chastity from his wife. His wife got upset and spoke to Muhammad about this. Muhammad reminded Uthman that he himself, as the Prophet, also had a family life, and that Uthman had a responsibility to his family and should not adopt monasticism as a form of religious practice. Muhammad told his companions to ease their burden and avoid excess. According to some Sunni hadiths, in a message to some companions who wanted to put an end to their sexual life, pray all night long or fast continuously, Muhammad said: “Do not do that! Fast on some days and eat on others. Sleep part of the night, and stand in prayer another part. For your body has rights upon you, your eyes have a right upon you, your wife has a right upon you, your guest has a right upon you.” Muhammad once exclaimed, repeating it three times: “Woe to those who exaggerate [who are too strict]!” And, on another occasion, Muhammad said: “Moderation, moderation! For only with moderation will you succeed.” Monasticism is also mentioned in the following verse of Qur'an: Then We caused Our messengers to follow in their footsteps; and We caused Jesus, son of Mary, to follow, and gave him the Gospel, and placed compassion and mercy in the hearts of those who followed him. But monasticism they invented - We ordained it not for them - only seeking Allah's pleasure, and they observed it not with right observance. So We give those of them who believe their reward, but many of them are evil-livers. —Qur'an Verse 27, Surah Al-Hadid (chapter 57) Jainism In Jainism, monasticism is encouraged and respected. Rules for monasticism are rather strict. A Jain ascetic has neither a permanent home nor any possessions, wandering barefoot from place to place except during the months of Chaturmas. The quality of life they lead is difficult because of the many constraints placed on them. They don't use a vehicle for commuting and always commute barefoot from one place to another, irrespective of the distance. They don't possess any materialistic things and also don't use the basic services like that of a phone, electricity etc. They don't prepare food and live only on what people offer them. Judaism Judaism does not encourage the monastic ideal of celibacy and poverty. To the contrary—all of the Torah's Commandments are a means of sanctifying the physical world. As further disseminated through the teachings of the Yisrael Ba'al Shem Tov, the pursuit of permitted physical pleasures is encouraged as a means to "serve God with joy" (Deut. 28:47). However, until the Destruction of the Second Temple, about two thousand years ago, taking Nazirite vows was a common feature of the religion. Nazirite Jews (in Hebrew: נזיר) abstained from grape products, haircuts, and contact with the dead. However, they did not withdraw from general society, and they were permitted to marry and own property; moreover, in most cases a Nazirite vow was for a specified time period and not permanent. In Modern Hebrew, the term "Nazir" is most often used to refer to non-Jewish monastics. Unique among Jewish communities is the monasticism of the Beta Israel of Ethiopia, a practice believed to date to the 15th century. A form of asceticism was practiced by some individuals in pre–World War II European Jewish communities. Its principal expression was prishut, the practice of a married Talmud student going into self-imposed exile from his home and family to study in the kollel of a different city or town. This practice was associated with, but not exclusive to, the Perushim. The Essenes (in Modern but not in Ancient Hebrew: , Isiyim; Greek: Εσσηνοι, Εσσαιοι, or Οσσαιοι; Essēnoi, Essaioi, or Ossaioi) were a Jewish sect that flourished from the 2nd century BC to AD 100 which some scholars claim seceded from the Zadokite priests. Being much fewer in number than the Pharisees and the Sadducees (the other two major sects at the time), the Essenes lived in various cities but congregated in communal life dedicated to asceticism, voluntary poverty, daily immersion (in mikvah), and abstinence from worldly pleasures, including (for some groups) marriage. Many separate but related religious groups of that era shared similar mystic, eschatological, messianic, and ascetic beliefs. These groups are collectively referred to by various scholars as the "Essenes". Josephus records that Essenes existed in large numbers, and thousands lived throughout Roman Judaea. The Essenes have gained fame in modern times as a result of the discovery of an extensive group of religious documents known as the Dead Sea Scrolls, which are commonly believed to be the Essenes' library—although there is no proof that the Essenes wrote them. These documents include multiple preserved copies of the Hebrew Bible which were untouched from as early as 300 years before Christ until their discovery in 1946. Some scholars, however, dispute the notion that the Essenes wrote the Dead Sea Scrolls. Rachel Elior, a prominent Israeli scholar, even questions the existence of the Essenes. Taoism Throughout the centuries, Taoism especially Quanzhen School, have developed their own extensive monastic traditions and practices. Particularly well-known is the White Cloud Monastery of Dragon Gate Taoism in Beijing, which houses a rare complete copy of the Daozang, the major Taoist Canon. Other religions or movements Ananda Marga has both monks and nuns (i.e. celibate male and female acharyas or missionaries) as well as a smaller group of family acharyas. The monks and nuns are engaged in all kinds of direct services to society, so they have no scope for permanent retreat. They do have to follow strict celibacy, poverty and many other rules of conduct during as well as after they have completed their training. Bön is believed to have a rich monastic history. Bön monasteries exist today, and the monks there practice Bön-Buddhism. Manichaeism had two types of followers, the auditors, and the elect. The elect lived apart from the auditors to concentrate on reducing the material influences of the world. They did this through strict celibacy, poverty, teaching, and preaching. Therefore, the elect were probably at least partially monastic. Scientology maintains a "fraternal order" called the Sea Organization or just Sea Org. They work only for the Church of Scientology and have signed billion year contracts. Sea Org members live communally with lodging, food, clothing, and medical care provided by the Church. Sikhism and the Baháʼí Faith both specifically forbid the practice of monasticism. Hence there are no Sikh or Baháʼí monk conclaves or brotherhoods. Confucianism and Shinto have no known practices of monasticism. Quanzhen School of Taoism has monks and nuns Way of Former Heaven sect of Zhaijiao. The Transcendental Meditation movement sponsors two monastic groups: the Thousand-Headed Purusha for men and the Mother Divine for women. The US residences for the groups were in Heavenly Mountain, North Carolina. There is also a Purusha program at an ashram in Uttarkashi, India. The Global Mother Divine Organization describes itself as the women's wing of the Global Country of World Peace. See also Asceticism Double monastery Guru Hermit Mendicant Religious order Sādhanā References Further reading Fracchia, Charles. Living Together Alone: The New American Monasticism. Harper & Row, 1979. . Gruber, Mark. 2003. Sacrifice In the Desert: A Study of an Egyptian Minority Through the Lens of Coptic Monasticism. Lanham: University Press of America. Johnston, William M. (ed.). 2000. Encyclopedia of Monasticism. 2 vols., Chicago: Fitzroy Dearborn Publishers. Knowles, David. Christian Monasticism. London: World University Library, 1969 Lawrence, C. H. 2001. Medieval Monasticism: Forms of Religious Life in Western Europe in the Middle Ages (3rd Edition). New York: Longmans. Zarnecki, George. 1985. "The Monastic World: The Contributions of the Orders". Pp. 36–66, in Evans, Joan (ed.). 1985. The Flowering of the Middle Ages. London: Thames and Hudson Ltd. External links The Hermits by Charles Kingsley (Gutenberg) Links to Coptic Orthodox Monasteries of Egypt and the world Historyfish.net: texts and articles regarding the Western Christian monastic tradition. Abbot Gasquet's English Monastic Life. Full Text + Illustrations. Public Domain Photochrom photographs, Abbeys, Cathedrals, Holy Sites and the Holy Land. History of Monasticism Monasticism Immaculate Heart of Mary's Hermitage "Woman" – The correct perspective for the monastic – An eastern point of view American Benedictines Asceticism Clerical celibacy

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https://en.wikipedia.org/wiki/May%2010

May 10

Events Pre-1600 28 BC – A sunspot is observed by Han dynasty astronomers during the reign of Emperor Cheng of Han, one of the earliest dated sunspot observations in China. 1291 – Scottish nobles recognize the authority of Edward I of England pending the selection of a king. 1497 – Amerigo Vespucci allegedly leaves Cádiz for his first voyage to the New World. 1503 – Christopher Columbus visits the Cayman Islands and names them Las Tortugas after the numerous turtles there. 1534 – Jacques Cartier visits Newfoundland. 1601–1900 1688 – King Narai nominates Phetracha as regent, leading to the revolution of 1688 in which Phetracha becomes king of the Ayutthaya Kingdom. 1768 – Rioting occurs in London after John Wilkes is imprisoned for writing an article for The North Briton severely criticizing King George III. 1773 – The Parliament of Great Britain passes the Tea Act, designed to save the British East India Company by reducing taxes on its tea and granting it the right to sell tea directly to North America. The legislation leads to the Boston Tea Party. 1774 – Louis XVI and Marie Antoinette become King and Queen of France. 1775 – American Revolutionary War: A small Colonial militia led by Ethan Allen and Colonel Benedict Arnold captures Fort Ticonderoga. 1775 – American Revolutionary War: The Second Continental Congress takes place in Philadelphia. 1796 – War of the First Coalition: Napoleon wins a victory against Austrian forces at Lodi bridge over the Adda River in Italy. The Austrians lose some 2,000 men. 1801 – First Barbary War: The Barbary pirates of Tripoli declare war on the United States of America. 1824 – The National Gallery in London opens to the public. 1833 – A revolt broke out in southern Vietnam against Emperor Minh Mang, who had desecrated the deceased mandarin Le Van Duyet. 1837 – Panic of 1837: New York City banks suspend the payment of specie, triggering a national banking crisis and an economic depression whose severity was not surpassed until the Great Depression. 1849 – Astor Place Riot: A riot breaks out at the Astor Opera House in Manhattan, New York City over a dispute between actors Edwin Forrest and William Charles Macready, killing at least 22 and injuring over 120. 1857 – Indian Rebellion of 1857: In India, the first war of Independence begins. Sepoys mutiny against their commanding officers at Meerut. 1865 – American Civil War: In Kentucky, Union soldiers ambush and mortally wound Confederate raider William Quantrill, who lingers until his death on June 6. 1869 – The First Transcontinental Railroad, linking the eastern and western United States, is completed at Promontory Summit, Utah Territory with the golden spike. 1872 – Victoria Woodhull becomes the first woman nominated for President of the United States. 1876 – The Centennial Exposition is opened in Philadelphia. 1881 – Carol I is crowned the King of the Romanian Kingdom. 1899 – Finnish farmworker Karl Emil Malmelin kills seven people with an axe at the Simola croft in the village of Klaukkala. 1901–present 1904 – The Horch & Cir. Motorwagenwerke AG is founded. It would eventually become the Audi company. 1908 – Mother's Day is observed for the first time in the United States, in Grafton, West Virginia. 1916 – Sailing in the lifeboat James Caird, Ernest Shackleton arrives at South Georgia after a journey of 800 nautical miles from Elephant Island. 1922 – The United States annexes the Kingman Reef. 1924 – J. Edgar Hoover is appointed first Director of the United States' Federal Bureau of Investigation (FBI), and remains so until his death in 1972. 1933 – Censorship: In Germany, the Nazis stage massive public book burnings. 1940 – World War II: German fighters accidentally bomb the German city of Freiburg. 1940 – World War II: Winston Churchill is appointed Prime Minister of the United Kingdom following the resignation of Neville Chamberlain. On the same day, Germany invades France, The Netherlands, Belgium and Luxembourg. Meanwhile, the United Kingdom occupies Iceland. 1941 – World War II: The House of Commons in London is damaged by the Luftwaffe in an air raid. 1941 – World War II: Rudolf Hess parachutes into Scotland to try to negotiate a peace deal between the United Kingdom and Nazi Germany. 1942 – World War II: The Thai Phayap Army invades the Shan States during the Burma Campaign. 1946 – First successful launch of an American V-2 rocket at White Sands Proving Ground. 1962 – Marvel Comics publishes the first issue of The Incredible Hulk. 1967 – The Northrop M2-F2 crashes on landing, becoming the inspiration for the novel Cyborg and TV series The Six Million Dollar Man. 1969 – Vietnam War: The Battle of Dong Ap Bia begins with an assault on Hill 937. It will ultimately become known as Hamburger Hill. 1975 – Sony introduces the Betamax videocassette recorder. 1993 – In Thailand, a fire at the Kader Toy Factory kills over 200 workers. 1994 – Nelson Mandela is inaugurated as South Africa's first black president. 1996 – A blizzard strikes Mount Everest, killing eight climbers by the next day. 1997 – The 7.3 Mw Qayen earthquake strikes Iran's Khorasan Province killing 1,567 people. 2002 – FBI agent Robert Hanssen is sentenced to life imprisonment without the possibility of parole for selling United States secrets to Russia for $1.4 million in cash and diamonds. 2005 – A hand grenade thrown by Vladimir Arutyunian lands about from U.S. President George W. Bush while he is giving a speech to a crowd in Tbilisi, Georgia, but it malfunctions and does not detonate. 2012 – The Damascus bombings are carried out using a pair of car bombs detonated by suicide bombers outside a military intelligence complex in Damascus, Syria, killing 55 people. 2013 – One World Trade Center becomes the tallest building in the Western Hemisphere. 2017 – Syrian civil war: The Syrian Democratic Forces (SDF) capture the last footholds of the Islamic State of Iraq and the Levant (ISIL) in Al-Tabqah, bringing the Battle of Tabqa to an end. Births Pre-1600 874 – Meng Zhixiang, Chinese general and emperor (d. 934) 955 – Al-Aziz Billah, Fatimid caliph (d. 996) 1491 – Suzanne, Duchess of Bourbon (d. 1521) 1601–1900 1604 – Jean Mairet, French author and playwright (d. 1686) 1697 – Jean-Marie Leclair, French violinist and composer (d. 1764) 1727 – Anne-Robert-Jacques Turgot, Baron de Laune, French economist and politician (d. 1781) 1755 – Robert Gray, American captain and explorer (d. 1806) 1760 – Johann Peter Hebel, German author and poet (d. 1826) 1760 – Claude Joseph Rouget de Lisle, French captain, engineer, and composer (d. 1836) 1770 – Louis-Nicolas Davout, French general and politician, French Minister of War (d. 1823) 1788 – Augustin-Jean Fresnel, French physicist and engineer (d. 1827) 1812 – William Henry Barlow, English engineer (d. 1902) 1813 – Montgomery Blair, American lieutenant and politician, 20th United States Postmaster General (d. 1883) 1838 – John Wilkes Booth, American actor, assassin of Abraham Lincoln (d. 1865) 1841 – James Gordon Bennett, Jr., American publisher and broadcaster (d. 1918) 1843 – Benito Pérez Galdós, Spanish author and playwright (d. 1920) 1847 – Wilhelm Killing, German mathematician and academic (d. 1923) 1855 – Yukteswar Giri, Indian guru and educator (d. 1936) 1872 – Marcel Mauss, French sociologist and anthropologist (d. 1950) 1876 – Ivan Cankar, Slovenian poet and playwright (d. 1918) 1878 – Konstantinos Parthenis, Greek painter (d. 1967) 1878 – Gustav Stresemann, German journalist and politician, Chancellor of Germany, Nobel Prize laureate (d. 1929) 1879 – Symon Petliura, Ukrainian journalist and politician (d. 1926) 1886 – Karl Barth, Swiss theologian and author (d. 1968) 1888 – Max Steiner, Austrian-American composer and conductor (d. 1971) 1890 – Alfred Jodl, German general (d. 1946) 1891 – Mahmoud Mokhtar, Egyptian sculptor and academic (d. 1934) 1893 – Tonita Peña, San Ildefonso Pueblo (Native American) artist (d. 1949) 1894 – Dimitri Tiomkin, Ukrainian-American composer and conductor (d. 1979) 1895 – Joe Murphy (Irish republican) Irish Hunger Striker (d. 1920) 1897 – Einar Gerhardsen, Norwegian politician, Prime Minister of Norway (d. 1987) 1898 – Ariel Durant, American historian and author (d. 1981) 1899 – Fred Astaire, American actor, singer, and dancer (d. 1987) 1900 – Cecilia Payne-Gaposchkin, English-American astronomer and astrophysicist (d. 1979) 1901–present 1901 – John Desmond Bernal, Irish-English crystallographer and physicist (d. 1971) 1901 – Hildrus Poindexter, American bacteriologist (d. 1987) 1902 – David O. Selznick, American director and producer (d. 1965) 1903 – Otto Bradfisch, German economist, jurist, and SS officer (d. 1994) 1905 – Markos Vamvakaris, Greek singer-songwriter and bouzouki player (d. 1972) 1908 – Carl Albert, American lawyer and politician, 54th Speaker of the United States House of Representatives (d. 2000) 1909 – Maybelle Carter, American autoharp player (d. 1978) 1911 – Bel Kaufman, American author and educator (d. 2014) 1915 – Denis Thatcher, English soldier and businessman, Spouse of the Prime Minister of the United Kingdom (d. 2003) 1916 – Milton Babbitt, American composer and educator (d. 2011) 1918 – T. Berry Brazelton, American pediatrician and author (d. 2018) 1918 – Desmond MacNamara, Irish painter, sculptor, and author (d. 2008) 1919 – Ella T. Grasso, Governor of Connecticut (d. 1981) 1920 – Basil Kelly, Northern Irish barrister, judge and politician (d. 2008) 1920 – Bert Weedon, English guitarist (d. 2012) 1922 – David Azrieli, Polish-Canadian businessman and philanthropist (d. 2014) 1922 – Nancy Walker, American actress, singer, and director (d. 1992) 1923 – Heydar Aliyev, Azerbaijan general and politician, President of Azerbaijan (d. 2003) 1923 – Otar Korkia, Georgian basketball player and coach (d. 2005) 1926 – Hugo Banzer, Bolivian general and politician, President of Bolivia (d. 2002) 1927 – Nayantara Sahgal, Indian author 1928 – Arnold Rüütel, Estonian agronomist and politician, President of Estonia 1928 – Lothar Schmid, German chess player (d. 2013) 1929 – Audun Boysen, Norwegian runner (d. 2000) 1929 – George Coe, American actor and producer (d. 2015) 1929 – Antonine Maillet, Canadian author and playwright 1930 – George E. Smith, American physicist and engineer, Nobel Prize laureate 1931 – Ettore Scola, Italian director and screenwriter (d. 2016) 1933 – Jean Becker, French actor, director, and screenwriter 1935 – Larry Williams, American singer-songwriter, pianist, and producer (d. 1980) 1937 – Tamara Press, Ukrainian shot putter and discus thrower (d. 2021) 1938 – Manuel Santana, Spanish tennis player 1940 – Arthur Alexander, American country-soul singer-songwriter (d. 1993) 1940 – Wayne Dyer, American author and educator (d. 2015) 1942 – Jim Calhoun, American basketball player and coach 1944 – Jim Abrahams, American director, producer, and screenwriter 1944 – Marie-France Pisier, French actress, director, and screenwriter (d. 2011) 1946 – Donovan, Scottish singer-songwriter 1946 – Graham Gouldman, English guitarist and songwriter 1946 – Dave Mason, English singer-songwriter and guitarist 1947 – Caroline B. Cooney, American author 1949 – Miuccia Prada, Italian fashion designer 1952 – Sly Dunbar, Jamaican drummer 1955 – Mark David Chapman, American murderer 1956 – Vladislav Listyev, Russian journalist (d. 1995) 1957 – Sid Vicious, English singer and bass player (d. 1979) 1958 – Gaétan Boucher, Canadian speed skater 1958 – Rick Santorum, American lawyer and politician, United States Senator from Pennsylvania 1959 – Victoria Rowell, American actress 1959 – Danny Schayes, American basketball player 1959 – Cindy Hyde-Smith, American politician, United States Senator from Mississippi, Mississippi Commissioner of Agriculture and Commerce 1960 – Bono, Irish singer-songwriter, musician and activist 1960 – Dean Heller, American lawyer and politician, United States Senator from Nevada, Secretary of State of Nevada 1960 – Merlene Ottey, Jamaican-Slovenian runner 1963 – Lisa Nowak, American commander and astronaut 1963 – Debbie Wiseman, English composer and conductor 1965 – Linda Evangelista, Canadian model 1966 – Jonathan Edwards, English triple jumper 1967 – Eion Crossan, New Zealand rugby player 1968 – Al Murray, English comedian and television host 1968 – Tatyana Shikolenko, Russian javelin thrower 1969 – Dennis Bergkamp, Dutch footballer and manager 1969 – John Scalzi, American author and blogger 1970 – Gabriela Montero, Venezuelan-American pianist 1970 – David Weir, Scottish footballer 1971 – Ådne Søndrål, Norwegian speed skater 1972 – Christian Wörns, German footballer 1973 – Joshua Eagle, Australian tennis player 1973 – Ollie le Roux, South African rugby player 1974 – Sylvain Wiltord, French footballer 1975 – Hélio Castroneves, Brazilian race car driver 1975 – Adam Deadmarsh, Canadian-American ice hockey player 1978 – Bruno Cheyrou, French footballer 1981 – Samuel Dalembert, Haitian-Canadian basketball player 1981 – Humberto Suazo, Chilean footballer 1983 – Gustav Fridolin, Swedish journalist and politician, Swedish Minister of Education 1984 – Edward Mujica, Venezuelan baseball player 1985 – Ryan Getzlaf, Canadian ice hockey player 1985 – Jon Schofield, English canoe racer 1987 – Wilson Chandler, American basketball player 1990 – Salvador Pérez, Venezuelan baseball player 1990 – Ivana Španović, Serbian long jumper 1995 – Missy Franklin, American swimmer 1995 – Gabriella Papadakis, French ice dancer 1996 – Tyus Jones, American basketball player 1996 – Kateřina Siniaková, Czech tennis player Deaths Pre-1600 1299 – Theingapati, heir to the Pagan Kingdom 1403 – Katherine Swynford, widow of John of Gaunt 1482 – Paolo dal Pozzo Toscanelli, Italian mathematician and astronomer (b. 1397) 1493 – Colin Campbell, 1st Earl of Argyll, Scottish politician, Lord Chancellor of Scotland (b. 1433) 1521 – Sebastian Brant, German author (b. 1457) 1566 – Leonhart Fuchs, German physician and botanist (b. 1501) 1569 – John of Ávila, Spanish mystic and saint (b. 1500) 1601–1900 1641 – Johan Banér, Swedish field marshal (b. 1596) 1717 – John Hathorne, American merchant and politician (b. 1641) 1726 – Charles Beauclerk, 1st Duke of St Albans, English soldier and politician, Lord Lieutenant of Berkshire (b. 1670) 1774 – Louis XV of France (b. 1710) 1787 – William Watson, English physician, physicist, and botanist (b. 1715) 1794 – Élisabeth of France, French princess and youngest sibling of Louis XVI (b.1764) 1798 – George Vancouver, English navigator and explorer (b. 1757) 1807 – Jean-Baptiste Donatien de Vimeur, comte de Rochambeau, French general (b. 1725) 1818 – Paul Revere, American engraver and soldier (b. 1735) 1829 – Thomas Young, English physician and linguist (b. 1773) 1849 – Hokusai, Japanese painter and illustrator (b. 1760) 1863 – Stonewall Jackson, American general (b. 1824) 1868 – Henry Bennett, American lawyer and politician (b. 1808) 1889 – Mikhail Saltykov-Shchedrin, Russian journalist, author, and playwright (b. 1826) 1891 – Carl Nägeli, Swiss botanist and mycologist (b. 1817) 1897 – Andrés Bonifacio, Filipino soldier and politician, President of the Philippines (b. 1863) 1901–present 1910 – Stanislao Cannizzaro, Italian chemist and academic (b. 1826) 1945 – Richard Glücks, German SS officer (b. 1889) 1945 – Konrad Henlein, Czech soldier and politician (b. 1898) 1950 – Belle da Costa Greene, American librarian and bibliographer (b. 1883) 1960 – Yury Olesha, Russian author, poet, and playwright (b. 1899) 1964 – Mikhail Larionov, Russian painter, illustrator, and set designer (b. 1881) 1965 – Hubertus van Mook, Dutch politician, Governor-General of the Dutch East Indies (b. 1894) 1968 – Scotty Beckett, American actor and singer (b. 1929) 1974 – Hal Mohr, American director and cinematographer (b. 1894) 1977 – Joan Crawford, American actress (year of birth disputed) 1982 – Peter Weiss, German playwright and painter (b. 1916) 1988 – Shen Congwen, Chinese author and academic (b. 1902) 1990 – Walker Percy, American novelist and essayist (b. 1916) 1994 – John Wayne Gacy, American serial killer (b. 1942) 1999 – Shel Silverstein, American poet, author, and illustrator (b.1930) 2000 – Jules Deschênes, Canadian lawyer and judge (b. 1923) 2000 – Dick Sprang, American illustrator (b. 1915) 2001 – Sudhakarrao Naik, Indian politician, Governor of Himachal Pradesh (b. 1934) 2002 – Kaifi Azmi, Indian poet and songwriter (b. 1919) 2002 – Yves Robert, French actor, director, producer, and screenwriter (b. 1920) 2003 – Milan Vukcevich, Serbian-American chemist and chess player (b. 1937) 2006 – Soraya, Colombian-American singer-songwriter, guitarist, and producer (b. 1969) 2008 – Leyla Gencer, Turkish soprano (b. 1928) 2010 – Frank Frazetta, American illustrator and painter (b. 1928) 2012 – Horst Faas, German photographer and journalist (b. 1933) 2012 – Carroll Shelby, American race car driver and designer (b. 1923) 2012 – Gunnar Sønsteby, Norwegian captain and author (b. 1918) 2015 – Chris Burden, American sculptor, illustrator, and academic (b. 1946) 2018 – David Goodall, Australian botanist and ecologist (b. 1914) 2019 – Alfredo Pérez Rubalcaba, Spanish politician and chemist (b. 1951) 2020 – Betty Wright, American soul singer (b. 1953) 2021 – Pauline Tinsley, British soprano (b. 1928) Holidays and observances Children's Day (Maldives) Christian feast day: Alphius, Philadelphus and Cyrinus Calepodius Catald Comgall Damien of Molokai Gordianus and Epimachus Job (Roman Catholic Church, pre-1969 calendar) John of Ávila May 10 (Eastern Orthodox liturgics) Confederate Memorial Day (North Carolina and South Carolina) Constitution Day (Micronesia) Earliest possible day on which Pentecost can fall, while June 13 is the latest; celebrated 50 days after Easter Day.(Christianity) Golden Spike Day (Promontory, Utah) Mother's Day (Guatemala, and Mexico) References External links BBC: On This Day Historical Events on May 10 Today in Canadian History Days of the year May

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May 17

Events Pre-1600 1395 – Battle of Rovine: The Wallachians defeat an invading Ottoman army. 1521 – Edward Stafford, 3rd Duke of Buckingham, is executed for treason. 1527 – Pánfilo de Narváez departs Spain to explore Florida with 600 men - by 1536 only 4 survive. 1536 – George Boleyn, 2nd Viscount Rochford and four other men are executed for treason. 1536 – Henry VIII and Anne Boleyn's marriage is annulled. 1590 – Anne of Denmark is crowned Queen of Scotland. 1601–1900 1642 – Paul de Chomedey, Sieur de Maisonneuve (1612–1676) founds the Ville Marie de Montréal. 1648 – Emperor Ferdinand III defeats Maximilian I of Bavaria in the Battle of Zusmarshausen. 1673 – Louis Jolliet and Jacques Marquette begin exploring the Mississippi River. 1756 – Seven Years' War formally begins when Great Britain declares war on France 1760 – French forces besieging Quebec retreat after the Royal Navy arrives to relieve the British garrison. 1792 – The New York Stock Exchange is formed under the Buttonwood Agreement. 1805 – Muhammad Ali becomes Wāli of Egypt. 1809 – Emperor Napoleon I orders the annexation of the Papal States to the French Empire. 1814 – Occupation of Monaco changes from French to Austrian. 1814 – The Constitution of Norway is signed and Crown Prince Christian Frederick of Denmark is elected King of Norway by the Norwegian Constituent Assembly. 1859 – Members of the Melbourne Football Club codified the first rules of Australian rules football. 1863 – Rosalía de Castro publishes Cantares Gallegos, the first book in the Galician language. 1865 – The International Telegraph Union (later the International Telecommunication Union) is established in Paris. 1875 – Aristides wins the first Kentucky Derby with the jockey Oliver Lewis (2:37.75) 1900 – The children's novel The Wonderful Wizard of Oz, by L. Frank Baum, is first published in the United States. The first copy is given to the author's sister. 1901–present 1902 – Greek archaeologist Valerios Stais discovers the Antikythera mechanism, an ancient mechanical analog computer. 1914 – The Protocol of Corfu is signed, recognising full autonomy to Northern Epirus under nominal Albanian sovereignty. 1915 – The last British Liberal Party government (led by H. H. Asquith) falls. 1933 – Vidkun Quisling and Johan Bernhard Hjort form Nasjonal Samling — the national-socialist party of Norway. 1937 – Spanish Civil War: The Largo Caballero government resigns in the wake of the Barcelona May Days, leading Juan Negrín to form a government, without the anarcho-syndicalist CNT, in its stead. 1939 – The Columbia Lions and the Princeton Tigers play in the United States' first televised sporting event, a collegiate baseball game in New York City. 1940 – World War II: Germany occupies Brussels, Belgium. 1943 – World War II: Dambuster Raids commence by No. 617 Squadron RAF. 1954 – The United States Supreme Court hands down a unanimous decision in Brown v. Board of Education of Topeka, Kansas, outlawing racial segregation in public schools. 1967 – Six-Day War: President Gamal Abdel Nasser of Egypt demands dismantling of the peace-keeping UN Emergency Force in Egypt. 1969 – Venera program: Soviet Venera 6 begins its descent into the atmosphere of Venus, sending back atmospheric data before being crushed by pressure. 1973 – Watergate scandal: Televised hearings begin in the United States Senate. 1974 – The Troubles: Thirty-three civilians are killed and 300 injured when the Ulster Volunteer Force (UVF) detonates four car bombs in Dublin and Monaghan, Republic of Ireland. 1974 – Police in Los Angeles raid the Symbionese Liberation Army's headquarters, killing six members, including Camilla Hall. 1977 – Nolan Bushnell opened the first ShowBiz Pizza Place (later renamed Chuck E. Cheese) in San Jose, California. 1980 – General Chun Doo-hwan of South Korea seizes control of the government and declares martial law in order to suppress student demonstrations. 1980 – On the eve of presidential elections, Maoist guerrilla group Shining Path attacks a polling location in Chuschi (a town in Ayacucho), starting the Internal conflict in Peru. 1983 – The U.S. Department of Energy declassifies documents showing world's largest mercury pollution event in Oak Ridge, Tennessee (ultimately found to be ), in response to the Appalachian Observer'''s Freedom of Information Act request. 1983 – Lebanon, Israel, and the United States sign an agreement on Israeli withdrawal from Lebanon. 1984 – Prince Charles calls a proposed addition to the National Gallery, London, a "monstrous carbuncle on the face of a much-loved and elegant friend", sparking controversies on the proper role of the Royal Family and the course of modern architecture. 1987 – Iran–Iraq War: An Iraqi Dassault Mirage F1 fighter jet fires two missiles into the U.S. Navy warship , killing 37 and injuring 21 of her crew. 1990 – The General Assembly of the World Health Organization (WHO) eliminates homosexuality from the list of psychiatric diseases. 1992 – Three days of popular protests against the government of Prime Minister of Thailand Suchinda Kraprayoon begin in Bangkok, leading to a military crackdown that results in 52 officially confirmed deaths, hundreds of injuries, many disappearances, and more than 3,500 arrests. 1994 – Malawi holds its first multi-party elections. 1995 – Shawn Nelson steals an M60 tank from the California Army National Guard Armory in San Diego and proceeds to go on a rampage. 1997 – Troops of Laurent Kabila march into Kinshasa. Zaire is officially renamed Democratic Republic of the Congo. 2000 – Arsenal and Galatasaray fans clash in the 2000 UEFA Cup Final riots in Copenhagen 2004 – The first legal same-sex marriages in the U.S. are performed in the state of Massachusetts. 2006 – The aircraft carrier is sunk in the Gulf of Mexico as an artificial reef. 2007 – Trains from North and South Korea cross the 38th Parallel in a test-run agreed by both governments. This is the first time that trains have crossed the Demilitarized Zone since 1953. 2014 – A military plane crash in northern Laos kills 17 people. Births Pre-1600 1155 – Jien, Japanese monk, poet, and historian (d. 1225) 1443 – Edmund, Earl of Rutland (d. 1460) 1451 – Engelbert II of Nassau, Count of Nassau-Vianden and Lord of Breda (1475–1504) (d. 1504) 1490 – Albert, Duke of Prussia, last Grand Master of the Teutonic Knights (d. 1568) 1500 – Federico II Gonzaga, Duke of Mantua (d. 1540) 1551 – Martin Delrio, Belgian occultist and theologian (d. 1601) 1568 – Anna Vasa of Sweden, Swedish princess (d. 1625) 1601–1900 1610 – Stefano della Bella, Italian engraver and etcher (d. 1664) 1628 – Ferdinand Charles, Archduke of Austria (d. 1662) 1636 – Edward Colman, English Catholic courtier under Charles II (d. 1678) 1682 – Bartholomew Roberts, Welsh pirate (d. 1722) 1698 – Gio Nicola Buhagiar, Maltese painter (d. 1752) 1706 – Andreas Felix von Oefele, German historian and librarian (d. 1780) 1718 – Robert Darcy, 4th Earl of Holderness, English politician and diplomat, Secretary of State for the Southern Department (d. 1778) 1732 – Francesco Pasquale Ricci, Italian violinist and composer (d. 1817) 1743 – Seth Warner, American colonel (d. 1784) 1749 – Edward Jenner, English physician and microbiologist (d. 1823) 1758 – Sir John St Aubyn, 5th Baronet, English politician (d. 1839) 1768 – Caroline of Brunswick (d. 1821) 1768 – Henry Paget, 1st Marquess of Anglesey, English general and politician, Lord Lieutenant of Ireland (d. 1854) 1794 – Anna Brownell Jameson, Irish-English author (d. 1860) 1818 – Ezra Otis Kendall, American professor, astronomer and mathematician (d. 1899) 1821 – Sebastian Kneipp, German priest and therapist (d. 1897) 1835 – Thomas McIlwraith, Scottish-Australian politician, 8th Premier of Queensland (d. 1900) 1836 – Virginie Loveling, Belgian author and poet (d. 1923) 1845 – Jacint Verdaguer, Catalan priest and poet (d. 1902) 1860 – Martin Kukučín, Slovak author and playwright (d. 1928) 1860 – Charlotte Barnum, American mathematician and social activist (d. 1934) 1863 – Léon Gérin, Canadian lawyer, sociologist, and civil servant (d. 1951) 1864 – Louis Richardet, Swiss target shooter (d. 1923) 1864 – Ante Trumbić, Croatian lawyer and politician, 27th Mayor of Split (d. 1938) 1866 – Erik Satie, French pianist and composer (d. 1925) 1868 – Horace Elgin Dodge, American businessman, co-founded Dodge (d. 1920) 1868 – Panagis Tsaldaris, Greek politician, Prime Minister of Greece (d. 1936) 1870 – Newton Moore, Australian politician, 8th Premier of Western Australia (d. 1936) 1873 – Henri Barbusse, French author and journalist (d. 1935) 1873 – Dorothy Richardson, English author and journalist (d. 1957) 1874 – George Sheldon, American diver (d. 1907) 1882 – Karl Burman, Estonian architect and painter (d. 1965) 1886 – Alfonso XIII of Spain, Spanish monarch (d. 1941) 1888 – Tich Freeman, English cricketer (d. 1965) 1889 – Dorothy Gibson, American actress and singer (d. 1946) 1889 – Alfonso Reyes, Mexican author (d. 1959) 1891 – Napoleon Zervas, Greek general and politician (d. 1957) 1893 – Frederick McKinley Jones, American inventor and entrepreneur (d. 1961) 1895 – Saul Adler, Belarusian-English captain and parasitologist (d. 1966) 1895 – Reinhold Saulmann, Estonian sprinter and bandy player (d. 1936) 1897 – Odd Hassel, Norwegian chemist and academic, Nobel Prize laureate (d. 1981) 1898 – A. J. Casson, Canadian painter (d. 1992) 1899 – Carmen de Icaza, Spanish writer (d. 1979) 1901–present 1901 – Werner Egk, German pianist and composer (d. 1983) 1903 – Cool Papa Bell, American baseball player and manager (d. 1991) 1904 – Marie-Anne Desmarest, French author (d. 1973) 1906 – Zinka Milanov, Croatian-American soprano and educator (d. 1989) 1909 – Julius Sumner Miller, American physicist and academic (d. 1987) 1911 – Lisa Fonssagrives, Swedish-American model (d. 1992) 1911 – Maureen O'Sullivan, Irish-American actress (d. 1998) 1912 – Archibald Cox, American lawyer and politician, 31st United States Solicitor General (d. 2004) 1912 – Mary Beatrice Davidson Kenner, American inventor (d. 2006) 1913 – Hans Ruesch, Swiss racing driver and author (d. 2007) 1914 – Robert N. Thompson, American-Canadian chiropractor and politician (d. 1997) 1918 – Joan Benham, English actress (d. 1981) 1918 – Birgit Nilsson, Swedish operatic soprano (d. 2005) 1919 – Antonio Aguilar, Mexican singer-songwriter, producer, actor, and screenwriter (d. 2007) 1919 – Gustav Naan, Russian-Estonian physicist and philosopher (d. 1994) 1920 – Harry Männil, Estonian-Venezuelan businessman, co-founded ACO Group (d. 2010) 1921 – Dennis Brain, English horn player (d. 1957) 1921 – Bob Merrill, American composer and screenwriter (d. 1998) 1922 – Jean Rédélé, French racing driver, founded Alpine (d. 2007) 1923 – Michael Beetham, English commander and pilot (d. 2015) 1924 – Roy Bentley, English footballer (d. 2018) 1924 – Francis Tombs, Baron Tombs, English engineer and politician (d. 2020) 1926 – David Ogilvy, 13th Earl of Airlie, English-Scottish soldier and politician 1926 – Dietmar Schönherr, Austrian-Spanish actor, director, and screenwriter (d. 2014) 1926 – Franz Sondheimer, German-English chemist and academic (d. 1981) 1929 – Branko Zebec, Yugoslav football player and coach (d. 1988) 1931 – Marshall Applewhite, American cult leader, founded Heaven's Gate (d. 1997) 1931 – Dewey Redman, American saxophonist (d. 2006) 1932 – Rodric Braithwaite, English soldier and diplomat, British Ambassador to Russia 1932 – Peter Burge, Australian cricketer (d. 2001) 1933 – Yelena Gorchakova, Russian javelin thrower (d. 2002) 1934 – Friedrich-Wilhelm Kiel, German educator and politician 1934 – Earl Morrall, American football player and coach (d. 2014) 1934 – Ronald Wayne, American computer scientist, co-founded Apple Inc. 1935 – Dennis Potter, English voice actor, director, producer, and screenwriter (d. 1994) 1936 – Dennis Hopper, American actor and director (d. 2010) 1937 – Hazel R. O'Leary, American lawyer and politician, 7th United States Secretary of Energy 1938 – Jason Bernard, American actor (d. 1996) 1938 – Marcia Freedman, Israeli activist 1938 – Pervis Jackson, American R&B bass singer (d. 2008) 1939 – Hugh Dykes, Baron Dykes, English politician 1939 – Gary Paulsen, American author 1940 – Alan Kay, American computer scientist and academic 1940 – Reynato Puno, Filipino lawyer and jurist, 22nd Chief Justice of the Supreme Court of the Philippines 1941 – David Cope, American composer and author 1941 – Ben Nelson, American lawyer and politician, 37th Governor of Nebraska 1942 – Taj Mahal, American blues singer-songwriter and musician 1943 – Sirajuddin of Perlis, Yang di-Pertuan Agong of Malaysia 1943 – Johnny Warren, Australian footballer, coach, and sportscaster (d. 2004) 1944 – Jesse Winchester, American singer-songwriter, guitarist, and producer (d. 2014) 1945 – B.S. Chandrasekhar, Indian cricketer 1945 – Tony Roche, Australian tennis player and coach 1946 – Udo Lindenberg, German singer-songwriter and drummer 1947 – Stephen Platten, English bishop 1948 – Dick Gaughan, Scottish singer-songwriter and guitarist 1949 – Bill Bruford, English drummer, songwriter, and producer 1949 – Keith, American pop singer 1950 – Howard Ashman, American playwright and composer (d. 1991) 1950 – Keith Bradley, Baron Bradley, English accountant and politician 1950 – Janez Drnovšek, Slovenian economist and politician, 2nd President of Slovenia (d. 2008) 1950 – Alan Johnson, English politician, Shadow Chancellor of the Exchequer 1950 – Valeriya Novodvorskaya, Russian journalist and politician (d. 2014) 1951 – Simon Hughes, English lawyer and politician 1952 – Howard Hampton, Canadian lawyer and politician 1954 – Michael Roberts, South African-English jockey 1955 – Bill Paxton, American actor and director (d. 2017) 1955 – David Townsend, American singer-songwriter and guitarist (d. 2005) 1956 – Sugar Ray Leonard, American boxer 1956 – Annise Parker, American politician 1956 – Bob Saget, American comedian, actor, and television host (d. 2022) 1956 – Dave Sim, Canadian cartoonist and author 1957 – Pascual Pérez, Dominican baseball player (d. 2012) 1958 – Paul Di'Anno, English rock singer-songwriter 1959 – Marcelo Loffreda, Argentine rugby player and coach 1960 – Lou DiBella, American boxing promoter, actor, and producer 1960 – Simon Fuller, English talent manager and producer, created the Idols series1961 – Enya, Irish singer-songwriter and producer 1961 – Jamil Azzaoui, Canadian singer-songwriter and guitarist 1961 – Justin King, English businessman 1962 – Lise Lyng Falkenberg, Danish journalist and author 1962 – Andrew Farrar, Australian rugby league player and coach 1962 – Craig Ferguson, Scottish-American comedian, actor, and talk show host 1962 – Jane Moore, English journalist and author 1962 – Rosalind Picard, American computer scientist and engineer, co-founded Affectiva 1963 – Jon Koncak, American basketball player 1963 – Page McConnell, American keyboard player and songwriter 1964 – Stratos Apostolakis, Greek footballer and coach 1964 – Mauro Martini, Italian race car driver 1964 – Menno Oosting, Dutch tennis player (d. 1999) 1965 – Trent Reznor, American singer-songwriter, multi-instrumentalist, and producer 1965 – Jeremy Vine, English journalist and author 1966 – Qusay Hussein, Iraqi soldier and politician (d. 2003) 1966 – Mark Kratzmann, Australian tennis player and coach 1966 – Danny Manning, American basketball player and coach 1966 – Gilles Quénéhervé, French sprinter 1967 – Mohamed Nasheed, Maldivian lawyer and politician 4th President of the Maldives 1967 – Patrick Ortlieb, Austrian skier 1968 – Dave Abbruzzese, American rock drummer and songwriter 1969 – Keith Hill, English footballer and manager 1970 – Hubert Davis, American basketball player and coach 1970 – Jordan Knight, American singer-songwriter and actor 1970 – Matt Lindland, American mixed martial artist, wrestler, and politician 1970 – Jodie Rogers, Australian diver 1970 – René Vilbre, Estonian director and screenwriter 1971 – Mark Connors, Australian rugby player 1971 – Shaun Hart, Australian footballer, coach, and sportscaster 1971 – Stella Jongmans, Dutch athlete 1971 – Queen Máxima of the Netherlands, Dutch royal 1971 – Gina Raimondo, Governor of Rhode Island 1972 – Barry Hayles, English born Jamaican international footballer 1973 – Josh Homme, American singer-songwriter, guitarist, and producer 1974 – Andrea Corr, Irish singer-songwriter, pianist, and actress 1974 – Wiki González, Venezuelan baseball player 1974 – Eddie Lewis, American international soccer player 1975 – Marcelinho Paraíba, Brazilian footballer 1975 – Alex Wright, German wrestler 1976 – Kandi Burruss, American singer-songwriter, producer, and actress 1976 – Shayne Dunley, Australian rugby league player 1976 – José Guillén, Dominican-American baseball player 1976 – Daniel Komen, Kenyan runner 1976 – Wang Leehom, American-Taiwanese singer-songwriter, producer, actor, and director 1976 – Mayte Martínez, Spanish runner 1976 – Kirsten Vlieghuis, Dutch freestyle swimmer 1978 – John Foster, American baseball player and coach 1978 – Paddy Kenny, English footballer 1978 – Carlos Peña, Dominican-American baseball player 1978 – Magdalena Zděnovcová, Czech tennis player 1979 – David Jarolím, Czech footballer 1979 – Wayne Thomas, English footballer 1980 – Davor Džalto, Bosnian historian and philosopher 1980 – Fredrik Kessiakoff, Swedish cyclist 1980 – Alistair Overeem, Dutch mixed martial artist and kickboxer 1980 – Ariën van Weesenbeek, Dutch drummer 1981 – Beñat Albizuri, Spanish cyclist 1981 – Leon Osman, English footballer 1981 – Lim Jeong-hee, South Korean singer 1981 – Chris Skidmore, English historian and politician 1981 – Giannis Taralidis, Greek footballer 1982 – Matt Cassel, American football player 1982 – Dan Hardy, English mixed martial artist 1982 – Reiko Nakamura, Japanese swimmer 1982 – Tony Parker, French-American basketball player 1982 – Chloe Smith, English politician 1983 – Channing Frye, American basketball player 1983 – Chris Henry, American football player (d. 2009) 1983 – Nicky Hofs, Dutch footballer 1983 – Kevin Kingston, Australian rugby league player 1983 – Jeremy Sowers, American baseball player 1984 – Christian Bolaños, Costa Rican footballer 1984 – Christine Ohuruogu, English runner 1984 – Christine Robinson, Canadian water polo player 1984 – Passenger, English singer-songwriter and musician 1985 – Teófilo Gutiérrez, Colombian footballer 1985 – Derek Hough, American actor, singer, and dancer 1985 – Christine Nesbitt, Canadian speed skater 1985 – Todd Redmond, American baseball player 1985 – Matt Ryan, American football player 1986 – Marius Činikas, Lithuanian footballer 1986 – Timo Simonlatser, Estonian skier 1986 – Jodie Taylor, English footballer 1987 – Edvald Boasson Hagen, Norwegian cyclist 1987 – Aleandro Rosi, Italian footballer 1988 – Nikki Reed, American actress, singer, and screenwriter 1989 – Mose Masoe, New Zealand rugby league player 1989 – Rain Raadik, Estonian basketball player 1989 – Tessa Virtue, Canadian ice dancer 1990 – Will Clyburn, American basketball player 1990 – Fabian Giefer, German footballer 1990 – Charlie Gubb, New Zealand rugby league player 1990 – Katrina Hart, English runner 1990 – Guido Pella, Argentine tennis player 1991 – Johanna Konta, Australian-English tennis player 1991 – Adil Omar, Pakistani rapper and music producer 1991 – Abigail Raye, Canadian field hockey player 1994 – Julie Anne San Jose, Filipina singer-songwriter Deaths Pre-1600 528 – Empress Dowager Hu of Northern Wei 528 – Yuan Yong, imperial prince of Northern Wei 528 – Yuan Zhao, emperor of Northern Wei (b. 526) 896 – Liu Jianfeng, Chinese warlord 924 – Li Maozhen, Chinese warlord and king (b. 856) 946 – Al-Qa'im bi-Amr Allah, Fatimid caliph (b. 893) 1299 – Daumantas of Pskov, Lithuanian prince (b. c. 1240) 1336 – Go-Fushimi, emperor of Japan (b. 1288) 1365 – Louis II, Elector of Brandenburg (b. 1328) 1395 – Konstantin Dejanović/Constantine Dragaš, Serbian ruler (b. 1355) 1464 – Thomas de Ros, 9th Baron de Ros, English politician (b. 1427) 1510 – Sandro Botticelli, Italian painter (b. 1445) 1521 – Edward Stafford, 3rd Duke of Buckingham, Welsh politician, Lord High Constable of England (b. 1478) 1536 – George Boleyn, 2nd Viscount Rochford, English courtier and diplomat, Lord Warden of the Cinque Ports (b. 1504) 1536 – William Brereton, English courtier (b. 1487) 1536 – Henry Norris, English courtier (b. 1482) 1546 – Philipp von Hutten, German explorer (b. 1511) 1551 – Shin Saimdang, South Korean poet and calligraphist (b. 1504) 1558 – Francisco de Sá de Miranda, Portuguese poet (b. 1485) 1575 – Matthew Parker, English archbishop and academic (b. 1504) 1601-1900 1606 – False Dmitriy I, pretender to the Russian throne (b. 1582) 1607 – Anna d'Este, French princess (b. 1531) 1626 – Joan Pau Pujol, Catalan organist and composer (b. 1570) 1643 – Giovanni Picchi, Italian organist and composer (b. 1571) 1727 – Catherine I of Russia (b. 1684) 1729 – Samuel Clarke, English clergyman and philosopher (b. 1675) 1765 – Alexis Clairaut, French mathematician, astronomer, and geophysicist (b. 1713) 1797 – Michel-Jean Sedaine, French playwright and composer (b. 1719) 1801 – William Heberden, English physician and scholar (b. 1710) 1807 – John Gunby, American general (b. 1745) 1809 – Leopold Auenbrugger, Austrian physician (b. 1722) 1822 – Armand-Emmanuel de Vignerot du Plessis, Duc de Richelieu, French general and politician, 2nd Prime Minister of France (b. 1766) 1829 – John Jay, American politician and diplomat, 1st Chief Justice of the United States (b. 1745) 1838 – René Caillié, French explorer and author (b. 1799) 1838 – Charles Maurice de Talleyrand-Périgord, French bishop and politician, Prime Minister of France (b. 1754) 1839 – Archibald Alison, Scottish priest and author (b. 1757) 1868 – Kondō Isami, Japanese commander (b. 1834) 1875 – John C. Breckinridge, American lawyer and politician, 14th Vice President of the United States, Confederate States general (b. 1821) 1879 – Asa Packer, American businessman, founded Lehigh University (b. 1805) 1880 – Ziya Pasha, Greek author and translator (b. 1826) 1886 – John Deere, American blacksmith and businessman, founded the Deere & Company (b. 1804) 1888 – Giacomo Zanella, Italian priest and poet (b. 1820) 1900-present 1911 – Frederick August Otto Schwarz, German-American businessman, founded FAO Schwarz (b. 1836) 1916 – Boris Borisovich Golitsyn, Russian physicist and seismologist (b. 1862) 1917 – Clara Ayres, American nurse (b. 1880) 1917 – Charles Brooke, Rajah of Sarawak (b. 1829) 1919 – Guido von List, Austrian-German journalist, author, and poet (b. 1848) 1921 – Karl Mantzius, Danish actor and director (b. 1860) 1922 – Dorothy Levitt, English racing driver and journalist (b. 1882) 1927 – Harold Geiger, American pilot and lieutenant (b. 1884) 1934 – Cass Gilbert, American architect (b. 1859) 1935 – Paul Dukas, French composer, critic, and educator (b. 1865) 1936 – Panagis Tsaldaris, Greek lawyer and politician, 124th Prime Minister of Greece (b. 1868) 1938 – Jakob Ehrlich, Czech-Austrian academic and politician (b. 1877) 1943 – Johanna Elberskirchen, German author and activist (b. 1864) 1947 – George Forbes, New Zealand farmer and politician, 22nd Prime Minister of New Zealand (b. 1869) 1951 – William Birdwood, Anglo-Indian field marshal (b. 1865) 1960 – Jules Supervielle, Uruguayan-French poet and author (b. 1884) 1963 – John Wilce, American football player, coach, and physician (b. 1888) 1964 – Nandor Fodor, Hungarian-American psychologist and parapsychologist (b. 1895) 1974 – Ernest Nash, German-American photographer and scholar (b. 1898) 1977 – Charles E. Rosendahl, American admiral and pilot (b. 1892) 1980 – Gündüz Kılıç, Turkish football player and coach (b. 1918) 1985 – Abe Burrows, American director, composer, and author (b. 1910) 1987 – Gunnar Myrdal, Swedish economist, sociologist, and politician, Nobel Prize laureate (b. 1898) 1992 – Lawrence Welk, American accordion player and bandleader (b. 1903) 1995 – Toe Blake, Canadian ice hockey player and coach (b. 1912) 1996 – Kevin Gilbert, American singer-songwriter and producer (b. 1966) 1999 – Bruce Fairbairn, Canadian trumpet player and producer (b. 1949) 1999 – Lembit Oll, Estonian chess Grandmaster (b. 1966) 2000 – Donald Coggan, English archbishop (b. 1909) 2001 – Jacques-Louis Lions, French mathematician (b. 1928) 2001 – Frank G. Slaughter, American physician and author (b. 1908) 2002 – László Kubala, Hungarian-Spanish footballer, coach, and manager (b. 1927) 2002 – Aşık Mahzuni Şerif, Turkish poet and composer (b. 1940) 2004 – Jørgen Nash, Danish poet and painter (b. 1920) 2004 – Tony Randall, American actor (b. 1920) 2004 – Ezzedine Salim, Iraqi politician (b. 1943) 2005 – Frank Gorshin, American actor (b. 1934) 2006 – Cy Feuer, American director, producer, and composer (b. 1911) 2007 – Lloyd Alexander, American soldier and author (b. 1924) 2007 – T. K. Doraiswamy, Indian poet and author (b. 1921) 2009 – Mario Benedetti, Uruguayan journalist, author, and poet (b. 1920) 2009 – Jung Seung-hye, South Korean journalist and producer (b. 1965) 2010 – Yvonne Loriod, French pianist, composer, and educator (b. 1924) 2010 – Walasse Ting, Chinese-American painter and poet (b. 1929) 2011 – Harmon Killebrew, American baseball player and sportscaster (b. 1936) 2012 – Gideon Ezra, Israeli geographer and politician, Israeli Minister in the Prime Minister's Office (b. 1937) 2012 – Patrick Mafisango, Congolese-Rwandan footballer (b. 1980) 2012 – Donna Summer, American singer-songwriter (b. 1948) 2013 – Philippe Gaumont, French cyclist (b. 1973) 2013 – Peter Schulz, German politician, Mayor of Hamburg (b. 1930) 2013 – Ken Venturi, American golfer and sportscaster (b. 1931) 2013 – Jorge Rafael Videla, Argentine general and politician, 42nd President of Argentina (b. 1925) 2014 – Gerald Edelman, American biologist and immunologist, Nobel Prize laureate (b. 1929) 2014 – C. P. Krishnan Nair, Indian businessman, founded The Leela Palaces, Hotels and Resorts (b. 1922) 2014 – Douangchay Phichit, Laotian politician (b. 1944) 2014 – Thongbanh Sengaphone, Laotian politician (b. 1953) 2015 – Lionel Pickens, American rapper (b. 1983) 2017 – Todor Veselinović, Serbian football player and manager (b. 1930) 2019 – Herman Wouk, American author (b. 1915) 2020 – Lucky Peterson, American blues singer, keyboardist and guitarist (b. 1964) Holidays and observances Birthday of the Raja (Perlis) Christian feast day: Giulia Salzano Paschal Baylon William Hobart Hare (Episcopal Church (USA)) Restituta May 17 (Eastern Orthodox liturgics) Children's Day (Norway) Constitution Day (Nauru) Earliest date on which Trinity Sunday can fall, while June 20 is the latest; celebrated on the first Sunday after Pentecost. (Western Christianity) Feast of ‘Aẓamat (Baháʼí Faith, day shifts with March Equinox, see List of observances set by the Baháʼí calendar) Galician Literature Day or Día das Letras Galegas'' (Galicia) International Day Against Homophobia, Transphobia and Biphobia Liberation Day (Democratic Republic of the Congo) National Day Against Homophobia (Canada) Navy Day (Argentina) Norwegian Constitution Day World Hypertension Day World Information Society Day (International) References External links BBC: On This Day Historical Events on May 17 Today in Canadian History Days of the year May

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https://en.wikipedia.org/wiki/May%2019

May 19

Events Pre-1600 639 – Ashina Jiesheshuai and his tribesmen assaulted Emperor Taizong at Jiucheng Palace. 715 – Pope Gregory II is elected. 1051 – Henry I of France marries the Rus' princess, Anne of Kiev. 1445 – John II of Castile defeats the Infantes of Aragon at the First Battle of Olmedo. 1499 – Catherine of Aragon is married by proxy to Arthur, Prince of Wales. Catherine is 13 and Arthur is 12. 1535 – French explorer Jacques Cartier sets sail on his second voyage to North America with three ships, 110 men, and Chief Donnacona's two sons (whom Cartier had kidnapped during his first voyage). 1536 – Anne Boleyn, the second wife of Henry VIII of England, is beheaded for adultery, treason, and incest. 1542 – The Prome Kingdom falls to the Taungoo Dynasty in present-day Myanmar. 1601–1900 1643 – Thirty Years' War: French forces under the duc d'Enghien decisively defeat Spanish forces at the Battle of Rocroi, marking the symbolic end of Spain as a dominant land power. 1649 – An Act of Parliament declaring England a Commonwealth is passed by the Long Parliament. England would be a republic for the next eleven years. 1655 – The Invasion of Jamaica begins during the Anglo-Spanish War. 1743 – Jean-Pierre Christin developed the centigrade temperature scale. 1749 – King George II of Great Britain grants the Ohio Company a charter of land around the forks of the Ohio River. 1776 – American Revolutionary War: A Continental Army garrison surrenders in the Battle of The Cedars. 1780 – New England's Dark Day, an unusual darkening of the day sky, was observed over the New England states and parts of Canada. 1802 – Napoleon Bonaparte founds the Legion of Honour. 1828 – U.S. President John Quincy Adams signs the Tariff of 1828 into law, protecting wool manufacturers in the United States. 1845 – Captain Sir John Franklin and his ill-fated Arctic expedition depart from Greenhithe, England. 1848 – Mexican–American War: Mexico ratifies the Treaty of Guadalupe Hidalgo thus ending the war and ceding California, Nevada, Utah and parts of four other modern-day U.S. states to the United States for US$15 million. 1883 – Buffalo Bill's 1st Buffalo Bill's Wild West opens in Omaha, Nebraska. 1900 – Great Britain annexes Tonga Island. 1900 – Second Boer War: British troops relieve Mafeking. 1901–present 1911 – Parks Canada, the world's first national park service, is established as the Dominion Parks Branch under the Department of the Interior. 1917 – The Norwegian football club Rosenborg BK is founded. 1919 – Mustafa Kemal Atatürk lands at Samsun on the Anatolian Black Sea coast, initiating what is later termed the Turkish War of Independence. 1921 – The United States Congress passes the Emergency Quota Act establishing national quotas on immigration. 1922 – The Young Pioneer Organization of the Soviet Union is established. 1933 – Finnish cavalry general C. G. E. Mannerheim was appointed the field marshal. 1934 – Zveno and the Bulgarian Army engineer a coup d'état and install Kimon Georgiev as the new Prime Minister of Bulgaria. 1942 – World War II: In the aftermath of the Battle of the Coral Sea, Task Force 16 heads to Pearl Harbor. 1945 – Syrian demonstrators in Damascus are fired upon by French troops injuring twelve, leading to the Levant Crisis. 1950 – A barge containing munitions destined for Pakistan explodes in the harbor at South Amboy, New Jersey, devastating the city. 1950 – Egypt announces that the Suez Canal is closed to Israeli ships and commerce. 1959 – The North Vietnamese Army establishes Group 559, whose responsibility is to determine how to maintain supply lines to South Vietnam; the resulting route is the Ho Chi Minh trail. 1961 – Venera program: Venera 1 becomes the first man-made object to fly by another planet by passing Venus (the probe had lost contact with Earth a month earlier and did not send back any data). 1961 – At Silchar Railway Station, Assam, 11 Bengalis die when police open fire on protesters demanding state recognition of Bengali language in the Bengali Language Movement. 1962 – A birthday salute to U.S. President John F. Kennedy takes place at Madison Square Garden, New York City. The highlight is Marilyn Monroe's rendition of "Happy Birthday". 1963 – The New York Post Sunday Magazine publishes Martin Luther King Jr.'s Letter from Birmingham Jail. 1971 – Mars probe program: Mars 2 is launched by the Soviet Union. 1986 – The Firearm Owners Protection Act is signed into law by U.S. President Ronald Reagan. 1991 – Croatians vote for independence in a referendum. 1993 – SAM Colombia Flight 501 crashes on approach to José María Córdova International Airport in Medellín, Colombia, killing 132. 1996 – Space Shuttle program: Space Shuttle Endeavour is launched on mission STS-77. 1997 – The Sierra Gorda biosphere, the most ecologically diverse region in Mexico, is established as a result of grassroots efforts 2000 – Space Shuttle program: Space Shuttle Atlantis is launched on mission STS-101 to resupply the International Space Station. 2007 – President of Romania Traian Băsescu survives an impeachment referendum and returns to office from suspension. 2010 – The Royal Thai Armed Forces concludes its crackdown on protests by forcing the surrender of United Front for Democracy Against Dictatorship leaders. 2012 – Three gas cylinder bombs explode in front of a vocational school in the Italian city of Brindisi, killing one person and injuring five others. 2012 – A car bomb explodes near a military complex in the Syrian city of Deir ez-Zor, killing nine people. 2015 – The Refugio oil spill deposited 142,800 U.S. gallons (3,400 barrels) of crude oil onto an area in California considered one of the most biologically diverse coastlines of the west coast. 2016 – EgyptAir Flight 804 crashes into the Mediterranean Sea while traveling from Paris to Cairo, killing all on board. 2018 – The wedding of Prince Harry and Meghan Markle is held at St George's Chapel, Windsor, with an estimated global audience of 1.9 billion. Births Pre-1600 1400 – John Stourton, 1st Baron Stourton, English soldier and politician (d. 1462) 1462 – Baccio D'Agnolo, Italian woodcarver, sculptor and architect (d. 1543) 1476 (or 1474) – Helena of Moscow, Grand Duchess consort of Lithuania and Queen consort of Poland (d. 1513) 1593 – Claude Vignon, French painter (d. 1670) 1601–1900 1616 – Johann Jakob Froberger, German organist and composer (d. 1667) 1639 – Charles Weston, 3rd Earl of Portland, English soldier and noble (d. 1665) 1700 – José de Escandón, 1st Count of Sierra Gorda, Spanish sergeant and politician (d. 1770) 1724 – Augustus Hervey, 3rd Earl of Bristol, English admiral and politician, Chief Secretary for Ireland (d. 1779) 1744 – Charlotte of Mecklenburg-Strelitz, German-born Queen to George III of the United Kingdom (d. 1818) 1762 – Johann Gottlieb Fichte, German philosopher and academic (d. 1814) 1773 – Arthur Aikin, English chemist and mineralogist (d. 1854) 1795 – Johns Hopkins, American businessman and philanthropist (d. 1873) 1827 – Paul-Armand Challemel-Lacour, French academic and politician, French Minister of Foreign Affairs (d. 1896) 1832 – James Watney, Jr., English politician, brewer and cricketer (d. 1886) 1857 – John Jacob Abel, American biochemist and pharmacologist (d. 1938) 1861 – Nellie Melba, Australian soprano and actress (d. 1931) 1871 – Walter Russell, American painter, sculptor, and author (d. 1963) 1874 – Gilbert Jessop, English cricketer and soldier (d. 1955) 1878 – Alfred Laliberté, Canadian sculptor and painter (d. 1953) 1879 – Nancy Astor, Viscountess Astor, American-English politician (d. 1964) 1880 – Albert Richardson, English architect and educator, designed the Manchester Opera House (d. 1964) 1881 – Mustafa Kemal Atatürk (official birthday), Turkish field marshal and statesman, 1st President of Turkey (d. 1938) 1884 – David Munson, American runner (d. 1953) 1886 – Francis Biddle, American lawyer and judge, 58th United States Attorney General (d. 1968) 1887 – Ion Jalea, Romanian soldier and sculptor (d. 1983) 1889 – Tản Đà, Vietnamese poet and author (d. 1939) 1889 – Henry B. Richardson, American archer (d. 1963) 1890 – Eveline Adelheid von Maydell, German-American illustrator (d. 1962) 1890 – Ho Chi Minh, Vietnamese politician, 1st President of Vietnam (d. 1969) 1891 – Oswald Boelcke, German captain and pilot (d. 1916) 1893 – H. Bonciu, Romanian author, poet, and journalist (d. 1950) 1897 – Frank Luke, American lieutenant and pilot, Medal of Honor recipient (d. 1918) 1898 – Julius Evola, Italian philosopher and painter (d. 1974) 1899 – Lothar Rădăceanu, Romanian journalist, linguist, and politician (d. 1955) 1901–present 1902 – Lubka Kolessa, Ukrainian-Canadian pianist and educator (d. 1997) 1903 – Ruth Ella Moore, American scientist (d. 1994) 1906 – Bruce Bennett, American shot putter and actor (d. 2007) 1908 – Manik Bandopadhyay, Indian author, poet, and playwright (d. 1956) 1908 – Merriam Modell, American author (d. 1994) 1908 – Percy Williams, Canadian sprinter (d. 1982) 1909 – Nicholas Winton, English banker and humanitarian (d. 2015) 1910 – Alan Melville, South African cricketer (d. 1983) 1913 – Neelam Sanjiva Reddy, Indian lawyer and politician, 6th President of India (d. 1996) 1914 – Max Perutz, Austrian-English biologist and academic, Nobel Prize laureate (d. 2002) 1914 – Alex Shibicky, Canadian ice hockey player (d. 2005) 1914 – John Vachon, American photographer and journalist (d. 1975) 1915 – Renée Asherson, English actress (d. 2014) 1918 – Abraham Pais, Dutch-American physicist, historian, and academic (d. 2000) 1919 – Georgie Auld, Canadian-American saxophonist, clarinet player, and bandleader (d. 1990) 1919 – Mitja Ribičič, Italian-Slovenian soldier and politician, 25th Prime Minister of Yugoslavia (d. 2013) 1920 – Tina Strobos, Dutch psychiatrist known for rescuing Jews during World War II (d. 2012) 1921 – Leslie Broderick, English lieutenant and pilot (d. 2013) 1921 – Harry W. Brown, American colonel and pilot (d. 1991) 1921 – Daniel Gélin, French actor, director, and screenwriter (d. 2002) 1921 – Yuri Kochiyama, American activist (d. 2014) 1921 – Karel van het Reve, Dutch historian and author (d. 1999) 1922 – Arthur Gorrie, Australian hobby shop proprietor (d. 1992) 1924 – Sandy Wilson, English composer and songwriter (d. 2014) 1925 – Pol Pot, Cambodian general and politician, 29th Prime Minister of Cambodia (d. 1998) 1925 – Malcolm X, American minister and activist (d. 1965) 1926 – Edward Parkes, English engineer and academic (d. 2019) 1926 – Peter Zadek, German director and screenwriter (d. 2009) 1927 – Serge Lang, French-American mathematician, author and academic (d. 2005) 1928 – Colin Chapman, English engineer and businessman, founded Lotus Cars (d. 1982) 1928 – Thomas Kennedy, English air marshal (d. 2013) 1928 – Gil McDougald, American baseball player and coach (d. 2010) 1928 – Dolph Schayes, American basketball player and coach (d. 2015) 1929 – Helmut Braunlich, German-American violinist and composer (d. 2013) 1929 – Richard Larter, Australian painter (d. 2014) 1929 – John Stroger, American politician (d. 2008) 1930 – Eugene Genovese, American historian and author (d. 2012) 1930 – Lorraine Hansberry, American playwright and director (d. 1965) 1931 – Bob Anderson, English race car driver (d. 1967) 1931 – Trevor Peacock, English actor, screenwriter and songwriter (d. 2021) 1932 – Alma Cogan, English singer (d. 1966) 1932 – Paul Erdman, American economist and author (d. 2007) 1932 – Bill Fitch, American basketball player and coach 1932 – Elena Poniatowska, Mexican intellectual and journalist 1933 – Edward de Bono, Maltese physician, author, and academic (d. 2021) 1934 – Ruskin Bond, Indian author and poet 1934 – Jim Lehrer, American journalist and author (d. 2020) 1935 – David Hartman, American journalist and television personality 1937 – Pat Roach, English wrestler (d. 2004) 1938 – Moisés da Costa Amaral, East Timorese politician (d. 1989) 1938 – Herbie Flowers, English musician 1938 – Igor Ter-Ovanesyan, Ukrainian long jumper and coach 1939 – Livio Berruti, Italian sprinter 1939 – James Fox, English actor 1939 – Nancy Kwan, Hong Kong-American actress and makeup artist 1939 – Jānis Lūsis, Latvian javelin thrower and coach (d. 2020) 1939 – Dick Scobee, American pilot, and astronaut (d. 1986) 1940 – Jan Janssen, Dutch cyclist 1940 – Mickey Newbury, American country/pop singer-songwriter (d. 2002) 1941 – Nora Ephron, American director, producer, and screenwriter (d. 2012) 1941 – Igor Judge, Baron Judge, Maltese-English lawyer and judge, Lord Chief Justice of England and Wales 1942 – Gary Kildall, American computer scientist, founded Digital Research Inc. (d. 1994) 1942 – Robert Kilroy-Silk, English television host and politician 1943 – Eddie May, English footballer and manager (d. 2012) 1943 – Shirrel Rhoades, American author, publisher, and academic 1944 – Peter Mayhew, English-American actor (d. 2019) 1945 – Pete Townshend, English singer-songwriter and guitarist 1946 – Claude Lelièvre, Belgian activist 1946 – Michele Placido, Italian actor and director 1946 – André the Giant, French-American wrestler and actor (d. 1993) 1947 – Paul Brady, Irish singer-songwriter, guitarist, and producer 1947 – Christopher Chope, English lawyer and politician 1947 – David Helfgott, Australian pianist 1948 – Grace Jones, Jamaican-American singer-songwriter, producer, and actress 1949 – Dusty Hill, American singer-songwriter and bass player (d. 2021) 1949 – Philip Hunt, Baron Hunt of Kings Heath, English politician 1949 – Archie Manning, American football player 1950 – Tadeusz Ślusarski, Polish pole vaulter (d. 1998) 1951 – Joey Ramone, American singer-songwriter (d. 2001) 1951 – Dick Slater, American wrestler (d. 2018) 1952 – Charlie Spedding, English runner 1952 – Bert van Marwijk, Dutch footballer, coach, and manager 1953 – Patrick Hodge, Lord Hodge, Scottish lawyer and judge 1953 – Shavarsh Karapetyan, Armenian finswimmer 1953 – Florin Marin, Romanian footballer and manager 1953 – Victoria Wood, English actress, singer, director, and screenwriter (d. 2016) 1954 – Rick Cerone, American baseball player and sportscaster 1954 – Lena Einhorn, Swedish director, writer and physician 1954 – Hōchū Ōtsuka, Japanese voice actor 1954 – Phil Rudd, Australian-New Zealand drummer 1955 – James Gosling, Canadian-American computer scientist, created Java 1956 – Oliver Letwin, English philosopher and politician, Chancellor of the Duchy of Lancaster 1956 – Martyn Ware, English keyboard player, songwriter, and producer 1957 – Bill Laimbeer, American basketball player and coach 1957 – James Reyne, Nigerian-Australian singer-songwriter 1961 – Vadim Cojocaru, Moldovan politician (d. 2021) 1961 – Gregory Poirier, American director, producer, and screenwriter 1961 – Wayne Van Dorp, Canadian ice hockey player 1963 – Filippo Galli, Italian footballer and manager 1964 – Peter Jackson, Australian rugby league player and sportscaster (d. 1997) 1964 – John Lee, South Korean-American football player 1964 – Miloslav Mečíř, Slovak tennis player 1965 – Maile Flanagan, American actress, producer, and screenwriter 1966 – Marc Bureau, Canadian ice hockey player and sportscaster 1966 – Jodi Picoult, American author and educator 1966 – Polly Walker, English actress 1967 – Alexia, Italian singer 1967 – Geraldine Somerville, Irish-born English actress 1968 – Kyle Eastwood, American actor and bass player 1970 – Stuart Cable, Welsh drummer (d. 2010) 1970 – K. J. Choi, South Korean golfer 1970 – Regina Narva, Estonian chess player 1970 – Nia Zulkarnaen, Indonesian actress, singer and producer 1971 – Ross Katz, American director, producer, and screenwriter 1971 – Andres Salumets, Estonian biologist, biochemist, and educator 1972 – Jenny Berggren, Swedish singer-songwriter 1972 – Claudia Karvan, Australian actress, producer, and screenwriter 1973 – Dario Franchitti, Scottish race car driver 1974 – Andrew Johns, Australian rugby league player, coach, and sportscaster 1974 – Emma Shapplin, French soprano 1974 – Nawazuddin Siddiqui, Indian actor 1975 – Pretinha, Brazilian footballer 1975 – London Fletcher, American football player 1975 – Josh Paul, American baseball player and manager 1975 – Jonas Renkse, Swedish singer-songwriter, guitarist, and producer 1976 – Ed Cota, American basketball player 1976 – Kevin Garnett, American basketball player 1977 – Manuel Almunia, Spanish footballer 1977 – Wouter Hamel, Dutch singer and guitarist 1977 – Brandon Inge, American baseball player 1977 – Natalia Oreiro, Uruguayan singer-songwriter and actress 1978 – Marcus Bent, English footballer 1978 – Dave Bus, Dutch footballer 1979 – Andrea Pirlo, Italian footballer 1979 – Diego Forlán, Uruguayan footballer 1979 – Shooter Jennings, American country singer, songwriter 1980 – Tony Hackworth, English footballer 1981 – Luciano Figueroa, Argentinian footballer 1981 – Yo Gotti, American rapper 1981 – Michael Leighton, Canadian ice hockey player 1981 – Sina Schielke, German sprinter 1981 – Klaas-Erik Zwering, Dutch swimmer 1982 – Kevin Amankwaah, English footballer 1982 – Pål Steffen Andresen, Norwegian footballer 1982 – Klaas Vantornout, Belgian cyclist 1983 – Michael Che, American comedian 1983 – Jessica Fox, English actress 1984 – Marcedes Lewis, American football player 1985 – Aleister Black, Dutch professional wrestler 1986 – Mario Chalmers, American basketball player 1987 – Michael Angelakos, American singer-songwriter and producer 1987 – David Edgar, Canadian soccer player 1987 – Mariano Torres, Argentinian footballer 1987 – Jayne Wisener, Northern Irish actress 1991 – Jordan Pruitt, American singer-songwriter 1992 – Marshmello, American electronic music producer and DJ 1992 – Michele Camporese, Italian footballer 1992 – Ola John, Dutch footballer 1992 – Felise Kaufusi, New Zealand-Tongan rugby league player 1992 – Evgeny Kuznetsov, Russian ice hockey player 1992 – Sam Smith, English singer-songwriter 1994 – Carlos Guzmán, Mexican footballer 1995 – Taane Milne, New Zealand rugby league player 2003 – Jojo Siwa, American dancer, singer, actress, and YouTube personality Deaths Pre-1600 804 – Alcuin, English monk and scholar (b. 735) 956 – Robert, archbishop of Trier 988 – Dunstan, English archbishop and saint (b. 909) 1102 – Stephen, Count of Blois (b. 1045) 1125 – Vladimir II Monomakh, Grand Duke of Kiev 1164 – Saint Bashnouna, Egyptian saint and martyr 1218 – Otto IV, Holy Roman Emperor 1296 – Pope Celestine V (b. 1215) 1303 – Saint Ivo of Kermartin, French canon lawyer (b. 1253) 1319 – Louis, Count of Évreux (b. 1276) 1389 – Dmitry Donskoy, Grand Prince of Muscovy (b. 1350) 1396 – John I of Aragon (b. 1350) 1526 – Emperor Go-Kashiwabara of Japan (b. 1464) 1531 – Jan Łaski, Polish archbishop and diplomat (b. 1456) 1536 – Anne Boleyn, Queen of England (1533–1536); second wife of Henry VIII of England (b. c. 1501) 1601–1900 1601 – Costanzo Porta, Italian composer (b. 1528) 1609 – García Hurtado de Mendoza, 5th Marquis of Cañete (b. 1535) 1610 – Thomas Sanchez, Spanish priest and theologian (b. 1550) 1623 – Mariam-uz-Zamani, Empress of the Mughal Empire (b. 1542) 1637 – Isaac Beeckman, Dutch scientist and philosopher (b. 1588) 1715 – Charles Montagu, 1st Earl of Halifax, English poet and politician, Chancellor of the Exchequer (b. 1661) 1786 – John Stanley, English organist and composer (b. 1712) 1795 – Josiah Bartlett, American physician and politician, 4th Governor of New Hampshire (b. 1729) 1795 – James Boswell, Scottish biographer (b. 1740) 1798 – William Byron, 5th Baron Byron, English lieutenant and politician (b. 1722) 1821 – Camille Jordan, French lawyer and politician (b. 1771) 1825 – Claude Henri de Rouvroy, comte de Saint-Simon, French philosopher and theorist (b. 1760) 1831 – Johann Friedrich von Eschscholtz, Estonian-German physician, botanist, and entomologist (b. 1793) 1864 – Nathaniel Hawthorne, American novelist and short story writer (b. 1804) 1865 – Sengge Rinchen, Mongolian general (b. 1811) 1872 – John Baker, English-Australian politician, 2nd Premier of South Australia (b. 1813) 1876 – Guillaume Groen van Prinsterer, Dutch historian and politician (b. 1801) 1885 – Peter W. Barlow, English engineer (b. 1809) 1895 – José Martí, Cuban journalist, poet, and philosopher (b. 1853) 1898 – William Ewart Gladstone, English lawyer and politician, Prime Minister of the United Kingdom (b. 1809) 1901–present 1901 – Marthinus Wessel Pretorius, South African general and politician, 1st President of the South African Republic (b. 1819) 1903 – Arthur Shrewsbury, English cricketer (b. 1856) 1904 – Auguste Molinier, French librarian and historian (b. 1851) 1904 – Jamsetji Tata, Indian businessman, founded Tata Group (b. 1839) 1906 – Gabriel Dumont, Canadian Métis leader (b. 1837) 1907 – Benjamin Baker, English engineer, designed the Forth Bridge (b. 1840) 1912 – Bolesław Prus, Polish journalist and author (b. 1847) 1915 – John Simpson Kirkpatrick, English-Australian soldier (b. 1892) 1918 – Gervais Raoul Lufbery, French-American soldier and pilot (b. 1885) 1935 – T. E. Lawrence, British colonel and archaeologist (b. 1888) 1936 – Muhammad Marmaduke Pickthall, British Islamic scholar (b. 1875) 1939 – Ahmet Ağaoğlu, Azerbaijani-Turkish journalist and publicist (b. 1869) 1943 – Kristjan Raud, Estonian painter and illustrator (b. 1865) 1945 – Philipp Bouhler, German soldier and politician (b. 1889) 1946 – Booth Tarkington, American novelist and dramatist (b. 1869) 1950 – Daniel Ciugureanu, Romanian physician and politician, Prime Minister of Moldova (b. 1884) 1954 – Charles Ives, American composer and educator (b. 1874) 1958 – Jadunath Sarkar, Indian historian (b. 1870) 1958 – Archie Scott Brown, Scottish race car driver (b. 1927) 1958 – Ronald Colman, English actor (b. 1891) 1963 – Walter Russell, American painter, sculptor, and author (b. 1871) 1962 – Gabriele Münter, German painter (d. 1877) 1969 – Coleman Hawkins, American saxophonist and clarinet player (b. 1901) 1971 – Ogden Nash, American poet (b. 1902) 1978 – Albert Kivikas, Estonian-Swedish journalist and author (b. 1898) 1980 – Joseph Schull, Canadian playwright and historian (b. 1906) 1983 – Jean Rey, Belgian lawyer and politician, 2nd President of the European Commission (b. 1902) 1984 – John Betjeman, English poet and academic (b. 1906) 1986 – Jimmy Lyons, American saxophonist (b. 1931) 1987 – James Tiptree, Jr., American psychologist and author (b. 1915) 1989 – Yiannis Papaioannou, Greek composer and educator (b. 1910) 1994 – Jacques Ellul, French sociologist, philosopher, and academic (b. 1912) 1994 – Jacqueline Kennedy Onassis, American journalist, 37th First Lady of the United States (b. 1929) 1994 – Luis Ocaña, Spanish cyclist (b. 1945) 1996 – John Beradino, American baseball player and actor (b. 1917) 1998 – Sōsuke Uno, Japanese soldier and politician, 75th Prime Minister of Japan (b. 1922) 2001 – Alexey Maresyev, Russian soldier and pilot (b. 1916) 2001 – Susannah McCorkle, American singer (b. 1946) 2002 – John Gorton, Australian lieutenant and politician, 19th Prime Minister of Australia (b. 1911) 2002 – Walter Lord, American historian and author (b. 1917) 2004 – Mary Dresselhuys, Dutch actress and screenwriter (b. 1907) 2007 – Bernard Blaut, Polish footballer and coach (b. 1940) 2007 – Dean Eyre, New Zealand politician (b. 1914) 2008 – Vijay Tendulkar, Indian playwright and screenwriter (b. 1928) 2009 – Robert F. Furchgott, American biochemist and academic, Nobel Prize laureate (b. 1916) 2009 – Nicholas Maw, English composer and academic (b. 1935) 2009 – Clint Smith, Canadian ice hockey player and coach (b. 1913) 2011 – Garret FitzGerald, Irish lawyer and politician, 8th Taoiseach of Ireland (b. 1926) 2011 – Jeffrey Catherine Jones, American artist (b.1944) 2012 – Bob Boozer, American basketball player (b. 1937) 2012 – Tamara Brooks, American conductor and educator (b. 1941) 2012 – Ian Burgess, English race car driver (b. 1930) 2012 – Gerhard Hetz, German-Mexican swimmer (b. 1942) 2012 – Phil Lamason, New Zealand soldier and pilot (b. 1918) 2013 – G. Sarsfield Ford, American lawyer and jurist (b. 1933) 2013 – Robin Harrison, English-Canadian pianist and composer (b. 1932) 2013 – Neil Reynolds, Canadian journalist and politician (b. 1940) 2014 – Simon Andrews, English motorcycle racer (b. 1982) 2014 – Jack Brabham, Australian race car driver (b. 1926) 2014 – Sam Greenlee, American author and poet (b. 1930) 2014 – Vincent Harding, American historian and scholar (b. 1931) 2014 – Gabriel Kolko, American historian and author (b. 1932) 2014 – Zbigniew Pietrzykowski, Polish boxer (b. 1934) 2015 – Bruce Lundvall, American businessman (b. 1935) 2015 – Ted McWhinney, Australian-Canadian lawyer and politician (b. 1924) 2015 – Happy Rockefeller, American philanthropist, socialite; 31st Second Lady of the United States (b. 1926) 2015 – Robert S. Wistrich, English historian, author, and academic (b. 1945) 2016 – Alan Young, English-born Canadian-American actor (b. 1919) 2016 – Morley Safer, Canadian-born American journalist (b. 1931) 2017 – Nawshirwan Mustafa, General coordinator of the Movement for Change (Gorran) (b. 1944) 2017 – Stanislav Petrov, Lt. Colonel in Soviet Air Defence Forces (b. 1939) 2018 – Zhengzhang Shangfang, Chinese linguist (b. 1933) 2021 – Paul Mooney, American comedian (b. 1941) Holidays and observances Christian feast day: Calocerus (Eastern Orthodox Church) Crispin of Viterbo Dunstan (Roman Catholic Church, Eastern Orthodox Church; commemoration, Anglicanism) Ivo of Kermartin Joaquina Vedruna de Mas Maria Bernarda Bütler Peter Celestine Pudentiana (Roman Catholic Church, Eastern Orthodox Church) May 19 (Eastern Orthodox liturgics) Commemoration of Atatürk, Youth and Sports Day (Turkey, Northern Cyprus) Greek Genocide Remembrance Day (Greece) Hồ Chí Minh's Birthday (Vietnam) Malcolm X Day (United States of America) National Asian & Pacific Islander HIV/AIDS Awareness Day (United States) Hepatitis Testing Day (United States) Mother's Day (Kyrgyzstan) References External links BBC: On This Day Historical Events on May 19 Today in Canadian History Days of the year May

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https://en.wikipedia.org/wiki/March%203

March 3

Events Pre-1600 473 – Gundobad (nephew of Ricimer) nominates Glycerius as emperor of the Western Roman Empire. 724 – Empress Genshō abdicates the throne in favor of her nephew Shōmu who becomes emperor of Japan. 1575 – Mughal Emperor Akbar defeats Sultan of Bengal Daud Khan Karrani's army at the Battle of Tukaroi. 1585 – The Olympic Theatre, designed by Andrea Palladio, is inaugurated in Vicenza. 1601–1900 1776 – American Revolutionary War: The first amphibious landing of the United States Marine Corps begins the Battle of Nassau. 1779 – American Revolutionary War: The Continental Army is routed at the Battle of Brier Creek near Savannah, Georgia. 1799 – The Russo-Ottoman siege of Corfu ends with the surrender of the French garrison. 1820 – The U.S. Congress passes the Missouri Compromise. 1845 – Florida is admitted as the 27th U.S. state. 1849 – The Territory of Minnesota is created. 1857 – Second Opium War: France and the United Kingdom declare war on China. 1859 – The two-day Great Slave Auction, the largest such auction in United States history, concludes. 1861 – Alexander II of Russia signs the Emancipation Manifesto, freeing serfs. 1873 – Censorship in the United States: The U.S. Congress enacts the Comstock Law, making it illegal to send any "obscene literature and articles of immoral use" through the mail. 1875 – The first ever organized indoor game of ice hockey is played in Montreal, Quebec, Canada as recorded in the Montreal Gazette. 1878 – The Russo-Turkish War ends with Bulgaria regaining its independence from the Ottoman Empire according to the Treaty of San Stefano. 1891 – Shoshone National Forest is established as the first national forest in the US and world. 1901–present 1910 – Rockefeller Foundation: John D. Rockefeller Jr. announces his retirement from managing his businesses so that he can devote all his time to philanthropy. 1913 – Thousands of women march in the Woman Suffrage Procession in Washington, D.C. 1918 – Russia signs the Treaty of Brest-Litovsk, agreeing to withdraw from World War I, and conceding German control of the Baltic States, Belarus and Ukraine. It also conceded Turkish control of Ardahan, Kars and Batumi. 1924 – The 407-year-old Islamic caliphate is abolished, when Caliph Abdülmecid II of the Ottoman Caliphate is deposed. The last remnant of the old regime gives way to the reformed Turkey of Kemal Atatürk. 1924 – The Free State of Fiume is annexed by the Kingdom of Italy. 1931 – The United States adopts The Star-Spangled Banner as its national anthem. 1938 – Oil is discovered in Saudi Arabia. 1939 – In Bombay, Mohandas Gandhi begins a hunger strike in protest at the autocratic rule in British India. 1940 – Five people are killed in an arson attack on the offices of the communist newspaper Flamman in Luleå, Sweden. 1942 – World War II: Ten Japanese warplanes raid Broome, Western Australia, killing more than 100 people. 1943 – World War II: In London, 173 people are killed in a crush while trying to enter an air-raid shelter at Bethnal Green tube station. 1944 – The Order of Nakhimov and Order of Ushakov are instituted in USSR as the highest naval awards. 1945 – World War II: American and Filipino troops recapture Manila. 1945 – World War II: The RAF accidentally bombs the Bezuidenhout area of The Hague, Netherlands, killing 511 people. 1951 – Jackie Brenston, with Ike Turner and his band, records "Rocket 88", often cited as "the first rock and roll record", at Sam Phillips's recording studios in Memphis, Tennessee. 1953 – A De Havilland Comet (Canadian Pacific Air Lines) crashes in Karachi, Pakistan, killing 11. 1958 – Nuri al-Said becomes Prime Minister of Iraq for the eighth time. 1969 – Apollo program: NASA launches Apollo 9 to test the lunar module. 1972 – Mohawk Airlines Flight 405 crashes as a result of a control malfunction and insufficient training in emergency procedures. 1974 – Turkish Airlines Flight 981 crashes at Ermenonville near Paris, France killing all 346 aboard. 1980 – The is decommissioned and stricken from the Naval Vessel Register. 1985 – Arthur Scargill declares that the National Union of Mineworkers' national executive voted to end the longest-running industrial dispute in Great Britain without any peace deal over pit closures. 1985 – A magnitude 8.3 earthquake strikes the Valparaíso Region of Chile, killing 177 and leaving nearly a million people homeless. 1986 – The Australia Act 1986 commences, causing Australia to become fully independent from the United Kingdom. 1991 – An amateur video captures the beating of Rodney King by Los Angeles police officers. 1991 – United Airlines Flight 585 crashes on its final approach to Colorado Springs. 2005 – James Roszko murders four Royal Canadian Mounted Police constables during a drug bust at his property in Rochfort Bridge, Alberta, then commits suicide. This is the deadliest peace-time incident for the RCMP since 1885 and the North-West Rebellion. 2005 – Steve Fossett becomes the first person to fly an airplane non-stop around the world solo without refueling. 2005 – Margaret Wilson is elected as Speaker of the New Zealand House of Representatives, beginning a period lasting until August 23, 2006, where all the highest political offices (including Elizabeth II as Head of State), were occupied by women, making New Zealand the first country for this to occur. 2013 – A bomb blast in Karachi, Pakistan, kills at least 45 people and injured 180 others in a predominantly Shia Muslim area. 2017 – The Nintendo Switch releases worldwide. Births Pre-1600 1455 – John II of Portugal (d. 1495) 1455 – Ascanio Sforza, Catholic cardinal (d. 1505) 1506 – Luís of Portugal, Duke of Beja (d. 1555) 1520 – Matthias Flacius, Croatian theologian and reformer (d. 1575) 1583 – Edward Herbert, 1st Baron Herbert of Cherbury, English-Welsh soldier, historian, and diplomat (d. 1648) 1589 – Gisbertus Voetius, Dutch minister, theologian, and academic (d. 1676) 1601–1900 1606 – Edmund Waller, English poet and politician (d. 1687) 1652 – Thomas Otway, English playwright and author (d. 1685) 1678 – Madeleine de Verchères, Canadian rebel leader (d. 1747) 1756 – William Godwin, English journalist and author (d. 1836) 1778 – Frederica of Mecklenburg-Strelitz (d. 1841) 1793 – William Macready, English actor and manager (d. 1873) 1800 – Heinrich Georg Bronn, German geologist and paleontologist (d. 1862) 1803 – Thomas Field Gibson, English manufacturer who aided the welfare of the Spitalfields silk weavers (d. 1889) 1805 – Jonas Furrer, Swiss politician (d. 1861) 1816 – William James Blacklock, English-Scottish painter (d. 1858) 1819 – Gustave de Molinari, Dutch-Belgian economist and theorist (d. 1912) 1825 – Shiranui Kōemon, Japanese sumo wrestler (d. 1879) 1831 – George Pullman, American engineer and businessman, founded the Pullman Company (d. 1897) 1839 – Jamsetji Tata, Indian businessman, founded Tata Group (d. 1904) 1841 – John Murray, Canadian-Scottish oceanographer and biologist (d. 1914) 1845 – Georg Cantor, Russian-German mathematician and philosopher (d. 1918) 1847 – Alexander Graham Bell, Scottish-American engineer and academic, invented the telephone (d. 1922) 1860 – John Montgomery Ward, American baseball player and manager (d. 1925) 1866 – Fred A. Busse, American lawyer and politician, 39th Mayor of Chicago (d. 1914) 1868 – Émile Chartier, French philosopher and journalist (d. 1951) 1869 – Henry Wood, English conductor (d. 1944) 1871 – Maurice Garin, Italian-French cyclist (d. 1957) 1873 – William Green, American union leader and politician (d. 1952) 1880 – Florence Auer, American actress and screenwriter (d. 1962) 1880 – Yōsuke Matsuoka, Japanese politician, Japanese Minister of Foreign Affairs (d. 1946) 1882 – Elisabeth Abegg, German anti-Nazi resistance fighter (d. 1974) 1882 – Charles Ponzi, Italian businessman (d. 1949) 1883 – Cyril Burt, English psychologist and geneticist (d. 1971) 1883 – Paul Marais de Beauchamp, French zoologist (d. 1977) 1887 – Lincoln J. Beachey, American pilot (d. 1915) 1891 – Damaskinos of Athens, Greek archbishop (d. 1949) 1893 – Beatrice Wood, American illustrator and potter (d. 1998) 1895 – Ragnar Frisch, Norwegian economist and academic, Nobel Prize laureate (d. 1973) 1895 – Matthew Ridgway, American general (d. 1993) 1898 – Emil Artin, Austrian-German mathematician and academic (d. 1962) 1900 – Edna Best, British stage and film actress, appeared on early television in 1938 (d. 1974) 1901–present 1901 – Claude Choules, English-Australian soldier (d. 2011) 1902 – Ruby Dandridge, African-American film and radio actress (d. 1987) 1903 – Vasily Kozlov, Belarusian general and politician (d. 1967) 1906 – Artur Lundkvist, Swedish poet and critic (d. 1991) 1911 – Jean Harlow, American actress (d. 1937) 1911 – Hugues Lapointe, Canadian lawyer and politician, 22nd Lieutenant Governor of Quebec (d. 1982) 1913 – Margaret Bonds, American pianist and composer (d. 1972) 1913 – Harold J. Stone, American actor (d. 2005) 1914 – Asger Jorn, Danish painter and sculptor (d. 1973) 1916 – Paul Halmos, Hungarian-American mathematician (d. 2006) 1917 – Sameera Moussa, Egyptian physicist and academic (d. 1952) 1918 – Arthur Kornberg, American biochemist and academic, Nobel Prize laureate (d. 2007) 1920 – Julius Boros, American golfer and accountant (d. 1994) 1920 – James Doohan, Canadian-American actor and soldier (d. 2005) 1920 – Ronald Searle, English-French soldier and illustrator (d. 2011) 1921 – Diana Barrymore, American actress (d. 1960) 1922 – Nándor Hidegkuti, Hungarian footballer and manager (d. 2002) 1923 – Barney Martin, American police officer and actor (d. 2005) 1923 – Doc Watson, American bluegrass singer-songwriter and musician (d. 2012) 1924 – Tomiichi Murayama, Japanese soldier and politician, 52nd Prime Minister of Japan 1926 – James Merrill, American poet and playwright (d. 1995) 1927 – Pierre Aubert, Swiss lawyer and politician (d. 2016) 1930 – Ion Iliescu, Romanian engineer and politician, 2nd President of Romania 1934 – Peter Brooke, Baron Brooke of Sutton Mandeville, English politician, Secretary of State for Northern Ireland 1934 – Jimmy Garrison, American bassist and educator (d. 1976) 1935 – Mal Anderson, Australian tennis player 1935 – Michael Walzer, American philosopher and academic 1935 – Zhelyu Zhelev, Bulgarian philosopher and politician, 2nd President of Bulgaria (d. 2015) 1939 – Larry Burkett, American author and radio host (d. 2003) 1939 – M. L. Jaisimha, Indian cricketer (d. 1999) 1940 – Germán Castro Caycedo, Colombian author and journalist 1940 – Perry Ellis, American fashion designer, founded Perry Ellis (d. 1986) 1940 – Jean-Paul Proust, French-Monacan police officer and politician, 21st Minister of State of Monaco (d. 2010) 1941 – Mike Pender, English singer-songwriter and guitarist 1945 – George Miller, Australian director, producer, and screenwriter 1945 – Hattie Winston, American actress 1947 – Clifton Snider, American author, poet, and critic 1947 – Jennifer Warnes, American singer-songwriter and producer 1948 – Snowy White, English guitarist 1949 – Ron Chernow, American historian, journalist, and author 1949 – Bonnie J. Dunbar, American engineer, academic, and astronaut 1949 – Jesse Jefferson, American baseball player (d. 2011) 1950 – Kamal Ahmed Majumder, Bangladeshi politician 1951 – Lindsay Cooper, English composer, bassoon and oboe player (d. 2013) 1951 – Andy Murray, Canadian ice hockey player and coach 1951 – Heizō Takenaka, Japanese economist and politician 1952 – Rudy Fernandez, Filipino actor and producer (d. 2008) 1953 – Robyn Hitchcock, English singer-songwriter and guitarist 1953 – Zico, Brazilian footballer and coach 1954 – Keith Fergus, American golfer 1954 – John Lilley, American singer-songwriter and guitarist 1954 – Édouard Lock, Moroccan-Canadian dancer and choreographer 1955 – Darnell Williams, English-American actor and director 1956 – Zbigniew Boniek, Polish footballer and manager 1956 – John Fulton Reid, New Zealand cricketer 1957 – Stephen Budiansky, American historian, journalist, and author 1957 – Thom Hoffman, Dutch actor and photographer 1958 – Miranda Richardson, English actress 1959 – Ira Glass, American radio host and producer 1959 – Duško Vujošević, Montenegrin basketball player and coach 1960 – Neal Heaton, American baseball player and coach 1961 – Mary Page Keller, American actress and producer 1961 – John Matteson, American biographer 1961 – Perry McCarthy, English race car driver 1961 – Fatima Whitbread, English javelin thrower 1962 – Glen E. Friedman, American photographer 1962 – Jackie Joyner-Kersee, American heptathlete and long jumper 1962 – Herschel Walker, American football player and mixed martial artist 1963 – Martín Fiz, Spanish runner 1963 – Khaltmaagiin Battulga, 5th President of Mongolia 1964 – Raúl Alcalá, Mexican cyclist 1964 – Laura Harring, Mexican-American model and actress, Miss USA 1985 1964 – Glenn Kulka, Canadian ice hockey player and wrestler 1965 – Dragan Stojković, Serbian footballer and manager 1966 – Tone Lōc, American rapper, producer, and actor 1966 – Timo Tolkki, Finnish guitarist, songwriter, and producer 1968 – Brian Cox, English keyboard player and physicist 1968 – Brian Leetch, American ice hockey player 1970 – Julie Bowen, American actress 1970 – Inzamam-ul-Haq, Pakistani cricketer and coach 1971 – Charlie Brooker, English journalist, producer, and author 1971 – Tyler Florence, American chef and author 1972 – Darren Anderton, English international footballer and sportscaster 1973 – Xavier Bettel, Luxembourger lawyer and politician, Prime Minister of Luxembourg 1974 – David Faustino, American actor, producer, and screenwriter 1976 – Fraser Gehrig, Australian footballer 1976 – Isabel Granada, Filipino-Spanish actress (d. 2017) 1976 – Keit Pentus-Rosimannus, Estonian politician, 28th Estonian Minister of Foreign Affairs 1976 – Kampamba Mulenga Chilumba, Zambian politician 1977 – Ronan Keating, Irish singer-songwriter and actor 1977 – Buddy Valastro, American chef and television host 1979 – Albert Jorquera, Spanish footballer 1981 – Julius Malema, South African politician 1981 – Emmanuel Pappoe, Ghanaian footballer 1982 – Jessica Biel, American actress, singer, and producer 1982 – Colton Orr, Canadian ice hockey player 1982 – Tolu Ogunlesi, Nigerian journalist and writer 1982 – Brent Tate, Australian rugby league player 1983 – Ashley Hansen, Australian footballer 1983 – Sarah Poewe, South African swimmer 1984 – Valerio Bernabò, Italian rugby player 1984 – Santonio Holmes, American football player 1984 – Alexander Semin, Russian ice hockey player 1986 – Jed Collins, American football player 1986 – Stacie Orrico, American singer-songwriter 1986 – Mehmet Topal, Turkish footballer 1987 – Jesús Padilla, Mexican footballer 1987 – Shraddha Kapoor, Indian actress, singer, and designer 1988 – Teodora Mirčić, Serbian tennis player 1988 – Michael Morrison, English footballer 1988 – Jan-Arie van der Heijden, Dutch footballer 1988 – Max Waller, English cricketer 1989 – Erwin Mulder, Dutch footballer 1990 – Vladimir Janković, Greek-Serbian basketball player 1991 – Anri Sakaguchi, Japanese actress 1991 – Cho-rong, South Korean singer 1993 – Gabriela Cé, Brazilian tennis player 1993 – Josef Dostál, Czech kayaker 1993 – James Roberts, Australian rugby league player 1994 – Umika Kawashima, Japanese singer and actress 1996 – Cameron Johnson, American basketball player 1997 – Camila Cabello, Cuban-American singer 1998 – Jayson Tatum, American basketball player Deaths Pre-1600 532 – Winwaloe, founder of Landévennec Abbey (b. c. 460) 1009 – Abd al-Rahman Sanchuelo, Umayyad chief minister (b. 983) 1195 – Hugh de Puiset, bishop of Durham (b. c. 1125) 1239 – Vladimir IV Rurikovich, Grand Prince of Kiev (b. 1187) 1311 – Antony Bek, bishop of Durham 1323 – Andrew Harclay, 1st Earl of Carlisle, English military leader 1383 – Hugh III, Italian nobleman 1459 – Ausiàs March, Catalan knight and poet (b. 1397) 1542 – Arthur Plantagenet, 1st Viscount Lisle, illegitimate son of Edward IV 1554 – John Frederick I, Elector of Saxony (b. 1503) 1578 – Sebastiano Venier, doge of Venice (b. 1496) 1578 – Michael Kantakouzenos Şeytanoğlu, Ottoman Greek magnate 1588 – Henry XI, duke of Legnica (b. 1539) 1592 – Michael Coxcie, Flemish painter (b. 1499) 1601–1900 1611 – William Douglas, 10th Earl of Angus, Scottish nobleman (b. 1552) 1616 – Matthias de l'Obel, Flemish physician and botanist (b. 1538) 1700 – Chhatrapati Rajaram, 3rd Chhatrapati of Maratha Empire (b. 1670) 1703 – Robert Hooke, English architect and philosopher (b. 1635) 1744 – Jean Barbeyrac, French scholar and jurist (b. 1674) 1765 – William Stukeley, English archaeologist and historian (b. 1687) 1768 – Nicola Porpora, Italian composer and educator (b. 1686) 1789 – Ghulam Kadir, leader of the Afghan Rohilla 1792 – Robert Adam, Scottish-English architect and politician, designed the Culzean Castle (b. 1728) 1850 – Oliver Cowdery, American religious leader (b. 1806) 1894 – Ned Williamson, American baseball player (b. 1857) 1901–present 1901 – George Gilman, American businessman, founded The Great Atlantic & Pacific Tea Company (b. 1826) 1905 – Antonio Annetto Caruana, Maltese archaeologist and author (b. 1830) 1927 – Mikhail Artsybashev, Ukrainian author and playwright (b. 1878) 1927 – J. G. Parry-Thomas, Welsh race car driver and engineer (b. 1884) 1929 – Katharine Wright, American educator (b. 1874) 1932 – Eugen d'Albert, Scottish-German pianist and composer (b. 1864) 1943 – George Thompson, English cricketer and umpire (b. 1877) 1959 – Lou Costello, American actor and comedian (b. 1906) 1961 – Paul Wittgenstein, Austrian-American pianist (b. 1887) 1966 – Joseph Fields, American playwright, director, and producer (b. 1895) 1966 – William Frawley, American actor and vaudevillian (b. 1887) 1966 – Alice Pearce, American actress (b. 1917) 1981 – Rebecca Lancefield, American microbiologist and researcher (b. 1895) 1982 – Firaq Gorakhpuri, Indian poet and critic (b. 1896) 1982 – Georges Perec, French author and screenwriter (b. 1936) 1983 – Hergé, Belgian author and illustrator (b. 1907) 1987 – Danny Kaye, American actor, singer, and dancer (b. 1911) 1988 – Henryk Szeryng, Polish-Mexican violinist and composer (b. 1918) 1988 – Sewall Wright, American biologist and geneticist (b. 1889) 1990 – Charlotte Moore Sitterly, American astronomer (b. 1898) 1991 – Arthur Murray, American dancer and educator (b. 1895) 1991 – William Penney, Baron Penney, Gibraltar-born English mathematician, physicist, and academic (b. 1909) 1993 – Mel Bradford, American author and critic (b. 1934) 1993 – Carlos Marcello, Tunisian-American mob boss (b. 1910) 1993 – Carlos Montoya, Spanish guitarist and composer (b. 1903) 1993 – Albert Sabin, Polish-American physician and virologist (b. 1906) 1994 – John Edward Williams, American author and academic (b. 1922) 1995 – Howard W. Hunter, American religious leader, 14th President of The Church of Jesus Christ of Latter-day Saints (b. 1907) 1996 – Marguerite Duras, French author and director (b. 1914) 1996 – John Krol, American cardinal (b. 1910) 1998 – Fred W. Friendly, American journalist and broadcaster (b. 1915) 1999 – Gerhard Herzberg, German-Canadian chemist and astronomer, Nobel Prize laureate (b. 1904) 1999 – Lee Philips, American actor and director (b. 1927) 2000 – Toni Ortelli, Italian composer and conductor (b. 1904) 2001 – Louis Edmonds, American actor (b. 1923) 2001 – Eugene Sledge, American soldier, author, and academic (b. 1923) 2002 – G. M. C. Balayogi, Indian lawyer and politician, 12th Speaker of the Lok Sabha (b. 1951) 2003 – Horst Buchholz, German actor (b. 1933) 2003 – Luis Marden, American linguist, photographer, and explorer (b. 1913) 2003 – Goffredo Petrassi, Italian composer and conductor (b. 1904) 2005 – Max Fisher, American businessman and philanthropist (b. 1928) 2006 – Ivor Cutler, Scottish poet and songwriter (b. 1923) 2006 – Else Fisher, Australian-Swedish dancer, choreographer, and director (b. 1918) 2006 – William Herskovic, Hungarian-American humanitarian (b. 1914) 2007 – Osvaldo Cavandoli, Italian cartoonist (b. 1920) 2008 – Giuseppe Di Stefano, Italian tenor and actor (b. 1921) 2008 – Norman Smith, English drummer and producer (b. 1923) 2009 – Gilbert Parent, Canadian educator and politician, 33rd Speaker of the House of Commons of Canada (b. 1935) 2010 – Keith Alexander, English footballer and manager (b. 1956) 2010 – Michael Foot, English journalist and politician, Secretary of State for Employment (b. 1913) 2011 – May Cutler, Canadian journalist, author, and politician (b. 1923) 2012 – Ralph McQuarrie, American conceptual designer and illustrator (b. 1929) 2012 – Ronnie Montrose, American guitarist, songwriter, and producer (b. 1947) 2012 – Alex Webster, American football player and coach (b. 1931) 2013 – Luis Cubilla, Uruguayan footballer and manager (b. 1940) 2013 – Bobby Rogers, American singer-songwriter (b. 1940) 2013 – James Strong, Qantas CEO from 1993 to 2001 (b. 1944) 2014 – Robert Ashley, American soldier and composer (b. 1930) 2014 – Sherwin B. Nuland, American surgeon, author, and educator (b. 1930) 2014 – William R. Pogue, American colonel, pilot, and astronaut (b. 1930) 2015 – Ernest Braun, Austrian-English physicist and academic (b. 1925) 2015 – M. Stanton Evans, American journalist and author (b. 1934) 2016 – Hayabusa, Japanese wrestler (b. 1968) 2016 – Berta Cáceres, Honduran environmentalist (b. 1973) 2016 – Martin Crowe, New Zealand cricketer and sportscaster (b. 1962) 2016 – Thanat Khoman, Thai politician and diplomat, Deputy Prime Minister of Thailand (b. 1914) 2016 – Sarah Tait, Australian Olympic rower (b. 1983) 2017 – René Préval, Haitian politician (b. 1943) 2018 – Roger Bannister, English middle-distance athlete, first man to run a four-minute mile (b. 1929) 2018 – Mal Bryce, Australian politician (b. 1943) 2018 – Vanessa Goodwin, Australian politician (b. 1969) 2018 – David Ogden Stiers, American actor, voice actor and musician (b. 1942) 2019 – Peter Hurford OBE, British organist and composer (b. 1930) 2020 – Charles J. Urstadt, American real estate executive and investor (b. 1928) Holidays and observances Christian feast day: Anselm, Duke of Friuli Arthelais Cunigunde of Luxembourg Katharine Drexel John and Charles Wesley (Episcopal Church (USA)) Marinus and Asterius of Caesarea Winwaloe March 3 (Eastern Orthodox liturgics) Hinamatsuri or "Girl's Day" (Japan) Liberation and Freedom Day (Charlottesville, Virginia, USA) Liberation Day (Bulgaria) Martyrs' Day (Malawi) Mother's Day (Georgia) Sportsmen's Day (Egypt) Teacher's Day (Lebanon) World Hearing Day World Wildlife Day References External links BBC: On This Day Historical Events on March 3 Today in Canadian History Days of the year March

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https://en.wikipedia.org/wiki/March%2015

March 15

In the Roman calendar, March 15 was known as the Ides of March. Events Pre-1600 474 BC – Roman consul Aulus Manlius Vulso celebrates an ovation for concluding the war against Veii and securing a forty years' truce. 45 BC – Caesar wins his last victory over Pompey's armies, defeating the great general's sons, Sextus and Gnaeus at Munda. 44 BC – The assassination of Julius Caesar takes place. 493 – Odoacer, the first barbarian King of Italy after the fall of the Western Roman Empire, is slain by Theoderic the Great, king of the Ostrogoths, while the two kings were feasting together. 856 – Michael III, emperor of the Byzantine Empire, overthrows the regency of his mother, empress Theodora (wife of Theophilos) with support of the Byzantine nobility. 897 – Al-Hadi ila'l-Haqq Yahya enters Sa'dah and founds the Zaydi Imamate of Yemen. 933 – After a ten-year truce, German King Henry the Fowler defeats a Hungarian army at the Battle of Riade near the Unstrut river. 1311 – Battle of Halmyros: The Catalan Company defeats Walter V, Count of Brienne to take control of the Duchy of Athens, a Crusader state in Greece. 1564 – Mughal Emperor Akbar abolishes the jizya tax on non-Muslim subjects. 1601–1900 1672 – King Charles II of England issues the Royal Declaration of Indulgence, granting limited religious freedom to all Christians. 1783 – In an emotional speech in Newburgh, New York, George Washington asks his officers not to support the Newburgh Conspiracy. The plea is successful and the threatened coup d'état never takes place. 1848 – A revolution breaks out in Hungary, and the Habsburg rulers are compelled to meet the demands of the reform party. 1874 – France and Vietnam sign the Second Treaty of Saigon, further recognizing the full sovereignty of France over Cochinchina. 1875 – Archbishop of New York John McCloskey is named the first cardinal in the United States. 1877 – First ever official cricket test match is played: Australia vs England at the MCG Stadium, in Melbourne, Australia. 1888 – Start of the Anglo-Tibetan War of 1888. 1901–present 1916 – United States President Woodrow Wilson sends 4,800 United States troops over the U.S.–Mexico border to pursue Pancho Villa. 1917 – Tsar Nicholas II of Russia abdicates the Russian throne, ending the 304-year Romanov dynasty. 1918 – Finnish Civil War: The battle of Tampere begins. 1921 – Talaat Pasha, former Grand Vizir of the Ottoman Empire and chief architect of the Armenian genocide is assassinated in Berlin by a 23-year-old Armenian, Soghomon Tehlirian. 1922 – After Egypt gains nominal independence from the United Kingdom, Fuad I becomes King of Egypt. 1926 – The dictator Theodoros Pangalos is elected President of Greece without opposition. 1927 – The first Women's Boat Race between the University of Oxford and the University of Cambridge takes place on The Isis in Oxford. 1931 – explodes off Newfoundland, killing 27 of the 147 on board. 1933 – Austrian Chancellor Engelbert Dollfuss keeps members of the National Council from convening, starting the Austrofascist dictatorship. 1939 – Germany occupies Czechoslovakia. 1939 – Carpatho-Ukraine declares itself an independent republic, but is annexed by Hungary the next day. 1941 – Philippine Airlines enters service, making the airline the first and oldest commercial airline in Asia operating under its original name. 1943 – World War II: Third Battle of Kharkov: The Germans retake the city of Kharkov from the Soviet armies in bitter street fighting. 1945 – World War II: Soviet forces begin an offensive to push Germans from Upper Silesia. 1951 – Iranian oil industry is nationalized. 1952 – In Cilaos, Réunion, 1870 mm (73 inches) of rain falls in a 24-hour period, setting a new world record (March 15 through March 16). 1961 – At the 1961 Commonwealth Prime Ministers' Conference, South Africa announces that it will withdraw from the Commonwealth when the South African Constitution of 1961 comes into effect. 1965 – President Lyndon B. Johnson, responding to the Selma crisis, tells U.S. Congress "We shall overcome" while advocating the Voting Rights Act. 1974 – Fifteen people are killed when Sterling Airways Flight 901, a Sud Aviation Caravelle, catches fire following a landing gear collapse at Mehrabad International Airport in Tehran, Iran. 1978 – Somalia and Ethiopia signed a truce to end the Ethio-Somali War. 1986 – Collapse of Hotel New World: Thirty-three people die when the Hotel New World in Singapore collapses. 1990 – Mikhail Gorbachev is elected as the first President of the Soviet Union. 1991 – Cold War: The Treaty on the Final Settlement with Respect to Germany comes into effect, granting full sovereignty to the Federal Republic of Germany. 2008 – Stockpiles of obsolete ammunition explode at an ex-military ammunition depot in the village of Gërdec, Albania, killing 26 people. 2011 – Beginning of the Syrian Civil War. 2019 – Fifty-one people are killed in the Christchurch mosque shootings. 2019 – Beginning of the 2019–20 Hong Kong protests. 2019 – Approximately 1.4 million young people in 123 countries go on strike to protest climate change. Births Pre-1600 270 – Saint Nicholas, Greek bishop and saint (d. 343) 1275 – Margaret of England, Duchess of Brabant (d. 1333) 1407 – Jacob, Margrave of Baden-Baden (d. 1453) 1444 – Francesco Gonzaga, Catholic cardinal (d. 1483) 1493 – Anne de Montmorency, French captain and diplomat (d. 1567) 1513 – Hedwig Jagiellon, Electress of Brandenburg (d. 1573) 1516 – Alqas Mirza, Safavid prince (d. 1550) 1582 – Daniel Featley, English theologian and controversialist (d. 1645) 1584 – Philip, Duke of Schleswig-Holstein-Sonderburg-Glücksburg (d. 1663) 1591 – Alexandre de Rhodes, French missionary and lexicographer (d. 1660) 1601–1900 1638 – Shunzhi Emperor of China (d. 1661) 1666 – George Bähr, German architect, designed the Dresden Frauenkirche (d. 1738) 1754 – Archibald Menzies, Scottish surgeon and botanist (d. 1842) 1767 – Andrew Jackson, American general, judge, and politician, 7th President of the United States (d. 1845) 1779 – William Lamb, 2nd Viscount Melbourne, English politician, Prime Minister of the United Kingdom (d. 1848) 1790 – Ludwig Immanuel Magnus, German mathematician and academic (d. 1861) 1791 – Charles Knight, English author and publisher (d. 1873) 1809 – Joseph Jenkins Roberts, American-Liberian historian and politician, 1st President of Liberia (d. 1876) 1809 – Karl Josef von Hefele, German bishop and theologian (d. 1893) 1813 – John Snow, English physician and epidemiologist (d. 1858) 1818 – Mariano Álvarez, Filipino general and politician (d. 1924) 1821 – Johann Josef Loschmidt, Austrian physicist and chemist (d. 1895) 1821 – William Milligan, Scottish theologian, author, and educator (d. 1892) 1824 – Jules Chevalier, French priest, founded the Missionaries of the Sacred Heart (d. 1907) 1830 – Paul Heyse, German author, poet, and playwright, Nobel Prize laureate (d. 1914) 1830 – Élisée Reclus, French geographer and academic (d. 1905) 1831 – Saint Daniele Comboni, Italian missionary and saint (d. 1881) 1835 – John Henry Kagi, American lawyer and activist (d. 1859) 1835 – Eduard Strauss, Austrian composer and conductor (d. 1916) 1838 – Karl Davydov, Russian cellist, composer, and conductor (d. 1889) 1851 – John Sebastian Little, American lawyer and politician, 21st Governor of Arkansas (d. 1916) 1851 – William Mitchell Ramsay, Scottish archaeologist and scholar (d. 1939) 1852 – Augusta, Lady Gregory, Anglo-Irish landowner, playwright, and translator (d. 1932) 1854 – Emil von Behring, German physiologist and physician, Nobel Prize laureate (d. 1917) 1857 – Christian Michelsen, Norwegian businessman and politician, 1st Prime Minister of Norway (d. 1925) 1858 – Liberty Hyde Bailey, American botanist and academic, co-founded the American Society for Horticultural Science (d. 1954) 1860 – Waldemar Haffkine, Russian-Swiss bacteriologist and microbiologist (d. 1930) 1864 – Johan Halvorsen, Norwegian violinist, composer, and conductor (Oslo Philharmonic) (d. 1935) 1865 – Manuk Abeghian, Armenian author and scholar (d. 1944) 1866 – Matthew Charlton, Australian miner and politician (d. 1948) 1866 – Johan Vaaler, Norwegian inventor, often erroneously identified as the inventor of the Paper clip (d. 1910) 1868 – Grace Chisholm Young, English mathematician (d. 1944) 1869 – Stanisław Wojciechowski, Polish scholar and politician, 2nd President of the Republic of Poland (d. 1953) 1874 – Eugène Fiset, Canadian physician, general, and politician, 18th Lieutenant Governor of Quebec (d. 1951) 1874 – Harold L. Ickes, American journalist and politician, 32nd United States Secretary of the Interior (d. 1952) 1878 – Reza Shah, Iranian king (d. 1944) 1886 – Wladimir Burliuk, Ukrainian-Greek painter and illustrator (d. 1917) 1887 – Marjorie Merriweather Post, American businesswoman and philanthropist, founded General Foods (d. 1973) 1887 – Lütfi Kırdar, Turkish physician and politician, Turkish Minister of Health (d. 1961) 1879 – Benjamin R. Jacobs, American biochemist (d. 1963) 1890 – Boris Delaunay, Russian mathematician and mountaineer (d. 1980) 1892 – James Basevi Ord, Mexican-American colonel (d. 1938) 1897 – Jackson Scholz, American runner (d. 1986) 1900 – Gilberto Freyre, Brazilian sociologist, anthropologist, historian and writer (d. 1987) 1901–present 1904 – George Brent, Irish-American actor (d. 1979) 1904 – J. Pat O'Malley, English-American actor (d. 1985) 1905 – Berthold Schenk Graf von Stauffenberg, German lawyer and judge (d. 1944) 1907 – Zarah Leander, Swedish actress and singer (d. 1981) 1909 – Jaroslava Muchová Syllabová, Czech painter (d. 1986) 1912 – Lightnin' Hopkins, American blues singer-songwriter and guitarist (d. 1982) 1912 – Louis Paul Boon, Flemish journalist and author (d. 1979) 1913 – Macdonald Carey, American actor (d. 1994) 1913 – Jack Fairman, English race car driver (d. 2002) 1916 – Frank Coghlan, Jr., American actor and pilot (d. 2009) 1916 – Fadil Hoxha, Kosovar commander and politician, 2nd President of Kosovo (d. 2001) 1916 – Harry James, American trumpet player, bandleader, and actor (d. 1983) 1918 – Richard Ellmann, American author and critic (d. 1987) 1918 – Punch Imlach, Canadian ice hockey player, coach, and manager (d. 1987) 1919 – Bob Avakian, American music producer (d. 2017) 1919 – Lawrence Tierney, American actor (d. 2002) 1920 – E. Donnall Thomas, American physician and academic, Nobel Prize laureate (d. 2012) 1921 – Madelyn Pugh, American television writer and producer (d. 2011) 1922 – Eddie Calvert, English trumpeter (d. 1978) 1926 – Ben Johnston, American composer and academic (d. 2019) 1926 – Norm Van Brocklin, American football player and coach (d. 1983) 1927 – Christian Marquand, French actor, director, and screenwriter (d. 2000) 1927 – Carl Smith, American singer-songwriter and guitarist (d. 2010) 1928 – Bob Wilber, American clarinetist and saxophonist (d. 2019) 1930 – Zhores Alferov, Belarusian-Russian physicist and academic, Nobel Prize laureate (d. 2019) 1932 – Alan Bean, American captain, pilot, and astronaut (d. 2018) 1932 – Arif Mardin, Turkish-American record producer (d. 2006) 1933 – Ruth Bader Ginsburg, American lawyer and judge (d. 2020) 1933 – Philippe de Broca, French actor, director, and screenwriter (d. 2004) 1934 – Richard Layard, Baron Layard, English economist and academic 1934 – Kanshi Ram, Indian politician (d. 2006) 1935 – David Andrews, Irish politician, 21st Minister of Foreign Affairs for Ireland 1935 – Judd Hirsch, American actor 1935 – Jimmy Swaggart, American pastor and television host 1935 – Leonid Yengibarov, Russian-Armenian clown and boxer (d. 1972) 1936 – Howard Greenfield, American songwriter (d. 1986) 1937 – Marcus Raichle, American neurologist and physiologist 1937 – Valentin Rasputin, Russian environmentalist and author (d. 2015) 1938 – Charles Lloyd, American saxophonist and flute player 1939 – Ted Kaufman, American engineer and politician 1939 – Robert Nye, English author, poet, and playwright (d. 2016) 1939 – Julie Tullis, English mountaineer (d. 1986) 1940 – Frank Dobson, English politician, Secretary of State for Health (d. 2019) 1940 – Phil Lesh, American bassist 1941 – Mike Love, American singer-songwriter and musician 1941 – Carolyn Hansson, Canadian materials engineer 1943 – David Cronenberg, Canadian actor, director, and screenwriter 1943 – Lynda La Plante, English actress, screenwriter, and author 1943 – Michael Scott-Joynt, English bishop (d. 2014) 1943 – Sly Stone, American singer-songwriter, musician, and producer 1943 – The Iron Sheik, Iranian-American wrestler and actor 1944 – Chi Cheng, Taiwanese runner and politician 1944 – Jacques Doillon, French director and screenwriter 1944 – Francis Mankiewicz, Canadian director, producer, and screenwriter (d. 1993) 1944 – A. K. Faezul Huq, Bangladeshi lawyer and politician (d. 2007) 1945 – Mark J. Green, American lawyer and politician 1946 – Bobby Bonds, American baseball player and coach (d. 2003) 1946 – John Dempsey, English born Irish international footballer, centre-back and manager 1947 – Ry Cooder, American singer-songwriter, guitarist, and producer 1947 – Gino Ferrin, German footballer and manager 1947 – Juraj Kukura, Slovak-German actor 1948 – Kate Bornstein, American author and activist 1948 – Sérgio Vieira de Mello, Brazilian diplomat (d. 2003) 1950 – Jørgen Olsen, Danish singer-songwriter 1950 – Kurt Koch, Swiss cardinal 1951 – David Alton, Baron Alton of Liverpool, English educator and politician 1952 – Howard Devoto, English singer-songwriter 1952 – Philip Green, English businessman 1952 – Howard Koh, American physician and politician, 14th United States Assistant Secretary for Health 1953 – Richard Bruton, Irish economist and politician, Minister for Jobs, Enterprise and Innovation 1953 – Heather Graham Pozzessere, American author 1953 – Kumba Ialá, Bissau-Guinean educator and politician, President of Guinea-Bissau (d. 2014) 1954 – Massimo Bubola, Italian singer-songwriter, guitarist, and producer 1954 – Isobel Buchanan, Scottish soprano and actress 1954 – Bob Budiansky, American author and illustrator 1954 – Henry Marsh, American runner and businessman, co-founded MonaVie 1954 – Craig Wasson, American actor 1955 – Mohsin Khan, Pakistani cricketer 1955 – Dee Snider, American singer-songwriter and actor 1956 – Clay Matthews, Jr., American football player and coach 1957 – Joaquim de Almeida, Portuguese-American actor 1957 – Víctor Muñoz, Spanish footballer and manager 1957 – David Silverman, American animator, director, and screenwriter 1958 – Anne Davies, English television presenter and newsreader 1959 – Harold Baines, American baseball player and coach 1959 – Renny Harlin, Finnish director and producer 1959 – Lisa Holton, American journalist and author 1959 – Ben Okri, Nigerian poet and author 1959 – Eliot Teltscher, American tennis player 1960 – Mike Pagliarulo, American baseball player and coach 1960 – Phil Walsh, Australian rules footballer and coach (d. 2015) 1961 – Terry Cummings, American basketball player and singer 1961 – Craig Ludwig, American ice hockey player and coach 1962 – Terence Trent D'Arby, American singer-songwriter 1962 – Jimmy Baio, American actor 1963 – Bret Michaels, American singer-songwriter, guitarist, and actor 1964 – Davide Pinato, Italian footballer 1964 – Rockwell, American singer-songwriter and musician 1965 – Sunetra Gupta, Indian epidemiologist, author, and academic 1965 – Robyn Malcolm, New Zealand actress 1967 – Naoko Takeuchi, Japanese manga artist, creator of Sailor Moon 1968 – Kahimi Karie, Japanese singer 1968 – Mark McGrath, American singer-songwriter and television host 1968 – Terje Riis-Johansen, Norwegian politician, Norwegian Minister of Petroleum and Energy 1968 – Sabrina Salerno, Italian singer-songwriter, actress, and producer 1969 – Rona Ambrose, Canadian journalist and politician, former Leader of the Conservative Party of Canada 1969 – Gianluca Festa, Italian footballer and coach 1969 – Yutaka Take, Japanese jockey 1970 – Christine Anu, Australian singer 1970 – Naka Drotske, South African rugby player 1970 – Derek Parra, American speed skater and coach 1971 – Penny Lancaster, English model and photographer 1971 – Joanne Wise, English long jumper 1972 – Mark Hoppus, American singer-songwriter, bass player, and producer 1972 – Holger Stromberg, German chef 1972 – Mike Tomlin, American football player and coach 1973 – Robin Hunicke, American video game designer and producer 1973 – Masayuki Naruse, Japanese wrestler and mixed martial artist 1974 – Robert Fick, American baseball player 1975 – Eva Longoria, American actress and producer 1975 – Veselin Topalov, Bulgarian chess player 1975 – Darcy Tucker, Canadian ice hockey player 1975 – will.i.am, American rapper, producer, and actor 1976 – Katherine Brooks, American director, producer, and screenwriter 1976 – Abhay Deol, Indian actor 1976 – Cara Pifko, Canadian actress 1977 – Joe Hahn, American DJ, producer, and director 1977 – Brian Tee, Japanese-American actor, producer, and screenwriter 1978 – Takeru Kobayashi, Japanese competitive eater 1979 – Kyle Mills, New Zealand cricketer 1979 – Kevin Youkilis, American baseball player and scout 1980 – Freddie Bynum, American baseball player 1980 – Eric Grothe, Jr. Australian rugby league player and guitarist 1980 – Claudiney Ramos, Brazilian footballer (d. 2013) 1981 – Young Buck, American rapper, producer, and actor 1981 – Mikael Forssell, German-Finnish footballer 1981 – Veronica Maggio, Swedish singer-songwriter 1981 – Jens Salumäe, Estonian skier 1982 – Tom Budge, Australian actor 1982 – Emily Dunn, American actress and dancer 1982 – Wilson Kipsang Kiprotich, Kenyan runner 1983 – Sean Biggerstaff, Scottish actor 1983 – Umut Bulut, Turkish footballer 1983 – Ben Hilfenhaus, Australian cricketer 1983 – Kostas Kaimakoglou, Greek basketball player 1983 – Golda Marcus, Salvadoran swimmer 1983 – Daryl Murphy, Irish footballer 1983 – Heiko Niidas, Estonian basketball player 1983 – Ricky Sekhon, English actor 1983 – Yo Yo Honey Singh, Indian music producer 1984 – Badradine Belloumou, French-Algerian footballer 1984 – Malin Buska, Swedish actress 1984 – Olivier Jean, Canadian speed skater 1984 – Kostas Vasileiadis, Greek basketball player 1984 – Wilson Aparecido Xavier Júnior, Brazilian footballer 1987 – Eric Decker, American football player 1988 – Éver Guzmán, Mexican footballer 1988 – James Reimer, Canadian ice hockey player 1988 – Jolo Revilla, Filipino actor and politician 1988 – Alexander Sims, English race car driver 1989 – Sam Baldock, English footballer 1989 – Sandro, Brazilian international footballer, midfielder 1989 – Gil Roberts, American sprinter 1989 – Adrien Silva, Portuguese footballer 1991 – Kurt Baptiste, Australian rugby league player 1991 – Xavier Henry, American basketball player 1993 – Alia Bhatt, British actress 1993 – Paul Pogba, French footballer 1996 – Seonaid McIntosh, Scottish sports shooter 2000 – Kristian Kostov, Russian-Bulgarian singer-songwriter Deaths Pre-1600 44 BC – Julius Caesar, Roman general and statesman (b. 100 BC) 220 – Cao Cao, Chinese general, warlord and statesman 493 – Odoacer, first king of Italy after the fall of the Western Roman Empire (b. 433) 963 – Romanos II, Byzantine emperor 990 – Siegfried I (the Older), German nobleman 1086 – Richilde, Countess of Hainaut, Flemish consort and regent (b. c. 1018) 1124 – Ernulf, Bishop of Rochester (b. c. 1040) 1190 – Isabella of Hainault, queen of Philip II of France (b. 1170) 1311 – Walter V, Count of Brienne (b. 1275) 1311 – Thomas III d'Autremencourt, Lord of Salona, Marshal of Achaea 1311 – Albert Pallavicini, Margrave of Bodonitza 1311 – George I Ghisi, Triarch of Euboea, Baron of Chalandritsa, Lord of Tinos, Mykonos, Serifos and Keos 1327 – Albert of Schwarzburg, grand preceptor of the Knights Hospitaller 1346 – Shah Jalal, Sufi saint of Bengal (b. 1271). 1536 – Pargalı Ibrahim Pasha, Ottoman politician, 35th Grand Vizier of the Ottoman Empire (b. 1493) 1575 – Annibale Padovano, Italian organist and composer (b. 1527) 1601–1900 1644 – Countess Louise Juliana of Nassau (b. 1576) 1657 – David Pardo, Dutch rabbi and scholar (b. 1591) 1673 – Salvator Rosa, Italian painter and poet (b. 1615) 1711 – Eusebio Kino, Italian priest and missionary (b. 1645) 1820 – Clement Mary Hofbauer, Austrian priest and saint (b. 1751) 1832 – Otto Wilhelm Masing, Estonian linguist and clergyman (b. 1763) 1842 – Luigi Cherubini, Italian composer and theorist (b. 1760) 1848 – Johan Jakob Nervander, Finnish poet, physicist and meteorologist (b. 1805) 1849 – Giuseppe Caspar Mezzofanti, Italian cardinal and linguist (b. 1774) 1891 – Joseph Bazalgette, English engineer and academic (b. 1819) 1897 – James Joseph Sylvester, English mathematician and academic (b. 1814) 1898 – Henry Bessemer, English engineer and businessman (b. 1813) 1901–present 1921 – Talaat Pasha, Ottoman politician, 281st Grand Vizier of the Ottoman Empire (b. 1874) 1927 – Hector Rason, English-Australian politician, 7th Premier of Western Australia (b. 1858) 1933 – Gustavo Jiménez, Peruvian colonel and politician, 73rd President of Peru (b. 1886) 1937 – H. P. Lovecraft, American short story writer, editor, and novelist (b. 1890) 1938 – Nikolai Bukharin, Russian journalist and politician (b. 1888) 1939 – Luis Barceló, Spanish colonel (b. 1896) 1941 – Alexej von Jawlensky, Russian-German painter (b. 1864) 1942 – Rachel Field, American author and poet (b. 1894) 1944 – Otto von Below, Prussian general (b. 1857) 1948 – Imanuel Lauster, German engineer (b. 1873) 1951 – John S. Paraskevopoulos, Greek-South African astronomer and academic (b. 1889) 1959 – Lester Young, American saxophonist and clarinet player (b. 1909) 1962 – Charles Bartliff, American soccer player (b. 1886) 1962 – Arthur Compton, American physicist and academic, Nobel Prize laureate (b. 1892) 1966 – Abe Saperstein, American basketball player and coach (b. 1902) 1969 – Miles Malleson, English actor and screenwriter (b. 1888) 1969 – Musashiyama Takeshi, Japanese sumo wrestler, the 33rd Yokozuna (b. 1909) 1970 – Tarjei Vesaas, Norwegian author and poet (b. 1897) 1971 – Jean-Pierre Monseré, Belgian cyclist (b. 1948) 1972 – Aleksandr Ivanovich Laktionov, Russian painter and educator (b. 1910) 1975 – Aristotle Onassis, Greek-Argentinian businessman (b. 1906) 1977 – Hubert Aquin, Canadian author and activist (b. 1929) 1977 – Antonino Rocca, Italian-American wrestler and referee (b. 1921) 1981 – René Clair, French director and screenwriter (b. 1898) 1983 – Coloman Braun-Bogdan, Romanian footballer and manager (b. 1905) 1983 – Rebecca West, English author and critic (b. 1892) 1985 – Radha Krishna Choudhary, Indian historian and author (b. 1921) 1986 – Alexandru Giugaru, Romanian actor (b. 1897) 1987 – Douglas Abbott, Canadian lawyer and politician, 10th Canadian Minister of National Defence (b. 1899) 1988 – Dmitri Polyakov, Ukrainian general and spy (b. 1926) 1989 – Muhammad Jameel Didi, Maldivian poet and politician (b. 1915) 1990 – Farzad Bazoft, Iranian-English journalist (b. 1958) 1990 – Tom Harmon, American football player and sportscaster (b. 1919) 1991 – Bud Freeman, American saxophonist, composer, and bandleader (b. 1906) 1992 – Rahi Masoom Raza, Indian Urdu poet (b.1927) 1997 – Gail Davis, American actress (b. 1925) 1997 – Victor Vasarely, Hungarian-French painter (b. 1906) 1998 – Tim Maia, Brazilian singer-songwriter (b. 1942) 1998 – Benjamin Spock, American pediatrician and author (b. 1903) 1999 – Guy D'Artois, Canadian soldier (b. 1917) 2001 – Gaetano Cozzi, Italian historian and academic (b. 1922) 2001 – Ann Sothern, American actress and singer (b. 1909) 2003 – Thora Hird, English actress (b. 1911) 2003 – Paul Stojanovich, American television producer, created World's Wildest Police Videos (b. 1956) 2004 – Philippe Lemaire, French actor (b. 1927) 2004 – Bill Pickering, New Zealand-American scientist and engineer (b. 1910) 2004 – John Pople, English-American chemist and academic, Nobel Prize laureate (b. 1925) 2005 – Bob Bellear, Australian engineer and judge (b. 1944) 2005 – Otar Korkia, Georgian basketball player and coach (b. 1923) 2005 – Shoji Nishio, Japanese martial artist (b. 1927) 2006 – Georgios Rallis, Greek lieutenant and politician, 173rd Prime Minister of Greece (b. 1918) 2006 – Red Storey, Canadian football player and referee (b. 1918) 2007 – Charles Harrelson, American murderer (b. 1938) 2007 – Bowie Kuhn, American lawyer and businessman (b. 1926) 2007 – Stuart Rosenberg, American director and producer (b. 1927) 2008 – Mikey Dread, Jamaican singer-songwriter and producer (b. 1954) 2008 – Vytautas Kernagis, Lithuanian singer-songwriter and actor (b. 1951) 2008 – G. David Low, American astronaut and engineer (b. 1956) 2008 – Ken Reardon, Canadian ice hockey player (b. 1921) 2008 – Sarla Thakral, First Indian woman to earn a pilot's license. 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Fullam, American priest and scholar (b. 1930) 2014 – Cees Veerman, Dutch singer-songwriter and guitarist (b. 1943) 2015 – Collins Chabane, South African politician (b. 1960) 2015 – Robert Clatworthy, English sculptor and educator (b. 1928) 2015 – Narayan Desai, Indian author and activist (b. 1924) 2015 – Sally Forrest, American actress and dancer (b. 1928) 2015 – Curtis Gans, American political scientist and author (b. 1937) 2015 – Mike Porcaro, American bass player (b. 1955) 2016 – Sylvia Anderson, English voice actress and television and film producer (b. 1927) 2016 – Asa Briggs, English historian and academic (b. 1921) 2016 – Seru Rabeni, Fijian rugby player (b. 1978) 2019 – Larry DiTillio, American film and TV series writer (b. 1948) 2020 – Vittorio Gregotti, Italian architect (b. 1927) Holidays and observances Christian feast day: Aristobulus of Britannia (Roman Catholic Church) Clement Mary Hofbauer Leocritia Saint Longinus Louise de Marillac March 15 (Eastern Orthodox liturgics) Constitution Day (Belarus) National Day, celebrating the Hungarian Revolution of 1848 (Hungary) World Consumer Rights Day (International) Youth Day (Palau) References External links BBC: On This Day Historical Events on March 15 Today in Canadian History Days of the year March

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https://en.wikipedia.org/wiki/Mathematical%20logic

Mathematical logic

Mathematical logic is the study of formal logic within mathematics. Major subareas include model theory, proof theory, set theory, and recursion theory. Research in mathematical logic commonly addresses the mathematical properties of formal systems of logic such as their expressive or deductive power. However, it can also include uses of logic to characterize correct mathematical reasoning or to establish foundations of mathematics. Since its inception, mathematical logic has both contributed to, and has been motivated by, the study of foundations of mathematics. This study began in the late 19th century with the development of axiomatic frameworks for geometry, arithmetic, and analysis. In the early 20th century it was shaped by David Hilbert's program to prove the consistency of foundational theories. Results of Kurt Gödel, Gerhard Gentzen, and others provided partial resolution to the program, and clarified the issues involved in proving consistency. Work in set theory showed that almost all ordinary mathematics can be formalized in terms of sets, although there are some theorems that cannot be proven in common axiom systems for set theory. Contemporary work in the foundations of mathematics often focuses on establishing which parts of mathematics can be formalized in particular formal systems (as in reverse mathematics) rather than trying to find theories in which all of mathematics can be developed. Subfields and scope The Handbook of Mathematical Logic in 1977 makes a rough division of contemporary mathematical logic into four areas: set theory model theory recursion theory, and proof theory and constructive mathematics (considered as parts of a single area). Additionally, sometimes the field of computational complexity theory is also included as part of mathematical logic. Each area has a distinct focus, although many techniques and results are shared among multiple areas. The borderlines amongst these fields, and the lines separating mathematical logic and other fields of mathematics, are not always sharp. Gödel's incompleteness theorem marks not only a milestone in recursion theory and proof theory, but has also led to Löb's theorem in modal logic. The method of forcing is employed in set theory, model theory, and recursion theory, as well as in the study of intuitionistic mathematics. The mathematical field of category theory uses many formal axiomatic methods, and includes the study of categorical logic, but category theory is not ordinarily considered a subfield of mathematical logic. Because of its applicability in diverse fields of mathematics, mathematicians including Saunders Mac Lane have proposed category theory as a foundational system for mathematics, independent of set theory. These foundations use toposes, which resemble generalized models of set theory that may employ classical or nonclassical logic. History Mathematical logic emerged in the mid-19th century as a subfield of mathematics, reflecting the confluence of two traditions: formal philosophical logic and mathematics. "Mathematical logic, also called 'logistic', 'symbolic logic', the 'algebra of logic', and, more recently, simply 'formal logic', is the set of logical theories elaborated in the course of the last [nineteenth] century with the aid of an artificial notation and a rigorously deductive method." Before this emergence, logic was studied with rhetoric, with calculationes, through the syllogism, and with philosophy. The first half of the 20th century saw an explosion of fundamental results, accompanied by vigorous debate over the foundations of mathematics. Early history Theories of logic were developed in many cultures in history, including China, India, Greece and the Islamic world. Greek methods, particularly Aristotelian logic (or term logic) as found in the Organon, found wide application and acceptance in Western science and mathematics for millennia. The Stoics, especially Chrysippus, began the development of predicate logic. In 18th-century Europe, attempts to treat the operations of formal logic in a symbolic or algebraic way had been made by philosophical mathematicians including Leibniz and Lambert, but their labors remained isolated and little known. 19th century In the middle of the nineteenth century, George Boole and then Augustus De Morgan presented systematic mathematical treatments of logic. Their work, building on work by algebraists such as George Peacock, extended the traditional Aristotelian doctrine of logic into a sufficient framework for the study of foundations of mathematics. Charles Sanders Peirce later built upon the work of Boole to develop a logical system for relations and quantifiers, which he published in several papers from 1870 to 1885. Gottlob Frege presented an independent development of logic with quantifiers in his Begriffsschrift, published in 1879, a work generally considered as marking a turning point in the history of logic. Frege's work remained obscure, however, until Bertrand Russell began to promote it near the turn of the century. The two-dimensional notation Frege developed was never widely adopted and is unused in contemporary texts. From 1890 to 1905, Ernst Schröder published Vorlesungen über die Algebra der Logik in three volumes. This work summarized and extended the work of Boole, De Morgan, and Peirce, and was a comprehensive reference to symbolic logic as it was understood at the end of the 19th century. Foundational theories Concerns that mathematics had not been built on a proper foundation led to the development of axiomatic systems for fundamental areas of mathematics such as arithmetic, analysis, and geometry. In logic, the term arithmetic refers to the theory of the natural numbers. Giuseppe Peano published a set of axioms for arithmetic that came to bear his name (Peano axioms), using a variation of the logical system of Boole and Schröder but adding quantifiers. Peano was unaware of Frege's work at the time. Around the same time Richard Dedekind showed that the natural numbers are uniquely characterized by their induction properties. Dedekind proposed a different characterization, which lacked the formal logical character of Peano's axioms. Dedekind's work, however, proved theorems inaccessible in Peano's system, including the uniqueness of the set of natural numbers (up to isomorphism) and the recursive definitions of addition and multiplication from the successor function and mathematical induction. In the mid-19th century, flaws in Euclid's axioms for geometry became known. In addition to the independence of the parallel postulate, established by Nikolai Lobachevsky in 1826, mathematicians discovered that certain theorems taken for granted by Euclid were not in fact provable from his axioms. Among these is the theorem that a line contains at least two points, or that circles of the same radius whose centers are separated by that radius must intersect. Hilbert developed a complete set of axioms for geometry, building on previous work by Pasch. The success in axiomatizing geometry motivated Hilbert to seek complete axiomatizations of other areas of mathematics, such as the natural numbers and the real line. This would prove to be a major area of research in the first half of the 20th century. The 19th century saw great advances in the theory of real analysis, including theories of convergence of functions and Fourier series. Mathematicians such as Karl Weierstrass began to construct functions that stretched intuition, such as nowhere-differentiable continuous functions. Previous conceptions of a function as a rule for computation, or a smooth graph, were no longer adequate. Weierstrass began to advocate the arithmetization of analysis, which sought to axiomatize analysis using properties of the natural numbers. The modern (ε, δ)-definition of limit and continuous functions was already developed by Bolzano in 1817, but remained relatively unknown. Cauchy in 1821 defined continuity in terms of infinitesimals (see Cours d'Analyse, page 34). In 1858, Dedekind proposed a definition of the real numbers in terms of Dedekind cuts of rational numbers, a definition still employed in contemporary texts. Georg Cantor developed the fundamental concepts of infinite set theory. His early results developed the theory of cardinality and proved that the reals and the natural numbers have different cardinalities. Over the next twenty years, Cantor developed a theory of transfinite numbers in a series of publications. In 1891, he published a new proof of the uncountability of the real numbers that introduced the diagonal argument, and used this method to prove Cantor's theorem that no set can have the same cardinality as its powerset. Cantor believed that every set could be well-ordered, but was unable to produce a proof for this result, leaving it as an open problem in 1895. 20th century In the early decades of the 20th century, the main areas of study were set theory and formal logic. The discovery of paradoxes in informal set theory caused some to wonder whether mathematics itself is inconsistent, and to look for proofs of consistency. In 1900, Hilbert posed a famous list of 23 problems for the next century. The first two of these were to resolve the continuum hypothesis and prove the consistency of elementary arithmetic, respectively; the tenth was to produce a method that could decide whether a multivariate polynomial equation over the integers has a solution. Subsequent work to resolve these problems shaped the direction of mathematical logic, as did the effort to resolve Hilbert's Entscheidungsproblem, posed in 1928. This problem asked for a procedure that would decide, given a formalized mathematical statement, whether the statement is true or false. Set theory and paradoxes Ernst Zermelo gave a proof that every set could be well-ordered, a result Georg Cantor had been unable to obtain. To achieve the proof, Zermelo introduced the axiom of choice, which drew heated debate and research among mathematicians and the pioneers of set theory. The immediate criticism of the method led Zermelo to publish a second exposition of his result, directly addressing criticisms of his proof. This paper led to the general acceptance of the axiom of choice in the mathematics community. Skepticism about the axiom of choice was reinforced by recently discovered paradoxes in naive set theory. Cesare Burali-Forti was the first to state a paradox: the Burali-Forti paradox shows that the collection of all ordinal numbers cannot form a set. Very soon thereafter, Bertrand Russell discovered Russell's paradox in 1901, and Jules Richard discovered Richard's paradox. Zermelo provided the first set of axioms for set theory. These axioms, together with the additional axiom of replacement proposed by Abraham Fraenkel, are now called Zermelo–Fraenkel set theory (ZF). Zermelo's axioms incorporated the principle of limitation of size to avoid Russell's paradox. In 1910, the first volume of Principia Mathematica by Russell and Alfred North Whitehead was published. This seminal work developed the theory of functions and cardinality in a completely formal framework of type theory, which Russell and Whitehead developed in an effort to avoid the paradoxes. Principia Mathematica is considered one of the most influential works of the 20th century, although the framework of type theory did not prove popular as a foundational theory for mathematics. Fraenkel proved that the axiom of choice cannot be proved from the axioms of Zermelo's set theory with urelements. Later work by Paul Cohen showed that the addition of urelements is not needed, and the axiom of choice is unprovable in ZF. Cohen's proof developed the method of forcing, which is now an important tool for establishing independence results in set theory. Symbolic logic Leopold Löwenheim and Thoralf Skolem obtained the Löwenheim–Skolem theorem, which says that first-order logic cannot control the cardinalities of infinite structures. Skolem realized that this theorem would apply to first-order formalizations of set theory, and that it implies any such formalization has a countable model. This counterintuitive fact became known as Skolem's paradox. In his doctoral thesis, Kurt Gödel proved the completeness theorem, which establishes a correspondence between syntax and semantics in first-order logic. Gödel used the completeness theorem to prove the compactness theorem, demonstrating the finitary nature of first-order logical consequence. These results helped establish first-order logic as the dominant logic used by mathematicians. In 1931, Gödel published On Formally Undecidable Propositions of Principia Mathematica and Related Systems, which proved the incompleteness (in a different meaning of the word) of all sufficiently strong, effective first-order theories. This result, known as Gödel's incompleteness theorem, establishes severe limitations on axiomatic foundations for mathematics, striking a strong blow to Hilbert's program. It showed the impossibility of providing a consistency proof of arithmetic within any formal theory of arithmetic. Hilbert, however, did not acknowledge the importance of the incompleteness theorem for some time. Gödel's theorem shows that a consistency proof of any sufficiently strong, effective axiom system cannot be obtained in the system itself, if the system is consistent, nor in any weaker system. This leaves open the possibility of consistency proofs that cannot be formalized within the system they consider. Gentzen proved the consistency of arithmetic using a finitistic system together with a principle of transfinite induction. Gentzen's result introduced the ideas of cut elimination and proof-theoretic ordinals, which became key tools in proof theory. Gödel gave a different consistency proof, which reduces the consistency of classical arithmetic to that of intuitionistic arithmetic in higher types. The first textbook on symbolic logic for the layman was written by Lewis Carroll, author of Alice in Wonderland, in 1896. Beginnings of the other branches Alfred Tarski developed the basics of model theory. Beginning in 1935, a group of prominent mathematicians collaborated under the pseudonym Nicolas Bourbaki to publish Éléments de mathématique, a series of encyclopedic mathematics texts. These texts, written in an austere and axiomatic style, emphasized rigorous presentation and set-theoretic foundations. Terminology coined by these texts, such as the words bijection, injection, and surjection, and the set-theoretic foundations the texts employed, were widely adopted throughout mathematics. The study of computability came to be known as recursion theory or computability theory, because early formalizations by Gödel and Kleene relied on recursive definitions of functions. When these definitions were shown equivalent to Turing's formalization involving Turing machines, it became clear that a new concept – the computable function – had been discovered, and that this definition was robust enough to admit numerous independent characterizations. In his work on the incompleteness theorems in 1931, Gödel lacked a rigorous concept of an effective formal system; he immediately realized that the new definitions of computability could be used for this purpose, allowing him to state the incompleteness theorems in generality that could only be implied in the original paper. Numerous results in recursion theory were obtained in the 1940s by Stephen Cole Kleene and Emil Leon Post. Kleene introduced the concepts of relative computability, foreshadowed by Turing, and the arithmetical hierarchy. Kleene later generalized recursion theory to higher-order functionals. Kleene and Georg Kreisel studied formal versions of intuitionistic mathematics, particularly in the context of proof theory. Formal logical systems At its core, mathematical logic deals with mathematical concepts expressed using formal logical systems. These systems, though they differ in many details, share the common property of considering only expressions in a fixed formal language. The systems of propositional logic and first-order logic are the most widely studied today, because of their applicability to foundations of mathematics and because of their desirable proof-theoretic properties. Stronger classical logics such as second-order logic or infinitary logic are also studied, along with Non-classical logics such as intuitionistic logic. First-order logic First-order logic is a particular formal system of logic. Its syntax involves only finite expressions as well-formed formulas, while its semantics are characterized by the limitation of all quantifiers to a fixed domain of discourse. Early results from formal logic established limitations of first-order logic. The Löwenheim–Skolem theorem (1919) showed that if a set of sentences in a countable first-order language has an infinite model then it has at least one model of each infinite cardinality. This shows that it is impossible for a set of first-order axioms to characterize the natural numbers, the real numbers, or any other infinite structure up to isomorphism. As the goal of early foundational studies was to produce axiomatic theories for all parts of mathematics, this limitation was particularly stark. Gödel's completeness theorem established the equivalence between semantic and syntactic definitions of logical consequence in first-order logic. It shows that if a particular sentence is true in every model that satisfies a particular set of axioms, then there must be a finite deduction of the sentence from the axioms. The compactness theorem first appeared as a lemma in Gödel's proof of the completeness theorem, and it took many years before logicians grasped its significance and began to apply it routinely. It says that a set of sentences has a model if and only if every finite subset has a model, or in other words that an inconsistent set of formulas must have a finite inconsistent subset. The completeness and compactness theorems allow for sophisticated analysis of logical consequence in first-order logic and the development of model theory, and they are a key reason for the prominence of first-order logic in mathematics. Gödel's incompleteness theorems establish additional limits on first-order axiomatizations. The first incompleteness theorem states that for any consistent, effectively given (defined below) logical system that is capable of interpreting arithmetic, there exists a statement that is true (in the sense that it holds for the natural numbers) but not provable within that logical system (and which indeed may fail in some non-standard models of arithmetic which may be consistent with the logical system). For example, in every logical system capable of expressing the Peano axioms, the Gödel sentence holds for the natural numbers but cannot be proved. Here a logical system is said to be effectively given if it is possible to decide, given any formula in the language of the system, whether the formula is an axiom, and one which can express the Peano axioms is called "sufficiently strong." When applied to first-order logic, the first incompleteness theorem implies that any sufficiently strong, consistent, effective first-order theory has models that are not elementarily equivalent, a stronger limitation than the one established by the Löwenheim–Skolem theorem. The second incompleteness theorem states that no sufficiently strong, consistent, effective axiom system for arithmetic can prove its own consistency, which has been interpreted to show that Hilbert's program cannot be reached. Other classical logics Many logics besides first-order logic are studied. These include infinitary logics, which allow for formulas to provide an infinite amount of information, and higher-order logics, which include a portion of set theory directly in their semantics. The most well studied infinitary logic is . In this logic, quantifiers may only be nested to finite depths, as in first-order logic, but formulas may have finite or countably infinite conjunctions and disjunctions within them. Thus, for example, it is possible to say that an object is a whole number using a formula of such as Higher-order logics allow for quantification not only of elements of the domain of discourse, but subsets of the domain of discourse, sets of such subsets, and other objects of higher type. The semantics are defined so that, rather than having a separate domain for each higher-type quantifier to range over, the quantifiers instead range over all objects of the appropriate type. The logics studied before the development of first-order logic, for example Frege's logic, had similar set-theoretic aspects. Although higher-order logics are more expressive, allowing complete axiomatizations of structures such as the natural numbers, they do not satisfy analogues of the completeness and compactness theorems from first-order logic, and are thus less amenable to proof-theoretic analysis. Another type of logics are s that allow inductive definitions, like one writes for primitive recursive functions. One can formally define an extension of first-order logic — a notion which encompasses all logics in this section because they behave like first-order logic in certain fundamental ways, but does not encompass all logics in general, e.g. it does not encompass intuitionistic, modal or fuzzy logic. Lindström's theorem implies that the only extension of first-order logic satisfying both the compactness theorem and the downward Löwenheim–Skolem theorem is first-order logic. Nonclassical and modal logic Modal logics include additional modal operators, such as an operator which states that a particular formula is not only true, but necessarily true. Although modal logic is not often used to axiomatize mathematics, it has been used to study the properties of first-order provability and set-theoretic forcing. Intuitionistic logic was developed by Heyting to study Brouwer's program of intuitionism, in which Brouwer himself avoided formalization. Intuitionistic logic specifically does not include the law of the excluded middle, which states that each sentence is either true or its negation is true. Kleene's work with the proof theory of intuitionistic logic showed that constructive information can be recovered from intuitionistic proofs. For example, any provably total function in intuitionistic arithmetic is computable; this is not true in classical theories of arithmetic such as Peano arithmetic. Algebraic logic Algebraic logic uses the methods of abstract algebra to study the semantics of formal logics. A fundamental example is the use of Boolean algebras to represent truth values in classical propositional logic, and the use of Heyting algebras to represent truth values in intuitionistic propositional logic. Stronger logics, such as first-order logic and higher-order logic, are studied using more complicated algebraic structures such as cylindric algebras. Set theory Set theory is the study of sets, which are abstract collections of objects. Many of the basic notions, such as ordinal and cardinal numbers, were developed informally by Cantor before formal axiomatizations of set theory were developed. The first such axiomatization, due to Zermelo, was extended slightly to become Zermelo–Fraenkel set theory (ZF), which is now the most widely used foundational theory for mathematics. Other formalizations of set theory have been proposed, including von Neumann–Bernays–Gödel set theory (NBG), Morse–Kelley set theory (MK), and New Foundations (NF). Of these, ZF, NBG, and MK are similar in describing a cumulative hierarchy of sets. New Foundations takes a different approach; it allows objects such as the set of all sets at the cost of restrictions on its set-existence axioms. The system of Kripke–Platek set theory is closely related to generalized recursion theory. Two famous statements in set theory are the axiom of choice and the continuum hypothesis. The axiom of choice, first stated by Zermelo, was proved independent of ZF by Fraenkel, but has come to be widely accepted by mathematicians. It states that given a collection of nonempty sets there is a single set C that contains exactly one element from each set in the collection. The set C is said to "choose" one element from each set in the collection. While the ability to make such a choice is considered obvious by some, since each set in the collection is nonempty, the lack of a general, concrete rule by which the choice can be made renders the axiom nonconstructive. Stefan Banach and Alfred Tarski showed that the axiom of choice can be used to decompose a solid ball into a finite number of pieces which can then be rearranged, with no scaling, to make two solid balls of the original size. This theorem, known as the Banach–Tarski paradox, is one of many counterintuitive results of the axiom of choice. The continuum hypothesis, first proposed as a conjecture by Cantor, was listed by David Hilbert as one of his 23 problems in 1900. Gödel showed that the continuum hypothesis cannot be disproven from the axioms of Zermelo–Fraenkel set theory (with or without the axiom of choice), by developing the constructible universe of set theory in which the continuum hypothesis must hold. In 1963, Paul Cohen showed that the continuum hypothesis cannot be proven from the axioms of Zermelo–Fraenkel set theory. This independence result did not completely settle Hilbert's question, however, as it is possible that new axioms for set theory could resolve the hypothesis. Recent work along these lines has been conducted by W. Hugh Woodin, although its importance is not yet clear. Contemporary research in set theory includes the study of large cardinals and determinacy. Large cardinals are cardinal numbers with particular properties so strong that the existence of such cardinals cannot be proved in ZFC. The existence of the smallest large cardinal typically studied, an inaccessible cardinal, already implies the consistency of ZFC. Despite the fact that large cardinals have extremely high cardinality, their existence has many ramifications for the structure of the real line. Determinacy refers to the possible existence of winning strategies for certain two-player games (the games are said to be determined). The existence of these strategies implies structural properties of the real line and other Polish spaces. Model theory Model theory studies the models of various formal theories. Here a theory is a set of formulas in a particular formal logic and signature, while a model is a structure that gives a concrete interpretation of the theory. Model theory is closely related to universal algebra and algebraic geometry, although the methods of model theory focus more on logical considerations than those fields. The set of all models of a particular theory is called an elementary class; classical model theory seeks to determine the properties of models in a particular elementary class, or determine whether certain classes of structures form elementary classes. The method of quantifier elimination can be used to show that definable sets in particular theories cannot be too complicated. Tarski established quantifier elimination for real-closed fields, a result which also shows the theory of the field of real numbers is decidable. He also noted that his methods were equally applicable to algebraically closed fields of arbitrary characteristic. A modern subfield developing from this is concerned with o-minimal structures. Morley's categoricity theorem, proved by Michael D. Morley, states that if a first-order theory in a countable language is categorical in some uncountable cardinality, i.e. all models of this cardinality are isomorphic, then it is categorical in all uncountable cardinalities. A trivial consequence of the continuum hypothesis is that a complete theory with less than continuum many nonisomorphic countable models can have only countably many. Vaught's conjecture, named after Robert Lawson Vaught, says that this is true even independently of the continuum hypothesis. Many special cases of this conjecture have been established. Recursion theory Recursion theory, also called computability theory, studies the properties of computable functions and the Turing degrees, which divide the uncomputable functions into sets that have the same level of uncomputability. Recursion theory also includes the study of generalized computability and definability. Recursion theory grew from the work of Rózsa Péter, Alonzo Church and Alan Turing in the 1930s, which was greatly extended by Kleene and Post in the 1940s. Classical recursion theory focuses on the computability of functions from the natural numbers to the natural numbers. The fundamental results establish a robust, canonical class of computable functions with numerous independent, equivalent characterizations using Turing machines, λ calculus, and other systems. More advanced results concern the structure of the Turing degrees and the lattice of recursively enumerable sets. Generalized recursion theory extends the ideas of recursion theory to computations that are no longer necessarily finite. It includes the study of computability in higher types as well as areas such as hyperarithmetical theory and α-recursion theory. Contemporary research in recursion theory includes the study of applications such as algorithmic randomness, computable model theory, and reverse mathematics, as well as new results in pure recursion theory. Algorithmically unsolvable problems An important subfield of recursion theory studies algorithmic unsolvability; a decision problem or function problem is algorithmically unsolvable if there is no possible computable algorithm that returns the correct answer for all legal inputs to the problem. The first results about unsolvability, obtained independently by Church and Turing in 1936, showed that the Entscheidungsproblem is algorithmically unsolvable. Turing proved this by establishing the unsolvability of the halting problem, a result with far-ranging implications in both recursion theory and computer science. There are many known examples of undecidable problems from ordinary mathematics. The word problem for groups was proved algorithmically unsolvable by Pyotr Novikov in 1955 and independently by W. Boone in 1959. The busy beaver problem, developed by Tibor Radó in 1962, is another well-known example. Hilbert's tenth problem asked for an algorithm to determine whether a multivariate polynomial equation with integer coefficients has a solution in the integers. Partial progress was made by Julia Robinson, Martin Davis and Hilary Putnam. The algorithmic unsolvability of the problem was proved by Yuri Matiyasevich in 1970. Proof theory and constructive mathematics Proof theory is the study of formal proofs in various logical deduction systems. These proofs are represented as formal mathematical objects, facilitating their analysis by mathematical techniques. Several deduction systems are commonly considered, including Hilbert-style deduction systems, systems of natural deduction, and the sequent calculus developed by Gentzen. The study of constructive mathematics, in the context of mathematical logic, includes the study of systems in non-classical logic such as intuitionistic logic, as well as the study of predicative systems. An early proponent of predicativism was Hermann Weyl, who showed it is possible to develop a large part of real analysis using only predicative methods. Because proofs are entirely finitary, whereas truth in a structure is not, it is common for work in constructive mathematics to emphasize provability. The relationship between provability in classical (or nonconstructive) systems and provability in intuitionistic (or constructive, respectively) systems is of particular interest. Results such as the Gödel–Gentzen negative translation show that it is possible to embed (or translate) classical logic into intuitionistic logic, allowing some properties about intuitionistic proofs to be transferred back to classical proofs. Recent developments in proof theory include the study of proof mining by Ulrich Kohlenbach and the study of proof-theoretic ordinals by Michael Rathjen. Applications "Mathematical logic has been successfully applied not only to mathematics and its foundations (G. Frege, B. Russell, D. Hilbert, P. Bernays, H. Scholz, R. Carnap, S. Lesniewski, T. Skolem), but also to physics (R. Carnap, A. Dittrich, B. Russell, C. E. Shannon, A. N. Whitehead, H. Reichenbach, P. Fevrier), to biology (J. H. Woodger, A. Tarski), to psychology (F. B. Fitch, C. G. Hempel), to law and morals (K. Menger, U. Klug, P. Oppenheim), to economics (J. Neumann, O. Morgenstern), to practical questions (E. C. Berkeley, E. Stamm), and even to metaphysics (J. [Jan] Salamucha, H. Scholz, J. M. Bochenski). Its applications to the history of logic have proven extremely fruitful (J. Lukasiewicz, H. Scholz, B. Mates, A. Becker, E. Moody, J. Salamucha, K. Duerr, Z. Jordan, P. Boehner, J. M. Bochenski, S. [Stanislaw] T. Schayer, D. Ingalls)." "Applications have also been made to theology (F. Drewnowski, J. Salamucha, I. Thomas)." Connections with computer science The study of computability theory in computer science is closely related to the study of computability in mathematical logic. There is a difference of emphasis, however. Computer scientists often focus on concrete programming languages and feasible computability, while researchers in mathematical logic often focus on computability as a theoretical concept and on noncomputability. The theory of semantics of programming languages is related to model theory, as is program verification (in particular, model checking). The Curry–Howard correspondence between proofs and programs relates to proof theory, especially intuitionistic logic. Formal calculi such as the lambda calculus and combinatory logic are now studied as idealized programming languages. Computer science also contributes to mathematics by developing techniques for the automatic checking or even finding of proofs, such as automated theorem proving and logic programming. Descriptive complexity theory relates logics to computational complexity. The first significant result in this area, Fagin's theorem (1974) established that NP is precisely the set of languages expressible by sentences of existential second-order logic. Foundations of mathematics In the 19th century, mathematicians became aware of logical gaps and inconsistencies in their field. It was shown that Euclid's axioms for geometry, which had been taught for centuries as an example of the axiomatic method, were incomplete. The use of infinitesimals, and the very definition of function, came into question in analysis, as pathological examples such as Weierstrass' nowhere-differentiable continuous function were discovered. Cantor's study of arbitrary infinite sets also drew criticism. Leopold Kronecker famously stated "God made the integers; all else is the work of man," endorsing a return to the study of finite, concrete objects in mathematics. Although Kronecker's argument was carried forward by constructivists in the 20th century, the mathematical community as a whole rejected them. David Hilbert argued in favor of the study of the infinite, saying "No one shall expel us from the Paradise that Cantor has created." Mathematicians began to search for axiom systems that could be used to formalize large parts of mathematics. In addition to removing ambiguity from previously naive terms such as function, it was hoped that this axiomatization would allow for consistency proofs. In the 19th century, the main method of proving the consistency of a set of axioms was to provide a model for it. Thus, for example, non-Euclidean geometry can be proved consistent by defining point to mean a point on a fixed sphere and line to mean a great circle on the sphere. The resulting structure, a model of elliptic geometry, satisfies the axioms of plane geometry except the parallel postulate. With the development of formal logic, Hilbert asked whether it would be possible to prove that an axiom system is consistent by analyzing the structure of possible proofs in the system, and showing through this analysis that it is impossible to prove a contradiction. This idea led to the study of proof theory. Moreover, Hilbert proposed that the analysis should be entirely concrete, using the term finitary to refer to the methods he would allow but not precisely defining them. This project, known as Hilbert's program, was seriously affected by Gödel's incompleteness theorems, which show that the consistency of formal theories of arithmetic cannot be established using methods formalizable in those theories. Gentzen showed that it is possible to produce a proof of the consistency of arithmetic in a finitary system augmented with axioms of transfinite induction, and the techniques he developed to do so were seminal in proof theory. A second thread in the history of foundations of mathematics involves nonclassical logics and constructive mathematics. The study of constructive mathematics includes many different programs with various definitions of constructive. At the most accommodating end, proofs in ZF set theory that do not use the axiom of choice are called constructive by many mathematicians. More limited versions of constructivism limit themselves to natural numbers, number-theoretic functions, and sets of natural numbers (which can be used to represent real numbers, facilitating the study of mathematical analysis). A common idea is that a concrete means of computing the values of the function must be known before the function itself can be said to exist. In the early 20th century, Luitzen Egbertus Jan Brouwer founded intuitionism as a part of philosophy of mathematics . This philosophy, poorly understood at first, stated that in order for a mathematical statement to be true to a mathematician, that person must be able to intuit the statement, to not only believe its truth but understand the reason for its truth. A consequence of this definition of truth was the rejection of the law of the excluded middle, for there are statements that, according to Brouwer, could not be claimed to be true while their negations also could not be claimed true. Brouwer's philosophy was influential, and the cause of bitter disputes among prominent mathematicians. Later, Kleene and Kreisel would study formalized versions of intuitionistic logic (Brouwer rejected formalization, and presented his work in unformalized natural language). With the advent of the BHK interpretation and Kripke models, intuitionism became easier to reconcile with classical mathematics. See also Argument Informal logic Knowledge representation and reasoning Logic List of computability and complexity topics List of first-order theories List of logic symbols List of mathematical logic topics List of set theory topics Mereology Propositional calculus Well-formed formula Notes References Undergraduate texts Shawn Hedman, A first course in logic: an introduction to model theory, proof theory, computability, and complexity, Oxford University Press, 2004, . Covers logics in close relation with computability theory and complexity theory Graduate texts Kleene, Stephen Cole.(1952), Introduction to Metamathematics. New York: Van Nostrand. (Ishi Press: 2009 reprint). Kleene, Stephen Cole. (1967), Mathematical Logic. John Wiley. Dover reprint, 2002. . Research papers, monographs, texts, and surveys J.D. Sneed, The Logical Structure of Mathematical Physics. Reidel, Dordrecht, 1971 (revised edition 1979). Reprinted as an appendix in Classical papers, texts, and collections Reprinted in English translation as: "Consistency and irrational numbers". Two English translations: 1963 (1901). Essays on the Theory of Numbers. Beman, W. W., ed. and trans. Dover. 1996. In From Kant to Hilbert: A Source Book in the Foundations of Mathematics, 2 vols, Ewald, William B., ed., Oxford University Press: 787–832. Reprinted in English translation as "The notion of 'definite' and the independence of the axiom of choice" in . Frege, Gottlob (1879), Begriffsschrift, eine der arithmetischen nachgebildete Formelsprache des reinen Denkens. Halle a. S.: Louis Nebert. Translation: Concept Script, a formal language of pure thought modelled upon that of arithmetic, by S. Bauer-Mengelberg in . Frege, Gottlob (1884), Die Grundlagen der Arithmetik: eine logisch-mathematische Untersuchung über den Begriff der Zahl. Breslau: W. Koebner. Translation: J. L. Austin, 1974. The Foundations of Arithmetic: A logico-mathematical enquiry into the concept of number, 2nd ed. Blackwell. Reprinted in English translation in Gentzen's Collected works, M. E. Szabo, ed., North-Holland, Amsterdam, 1969. Reprinted in English translation in Gödel's Collected Works, vol II, Solomon Feferman et al., eds. Oxford University Press, 1993. English 1902 edition (The Foundations of Geometry) republished 1980, Open Court, Chicago. Lecture given at the International Congress of Mathematicians, 3 September 1928. Published in English translation as "The Grounding of Elementary Number Theory", in Mancosu 1998, pp. 266–273. Reprinted in English translation as Translated as "On possibilities in the calculus of relatives" in Excerpt reprinted in English translation as "The principles of arithmetic, presented by a new method"in . Reprinted in English translation as "The principles of mathematics and the problems of sets" in . Reprinted in English translation as "Proof that every set can be well-ordered" in . Reprinted in English translation as "A new proof of the possibility of a well-ordering" in . External links Polyvalued logic and Quantity Relation Logic forall x: an introduction to formal logic, a free textbook by . A Problem Course in Mathematical Logic, a free textbook by Stefan Bilaniuk. Detlovs, Vilnis, and Podnieks, Karlis (University of Latvia), Introduction to Mathematical Logic. (hyper-textbook). In the Stanford Encyclopedia of Philosophy: Classical Logic by Stewart Shapiro. First-order Model Theory by Wilfrid Hodges. In the London Philosophy Study Guide: Mathematical Logic Set Theory & Further Logic Philosophy of Mathematics

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https://en.wikipedia.org/wiki/Molecular%20nanotechnology

Molecular nanotechnology

Molecular nanotechnology (MNT) is a technology based on the ability to build structures to complex, atomic specifications by means of mechanosynthesis. This is distinct from nanoscale materials. Based on Richard Feynman's vision of miniature factories using nanomachines to build complex products (including additional nanomachines), this advanced form of nanotechnology (or molecular manufacturing) would make use of positionally-controlled mechanosynthesis guided by molecular machine systems. MNT would involve combining physical principles demonstrated by biophysics, chemistry, other nanotechnologies, and the molecular machinery of life with the systems engineering principles found in modern macroscale factories. Introduction While conventional chemistry uses inexact processes obtaining inexact results, and biology exploits inexact processes to obtain definitive results, molecular nanotechnology would employ original definitive processes to obtain definitive results. The desire in molecular nanotechnology would be to balance molecular reactions in positionally-controlled locations and orientations to obtain desired chemical reactions, and then to build systems by further assembling the products of these reactions. A roadmap for the development of MNT is an objective of a broadly based technology project led by Battelle (the manager of several U.S. National Laboratories) and the Foresight Institute. The roadmap was originally scheduled for completion by late 2006, but was released in January 2008. The Nanofactory Collaboration is a more focused ongoing effort involving 23 researchers from 10 organizations and 4 countries that is developing a practical research agenda specifically aimed at positionally-controlled diamond mechanosynthesis and diamondoid nanofactory development. In August 2005, a task force consisting of 50+ international experts from various fields was organized by the Center for Responsible Nanotechnology to study the societal implications of molecular nanotechnology. Projected applications and capabilities Smart materials and nanosensors Any sort of material designed and engineered at the nanometer scale for a specific task is a smart material. If materials could be designed to respond differently to various molecules, for example, artificial drugs could recognize and render inert specific viruses. self-healing structures would repair small tears in a surface naturally in the same way as human skin. A nanosensor would resemble a smart material, involving a small component within a larger machine that would react to its environment and change in some fundamental, intentional way. A very simple example: a photosensor might passively measure the incident light and discharge its absorbed energy as electricity when the light passes above or below a specified threshold, sending a signal to a larger machine. Such a sensor would supposedly cost less and use less power than a conventional sensor, and yet function usefully in all the same applications — for example, turning on parking lot lights when it gets dark. While smart materials and nanosensors both exemplify useful applications of MNT, they pale in comparison with the complexity of the technology most popularly associated with the term: the replicating nanorobot. Replicating nanorobots MNT nanofacturing is popularly linked with the idea of swarms of coordinated nanoscale robots working together, a popularization of an early proposal by K. Eric Drexler in his 1986 discussions of MNT, but superseded in 1992. In this early proposal, sufficiently capable nanorobots would construct more nanorobots in an artificial environment containing special molecular building blocks. Critics have doubted both the feasibility of self-replicating nanorobots and the feasibility of control if self-replicating nanorobots could be achieved: they cite the possibility of mutations removing any control and favoring reproduction of mutant pathogenic variations. Advocates address the first doubt by pointing out that the first macroscale autonomous machine replicator, made of Lego blocks, was built and operated experimentally in 2002. While there are sensory advantages present at the macroscale compared to the limited sensorium available at the nanoscale, proposals for positionally controlled nanoscale mechanosynthetic fabrication systems employ dead reckoning of tooltips combined with reliable reaction sequence design to ensure reliable results, hence a limited sensorium is no handicap; similar considerations apply to the positional assembly of small nanoparts. Advocates address the second doubt by arguing that bacteria are (of necessity) evolved to evolve, while nanorobot mutation could be actively prevented by common error-correcting techniques. Similar ideas are advocated in the Foresight Guidelines on Molecular Nanotechnology, and a map of the 137-dimensional replicator design space recently published by Freitas and Merkle provides numerous proposed methods by which replicators could, in principle, be safely controlled by good design. However, the concept of suppressing mutation raises the question: How can design evolution occur at the nanoscale without a process of random mutation and deterministic selection? Critics argue that MNT advocates have not provided a substitute for such a process of evolution in this nanoscale arena where conventional sensory-based selection processes are lacking. The limits of the sensorium available at the nanoscale could make it difficult or impossible to winnow successes from failures. Advocates argue that design evolution should occur deterministically and strictly under human control, using the conventional engineering paradigm of modeling, design, prototyping, testing, analysis, and redesign. In any event, since 1992 technical proposals for MNT do not include self-replicating nanorobots, and recent ethical guidelines put forth by MNT advocates prohibit unconstrained self-replication. Medical nanorobots One of the most important applications of MNT would be medical nanorobotics or nanomedicine, an area pioneered by Robert Freitas in numerous books and papers. The ability to design, build, and deploy large numbers of medical nanorobots would, at a minimum, make possible the rapid elimination of disease and the reliable and relatively painless recovery from physical trauma. Medical nanorobots might also make possible the convenient correction of genetic defects, and help to ensure a greatly expanded lifespan. More controversially, medical nanorobots might be used to augment natural human capabilities. One study has reported on how conditions like tumors, arteriosclerosis, blood clots leading to stroke, accumulation of scar tissue and localized pockets of infection can possibly be addressed by employing medical nanorobots. Utility fog Another proposed application of molecular nanotechnology is "utility fog" — in which a cloud of networked microscopic robots (simpler than assemblers) would change its shape and properties to form macroscopic objects and tools in accordance with software commands. Rather than modify the current practices of consuming material goods in different forms, utility fog would simply replace many physical objects. Phased-array optics Yet another proposed application of MNT would be phased-array optics (PAO). However, this appears to be a problem addressable by ordinary nanoscale technology. PAO would use the principle of phased-array millimeter technology but at optical wavelengths. This would permit the duplication of any sort of optical effect but virtually. Users could request holograms, sunrises and sunsets, or floating lasers as the mood strikes. PAO systems were described in BC Crandall's Nanotechnology: Molecular Speculations on Global Abundance in the Brian Wowk article "Phased-Array Optics." Potential social impacts Molecular manufacturing is a potential future subfield of nanotechnology that would make it possible to build complex structures at atomic precision. Molecular manufacturing requires significant advances in nanotechnology, but once achieved could produce highly advanced products at low costs and in large quantities in nanofactories weighing a kilogram or more. When nanofactories gain the ability to produce other nanofactories production may only be limited by relatively abundant factors such as input materials, energy and software. The products of molecular manufacturing could range from cheaper, mass-produced versions of known high-tech products to novel products with added capabilities in many areas of application. Some applications that have been suggested are advanced smart materials, nanosensors, medical nanorobots and space travel. Additionally, molecular manufacturing could be used to cheaply produce highly advanced, durable weapons, which is an area of special concern regarding the impact of nanotechnology. Being equipped with compact computers and motors these could be increasingly autonomous and have a large range of capabilities. According to Chris Phoenix and Mike Treder from the Center for Responsible Nanotechnology as well as Anders Sandberg from the Future of Humanity Institute molecular manufacturing is the application of nanotechnology that poses the most significant global catastrophic risk. Several nanotechnology researchers state that the bulk of risk from nanotechnology comes from the potential to lead to war, arms races and destructive global government. Several reasons have been suggested why the availability of nanotech weaponry may with significant likelihood lead to unstable arms races (compared to e.g. nuclear arms races): (1) A large number of players may be tempted to enter the race since the threshold for doing so is low; (2) the ability to make weapons with molecular manufacturing will be cheap and easy to hide; (3) therefore lack of insight into the other parties' capabilities can tempt players to arm out of caution or to launch preemptive strikes; (4) molecular manufacturing may reduce dependency on international trade, a potential peace-promoting factor; (5) wars of aggression may pose a smaller economic threat to the aggressor since manufacturing is cheap and humans may not be needed on the battlefield. Since self-regulation by all state and non-state actors seems hard to achieve, measures to mitigate war-related risks have mainly been proposed in the area of international cooperation. International infrastructure may be expanded giving more sovereignty to the international level. This could help coordinate efforts for arms control. International institutions dedicated specifically to nanotechnology (perhaps analogously to the International Atomic Energy Agency IAEA) or general arms control may also be designed. One may also jointly make differential technological progress on defensive technologies, a policy that players should usually favour. The Center for Responsible Nanotechnology also suggest some technical restrictions. Improved transparency regarding technological capabilities may be another important facilitator for arms-control. A grey goo is another catastrophic scenario, which was proposed by Eric Drexler in his 1986 book Engines of Creation, has been analyzed by Freitas in "Some Limits to Global Ecophagy by Biovorous Nanoreplicators, with Public Policy Recommendations" and has been a theme in mainstream media and fiction. This scenario involves tiny self-replicating robots that consume the entire biosphere using it as a source of energy and building blocks. Nanotech experts including Drexler now discredit the scenario. According to Chris Phoenix a "So-called grey goo could only be the product of a deliberate and difficult engineering process, not an accident". With the advent of nano-biotech, a different scenario called green goo has been forwarded. Here, the malignant substance is not nanobots but rather self-replicating biological organisms engineered through nanotechnology. Benefits Nanotechnology (or molecular nanotechnology to refer more specifically to the goals discussed here) will let us continue the historical trends in manufacturing right up to the fundamental limits imposed by physical law. It will let us make remarkably powerful molecular computers. It will let us make materials over fifty times lighter than steel or aluminium alloy but with the same strength. We'll be able to make jets, rockets, cars or even chairs that, by today's standards, would be remarkably light, strong, and inexpensive. Molecular surgical tools, guided by molecular computers and injected into the blood stream could find and destroy cancer cells or invading bacteria, unclog arteries, or provide oxygen when the circulation is impaired. Nanotechnology will replace our entire manufacturing base with a new, radically more precise, radically less expensive, and radically more flexible way of making products. The aim is not simply to replace today's computer chip making plants, but also to replace the assembly lines for cars, televisions, telephones, books, surgical tools, missiles, bookcases, airplanes, tractors, and all the rest. The objective is a pervasive change in manufacturing, a change that will leave virtually no product untouched. Economic progress and military readiness in the 21st Century will depend fundamentally on maintaining a competitive position in nanotechnology. Despite the current early developmental status of nanotechnology and molecular nanotechnology, much concern surrounds MNT's anticipated impact on economics and on law. Whatever the exact effects, MNT, if achieved, would tend to reduce the scarcity of manufactured goods and make many more goods (such as food and health aids) manufacturable. MNT should make possible nanomedical capabilities able to cure any medical condition not already cured by advances in other areas. Good health would be common, and poor health of any form would be as rare as smallpox and scurvy are today. Even cryonics would be feasible, as cryopreserved tissue could be fully repaired. Risks Molecular nanotechnology is one of the technologies that some analysts believe could lead to a technological singularity, in which technological growth has accelerated to the point of having unpredictable effects. Some effects could be beneficial, while others could be detrimental, such as the utilization of molecular nanotechnology by an unfriendly artificial general intelligence. Some feel that molecular nanotechnology would have daunting risks. It conceivably could enable cheaper and more destructive conventional weapons. Also, molecular nanotechnology might permit weapons of mass destruction that could self-replicate, as viruses and cancer cells do when attacking the human body. Commentators generally agree that, in the event molecular nanotechnology were developed, its self-replication should be permitted only under very controlled or "inherently safe" conditions. A fear exists that nanomechanical robots, if achieved, and if designed to self-replicate using naturally occurring materials (a difficult task), could consume the entire planet in their hunger for raw materials, or simply crowd out natural life, out-competing it for energy (as happened historically when blue-green algae appeared and outcompeted earlier life forms). Some commentators have referred to this situation as the "grey goo" or "ecophagy" scenario. K. Eric Drexler considers an accidental "grey goo" scenario extremely unlikely and says so in later editions of Engines of Creation. In light of this perception of potential danger, the Foresight Institute, founded by Drexler, has prepared a set of guidelines for the ethical development of nanotechnology. These include the banning of free-foraging self-replicating pseudo-organisms on the Earth's surface, at least, and possibly in other places. Technical issues and criticism The feasibility of the basic technologies analyzed in Nanosystems has been the subject of a formal scientific review by U.S. National Academy of Sciences, and has also been the focus of extensive debate on the internet and in the popular press. Study and recommendations by the U.S. National Academy of Sciences In 2006, U.S. National Academy of Sciences released the report of a study of molecular manufacturing as part of a longer report, A Matter of Size: Triennial Review of the National Nanotechnology Initiative The study committee reviewed the technical content of Nanosystems, and in its conclusion states that no current theoretical analysis can be considered definitive regarding several questions of potential system performance, and that optimal paths for implementing high-performance systems cannot be predicted with confidence. It recommends experimental research to advance knowledge in this area: "Although theoretical calculations can be made today, the eventually attainable range of chemical reaction cycles, error rates, speed of operation, and thermodynamic efficiencies of such bottom-up manufacturing systems cannot be reliably predicted at this time. Thus, the eventually attainable perfection and complexity of manufactured products, while they can be calculated in theory, cannot be predicted with confidence. Finally, the optimum research paths that might lead to systems which greatly exceed the thermodynamic efficiencies and other capabilities of biological systems cannot be reliably predicted at this time. Research funding that is based on the ability of investigators to produce experimental demonstrations that link to abstract models and guide long-term vision is most appropriate to achieve this goal." Assemblers versus nanofactories A section heading in Drexler's Engines of Creation reads "Universal Assemblers", and the following text speaks of multiple types of assemblers which, collectively, could hypothetically "build almost anything that the laws of nature allow to exist." Drexler's colleague Ralph Merkle has noted that, contrary to widespread legend, Drexler never claimed that assembler systems could build absolutely any molecular structure. The endnotes in Drexler's book explain the qualification "almost": "For example, a delicate structure might be designed that, like a stone arch, would self-destruct unless all its pieces were already in place. If there were no room in the design for the placement and removal of a scaffolding, then the structure might be impossible to build. Few structures of practical interest seem likely to exhibit such a problem, however." In 1992, Drexler published Nanosystems: Molecular Machinery, Manufacturing, and Computation, a detailed proposal for synthesizing stiff covalent structures using a table-top factory. Diamondoid structures and other stiff covalent structures, if achieved, would have a wide range of possible applications, going far beyond current MEMS technology. An outline of a path was put forward in 1992 for building a table-top factory in the absence of an assembler. Other researchers have begun advancing tentative, alternative proposed paths for this in the years since Nanosystems was published. Hard versus soft nanotechnology In 2004 Richard Jones wrote Soft Machines (nanotechnology and life), a book for lay audiences published by Oxford University. In this book he describes radical nanotechnology (as advocated by Drexler) as a deterministic/mechanistic idea of nano engineered machines that does not take into account the nanoscale challenges such as wetness, stickiness, Brownian motion, and high viscosity. He also explains what is soft nanotechnology or more appropriately biomimetic nanotechnology which is the way forward, if not the best way, to design functional nanodevices that can cope with all the problems at a nanoscale. One can think of soft nanotechnology as the development of nanomachines that uses the lessons learned from biology on how things work, chemistry to precisely engineer such devices and stochastic physics to model the system and its natural processes in detail. The SmalleyDrexler debate Several researchers, including Nobel Prize winner Dr. Richard Smalley (1943–2005), attacked the notion of universal assemblers, leading to a rebuttal from Drexler and colleagues, and eventually to an exchange of letters. Smalley argued that chemistry is extremely complicated, reactions are hard to control, and that a universal assembler is science fiction. Drexler and colleagues, however, noted that Drexler never proposed universal assemblers able to make absolutely anything, but instead proposed more limited assemblers able to make a very wide variety of things. They challenged the relevance of Smalley's arguments to the more specific proposals advanced in Nanosystems. Also, Smalley argued that nearly all of modern chemistry involves reactions that take place in a solvent (usually water), because the small molecules of a solvent contribute many things, such as lowering binding energies for transition states. Since nearly all known chemistry requires a solvent, Smalley felt that Drexler's proposal to use a high vacuum environment was not feasible. However, Drexler addresses this in Nanosystems by showing mathematically that well designed catalysts can provide the effects of a solvent and can fundamentally be made even more efficient than a solvent/enzyme reaction could ever be. It is noteworthy that, contrary to Smalley's opinion that enzymes require water, "Not only do enzymes work vigorously in anhydrous organic media, but in this unnatural milieu they acquire remarkable properties such as greatly enhanced stability, radically altered substrate and enantiomeric specificities, molecular memory, and the ability to catalyse unusual reactions." Redefining of the word "nanotechnology" For the future, some means have to be found for MNT design evolution at the nanoscale which mimics the process of biological evolution at the molecular scale. Biological evolution proceeds by random variation in ensemble averages of organisms combined with culling of the less-successful variants and reproduction of the more-successful variants, and macroscale engineering design also proceeds by a process of design evolution from simplicity to complexity as set forth somewhat satirically by John Gall: "A complex system that works is invariably found to have evolved from a simple system that worked. . . . A complex system designed from scratch never works and can not be patched up to make it work. You have to start over, beginning with a system that works." A breakthrough in MNT is needed which proceeds from the simple atomic ensembles which can be built with, e.g., an STM to complex MNT systems via a process of design evolution. A handicap in this process is the difficulty of seeing and manipulation at the nanoscale compared to the macroscale which makes deterministic selection of successful trials difficult; in contrast biological evolution proceeds via action of what Richard Dawkins has called the "blind watchmaker" comprising random molecular variation and deterministic reproduction/extinction. At present in 2007 the practice of nanotechnology embraces both stochastic approaches (in which, for example, supramolecular chemistry creates waterproof pants) and deterministic approaches wherein single molecules (created by stochastic chemistry) are manipulated on substrate surfaces (created by stochastic deposition methods) by deterministic methods comprising nudging them with STM or AFM probes and causing simple binding or cleavage reactions to occur. The dream of a complex, deterministic molecular nanotechnology remains elusive. Since the mid-1990s, thousands of surface scientists and thin film technocrats have latched on to the nanotechnology bandwagon and redefined their disciplines as nanotechnology. This has caused much confusion in the field and has spawned thousands of "nano"-papers on the peer reviewed literature. Most of these reports are extensions of the more ordinary research done in the parent fields. The feasibility of the proposals in Nanosystems The feasibility of Drexler's proposals largely depends, therefore, on whether designs like those in Nanosystems could be built in the absence of a universal assembler to build them and would work as described. Supporters of molecular nanotechnology frequently claim that no significant errors have been discovered in Nanosystems since 1992. Even some critics concede that "Drexler has carefully considered a number of physical principles underlying the 'high level' aspects of the nanosystems he proposes and, indeed, has thought in some detail" about some issues. Other critics claim, however, that Nanosystems omits important chemical details about the low-level 'machine language' of molecular nanotechnology. They also claim that much of the other low-level chemistry in Nanosystems requires extensive further work, and that Drexler's higher-level designs therefore rest on speculative foundations. Recent such further work by Freitas and Merkle is aimed at strengthening these foundations by filling the existing gaps in the low-level chemistry. Drexler argues that we may need to wait until our conventional nanotechnology improves before solving these issues: "Molecular manufacturing will result from a series of advances in molecular machine systems, much as the first Moon landing resulted from a series of advances in liquid-fuel rocket systems. We are now in a position like that of the British Interplanetary Society of the 1930s which described how multistage liquid-fueled rockets could reach the Moon and pointed to early rockets as illustrations of the basic principle." However, Freitas and Merkle argue that a focused effort to achieve diamond mechanosynthesis (DMS) can begin now, using existing technology, and might achieve success in less than a decade if their "direct-to-DMS approach is pursued rather than a more circuitous development approach that seeks to implement less efficacious nondiamondoid molecular manufacturing technologies before progressing to diamondoid". To summarize the arguments against feasibility: First, critics argue that a primary barrier to achieving molecular nanotechnology is the lack of an efficient way to create machines on a molecular/atomic scale, especially in the absence of a well-defined path toward a self-replicating assembler or diamondoid nanofactory. Advocates respond that a preliminary research path leading to a diamondoid nanofactory is being developed. A second difficulty in reaching molecular nanotechnology is design. Hand design of a gear or bearing at the level of atoms might take a few to several weeks. While Drexler, Merkle and others have created designs of simple parts, no comprehensive design effort for anything approaching the complexity of a Model T Ford has been attempted. Advocates respond that it is difficult to undertake a comprehensive design effort in the absence of significant funding for such efforts, and that despite this handicap much useful design-ahead has nevertheless been accomplished with new software tools that have been developed, e.g., at Nanorex. In the latest report A Matter of Size: Triennial Review of the National Nanotechnology Initiative put out by the National Academies Press in December 2006 (roughly twenty years after Engines of Creation was published), no clear way forward toward molecular nanotechnology could yet be seen, as per the conclusion on page 108 of that report: "Although theoretical calculations can be made today, the eventually attainable range of chemical reaction cycles, error rates, speed of operation, and thermodynamic efficiencies of such bottom-up manufacturing systems cannot be reliably predicted at this time. Thus, the eventually attainable perfection and complexity of manufactured products, while they can be calculated in theory, cannot be predicted with confidence. Finally, the optimum research paths that might lead to systems which greatly exceed the thermodynamic efficiencies and other capabilities of biological systems cannot be reliably predicted at this time. Research funding that is based on the ability of investigators to produce experimental demonstrations that link to abstract models and guide long-term vision is most appropriate to achieve this goal." This call for research leading to demonstrations is welcomed by groups such as the Nanofactory Collaboration who are specifically seeking experimental successes in diamond mechanosynthesis. The "Technology Roadmap for Productive Nanosystems" aims to offer additional constructive insights. It is perhaps interesting to ask whether or not most structures consistent with physical law can in fact be manufactured. Advocates assert that to achieve most of the vision of molecular manufacturing it is not necessary to be able to build "any structure that is compatible with natural law." Rather, it is necessary to be able to build only a sufficient (possibly modest) subset of such structures—as is true, in fact, of any practical manufacturing process used in the world today, and is true even in biology. In any event, as Richard Feynman once said, "It is scientific only to say what's more likely or less likely, and not to be proving all the time what's possible or impossible." Existing work on diamond mechanosynthesis There is a growing body of peer-reviewed theoretical work on synthesizing diamond by mechanically removing/adding hydrogen atoms and depositing carbon atoms (a process known as mechanosynthesis). This work is slowly permeating the broader nanoscience community and is being critiqued. For instance, Peng et al. (2006) (in the continuing research effort by Freitas, Merkle and their collaborators) reports that the most-studied mechanosynthesis tooltip motif (DCB6Ge) successfully places a C2 carbon dimer on a C(110) diamond surface at both 300 K (room temperature) and 80 K (liquid nitrogen temperature), and that the silicon variant (DCB6Si) also works at 80 K but not at 300 K. Over 100,000 CPU hours were invested in this latest study. The DCB6 tooltip motif, initially described by Merkle and Freitas at a Foresight Conference in 2002, was the first complete tooltip ever proposed for diamond mechanosynthesis and remains the only tooltip motif that has been successfully simulated for its intended function on a full 200-atom diamond surface. The tooltips modeled in this work are intended to be used only in carefully controlled environments (e. g., vacuum). Maximum acceptable limits for tooltip translational and rotational misplacement errors are reported in Peng et al. (2006) -- tooltips must be positioned with great accuracy to avoid bonding the dimer incorrectly. Peng et al. (2006) reports that increasing the handle thickness from 4 support planes of C atoms above the tooltip to 5 planes decreases the resonance frequency of the entire structure from 2.0 THz to 1.8 THz. More importantly, the vibrational footprints of a DCB6Ge tooltip mounted on a 384-atom handle and of the same tooltip mounted on a similarly constrained but much larger 636-atom "crossbar" handle are virtually identical in the non-crossbar directions. Additional computational studies modeling still bigger handle structures are welcome, but the ability to precisely position SPM tips to the requisite atomic accuracy has been repeatedly demonstrated experimentally at low temperature, or even at room temperature constituting a basic existence proof for this capability. Further research to consider additional tooltips will require time-consuming computational chemistry and difficult laboratory work. A working nanofactory would require a variety of well-designed tips for different reactions, and detailed analyses of placing atoms on more complicated surfaces. Although this appears a challenging problem given current resources, many tools will be available to help future researchers: Moore's law predicts further increases in computer power, semiconductor fabrication techniques continue to approach the nanoscale, and researchers grow ever more skilled at using proteins, ribosomes and DNA to perform novel chemistry. Works of fiction In The Diamond Age by Neal Stephenson, diamond can be built directly out of carbon atoms. All sorts of devices from dust-size detection devices to giant diamond zeppelins are constructed atom by atom using only carbon, oxygen, nitrogen and chlorine atoms. In the novel Tomorrow by Andrew Saltzman (), a scientist uses nanorobotics to create a liquid that when inserted into the bloodstream, renders one nearly invincible given that the microscopic machines repair tissue almost instantaneously after it is damaged. In the roleplaying game Splicers by Palladium Books, humanity has succumbed to a "nanobot plague" that causes any object made of a non-precious metal to twist and change shape (sometimes into a type of robot) moments after being touched by a human. The object will then proceed to attack the human. This has forced humanity to develop "biotechnological" devices to replace those previously made of metal. On the television show Mystery Science Theater 3000, the Nanites (voiced variously by Kevin Murphy, Paul Chaplin, Mary Jo Pehl, and Bridget Jones) – are self-replicating, bio-engineered organisms that work on the ship, they are microscopic creatures that reside in the Satellite of Love's computer systems. (They are similar to the creatures in Star Trek: The Next Generation episode "Evolution", which featured "nanites" taking over the Enterprise.) The Nanites made their first appearance in season 8. Based on the concept of nanotechnology, their comical deus ex machina activities included such diverse tasks as instant repair and construction, hairstyling, performing a Nanite variation of a flea circus, conducting a microscopic war, and even destroying the Observers' planet after a dangerously vague request from Mike to "take care of [a] little problem". They also ran a microbrewery. Stargate Atlantis has an enemy made of self-assembling nanorobots, which also convert a planet into grey goo. In the novel "Prey" by Michael Crichton, self replicating nanobots create autonomous nano-swarms with predatory behaviors. The protagonist must stop the swarm before it evolves into a grey goo plague. In the films Avengers Infinity War and Avengers Endgame Tony Stark's Iron Man suit was constructed using nanotechnology. See also Nanochemistry Green nanotechnology Technomimetics References Reference works The primary technical reference work on this topic is Nanosystems: Molecular Machinery, Manufacturing, and Computation, an in-depth, physics-based analysis of a particular class of potential nanomachines and molecular manufacturing systems, with extensive analyses of their feasibility and performance. Nanosystems is closely based on Drexler's MIT doctoral dissertation, "Molecular Machinery and Manufacturing with Applications to Computation". Both works also discuss technology development pathways that begin with scanning probe and biomolecular technologies. Drexler and others extended the ideas of molecular nanotechnology with several other books. Unbounding the Future: the Nanotechnology Revolution and . Unbounding the Future is an easy-to-read book that introduces the ideas of molecular nanotechnology in a not-too-technical way. Other notable works in the same vein are Nanomedicine Vol. I and Vol. IIA by Robert Freitas and Kinematic Self-Replicating Machines by Robert Freitas and Ralph Merkle. Nanotechnology: Molecular Speculations on Global Abundance Edited by BC Crandall () offers interesting ideas for MNT applications. External links Foresight Institute Main Page - Wise-Nano A wiki for MNT Dr. Freitas's bibliography on mechanosynthesis updated here (also includes related techniques based on scanning probe microscopy) The Molecular Assembler website of Robert A. Freitas Jr. Nanotechnology Now Nanotechnology basics, news, and general information Eric Drexler's personal website and digital archive National Nanotechnology Initiative Institute for Molecular Manufacturing Accelerating Future's MNT articles Nanotechnology Robotics Emerging technologies Self-replication

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https://en.wikipedia.org/wiki/Microelectromechanical%20systems

Microelectromechanical systems

Microelectromechanical systems (MEMS), also written as micro-electro-mechanical systems (or microelectronic and microelectromechanical systems) and the related micromechatronics and microsystems constitute the technology of microscopic devices, particularly those with moving parts. They merge at the nanoscale into nanoelectromechanical systems (NEMS) and nanotechnology. MEMS are also referred to as micromachines in Japan and microsystem technology (MST) in Europe. MEMS are made up of components between 1 and 100 micrometers in size (i.e., 0.001 to 0.1 mm), and MEMS devices generally range in size from 20 micrometres to a millimetre (i.e., 0.02 to 1.0 mm), although components arranged in arrays (e.g., digital micromirror devices) can be more than 1000 mm2. They usually consist of a central unit that processes data (an integrated circuit chip such as microprocessor) and several components that interact with the surroundings (such as microsensors). Because of the large surface area to volume ratio of MEMS, forces produced by ambient electromagnetism (e.g., electrostatic charges and magnetic moments), and fluid dynamics (e.g., surface tension and viscosity) are more important design considerations than with larger scale mechanical devices. MEMS technology is distinguished from molecular nanotechnology or molecular electronics in that the latter two must also consider surface chemistry. The potential of very small machines was appreciated before the technology existed that could make them (see, for example, Richard Feynman's famous 1959 lecture There's Plenty of Room at the Bottom). MEMS became practical once they could be fabricated using modified semiconductor device fabrication technologies, normally used to make electronics. These include molding and plating, wet etching (KOH, TMAH) and dry etching (RIE and DRIE), electrical discharge machining (EDM), and other technologies capable of manufacturing small devices. History MEMS technology has roots in the silicon revolution, which can be traced back to two important silicon semiconductor inventions from 1959: the monolithic integrated circuit (IC) chip by Robert Noyce at Fairchild Semiconductor, and the MOSFET (metal-oxide-semiconductor field-effect transistor, or MOS transistor) by Mohamed M. Atalla and Dawon Kahng at Bell Labs. MOSFET scaling, the miniaturisation of MOSFETs on IC chips, led to the miniaturisation of electronics (as predicted by Moore's law and Dennard scaling). This laid the foundations for the miniaturisation of mechanical systems, with the development of micromachining technology based on silicon semiconductor technology, as engineers began realizing that silicon chips and MOSFETs could interact and communicate with the surroundings and process things such as chemicals, motions and light. One of the first silicon pressure sensors was isotropically micromachined by Honeywell in 1962. An early example of a MEMS device is the resonant-gate transistor, an adaptation of the MOSFET, developed by Harvey C. Nathanson in 1965. Another early example is the resonistor, an electromechanical monolithic resonator patented by Raymond J. Wilfinger between 1966 and 1971. During the 1970s to early 1980s, a number of MOSFET microsensors were developed for measuring physical, chemical, biological and environmental parameters. Types There are two basic types of MEMS switch technology: capacitive and ohmic. A capacitive MEMS switch is developed using a moving plate or sensing element, which changes the capacitance. Ohmic switches are controlled by electrostatically controlled cantilevers. Ohmic MEMS switches can fail from metal fatigue of the MEMS actuator (cantilever) and contact wear, since cantilevers can deform over time. Materials for MEMS manufacturing The fabrication of MEMS evolved from the process technology in semiconductor device fabrication, i.e. the basic techniques are deposition of material layers, patterning by photolithography and etching to produce the required shapes. Silicon Silicon is the material used to create most integrated circuits used in consumer electronics in the modern industry. The economies of scale, ready availability of inexpensive high-quality materials, and ability to incorporate electronic functionality make silicon attractive for a wide variety of MEMS applications. Silicon also has significant advantages engendered through its material properties. In single crystal form, silicon is an almost perfect Hookean material, meaning that when it is flexed there is virtually no hysteresis and hence almost no energy dissipation. As well as making for highly repeatable motion, this also makes silicon very reliable as it suffers very little fatigue and can have service lifetimes in the range of billions to trillions of cycles without breaking. Semiconductor nanostructures based on silicon are gaining increasing importance in the field of microelectronics and MEMS in particular. Silicon nanowires, fabricated through the thermal oxidation of silicon, are of further interest in electrochemical conversion and storage, including nanowire batteries and photovoltaic systems. Polymers Even though the electronics industry provides an economy of scale for the silicon industry, crystalline silicon is still a complex and relatively expensive material to produce. Polymers on the other hand can be produced in huge volumes, with a great variety of material characteristics. MEMS devices can be made from polymers by processes such as injection molding, embossing or stereolithography and are especially well suited to microfluidic applications such as disposable blood testing cartridges. Metals Metals can also be used to create MEMS elements. While metals do not have some of the advantages displayed by silicon in terms of mechanical properties, when used within their limitations, metals can exhibit very high degrees of reliability. Metals can be deposited by electroplating, evaporation, and sputtering processes. Commonly used metals include gold, nickel, aluminium, copper, chromium, titanium, tungsten, platinum, and silver. Ceramics The nitrides of silicon, aluminium and titanium as well as silicon carbide and other ceramics are increasingly applied in MEMS fabrication due to advantageous combinations of material properties. AlN crystallizes in the wurtzite structure and thus shows pyroelectric and piezoelectric properties enabling sensors, for instance, with sensitivity to normal and shear forces. TiN, on the other hand, exhibits a high electrical conductivity and large elastic modulus, making it possible to implement electrostatic MEMS actuation schemes with ultrathin beams. Moreover, the high resistance of TiN against biocorrosion qualifies the material for applications in biogenic environments. The figure shows an electron-microscopic picture of a MEMS biosensor with a 50 nm thin bendable TiN beam above a TiN ground plate. Both can be driven as opposite electrodes of a capacitor, since the beam is fixed in electrically isolating side walls. When a fluid is suspended in the cavity its viscosity may be derived from bending the beam by electrical attraction to the ground plate and measuring the bending velocity. MEMS basic processes Deposition processes One of the basic building blocks in MEMS processing is the ability to deposit thin films of material with a thickness anywhere between one micrometre, to about 100 micrometres. The NEMS process is the same, although the measurement of film deposition ranges from a few nanometres to one micrometre. There are two types of deposition processes, as follows. Physical deposition Physical vapor deposition ("PVD") consists of a process in which a material is removed from a target, and deposited on a surface. Techniques to do this include the process of sputtering, in which an ion beam liberates atoms from a target, allowing them to move through the intervening space and deposit on the desired substrate, and evaporation, in which a material is evaporated from a target using either heat (thermal evaporation) or an electron beam (e-beam evaporation) in a vacuum system. Chemical deposition Chemical deposition techniques include chemical vapor deposition (CVD), in which a stream of source gas reacts on the substrate to grow the material desired. This can be further divided into categories depending on the details of the technique, for example LPCVD (low-pressure chemical vapor deposition) and PECVD (plasma-enhanced chemical vapor deposition). Oxide films can also be grown by the technique of thermal oxidation, in which the (typically silicon) wafer is exposed to oxygen and/or steam, to grow a thin surface layer of silicon dioxide. Patterning Patterning in MEMS is the transfer of a pattern into a material. Lithography Lithography in MEMS context is typically the transfer of a pattern into a photosensitive material by selective exposure to a radiation source such as light. A photosensitive material is a material that experiences a change in its physical properties when exposed to a radiation source. If a photosensitive material is selectively exposed to radiation (e.g. by masking some of the radiation) the pattern of the radiation on the material is transferred to the material exposed, as the properties of the exposed and unexposed regions differs. This exposed region can then be removed or treated providing a mask for the underlying substrate. Photolithography is typically used with metal or other thin film deposition, wet and dry etching. Sometimes, photolithography is used to create structure without any kind of post etching. One example is SU8 based lens where SU8 based square blocks are generated. Then the photoresist is melted to form a semi-sphere which acts as a lens. Electron beam lithography Electron beam lithography (often abbreviated as e-beam lithography) is the practice of scanning a beam of electrons in a patterned fashion across a surface covered with a film (called the resist), ("exposing" the resist) and of selectively removing either exposed or non-exposed regions of the resist ("developing"). The purpose, as with photolithography, is to create very small structures in the resist that can subsequently be transferred to the substrate material, often by etching. It was developed for manufacturing integrated circuits, and is also used for creating nanotechnology architectures. The primary advantage of electron beam lithography is that it is one of the ways to beat the diffraction limit of light and make features in the nanometer range. This form of maskless lithography has found wide usage in photomask-making used in photolithography, low-volume production of semiconductor components, and research & development. The key limitation of electron beam lithography is throughput, i.e., the very long time it takes to expose an entire silicon wafer or glass substrate. A long exposure time leaves the user vulnerable to beam drift or instability which may occur during the exposure. Also, the turn-around time for reworking or re-design is lengthened unnecessarily if the pattern is not being changed the second time. Ion beam lithography It is known that focused-ion beam lithography has the capability of writing extremely fine lines (less than 50 nm line and space has been achieved) without proximity effect. However, because the writing field in ion-beam lithography is quite small, large area patterns must be created by stitching together the small fields. Ion track technology Ion track technology is a deep cutting tool with a resolution limit around 8 nm applicable to radiation resistant minerals, glasses and polymers. It is capable of generating holes in thin films without any development process. Structural depth can be defined either by ion range or by material thickness. Aspect ratios up to several 104 can be reached. The technique can shape and texture materials at a defined inclination angle. Random pattern, single-ion track structures and an aimed pattern consisting of individual single tracks can be generated. X-ray lithography X-ray lithography is a process used in the electronic industry to selectively remove parts of a thin film. It uses X-rays to transfer a geometric pattern from a mask to a light-sensitive chemical photoresist, or simply "resist", on the substrate. A series of chemical treatments then engraves the produced pattern into the material underneath the photoresist. Diamond patterning A simple way to carve or create patterns on the surface of nanodiamonds without damaging them could lead to a new generation of photonic devices. Diamond patterning is a method of forming diamond MEMS. It is achieved by the lithographic application of diamond films to a substrate such as silicon. The patterns can be formed by selective deposition through a silicon dioxide mask, or by deposition followed by micromachining or focused ion beam milling. Etching processes There are two basic categories of etching processes: wet etching and dry etching. In the former, the material is dissolved when immersed in a chemical solution. In the latter, the material is sputtered or dissolved using reactive ions or a vapor phase etchant. Wet etching Wet chemical etching consists in selective removal of material by dipping a substrate into a solution that dissolves it. The chemical nature of this etching process provides a good selectivity, which means the etching rate of the target material is considerably higher than the mask material if selected carefully. Isotropic etching Etching progresses at the same speed in all directions. Long and narrow holes in a mask will produce v-shaped grooves in the silicon. The surface of these grooves can be atomically smooth if the etch is carried out correctly, with dimensions and angles being extremely accurate. Anisotropic etching Some single crystal materials, such as silicon, will have different etching rates depending on the crystallographic orientation of the substrate. This is known as anisotropic etching and one of the most common examples is the etching of silicon in KOH (potassium hydroxide), where Si <111> planes etch approximately 100 times slower than other planes (crystallographic orientations). Therefore, etching a rectangular hole in a (100)-Si wafer results in a pyramid shaped etch pit with 54.7° walls, instead of a hole with curved sidewalls as with isotropic etching. HF etching Hydrofluoric acid is commonly used as an aqueous etchant for silicon dioxide (, also known as BOX for SOI), usually in 49% concentrated form, 5:1, 10:1 or 20:1 BOE (buffered oxide etchant) or BHF (Buffered HF). They were first used in medieval times for glass etching. It was used in IC fabrication for patterning the gate oxide until the process step was replaced by RIE. Hydrofluoric acid is considered one of the more dangerous acids in the cleanroom. It penetrates the skin upon contact and it diffuses straight to the bone. Therefore, the damage is not felt until it is too late. Electrochemical etching Electrochemical etching (ECE) for dopant-selective removal of silicon is a common method to automate and to selectively control etching. An active p-n diode junction is required, and either type of dopant can be the etch-resistant ("etch-stop") material. Boron is the most common etch-stop dopant. In combination with wet anisotropic etching as described above, ECE has been used successfully for controlling silicon diaphragm thickness in commercial piezoresistive silicon pressure sensors. Selectively doped regions can be created either by implantation, diffusion, or epitaxial deposition of silicon. Dry etching Vapor etching Xenon difluoride Xenon difluoride () is a dry vapor phase isotropic etch for silicon originally applied for MEMS in 1995 at University of California, Los Angeles. Primarily used for releasing metal and dielectric structures by undercutting silicon, has the advantage of a stiction-free release unlike wet etchants. Its etch selectivity to silicon is very high, allowing it to work with photoresist, , silicon nitride, and various metals for masking. Its reaction to silicon is "plasmaless", is purely chemical and spontaneous and is often operated in pulsed mode. Models of the etching action are available, and university laboratories and various commercial tools offer solutions using this approach. Plasma etching Modern VLSI processes avoid wet etching, and use plasma etching instead. Plasma etchers can operate in several modes by adjusting the parameters of the plasma. Ordinary plasma etching operates between 0.1 and 5 Torr. (This unit of pressure, commonly used in vacuum engineering, equals approximately 133.3 pascals.) The plasma produces energetic free radicals, neutrally charged, that react at the surface of the wafer. Since neutral particles attack the wafer from all angles, this process is isotropic. Plasma etching can be isotropic, i.e., exhibiting a lateral undercut rate on a patterned surface approximately the same as its downward etch rate, or can be anisotropic, i.e., exhibiting a smaller lateral undercut rate than its downward etch rate. Such anisotropy is maximized in deep reactive ion etching. The use of the term anisotropy for plasma etching should not be conflated with the use of the same term when referring to orientation-dependent etching. The source gas for the plasma usually contains small molecules rich in chlorine or fluorine. For instance, carbon tetrachloride () etches silicon and aluminium, and trifluoromethane etches silicon dioxide and silicon nitride. A plasma containing oxygen is used to oxidize ("ash") photoresist and facilitate its removal. Ion milling, or sputter etching, uses lower pressures, often as low as 10−4 Torr (10 mPa). It bombards the wafer with energetic ions of noble gases, often Ar+, which knock atoms from the substrate by transferring momentum. Because the etching is performed by ions, which approach the wafer approximately from one direction, this process is highly anisotropic. On the other hand, it tends to display poor selectivity. Reactive-ion etching (RIE) operates under conditions intermediate between sputter and plasma etching (between 10–3 and 10−1 Torr). Deep reactive-ion etching (DRIE) modifies the RIE technique to produce deep, narrow features. Sputtering Reactive ion etching (RIE) In reactive-ion etching (RIE), the substrate is placed inside a reactor, and several gases are introduced. A plasma is struck in the gas mixture using an RF power source, which breaks the gas molecules into ions. The ions accelerate towards, and react with, the surface of the material being etched, forming another gaseous material. This is known as the chemical part of reactive ion etching. There is also a physical part, which is similar to the sputtering deposition process. If the ions have high enough energy, they can knock atoms out of the material to be etched without a chemical reaction. It is a very complex task to develop dry etch processes that balance chemical and physical etching, since there are many parameters to adjust. By changing the balance it is possible to influence the anisotropy of the etching, since the chemical part is isotropic and the physical part highly anisotropic the combination can form sidewalls that have shapes from rounded to vertical. Deep RIE (DRIE) is a special subclass of RIE that is growing in popularity. In this process, etch depths of hundreds of micrometers are achieved with almost vertical sidewalls. The primary technology is based on the so-called "Bosch process", named after the German company Robert Bosch, which filed the original patent, where two different gas compositions alternate in the reactor. Currently, there are two variations of the DRIE. The first variation consists of three distinct steps (the original Bosch process) while the second variation only consists of two steps. In the first variation, the etch cycle is as follows: (i) isotropic etch; (ii) passivation; (iii) anisotropic etch for floor cleaning. In the 2nd variation, steps (i) and (iii) are combined. Both variations operate similarly. The creates a polymer on the surface of the substrate, and the second gas composition ( and ) etches the substrate. The polymer is immediately sputtered away by the physical part of the etching, but only on the horizontal surfaces and not the sidewalls. Since the polymer only dissolves very slowly in the chemical part of the etching, it builds up on the sidewalls and protects them from etching. As a result, etching aspect ratios of 50 to 1 can be achieved. The process can easily be used to etch completely through a silicon substrate, and etch rates are 3–6 times higher than wet etching. Die preparation After preparing a large number of MEMS devices on a silicon wafer, individual dies have to be separated, which is called die preparation in semiconductor technology. For some applications, the separation is preceded by wafer backgrinding in order to reduce the wafer thickness. Wafer dicing may then be performed either by sawing using a cooling liquid or a dry laser process called stealth dicing. MEMS manufacturing technologies Bulk micromachining Bulk micromachining is the oldest paradigm of silicon-based MEMS. The whole thickness of a silicon wafer is used for building the micro-mechanical structures. Silicon is machined using various etching processes. Anodic bonding of glass plates or additional silicon wafers is used for adding features in the third dimension and for hermetic encapsulation. Bulk micromachining has been essential in enabling high performance pressure sensors and accelerometers that changed the sensor industry in the 1980s and 90's. Surface micromachining Surface micromachining uses layers deposited on the surface of a substrate as the structural materials, rather than using the substrate itself. Surface micromachining was created in the late 1980s to render micromachining of silicon more compatible with planar integrated circuit technology, with the goal of combining MEMS and integrated circuits on the same silicon wafer. The original surface micromachining concept was based on thin polycrystalline silicon layers patterned as movable mechanical structures and released by sacrificial etching of the underlying oxide layer. Interdigital comb electrodes were used to produce in-plane forces and to detect in-plane movement capacitively. This MEMS paradigm has enabled the manufacturing of low cost accelerometers for e.g. automotive air-bag systems and other applications where low performance and/or high g-ranges are sufficient. Analog Devices has pioneered the industrialization of surface micromachining and has realized the co-integration of MEMS and integrated circuits. Thermal oxidation To control the size of micro and nano-scale components, the use of so-called etchless processes is often applied. This approach to MEMS fabrication relies mostly on the oxidation of silicon, as described by the Deal-Grove model. Thermal oxidation processes are used to produced diverse silicon structures with highly precise dimensional control. Devices including optical frequency combs, and silicon MEMS pressure sensors, have been produced through the use of thermal oxidation processes to fine-tune silicon structures in one or two dimensions. Thermal oxidation is of particular value in the fabrication of silicon nanowires, which are widely employed in MEMS systems as both mechanical and electrical components. High aspect ratio (HAR) silicon micromachining Both bulk and surface silicon micromachining are used in the industrial production of sensors, ink-jet nozzles, and other devices. But in many cases the distinction between these two has diminished. A new etching technology, deep reactive-ion etching, has made it possible to combine good performance typical of bulk micromachining with comb structures and in-plane operation typical of surface micromachining. While it is common in surface micromachining to have structural layer thickness in the range of 2 µm, in HAR silicon micromachining the thickness can be from 10 to 100 µm. The materials commonly used in HAR silicon micromachining are thick polycrystalline silicon, known as epi-poly, and bonded silicon-on-insulator (SOI) wafers although processes for bulk silicon wafer also have been created (SCREAM). Bonding a second wafer by glass frit bonding, anodic bonding or alloy bonding is used to protect the MEMS structures. Integrated circuits are typically not combined with HAR silicon micromachining. Applications Some common commercial applications of MEMS include: Inkjet printers, which use piezoelectrics or thermal bubble ejection to deposit ink on paper. Accelerometers in modern cars for a large number of purposes including airbag deployment and electronic stability control. Inertial measurement units (IMUs): MEMS accelerometers MEMS gyroscopes in remote controlled, or autonomous, helicopters, planes and multirotors (also known as drones), used for automatically sensing and balancing flying characteristics of roll, pitch and yaw. MEMS magnetic field sensor (magnetometer) may also be incorporated in such devices to provide directional heading. MEMS inertial navigation systems (INSs) of modern cars, airplanes, submarines and other vehicles to detect yaw, pitch, and roll; for example, the autopilot of an airplane. Accelerometers in consumer electronics devices such as game controllers (Nintendo Wii), personal media players / cell phones (virtually all smartphones, various HTC PDA models) and a number of digital cameras (various Canon Digital IXUS models). Also used in PCs to park the hard disk head when free-fall is detected, to prevent damage and data loss. MEMS barometers MEMS microphones in portable devices, e.g., mobile phones, head sets and laptops. The market for smart microphones includes smartphones, wearable devices, smart home and automotive applications. Precision temperature-compensated resonators in real-time clocks. Silicon pressure sensors e.g., car tire pressure sensors, and disposable blood pressure sensors Displays e.g., the digital micromirror device (DMD) chip in a projector based on DLP technology, which has a surface with several hundred thousand micromirrors or single micro-scanning-mirrors also called microscanners Optical switching technology, which is used for switching technology and alignment for data communications Bio-MEMS applications in medical and health related technologies including lab-on-a-chip, biosensors, chemosensors as well as embedded components of medical devices e.g. stents. Interferometric modulator display (IMOD) applications in consumer electronics (primarily displays for mobile devices), used to create interferometric modulation − reflective display technology as found in mirasol displays Fluid acceleration, such as for micro-cooling Micro-scale energy harvesting including piezoelectric, electrostatic and electromagnetic micro harvesters. Micromachined ultrasound transducers. MEMS-based loudspeakers focusing on applications such as in-ear headphones and hearing aids MEMS oscillators MEMS-based scanning probe microscopes including atomic force microscopes Industry structure The global market for micro-electromechanical systems, which includes products such as automobile airbag systems, display systems and inkjet cartridges totaled $40 billion in 2006 according to Global MEMS/Microsystems Markets and Opportunities, a research report from SEMI and Yole Development and is forecasted to reach $72 billion by 2011. Companies with strong MEMS programs come in many sizes. Larger firms specialize in manufacturing high volume inexpensive components or packaged solutions for end markets such as automobiles, biomedical, and electronics. Smaller firms provide value in innovative solutions and absorb the expense of custom fabrication with high sales margins. Both large and small companies typically invest in R&D to explore new MEMS technology. The market for materials and equipment used to manufacture MEMS devices topped $1 billion worldwide in 2006. Materials demand is driven by substrates, making up over 70 percent of the market, packaging coatings and increasing use of chemical mechanical planarization (CMP). While MEMS manufacturing continues to be dominated by used semiconductor equipment, there is a migration to 200 mm lines and select new tools, including etch and bonding for certain MEMS applications. See also Cantilever - one of the most common forms of MEMS Electrostatic motors used where coils are difficult to fabricate Electromechanical modeling Kelvin probe force microscope MEMS sensor generations MEMS thermal actuator, MEMS actuation created by thermal expansion Microoptoelectromechanical systems (MOEMS), MEMS including optical elements Microoptomechanical systems (MOMS), a class of MEMS which use optical and mechanical, but not electronic components Neural dust - millimeter-sized devices operated as wirelessly powered nerve sensors Photoelectrowetting, MEMS optical actuation using photo-sensitive wetting Micropower, hydrogen generators, gas turbines, and electrical generators made of etched silicon Millipede memory, a MEMS technology for non-volatile data storage of more than a terabit per square inch Nanoelectromechanical systems are similar to MEMS but smaller Scratch drive actuator, MEMS actuation using repeatedly applied voltage differences References Further reading Journal of Micro and Nanotechnique Microsystem Technologies, published by Springer Publishing, Journal homepage External links Transducers Mechanical engineering Electrical engineering Microtechnology Microelectronic and microelectromechanical systems Articles containing video clips

19639

https://en.wikipedia.org/wiki/Marvin%20Minsky

Marvin Minsky

Marvin Lee Minsky (August 9, 1927 – January 24, 2016) was an American cognitive and computer scientist concerned largely with research of artificial intelligence (AI), co-founder of the Massachusetts Institute of Technology's AI laboratory, and author of several texts concerning AI and philosophy. Minsky received many accolades and honors, including the 1969 Turing Award. Biography Marvin Lee Minsky was born in New York City, to an eye surgeon father, Henry, and to a mother, Fannie (Reiser), who was a Zionist activist. His family was Jewish. He attended the Ethical Culture Fieldston School and the Bronx High School of Science. He later attended Phillips Academy in Andover, Massachusetts. He then served in the US Navy from 1944 to 1945. He received a B.A. in mathematics from Harvard University in 1950 and a Ph.D. in mathematics from Princeton University in 1954. His doctoral dissertation was titled "Theory of neural-analog reinforcement systems and its application to the brain-model problem." He was a Junior Fellow of the Harvard Society of Fellows from 1954 to 1957. He was on the MIT faculty from 1958 to his death. He joined the staff at MIT Lincoln Laboratory in 1958, and a year later he and John McCarthy initiated what is, , named the MIT Computer Science and Artificial Intelligence Laboratory. He was the Toshiba Professor of Media Arts and Sciences, and professor of electrical engineering and computer science. Contributions in computer science Minsky's inventions include the first head-mounted graphical display (1963) and the confocal microscope (1957, a predecessor to today's widely used confocal laser scanning microscope). He developed, with Seymour Papert, the first Logo "turtle". Minsky also built, in 1951, the first randomly wired neural network learning machine, SNARC. In 1962, Minsky worked in small universal Turing machines and published his well-known 7-state, 4-symbol machine. Minsky's book Perceptrons (written with Seymour Papert) attacked the work of Frank Rosenblatt, and became the foundational work in the analysis of artificial neural networks. The book is the center of a controversy in the history of AI, as some claim it to have had great importance in discouraging research of neural networks in the 1970s, and contributing to the so-called "AI winter". He also founded several other AI models. His book A framework for representing knowledge created a new paradigm in programming. While his Perceptrons is now more a historical than practical book, the theory of frames is in wide use. Minsky also wrote of the possibility that extraterrestrial life may think like humans, permitting communication. In the early 1970s, at the MIT Artificial Intelligence Lab, Minsky and Papert started developing what came to be known as the Society of Mind theory. The theory attempts to explain how what we call intelligence could be a product of the interaction of non-intelligent parts. Minsky says that the biggest source of ideas about the theory came from his work in trying to create a machine that uses a robotic arm, a video camera, and a computer to build with children's blocks. In 1986, Minsky published The Society of Mind, a comprehensive book on the theory which, unlike most of his previously published work, was written for the general public. In November 2006, Minsky published The Emotion Machine, a book that critiques many popular theories of how human minds work and suggests alternative theories, often replacing simple ideas with more complex ones. Recent drafts of the book are freely available from his webpage. Role in popular culture Minsky was an adviser on Stanley Kubrick's movie 2001: A Space Odyssey; one of the movie's characters, Victor Kaminski, was named in Minsky's honor. Minsky is mentioned explicitly in Arthur C. Clarke's derivative novel of the same name, where he is portrayed as achieving a crucial break-through in artificial intelligence in the then-future 1980s, paving the way for HAL 9000 in the early 21st century: Personal life In 1952, Minsky married pediatrician Gloria Rudisch; together they had three children. Minsky was a talented improvisational pianist who published musings on the relations between music and psychology. Opinions Minsky was an atheist. He was a signatory to the Scientists' Open Letter on Cryonics. He was a critic of the Loebner Prize for conversational robots, and argued that a fundamental difference between humans and machines was that while humans are machines, they are machines in which intelligence emerges from the interplay of the many unintelligent but semi-autonomous agents that comprise the brain. He argued that "somewhere down the line, some computers will become more intelligent than most people," but that it was very hard to predict how fast progress would be. He cautioned that an artificial superintelligence designed to solve an innocuous mathematical problem might decide to assume control of Earth's resources to build supercomputers to help achieve its goal, but believed that such negative scenarios are "hard to take seriously" because he felt confident that AI would go through a lot of testing before being deployed. Association with Jeffrey Epstein Minsky received a $100,000 research grant from Jeffrey Epstein in 2002, four years before Epstein's first arrest for sex offenses; it was the first from Epstein to MIT. Minsky received no further research grants from him. Minsky organized two academic symposia on Epstein's private island Little Saint James, one in 2002 and another in 2011, after Epstein was a registered sex offender. Virginia Giuffre testified in a 2015 deposition in her defamation lawsuit against Epstein's associate Ghislaine Maxwell that Maxwell "directed" her to have sex with Minsky among others. There has been no allegation that sex between them took place nor a lawsuit against Minsky's estate. Minsky's widow, Gloria Rudisch, says that he could not have had sex with any of the women at Epstein's residences, as they were always together during all of the visits to Epstein's residences. Death In January 2016 Minsky died of a cerebral hemorrhage, at the age of 88. Minsky was a member of Alcor Life Extension Foundation's Scientific Advisory Board. Alcor will neither confirm nor deny whether Minsky was cryonically preserved. Bibliography (selected) 1967 – Computation: Finite and Infinite Machines, Prentice-Hall 1986 – The Society of Mind 2006 – The Emotion Machine: Commonsense Thinking, Artificial Intelligence, and the Future of the Human Mind Awards and affiliations Minsky won the Turing Award (the greatest distinction in computer science) in 1969, the Golden Plate Award of the American Academy of Achievement in 1982, the Japan Prize in 1990, the IJCAI Award for Research Excellence for 1991, and the Benjamin Franklin Medal from the Franklin Institute for 2001. In 2006, he was inducted as a Fellow of the Computer History Museum "for co-founding the field of artificial intelligence, creating early neural networks and robots, and developing theories of human and machine cognition." In 2011, Minsky was inducted into IEEE Intelligent Systems' AI Hall of Fame for the "significant contributions to the field of AI and intelligent systems". In 2014, Minsky won the Dan David Prize for "Artificial Intelligence, the Digital Mind". He was also awarded with the 2013 BBVA Foundation Frontiers of Knowledge Award in the Information and Communication Technologies category. Minsky was affiliated with the following organizations: United States National Academy of Engineering United States National Academy of Sciences Extropy Institute's Council of Advisors Alcor Life Extension Foundation's Scientific Advisory Board kynamatrix Research Network's Board of Directors Media appearances Future Fantastic (1996) Machine Dreams (1988) See also List of pioneers in computer science Notes References External links Oral history interview with Marvin Minsky at Charles Babbage Institute, University of Minnesota, Minneapolis. Minsky describes artificial intelligence (AI) research at the Massachusetts Institute of Technology (MIT). Topics include: the work of John McCarthy; changes in the MIT research laboratories with the advent of Project MAC; research in the areas of expert systems, graphics, word processing, and time-sharing; variations in the Advanced Research Projects Agency (ARPA) attitude toward AI. Oral history interview with Terry Winograd at Charles Babbage Institute, University of Minnesota, Minneapolis. Winograd describes his work in computer science, linguistics, and artificial intelligence at the Massachusetts Institute of Technology (MIT), discussing the work of Marvin Minsky and others. Scientist on the Set: An Interview with Marvin Minsky Marvin Minsky Playlist Appearance on WMBR's Dinnertime Sampler radio show November 26, 2003 Consciousness Is A Big Suitcase: A talk with Marvin Minsky Video of Minsky speaking at the International Conference on Complex Systems, hosted by the New England Complex Systems Institute (NECSI) "The Emotion Universe": Video with Marvin Minsky Marvin Minsky's thoughts on the Fermi Paradox at the Transvisions 2007 conference "Health, population and the human mind": Marvin Minsky talk at the TED conference "The Society of Mind" on MIT OpenCourseWare Marvin Minsky tells his life story at Web of Stories (video) 1927 births 2016 deaths Jewish American atheists American computer scientists 20th-century American Jews United States Navy personnel of World War II Artificial intelligence researchers Cognitive scientists Consciousness researchers and theorists Cryonically preserved people Ethical Culture Fieldston School alumni Fellows of the Association for the Advancement of Artificial Intelligence Harvard College alumni Harvard Fellows Massachusetts Institute of Technology faculty Members of the United States National Academy of Engineering Members of the United States National Academy of Sciences Phillips Academy alumni Princeton University alumni Scientists from New York City The Benjamin Franklin Medal in Computer and Cognitive Science laureates The Bronx High School of Science alumni Turing Award laureates Fellows of the Cognitive Science Society MIT Lincoln Laboratory people MIT Media Lab people Presidents of the Association for the Advancement of Artificial Intelligence Deaths by intracerebral hemorrhage 21st-century American Jews

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https://en.wikipedia.org/wiki/Milton%20Friedman

Milton Friedman

Milton Friedman (; July 31, 1912 – November 16, 2006) was an American economist and statistician who received the 1976 Nobel Memorial Prize in Economic Sciences for his research on consumption analysis, monetary history and theory and the complexity of stabilization policy. With George Stigler and others, Friedman was among the intellectual leaders of the Chicago school of economics, a neoclassical school of economic thought associated with the work of the faculty at the University of Chicago that rejected Keynesianism in favor of monetarism until the mid-1970s, when it turned to new classical macroeconomics heavily based on the concept of rational expectations. Several students, young professors and academics who were recruited or mentored by Friedman at Chicago went on to become leading economists, including Gary Becker, Robert Fogel, Thomas Sowell and Robert Lucas Jr. Friedman's challenges to what he later called "naive Keynesian theory" began with his interpretation of consumption, which tracks how consumers spend. He introduced a theory which would later become part of the mainstream and among the first to propagate the theory of consumption smoothing. During the 1960s he became the main advocate opposing Keynesian government policies, and described his approach (along with mainstream economics) as using "Keynesian language and apparatus" yet rejecting its initial conclusions. He theorized that there existed a natural rate of unemployment and argued that unemployment below this rate would cause inflation to accelerate. He argued that the Phillips curve was in the long run vertical at the "natural rate" and predicted what would come to be known as stagflation. Friedman promoted a macroeconomic viewpoint known as Monetarism and argued that a steady, small expansion of the money supply was the preferred policy, as compared to rapid, and unexpected changes. His ideas concerning monetary policy, taxation, privatization and deregulation influenced government policies, especially during the 1980s. His monetary theory influenced the Federal Reserve's monetary policy in response to the global financial crisis of 2007–2008. After retiring from the University of Chicago in 1977, and becoming Emeritus professor in economics in 1983, Friedman was an advisor to Republican President Ronald Reagan and Conservative British Prime Minister Margaret Thatcher. His political philosophy extolled the virtues of a free market economic system with minimal government intervention in social matters. He once stated that his role in eliminating conscription in the United States was his proudest achievement. In his 1962 book Capitalism and Freedom, Friedman advocated policies such as a volunteer military, freely floating exchange rates, abolition of medical licenses, a negative income tax and school vouchers and opposition to the war on drugs and support for drug liberalization policies. His support for school choice led him to found the Friedman Foundation for Educational Choice, later renamed EdChoice. Friedman's works cover a broad range of economic topics and public policy issues. His books and essays have had global influence, including in former communist states. A 2011 survey of economists commissioned by the EJW ranked Friedman as the second-most popular economist of the 20th century, following only John Maynard Keynes. Upon his death, The Economist described him as "the most influential economist of the second half of the 20th century ... possibly of all of it". Early life Friedman was born in Brooklyn, New York on July 31, 1912. His parents, Sára Ethel (née Landau) and Jenő Saul Friedman, were Jewish working-class immigrants from Beregszász in Carpathian Ruthenia, Kingdom of Hungary (now Berehove in Ukraine). They emigrated to America in their early teens. They both worked as dry goods merchants. Friedman was their fourth child and only son. Shortly after his birth, the family relocated to Rahway, New Jersey. Friedman's family experienced financial troubles, and financial uncertainty caused stability of income to be low. Friedman described his family's situation in the following manner: Friedman's father, Jenő Saul Friedman, died during Friedman's senior year of high school, leaving Friedman and two older sisters to care for his mother, Sára Ethel Friedman. In his early teens, Friedman was injured in a car accident, which scarred his upper lip. A talented student and an avid reader, Friedman graduated from Rahway High School in 1928, just before his 16th birthday. Although no family members had gone to university before Milton, Friedman was awarded a competitive scholarship to Rutgers University (then a private university receiving limited support from the State of New Jersey, e.g., for such scholarships). Friedman was expected to finance the cost of university himself. He graduated from Rutgers in 1932. Friedman initially intended to become an actuary or mathematician, however the state of the economy, which was at this point in a deep depression, convinced him to become an economist. He was offered two scholarships to do graduate work, one in mathematics at Brown University and the other in economics at the University of Chicago, where he would later teach. Friedman chose the latter, earning a Master of Arts degree in 1933. He was strongly influenced by Jacob Viner, Frank Knight, and Henry Simons. Friedman met his future wife, economist Rose Director, while at the University of Chicago. During the 1933–1934 academic year, he had a fellowship at Columbia University, where he studied statistics with statistician and economist Harold Hotelling. He was back in Chicago for the 1934–1935 academic year, working as a research assistant for Henry Schultz, who was then working on Theory and Measurement of Demand. During the aforementioned 1934–35 academic year, Friedman formed what would later prove to be lifetime friendships with George Stigler and W. Allen Wallis, both of whom taught with Friedman at the University of Chicago. Public service Friedman was unable to find academic employment, so in 1935 he followed his friend W. Allen Wallis to Washington, D.C., where Franklin D. Roosevelt's New Deal was "a lifesaver" for many young economists. At this stage, Friedman said he and his wife "regarded the job-creation programs such as the WPA, CCC, and PWA appropriate responses to the critical situation," but not "the price- and wage-fixing measures of the National Recovery Administration and the Agricultural Adjustment Administration." Foreshadowing his later ideas, he believed price controls interfered with an essential signaling mechanism to help resources be used where they were most valued. Indeed, Friedman later concluded that all government intervention associated with the New Deal was "the wrong cure for the wrong disease," arguing the Federal Reserve was to blame, and that they should have expanded the money supply in reaction to what he later described in A Monetary History of the United States as "The Great Contraction." Later, Friedman and his colleague Anna Schwartz wrote A Monetary History of the United States, 1867–1960, which argued that the Great Depression was caused by a severe monetary contraction due to banking crises and poor policy on the part of the Federal Reserve. Robert J. Shiller describes the book as the "most influential account" of the Great Depression. During 1935, he began working for the National Resources Planning Board, which was then working on a large consumer budget survey. Ideas from this project later became a part of his Theory of the Consumption Function, a book which first described consumption smoothing and the Permanent Income Hypothesis. Friedman began employment with the National Bureau of Economic Research during the autumn of 1937 to assist Simon Kuznets in his work on professional income. This work resulted in their jointly authored publication Incomes from Independent Professional Practice, which introduced the concepts of permanent and transitory income, a major component of the Permanent Income Hypothesis that Friedman worked out in greater detail in the 1950s. The book hypothesizes that professional licensing artificially restricts the supply of services and raises prices. Incomes from Independent Professional Practice remained quite controversial within the economics community because of Friedman's hypothesis that barriers to entry, which were exercised and enforced by the American Medical Association, led to higher than average wages for physicians, compared to other professional groups. Barriers to entry are a fixed cost which must be incurred regardless of any outside factors such as work experience, or other factors of human capital. During 1940, Friedman was appointed as an assistant professor teaching Economics at the University of Wisconsin–Madison, but encountered anti semitism in the Economics department and returned to government service. From 1941 to 1943 Friedman worked on wartime tax policy for the federal government, as an advisor to senior officials of the United States Department of the Treasury. As a Treasury spokesman during 1942, he advocated a Keynesian policy of taxation. He helped to invent the payroll withholding tax system, since the federal government needed money to fund the war. He later said, "I have no apologies for it, but I really wish we hadn't found it necessary and I wish there were some way of abolishing withholding now." In Milton and Rose Friedman's jointly-written memoir, he wrote, "Rose has repeatedly chided me over the years about the role that I played in making possible the current overgrown government we both criticize so strongly." Academic career Early years In 1940, Friedman accepted a position at the University of Wisconsin–Madison, but left because of differences with faculty regarding United States involvement in World War II. Friedman believed the United States should enter the war. In 1943, Friedman joined the Division of War Research at Columbia University (headed by W. Allen Wallis and Harold Hotelling), where he spent the rest of World War II working as a mathematical statistician, focusing on problems of weapons design, military tactics, and metallurgical experiments. In 1945, Friedman submitted Incomes from Independent Professional Practice (co-authored with Kuznets and completed during 1940) to Columbia as his doctoral dissertation. The university awarded him a PhD in 1946. Friedman spent the 1945–1946 academic year teaching at the University of Minnesota (where his friend George Stigler was employed). On February 12, 1945, his only son, David D. Friedman, who would later follow in his father's footsteps as an economist was born. University of Chicago In 1946, Friedman accepted an offer to teach economic theory at the University of Chicago (a position opened by departure of his former professor Jacob Viner to Princeton University). Friedman would work for the University of Chicago for the next 30 years. There he contributed to the establishment of an intellectual community that produced a number of Nobel Memorial Prize winners, known collectively as the Chicago school of economics. At the time, Arthur F. Burns, who was then the head of the National Bureau of Economic Research, and later chairman of the Federal Reserve, asked Friedman to rejoin the Bureau's staff. He accepted the invitation, and assumed responsibility for the Bureau's inquiry into the role of money in the business cycle. As a result, he initiated the "Workshop in Money and Banking" (the "Chicago Workshop"), which promoted a revival of monetary studies. During the latter half of the 1940s, Friedman began a collaboration with Anna Schwartz, an economic historian at the Bureau, that would ultimately result in the 1963 publication of a book co-authored by Friedman and Schwartz, A Monetary History of the United States, 1867–1960. Friedman spent the 1954–1955 academic year as a Fulbright Visiting Fellow at Gonville and Caius College, Cambridge. At the time, the Cambridge economics faculty was divided into a Keynesian majority (including Joan Robinson and Richard Kahn) and an anti-Keynesian minority (headed by Dennis Robertson). Friedman speculated he was invited to the fellowship because his views were unacceptable to both of the Cambridge factions. Later his weekly columns for Newsweek magazine (1966–84) were well read and increasingly influential among political and business people, and helped earn the magazine a Gerald Loeb Special Award in 1968. From 1968 to 1978, he and Paul Samuelson participated in the Economics Cassette Series, a biweekly subscription series where the economist would discuss the days' issues for about a half-hour at a time. A Theory of the Consumption Function One of Milton Friedman's most popular works, A Theory of the Consumption Function, challenged traditional Keynesian viewpoints about the household. This work was originally published in 1957 by Princeton University Press, and it reanalyzed the relationship displayed "between aggregate consumption or aggregate savings and aggregate income." Friedman's counterpart Keynes believed people would modify their household consumption expenditures to relate to their existing income levels. Friedman's research introduced the term "permanent income" to the world, which was the average of a household's expected income over several years, and he also developed the permanent income hypothesis. Friedman thought income consisted of several components, namely transitory and permanent. He established the formula in order to calculate income, with p representing the permanent component, and t representing the transitory component.Milton Friedman's research changed how economists interpreted the consumption function, and his work pushed the idea that current income was not the only factor affecting people's adjustment household consumption expenditures. Instead, expected income levels also affected how households would change their consumption expenditures. Friedman's contributions strongly influenced research on consumer behavior, and he further defined how to predict consumption smoothing, which contradicts Keynes' marginal propensity to consume. Although this work presented many controversial points of view which differed from existing viewpoints established by Keynes, A Theory of the Consumption Function helped Friedman gain respect in the field of economics. His work on the Permanent Income Hypothesis is among the many contributions which were listed as reasons for his Sveriges-Riskbank Prize in Economic Sciences. His work was later expanded on by Christopher D. Carroll, especially in regards to the absence of liquidity constraints. The Permanent Income Hypothesis faces some criticism, mainly from Keynesian economists. The primary criticism of the hypothesis is based on a lack of liquidity constraints. Capitalism and Freedom His book Capitalism and Freedom, inspired by a series of lectures he gave at Wabash College, brought him national and international attention outside academia. It was published in 1962 by the University of Chicago Press and consists of essays that used non-mathematical economic models to explore issues of public policy. It sold over 400,000 copies in the first eighteen years and more than half a million since 1962. Capitalism and Freedom was translated into eighteen languages. Friedman talks about the need to move to a classically liberal society, that free markets would help nations and individuals in the long-run and fix the efficiency problems currently faced by the United States and other major countries of the 1950s and 1960s. He goes through the chapters specifying an issue in each respective chapter from the role of government and money supply to social welfare programs to a special chapter on occupational licensure. Friedman concludes Capitalism and Freedom with his "classical liberal [sic]" stance that government should stay out of matters that do not need and should only involve itself when absolutely necessary for the survival of its people and the country. He recounts how the best of a country's abilities come from its free markets while its failures come from government intervention. Post-retirement In 1977, at the age of 65, Friedman retired from the University of Chicago after teaching there for 30 years. He and his wife moved to San Francisco, where he became a visiting scholar at the Federal Reserve Bank of San Francisco. From 1977 on, he was affiliated with the Hoover Institution at Stanford University. During 1977, Friedman was approached by Bob Chitester and the Free to Choose Network. They asked him to create a television program presenting his economic and social philosophy. Friedman and his wife Rose worked on this project for the next three years, and during 1980, the ten-part series, titled Free to Choose, was broadcast by the Public Broadcasting Service (PBS). The companion book to the series (co-authored by Milton and his wife, Rose Friedman), also titled Free To Choose, was the bestselling nonfiction book of 1980. Friedman served as an unofficial adviser to Ronald Reagan during his 1980 presidential campaign, and then served on the President's Economic Policy Advisory Board for the rest of the Reagan Administration. Ebenstein says Friedman was "the 'guru' of the Reagan administration." In 1988 he received the National Medal of Science and Reagan honored him with the Presidential Medal of Freedom. Friedman is known now as one of the most influential economists of the 20th century. Throughout the 1980s and 1990s, Friedman continued to write editorials and appear on television. He made several visits to Eastern Europe and to China, where he also advised governments. He was also for many years a Trustee of the Philadelphia Society. Personal life Friedman had two children, David and Jan. He first met his wife, Rose Friedman (née Director), at the University of Chicago in 1932, and later wed six years later, in 1938. Friedman was noticeably shorter than some of his colleagues; he measured , and has been described as an "Elfin Libertarian" by Binyamin Appelbaum. Rose Friedman, when asked about Friedman's successes, said that “I have never had the desire to compete with Milton professionally (perhaps because I was smart enough to recognize I couldn't). On the other hand, he has always made me feel that his achievement is my achievement." During the 1960s, Friedman built, and subsequently maintained a cottage in Fairlee, Vermont. Friedman also had an apartment in Russian Hill, San Francisco, where he lived from 1977 until his death. Religious views According to a 2007 article in Commentary magazine, his "parents were moderately observant Jews, but Friedman, after an intense burst of childhood piety, rejected religion altogether." He described himself as an agnostic. Friedman wrote extensively of his life and experiences, especially in 1998 in his memoirs with his wife, Rose, titled Two Lucky People. In this book, Rose Friedman describes how she and Milton Friedman raised their two children, Janet and David, with a Christmas Tree in the home. "Orthodox Jews of course, do not celebrate Christmas. However, just as, when I was a child, my mother had permitted me to have a Christmas tree one year when my friend had one, she not only tolerated our having a Christmas tree, she even strung popcorn to hang on it." Death Friedman died of heart failure at the age of 94 years in San Francisco on November 16, 2006. He was still a working economist performing original economic research; his last column was published in The Wall Street Journal the day after his death. He was survived by his wife, Rose Friedman (who would die on August 18, 2009) and their two children, David D. Friedman, known for The Machinery of Freedom, as well as his unique anarcho-capitalism from a Chicago School perspective, and attorney and bridge player Jan Martel. Scholarly contributions Economics Friedman was best known for reviving interest in the money supply as a determinant of the nominal value of output, that is, the quantity theory of money. Monetarism is the set of views associated with modern quantity theory. Its origins can be traced back to the 16th-century School of Salamanca or even further; however, Friedman's contribution is largely responsible for its modern popularization. He co-authored, with Anna Schwartz, A Monetary History of the United States, 1867–1960 (1963), which was an examination of the role of the money supply and economic activity in the U.S. history. Friedman was the main proponent of the monetarist school of economics. He maintained that there is a close and stable association between inflation and the money supply, mainly that inflation could be avoided with proper regulation of the monetary base's growth rate. He famously used the analogy of "dropping money out of a helicopter", in order to avoid dealing with money injection mechanisms and other factors that would overcomplicate his models. Friedman's arguments were designed to counter the popular concept of cost-push inflation, that the increased general price level at the time was the result of increases in the price of oil, or increases in wages; as he wrote: Friedman rejected the use of fiscal policy as a tool of demand management; and he held that the government's role in the guidance of the economy should be restricted severely. Friedman wrote extensively on the Great Depression, and he termed the 1929–1933 period the Great Contraction. He argued that the Depression had been caused by an ordinary financial shock whose duration and seriousness were greatly increased by the subsequent contraction of the money supply caused by the misguided policies of the directors of the Federal Reserve. This theory was put forth in A Monetary History of the United States, and the chapter on the Great Depression was then published as a stand-alone book entitled The Great Contraction, 1929–1933. Both books are still in print from the Princeton University Press, and some editions include as an appendix a speech at a University of Chicago event honoring Friedman in which Ben Bernanke made this statement: Let me end my talk by abusing slightly my status as an official representative of the Federal Reserve. I would like to say to Milton and Anna: Regarding the Great Depression, you're right. We did it. We're very sorry. But thanks to you, we won't do it again. Friedman also argued for the removal of government intervention in currency markets, thereby spawning an enormous literature on the subject, as well as promoting the practice of freely floating exchange rates. His close friend George Stigler explained, "As is customary in science, he did not win a full victory, in part because research was directed along different lines by the theory of rational expectations, a newer approach developed by Robert Lucas, also at the University of Chicago." The relationship between Friedman and Lucas, or new classical macroeconomics as a whole, was highly complex. The Friedmanian Phillips curve was an interesting starting point for Lucas, but he soon realized that the solution provided by Friedman was not quite satisfactory. Lucas elaborated a new approach in which rational expectations were presumed instead of the Friedmanian adaptive expectations. Due to this reformulation, the story in which the theory of the new classical Phillips curve was embedded radically changed. This modification, however, had a significant effect on Friedman's own approach, so, as a result, the theory of the Friedmanian Phillips curve also changed. Moreover, new classical adherent Neil Wallace, who was a graduate student at the University of Chicago between 1960 and 1963, regarded Friedman's theoretical courses as a mess, highlighting the strained relationship between Monetarism and new classical schools. Friedman was also known for his work on the consumption function, the permanent income hypothesis (1957), which Friedman himself referred to as his best scientific work. This work contended that utility-maximizing consumers would spend a proportional amount of what they perceived to be their permanent income. Permanent Income refers to such factors like human capital. Windfall gains would mostly be saved because of the law of diminishing marginal utility. Friedman's essay "The Methodology of Positive Economics" (1953) provided the epistemological pattern for his own subsequent research and to a degree that of the Chicago School. There he argued that economics as science should be free of value judgments for it to be objective. Moreover, a useful economic theory should be judged not by its descriptive realism but by its simplicity and fruitfulness as an engine of prediction. That is, students should measure the accuracy of its predictions, rather than the 'soundness of its assumptions'. His argument was part of an ongoing debate among such statisticians as Jerzy Neyman, Leonard Savage, and Ronald Fisher. However, despite being an advocate of the free market, Milton Friedman believed that the government had two crucial roles. In an interview with Phil Donahue, Milton Friedman argued that "the two basic functions of a government are to protect the nation against foreign enemy, and to protect citizens against its fellows.” He also admitted that although privatization of national defense could reduce the overall cost, he has not yet thought of a way to make this privatization possible. Rejection and subsequent evolution of the Philips Curve Other important contributions include his critique of the Phillips curve and the concept of the natural rate of unemployment (1968). This critique associated his name, together with that of Edmund Phelps, with the insight that a government that brings about greater inflation cannot permanently reduce unemployment by doing so. Unemployment may be temporarily lower, if the inflation is a surprise, but in the long run unemployment will be determined by the frictions and imperfections of the labor market. If the conditions are not met and inflation is expected, the "long run" effects will replace the "short term" effects. Through his critique, the Philips curve evolved from a strict model emphasizing the connection between inflation and unemployment as being absolute, to a model which emphasized short term unemployment reductions and long term employment stagnations. Friedman's revised and updated Phillips Curve also changed as a result of Robert Lucas's idea of Rational Expectations, replacing the adaptive expectations Friedman used. Statistics One of his most famous contributions to statistics is sequential sampling. Friedman did statistical work at the Division of War Research at Columbia, where he and his colleagues came up with the technique. It became, in the words of The New Palgrave Dictionary of Economics, "the standard analysis of quality control inspection". The dictionary adds, "Like many of Friedman's contributions, in retrospect it seems remarkably simple and obvious to apply basic economic ideas to quality control; that, however, is a measure of his genius." Public policy positions Federal Reserve and monetary policy Although Friedman concluded the government does have a role in the monetary system he was critical of the Federal Reserve due to its poor performance and felt it should be abolished. He was opposed to Federal Reserve policies, even during the so-called 'Volcker shock' that was labeled 'monetarist'. Friedman believed the Federal Reserve System should ultimately be replaced with a computer program. He favored a system that would automatically buy and sell securities in response to changes in the money supply. The proposal to constantly grow the money supply at a certain predetermined amount every year has become known as Friedman's k-percent rule. There is debate about the effectiveness of a theoretical money supply targeting regime. The Fed's inability to meet its money supply targets from 1978–1982 led some to conclude it is not a feasible alternative to more conventional inflation and interest rate targeting. Towards the end of his life, Friedman expressed doubt about the validity of targeting the quantity of money. To date, most countries have adopted inflation targeting instead of the k-percent rule. Idealistically, Friedman actually favored the principles of the 1930s Chicago plan, which would have ended fractional reserve banking and, thus, private money creation. It would force banks to have 100% reserves backing deposits, and instead place money creation powers solely in the hands of the US Government. This would make targeting money growth more possible, as endogenous money created by fractional reserve lending would no longer be a major issue. Friedman was a strong advocate for floating exchange rates throughout the entire Bretton-Woods period (1944–1971). He argued that a flexible exchange rate would make external adjustment possible and allow countries to avoid balance of payments crises. He saw fixed exchange rates as an undesirable form of government intervention. The case was articulated in an influential 1953 paper, "The Case for Flexible Exchange Rates," at a time when most commentators regarded the possibility of floating exchange rates as an unrealistic policy proposal. Foreign Policy While Walter Oi is credited with establishing the economic basis for a volunteer military, Friedman was a proponent, and was credited with ending the draft, stating that the draft was "inconsistent with a free society." In Capitalism and Freedom, he argued conscription is inequitable and arbitrary, preventing young men from shaping their lives as they see fit. During the Nixon administration he headed the committee to research a conversion to paid/volunteer armed force. He would later state his role in eliminating the conscription in the United States was his proudest accomplishment. Friedman did, however, believe the introduction of a system of universal military training as a reserve in cases of war-time could be justified. He still opposed its implementation in the United States, describing it as a “monstrosity”. Biographer Lanny Ebenstein noted a drift over time in Friedman's views from an interventionist to a more cautious foreign policy. He supported US involvement in the Second World War and initially supported a hard-line against Communism, but moderated over time. However, Friedman did state in a 1995 interview that he was an anti-interventionist. He opposed the Gulf War and the Iraq War. In a spring 2006 interview, Friedman said the US's stature in the world had been eroded by the Iraq War, but that it might be improved if Iraq were to become a peaceful and independent country. Libertarianism and the Republican Party Friedman was an economic advisor and speech writer in Barry Goldwater's failed presidential campaign in 1964. He was an advisor to California governor Ronald Reagan, and was active in Reagan's presidential campaigns. He served as a member of President Reagan's Economic Policy Advisory Board starting in 1981. In 1988, he received the Presidential Medal of Freedom and the National Medal of Science. Friedman stated that he was a libertarian philosophically, but a member of the U.S. Republican Party for the sake of "expediency" ("I am a libertarian with a small 'l' and a Republican with a capital 'R.' And I am a Republican with a capital 'R' on grounds of expediency, not on principle.") But, he said, "I think the term classical liberal is also equally applicable. I don't really care very much what I'm called. I'm much more interested in having people thinking about the ideas, rather than the person." His citation for the Presidential Medal of Freedom reads: "He has used a brilliant mind to advance a moral vision: the vision of a society where men and women are free, free to choose, but where government is not as free to override their decisions. That vision has changed America, and it is changing the world. All of us owe a tremendous debt to this man’s towering intellect and his devotion to liberty." Governmental involvement in the economy Friedman was supportive of the state provision of some public goods that private businesses are not considered as being able to provide. However, he argued that many of the services performed by government could be performed better by the private sector. Above all, if some public goods are provided by the state, he believed that they should not be a legal monopoly where private competition is prohibited; for example, he wrote: In 1962, Friedman criticized Social Security in his book Capitalism and Freedom, arguing that it had created welfare dependency. However, in the penultimate chapter of the same book, Friedman argued that while capitalism had greatly reduced the extent of poverty in absolute terms, "poverty is in part a relative matter, [and] even in [wealthy Western] countries, there are clearly many people living under conditions that the rest of us label as poverty." Friedman also noted that while private charity could be one recourse for alleviating poverty and cited late 19th century Britain and the United States as exemplary periods of extensive private charity and eleemosynary activity, he made the following point: Friedman argued further that other advantages of the negative income tax were that it could fit directly into the tax system, would be less costly, and would reduce the administrative burden of implementing a social safety net. Friedman reiterated these arguments 18 years later in Free to Choose, with the additional proviso that such a reform would only be satisfactory if it replaced the current system of welfare programs rather than augment it. According to economist Robert H. Frank, writing in The New York Times, Friedman's views in this regard were grounded in a belief that while "market forces ... accomplish wonderful things", they "cannot ensure a distribution of income that enables all citizens to meet basic economic needs". In 1979, Friedman expressed support for ecotaxes in general in an interview on The Phil Donahue Show, saying "the best way to [deal with pollution] is to impose a tax on the cost of the pollutants emitted by a car and make an incentive for car manufacturers and for consumers to keep down the amount of pollution." In Free to Choose, Friedman reiterated his support for ecotaxes as compared with increased environmental regulation, stating "The preservation of the environment and the avoidance of undue pollution are real problems and they are problems concerning which the government has an important role to play. … Most economists agree that a far better way to control pollution than the present method of specific regulation and supervision is to introduce market discipline by imposing effluent charges." In his 1955 article "The Role of Government in Education" Friedman proposed supplementing publicly operated schools with privately run but publicly funded schools through a system of school vouchers. Reforms similar to those proposed in the article were implemented in, for example, Chile in 1981 and Sweden in 1992. In 1996, Friedman, together with his wife, founded the Friedman Foundation for Educational Choice to advocate school choice and vouchers. In 2016, the Friedman Foundation changed its name to EdChoice to honor the Friedmans' desire to have the educational choice movement live on without their names attached to it after their deaths. Michael Walker of the Fraser Institute and Friedman hosted a series of conferences from 1986 to 1994. The goal was to create a clear definition of economic freedom and a method for measuring it. Eventually this resulted in the first report on worldwide economic freedom, Economic Freedom in the World. This annual report has since provided data for numerous peer-reviewed studies and has influenced policy in several nations. With sixteen other distinguished economists he opposed the Copyright Term Extension Act, and signed on to an amicus brief filed in Eldred v. Ashcroft. Friedman jokingly described it as a "no-brainer". Friedman argued for stronger basic legal (constitutional) protection of economic rights and freedoms to further promote industrial-commercial growth and prosperity and buttress democracy and freedom and the rule of law generally in society. Social issues Friedman also supported libertarian policies such as legalization of drugs and prostitution. During 2005, Friedman and more than 500 other economists advocated discussions regarding the economic benefits of the legalization of marijuana. Friedman was also a supporter of gay rights. He never specifically supported same-sex marriage, instead saying "I do not believe there should be any discrimination against gays." Friedman favored immigration, saying "legal and illegal immigration has a very positive impact on the U.S. economy." However, he suggested that immigrants ought not to have access to the welfare system. Friedman stated that immigration from Mexico had been a "good thing", in particular illegal immigration. Friedman argued that illegal immigration was a boon because they "take jobs that most residents of this country are unwilling to take, they provide employers with workers of a kind they cannot get" and they do not use welfare. In Free to Choose, Friedman wrote: No arbitrary obstacles should prevent people from achieving those positions for which their talents fit them and which their values lead them to seek. Not birth, nationality, color, religion, sex, nor any other irrelevant characteristic should determine the opportunities that are open to a person — only his abilities.Friedman also famously argued that the welfare state must end before immigration, or more specifically, before open borders, because immigrants might have an incentive to come directly because of welfare payments. Economist Bryan Caplan has disputed this assertion, arguing that welfare is generally distributed not among immigrants, but instead retirees, through Social Security. Friedman was against public housing as he believed it was also a form of welfare. He believed the one of the main arguments that politicians have for public housing is that regular low income housing was too expensive due to the imposed higher cost of a fire and police department. He believed that it would only increase taxes and not benefit low income people in the long run. Friedman was an advocate for direct cash instead of public housing believing that the people would be better off that way. He argued that liberals would never agree with this idea due to them not trusting their own citizens. He also stated that regression has already happened with more land being left vacant due to slow construction. Friedman argued that public housing instead encourages juvenile delinquency. Friedman was also against minimum wage laws, he saw them as a clear case as one can find that the precise opposite is happening when this was attempted. Minimum wage laws would increase unemployment in his eyes and that employers would not hire back workers that were already there for less pay. In his view, this would leave low income people worse off because the voters for minimum wage laws would then become the victims of unemployment. He believed that these ideas of new minimum wage laws came from Northern factories and Unions, in an attempt to reduce competition from the South. Honors, recognition and legacy George H. Nash, a leading historian of American conservatism, says that by "the end of the 1960s he was probably the most highly regarded and influential conservative scholar in the country, and one of the few with an international reputation." In 1971, Friedman received the Golden Plate Award of the American Academy of Achievement. Friedman allowed the libertarian Cato Institute to use his name for its biennial Milton Friedman Prize for Advancing Liberty beginning in 2001. A Friedman Prize was given to the late British economist Peter Bauer in 2002, Peruvian economist Hernando de Soto in 2004, Mart Laar, former Estonian Prime Minister in 2006 and a young Venezuelan student Yon Goicoechea in 2008. His wife Rose, sister of Aaron Director, with whom he initiated the Friedman Foundation for Educational Choice, served on the international selection committee. Friedman was also a recipient of the Nobel Memorial Prize in Economics. Upon Friedman's death, Harvard President Lawrence Summers called him "The Great Liberator", saying "any honest Democrat will admit that we are now all Friedmanites." He said Friedman's great popular contribution was "in convincing people of the importance of allowing free markets to operate." Stephen Moore, a member of the editorial forward of The Wall Street Journal, said in 2013: "Quoting the most-revered champion of free-market economics since Adam Smith has become a little like quoting the Bible." He adds, "There are sometimes multiple and conflicting interpretations." Although post-Keynesian economist John Kenneth Galbraith was a prominent critic of Friedman and his ideology, he conceded that "The age of John Maynard Keynes gave way to the age of Milton Friedman." 1976 Nobel Memorial Prize in Economic Sciences Friedman won the Nobel Memorial Prize in Economic Sciences, the sole recipient for 1976, "for his achievements in the fields of consumption analysis, monetary history and theory and for his demonstration of the complexity of stabilization policy." His appointment was controversial, mainly for his association with military dictator Augusto Pinochet. Some economists, such as Institutional economist and 1974 Nobel Prize winner Gunnar Myrdal, criticized Friedman, and Myrdal's own 1974 Nobel Prize partner Friedrich Hayek, for being reactionaries. Myrdal's criticism caused some economists to oppose the Sveriges Riksbank Prize in Economics Sciences in Memory of Alfred Nobel itself. Hong Kong Friedman once said: "If you want to see capitalism in action, go to Hong Kong." He wrote in 1990 that the Hong Kong economy was perhaps the best example of a free market economy. One month before his death, he wrote "Hong Kong Wrong—What would Cowperthwaite say?" in The Wall Street Journal, criticizing Donald Tsang, Chief Executive of Hong Kong, for abandoning "positive non interventionism." Tsang later said he was merely changing the slogan to "big market, small government", where small government is defined as less than 20% of GDP. In a debate between Tsang and his rival Alan Leong before the 2007 Hong Kong Chief Executive election, Leong introduced the topic and jokingly accused Tsang of angering Friedman to death (Friedman had died only a year prior). Chile During 1975, two years after the military coup that brought military dictator President Augusto Pinochet to power and ended the government of Salvador Allende, the economy of Chile experienced a severe crisis. Friedman and Arnold Harberger accepted an invitation of a private Chilean foundation to visit Chile and speak on principles of economic freedom. He spent seven days in Chile giving a series of lectures at the Universidad Católica de Chile and the (National) University of Chile. One of the lectures was entitled "The Fragility of Freedom" and according to Friedman, "dealt with precisely the threat to freedom from a centralized military government." In a letter to Pinochet of April 21, 1975, Friedman considered the "key economic problems of Chile are clearly ... inflation and the promotion of a healthy social market economy". He stated that "There is only one way to end inflation: by drastically reducing the rate of increase of the quantity of money" and that "cutting government spending is by far and away the most desirable way to reduce the fiscal deficit, because it ... strengthens the private sector thereby laying the foundations for healthy economic growth". As to how rapidly inflation should be ended, Friedman felt that "for Chile where inflation is raging at 10–20% a month ... gradualism is not feasible. It would involve so painful an operation over so long a period that the patient would not survive." Choosing "a brief period of higher unemployment" was the lesser evil.. and that "the experience of Germany, ... of Brazil ..., of the post-war adjustment in the U.S. ... all argue for shock treatment". In the letter Friedman recommended to deliver the shock approach with "a package to eliminate the surprise and to relieve acute distress" and "for definiteness let me sketch the contents of a package proposal ... to be taken as illustrative" although his knowledge of Chile was "too limited to enable [him] to be precise or comprehensive". He listed a "sample proposal" of 8 monetary and fiscal measures including "the removal of as many as obstacles as possible that now hinder the private market. For example, suspend ... the present law against discharging employees". He closed, stating "Such a shock program could end inflation in months". His letter suggested that cutting spending to reduce the fiscal deficit would result in less transitional unemployment than raising taxes. Sergio de Castro, a Chilean Chicago School graduate, became the nation's Minister of Finance in 1975. During his six-year tenure, foreign investment increased, restrictions were placed on striking and labor unions, and GDP rose yearly. A foreign exchange program was created between the Catholic University of Chile and the University of Chicago. Many other Chicago School alumni were appointed government posts during and after Pinochet's dictatorship; others taught its economic doctrine at Chilean universities. They became known as the Chicago Boys. Friedman defended his activity in Chile on the grounds that, in his opinion, the adoption of free market policies not only improved the economic situation of Chile but also contributed to the amelioration of Pinochet's rule and to the eventual transition to a democratic government during 1990. That idea is included in Capitalism and Freedom, in which he declared that economic freedom is not only desirable in itself but is also a necessary condition for political freedom. In his 1980 documentary Free to Choose, he said the following: "Chile is not a politically free system, and I do not condone the system. But the people there are freer than the people in Communist societies because government plays a smaller role. ... The conditions of the people in the past few years has been getting better and not worse. They would be still better to get rid of the junta and to be able to have a free democratic system." In 1984, Friedman stated that he has "never refrained from criticizing the political system in Chile." In 1991 he said: "I have nothing good to say about the political regime that Pinochet imposed. It was a terrible political regime. The real miracle of Chile is not how well it has done economically; the real miracle of Chile is that a military junta was willing to go against its principles and support a free market regime designed by principled believers in a free market. ... In Chile, the drive for political freedom, that was generated by economic freedom and the resulting economic success, ultimately resulted in a referendum that introduced political democracy. Now, at long last, Chile has all three things: political freedom, human freedom and economic freedom. Chile will continue to be an interesting experiment to watch to see whether it can keep all three or whether, now that it has political freedom, that political freedom will tend to be used to destroy or reduce economic freedom." He stressed that the lectures he gave in Chile were the same lectures he later gave in China and other socialist states. He further stated "I do not consider it as evil for an economist to render technical economic advice to the Chilean Government, any more than I would regard it as evil for a physician to give technical medical advice to the Chilean Government to help end a medical plague." During the 2000 PBS documentary The Commanding Heights (based on the book), Friedman continued to argue that "free markets would undermine [Pinochet's] political centralization and political control.", and that criticism over his role in Chile missed his main contention that freer markets resulted in freer people, and that Chile's unfree economy had caused Pinochet's rise. Friedman advocated for free markets which undermined "political centralization and political control". Because of his involvement with the government of Chile, which was a dictatorship at the time of his visit, there were international protests, spanning from Sweden to America when Friedman was awarded the Nobel Memorial Prize in 1976. Friedman was accused of supporting the military dictatorship in Chile because of the relation of economists of the University of Chicago to Pinochet, and a seven-day trip he took to Chile during March 1975 (less than two years after the coup that ended with the death of President Salvador Allende). Friedman answered that he was never an advisor to the dictatorship, but only gave some lectures and seminars on inflation, and met with officials, including Augusto Pinochet the head of the military dictatorship, while in Chile. After a 1991 speech on drug legalization, Friedman answered a question on his involvement with the Pinochet regime, saying that he was never an advisor to Pinochet (also mentioned in his 1984 Iceland interview), but that a group University of Chicago students were involved in Chile's economic reforms. Friedman credited these reforms with high levels of economic growth and with the establishment of democracy that has subsequently occurred in Chile. In October 1988, after returning from a lecture tour of China during which he had met with Zhao Ziyang, General Secretary of the Communist Party of China, Friedman wrote to The Stanford Daily asking if he should anticipate a similar "avalanche of protests for having been willing to give advice to so evil a government? And if not, why not?" Iceland Friedman visited Iceland during the autumn of 1984, met with important Icelanders and gave a lecture at the University of Iceland on the "tyranny of the status quo." He participated in a lively television debate on August 31, 1984, with socialist intellectuals, including Ólafur Ragnar Grímsson, who later became President of Iceland. When they complained that a fee was charged for attending his lecture at the university and that, hitherto, lectures by visiting scholars had been free-of-charge, Friedman replied that previous lectures had not been free-of-charge in a meaningful sense: lectures always have related costs. What mattered was whether attendees or non-attendees covered those costs. Friedman thought that it was fairer that only those who attended paid. In this discussion Friedman also stated that he did not receive any money for delivering that lecture. Estonia Although Friedman never visited Estonia, his book Free to Choose influenced Estonia's then 32-year-old prime minister, Mart Laar, who has claimed that it was the only book on economics he had read before taking office. Laar's reforms are often credited with responsibility for transforming Estonia from an impoverished Soviet republic to the "Baltic Tiger." A prime element of Laar's program was introduction of the flat tax. Laar won the 2006 Milton Friedman Prize for Advancing Liberty, awarded by the Cato Institute. United Kingdom After 1950 Friedman was frequently invited to lecture in Britain, and by the 1970s his ideas had gained widespread attention in conservative circles. For example, he was a regular speaker at the Institute of Economic Affairs (IEA), a libertarian think tank. Conservative politician Margaret Thatcher closely followed IEA programs and ideas, and met Friedman there in 1978. He also strongly influenced Keith Joseph, who became Thatcher's senior advisor on economic affairs, as well as Alan Walters and Patrick Minford, two other key advisers. Major newspapers, including the Daily Telegraph, The Times, and The Financial Times all promulgated Friedman's monetarist ideas to British decision-makers. Friedman's ideas strongly influenced Thatcher and her allies when she became Prime Minister in 1979. United States After his death a number of obituaries and articles were written in Friedman's honor, citing him as one of the most important and influential economists of the post-war era. Milton Friedman's somewhat controversial legacy in America remains strong within the conservative movement. However, some journalists and economists like Noah Smith and Scott Sumner have argued Friedman's academic legacy has been buried under his political philosophy and misinterpreted by modern conservatives. Criticism of published works Econometrician David Hendry criticized part of Friedman's and Anna Schwartz's 1982 Monetary Trends. When asked about it during an interview with Icelandic TV in 1984, Friedman said that the criticism referred to a different problem from that which he and Schwartz had tackled, and hence was irrelevant, and pointed out the lack of consequential peer review amongst econometricians on Hendry's work. In 2006, Hendry said that Friedman was guilty of "serious errors" of misunderstanding that meant "the t-ratios he reported for UK money demand were overstated by nearly 100 per cent", and said that, in a paper published in 1991 with Neil Ericsson, he had refuted "almost every empirical claim ... made about UK money demand" by Friedman and Schwartz. A 2004 paper updated and confirmed the validity of the Hendry–Ericsson findings through 2000. Some commentators believe that Friedman was not open enough, in their view, to the possibility of market inefficiencies. Economist Noah Smith argues that while Friedman made many important contributions to economic theory not all of his ideas relating to macroeconomics have entirely held up over the years and that too few people are willing to challenge them. Political scientist C.B. Macpherson disagreed with Friedman's historical assessment of economic freedom leading to political freedom, suggesting that political freedom actually gave way to economic freedom for property-owning elites. He also challenged the notion that markets efficiently allocated resources and rejected Friedman's definition of liberty. Friedman's positivist methodological approach to economics has also been critiqued and debated. Finnish economist Uskali Mäki argued some of his assumptions were unrealistic and vague. Noam Chomsky suggested in his book Profit over People that the primary role of what some describe as neoliberalism was as an ideological cover for capital accumulation by multinational corporations. Friedman has been criticized by some prominent Austrian economists, including Murray Rothbard and Walter Block. Block called Friedman a "socialist", and was critical of his support for a central banking system, saying "First and foremost, this economist supported the Federal Reserve System all throughout his professional life. That organization of course does not own the money stock, but controls it. Friedman was an inveterate hater of the gold standard, denigrating its advocates as 'gold bugs'." Although the book was described by the Cato Institute as among the greatest economics books in the 20th century, and A Monetary History of the United States is widely considered to be among the most influential economics books ever made, it has endured criticisms for its conclusion that the Federal Reserve was to blame for the Great Depression. Some economists, including noted Friedman critic Peter Temin have raised questions about the legitimacy of Friedman's claims about whether or not monetary quantity levels were endogenous rather than exogenously determined, as A Monetary History of the United States posits. Nobel-prize winning economist Paul Krugman argued that the 2008 recession proved that, during a recession, a central bank cannot control broad money (M3 money, as defined by the OECD), and even if it can, the money supply does not bear a direct or proven relationship with GDP. According to Krugman, this was true in the 1930s, and the claim that the Federal Reserve could have avoided the Great Depression by reacting to what Friedman called The Great Contraction is "highly dubious". James Tobin questioned the importance of velocity of money, and how informative this measure of the frequency of transactions is to understanding the various fluctuations observed in A Monetary History of the United States. Economic historian Barry Eichengreen argued that because of the gold standard, which was at this point in time the chief monetary system of the world, the Federal Reserve's hands were tied. This was because, in order to retain the credibility of the gold standard, the Federal Reserve could not undertake actions like dramatically expanding the money supply as proposed by Friedman and Schwartz. Austrian economist Murray Rothbard criticized Friedman's conclusions, and argued they are inconsistent with data, because during the period described by Friedman as "The Great Contraction," the money supply increased. Friedman and Schwartz argued that the Great Depression happened as a result of a deflationary spiral which, according to Rothbard, is inconsistent with data. Lawrence Mishel, distinguished fellow of the Economic Policy Institute, argues that wages have been kept low in the United States because of the Friedman doctrine, namely the adoption of corporate practices and economic policies (or the blocking of reforms) at the behest of business and the wealthy elite, which resulted in the systematic disempowerment of workers. He argues that the lack of worker power caused wage suppression, increased wage inequality, and exacerbated racial disparities. Notably, mechanisms such as excessive unemployment, globalization, eroded labor standards (and their lack of enforcement), weakened collective bargaining, and corporate structure changes that disadvantage workers, all collectively functioned to keep wages low. From 1980 to 2020, while economy-wide productivity rose almost 70 percent, hourly compensation for typical workers increased less than 12 percent, whilst the earnings of the top 1 percent and 0.1 percent increased 158 percent and 341 percent, respectively. Selected bibliography A Theory of the Consumption Function (1957) . A Program for Monetary Stability (Fordham University Press, 1960) 110 pp. online version Capitalism and Freedom (1962), highly influential series of essays that established Friedman's position on major issues of public policy (excerpts) A Monetary History of the United States, 1867–1960, with Anna J. Schwartz, 1963; part 3 reprinted as The Great Contraction "The Role of Monetary Policy." American Economic Review, Vol. 58, No. 1 (Mar. 1968), pp. 1–17 JSTOR presidential address to American Economics Association "Inflation and Unemployment: Nobel Lecture", 1977, Journal of Political Economy. Vol. 85, pp. 451–472. JSTOR Free to Choose: A Personal Statement, with Rose Friedman, (1980), highly influential restatement of policy views The Essence of Friedman, essays edited by Kurt R. Leube, (1987) () Two Lucky People: Memoirs (with Rose Friedman) (1998) excerpt and text search Milton Friedman on Economics: Selected Papers by Milton Friedman, edited by Gary S. Becker (2008) See also Capitalism and Freedom Causes of the Great Depression Free to Choose Friedrich Hayek Friedman doctrine George Stigler Great Contraction History of economic thought List of economists List of Jewish Nobel laureates List of Presidential Medal of Freedom recipients Ludwig von Mises Monetary/fiscal debate "We are all Keynesians now" Notes References Sources Further reading Jones, Daniel Stedman. Masters of the Universe: Hayek, Friedman, and the Birth of Neoliberal Politics (2nd ed. 2014) Wood, John Cunningham, and Ronald N. Wood, ed. (1990), Milton Friedman: Critical Assessments, v. 3. Routledge. External links Collected Works of Milton Friedman (Multiple Text, audio, video) The Milton Friedman papers at the Hoover Institution Archives Selected Bibliography for Milton Friedman at the University of Chicago Library Profile and Papers at Research Papers in Economics/RePEc Becker Friedman Institute at the University of Chicago The Foundation for Educational Choice Milton Fridman at Scarlett Inflation and Unemployment 1976 lecture at NobelPrize.org Nobel Memorial Prize acceptance speech Milton Friedman vs. The Fed Bailout by Michael Hirsh, Newsweek, July 17, 2009 Four Deformations of the Apocalypse, David Stockman, The New York Times, July 31, 2010 A collection of Milton Friedman's works Videos Booknotes interview with Friedman on the 50th Anniversary Edition of F.A. Hayek's Road to Serfdom, November 20, 1994. In Depth interview with Friedman, September 3, 2000 Milton Friedman, Commanding Heights, PBS, October 1, 2000, interview, profile and video "Free To Choose" (1980), a PBS TV series by Milton Friedman Milton Friedman at the Cato Institute Free to Choose Network 1912 births 2006 deaths Nobel laureates in Economics American Nobel laureates Hungarian Nobel laureates 20th-century American economists 20th-century American male writers 20th-century American non-fiction writers 21st-century American economists 21st-century American male writers 21st-century American non-fiction writers American agnostics American economics writers American libertarians American male non-fiction writers American people of Hungarian-Jewish descent American political philosophers American political writers Cato Institute people Chicago School economists Columbia University faculty Columbia Graduate School of Arts and Sciences alumni Critics of Marxism Distinguished Fellows of the American Economic Association Drug policy reform activists Earhart Foundation Fellows Economists from California Economists from Illinois Fellows of Gonville and Caius College, Cambridge Fellows of the American Statistical Association Fellows of the Econometric Society Friedman family Illinois Republicans Jewish activists Jewish agnostics Jewish American social scientists Jewish American writers Jewish anti-communists Libertarian economists Libertarian theorists Macroeconomists Mathematicians from Illinois Members of the United States National Academy of Sciences Monetarists Monetary economists Monetary reformers National Bureau of Economic Research National Medal of Science laureates Non-interventionism People from Chicago People from San Francisco Philosophy writers Presidential Medal of Freedom recipients Presidents of the American Economic Association Rahway High School alumni Rutgers University alumni University of Chicago alumni University of Chicago faculty Writers from Chicago Writers from San Francisco

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https://en.wikipedia.org/wiki/Mass%20media

Mass media

Mass media refers to a diverse array of media technologies that reach a large audience via mass communication. The technologies through which this communication takes place include a variety of outlets. Broadcast media transmit information electronically via media such as films, radio, recorded music, or television. Digital media comprises both Internet and mobile mass communication. Internet media comprise such services as email, social media sites, websites, and Internet-based radio and television. Many other mass media outlets have an additional presence on the web, by such means as linking to or running TV ads online, or distributing QR codes in outdoor or print media to direct mobile users to a website. In this way, they can use the easy accessibility and outreach capabilities the Internet affords, as thereby easily broadcast information throughout many different regions of the world simultaneously and cost-efficiently. Outdoor media transmit information via such media as AR advertising; billboards; blimps; flying billboards (signs in tow of airplanes); placards or kiosks placed inside and outside buses, commercial buildings, shops, sports stadiums, subway cars, or trains; signs; or skywriting. Print media transmit information via physical objects, such as books, comics, magazines, newspapers, or pamphlets. Event organising and public speaking can also be considered forms of mass media. The organisations that control these technologies, such as movie studios, publishing companies, and radio and television stations, are also known as the mass media. Issues with definition In the late 20th century, mass media could be classified into eight mass media industries: books, the Internet, magazines, movies, newspapers, radio, recordings and television. The explosion of digital communication technology in the late 20th and early 21st centuries made prominent the question: what forms of media should be classified as "mass media"? For example, it is controversial whether to include mobile phones, computer games (such as MMORPGs) and video games in the definition. In the early 2000s, a classification called the "seven mass media" came into use. In order of introduction, they are: Print (books, pamphlets, newspapers, magazines, posters, etc.) from the late 15th century Recordings (gramophone records, magnetic tapes, cassettes, cartridges, CDs and DVDs) from the late 19th century Cinema from about 1900 Radio from about 1910 Television from about 1950 Internet from about 1990 Mobile phones from about 2000 Each mass medium has its own content types, creative artists, technicians and business models. For example, the Internet includes blogs, podcasts, web sites and various other technologies built atop the general distribution network. The sixth and seventh media, Internet and mobile phones, are often referred to collectively as digital media; and the fourth and fifth, radio and TV, as broadcast media. Some argue that video games have developed into a distinct mass form of media. While a telephone is a two-way communication device, mass media communicates to a large group. In addition, the telephone has transformed into a cell phone which is equipped with Internet access. A question arises whether this makes cell phones a mass medium or simply a device used to access a mass medium (the Internet). There is currently a system by which marketers and advertisers are able to tap into satellites, and broadcast commercials and advertisements directly to cell phones, unsolicited by the phone's user. This transmission of mass advertising to millions of people is another form of mass communication. Video games may also be evolving into a mass medium. Video games (for example, massively multiplayer online role-playing games (MMORPGs), such as RuneScape) provide a common gaming experience to millions of users across the globe and convey the same messages and ideologies to all their users. Users sometimes share the experience with one another by playing online. Excluding the Internet, however, it is questionable whether players of video games are sharing a common experience when they play the game individually. It is possible to discuss in great detail the events of a video game with a friend one has never played with, because the experience is identical to each. The question, then, is whether this is a form of mass communication. Characteristics Five characteristics of mass communication have been identified by sociologist John Thompson of Cambridge University: "[C]omprises both technical and institutional methods of production and distribution" – This is evident throughout the history of mass media, from print to the Internet, each suitable for commercial utility Involves the "commodification of symbolic forms" – as the production of materials relies on its ability to manufacture and sell large quantities of the work; as radio stations rely on their time sold to advertisements, so too newspapers rely on their space for the same reasons "[S]eparate contexts between the production and reception of information" Its "reach to those 'far removed' in time and space, in comparison to the producers" "[I]nformation distribution" – a "one to many" form of communication, whereby products are mass-produced and disseminated to a great quantity of audiences Mass vs. mainstream and alternative The term "mass media" is sometimes erroneously used as a synonym for "mainstream media". Mainstream media are distinguished from alternative media by their content and point of view. Alternative media are also "mass media" outlets in the sense that they use technology capable of reaching many people, even if the audience is often smaller than the mainstream. In common usage, the term "mass" denotes not that a given number of individuals receives the products, but rather that the products are available in principle to a plurality of recipients. Forms of mass media Broadcast The sequencing of content in a broadcast is called a schedule. With all technological endeavours a number of technical terms and slang have developed. Radio and television programs are distributed over frequency bands which are highly regulated in the United States. Such regulation includes determination of the width of the bands, range, licensing, types of receivers and transmitters used, and acceptable content. Cable television programs are often broadcast simultaneously with radio and television programs, but have a more limited audience. By coding signals and requiring a cable converter box at individual recipients' locations, cable also enables subscription-based channels and pay-per-view services. A broadcasting organisation may broadcast several programs simultaneously, through several channels (frequencies), for example BBC One and Two. On the other hand, two or more organisations may share a channel and each use it during a fixed part of the day, such as the Cartoon Network/Adult Swim. Digital radio and digital television may also transmit multiplexed programming, with several channels compressed into one ensemble. When broadcasting is done via the Internet the term webcasting is often used. In 2004, a new phenomenon occurred when a number of technologies combined to produce podcasting. Podcasting is an asynchronous broadcast/narrowcast medium. Adam Curry and his associates, the Podshow, are principal proponents of podcasting. Film The term 'film' encompasses motion pictures as individual projects, as well as the field in general. The name comes from the photographic film (also called film stock), historically the primary medium for recording and displaying motion pictures. Many other terms for film exist, such as motion pictures (or just pictures and "picture"), the silver screen, photoplays, the cinema, picture shows, flicks and, most commonly, movies. Films are produced by recording people and objects with cameras, or by creating them using animation techniques or special effects. Films comprise a series of individual frames, but when these images are shown in rapid succession, an illusion of motion is created. Flickering between frames is not seen because of an effect known as persistence of vision, whereby the eye retains a visual image for a fraction of a second after the source has been removed. Also of relevance is what causes the perception of motion: a psychological effect identified as beta movement. Film has emerged as an important art form. They entertain, educate, enlighten and inspire audiences. Any film can become a worldwide attraction, especially with the addition of dubbing or subtitles that translate the original language. Video games A video game is a computer-controlled game in which a video display, such as a monitor or television set, is the primary feedback device. The term "computer game" also includes games which display only text or which use other methods, such as sound or vibration, as their primary feedback device. There always must also be some sort of input device, usually in the form of button/joystick combinations (on arcade games), a keyboard and mouse/trackball combination (computer games), a controller (console games), or a combination of any of the above. Also, more esoteric devices have been used for input, e.g., the player's motion. Usually there are rules and goals, but in more open-ended games the player may be free to do whatever they like within the confines of the virtual universe. In common usage, an "arcade game" refers to a game designed to be played in an establishment in which patrons pay to play on a per-use basis. A "computer game" or "PC game" refers to a game that is played on a personal computer. A "Console game" refers to one that is played on a device specifically designed for the use of such, while interfacing with a standard television set. A "video game" (or "videogame") has evolved into a catchall phrase that encompasses the aforementioned along with any game made for any other device, including, but not limited to, advanced calculators, mobile phones, PDAs, etc. Audio recording and reproduction Sound recording and reproduction is the electrical or mechanical re-creation or amplification of sound, often as music. This involves the use of audio equipment such as microphones, recording devices and loudspeakers. From early beginnings with the invention of the phonograph using purely mechanical techniques, the field has advanced with the invention of electrical recording, the mass production of the 78 record, the magnetic wire recorder followed by the tape recorder, the vinyl LP record. The invention of the compact cassette in the 1960s, followed by Sony's Walkman, gave a major boost to the mass distribution of music recordings, and the invention of digital recording and the compact disc in 1983 brought massive improvements in ruggedness and quality. The most recent developments have been in digital audio players. An album is a collection of related audio recordings, released together to the public, usually commercially. The term record album originated from the fact that 78 RPM phonograph disc records were kept together in a book resembling a photo album. The first collection of records to be called an "album" was Tchaikovsky's Nutcracker Suite, release in April 1909 as a four-disc set by Odeon Records. It retailed for 16 shillings—about £15 in modern currency. A music video (also promo) is a short film or video that accompanies a complete piece of music, most commonly a song. Modern music videos were primarily made and used as a marketing device intended to promote the sale of music recordings. Although the origins of music videos go back much further, they came into their own in the 1980s, when Music Television's format was based on them. In the 1980s, the term "rock video" was often used to describe this form of entertainment, although the term has fallen into disuse. Music videos can accommodate all styles of filmmaking, including animation, live-action films, documentaries, and non-narrative, abstract film. Internet The Internet (also known simply as "the Net" or less precisely as "the Web") is a more interactive medium of mass media, and can be briefly described as "a network of networks". Specifically, it is the worldwide, publicly accessible network of interconnected computer networks that transmit data by packet switching using the standard Internet Protocol (IP). It consists of millions of smaller domestic, academic, business and governmental networks, which together carry various information and services, such as email, online chat, file transfer, and the interlinked web pages and other documents of the World Wide Web. Contrary to some common usage, the Internet and the World Wide Web are not synonymous: the Internet is the system of interconnected computer networks, linked by copper wires, fibre-optic cables, wireless connections etc.; the Web is the contents, or the interconnected documents, linked by hyperlinks and URLs. The World Wide Web is accessible through the Internet, along with many other services including e-mail, file sharing and others described below. Toward the end of the 20th century, the advent of the World Wide Web marked the first era in which most individuals could have a means of exposure on a scale comparable to that of mass media. Anyone with a web site has the potential to address a global audience, although serving to high levels of web traffic is still relatively expensive. It is possible that the rise of peer-to-peer technologies may have begun the process of making the cost of bandwidth manageable. Although a vast amount of information, imagery, and commentary (i.e. "content") has been made available, it is often difficult to determine the authenticity and reliability of information contained in web pages (in many cases, self-published). The invention of the Internet has also allowed breaking news stories to reach around the globe within minutes. This rapid growth of instantaneous, decentralised communication is often deemed likely to change mass media and its relationship to society. "Cross-media" means the idea of distributing the same message through different media channels. A similar idea is expressed in the news industry as "convergence". Many authors understand cross-media publishing to be the ability to publish in both print and on the web without manual conversion effort. An increasing number of wireless devices with mutually incompatible data and screen formats make it even more difficult to achieve the objective "create once, publish many". The Internet is quickly becoming the center of mass media. Everything is becoming accessible via the internet. Rather than picking up a newspaper, or watching the 10 o'clock news, people can log onto the internet to get the news they want, when they want it. For example, many workers listen to the radio through the Internet while sitting at their desk. Even the education system relies on the Internet. Teachers can contact the entire class by sending one e-mail. They may have web pages on which students can get another copy of the class outline or assignments. Some classes have class blogs in which students are required to post weekly, with students graded on their contributions. Blogs (web logs) Blogging, too, has become a pervasive form of media. A blog is a website, usually maintained by an individual, with regular entries of commentary, descriptions of events, or interactive media such as images or video. Entries are commonly displayed in reverse chronological order, with most recent posts shown on top. Many blogs provide commentary or news on a particular subject; others function as more personal online diaries. A typical blog combines text, images and other graphics, and links to other blogs, web pages, and related media. The ability for readers to leave comments in an interactive format is an important part of many blogs. Most blogs are primarily textual, although some focus on art (artlog), photographs (photoblog), sketchblog, videos (vlog), music (MP3 blog) and audio (podcasting), are part of a wider network of social media. Microblogging is another type of blogging which consists of blogs with very short posts. RSS feeds RSS is a format for syndicating news and the content of news-like sites, including major news sites like Wired, news-oriented community sites like Slashdot, and personal blogs. It is a family of Web feed formats used to publish frequently updated content such as blog entries, news headlines, and podcasts. An RSS document (which is called a "feed" or "web feed" or "channel") contains either a summary of content from an associated web site or the full text. RSS makes it possible for people to keep up with web sites in an automated manner that can be piped into special programs or filtered displays. Podcast A podcast is a series of digital-media files which are distributed over the Internet using syndication feeds for playback on portable media players and computers. The term podcast, like broadcast, can refer either to the series of content itself or to the method by which it is syndicated; the latter is also called podcasting. The host or author of a podcast is often called a podcaster. Mobile Mobile phones were introduced in Japan in 1979 but became a mass media only in 1998 when the first downloadable ringing tones were introduced in Finland. Soon most forms of media content were introduced on mobile phones, tablets and other portable devices, and today the total value of media consumed on mobile vastly exceeds that of internet content, and was worth over $31 billion in 2007 (source Informa). The mobile media content includes over $8 billion worth of mobile music (ringing tones, ringback tones, truetones, MP3 files, karaoke, music videos, music streaming services etc.); over $5 billion worth of mobile gaming; and various news, entertainment and advertising services. In Japan mobile phone books are so popular that five of the ten best-selling printed books were originally released as mobile phone books. Similar to the internet, mobile is also an interactive media, but has far wider reach, with 3.3 billion mobile phone users at the end of 2007 to 1.3 billion internet users (source ITU). Like email on the internet, the top application on mobile is also a personal messaging service, but SMS text messaging is used by over 2.4 billion people. Practically all internet services and applications exist or have similar cousins on mobile, from search to multiplayer games to virtual worlds to blogs. Mobile has several unique benefits which many mobile media pundits claim make mobile a more powerful media than either TV or the internet, starting with mobile being permanently carried and always connected. Mobile has the best audience accuracy and is the only mass media with a built-in payment channel available to every user without any credit cards or PayPal accounts or even an age limit. Mobile is often called the 7th Mass Medium and either the fourth screen (if counting cinema, TV and PC screens) or the third screen (counting only TV and PC). Print media Magazine A magazine is a periodical publication containing a variety of articles, generally financed by advertising or purchase by readers. Magazines are typically published weekly, biweekly, monthly, bimonthly or quarterly, with a date on the cover that is in advance of the date it is actually published. They are often printed in color on coated paper, and are bound with a soft cover. Magazines fall into two broad categories: consumer magazines and business magazines. In practice, magazines are a subset of periodicals, distinct from those periodicals produced by scientific, artistic, academic or special interest publishers which are subscription-only, more expensive, narrowly limited in circulation, and often have little or no advertising. Magazines can be classified as: General interest magazines (e.g. Frontline, India Today, The Week, The Sunday Times etc.) Special interest magazines (women's, sports, business, scuba diving, etc.) Newspaper A newspaper is a publication containing news and information and advertising, usually printed on low-cost paper called newsprint. It may be general or special interest, most often published daily or weekly. The most important function of newspapers is to inform the public of significant events. Local newspapers inform local communities and include advertisements from local businesses and services, while national newspapers tend to focus on a theme, which can be exampled with The Wall Street Journal as they offer news on finance and business related-topics. The first printed newspaper was published in 1605, and the form has thrived even in the face of competition from technologies such as radio and television. Recent developments on the Internet are posing major threats to its business model, however. Paid circulation is declining in most countries, and advertising revenue, which makes up the bulk of a newspaper's income, is shifting from print to online; some commentators, nevertheless, point out that historically new media such as radio and television did not entirely supplant existing. The internet has challenged the press as an alternative source of information and opinion but has also provided a new platform for newspaper organisations to reach new audiences. According to the World Trends Report, between 2012 and 2016, print newspaper circulation continued to fall in almost all regions, with the exception of Asia and the Pacific, where the dramatic increase in sales in a few select countries has offset falls in historically strong Asian markets such as Japan and the Republic of Korea. Most notably, between 2012 and 2016, India's print circulation grew by 89 per cent. Outdoor media Outdoor media is a form of mass media which comprises billboards, signs, placards placed inside and outside commercial buildings/objects like shops/buses, flying billboards (signs in tow of airplanes), blimps, skywriting, AR advertising. Many commercial advertisers use this form of mass media when advertising in sports stadiums. Tobacco and alcohol manufacturers used billboards and other outdoor media extensively. However, in 1998, the Master Settlement Agreement between the US and the tobacco industries prohibited the billboard advertising of cigarettes. In a 1994 Chicago-based study, Diana Hackbarth and her colleagues revealed how tobacco- and alcohol-based billboards were concentrated in poor neighbourhoods. In other urban centers, alcohol and tobacco billboards were much more concentrated in African-American neighbourhoods than in white neighbourhoods. Purposes Mass media encompasses much more than just news, although it is sometimes misunderstood in this way. It can be used for various purposes: Advocacy, both for business and social concerns. This can include advertising, marketing, propaganda, public relations and political communication. Entertainment, traditionally through performances of acting, music and TV shows along with light reading; since the late 20th century also through video and computer games. Public service announcements and emergency alerts (that can be used as political device to communicate propaganda to the public). Professions involving mass media Journalism Journalism is the discipline of collecting, analyzing, verifying and presenting information regarding current events, trends, issues and people. Those who practice journalism are known as journalists. News-oriented journalism is sometimes described as the "first rough draft of history" (attributed to Phil Graham), because journalists often record important events, producing news articles on short deadlines. While under pressure to be first with their stories, news media organisations usually edit and proofread their reports prior to publication, adhering to each organisation's standards of accuracy, quality and style. Many news organisation claim proud traditions of holding government officials and institutions accountable to the public, while media critics have raised questions about holding the press itself accountable to the standards of professional journalism. Public relations Public relations is the art and science of managing communication between an organisation and its key publics to build, manage and sustain its positive image. Examples include: Corporations use marketing public relations to convey information about the products they manufacture or services they provide to potential customers to support their direct sales efforts. Typically, they support sales in the short and long term, establishing and burnishing the corporation's branding for a strong, ongoing market. Corporations also use public relations as a vehicle to reach legislators and other politicians, seeking favorable tax, regulatory, and other treatment, and they may use public relations to portray themselves as enlightened employers, in support of human-resources recruiting programs. Nonprofit organisations, including schools and universities, hospitals, and human and social service agencies, use public relations in support of awareness programs, fund-raising programs, staff recruiting, and to increase patronage of their services. Politicians use public relations to attract votes and raise money, and when successful at the ballot box, to promote and defend their service in office, with an eye to the next election or, at career's end, to their legacy. Publishing Publishing is the industry concerned with the production of literature or information – the activity of making information available for public view. In some cases, authors may be their own publishers. Traditionally, the term refers to the distribution of printed works such as books and newspapers. With the advent of digital information systems and the Internet, the scope of publishing has expanded to include websites, blogs and the like. As a business, publishing includes the development, marketing, production, and distribution of newspapers, magazines, books, literary works, musical works, software and other works dealing with information. Publication is also important as a legal concept; (1) as the process of giving formal notice to the world of a significant intention, for example, to marry or enter bankruptcy, and; (2) as the essential precondition of being able to claim defamation; that is, the alleged libel must have been published. Software publishing A software publisher is a publishing company in the software industry between the developer and the distributor. In some companies, two or all three of these roles may be combined (and indeed, may reside in a single person, especially in the case of shareware). Software publishers often license software from developers with specific limitations, such as a time limit or geographical region. The terms of licensing vary enormously, and are typically secret. Developers may use publishers to reach larger or foreign markets, or to avoid focussing on marketing. Or publishers may use developers to create software to meet a market need that the publisher has identified. Internet Based Professions A YouTuber is anyone who has made their fame from creating and promoting videos on the public video-sharing site, YouTube. Many YouTube celebrities have made a profession from their site through sponsorships, advertisements, product placement, and network support. History The history of mass media can be traced back to the days when dramas were performed in various ancient cultures. This was the first time when a form of media was "broadcast" to a wider audience. The first dated printed book known is the "Diamond Sutra", printed in China in 868 AD, although it is clear that books were printed earlier. Movable clay type was invented in 1041 in China. However, due to the slow spread of literacy to the masses in China, and the relatively high cost of paper there, the earliest printed mass-medium was probably European popular prints from about 1400. Although these were produced in huge numbers, very few early examples survive, and even most known to be printed before about 1600 have not survived. The term "mass media" was coined with the creation of print media, which is notable for being the first example of mass media, as we use the term today. This form of media started in Europe in the Middle Ages. Johannes Gutenberg's invention of the printing press allowed the mass production of books to sweep the nation. He printed the first book, a Latin Bible, on a printing press with movable type in 1453. The invention of the printing press gave rise to some of the first forms of mass communication, by enabling the publication of books and newspapers on a scale much larger than was previously possible. The invention also transformed the way the world received printed materials, although books remained too expensive really to be called a mass-medium for at least a century after that. Newspapers developed from about 1612, with the first example in English in 1620; but they took until the 19th century to reach a mass-audience directly. The first high-circulation newspapers arose in London in the early 1800s, such as The Times, and were made possible by the invention of high-speed rotary steam printing presses, and railroads which allowed large-scale distribution over wide geographical areas. The increase in circulation, however, led to a decline in feedback and interactivity from the readership, making newspapers a more one-way medium. The phrase "the media" began to be used in the 1920s. The notion of "mass media" was generally restricted to print media up until the post-Second World War, when radio, television and video were introduced. The audio-visual facilities became very popular, because they provided both information and entertainment, because the colour and sound engaged the viewers/listeners and because it was easier for the general public to passively watch TV or listen to the radio than to actively read. In recent times, the Internet become the latest and most popular mass medium. Information has become readily available through websites, and easily accessible through search engines. One can do many activities at the same time, such as playing games, listening to music and social networking, irrespective of location. Whilst other forms of mass media are restricted in the type of information they can offer, the internet comprises a large percentage of the sum of human knowledge through such things as Google Books. Modern-day mass media includes the internet, mobile phones, blogs, podcasts and RSS feeds. During the 20th century, the growth of mass media was driven by technology, including that which allowed much duplication of material. Physical duplication technologies such as printing, record pressing and film duplication allowed the duplication of books, newspapers and movies at low prices to huge audiences. Radio and television allowed the electronic duplication of information for the first time. Mass media had the economics of linear replication: a single work could make money. An example of Riel and Neil's theory. proportional to the number of copies sold, and as volumes went up, unit costs went down, increasing profit margins further. Vast fortunes were to be made in mass media. In a democratic society, the media can serve the electorate about issues regarding government and corporate entities (see Media influence). Some consider the concentration of media ownership to be a threat to democracy. Mergers and acquisitions Between 1985 and 2018 about 76,720 deals have been announced in the media industry. This sums up to an overall value of around US$5,634 billion. There have been three major waves of M&A in the mass media sector (2000, 2007 and 2015), while the most active year in terms of numbers was 2007 with around 3,808 deals. The United States is the most prominent country in media M&A with 41 of the top 50 deals having an acquirer from the United States. The largest deal in history was the acquisition of Time Warner by AOL Inc. for US$164,746.86 million. Influence and sociology Limited-effects theory, originally tested in the 1940s and 1950s, considers that because people usually choose what media to interact with based on what they already believe, media exerts a negligible influence. Class-dominant theory argues that the media reflects and projects the view of a minority elite, which controls it. Culturalist theory, which was developed in the 1980s and 1990s, combines the other two theories and claims that people interact with media to create their own meanings out of the images and messages they receive. This theory states that audience members play an active, rather than passive role in relation to mass media. There is an article that argues 90 percent of all mass media including radio broadcast networks and programing, video news, sports entertainment, and others are owned by 6 major companies (GE, News-Corp, Disney, Viacom, Time Warner and CBS). According to Morris Creative Group, these six companies made over $200 billion in revenue in 2010. More diversity is brewing among many companies, but they have recently merged to form an elite which have the power to control the narrative of stories and alter people's beliefs. In the new media-driven age we live in, marketing has more value than ever before because of the various ways it can be implemented. Advertisements can convince citizens to purchase a specific product or have consumers avoid a particular product. The definition of what is acceptable by society can be heavily dictated by the media in regards to the amount of attention it receives. The documentary Super Size Me describes how companies like McDonald's have been sued in the past, the plaintiffs claiming that it was the fault of their liminal and subliminal advertising that "forced" them to purchase the product. The Barbie and Ken dolls of the 1950s are sometimes cited as the main cause for the obsession in modern-day society for women to be skinny and men to be buff. After the attacks of 9/11, the media gave extensive coverage of the event and exposed Osama Bin Laden's guilt for the attack, information they were told by the authorities. This shaped the public opinion to support the war on terrorism, and later, the war on Iraq. A main concern is that due to this extreme power of the mass media, portraying inaccurate information could lead to an immense public concern. In his book The Commercialization of American Culture, Matthew P. McAllister says that "a well-developed media system, informing and teaching its citizens, helps democracy move toward its ideal state." In 1997, J. R. Finnegan Jr. and K. Viswanath identified three main effects or functions of mass media: The Knowledge Gap: The mass media influences knowledge gaps due to factors including "the extent to which the content is appealing, the degree to which information channels are accessible and desirable, and the amount of social conflict and diversity there is in a community". Agenda Setting: People are influenced in how they think about issues due to the selective nature of what media groups choose for public consumption. After publicly disclosing that he had prostate cancer prior to the 2000 New York senatorial election, Rudolph Giuliani, the mayor of New York City (aided by the media) sparked a huge priority elevation of the cancer in people's consciousness. This was because news media began to report on the risks of prostate cancer, which in turn prompted a greater public awareness about the disease and the need for screening. This ability for the media to be able to change how the public thinks and behaves has occurred on other occasions. In mid-1970s when Betty Ford and Happy Rockefeller, wives of the then-President and then-Vice President, respectively, were both diagnosed with breast cancer. J. J. Davis states that "when risks are highlighted in the media, particularly in great detail, the extent of agenda setting is likely to be based on the degree to which a public sense of outrage and threat is provoked". When wanting to set an agenda, framing can be invaluably useful to a mass media organisation. Framing involves "taking a leadership role in the organisation of public discourse about an issue". The media is influenced by the desire for balance in coverage, and the resulting pressures can come from groups with particular political action and advocacy positions. Finnegan and Viswanath say, "groups, institutions and advocates compete to identify problems, to move them onto the public agenda, and to define the issues symbolically" (1997, p. 324). Cultivation of Perceptions: The extent to which media exposure shapes audience perceptions over time is known as cultivation. Television is a common experience, especially in places like the United States, to the point where it can be described as a "homogenising agent" (S. W. Littlejohn). However, instead of being merely a result of the TV, the effect is often based on socioeconomic factors. Having a prolonged exposure to TV or movie violence might affect a viewer to the extent where they actively think community violence is a problem, or alternatively find it justifiable. The resulting belief is likely to be different depending on where people live, however. Since the 1950s, when cinema, radio and TV began to be the primary or the only source of information for a larger and larger percentage of the population, these media began to be considered as central instruments of mass control. Up to the point that it emerged the idea that when a country has reached a high level of industrialisation, the country itself "belongs to the person who controls communications." Mass media play a significant role in shaping public perceptions on a variety of important issues, both through the information that is dispensed through them, and through the interpretations they place upon this information. They also play a large role in shaping modern culture, by selecting and portraying a particular set of beliefs, values and traditions (an entire way of life), as reality. That is, by portraying a certain interpretation of reality, they shape reality to be more in line with that interpretation. Mass media also play a crucial role in the spread of civil unrest activities such as anti-government demonstrations, riots and general strikes. That is, the use of radio and television receivers has made the unrest influence among cities not only by the geographic location of cities, but also by proximity within the mass media distribution networks. Racism and stereotyping Mass media sources, through theories like framing and agenda-setting, can affect the scope of a story as particular facts and information are highlighted (Media influence). This can directly correlate with how individuals may perceive certain groups of people, as the only media coverage a person receives can be very limited and may not reflect the whole story or situation; stories are often covered to reflect a particular perspective to target a specific demographic. Example According to Stephen Balkaran, an Instructor of Political Science and African American Studies at Central Connecticut State University, mass media has played a large role in the way white Americans perceive African Americans. The media focus on African American in the contexts of crime, drug use, gang violence and other forms of anti-social behavior has resulted in a distorted and harmful public perception of African Americans. In his 1999 article "Mass Media and Racism", Balkaran states: "The media has played a key role in perpetuating the effects of this historical oppression and in contributing to African Americans' continuing status as second-class citizens". This has resulted in an uncertainty among white Americans as to what the genuine nature of African Americans really is. Despite the resulting racial divide, the fact that these people are undeniably American has "raised doubts about the white man's value system". This means that there is a somewhat "troubling suspicion" among some Americans that their white America is tainted by the black influence. Mass media as well as propaganda tend to reinforce or introduce stereotypes to the general public. Ethical issues and criticism Lack of local or specific topical focus is a common criticism of mass media. A mass news media outlet is often forced to cover national and international news due to it having to cater for and be relevant for a wide demographic. As such, it has to skip over many interesting or important local stories because they simply do not interest the large majority of their viewers. An example given by the website WiseGeek is that "the residents of a community might view their fight against development as critical, but the story would only attract the attention of the mass media if the fight became controversial or if precedents of some form were set". The term "mass" suggests that the recipients of media products constitute a vast sea of passive, undifferentiated individuals. This is an image associated with some earlier critiques of "mass culture" and mass society which generally assumed that the development of mass communication has had a largely negative impact on modern social life, creating a kind of bland and homogeneous culture which entertains individuals without challenging them. However, interactive digital media have also been seen to challenge the read-only paradigm of earlier broadcast media. Whilst some refer to the mass media as "opiate of the masses", others argue that is a vital aspect of human societies. By understanding mass media, one is then able to analyse and find a deeper understanding of one's population and culture. This valuable and powerful ability is one reason why the field of media studies is popular. As WiseGeek says, "watching, reading, and interacting with a nation's mass media can provide clues into how people think, especially if a diverse assortment of mass media sources are perused". Since the 1950s, in the countries that have reached a high level of industrialisation, the mass media of cinema, radio and TV have a key role in political power. Contemporary research demonstrates an increasing level of concentration of media ownership, with many media industries already highly concentrated and dominated by a small number of firms. Criticism When the study of mass media began the media was compiled of only mass media which is a very different media system than the social media empire of the 21st-century experiences. With this in mind, there are critiques that mass media no longer exists, or at least that it doesn't exist in the same form as it once did. This original form of mass media put filters on what the general public would be exposed to in regards to "news" something that is harder to do in a society of social media. Theorist Lance Bennett explains that excluding a few major events in recent history, it is uncommon for a group big enough to be labeled a mass, to be watching the same news via the same medium of mass production. Bennett's critique of 21st-century mass media argues that today it is more common for a group of people to be receiving different news stories, from completely different sources, and thus, mass media has been re-invented. As discussed above, filters would have been applied to original mass medias when the journalists decided what would or wouldn't be printed. Social Media is a large contributor to the change from mass media to a new paradigm because through social media what is mass communication and what is interpersonal communication is confused. Interpersonal/niche communication is an exchange of information and information in a specific genre. In this form of communication, smaller groups of people are consuming news/information/opinions. In contrast, mass media in its original form is not restricted by genre and it is being consumed by the masses. See also Commercial broadcasting Concentration of media ownership Digital rights management Interpersonal communication Journalism History of journalism Media bias Media echo chamber Media regulation Media-system dependency Mediatization (media) News media Newspapers History of Newspapers Propaganda Public relations State media Sources Notes Works cited Further reading Bösch, Frank. Mass Media and Historical Change: Germany in International Perspective, 1400 to the Present (Berghahn, 2015). 212 pp. online review Cull, Nicholas John, David Culbert and David Welch, eds. Mass Persuasion: A Historical Encyclopedia, 1500 to the Present (2003) 479 pp; worldwide coverage Dauber, Cori Elizabeth. "The shot seen 'round the world': The impact of the images of Mogadishu on American military operations." Rhetoric & Public Affairs 4.4 (2001): 653-687 online. Folkerts, Jean and Dwight Teeter, eds. Voices of a Nation: A History of Mass Media in the United States (5th Edition, 2008) Fourie, Pieter J. Media Studies: Media History, Media and Society (2008) Graber, Doris A., and Johanna Dunaway. Mass media and American politics;; (CQ Press, 2017) Paneth, Donald, ed. The Encyclopedia of American journalism (1983) online Ross, Corey. Mass Communications, Society, and Politics from the Empire to the Third Reich (Oxford University press 2010) 448 pp, on Germany Vaughn, Stephen L., ed. Encyclopedia of American Journalism (2007) online In other languages Hacker, Violaine "Citoyenneté culturelle et politique européenne des médias: entre compétitivité et promotion des valeurs", Nations, cultures et entreprises en Europe,'' sous la direction de Gilles Rouet, Collection Local et Global, L’Harmattan, Paris, pp. 163–84 External links The Media: Carriers of Contagious Information Peter Medlin, WNIJ, "Illinois Is the First State to Have High Schools Teach News Literacy," National Public Radio, August 12, 2021 Promotion and marketing communications Main topic articles

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https://en.wikipedia.org/wiki/Mahabharata

Mahabharata

The Mahābhārata ( ; , , ) is one of the two major Sanskrit epics of ancient India, the other being the Rāmāyaṇa. It narrates the struggle between two groups of cousins in the Kurukshetra War and the fates of the Kaurava and the Pāṇḍava princes and their successors. It also contains philosophical and devotional material, such as a discussion of the four "goals of life" or puruṣārtha (12.161). Among the principal works and stories in the Mahābhārata are the Bhagavad Gita, the story of Damayanti, the story of Shakuntala, the story of Pururava and Urvashi, the story of Savitri and Satyavan, the story of Kacha and Devayani, the story of Rishyasringa and an abbreviated version of the Rāmāyaṇa, often considered as works in their own right. Traditionally, the authorship of the Mahābhārata is attributed to Vyāsa. There have been many attempts to unravel its historical growth and compositional layers. The bulk of the Mahābhārata was probably compiled between the 3rd century BCE and the 3rd century CE, with the oldest preserved parts not much older than around 400 BCE. The original events related by the epic probably fall between the 9th and 8th centuries BCE. The text probably reached its final form by the early Gupta period (c. 4th century CE). The Mahābhārata is the longest epic poem known and has been described as "the longest poem ever written". Its longest version consists of over 100,000 śloka or over 200,000 individual verse lines (each shloka is a couplet), and long prose passages. At about 1.8 million words in total, the Mahābhārata is roughly ten times the length of the Iliad and the Odyssey combined, or about four times the length of the Rāmāyaṇa. W. J. Johnson has compared the importance of the Mahābhārata in the context of world civilization to that of the Bible, the Quran, the works of Homer, Greek drama, or the works of William Shakespeare. Within the Indian tradition it is sometimes called the fifth Veda. Textual history and structure The epic is traditionally ascribed to the sage Vyāsa, who is also a major character in the epic. Vyāsa described it as being itihāsa (). He also describes the Guru–shishya tradition, which traces all great teachers and their students of the Vedic times. The first section of the Mahābhārata states that it was Ganesha who wrote down the text to Vyasa's dictation, but this is regarded by scholars as a later interpolation to the epic and the "Critical Edition" doesn't include Ganesha at all. The epic employs the story within a story structure, otherwise known as frametales, popular in many Indian religious and non-religious works. It is first recited at Takshashila by the sage Vaiśampāyana, a disciple of Vyāsa, to the King Janamejaya who was the great-grandson of the Pāṇḍava prince Arjuna. The story is then recited again by a professional storyteller named Ugraśrava Sauti, many years later, to an assemblage of sages performing the 12-year sacrifice for the king Saunaka Kulapati in the Naimiśa Forest. The text was described by some early 20th-century Indologists as unstructured and chaotic. Hermann Oldenberg supposed that the original poem must once have carried an immense "tragic force" but dismissed the full text as a "horrible chaos." Moritz Winternitz (Geschichte der indischen Literatur 1909) considered that "only unpoetical theologists and clumsy scribes" could have lumped the parts of disparate origin into an unordered whole. Accretion and redaction Research on the Mahābhārata has put an enormous effort into recognizing and dating layers within the text. Some elements of the present Mahābhārata can be traced back to Vedic times. The background to the Mahābhārata suggests the origin of the epic occurs "after the very early Vedic period" and before "the first Indian 'empire' was to rise in the third century B.C." That this is "a date not too far removed from the 8th or 9th century B.C." is likely. Mahābhārata started as an orally-transmitted tale of the charioteer bards. It is generally agreed that "Unlike the Vedas, which have to be preserved letter-perfect, the epic was a popular work whose reciters would inevitably conform to changes in language and style," so the earliest 'surviving' components of this dynamic text are believed to be no older than the earliest 'external' references we have to the epic, which may include an allusion in Panini's 4th century BCE grammar Aṣṭādhyāyī 4:2:56. It is estimated that the Sanskrit text probably reached something of a "final form" by the early Gupta period (about the 4th century CE). Vishnu Sukthankar, editor of the first great critical edition of the Mahābhārata, commented: "It is useless to think of reconstructing a fluid text in an original shape, based on an archetype and a stemma codicum. What then is possible? Our objective can only be to reconstruct the oldest form of the text which it is possible to reach based on the manuscript material available." That manuscript evidence is somewhat late, given its material composition and the climate of India, but it is very extensive. The Mahābhārata itself (1.1.61) distinguishes a core portion of 24,000 verses: the Bhārata proper, as opposed to additional secondary material, while the Aśvalāyana Gṛhyasūtra (3.4.4) makes a similar distinction. At least three redactions of the text are commonly recognized: Jaya (Victory) with 8,800 verses attributed to Vyāsa, Bhārata with 24,000 verses as recited by Vaiśampāyana, and finally the Mahābhārata as recited by Ugraśrava Sauti with over 100,000 verses. However, some scholars, such as John Brockington, argue that Jaya and Bharata refer to the same text, and ascribe the theory of Jaya with 8,800 verses to a misreading of a verse in Ādiparvan (1.1.81). The redaction of this large body of text was carried out after formal principles, emphasizing the numbers 18 and 12. The addition of the latest parts may be dated by the absence of the Anuśāsana-Parva and the Virāta Parva from the "Spitzer manuscript". The oldest surviving Sanskrit text dates to the Kushan Period (200 CE). According to what one character says at Mbh. 1.1.50, there were three versions of the epic, beginning with Manu (1.1.27), Astika (1.3, sub-Parva 5), or Vasu (1.57), respectively. These versions would correspond to the addition of one and then another 'frame' settings of dialogues. The Vasu version would omit the frame settings and begin with the account of the birth of Vyasa. The astika version would add the sarpasattra and aśvamedha material from Brahmanical literature, introduce the name Mahābhārata, and identify Vyāsa as the work's author. The redactors of these additions were probably Pāñcarātrin scholars who according to Oberlies (1998) likely retained control over the text until its final redaction. Mention of the Huna in the Bhīṣma-Parva however appears to imply that this Parva may have been edited around the 4th century. The Ādi-Parva includes the snake sacrifice (sarpasattra) of Janamejaya, explaining its motivation, detailing why all snakes in existence were intended to be destroyed, and why despite this, there are still snakes in existence. This sarpasattra material was often considered an independent tale added to a version of the Mahābhārata by "thematic attraction" (Minkowski 1991), and considered to have a particularly close connection to Vedic (Brahmana) literature. The Pañcavimśa Brahmana (at 25.15.3) enumerates the officiant priests of a sarpasattra among whom the names Dhṛtarāṣtra and Janamejaya, two main characters of the Mahābhāratas sarpasattra, as well as Takṣaka, the name of a snake in the Mahābhārata, occur. The Suparṇākhyāna, a late Vedic period poem considered to be among the "earliest traces of epic poetry in India," is an older, shorter precursor to the expanded legend of Garuda that is included in the Āstīka Parva, within the Ādi Parva of the Mahābhārata. Historical references The earliest known references to bhārata and the compound mahābhārata date to the Aṣṭādhyāyī (sutra 6.2.38) of Pāṇini (fl. 4th century BCE) and the Aśvalāyana Gṛhyasūtra (3.4.4). This may mean the core 24,000 verses, known as the Bhārata, as well as an early version of the extended Mahābhārata, were composed by the 4th century BCE. However, it is not certain whether Pāṇini referred to the epic, as bhārata was also used to describe other things. Albrecht Weber mentions the Rigvedic tribe of the Bharatas, where a great person might have been designated as Mahā-Bhārata. However, as Páṇini also mentions characters that play a role in the Mahābhārata, some parts of the epic may have already been known in his day. Another aspect is that Pāṇini determined the accent of mahā-bhārata. However, the Mahābhārata was not recited in Vedic accent. The Greek writer Dio Chrysostom (c. 40 – c. 120 CE) reported that Homer's poetry was being sung even in India. Many scholars have taken this as evidence for the existence of a Mahābhārata at this date, whose episodes Dio or his sources identify with the story of the Iliad. Several stories within the Mahābhārata took on separate identities of their own in Classical Sanskrit literature. For instance, Abhijñānaśākuntala by the renowned Sanskrit poet Kālidāsa (c. 400 CE), believed to have lived in the era of the Gupta dynasty, is based on a story that is the precursor to the Mahābhārata. Urubhaṅga, a Sanskrit play written by Bhāsa who is believed to have lived before Kālidāsa, is based on the slaying of Duryodhana by the splitting of his thighs by Bhīma. The copper-plate inscription of the Maharaja Sharvanatha (533–534 CE) from Khoh (Satna District, Madhya Pradesh) describes the Mahābhārata as a "collection of 100,000 verses" (śata-sahasri saṃhitā). The 18 parvas or books The Mahabharata begins with the following hymn and in fact this praise has been made at the beginning of every Parva: "Om! Having bowed down to Narayana and Nara (Arjuna), the most exalted male being, and also to the goddess Saraswati, must the word Jaya be uttered."''' Nara-Narayana were two ancient sages who were the portion of Shree Vishnu. Nara was the previous birth of Arjuna and the friend of Narayana, while Narayana was the incarnation of Shree Vishnu and thus the previous birth of Shree Krishna. The division into 18 parvas is as follows: Historical context The historicity of the Kurukshetra War is unclear. Many historians estimate the date of the Kurukshetra war to Iron Age India of the 10th century BCE. The setting of the epic has a historical precedent in Iron Age (Vedic) India, where the Kuru kingdom was the center of political power during roughly 1200 to 800  BCE. A dynastic conflict of the period could have been the inspiration for the Jaya, the foundation on which the Mahābhārata corpus was built, with a climactic battle, eventually coming to be viewed as an epochal event. Puranic literature presents genealogical lists associated with the Mahābhārata narrative. The evidence of the Puranas is of two kinds. Of the first kind, there is the direct statement that there were 1015 (or 1050) years between the birth of Parikshit (Arjuna's grandson) and the accession of Mahapadma Nanda (400-329  BCE), which would yield an estimate of about 1400  BCE for the Bharata battle. However, this would imply improbably long reigns on average for the kings listed in the genealogies. Of the second kind is analyses of parallel genealogies in the Puranas between the times of Adhisimakrishna (Parikshit's great-grandson) and Mahapadma Nanda. Pargiter accordingly estimated 26 generations by averaging 10 different dynastic lists and, assuming 18 years for the average duration of a reign, arrived at an estimate of 850  BCE for Adhisimakrishna, and thus approximately 950  BCE for the Bharata battle. B. B. Lal used the same approach with a more conservative assumption of the average reign to estimate a date of 836 BCE, and correlated this with archaeological evidence from Painted Grey Ware (PGW) sites, the association being strong between PGW artifacts and places mentioned in the epic. John Keay confirms this and also gives 950 BCE for the Bharata battle. Attempts to date the events using methods of archaeoastronomy have produced, depending on which passages are chosen and how they are interpreted, estimates ranging from the late 4th to the mid-2nd millennium BCE. The late 4th-millennium date has a precedent in the calculation of the Kali Yuga epoch, based on planetary conjunctions, by Aryabhata (6th century). Aryabhata's date of 18 February 3102  BCE for Mahābhārata war has become widespread in Indian tradition. Some sources mark this as the disappearance of Krishna from the Earth. The Aihole inscription of Pulikeshi II, dated to Saka 556 = 634 CE, claims that 3735 years have elapsed since the Bharata battle, putting the date of Mahābhārata war at 3137 BCE.Gupta and Ramachandran (1976), p.55; AD Pusalker, HCIP, Vol I, p.272 Another traditional school of astronomers and historians, represented by Vriddha-Garga, Varahamihira (author of the Brhatsamhita) and Kalhana (author of the Rajatarangini), place the Bharata war 653 years after the Kali Yuga epoch, corresponding to 2449 BCE. Characters Synopsis The core story of the work is that of a dynastic struggle for the throne of Hastinapura, the kingdom ruled by the Kuru clan. The two collateral branches of the family that participate in the struggle are the Kaurava and the Pandava. Although the Kaurava is the senior branch of the family, Duryodhana, the eldest Kaurava, is younger than Yudhishthira, the eldest Pandava. Both Duryodhana and Yudhishthira claim to be first in line to inherit the throne. The struggle culminates in the great battle of Kurukshetra, in which the Pandavas are ultimately victorious. The battle produces complex conflicts of kinship and friendship, instances of family loyalty and duty taking precedence over what is right, as well as the converse. The Mahābhārata itself ends with the death of Krishna, and the subsequent end of his dynasty and ascent of the Pandava brothers to heaven. It also marks the beginning of the Hindu age of Kali Yuga, the fourth and final age of humankind, in which great values and noble ideas have crumbled, and people are heading towards the complete dissolution of right action, morality, and virtue. The older generations King Janamejaya's ancestor Shantanu, the king of Hastinapura, has a short-lived marriage with the goddess Ganga and has a son, Devavrata (later to be called Bhishma, a great warrior), who becomes the heir apparent. Many years later, when King Shantanu goes hunting, he sees Satyavati, the daughter of the chief of fisherman, and asks her father for her hand. Her father refuses to consent to the marriage unless Shantanu promises to make any future son of Satyavati the king upon his death. To resolve his father's dilemma, Devavrata agrees to relinquish his right to the throne. As the fisherman is not sure about the prince's children honoring the promise, Devavrata also takes a vow of lifelong celibacy to guarantee his father's promise. Shantanu has two sons by Satyavati, Chitrāngada and Vichitravirya. Upon Shantanu's death, Chitrangada becomes king. He lives a very short uneventful life and dies. Vichitravirya, the younger son, rules Hastinapura. Meanwhile, the King of Kāśī arranges a swayamvara for his three daughters, neglecting to invite the royal family of Hastinapur. To arrange the marriage of young Vichitravirya, Bhishma attends the swayamvara of the three princesses Amba, Ambika, and Ambalika, uninvited, and proceeds to abduct them. Ambika and Ambalika consent to be married to Vichitravirya. The oldest princess Amba, however, informs Bhishma that she wishes to marry the king of Shalva whom Bhishma defeated at their swayamvara. Bhishma lets her leave to marry the king of Shalva, but Shalva refuses to marry her, still smarting at his humiliation at the hands of Bhishma. Amba then returns to marry Bhishma but he refuses due to his vow of celibacy. Amba becomes enraged and becomes Bhishma's bitter enemy, holding him responsible for her plight. Later she is reborn to King Drupada as Shikhandi (or Shikhandini) and causes Bhishma's fall, with the help of Arjuna, in the battle of Kurukshetra. The Pandava and Kaurava princes When Vichitravirya dies young without any heirs, Satyavati asks her first son Vyasa to father children with the widows. The eldest, Ambika, shuts her eyes when she sees him, and so her son Dhritarashtra is born blind. Ambalika turns pale and bloodless upon seeing him, and thus her son Pandu is born pale and unhealthy (the term Pandu may also mean 'jaundiced'). Due to the physical challenges of the first two children, Satyavati asks Vyasa to try once again. However, Ambika and Ambalika send their maid instead, to Vyasa's room. Vyasa fathers a third son, Vidura, by the maid. He is born healthy and grows up to be one of the wisest characters in the Mahabharata. He serves as Prime Minister (Mahamantri or Mahatma) to King Pandu and King Dhritarashtra. When the princes grow up, Dhritarashtra is about to be crowned king by Bhishma when Vidura intervenes and uses his knowledge of politics to assert that a blind person cannot be king. This is because a blind man cannot control and protect his subjects. The throne is then given to Pandu because of Dhritarashtra's blindness. Pandu marries twice, to Kunti and Madri. Dhritarashtra marries Gandhari, a princess from Gandhara, who blindfolds herself for the rest of her life so that she may feel the pain that her husband feels. Her brother Shakuni is enraged by this and vows to take revenge on the Kuru family. One day, when Pandu is relaxing in the forest, he hears the sound of a wild animal. He shoots an arrow in the direction of the sound. However, the arrow hits the sage Kindama, who was engaged in a sexual act in the guise of a deer. He curses Pandu that if he engages in a sexual act, he will die. Pandu then retires to the forest along with his two wives, and his brother Dhritarashtra rules thereafter, despite his blindness. Pandu's older queen Kunti, however, had been given a boon by Sage Durvasa that she could invoke any god using a special mantra. Kunti uses this boon to ask Dharma the god of justice, Vayu the god of the wind, and Indra the lord of the heavens for sons. She gives birth to three sons, Yudhishthira, Bhima, and Arjuna, through these gods. Kunti shares her mantra with the younger queen Madri, who bears the twins Nakula and Sahadeva through the Ashwini twins. However, Pandu and Madri indulge in lovemaking, and Pandu dies. Madri commits suicide out of remorse. Kunti raises the five brothers, who are from then on usually referred to as the Pandava brothers. Dhritarashtra has a hundred sons through Gandhari, all born after the birth of Yudhishthira. These are the Kaurava brothers, the eldest being Duryodhana, and the second Dushasana. Other Kaurava brothers were Vikarna and Sukarna. The rivalry and enmity between them and the Pandava brothers, from their youth and into manhood, leads to the Kurukshetra war. Lakshagraha (the house of lac) After the deaths of their mother (Madri) and father (Pandu), the Pandavas and their mother Kunti return to the palace of Hastinapur. Yudhishthira is made Crown Prince by Dhritarashtra, under considerable pressure from his courtiers. Dhritarashtra wanted his son Duryodhana to become king and lets his ambition get in the way of preserving justice. Shakuni, Duryodhana, and Dushasana plot to get rid of the Pandavas. Shakuni calls the architect Purochana to build a palace out of flammable materials like lac and ghee. He then arranges for the Pandavas and the Queen Mother Kunti to stay there, intending to set it alight. However, the Pandavas are warned by their wise uncle, Vidura, who sends them a miner to dig a tunnel. They can escape to safety and go into hiding. During this time Bhima marries a demoness Hidimbi and has a son Ghatotkacha. Back in Hastinapur, the Pandavas and Kunti are presumed dead. Marriage to Draupadi Whilst they were in hiding the Pandavas learn of a swayamvara which is taking place for the hand of the Pāñcāla princess Draupadī. The Pandavas disguised as Brahmins come to witness the event. Meanwhile, Krishna who has already befriended Draupadi, tells her to look out for Arjuna (though now believed to be dead). The task was to string a mighty steel bow and shoot a target on the ceiling, which was the eye of a moving artificial fish while looking at its reflection in oil below. In popular versions, after all the princes fail, many being unable to lift the bow, Karna proceeds to the attempt but is interrupted by Draupadi who refuses to marry a suta (this has been excised from the Critical Edition of Mahabharata as later interpolation). After this the swayamvara is opened to the Brahmins leading Arjuna to win the contest and marry Draupadi. The Pandavas return home and inform their meditating mother that Arjuna has won a competition and to look at what they have brought back. Without looking, Kunti asks them to share whatever Arjuna has won amongst themselves, thinking it to be alms. Thus, Draupadi ends up being the wife of all five brothers. Indraprastha After the wedding, the Pandava brothers are invited back to Hastinapura. The Kuru family elders and relatives negotiate and broker a split of the kingdom, with the Pandavas obtaining and demanding only a wild forest inhabited by Takshaka, the king of snakes, and his family. Through hard work, the Pandavas can build a new glorious capital for the territory at Indraprastha. Shortly after this, Arjuna elopes with and then marries Krishna's sister, Subhadra. Yudhishthira wishes to establish his position as king; he seeks Krishna's advice. Krishna advises him, and after due preparation and the elimination of some opposition, Yudhishthira carries out the rājasūya yagna ceremony; he is thus recognized as pre-eminent among kings. The Pandavas have a new palace built for them, by Maya the Danava. They invite their Kaurava cousins to Indraprastha. Duryodhana walks round the palace, and mistakes a glossy floor for water, and will not step in. After being told of his error, he then sees a pond and assumes it is not water and falls in. Bhima, Arjun, the twins and the servants laugh at him. In popular adaptations, this insult is wrongly attributed to Draupadi, even though in the Sanskrit epic, it was the Pandavas (except Yudhishthira) who had insulted Duryodhana. Enraged by the insult, and jealous at seeing the wealth of the Pandavas, Duryodhana decides to host a dice-game at Shakuni's suggestion. The dice game Shakuni, Duryodhana's uncle, now arranges a dice game, playing against Yudhishthira with loaded dice. In the dice game, Yudhishthira loses all his wealth, then his kingdom. Yudhishthira then gambles his brothers, himself, and finally his wife into servitude. The jubilant Kauravas insult the Pandavas in their helpless state and even try to disrobe Draupadi in front of the entire court, but Draupadi's disrobe is prevented by Krishna, who miraculously make her dress endless, therefore it couldn't be removed. Dhritarashtra, Bhishma, and the other elders are aghast at the situation, but Duryodhana is adamant that there is no place for two crown princes in Hastinapura. Against his wishes Dhritarashtra orders for another dice game. The Pandavas are required to go into exile for 12 years, and in the 13th year, they must remain hidden. If they are discovered by the Kauravas in the 13th year of their exile, then they will be forced into exile for another 12 years. Exile and return The Pandavas spend thirteen years in exile; many adventures occur during this time. The Pandavas acquire many divine weapons, given by gods, during this period. They also prepare alliances for a possible future conflict. They spend their final year in disguise in the court of the king Virata, and they are discovered just after the end of the year. At the end of their exile, they try to negotiate a return to Indraprastha with Krishna as their emissary. However, this negotiation fails, because Duryodhana objected that they were discovered in the 13th year of their exile and the return of their kingdom was not agreed upon. Then the Pandavas fought the Kauravas, claiming their rights over Indraprastha. The battle at Kurukshetra The two sides summon vast armies to their help and line up at Kurukshetra for a war. The kingdoms of Panchala, Dwaraka, Kasi, Kekaya, Magadha, Matsya, Chedi, Pandyas, Telinga, and the Yadus of Mathura and some other clans like the Parama Kambojas were allied with the Pandavas. The allies of the Kauravas included the kings of Pragjyotisha, Anga, Kekaya, Sindhudesa (including Sindhus, Sauviras and Sivis), Mahishmati, Avanti in Madhyadesa, Madra, Gandhara, Bahlika people, Kambojas and many others. Before war being declared, Balarama had expressed his unhappiness at the developing conflict and leaves to go on pilgrimage; thus he does not take part in the battle itself. Krishna takes part in a non-combatant role, as charioteer (Sarathy) for Arjuna and offers Narayani Sena consisting of Abhira gopas to the Kauravas to fight on their side. Before the battle, Arjuna, noticing that the opposing army includes his cousins and relatives, including his grandfather Bhishma and his teacher Drona, has grave doubts about the fight. He falls into despair and refuses to fight. At this time, Krishna reminds him of his duty as a Kshatriya to fight for a righteous cause in the famous Bhagavad Gita section of the epic. Though initially sticking to chivalrous notions of warfare, both sides soon adopt dishonorable tactics. At the end of the 18-day battle, only the Pandavas, Satyaki, Kripa, Ashwatthama, Kritavarma, Yuyutsu and Krishna survive. Yudhisthir becomes King of Hastinapur and Gandhari curses Krishna that the downfall of his clan is imminent. The end of the Pandavas After "seeing" the carnage, Gandhari, who had lost all her sons, curses Krishna to be a witness to a similar annihilation of his family, for though divine and capable of stopping the war, he had not done so. Krishna accepts the curse, which bears fruit 36 years later. The Pandavas, who had ruled their kingdom meanwhile, decide to renounce everything. Clad in skins and rags they retire to the Himalaya and climb towards heaven in their bodily form. A stray dog travels with them. One by one the brothers and Draupadi fall on their way. As each one stumbles, Yudhishthira gives the rest the reason for their fall (Draupadi was partial to Arjuna, Nakula and Sahadeva were vain and proud of their looks, and Bhima and Arjuna were proud of their strength and archery skills, respectively). Only the virtuous Yudhishthira, who had tried everything to prevent the carnage, and the dog remain. The dog reveals himself to be the god Yama (also known as Yama Dharmaraja) and then takes him to the underworld where he sees his siblings and wife. After explaining the nature of the test, Yama takes Yudhishthira back to heaven and explains that it was necessary to expose him to the underworld because (Rajyante narakam dhruvam) any ruler has to visit the underworld at least once. Yama then assures him that his siblings and wife would join him in heaven after they had been exposed to the underworld for measures of time according to their vices. Arjuna's grandson Parikshit rules after them and dies bitten by a snake. His furious son, Janamejaya, decides to perform a snake sacrifice (sarpasattra) to destroy the snakes. It is at this sacrifice that the tale of his ancestors is narrated to him. The reunion The Mahābhārata mentions that Karna, the Pandavas, Draupadi and Dhritarashtra's sons eventually ascended to svarga and "attained the state of the gods", and banded together – "serene and free from anger". Themes Just war The Mahābhārata offers one of the first instances of theorizing about dharmayuddha, "just war", illustrating many of the standards that would be debated later across the world. In the story, one of five brothers asks if the suffering caused by war can ever be justified. A long discussion ensues between the siblings, establishing criteria like proportionality (chariots cannot attack cavalry, only other chariots; no attacking people in distress), just means (no poisoned or barbed arrows), just cause (no attacking out of rage), and fair treatment of captives and the wounded. Translations, versions and derivative works Translations A Persian translation of Mahabharata, titled Razmnameh, was produced at Akbar's orders, by Faizi and ʽAbd al-Qadir Badayuni in the 18th century. The first complete English translation was the Victorian prose version by Kisari Mohan Ganguli, published between 1883 and 1896 (Munshiram Manoharlal Publishers) and by M. N. Dutt (Motilal Banarsidass Publishers). Most critics consider the translation by Ganguli to be faithful to the original text. The complete text of Ganguli's translation is in the public domain and is available online. An early poetry translation by Romesh Chunder Dutt and published in 1898 condenses the main themes of the Mahābhārata into English verse. A later poetic "transcreation" (author's description) of the full epic into English, done by the poet P. Lal, is complete, and in 2005 began being published by Writers Workshop, Calcutta. The P. Lal translation is a non-rhyming verse-by-verse rendering, and is the only edition in any language to include all slokas in all recensions of the work (not just those in the Critical Edition). The completion of the publishing project is scheduled for 2010. Sixteen of the eighteen volumes are now available. Dr. Pradip Bhattacharya stated that the P. Lal version is "known in academia as the ‘vulgate'". However, it has been described as "not strictly speaking a translation". A project to translate the full epic into English prose, translated by various hands, began to appear in 2005 from the Clay Sanskrit Library, published by New York University Press. The translation is based not on the Critical Edition but on the version known to the commentator Nīlakaṇṭha. Currently available are 15 volumes of the projected 32-volume edition. Indian Vedic Scholar Shripad Damodar Satwalekar translated the Critical Edition of Mahabharata into Hindi which was assigned to him by the Government of India. After his death, the task was taken up by Shrutisheel Sharma. Indian economist Bibek Debroy also wrote an unabridged English translation in ten volumes. Volume 1: Adi Parva was published in March 2010, and the last two volumes were published in December 2014. Abhinav Agarwal referred to Debroy's translation as "thoroughly enjoyable and impressively scholarly". In a review of the seventh volume, Bhattacharya stated that the translator bridged gaps in the narrative of the Critical Edition, but also noted translation errors. Gautam Chikermane of Hindustan Times wrote that where "both Debroy and Ganguli get tiresome is in the use of adjectives while describing protagonists". Another English prose translation of the full epic, based on the Critical Edition, is in progress, published by University of Chicago Press. It was initiated by Indologist J. A. B. van Buitenen (books 1–5) and, following a 20-year hiatus caused by the death of van Buitenen is being continued by several scholars. James L. Fitzgerald translated book 11 and the first half of book 12. David Gitomer is translating book 6, Gary Tubb is translating book 7, Christopher Minkowski is translating book 8, Alf Hiltebeitel is translating books 9 and 10, Fitzgerald is translating the second half of book 12, Patrick Olivelle is translating book 13, and Fred Smith is translating book 14–18. Many condensed versions, abridgments and novelistic prose retellings of the complete epic have been published in English, including works by Ramesh Menon, William Buck, R. K. Narayan, C. Rajagopalachari, K. M. Munshi, Krishna Dharma, Romesh C. Dutt, Bharadvaja Sarma, John D. Smith and Sharon Maas. Critical Edition Between 1919 and 1966, scholars at the Bhandarkar Oriental Research Institute, Pune, compared the various manuscripts of the epic from India and abroad and produced the Critical Edition of the Mahabharata, on 13,000 pages in 19 volumes, over the span of 47 years, followed by the Harivamsha in another two volumes and six index volumes. This is the text that is usually used in current Mahābhārata studies for reference. This work is sometimes called the "Pune" or "Poona" edition of the Mahabharata. Regional versions Many regional versions of the work developed over time, mostly differing only in minor details, or with verses or subsidiary stories being added. These include the Tamil street theatre, terukkuttu and kattaikkuttu, the plays of which use themes from the Tamil language versions of Mahabharata, focusing on Draupadi. Outside the Indian subcontinent, in Indonesia, a version was developed in ancient Java as Kakawin Bhāratayuddha in the 11th century under the patronage of King Dharmawangsa (990–1016) and later it spread to the neighboring island of Bali, which remains a Hindu majority island today. It has become the fertile source for Javanese literature, dance drama (wayang wong), and wayang shadow puppet performances. This Javanese version of the Mahābhārata differs slightly from the original Indian version. Another notable difference is the inclusion of the Punakawans, the clown servants of the main characters in the storyline. These characters include Semar, Petruk, Gareng, and Bagong, who are much-loved by Indonesian audiences. There are also some spin-off episodes developed in ancient Java, such as Arjunawiwaha composed in the 11th century. A Kawi version of the Mahabharata, of which eight of the eighteen parvas survive, is found on the Indonesian island of Bali. It has been translated into English by Dr. I. Gusti Putu Phalgunadi. Derivative literature Bhasa, the 2nd- or 3rd-century CE Sanskrit playwright, wrote two plays on episodes in the Marabharata, Urubhanga (Broken Thigh), about the fight between Duryodhana and Bhima, while Madhyamavyayoga (The Middle One) set around Bhima and his son, Ghatotkacha. The first important play of 20th century was Andha Yug (The Blind Epoch), by Dharamvir Bharati, which came in 1955, found in Mahabharat, both an ideal source and expression of modern predicaments and discontent. Starting with Ebrahim Alkazi, it was staged by numerous directors. V. S. Khandekar's Marathi novel, Yayati (1960), and Girish Karnad's debut play Yayati (1961) are based on the story of King Yayati found in the Mahabharat. Bengali writer and playwright, Buddhadeva Bose wrote three plays set in Mahabharat, Anamni Angana, Pratham Partha and Kalsandhya. Pratibha Ray wrote an award winning novel entitled Yajnaseni from Draupadi's perspective in 1984. Later, Chitra Banerjee Divakaruni wrote a similar novel entitled The Palace of Illusions: A Novel in 2008. Gujarati poet Chinu Modi has written long narrative poetry Bahuk based on character Bahuka. Krishna Udayasankar, a Singapore-based Indian author, has written several novels which are modern-day retellings of the epic, most notably the Aryavarta Chronicles Series. Suman Pokhrel wrote a solo play based on Ray's novel by personalizing and taking Draupadi alone in the scene. Amar Chitra Katha published a 1,260-page comic book version of the Mahabharata. In film and television In Indian cinema, several film versions of the epic have been made, dating back to 1920. The Mahābhārata was also reinterpreted by Shyam Benegal in Kalyug. Prakash Jha directed 2010 film Raajneeti was partially inspired by the Mahabharata. A 2013 animated adaptation holds the record for India's most expensive animated film. In 1988, B. R. Chopra created a television series named Mahabharat. It was directed by Ravi Chopra, and was televised on India's national television (Doordarshan). The same year as Mahabharat was being shown on Doordarshan, that same company's other television show, Bharat Ek Khoj, also directed by Shyam Benegal, showed a 2-episode abbreviation of the Mahabharata, drawing from various interpretations of the work, be they sung, danced, or staged. In the Western world, a well-known presentation of the epic is Peter Brook's nine-hour play, which premiered in Avignon in 1985, and its five-hour movie version The Mahābhārata (1989). In the late 2013 Mahabharat was televised on STAR Plus. It was produced by Swastik Productions Pvt. Uncompleted projects on the Mahābhārata include one by Rajkumar Santoshi, and a theatrical adaptation planned by Satyajit Ray. In folk culture Every year in the Garhwal region of Uttarakhand, villagers perform the Pandav Lila, a ritual re-enactment of episodes from the Mahabharata through dancing, singing, and recitation. The lila is a cultural highlight of the year and is usually performed between November and February. Folk instruments of the region, dhol, damau and two long trumpets bhankore, accompany the action. The actors, who are amateurs not pr, professionals, often break into a spontaneous dance when they are "possessed" by the spirits of their characters. Jain version Jain versions of Mahābhārata can be found in the various Jain texts like Harivamsapurana (the story of Harivamsa) Trisastisalakapurusa Caritra (Hagiography of 63 Illustrious persons), Pandavacharitra (lives of Pandavas) and Pandavapurana (stories of Pandavas). From the earlier canonical literature, Antakrddaaśāh (8th cannon) and Vrisnidasa (upangagama or secondary canon) contain the stories of Neminatha (22nd Tirthankara), Krishna and Balarama. Prof. Padmanabh Jaini notes that, unlike in the Hindu Puranas, the names Baladeva and Vasudeva are not restricted to Balarama and Krishna in Jain Puranas. Instead, they serve as names of two distinct classes of mighty brothers, who appear nine times in each half of time cycles of the Jain cosmology and rule half the earth as half-chakravartins. Jaini traces the origin of this list of brothers to the Jinacharitra by Bhadrabahu swami (4th–3rd century BCE). According to Jain cosmology Balarama, Krishna and Jarasandha are the ninth and the last set of Baladeva, Vasudeva, and Prativasudeva. The main battle is not the Mahabharata, but the fight between Krishna and Jarasandha (who is killed by Krishna as Prativasudevas are killed by Vasudevas). Ultimately, the Pandavas and Balarama take renunciation as Jain monks and are reborn in heavens, while on the other hand Krishna and Jarasandha are reborn in hell. In keeping with the law of karma, Krishna is reborn in hell for his exploits (sexual and violent) while Jarasandha for his evil ways. Prof. Jaini admits a possibility that perhaps because of his popularity, the Jain authors were keen to rehabilitate Krishna. The Jain texts predict that after his karmic term in the hell is over sometime during the next half time-cycle, Krishna will be reborn as a Jain Tirthankara and attain liberation. Krishna and Balrama are shown as contemporaries and cousins of 22nd Tirthankara, Neminatha. According to this story, Krishna arranged young Neminath's marriage with Rajemati, the daughter of Ugrasena, but Neminatha, empathizing with the animals which were to be slaughtered for the marriage feast, left the procession suddenly and renounced the world. Kuru family tree Cultural influence In the Bhagavad Gita, Krishna explains to Arjuna his duties as a warrior and prince and elaborates on different Yogic and Vedantic philosophies, with examples and analogies. This has led to the Gita often being described as a concise guide to Hindu philosophy and a practical, self-contained guide to life. In more modern times, Swami Vivekananda, Netaji Subhas Chandra Bose, Bal Gangadhar Tilak, Mahatma Gandhi and many others used the text to help inspire the Indian independence movement.Jordens, J. T. F., "Gandhi and the Bhagavadgita", in Minor, p. 88. It has also inspired several works of modern Hindi literature, such as Ramdhari Singh Dinkar's Rashmirathi, which is a rendition of Mahabharata centered around Karna and his conflicts. It was written in 1952, and won the prestigious Jnanpith Award in 1972. See also List of characters in Mahabharata Hindu texts Historicity of the Mahabharata Kali Yuga Navneet RamayanaPandavas Kauravas Explanatory notes Citations General sources Badrinath, Chaturvedi. The Mahābhārata: An Inquiry in the Human Condition, New Delhi, Orient Longman (2006) Bandyopadhyaya, Jayantanuja (2008). Class and Religion in Ancient India. Anthem Press. Bhasin, R. V. Mahabharata published by National Publications, India, 2007. J. Brockington. The Sanskrit Epics, Leiden (1998). Buitenen, Johannes Adrianus Bernardus (1978). The Mahābhārata. 3 volumes (translation / publication incomplete due to his death). University of Chicago Press. Chaitanya, Krishna (K.K. Nair). The Mahabharata, A Literary Study, Clarion Books, New Delhi 1985. Gupta, S. P. and Ramachandran, K. S. (ed.). Mahabharata: myth and reality. Agam Prakashan, New Delhi 1976. Hiltebeitel, Alf. The Ritual of Battle, Krishna in the Mahabharata, SUNY Press, New York 1990. Hopkins, E. W. The Great Epic of India, New York (1901). Jyotirmayananda, Swami. Mysticism of the Mahabharata, Yoga Research Foundation, Miami 1993. Katz, Ruth Cecily Arjuna in the Mahabharata, University of South Carolina Press, Columbia 1989. Lerner, Paule. Astrological Key in Mahabharata, David White (trans.) Motilal Banarsidass, New Delhi 1988. Mallory, J. P (2005). In Search of the Indo-Europeans. Thames & Hudson. Mehta, M. The problem of the double introduction to the Mahabharata, JAOS 93 (1973), 547–550. Minkowski, C. Z. Janamehayas Sattra and Ritual Structure, JAOS 109 (1989), 410–420. Minkowski, C. Z. 'Snakes, Sattras and the Mahabharata', in: Essays on the Mahabharata, ed. A. Sharma, Leiden (1991), 384–400. Oldenberg, Hermann. Zur Geschichte der Altindischen Prosa, Berlin (1917) Oberlies, Th. 'The Counsels of the Seer Narada: Ritual on and under the surface of the Mahabharata', in: New methods in the research of epic (ed. H. L. C. Tristram), Freiburg (1998). Oldenberg, H. Das Mahabharata, Göttingen (1922). Pāṇini. Ashtādhyāyī. Book 4. Translated by Chandra Vasu. Benares, 1896. Pargiter, F. E. Ancient Indian Historical Tradition, London 1922. Repr. Motilal Banarsidass 1997. Sukthankar, Vishnu S. and Shrimant Balasaheb Pant Pratinidhi (1933). The Mahabharata: for the first time critically edited. Bhandarkar Oriental Research Institute. Sullivan, Bruce M. Seer of the Fifth Veda, Krsna Dvaipayana Vyasa in the Mahabharata, Motilal Banarsidass, New Delhi 1999. Sutton, Nicholas. Religious Doctrines in the Mahabharata, Motilal Banarsidass, New Delhi 2000. Utgikar, N. B. "The mention of the Mahābhārata in the Ashvalayana Grhya Sutra", Proceedings and Transactions of the All-India Oriental Conference, Poona (1919), vol. 2, Poona (1922), 46–61. Vaidya, R. V. A Study of Mahabharat; A Research, Poona, A.V.G. Prakashan, 1967 Witzel, Michael, Epics, Khilas and Puranas: Continuities and Ruptures, Proceedings of the Third Dubrovnik International Conference on the Sanskrit Epics and Puranas, ed. P. Koskiallio, Zagreb (2005), 21–80. External links Sacred-Texts: Hinduism – English translation of 18 parvas of Mahabharata harivamsham - mahaabhaarat khila parva – English translation of harivamsa Parva of Mahabharata'' Sanskrit etext of the Mahābhārata online (licensed and approved by BORI) All volumes in 12 PDF files (Holybooks.com, 181 MB in total) Reading Suggestions, J. L. Fitzgerald, Das Professor of Sanskrit, Department of Classics, Brown University Critical Edition Prepared by Scholars at Bhandarkar Oriental Research Institute BORI Epic poems in Sanskrit Hindu poetry Hindu texts Kurukshetra Sanskrit texts

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https://en.wikipedia.org/wiki/Mein%20Kampf

Mein Kampf

(; My Struggle or My Battle) is a 1925 autobiographical manifesto by Nazi Party leader Adolf Hitler. The work describes the process by which Hitler became antisemitic and outlines his political ideology and future plans for Germany. Volume 1 of was published in 1925 and Volume 2 in 1926. The book was edited first by Emil Maurice, then by Hitler's deputy Rudolf Hess. Hitler began while imprisoned following his failed coup in Munich in November 1923 and a trial in February 1924 for high treason, in which he received the very light sentence of five years. Although he received many visitors initially, he soon devoted himself entirely to the book. As he continued, he realized that it would have to be a two-volume work, with the first volume scheduled for release in early 1925. The governor of Landsberg noted at the time that "he [Hitler] hopes the book will run into many editions, thus enabling him to fulfill his financial obligations and to defray the expenses incurred at the time of his trial." After slow initial sales, the book became a bestseller in Germany following Hitler's rise to power in 1933. After Hitler's death, copyright of passed to the state government of Bavaria, which refused to allow any copying or printing of the book in Germany. In 2016, following the expiration of the copyright held by the Bavarian state government, was republished in Germany for the first time since 1945, which prompted public debate and divided reactions from Jewish groups. A team of scholars from the Institute for Contemporary History in Munich published a German-language two-volume almost 2,000-page edition annotated with about 3,500 notes. This was followed in 2021 by a 1,000-page French edition based on the German annotated version, with about twice as much commentary as text. Title Hitler originally wanted to call his forthcoming book (Four and a Half Years [of Struggle] Against Lies, Stupidity and Cowardice). Max Amann, head of the Franz Eher Verlag and Hitler's publisher, is said to have suggested the much shorter ("My Struggle"). Contents The arrangement of chapters is as follows: Volume One: A Reckoning Chapter 1: In the House of My Parents Chapter 2: Years of Study and Suffering in Vienna Chapter 3: General Political Considerations Based on My Vienna Period Chapter 4: Munich Chapter 5: The World War Chapter 6: War Propaganda Chapter 7: The Revolution Chapter 8: The Beginning of My Political Activity Chapter 9: The "German Workers' Party" Chapter 10: Causes of the Collapse Chapter 11: Nation and Race Chapter 12: The First Period of Development of the National Socialist German Workers' Party Volume Two: The National Socialist Movement Chapter 1: Philosophy and Party Chapter 2: The State Chapter 3: Subjects and Citizens Chapter 4: Personality and the Conception of the State Chapter 5: Philosophy and Organization Chapter 6: The Struggle of the Early Period – the Significance of the Spoken Word Chapter 7: The Struggle with the Red Front Chapter 8: The Strong Man Is Mightiest Alone Chapter 9: Basic Ideas Regarding the Meaning and Organization of the Sturmabteilung Chapter 10: Federalism as a Mask Chapter 11: Propaganda and Organization Chapter 12: The Trade-Union Question Chapter 13: German Alliance Policy After the War Chapter 14: Eastern Orientation or Eastern Policy Chapter 15: The Right of Emergency Defense Conclusion Index Analysis In , Hitler used the main thesis of "the Jewish peril", which posits a Jewish conspiracy to gain world leadership. The narrative describes the process by which he became increasingly antisemitic and militaristic, especially during his years in Vienna. He speaks of not having met a Jew until he arrived in Vienna, and that at first his attitude was liberal and tolerant. When he first encountered the antisemitic press, he says, he dismissed it as unworthy of serious consideration. Later he accepted the same antisemitic views, which became crucial to his program of national reconstruction of Germany. has also been studied as a work on political theory. For example, Hitler announces his hatred of what he believed to be the world's two evils: Communism and Judaism. In the book Hitler blamed Germany's chief woes on the parliament of the Weimar Republic, the Jews, and Social Democrats, as well as Marxists, though he believed that Marxists, Social Democrats, and the parliament were all working for Jewish interests. He announced that he wanted to completely destroy the parliamentary system, believing it to be corrupt in principle, as those who reach power are inherent opportunists. Antisemitism While historians dispute the exact date Hitler decided to exterminate the Jewish people, few place the decision before the mid-1930s. First published in 1925, shows Hitler's personal grievances and his ambitions for creating a New Order. Hitler also wrote that The Protocols of the Elders of Zion, a fabricated text which purported to expose the Jewish plot to control the world, was an authentic document. This later became a part of the Nazi propaganda effort to justify persecution and annihilation of the Jews. The historian Ian Kershaw points out that several passages in are undeniably of a genocidal nature. Hitler wrote "the nationalization of our masses will succeed only when, aside from all the positive struggle for the soul of our people, their international poisoners are exterminated", and he suggested that, "If at the beginning of the war and during the war twelve or fifteen thousand of these Hebrew corrupters of the nation had been subjected to poison gas, such as had to be endured in the field by hundreds of thousands of our very best German workers of all classes and professions, then the sacrifice of millions at the front would not have been in vain." The racial laws to which Hitler referred resonate directly with his ideas in . In the first edition, Hitler stated that the destruction of the weak and sick is far more humane than their protection. Apart from this allusion to humane treatment, Hitler saw a purpose in destroying "the weak" in order to provide the proper space and purity for the "strong". ("living space") In the chapter "Eastern Orientation or Eastern Policy", Hitler argued that the Germans needed in the East, a "historic destiny" that would properly nurture the German people. Hitler believed that "the organization of a Russian state formation was not the result of the political abilities of the Slavs in Russia, but only a wonderful example of the state-forming efficacy of the German element in an inferior race." In Hitler openly stated the future German expansion in the East, foreshadowing Generalplan Ost: Popularity Although Hitler originally wrote mostly for the followers of National Socialism, it grew in popularity after he rose to power. (Two other books written by party members, Gottfried Feder's Breaking The Interest Slavery and Alfred Rosenberg's The Myth of the Twentieth Century, have since lapsed into comparative literary obscurity.) Hitler had made about 1.2 million Reichsmarks from the income of the book by 1933 (), when the average annual income of a teacher was about 4,800 Marks (). He accumulated a tax debt of 405,500 Reichsmark (very roughly in 2015 1.1 million GBP, 1.4 million EUR, 1.5 million USD) from the sale of about 240,000 copies before he became chancellor in 1933 (at which time his debt was waived). Hitler began to distance himself from the book after becoming chancellor of Germany in 1933. He dismissed it as "fantasies behind bars" that were little more than a series of articles for the , and later told Hans Frank that "If I had had any idea in 1924 that I would have become Reich chancellor, I never would have written the book." Nevertheless, was a bestseller in Germany during the 1930s. During Hitler's years in power, the book was in high demand in libraries and often reviewed and quoted in other publications. It was given free to every newlywed couple and every soldier fighting at the front. By 1939 it had sold 5.2 million copies in eleven languages. By the end of the war, about 10 million copies of the book had been sold or distributed in Germany. Contemporary observations , in essence, lays out the ideological program Hitler established for the German revolution, by identifying the Jews and "Bolsheviks" as racially and ideologically inferior and threatening, and "Aryans" and National Socialists as racially superior and politically progressive. Hitler's revolutionary goals included expulsion of the Jews from Greater Germany and the unification of German peoples into one Greater Germany. Hitler desired to restore German lands to their greatest historical extent, real or imagined. Due to its racist content and the historical effect of Nazism upon Europe during World War II and the Holocaust, it is considered a highly controversial book. Criticism has not come solely from opponents of Nazism. Italian Fascist dictator and Nazi ally Benito Mussolini was also critical of the book, saying that it was "a boring tome that I have never been able to read" and remarking that Hitler's beliefs, as expressed in the book, were "little more than commonplace clichés". The German journalist Konrad Heiden, an early critic of the Nazi Party, observed that the content of is essentially a political argument with other members of the Nazi Party who had appeared to be Hitler's friends, but whom he was actually denouncing in the book's content – sometimes by not even including references to them. The American literary theorist and philosopher Kenneth Burke wrote a 1939 rhetorical analysis of the work, The Rhetoric of Hitler's "Battle", which revealed an underlying message of aggressive intent. The American journalist John Gunther said in 1940 that compared to the autobiographies such as Leon Trotsky's My Life or Henry Adams's The Education of Henry Adams, was "vapid, vain, rhetorical, diffuse, prolix." However, he added that "it is a powerful and moving book, the product of great passionate feeling". He suggested that the book exhausted curious German readers, but its "ceaseless repetition of the argument, left impregnably in their minds, fecund and germinating". In March 1940, British writer George Orwell reviewed a then-recently published uncensored translation of for The New English Weekly. Orwell suggested that the force of Hitler's personality shone through the often "clumsy" writing, capturing the magnetic allure of Hitler for many Germans. In essence, Orwell notes, Hitler offers only visions of endless struggle and conflict in the creation of "a horrible brainless empire" that "stretch[es] to Afghanistan or thereabouts". He wrote, "Whereas Socialism, and even capitalism in a more grudging way, have said to people 'I offer you a good time,' Hitler has said to them, 'I offer you struggle, danger, and death,' and as a result a whole nation flings itself at his feet." Orwell's review was written in the aftermath of the 1939 Molotov–Ribbentrop Pact, when Hitler made peace with USSR after more than a decade of vitriolic rhetoric and threats between the two nations; with the pact in place, Orwell believed, England was now facing a risk of Nazi attack and the UK must not underestimate the appeal of Hitler's ideas. In his 1943 book The Menace of the Herd, Austrian scholar Erik von Kuehnelt-Leddihn described Hitler's ideas in and elsewhere as "a veritable of 'progressive' thought" and betraying "a curious lack of original thought" that shows Hitler offered no innovative or original ideas but was merely "a virtuoso of commonplaces which he may or may not repeat in the guise of a 'new discovery.'" Hitler's stated aim, Kuehnelt-Leddihn writes, is to quash individualism in furtherance of political goals: In his The Second World War, published in several volumes in the late 1940s and early 1950s, Winston Churchill wrote that he felt that after Hitler's ascension to power, no other book than deserved more intensive scrutiny. Later analysis The critic George Steiner has suggested that can be seen as one of several books that resulted from the crisis of German culture following Germany's defeat in World War I, comparable in this respect to the philosopher Ernst Bloch's The Spirit of Utopia (1918), the historian Oswald Spengler's The Decline of the West (1918), the theologian Franz Rosenzweig's The Star of Redemption (1921), the theologian Karl Barth's The Epistle to the Romans (1922), and the philosopher Martin Heidegger's Being and Time (1927). On translation A number of translators have commented on the poor quality of Hitler's use of language in writing Mein Kampf. Olivier Mannoni, who translated the 2021 French critical edition, said about the original German text that it was "An incoherent soup, one could become half-mad translating it," and said that previous translations had corrected the language, giving the false impression that Hitler was a "cultured man" with "coherent and grammatically correct reasoning". He added "To me, making this text elegant is a crime." Mannoni's comments are similar to those made by Ralph Manheim, who did the first English-language translation in 1943. Mannheim wrote in the foreword to the edition "Where Hitler's formulations challenge the reader's credulity I have quoted the German original in the notes." This evaluation of the awfulness of Hitler's prose and his inability to express his opinions coherently was shared by William S. Schlamm, who reviewed Manheim's translation in The New York Times, writing that "there was not the faintest similarity to a thought and barely a trace of language." German publication history While Hitler was in power (1933–1945), came to be available in three common editions. The first, the or People's Edition, featured the original cover on the dust jacket and was navy blue underneath with a gold swastika eagle embossed on the cover. The , or Wedding Edition, in a slipcase with the seal of the province embossed in gold onto a parchment-like cover was given free to marrying couples. In 1940, the , or Knapsack Edition, was released. This edition was a compact, but unabridged, version in a red cover and was released by the post office, available to be sent to loved ones fighting at the front. These three editions combined both volumes into the same book. A special edition was published in 1939 in honour of Hitler's 50th birthday. This edition was known as the , or Anniversary Issue. It came in both dark blue and bright red boards with a gold sword on the cover. This work contained both volumes one and two. It was considered a deluxe version, relative to the smaller and more common . The book could also be purchased as a two-volume set during Hitler's rule, and was available in soft cover and hardcover. The soft cover edition contained the original cover (as pictured at the top of this article). The hardcover edition had a leather spine with cloth-covered boards. The cover and spine contained an image of three brown oak leaves. 2016 critical edition After Hitler's death, the copyright passed to the government of Bavaria, which refused to allow it to be republished. The copyright ran out on December 31, 2015. On 3 February 2010, the Institute of Contemporary History (IfZ) in Munich announced plans to republish an annotated version of the text, for educational purposes in schools and universities, in 2015. The book had last been published in Germany in 1945. The IfZ argued that a republication was necessary to get an authoritative annotated edition by the time the copyright ran out, which might open the way for neo-Nazi groups to publish their own versions. The Bavarian Finance Ministry opposed the plan, citing respect for victims of the Holocaust. It stated that permits for reprints would not be issued, at home or abroad. This would also apply to a new annotated edition. There was disagreement about the issue of whether the republished book might be banned as Nazi propaganda. The Bavarian government emphasized that even after expiration of the copyright, "the dissemination of Nazi ideologies will remain prohibited in Germany and is punishable under the penal code". However, the Bavarian Science Minister Wolfgang Heubisch supported a critical edition, stating in 2010 that, "Once Bavaria's copyright expires, there is the danger of charlatans and neo-Nazis appropriating this infamous book for themselves". On 12 December 2013 the Bavarian government cancelled its financial support for an annotated edition. IfZ, which was preparing the translation, announced that it intended to proceed with publication after the copyright expired. The IfZ scheduled an edition of for release in 2016. Richard Verber, vice-president of the Board of Deputies of British Jews, stated in 2015 that the board trusted the academic and educational value of republishing. "We would, of course, be very wary of any attempt to glorify Hitler or to belittle the Holocaust in any way", Verber declared to The Observer. "But this is not that. I do understand how some Jewish groups could be upset and nervous, but it seems it is being done from a historical point of view and to put it in context". The annotated edition of was published in Germany in January 2016 and sold out within hours on Amazon's German site. The two-volume edition included about 3,500 notes, and was almost 2,000 pages long. The book's publication led to public debate in Germany, and divided reactions from Jewish groups, with some supporting, and others opposing, the decision to publish. German officials had previously said they would limit public access to the text amid fears that its republication could stir neo-Nazi sentiment. Some bookstores stated that they would not stock the book. Dussmann, a Berlin bookstore, stated that one copy was available on the shelves in the history section, but that it would not be advertised and more copies would be available only on order. By January 2017, the German annotated edition had sold over 85,000 copies. English translations Ever since the early 1930s, the history of Adolf Hitler's Mein Kampf in English has been complicated and has been the occasion for controversy. No fewer than four full translations were completed before 1945, as well as a number of extracts in newspapers, pamphlets, government documents and unpublished typescripts. Not all of these had official approval from his publishers, Eher Verlag. Since the war, the 1943 Ralph Manheim translation has been the most popular published translation, though other versions have continued to circulate. Current availability At the time of his suicide, Hitler's official place of residence was in Munich, which led to his entire estate, including all rights to , changing to the ownership of the state of Bavaria. The government of Bavaria, in agreement with the federal government of Germany, refused to allow any copying or printing of the book in Germany. It also opposed copying and printing in other countries, but with less success. As per German copyright law, the entire text entered the public domain on 1 January 2016, upon the expiration of the calendar year 70 years after the author's death. Owning and buying the book in Germany is not an offence. Trading in old copies is lawful as well, unless it is done in such a fashion as to "promote hatred or war." In particular, the unmodified edition is not covered by §86 StGB that forbids dissemination of means of propaganda of unconstitutional organizations, since it is a "pre-constitutional work" and as such cannot be opposed to the free and democratic basic order, according to a 1979 decision of the Federal Court of Justice of Germany. Most German libraries carry heavily commented and excerpted versions of . In 2008, Stephan Kramer, secretary-general of the Central Council of Jews in Germany, not only recommended lifting the ban, but volunteered the help of his organization in editing and annotating the text, saying that it is time for the book to be made available to all online. A variety of restrictions or special circumstances apply in other countries. France In 1934, the French government unofficially sponsored the publication of an unauthorized translation. It was meant as a warning and included a critical introduction by Marshal Lyautey ("Every Frenchman must read this book"). It was published by far-right publisher Fernand Sorlot in an agreement with the activists of LICRA who bought 5000 copies to be offered to "influential people"; however, most of them treated the book as a casual gift and did not read it. The Nazi regime unsuccessfully tried to have it forbidden. Hitler, as the author, and Eher-Verlag, his German publisher, had to sue for copyright infringement in the Commercial Court of France. Hitler's lawsuit succeeded in having all copies seized, the print broken up, and having an injunction against booksellers offering any copies. However, a large quantity of books had already been shipped and stayed available undercover by Sorlot. In 1938, Hitler licensed for France an authorized edition by Fayard, translated by François Dauture and Georges Blond, lacking the threatening tone against France of the original. The French edition was 347 pages long, while the original title was 687 pages, and it was titled ("My doctrine"). After the war, Fernand Sorlot re-edited, re-issued, and continued to sell the work, without permission from the state of Bavaria, to which the author's rights had defaulted. In the 1970s, the rise of the extreme right in France along with the growing of Holocaust denial works, placed the under judicial watch and in 1978, LICRA entered a complaint in the courts against the publisher for inciting antisemitism. Sorlot received a "substantial fine" but the court also granted him the right to continue publishing the work, provided certain warnings and qualifiers accompany the text. On 1 January 2016, seventy years after the author's death, entered the public domain in France. A new edition was published in 2017 by Fayard, now part of the Groupe Hachette, with a critical introduction, just as the edition published in 2018 in Germany by the , the Institute of Contemporary History based in Munich. In 2021, a 1,000 page critical edition, based on the German edition of 2016, was published in France. Titled Historiciser le mal: Une édition critique de Mein Kampf ("Historicizing Evil: A Critical Edition of Mein Kampf"), with almost twice as much commentary as text, it was edited by Florent Brayard and Andraes Wirsching, translated by Olivier Mannoni, and published by Fayard. The print run was deliberately kept small at 10,000 available only by special order, with copies set aside for public libraries. Proceeds from the sale of the edition are earmarked for the Auschwitz-Birkenau Foundation. Some critics who had objected in advance to the edition's publication had fewer objections upon publication. One historian noted that there were so many annotations that Hitler's text had become "secondary." India Since its first publication in India in 1928, has gone through hundreds of editions and sold over 100,000 copies. was translated into various Indian languages such as Hindi, Gujarati, Malayalam, Tamil and Bengali. Israel An extract of Mein Kampf in Hebrew was first published in 1992 by Akadamon with 400 copies. Then the complete translation of the book in Hebrew was published by the Hebrew University of Jerusalem in 1995. The translator was Dan Yaron, a Vienna-born retired teacher and Holocaust survivor. Latvia On 5 May 1995 a translation of released by a small Latvian publishing house began appearing in bookstores, provoking a reaction from Latvian authorities, who confiscated the approximately 2,000 copies that had made their way to the bookstores and charged director of the publishing house Pēteris Lauva with offences under anti-racism law. Currently the publication of is forbidden in Latvia. In April 2018 a number of Russian-language news sites (Baltnews, Zvezda, Sputnik, Komsomolskaya Pravda and Komprava among others) reported that Adolf Hitler had allegedly become more popular in Latvia than Harry Potter, referring to a Latvian online book trading platform ibook.lv, where had appeared at the No. 1 position in "The Most Current Books in 7 Days" list. In research done by Polygraph.info who called the claim "false", ibook.lv was only the 878th most popular website and 149th most popular shopping site in Latvia at the time, according to Alexa Internet. In addition to that, the website only had 4 copies on sale by individual users and no users wishing to purchase the book. Owner of ibook.lv pointed out that the book list is not based on actual deals, but rather page views, of which 70% in the case of had come from anonymous and unregistered users she believed could be fake users. Ambassador of Latvia to the Russian Federation Māris Riekstiņš responded to the story by tweeting "everyone, who wishes to know what books are actually bought and read in Latvia, are advised to address the largest book stores @JanisRoze; @valtersunrapa; @zvaigzneabc". The BBC also acknowledged the story was fake news, adding that in the last three years had been requested for borrowing for only 139 times across all libraries in Latvia, in comparison with around 25,000 requests for books about Harry Potter. Netherlands In the Netherlands was not available for sale for years following World War II. Sale has been prohibited since a court ruling in the 1980s. In September 2018, however, Dutch publisher Prometheus officially released an academic edition of the 2016 German translation with comprehensive introductions and annotations by Dutch historians. It marks the first time the book is widely available to the general public in the Netherlands since World War II. Romania On 20 April 1993, under the sponsorship of the vice-president of the Democratic Agrarian Party of Romania, Sibiu-based Pacific publishers began issuing a Romanian edition of Mein Kampf. The local authorities promptly banned the sale and confiscated the copies, citing Article 166 of the Penal Code. Nevertheless, the ban was overturned on appeal by the Prosecutor General on 27 May 1993. Chief Rabbi Moses Rosen protested, and on 10 July 1993 President Ion Iliescu asked the Prosecutor General in writing to reinstate the ban of further printing and have the book withdrawn from the market. On 8 November 1993, the Prosecutor General rebuffed Iliescu, stating that the publication of the book was an act of spreading information, not conducting fascist propaganda. Although Iliescu deplored this answer "in strictly judicial terms", this was the end of the matter. Russia In the Soviet Union, the publication "Mein Kampf" appeared one of the first in 1933, translated by Grigory Zinoviev. In the Russian Federation, has been published at least three times since 1992; the Russian text is also available on websites. In 2006 the Public Chamber of Russia proposed banning the book. In 2009 St. Petersburg's branch of the Russian Ministry of Internal Affairs requested to remove an annotated and hyper-linked Russian translation of the book from a historiography website. On 13 April 2010, it was announced that is outlawed on grounds of extremism promotion. Sweden has been reprinted several times since 1945; in 1970, 1992, 2002 and 2010. In 1992 the Government of Bavaria tried to stop the publication of the book, and the case went to the Supreme Court of Sweden which ruled in favour of the publisher, stating that the book is protected by copyright, but that the copyright holder is unidentified (and not the State of Bavaria) and that the original Swedish publisher from 1934 had gone out of business. It therefore refused the Government of Bavaria's claim. The only translation changes came in the 1970 edition, but they were only linguistic, based on a new Swedish standard. Turkey Mein Kampf (Turkish: Kavgam) was widely available and growing in popularity in Turkey, even to the point where it became a bestseller, selling up to 100,000 copies in just two months in 2005. Analysts and commentators believe the popularity of the book to be related to a rise in nationalism and anti-U.S. sentiment. of Şalom stated this was a result of "what is happening in the Middle East, the Israeli-Palestinian problem and the war in Iraq." Doğu Ergil, a political scientist at Ankara University, said both far-right ultranationalists and extremist Islamists had found common ground – "not on a common agenda for the future, but on their anxieties, fears and hate". United States In the United States, can be found at many community libraries and can be bought, sold and traded in bookshops. The U.S. government seized the copyright in September 1942 during the Second World War under the Trading with the Enemy Act and in 1979, Houghton Mifflin, the U.S. publisher of the book, bought the rights from the government pursuant to . More than 15,000 copies are sold a year. In 2016, Houghton Mifflin Harcourt reported that it was having difficulty finding a charity that would accept profits from the sales of its version of , which it had promised to donate. Online availability In 1999, the Simon Wiesenthal Center documented that the book was available in Germany via major online booksellers such as Amazon and Barnes & Noble. After a public outcry, both companies agreed to stop those sales to addresses in Germany. In March 2020 Amazon banned sales of new and second-hand copies of , and several other Nazi publications, on its platform. The book remains available on Barnes and Noble's website. It is also available in various languages, including German, at the Internet Archive. One of the first complete English translations was published by James Vincent Murphy in 1939. The Murphy translation of the book is freely available on Project Gutenberg Australia. Sequel After the party's poor showing in the 1928 elections, Hitler believed that the reason for his loss was the public's misunderstanding of his ideas. He then retired to Munich to dictate a sequel to to expand on its ideas, with more focus on foreign policy. Only two copies of the 200-page manuscript were originally made, and only one of these was ever made public. The document was neither edited nor published during the Nazi era and remains known as , or "Second Book". To keep the document strictly secret, in 1935 Hitler ordered that it be placed in a safe in an air raid shelter. It remained there until being discovered by an American officer in 1945. The authenticity of the document found in 1945 has been verified by Josef Berg, a former employee of the Nazi publishing house Eher Verlag, and Telford Taylor, a former brigadier general of the United States Army Reserve and Chief Counsel at the Nuremberg war-crimes trials. In 1958, the was found in the archives of the United States by American historian Gerhard Weinberg. Unable to find an American publisher, Weinberg turned to his mentor – Hans Rothfels at the Institute of Contemporary History in Munich, and his associate Martin Broszat – who published in 1961. A pirated edition was published in English in New York in 1962. The first authoritative English edition was not published until 2003 (Hitler's Second Book: The Unpublished Sequel to Mein Kampf, ). See also Berlin Without Jews, a dystopian satirical novel about German antisemitism, published in the same year as Mein Kampf Generalplan Ost, Hitler's "new order of ethnographical relations" Ich Kämpfe Gustave Le Bon, a main influence of this book and crowd psychology List of books banned by governments LTI – Lingua Tertii Imperii Mein Kampf in Arabic The Myth of the Twentieth Century Ukrainian military doctrine ReferencesNotesBibliography Further readingHitlerHitler, A. (1925). Mein Kampf, Band 1, Verlag Franz Eher Nachfahren, München. (Volume 1, publishing company Fritz Eher and descendants, Munich). Hitler, A. (1927). Mein Kampf, Band 2, Verlag Franz Eher Nachfahren, München. (Volume 2, after 1930 both volumes were only published in one book). Hitler, A. (1935). Zweites Buch (trans.) Hitler's Second Book: The Unpublished Sequel to Mein Kampf by Adolf Hitler. Enigma Books. . Hitler, A. (1945). My Political Testament. Wikisource Version. Hitler, A. (1945). My Private Will and Testament. Wikisource Version. Hitler, A., et al. (1971). Unmasked: two confidential interviews with Hitler in 1931. Chatto & Windus. . Hitler, A., et al. (1974). Hitler's Letters and Notes. Harper & Row. . Hitler, A., et al. (2008). Hitler's Table Talk. Enigma Books. . A. Hitler. Mein Kampf, Munich: Franz Eher Nachfolger, 1930 A. Hitler, Außenpolitische Standortbestimmung nach der Reichtagswahl Juni–Juli 1928 (1929; first published as Hitlers Zweites Buch, 1961), in Hitler: Reden, Schriften, Anordnungen, Februar 1925 bis Januar 1933, Vol IIA, with an introduction by G. L. Weinberg; G. L. Weinberg, C. Hartmann and K. A. Lankheit, eds (Munich: K. G. Saur, 1995) Christopher Browning, Initiating the Final Solution: The Fateful Months of September–October 1941, Miles Lerman Center for the Study of Jewish Resistance, U.S. Holocaust Memorial Museum (Washington, D.C.: USHMM, 2003). Gunnar Heinsohn, "What Makes the Holocaust a Uniquely Unique Genocide", Journal of Genocide Research, vol. 2, no. 3 (2000): 411–430. Eberhard Jäckel/Ellen Latzin, Mein Kampf (Adolf Hitler, 1925/26), published 11 May 2006, English version published 3 March 2020; in: Historisches Lexikon BayernsOthers External links A review of Mein Kampf by George Orwell, first published in March 1940 Hitler's Mein Kampf Seen As Self-Help Guide For India's Business Students The Huffington Post, 22 April 2009 Hitler book bestseller in Turkey, BBC News, 18 March 2005 Protest at Czech Mein Kampf, BBC News, 5 June 2000 Mein Kampf a hit on Dhaka streets, BBC News, 27 November 2009 Hitler's book stirs anger in Azerbaijan, BBC News, 10 December 2004 "Mein Kampf:" - Adolf Hitler's book , a Deutsche Welle television documentary covering the history of the book through contemporary media and interviews with experts and German citizens, narrated in English, 15 August 2019Online versions of Mein Kampf German 1936 edition (172.-173. printing) in German Fraktur script (71.4 Mb) 1943 edition (3.8 MB) German version as an audiobook, human-read (27h 17m, 741 Mb) English 1940 Mein Kampf: Operation Sea Lion Edition at archive.org Murphy translation at Gutenberg Murphy translation at greatwar.nl (pdf, txt) Complete Dugdale abridgment at archive.org 1939 Reynal and Hitchcock translation at archive.org. 1925 non-fiction books 1925 in Judaism 1926 non-fiction books Books by Adolf Hitler Censored books Censorship in the Netherlands Historical negationism Imperialist works Nazi books Nazi propaganda Political autobiographies Political manifestos Prison writings Propaganda books and pamphlets Public domain books

19645

https://en.wikipedia.org/wiki/Morpheus%20%28disambiguation%29

Morpheus (disambiguation)

Morpheus is a god associated with sleep and dreams. In Ovid's Metamorphoses he is the son of Sleep, who appears in dreams in human form. Morpheus may also refer to: Characters Morpheus (DC comics), a moniker for Dream, a fictional personification of dreams in the comic book series The Sandman Morpheus (Marvel Comics), a Marvel Comics character Morpheus (The Matrix), a character of The Matrix franchise King Morpheus, a fictional character in the Little Nemo comics Morpheus, a minor artificial intelligence character in the game Deus Ex Morpheus (Percy Jackson), a character who appears in the last book in the Percy Jackson & the Olympians series Morpheus D. Duvall, the principal antagonist of Resident Evil: Dead Aim Technology Morpheus (CPU architecture), secure CPU architecture that combines moving target defenses and churn Morpheus (software), file-sharing client/server software operated by the company StreamCast Networks Morpheus (morphing software), morphing software for Windows and Mac OS X Morpheus (1987 video game), a video game developed by Andrew Braybrook in 1987 Morpheus (1998 video game), a video game released in 1998 Project Morpheus, a NASA project to produce a vertical test bed and pre-prototype lunar lander called Morpheus Project Morpheus, the codename for PlayStation VR Morpheus (communications system) an evolution of the British Armed Forces' Bowman communications system Music Morpheus (Rebecca Clarke), a composition for viola and piano by Rebecca Helferich Clarke Morpheus (album), a music album by Canadian group Delerium Morpheus (synthesizer) produced in the mid-1990s by E-mu Systems Other "Morpheus" (Stargate SG-1), an episode of the sci-fi TV series Stargate SG-1 Morpheus (role-playing game), a tabletop role-playing game Morpheus (hotel), a hotel under construction at City of Dreams, Macau 4197 Morpheus, an asteroid See also Morfey, a Russian air defense system

19648

https://en.wikipedia.org/wiki/May%2026

May 26

Events Pre-1600 17 – Germanicus celebrates a triumph in Rome for his victories over the Cherusci, Chatti, and other German tribes west of the Elbe. 451 – Battle of Avarayr between Armenian rebels and the Sasanian Empire takes place. The Sasanids defeat the Armenians militarily but guarantee them freedom to openly practice Christianity. 946 – King Edmund I of England is murdered by a thief whom he personally attacks while celebrating St Augustine's Mass Day. 961 – King Otto I elects his six-year-old son Otto II as heir apparent and co-ruler of the East Frankish Kingdom. He is crowned at Aachen, and placed under the tutelage of his grandmother Matilda. 1135 – Alfonso VII of León and Castile is crowned in León Cathedral as Imperator totius Hispaniae (Emperor of all of Spain). 1293 – An earthquake strikes Kamakura, Kanagawa, Japan, killing about 23,000. 1328 – William of Ockham, the Franciscan Minister-General Michael of Cesena, and two other Franciscan leaders secretly leave Avignon, fearing a death sentence from Pope John XXII. 1538 – Geneva expels John Calvin and his followers from the city. Calvin lives in exile in Strasbourg for the next three years. 1573 – The Battle of Haarlemmermeer, a naval engagement in the Dutch War of Independence. 1601–1900 1637 – Pequot War: A combined English and Mohegan force under John Mason attacks a village in Connecticut, massacring approximately 500 Pequots. 1644 – Portuguese Restoration War: Portuguese and Spanish forces both claim victory in the Battle of Montijo. 1736 – The Battle of Ackia is fought near the present site of Tupelo, Mississippi. British and Chickasaw soldiers repel a French and Choctaw attack on the then-Chickasaw village of Ackia. 1783 – A Great Jubilee Day held at North Stratford, Connecticut, celebrates the end of fighting in the American Revolution. 1805 – Napoléon Bonaparte assumes the title of King of Italy and is crowned with the Iron Crown of Lombardy in Milan Cathedral, the gothic cathedral in Milan. 1821 – Establishment of the Peloponnesian Senate by the Greek rebels. 1822 – At least 113 people die in the Grue Church fire, the biggest fire disaster in Norway's history. 1857 – Dred Scott is emancipated by the Blow family, his original owners. 1864 – Montana is organized as a United States territory. 1865 – American Civil War: The Confederate General Edmund Kirby Smith, commander of the Confederate Trans-Mississippi division, is the last full general of the Confederate Army to surrender, at Galveston, Texas. 1868 – The Impeachment of Andrew Johnson ends with his acquittal by one vote. 1869 – Boston University is chartered by the Commonwealth of Massachusetts. 1879 – Russia and the United Kingdom sign the Treaty of Gandamak establishing an Afghan state. 1896 – Nicholas II becomes the last Tsar of Imperial Russia. 1896 – Charles Dow publishes the first edition of the Dow Jones Industrial Average. 1897 – Dracula, a Gothic horror novel by Irish author Bram Stoker, is published. 1897 – The original manuscript of William Bradford's history, Of Plymouth Plantation, is returned to the Governor of Massachusetts by the Bishop of London after being taken during the American Revolutionary War. 1901–present 1900 – Thousand Days' War: The Colombian Conservative Party turns the tide of war in their favor with victory against the Colombian Liberal Party in the Battle of Palonegro. 1908 – The first major commercial oil strike in the Middle East is made at Masjed Soleyman in southwest Persia. The rights to the resource were quickly acquired by the Anglo-Persian Oil Company. 1917 – Several powerful tornadoes rip through Illinois, including the city of Mattoon. 1918 – The Democratic Republic of Georgia is established. 1923 – The first 24 Hours of Le Mans is held and has since been run annually in June. 1927 – The last Ford Model T rolls off the assembly line after a production run of 15,007,003 vehicles. 1936 – In the House of Commons of Northern Ireland, Tommy Henderson begins speaking on the Appropriation bill. By the time he sits down in the early hours of the following morning, he had spoken for ten hours. 1937 – Walter Reuther and members of the United Auto Workers (UAW) clash with Ford Motor Company security guards at the River Rouge Complex complex in Dearborn, Michigan, during the Battle of the Overpass. 1938 – In the United States, the House Un-American Activities Committee begins its first session. 1940 – World War II: Operation Dynamo: In northern France, Allied forces begin a massive evacuation from Dunkirk, France. 1940 – World War II: The Siege of Calais ends with the surrender of the British and French garrison. 1942 – World War II: The Battle of Gazala takes place. 1948 – The U.S. Congress passes Public Law 80-557, which permanently establishes the Civil Air Patrol as an auxiliary of the United States Air Force. 1966 – British Guiana gains independence, becoming Guyana. 1967 – The Beatles' Sgt. Pepper's Lonely Hearts Club Band is released. 1968 – H-dagurinn in Iceland: Traffic changes from driving on the left to driving on the right overnight. 1969 – Apollo program: Apollo 10 returns to Earth after a successful eight-day test of all the components needed for the forthcoming first crewed moon landing. 1970 – The Soviet Tupolev Tu-144 becomes the first commercial transport to exceed Mach 2. 1971 – Bangladesh Liberation War: The Pakistan Army slaughters at least 71 Hindus in Burunga, Sylhet, Bangladesh. 1972 – The United States and the Soviet Union sign the Anti-Ballistic Missile Treaty. 1981 – Italian Prime Minister Arnaldo Forlani and his coalition cabinet resign following a scandal over membership of the pseudo-masonic lodge P2 (Propaganda Due). 1981 – An EA-6B Prowler crashes on the flight deck of the aircraft carrier , killing 14 crewmen and injuring 45 others. 1983 – The 7.8 Sea of Japan earthquake shakes northern Honshu with a maximum Mercalli intensity of VIII (Severe). A destructive tsunami is generated that leaves about 100 people dead. 1986 – The European Community adopts the European flag. 1991 – Zviad Gamsakhurdia becomes the first elected President of the Republic of Georgia in the post-Soviet era. 1991 – Lauda Air Flight 004 breaks apart in mid-air and crashes in the Phu Toei National Park in the Suphan Buri Province of Thailand, killing all 223 people on board. 1998 – The Supreme Court of the United States rules in New Jersey v. New York that Ellis Island, the historic gateway for millions of immigrants, is mainly in the state of New Jersey, not New York. 1998 – The first "National Sorry Day" is held in Australia. Reconciliation events are held nationally, and attended by over a million people. 1998 – A MIAT Mongolian Airlines Harbin Y-12 crashes near Erdenet, Orkhon Province, Mongolia, resulting in 28 deaths. 2002 – The tugboat Robert Y. Love collides with a support pier of Interstate 40 on the Arkansas River near Webbers Falls, Oklahoma, resulting in 14 deaths and 11 others injured. 2004 – United States Army veteran Terry Nichols is found guilty of 161 state murder charges for helping carry out the Oklahoma City bombing. 2008 – Severe flooding begins in eastern and southern China that will ultimately cause 148 deaths and force the evacuation of 1.3 million. 2021 – Ten people are killed in a shooting at a VTA rail yard in San Jose, California, United States. Births Pre-1600 1264 – Koreyasu, Japanese prince and shōgun (d. 1326) 1478 – Clement VII, pope of the Catholic Church (d. 1534) 1562 – James III, margrave of Baden-Hachberg (d. 1590) 1566 – Mehmed III, Ottoman sultan (d. 1603) 1601–1900 1602 – Philippe de Champaigne, Dutch-French painter (d. 1674) 1623 – William Petty, English economist and philosopher (d. 1687) 1650 – John Churchill, 1st Duke of Marlborough, English general and politician, Lord Lieutenant of Oxfordshire (d. 1722) 1667 – Abraham de Moivre, French-English mathematician and theorist (d. 1754) 1669 – Sébastien Vaillant, French botanist and mycologist (d. 1722) 1700 – Nicolaus Zinzendorf, German bishop and saint (d. 1760) 1750 – William Morgan, British actuary (d. 1833) 1799 – August Kopisch, German poet and painter (d. 1853) 1822 – Edmond de Goncourt, French author and critic, founded the Académie Goncourt (d. 1896) 1863 – Bob Fitzsimmons, English-New Zealand boxer (d. 1917) 1865 – Robert W. Chambers, American author and illustrator (d. 1933) 1867 – Mary of Teck, English-born queen consort of the United Kingdom (d. 1953) 1873 – Olaf Gulbransson, Norwegian painter and illustrator (d. 1958) 1876 – Percy Perrin, English cricketer (d. 1945) 1880 – W. Otto Miessner, American composer and educator (d. 1967) 1881 – Adolfo de la Huerta, Mexican politician and provisional president, 1920 (d. 1955) 1883 – Mamie Smith, American singer, actress, dancer, and pianist (d. 1946) 1886 – Al Jolson, American singer and actor (d. 1950) 1887 – Ba U, 2nd President of Burma (d. 1963) 1893 – Eugene Aynsley Goossens, English conductor and composer (d. 1962) 1895 – Dorothea Lange, American photographer and journalist (d. 1965) 1895 – Paul Lukas, Hungarian-American actor and singer (d. 1971) 1898 – Ernst Bacon, American pianist, composer, and conductor (d. 1990) 1898 – Christfried Burmeister, Estonian speed skater (d. 1965) 1899 – Antonio Barrette, Canadian lawyer and politician, 18th Premier of Quebec (d. 1968) 1899 – Muriel McQueen Fergusson, Canadian lawyer and politician, Canadian Speaker of the Senate (d. 1997) 1900 – Karin Juel, Swedish singer, actress, and writer (d. 1976) 1901–present 1904 – George Formby, English singer-songwriter and actor (d. 1961) 1904 – Necip Fazıl Kısakürek, Turkish author, poet, and playwright (d. 1983) 1904 – Vlado Perlemuter, Lithuanian-French pianist and educator (d. 2002) 1907 – Jean Bernard, French physician and haematologist (d. 2006) 1907 – John Wayne, American actor, director, and producer (d. 1979) 1908 – Robert Morley, English actor (d. 1992) 1908 – Nguyễn Ngọc Thơ, Vietnamese politician, 1st Prime Minister of the Republic of Vietnam (d. 1976) 1909 – Matt Busby, Scottish footballer and manager (d. 1994) 1909 – Adolfo López Mateos, Mexican politician, 48th President of Mexico (d. 1969) 1910 – Imi Lichtenfeld, Hungarian-Israeli martial artist, boxer, and gymnast (d. 1998) 1911 – Maurice Baquet, French actor and cellist (d. 2005) 1911 – Henry Ephron, American playwright, screenwriter, and producer (d. 1992) 1912 – János Kádár, Hungarian mechanic and politician, 46th Prime Minister of Hungary (d. 1989) 1912 – Jay Silverheels, Canadian-American actor (d. 1980) 1913 – Peter Cushing, English actor (d. 1994) 1913 – Pierre Daninos, French author (d. 2005) 1913 – Karin Ekelund, Swedish actress (d. 1976) 1913 – Josef Manger, German weightlifter (d. 1991) 1914 – Frankie Manning, American dancer and choreographer (d. 2009) 1915 – Vernon Alley, American bassist (d. 2004) 1915 – Antonia Forest, English author (d. 2003) 1916 – Henriette Roosenburg, Dutch journalist and author (d. 1972) 1919 – Rubén González, Cuban pianist (d. 2003) 1920 – Jack Cheetham, South African cricketer (d. 1980) 1920 – Peggy Lee, American singer-songwriter and actress (d. 2002) 1921 – Inge Borkh, German soprano (d. 2018) 1923 – James Arness, American actor (d. 2011) 1923 – Roy Dotrice, English actor (d. 2017) 1925 – Carmen Montejo, Cuban-Mexican actress (d. 2013) 1925 – Alec McCowen, English actor (d. 2017) 1926 – Miles Davis, American trumpet player, composer, and bandleader (d. 1991) 1927 – Jacques Bergerac, French actor and businessman (d. 2014) 1928 – Jack Kevorkian, American pathologist, author, and assisted suicide activist (d. 2011) 1929 – J. F. Ade Ajayi, Nigerian historian and academic (d. 2014) 1929 – Ernie Carroll, Australian television personality and producer 1929 – Hans Freeman, Australian bioinorganic chemist and protein crystallographer (d. 2008) 1929 – Catherine Sauvage, French singer and actress (d. 1998) 1930 – Karim Emami, Indian-Iranian lexicographer and critic (d. 2005) 1935 – Eero Loone, Estonian philosopher and academic 1936 – Natalya Gorbanevskaya, Russian-Polish poet and activist (d. 2013) 1937 – Manorama, Indian actress and singer (d. 2015) 1937 – Paul E. Patton, American politician, 59th Governor of Kentucky 1938 – William Bolcom, American pianist and composer 1938 – Lyudmila Petrushevskaya, Russian author and playwright 1938 – K. Bikram Singh, Indian director and producer (d. 2013) 1938 – Teresa Stratas, Canadian soprano and actress 1940 – Monique Gagnon-Tremblay, Canadian academic and politician, Deputy Premier of Quebec 1940 – Levon Helm, American singer-songwriter, drummer, producer, and actor (d. 2012) 1941 – Aldrich Ames, American CIA officer and criminal 1941 – Jim Dobbin, Scottish microbiologist and politician (d. 2014) 1941 – Cliff Drysdale, South African tennis player and sportscaster 1941 – Imants Kalniņš, Latvian composer 1943 – Erica Terpstra, Dutch swimmer, journalist, and politician 1944 – Phil Edmonston, American-Canadian journalist and politician 1944 – Jan Kinder, Norwegian ice hockey player (d. 2013) 1944 – Sam Posey, American race car driver and journalist 1945 – Vilasrao Deshmukh, Indian lawyer and politician, 17th Chief Minister of Maharashtra (d. 2012) 1945 – Alistair MacDuff, English lawyer and judge 1945 – Garry Peterson, Canadian-American drummer 1946 – Neshka Robeva, Bulgarian gymnast and coach 1946 – Mick Ronson, English guitarist, songwriter, and producer (d. 1993) 1947 – Carol O'Connell, American author and painter 1947 – Glenn Turner, New Zealand cricketer 1948 – Stevie Nicks, American singer-songwriter 1949 – Jeremy Corbyn, British journalist and politician 1949 – Ward Cunningham, American computer programmer, developed the first wiki 1949 – Pam Grier, American actress 1949 – Anne McGuire, Scottish educator and politician 1949 – Philip Michael Thomas, American actor 1949 – Hank Williams Jr., American singer-songwriter and guitarist 1951 – Ramón Calderón, Spanish lawyer and businessman 1951 – Lou van den Dries, Dutch mathematician 1951 – Sally Ride, American physicist and astronaut, founded Sally Ride Science (d. 2012) 1951 – Madeleine Taylor-Quinn, Irish educator and politician 1953 – Kay Hagan, American lawyer and politician (d. 2019) 1953 – Don McAllister, English footballer and manager 1953 – Michael Portillo, English journalist, politician and TV presenter 1954 – Michael Devine, Irish Republican hunger strike participant (died 1981) 1954 – Alan Hollinghurst, English novelist, poet, short story writer, and translator 1954 – Denis Lebel, Canadian businessman and politician, 29th Canadian Minister of Transport 1955 – Masaharu Morimoto, Japanese-American chef 1955 – Paul Stoddart, Australian businessman 1956 – Fiona Shackleton, English lawyer 1956 – Jyoti Gogte, Indian academician 1957 – Diomedes Díaz, Colombian singer-songwriter (d. 2013) 1957 – François Legault, Canadian businessman and politician 1957 – Roberto Ravaglia, Italian racing driver 1958 – Ronnie Black, American golfer 1958 – Arto Bryggare, Finnish hurdler and politician 1958 – Margaret Colin, American actress 1959 – Ole Bornedal, Danish actor, director, and producer 1960 – Doug Hutchison, American actor 1960 – Dean Lukin, Australian weightlifter 1960 – Masahiro Matsunaga, Japanese racing driver 1960 – Rob Murphy, American baseball player 1960 – Romas Ubartas, Lithuanian discus thrower 1961 – Steve Pate, American golfer 1961 – Tarsem Singh, Indian-American director, producer, and screenwriter 1962 – Black, English singer-songwriter (d. 2016) 1962 – Genie Francis, Canadian-American actress 1962 – Bobcat Goldthwait, American actor, director, and screenwriter 1963 – Simon Armitage, English poet, playwright and novelist 1963 – Claude Legault, Canadian actor and screenwriter 1963 – Mary Nightingale, English journalist 1963 – Jamie Spence, English golfer 1964 – Caitlín R. Kiernan, Irish-American paleontologist and author 1964 – Lenny Kravitz, American singer-songwriter, multi-instrumentalist, producer, and actor 1964 – Argiris Pedoulakis, Greek basketball player and coach 1966 – Helena Bonham Carter, English actress 1966 – Zola Budd, South African runner 1967 – Philip Treacy, Irish milliner, hat designer 1967 – Mika Yamamoto, Japanese journalist (d. 2012) 1968 – Fernando León de Aranoa, Spanish director, producer, and screenwriter 1968 – Frederik, Crown Prince of Denmark 1968 – Steve Sedgley, English footballer and manager 1969 – John Baird, Canadian politician, 10th Canadian Minister of Foreign Affairs 1969 – Siri Lindley, American triathlete and coach 1970 – Nobuhiro Watsuki, Japanese illustrator 1971 – Zaher Andary, Lebanese footballer 1971 – Matt Stone, American actor, animator, screenwriter, producer, and composer 1973 – Naomi Harris, Canadian-American photographer 1974 – Lars Frölander, Swedish swimmer 1975 – Lauryn Hill, American 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Mother's Day (Poland) National Paper Airplane Day (United States) National Sorry Day (Australia) References External links BBC: On This Day Historical Events on May 26 Today in Canadian History Days of the year May

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https://en.wikipedia.org/wiki/MVS

MVS

Multiple Virtual Storage, more commonly called MVS, was the most commonly used operating system on the System/370 and System/390 IBM mainframe computers. IBM developed MVS, along with OS/VS1 and SVS, as a successor to OS/360. It is unrelated to IBM's other mainframe operating system lines, e.g., VSE, VM, TPF. Overview First released in 1974, MVS was extended by program products with new names multiple times: first to MVS/SE (MVS/System Extensions), next to MVS/SP (MVS/System Product) Version 1, next to MVS/XA (MVS/eXtended Architecture), next to MVS/ESA (MVS/Enterprise Systems Architecture), then to OS/390 and finally to z/OS (when 64-bit support was added with the zSeries models). IBM added UNIX support (originally called OpenEdition MVS) in MVS/SP V4.3 and has obtained POSIX and UNIX™ certifications at several different levels from IEEE, X/Open and The Open Group. The MVS core remains fundamentally the same operating system. By design, programs written for MVS run on z/OS without modification. At first IBM described MVS as simply a new release of OS/VS2, but it was, in fact a major rewrite. OS/VS2 release 1 was an upgrade of OS/360 MVT that retained most of the original code and, like MVT, was mainly written in assembly language. The MVS core was almost entirely written in Assembler XF, although a few modules were written in PL/S, but not the performance-sensitive ones, in particular not the Input/Output Supervisor (IOS). IBM's use of "OS/VS2" emphasized upwards compatibility: application programs that ran under MVT did not even need recompiling to run under MVS. The same Job Control Language files could be used unchanged; utilities and other non-core facilities like TSO ran unchanged. IBM and users almost unanimously called the new system MVS from the start, and IBM continued to use the term MVS in the naming of later major versions such as MVS/XA. Evolution of MVS OS/360 MFT (Multitasking with a Fixed number of Tasks) provided multitasking: several memory partitions, each of a fixed size, were set up when the operating system was installed and when the operator redefined them. For example, there could be a small partition, two medium partitions, and a large partition. If there were two large programs ready to run, one would have to wait until the other finished and vacated the large partition. OS/360 MVT (Multitasking with a Variable number of Tasks) was an enhancement that further refined memory use. Instead of using fixed-size memory partitions, MVT allocated memory to regions for job steps as needed, provided enough contiguous physical memory was available. This was a significant advance over MFT's memory management, but had some weaknesses: if a job allocated memory dynamically (as most sort programs and database management systems do), the programmers had to estimate the job's maximum memory requirement and pre-define it for MVT. A job step that contained a mix of small and large programs wasted memory while the small programs ran. Most seriously, memory could become fragmented, i.e., the memory not used by current jobs could be divided into uselessly small chunks between the areas used by current jobs, and the only remedy was to wait until some current jobs finished before starting any new ones. In the early 1970s IBM sought to mitigate these difficulties by introducing virtual memory (which IBM called "virtual storage"), which allowed programs to request address spaces larger than physical memory. The original implementations had a single virtual address space, shared by all jobs. OS/VS1 was OS/360 MFT within a single virtual address space; OS/VS2 SVS was OS/360 MVT within a single virtual address space. So OS/VS1 and SVS in principle had the same disadvantages as MFT and MVT, but the impacts were less severe because jobs could request much larger address spaces and the requests came out of a 16 MB pool even if physical storage was smaller. In the mid-1970s IBM introduced MVS, which not only supported virtual storage that was larger than the available real storage, as did SVS, but also allowed an indefinite number of applications to run in different address spaces. Two concurrent programs might try to access the same virtual memory address, but the virtual memory system redirected these requests to different areas of physical memory. Each of these address spaces consisted of three areas: an operating system (one instance shared by all jobs), an application area unique for each application, and a shared virtual area used for various purposes, including inter-job communication. IBM promised that application areas would always be at least 8 MB. This made MVS the perfect solution for business problems that resulted from the need to run more applications. MVS maximized processing potential by providing multiprogramming and multiprocessing capabilities. Like its MVT and OS/VS2 SVS predecessors, MVS supported multiprogramming; program instructions and associated data are scheduled by a control program and given processing cycles. Unlike a single-programming operating system, these systems maximize the use of the processing potential by dividing processing cycles among the instructions associated with several different concurrently running programs. This way, the control program does not have to wait for the I/O operation to complete before proceeding. By executing the instructions for multiple programs, the computer is able to switch back and forth between active and inactive programs. Early editions of MVS (mid-1970s) were among the first of the IBM OS series to support multiprocessor configurations, though the M65MP variant of OS/360 running on 360 Models 65 and 67 had provided limited multiprocessor support. The 360 Model 67 had also hosted the multiprocessor capable TSS/360, MTS and CP-67 operating systems. Because multiprocessing systems can execute instructions simultaneously, they offer greater processing power than single-processing system. As a result, MVS was able to address the business problems brought on by the need to process large amounts of data. Multiprocessing systems are either loosely coupled, which means that each computer has access to a common workload, or tightly coupled, which means that the computers share the same real storage and are controlled by a single copy of the operating system. MVS retained both the loosely coupled multiprocessing of Attached Support Processor (ASP) and the tightly coupled multiprocessing of OS/360 Model 65 Multiprocessing. In tightly coupled systems, two CPUs shared concurrent access to the same memory (and copy of the operating system) and peripherals, providing greater processing power and a degree of graceful degradation if one CPU failed. In loosely coupled configurations each of a group of processors (single and / or tightly coupled) had its own memory and operating system but shared peripherals and the operating system component JES3 allowed managing the whole group from one console. This provided greater resilience and let operators decide which processor should run which jobs from a central job queue. MVS JES3 gave users the opportunity to network together two or more data processing systems via shared disks and Channel-to-Channel Adapters (CTCA's). This capability eventually became available to JES2 users as Multi-Access SPOOL (MAS). MVS originally supported 24-bit addressing (i.e., up to 16 MB). As the underlying hardware progressed, it supported 31-bit (XA and ESA; up to 2048 MB) and now (as z/OS) 64-bit addressing. The most significant motives for the rapid upgrade to 31-bit addressing were the growth of large transaction-processing networks, mostly controlled by CICS, which ran in a single address space—and the DB2 relational database management system needed more than 8 MB of application address space to run efficiently. (Early versions were configured into two address spaces that communicated via the shared virtual area, but this imposed a significant overhead since all such communications had transmit via the operating system.) The main user interfaces to MVS are: Job Control Language (JCL), which was originally designed for batch processing but from the 1970s onwards was also used to start and allocate resources to long-running interactive jobs such as CICS; and TSO (Time Sharing Option), the interactive time-sharing interface, which was mainly used to run development tools and a few end-user information systems. ISPF is a TSO application for users on 3270-family terminals (and later, on VM as well), which allows the user to accomplish the same tasks as TSO's command line but in a menu and form oriented manner, and with a full screen editor and file browser. TSO's basic interface is command line, although facilities were added later for form-driven interfaces. MVS took a major step forward in fault-tolerance, built on the earlier STAE facility, that IBM called software recovery. IBM decided to do this after years of practical real-world experience with MVT in the business world. System failures were now having major impacts on customer businesses, and IBM decided to take a major design jump, to assume that despite the very best software development and testing techniques, that 'problems WILL occur.' This profound assumption was pivotal in adding great percentages of fault-tolerance code to the system and likely contributed to the system's success in tolerating software and hardware failures. Statistical information is hard to come by to prove the value of these design features (how can you measure 'prevented' or 'recovered' problems?), but IBM has, in many dimensions, enhanced these fault-tolerant software recovery and rapid problem resolution features, over time. This design specified a hierarchy of error-handling programs, in system (kernel/'privileged') mode, called Functional Recovery Routines, and in user ('task' or 'problem program') mode, called "ESTAE" (Extended Specified Task Abnormal Exit routines) that were invoked in case the system detected an error (hardware processor or storage error, or software error). Each recovery routine made the 'mainline' function reinvokable, captured error diagnostic data sufficient to debug the causing problem, and either 'retried' (reinvoke the mainline) or 'percolated' (escalated error processing to the next recovery routine in the hierarchy). Thus, with each error the system captured diagnostic data, and attempted to perform a repair and keep the system up. The worst thing possible was to take down a user address space (a 'job') in the case of unrepaired errors. Though it was an initial design point, it was not until the most recent MVS version (z/OS), that recovery program was not only guaranteed its own recovery routine, but each recovery routine now has its own recovery routine. This recovery structure was embedded in the basic MVS control program, and programming facilities are available and used by application program developers and 3rd party developers. Practically, the MVS software recovery made problem debugging both easier and more difficult. Software recovery requires that programs leave 'tracks' of where they are and what they are doing, thus facilitating debugging—but the fact that processing progresses despite an error can overwrite the tracks. Early data capture at the time of the error maximizes debugging, and facilities exist for the recovery routines (task and system mode, both) to do this. IBM included additional criteria for a major software problem that required IBM service. If a mainline component failed to initiate software recovery, that was considered a valid reportable failure. Also, if a recovery routine failed to collect significant diagnostic data such that the original problem was solvable by data collected by that recovery routine, IBM standards dictated that this fault was reportable and required repair. Thus, IBM standards, when rigorously applied, encouraged continuous improvement. IBM continued to support the major serviceability tool Dynamic Support System (DSS) that it had introduced in OS/VS1 and OS/VS2 Release 1. This interactive facility could be invoked to initiate a session to create diagnostic procedures, or invoke already-stored procedures. The procedures trapped special events, such as the loading of a program, device I/O, system procedure calls, and then triggered the activation of the previously defined procedures. These procedures, which could be invoked recursively, allowed for reading and writing of data, and alteration of instruction flow. Program Event Recording hardware was used. IBM dropped support for DSS with Selectable Unit 7 (SU7), an update to OS/VS2 Release 3.7 required by the program product OS/VS2 MVS/System Extensions (MVS/SE), Program Number 5740-XEl. The User group SHARE passed a requirement that IBM reinstate DSS, and IBM provided a PTF to allow use of DSS after MVS/SE was installed. IBM again dropped support for DSS with SU64, an update to OS/VS2 Release 3.8 required by Release 2 of MVS/SE. Program-Event Recording (PER) exploitation was performed by the enhancement of the diagnostic SLIP command with the introduction of the PER support (SLIP/Per) in SU 64/65 (1978). Multiple copies of MVS (or other IBM operating systems) could share the same machine if that machine was controlled by VM/370. In this case VM/370 was the real operating system, and regarded the "guest" operating systems as applications with unusually high privileges. As a result of later hardware enhancements one instance of an operating system (either MVS, or VM with guests, or other) could also occupy a Logical Partition (LPAR) instead of an entire physical system. Multiple MVS instances can be organized and collectively administered in a structure called a systems complex or sysplex, introduced in September, 1990. Instances interoperate through a software component called a Cross-system Coupling Facility (XCF) and a hardware component called a Hardware Coupling Facility (CF or Integrated Coupling Facility, ICF, if co-located on the same mainframe hardware). Multiple sysplexes can be joined via standard network protocols such as IBM's proprietary Systems Network Architecture (SNA) or, more recently, via TCP/IP. The z/OS operating system (MVS' most recent descendant) also has native support to execute POSIX and Single UNIX Specification applications. The support began with MVS/SP V4R3, and IBM has obtained UNIX 95 certification for z/OS V1R2 and later. The system is typically used in business and banking, and applications are often written in COBOL. COBOL programs were traditionally used with transaction processing systems like IMS and CICS. For a program running in CICS, special EXEC CICS statements are inserted in the COBOL source code. A preprocessor (translator) replaces those EXEC CICS statements with the appropriate COBOL code to call CICS before the program is compiled — not altogether unlike SQL used to call DB2. Applications can also be written in other languages such as C, C++, Java, assembly language, FORTRAN, BASIC, RPG, and REXX. Language support is packaged as a common component called "Language Environment" or "LE" to allow uniform debugging, tracing, profiling, and other language independent functions. MVS systems are traditionally accessed by 3270 terminals or by PCs running 3270 emulators. However, many mainframe applications these days have custom web or GUI interfaces. The z/OS operating system has built-in support for TCP/IP. System management, done in the past with a 3270 terminal, is now done through the Hardware Management Console (HMC) and, increasingly, Web interfaces. Operator consoles are provided through 2074 emulators, so you are unlikely to see any S/390 or zSeries processor with a real 3270 connected to it. The native character encoding scheme of MVS and its peripherals is EBCDIC, but the TR instruction made it easy to translate to other 7- and 8-bit codes. Over time IBM added hardware-accelerated services to perform translation to and between larger codes, hardware-specific service for Unicode transforms and software support of, e.g., ASCII, ISO/IEC 8859, UTF-8, UTF-16, and UTF-32. The software translation services take source and destination code pages as inputs. MVS filesystem Files, other than Unix files, are properly called data sets in MVS. Names of those files are organized in catalogs that are VSAM files themselves. Data set names (DSNs, mainframe term for filenames) are organized in a hierarchy whose levels are separated with dots, e.g. "DEPT01.SYSTEM01.FILE01". Each level in the hierarchy can be up to eight characters long. The total filename length is a maximum of 44 characters including dots. By convention, the components separated by the dots are used to organize files similarly to directories in other operating systems. For example, there were utility programs that performed similar functions to those of Windows Explorer (but without the GUI and usually in batch processing mode) - adding, renaming or deleting new elements and reporting all the contents of a specified element. However, unlike in many other systems, these levels are not usually actual directories but just a naming convention (like the original Macintosh File System, where folder hierarchy was an illusion maintained by the Finder). TSO supports a default prefix for files (similar to a "current directory" concept), and RACF supports setting up access controls based on filename patterns, analogous to access controls on directories on other platforms. As with other members of the OS family, MVS' data sets were record-oriented. MVS inherited three main types from its predecessors: Sequential data sets were normally read one record at a time from beginning to end. In BDAM (direct access) data sets, the application program had to specify the physical location of the data it wanted to access (usually by specifying the offset from the start of the data set). In ISAM data sets a specified section of each record was defined as a key that could be used as a key to look up specific records. The key quite often consisted of multiple fields but these had to be contiguous and in the right order; and key values had to be unique. Hence an IBM ISAM file could have only one key, equivalent to the primary key of a relational database table; ISAM could not support foreign keys. Sequential and ISAM datasets could store either fixed-length or variable length records, and all types could occupy more than one disk volume. All of these are based on the VTOC disk structure. Early IBM database management systems used various combinations of ISAM and BDAM datasets - usually BDAM for the actual data storage and ISAM for indexes. In the early 1970s IBM's virtual memory operating systems introduced a new file management component, VSAM, which provided similar facilities: Entry-Sequenced Datasets (ESDS) provided facilities similar to those of both sequential and BDAM datasets, since they could be read either from start to finish or directly by specifying an offset from the start. Key-Sequenced Datasets (KSDS) were a major upgrade from ISAM: they allowed secondary keys with non-unique values and keys formed by concatenating non-contiguous fields in any order; they greatly reduced the performance problems caused by overflow records in ISAM; and they greatly reduced the risk that a software or hardware failure in the middle of an index update might corrupt the index. These VSAM formats became the basis of IBM's database management systems, IMS/VS and DB2 - usually ESDS for the actual data storage and KSDS for indexes. VSAM also included a catalog component used for user catalogs and MVS' master catalog. Partitioned data sets (PDS) were sequential data sets subdivided into "members" that could each be processed as sequential files in their own right (like a folder in a hierarchical file system). The most important use of PDSes was for program libraries - system administrators used the main PDS as a way to allocate disk space to a project and the project team then created and edited the members. Other uses of PDSs were libraries of frequently used job control procedures (PROCs), and "copy books" of programming language statements such as record definitions used by several programs. Generation Data Groups (GDGs) are groups of like named data sets, which can be referenced by absolute generation number, or by an offset from the most recent generation. They were originally designed to support grandfather-father-son backup procedures - if a file was modified, the changed version became the new "son", the previous "son" became the "father", the previous "father" became the "grandfather" and the previous "grandfather" was deleted. But one could set up GDGs with more than 3 generations and some applications used GDGs to collect data from several sources and feed the information to one program - each collecting program created a new generation of the file and the final program read the whole group as a single sequential file (by not specifying a generation in the JCL). Modern versions of MVS (e.g., z/OS) use datasets as containers for Unix filesystems along with facilities for partially integrating them. That is, Unix programs using fopen() can access an MVS dataset and a user can allocate a Unix file as though it were a dataset, with some restrictions. The Hierarchical File System (HFS) (not to be confused with Apple's Hierarchical File System) uses a unique type of dataset, while the newer z/OS File System (zFS) (not to be confused with Sun's ZFS) uses a VSAM Linear Data Set (LDS). Programs running on network-connected computers (such as the IBM AS/400) can use local data management interfaces to transparently create, manage, and access VSAM record-oriented files by using client-server products implemented according to Distributed Data Management Architecture (DDM). DDM is also the base architecture for the MVS DB2 server that implements Distributed Relational Database Architecture (DRDA). Upgrades to MVS In addition to new functionality that IBM added with releases and sub-releases of OS/VS2, IBM provided a number of free Incremental Change Releases (ICRs) and Selectable Units (SUs) and chargeable program products and field developed programs that IBM eventually bundled as part of z/OS. These include: ACF/TCAM (5735-RCl) ACF/VTAM (5746-RC3, 5735-RC2) Data Facility/Device Support (DF/DS), 5740-AM7 Data Facility Extended Function (DF/EF), 5740-XYQ Data Facility/Data Set Services (DF/DSS), 5740-UT3. Data Facility Sort, 5740-SM1 OS/VS2 MVS Sequential Access Method-Extended (SAM-E), 5740-AM3 MVS/370 Data Facility Product (DFP), 5665-295, replacing 5740-AM7 Data Facility Device Support (DFDS) 5740-XYQ Data Facility Extended Function (DFEF) 5740-AM3 Sequential Access Method Extended (SAM-E) 5740-AM8 Access Method Services Cryptographic Option 5748-UT2 Offline 3800 Utility MVS/XA Data Facility Product Version 1 Release 1, 5665-284 MVS/XA Data Facility Product Version 2 Release 1, 5665-XA2 MVS/ESA Data Facility Product Version 3, 5665-XA3 Data Facility Storage Management Subsystem (DFSMS), 5695-DF1Replaces DFP, DF/DSS and DF/HSM OS/VS2 MVS TSO Command Package (5740-XT6) TSO Command Processor - FDP 5798-AYF (PRINT command) TSO/VS2 Programming Control Facility - FDP 5798-BBJ TSO Programming Control Facility - II (PCF II), FDP 5798-CLW, TSO ExtensionsReplaces TSO Command Package, TSO Command Processor and PCF 5665-285 for MVS/370 5665-293 for MVS/XA 5685-025 for MVS/XAFirst version with REXX OS/VS2 MVS/System Extensions, 5740-XEl MVS/System Product JES3 Version 1 5740-XYN JES2 Version 1 5740-XYS MVS/System Product-JES2 Version 2, 5740-XC6 MVS/System Product-JES3 Version 2, 5665-291 MVS/System Product-JES2 Version 3, 5685-001 MVS/System Product-JES3 Version 3, 5685-002 MVS/ESA System Product: JES2 Version 4, 5695-047 MVS/ESA System Product: JES3 Version 4, 5695-048 MVS/ESA System Product: JES2 Version 5, 5655-068 MVS/ESA System Product: JES3 Version 5, 5655-069 Data Facility Product (DFP) In the late seventies and early eighties IBM announced: 5740-AM7 Data Facility Device Support (DF/DS) 5740-XYQ Data Facility Extended Function (DF/EF) 5740-AM3 Sequential Access Method Extended (SAM-E) 5740-AM8 Access Method Services Cryptographic Option 5748-UT2 Offline 3800 Utility DF/DS added new device support, and IBM announced that it would no longer add device support to the free base. DF/EF added the Improved Catalog Structure (ICF) as an alternative to VSAM catalogs and Control Volumes (CVOLs), but it was riddled with reliability problems. When IBM announced MVS/SP Version 2 (MVS/XA), it also announced Data Facility Product™ (DFP™) as a replacement for and upgrade to the other five products above, which it said would be withdrawn from marketing, effective December 1, 1984. DFP/370 Release 1 (program number 5665-295), announced June 7, 1983, was for MVS/SP Version 1, MVS/SE and OS/VS2 R3.8, and was optional, but MVS/Extended Architecture Data Facility Product (5665-284) was a corequisite for MVS/SP Version 2 (MVS/XA). In addition to enhancing data management facilities, DFP replaced free versions of the linkage editor and utilities. Modern MVS MVS has now evolved into z/OS; older MVS releases are no longer supported by IBM and, since 2007, only 64-bit z/OS releases are supported. z/OS supports running older 24-bit and 31-bit MVS applications alongside newer 64-bit applications. MVS releases up to 3.8j (24-bit, released in 1981) were freely available and it is now possible to run the MVS 3.8j release in mainframe emulators for free. MVS/370 MVS/370 is a generic term for all versions of the MVS operating system prior to MVS/XA. The System/370 architecture, at the time MVS was released, supported only 24-bit virtual addresses, so the MVS/370 operating system architecture is based on a 24-bit address. Because of this 24-bit address length, programs running under MVS/370 are each given 16 MB of contiguous virtual storage. MVS/XA MVS/XA, or Multiple Virtual Storage/Extended Architecture, was a version of MVS that supported the 370-XA architecture, which had a new I/O architecture and also expanded addresses from 24 bits to 31 bits, providing a 2 gigabyte addressable memory area. MVS/XA supported a 24-bit legacy addressing mode for older 24-bit applications (i.e. those that stored a 24-bit address in the lower 24 bits of a 32-bit word and utilized the upper 8 bits of that word for other purposes). MVS/ESA MVS/ESA: MVS Enterprise System Architecture. Versions of MVS, introduced as MVS/SP Version 3 in February 1988, then MVS/ESA SP Version 4 and MVS/ESA SP Version 5. Replaced by as OS/390 late 1995 and subsequently by z/OS. MVS/ESA OpenEdition: upgrade to Version 4 Release 3 of MVS/ESA announced February 1993 with support for POSIX and other standards. While the initial release only had National Institute of Standards and Technology (NIST) certification for Federal Information Processing Standard (FIPS) 151 compliance, subsequent releases were certified at higher levels and by other organizations, e.g. X/Open and its successor, The Open Group. It included about 1 million new lines of code, which provide an API shell, utilities, and an extended user interface. Works with a hierarchical file system provided by DFSMS (Data Facility System Managed Storage). The shell and utilities are based on Mortice Kerns' InterOpen products. Independent specialists estimate that it was over 80% open systems-compliant—more than most Unix systems. DCE2 support announced February 1994, and many application development tools in March 1995. From mid 1995, as all of the open features became a standard part of vanilla MVS/ESA SP Version 5 Release 1, IBM stopped distinguishing OpenEdition from the operating system. Under OS/390 V2R6 it became UNIX System Services, and has kept that name under z/OS. OS/390 In late 1995 IBM bundled MVS with several program products and changed the name from MVS/ESA to OS/390. z/OS The current level of MVS is marketed as z/OS. Closely related operating systems Japanese mainframe manufacturers Fujitsu and Hitachi both repeatedly and illegally obtained IBM's MVS source code and internal documentation in one of the 20th century's most famous cases of industrial espionage. Fujitsu relied heavily on IBM's code in its MSP mainframe operating system, and likewise Hitachi did the same for its VOS3 operating system. MSP and VOS3 were heavily marketed in Japan, where they still hold a substantial share of the mainframe installed base, but also to some degree in other countries, notably Australia. Even IBM's bugs and documentation misspellings were faithfully copied. IBM cooperated with the U.S. Federal Bureau of Investigation in a sting operation, reluctantly supplying Fujitsu and Hitachi with proprietary MVS and mainframe hardware technologies during the course of multi-year investigations culminating in the early 1980s—investigations which implicated senior company managers and even some Japanese government officials. Amdahl, however, was not involved in Fujitsu's theft of IBM's intellectual property. Any communications from Amdahl to Fujitsu were through "Amdahl Only Specifications" which were scrupulously cleansed of any IBM IP or any references to IBM's IP. Subsequent to the investigations, IBM reached multimillion-dollar settlements with both Fujitsu and Hitachi, collecting substantial fractions of both companies' profits for many years. Reliable reports indicate that the settlements exceeded US$500,000,000. The three companies have long since amicably agreed to many joint business ventures. For example, in 2000 IBM and Hitachi collaborated on developing the IBM z900 mainframe model. Because of this historical copying, MSP and VOS3 are properly classified as "forks" of MVS, and many third-party software vendors with MVS-compatible products were able to produce MSP- and VOS3-compatible versions with little or no modification. When IBM introduced its 64-bit z/Architecture mainframes in the year 2000, IBM also introduced the 64-bit z/OS operating system, the direct successor to OS/390 and MVS. Fujitsu and Hitachi opted not to license IBM's z/Architecture for their quasi-MVS operating systems and hardware systems, and so MSP and VOS3, while still nominally supported by their vendors, maintain most of MVS's 1980s architectural limitations to the present day. Since z/OS still supports MVS-era applications and technologies— z/OS still contains most of MVS's code, albeit greatly enhanced and improved over decades of evolution—applications (and operational procedures) running on MSP and VOS3 can move to z/OS much more easily than to other operating systems. See also Hercules a S/370, S/390, and zSeries emulator capable of running MVS Utility programs supplied with MVS (and successor) operating systems BatchPipes is a batch job processing utility designed for the MVS/ESA operating system, and all later incarnations—OS/390 and z/OS. Notes References Bob DuCharme: "The Operating Systems Handbook, Part 06: MVS" (available online here) External links IBM: z/OS V1R11.0 MVS Manuals IBM: z/OS V1R8.0 MVS manuals MVS: the operating system that keeps the world going MVS... a long history Functional structure of IBM virtual storage operating systems Part II: OS/VS2-2 concepts and philosophies by A. L. Scherr IBM mainframe operating systems 1974 software

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https://en.wikipedia.org/wiki/Monoid

Monoid

In abstract algebra, a branch of mathematics, a monoid is a set equipped with an associative binary operation and an identity element. Monoids are semigroups with identity. Such algebraic structures occur in several branches of mathematics. For example, the functions from a set into itself form a monoid with respect to function composition. More generally, in category theory, the morphisms of an object to itself form a monoid, and, conversely, a monoid may be viewed as a category with a single object. In computer science and computer programming, the set of strings built from a given set of characters is a free monoid. Transition monoids and syntactic monoids are used in describing finite-state machines. Trace monoids and history monoids provide a foundation for process calculi and concurrent computing. In theoretical computer science, the study of monoids is fundamental for automata theory (Krohn–Rhodes theory), and formal language theory (star height problem). See semigroup for the history of the subject, and some other general properties of monoids. Definition A set S equipped with a binary operation , which we will denote •, is a monoid if it satisfies the following two axioms: Associativity For all a, b and c in S, the equation holds. Identity element There exists an element e in S such that for every element a in S, the equations and hold. In other words, a monoid is a semigroup with an identity element. It can also be thought of as a magma with associativity and identity. The identity element of a monoid is unique. For this reason the identity is regarded as a constant, i. e. 0-ary (or nullary) operation. The monoid therefore is characterized by specification of the triple (S, • , e). Depending on the context, the symbol for the binary operation may be omitted, so that the operation is denoted by juxtaposition; for example, the monoid axioms may be written and . This notation does not imply that it is numbers being multiplied. A monoid in which each element has an inverse is a group. Monoid structures Submonoids A submonoid of a monoid is a subset N of M that is closed under the monoid operation and contains the identity element e of M. Symbolically, N is a submonoid of M if , whenever , and . In this case, N is a monoid under the binary operation inherited from M. On the other hand, if N is subset of a monoid that is closed under the monoid operation, and is a monoid for this inherited operation, then N is not always a submonoid, since the identity elements may differ. For example, the singleton set is closed under multiplication, and is not a submonoid of the (multiplicative) monoid of the nonnegative integers. Generators A subset S of M is said to generate M if the smallest submonoid of M containing S is M. If there is a finite set that generates M, then M is said to be a finitely generated monoid. Commutative monoid A monoid whose operation is commutative is called a commutative monoid (or, less commonly, an abelian monoid). Commutative monoids are often written additively. Any commutative monoid is endowed with its algebraic preordering , defined by if there exists z such that . An order-unit of a commutative monoid M is an element u of M such that for any element x of M, there exists v in the set generated by u such that . This is often used in case M is the positive cone of a partially ordered abelian group G, in which case we say that u is an order-unit of G. Partially commutative monoid A monoid for which the operation is commutative for some, but not all elements is a trace monoid; trace monoids commonly occur in the theory of concurrent computation. Examples Out of the 16 possible binary Boolean operators, each of the four that has a two-sided identity is also commutative and associative and thus makes the set {False, True} a commutative monoid. Under the standard definitions, AND and XNOR have the identity True while XOR and OR have the identity False. The monoids from AND and OR are also idempotent while those from XOR and XNOR are not. The set of natural numbers is a commutative monoid under addition (identity element 0) or multiplication (identity element 1). A submonoid of under addition is called a numerical monoid. The set of positive integers is a commutative monoid under multiplication (identity element 1). Given a set , the set of subsets of is a commutative monoid under intersection (identity element is itself). Given a set , the set of subsets of is a commutative monoid under union (identity element is the empty set). Generalizing the previous example, every bounded semilattice is an idempotent commutative monoid. In particular, any bounded lattice can be endowed with both a meet- and a join- monoid structure. The identity elements are the lattice's top and its bottom, respectively. Being lattices, Heyting algebras and Boolean algebras are endowed with these monoid structures. Every singleton set closed under a binary operation • forms the trivial (one-element) monoid, which is also the trivial group. Every group is a monoid and every abelian group a commutative monoid. Any semigroup may be turned into a monoid simply by adjoining an element not in and defining for all . This conversion of any semigroup to the monoid is done by the free functor between the category of semigroups and the category of monoids. Thus, an idempotent monoid (sometimes known as find-first) may be formed by adjoining an identity element to the left zero semigroup over a set . The opposite monoid (sometimes called find-last) is formed from the right zero semigroup over . Adjoin an identity to the left-zero semigroup with two elements . Then the resulting idempotent monoid models the lexicographical order of a sequence given the orders of its elements, with e representing equality. The underlying set of any ring, with addition or multiplication as the operation. (By definition, a ring has a multiplicative identity 1.) The integers, rational numbers, real numbers or complex numbers, with addition or multiplication as operation. The set of all by matrices over a given ring, with matrix addition or matrix multiplication as the operation. The set of all finite strings over some fixed alphabet forms a monoid with string concatenation as the operation. The empty string serves as the identity element. This monoid is denoted and is called the free monoid over . It is not commutative. Given any monoid , the opposite monoid has the same carrier set and identity element as , and its operation is defined by . Any commutative monoid is the opposite monoid of itself. Given two sets and endowed with monoid structure (or, in general, any finite number of monoids, , their cartesian product is also a monoid (respectively, ). The associative operation and the identity element are defined pairwise. Fix a monoid . The set of all functions from a given set to is also a monoid. The identity element is a constant function mapping any value to the identity of ; the associative operation is defined pointwise. Fix a monoid with the operation and identity element , and consider its power set consisting of all subsets of . A binary operation for such subsets can be defined by . This turns into a monoid with identity element . In the same way the power set of a group is a monoid under the product of group subsets. Let be a set. The set of all functions forms a monoid under function composition. The identity is just the identity function. It is also called the full transformation monoid of . If is finite with elements, the monoid of functions on is finite with elements. Generalizing the previous example, let be a category and an object of . The set of all endomorphisms of , denoted , forms a monoid under composition of morphisms. For more on the relationship between category theory and monoids see below. The set of homeomorphism classes of compact surfaces with the connected sum. Its unit element is the class of the ordinary 2-sphere. Furthermore, if denotes the class of the torus, and b denotes the class of the projective plane, then every element c of the monoid has a unique expression the form where is a positive integer and , or . We have . Let be a cyclic monoid of order , that is, . Then for some . In fact, each such gives a distinct monoid of order , and every cyclic monoid is isomorphic to one of these.Moreover, can be considered as a function on the points given by or, equivalently Multiplication of elements in is then given by function composition. When then the function is a permutation of and gives the unique cyclic group of order . Properties The monoid axioms imply that the identity element is unique: If and are identity elements of a monoid, then . Products and powers For each nonnegative integer , one can define the product of any sequence of elements of a monoid recursively: let and let for . As a special case, one can define nonnegative integer powers of an element of a monoid: and for . Then for all . Invertible elements An element is called invertible if there exists an element such that and . The element is called the inverse of . Inverses, if they exist, are unique: If and are inverses of , then by associativity . If is invertible, say with inverse , then one can define negative powers of by setting for each ; this makes the equation hold for all . The set of all invertible elements in a monoid, together with the operation •, forms a group. Grothendieck group Not every monoid sits inside a group. For instance, it is perfectly possible to have a monoid in which two elements and exist such that holds even though is not the identity element. Such a monoid cannot be embedded in a group, because in the group multiplying both sides with the inverse of would get that , which is not true. A monoid has the cancellation property (or is cancellative) if for all , and in , the equality implies , and the equality implies . A commutative monoid with the cancellation property can always be embedded in a group via the Grothendieck group construction. That is how the additive group of the integers (a group with operation +) is constructed from the additive monoid of natural numbers (a commutative monoid with operation + and cancellation property). However, a non-commutative cancellative monoid need not be embeddable in a group. If a monoid has the cancellation property and is finite, then it is in fact a group. The right- and left-cancellative elements of a monoid each in turn form a submonoid (i.e. are closed under the operation and obviously include the identity). This means that the cancellative elements of any commutative monoid can be extended to a group. The cancellative property in a monoid is not necessary to perform the Grothendieck construction – commutativity is sufficient. However, if a commutative monoid does not have the cancellation property, the homomorphism of the monoid into its Grothendieck group is not injective. More precisely, if , then and have the same image in the Grothendieck group, even if . In particular, if the monoid has an absorbing element, then its Grothendieck group is the trivial group. Types of monoids An inverse monoid is a monoid where for every a in M, there exists a unique a−1 in M such that and . If an inverse monoid is cancellative, then it is a group. In the opposite direction, a zerosumfree monoid is an additively written monoid in which implies that and : equivalently, that no element other than zero has an additive inverse. Acts and operator monoids Let M be a monoid, with the binary operation denoted by • and the identity element denoted by e. Then a (left) M-act (or left act over M) is a set X together with an operation which is compatible with the monoid structure as follows: for all x in X: ; for all a, b in M and x in X: . This is the analogue in monoid theory of a (left) group action. Right M-acts are defined in a similar way. A monoid with an act is also known as an operator monoid. Important examples include transition systems of semiautomata. A transformation semigroup can be made into an operator monoid by adjoining the identity transformation. Monoid homomorphisms A homomorphism between two monoids and is a function such that for all x, y in M , where eM and eN are the identities on M and N respectively. Monoid homomorphisms are sometimes simply called monoid morphisms. Not every semigroup homomorphism between monoids is a monoid homomorphism, since it may not map the identity to the identity of the target monoid, even though the identity is the identity of the image of homomorphism. For example, consider , the set of residue classes modulo equipped with multiplication. In particular, the class of is the identity. Function given by is a semigroup homomorphism as in . However, , so a monoid homomorphism is a semigroup homomorphism between monoids that maps the identity of the first monoid to the identity of the second monoid and the latter condition cannot be omitted. In contrast, a semigroup homomorphism between groups is always a group homomorphism, as it necessarily preserves the identity (because, in a group, the identity is the only element such that ). A bijective monoid homomorphism is called a monoid isomorphism. Two monoids are said to be isomorphic if there is a monoid isomorphism between them. Equational presentation Monoids may be given a presentation, much in the same way that groups can be specified by means of a group presentation. One does this by specifying a set of generators Σ, and a set of relations on the free monoid Σ∗. One does this by extending (finite) binary relations on Σ∗ to monoid congruences, and then constructing the quotient monoid, as above. Given a binary relation , one defines its symmetric closure as . This can be extended to a symmetric relation by defining if and only if and for some strings with . Finally, one takes the reflexive and transitive closure of E, which is then a monoid congruence. In the typical situation, the relation R is simply given as a set of equations, so that . Thus, for example, is the equational presentation for the bicyclic monoid, and is the plactic monoid of degree 2 (it has infinite order). Elements of this plactic monoid may be written as for integers i, j, k, as the relations show that ba commutes with both a and b. Relation to category theory Monoids can be viewed as a special class of categories. Indeed, the axioms required of a monoid operation are exactly those required of morphism composition when restricted to the set of all morphisms whose source and target is a given object. That is, A monoid is, essentially, the same thing as a category with a single object. More precisely, given a monoid , one can construct a small category with only one object and whose morphisms are the elements of M. The composition of morphisms is given by the monoid operation •. Likewise, monoid homomorphisms are just functors between single object categories. So this construction gives an equivalence between the category of (small) monoids Mon and a full subcategory of the category of (small) categories Cat. Similarly, the category of groups is equivalent to another full subcategory of Cat. In this sense, category theory can be thought of as an extension of the concept of a monoid. Many definitions and theorems about monoids can be generalised to small categories with more than one object. For example, a quotient of a category with one object is just a quotient monoid. Monoids, just like other algebraic structures, also form their own category, Mon, whose objects are monoids and whose morphisms are monoid homomorphisms. There is also a notion of monoid object which is an abstract definition of what is a monoid in a category. A monoid object in Set is just a monoid. Monoids in computer science In computer science, many abstract data types can be endowed with a monoid structure. In a common pattern, a sequence of elements of a monoid is "folded" or "accumulated" to produce a final value. For instance, many iterative algorithms need to update some kind of "running total" at each iteration; this pattern may be elegantly expressed by a monoid operation. Alternatively, the associativity of monoid operations ensures that the operation can be parallelized by employing a prefix sum or similar algorithm, in order to utilize multiple cores or processors efficiently. Given a sequence of values of type M with identity element and associative operation , the fold operation is defined as follows: In addition, any data structure can be 'folded' in a similar way, given a serialization of its elements. For instance, the result of "folding" a binary tree might differ depending on pre-order vs. post-order tree traversal. MapReduce An application of monoids in computer science is the so-called MapReduce programming model (see Encoding Map-Reduce As A Monoid With Left Folding). MapReduce, in computing, consists of two or three operations. Given a dataset, "Map" consists of mapping arbitrary data to elements of a specific monoid. "Reduce" consists of folding those elements, so that in the end we produce just one element. For example, if we have a multiset, in a program it is represented as a map from elements to their numbers. Elements are called keys in this case. The number of distinct keys may be too big, and in this case, the multiset is being sharded. To finalize reduction properly, the "Shuffling" stage regroups the data among the nodes. If we do not need this step, the whole Map/Reduce consists of mapping and reducing; both operations are parallelizable, the former due to its element-wise nature, the latter due to associativity of the monoid. Complete monoids A complete monoid is a commutative monoid equipped with an infinitary sum operation for any index set such that and . An ordered commutative monoid is a commutative monoid together with a partial ordering such that for every , and implies for all . A continuous monoid is an ordered commutative monoid in which every directed subset has a least upper bound, and these least upper bounds are compatible with the monoid operation: for every and directed subset of . If is a continuous monoid, then for any index set and collection of elements , one can define and together with this infinitary sum operation is a complete monoid. See also Green's relations Monad (functional programming) Semiring and Kleene algebra Star height problem Vedic square Notes References External links Algebraic structures Category theory Semigroup theory