original: In 1967, he became chairman of the SPD fraction in the Landtag, and in 1970 Minister of Science and Education in the cabinet of Minister President Heinz Kühn.
simplifications: He was chairman of the Landtag SPD faction in 1967, and Minister of Science and Education President Heinz Kühns cabinet in 1970. In 1967, he became chairman of the SPD in the Landtag. And in 1970 Minister of Science and Education. In 1967 he became chairman of the SPD and in 1970, Minister of Science and Education in Minister Kühn's cabinet. He advanced to chairman of the SPD fraction in the Landtag in 1967. He took the position of Minister of Science and Education in 1970. He belonged to Minister President Heinz Kühn's cabinet. In 1967, he became chairman of the SPD fraction in the Landtag. In 1970, he became Minister of Science and Education in the cabinet of Minister President Heinz Kühn. He was chairman of the SPD fraction in the Landtag in 1967, Minister of Science and Education in Minister President Heinz Kühn cabinet in 1970. In 1967, he became chairman of the SPD fraction in the Landtag. In 1970, he became the Minister of Science and Education. He became chairman of the SPD fraction in the Landtag in 1967. In 1970, he became Minister of Science and Education for Minister President Heinz Kühn. He became chairman of the SDP part in the Landtag in 1967, then Minister of Science and Education under Minister President Heinz Kuhn in 1970. In 1967 he had become chairman of the SPD Group in the Landtag, and in 1970 he was Minister of Science and Education in the cabinet of Minister President Heinz Kühn.