This Day in History: 1899-04-11
Percy Lavon Julian, PhD, research chemist and a pioneer in the chemical synthesis of medicinal drugs from plants, is born. Dr. Julian was the first to synthesize the natural product physostigmine and was a pioneer in the industrial large-scale chemical synthesis of the human hormones progesterone and testosterone from plant sterols such as stigmasterol and sitosterol. His work laid the foundation for the steroid drug industry’s production of cortisone, other corticosteroids, and birth control pills. He later started his own company to synthesize steroid intermediates from the wild Mexican yam. His work helped greatly reduce the cost of steroid intermediates to large multinational pharmaceutical companies, helping to significantly expand the use of several important drugs. Julian received more than 130 chemical patents. He was the first African-American chemist inducted into the National Academy of Sciences, and the second African-American scientist inducted (after David Blackwell) from any field. Learn more.