Wallace H. Carothers, an American chemist, inventor and the leader of organic chemistry at DuPont Corporation, receives a patent for a silk substitute fabric called nylon. Carothers was a depressive who for years carried a cyanide capsule on a watch chain in case he wanted to commit suicide, but his genius helped produce other polymers such as neoprene and polyester. He eventually did take cyanide—not in pill form, but dissolved in lemon juice—resulting in his death in late 1937.