Boxing legend Cassius Clay joins the Nation of Islam and changes his name to "Muhammad Ali", calling his former title a "slave name"
- Constantine succeeds Paul I as king of Greece
- Tom O'Hara runs world record mile (3:56.4)
- Madonna Wayne Gacy [Stephen Bier Jr.], American musician (Marilyn Manson band), born in Fort Lauderdale, Florida
- Reniet Vrieze, rock singer/guitarist (Pilgrims-White Men)
- Edward Van Sloan, American actor (Frankenstein, Dracula), dies at 81
- King Paul I, King of Greece (1947-64), dies at 62