original: Since then, documentation of saffron's use over the span of 4,000 years in the treatment of some 90 illnesses has been uncovered.
simplifications: Documentation of saffron's use over the span of 4,000 years in the treatment of some 90 illnesses has been found. Since then, Saffron has been documented in the treatment of about 90 illnesses in the length of 4,000 years. Documented use of saffron for around 4,000 years to treat some 90 illnesses has been found. Documentation of saffron's use over 4,000 years shows the treatment of some 90 illnesses. Since then, documentation has been found of saffron's use in treating around 90 illnesses over 4,000 years. Since then, we have seen proof of saffron treating some 90 illnesses over 4,000 years. Papers regarding the use of saffron to treat 90 sicknesses over the last 4,000 years have been found. Since then, documentation of saffron's medical uses over thousands of years has been discovered. The use of Saffron in the treatment of some 90 illnesses over the span of 4,000 years has been uncovered and documented. Since then, documents of the use of saffron over the course of 4,000 years in the treatment of some 90 diseases has been uncovered.