TIL on the evening of July 16, 1962, President John F. Kennedy joked he wanted to smoke cannabis; so his mistress later brought him six joints to the White House. After three joints he felt no effects, but then closed his eyes and refused a fourth. "Suppose the Russians did something now," he said.
TIL Arnold Reuben, the man who invented the Reuben sandwich, is also the inventor of the New York style cheesecake.
TIL the "Sex Raft" was a 1973 experiment in which five men and six women of various religions, nationalities and social backgrounds drifted across the Atlantic on a raft for 101 days in order to study sexual and physical aggression. It produced little in the way of worthwhile scientific results
TIL two students in a school performance of Sweeney Todd had their throats cut because the school supplied an actual straight razor for the throat slitting scene.