Gregory PincusDied 22 Aug 1967 at age 64 (born 9 Apr 1903).Gregory (Goodwin) Pincus was an American endocrinologist whose work on the antifertility properties of steroids led to the development of the first effective oral contraceptive: the birth-control pill. In 1934, Pincus made national headlines by achieving in-vitro fertilization of rabbits. The public was not ready for the vision of test-tube babies; instead of fame, he received notoriety. Consequently, he moved a small independent laboratory. There he did applied research, especially on steroids. In 1953, he was approached about developing a new form of contraception. He focussed on using progesterone as an effective anti-ovulent, and showed it could be a good contraceptive drug. In 1960, a synthetic progesterone drug was approved for contraceptive use.