Complex sentence: In September 1966, Ley took a leave of absence from his position to become director of the Bureau of Medicine of the Food and Drug Administration and on July 1,1968 he was appointed Commissioner of the Food and Drug Administration by President Lyndon B. Johnson.
Split into simpler sentences: In September 1966, Ley took a leave of absence from his position to become director of the Bureau of Medicine of the Food and Drug Administration. On July 1,1968 he was appointed Commissioner of the Food and Drug Administration by President Lyndon B. Johnson.