Magellan reaches the Pacific, William Shakespeare gets hitched, the Grand Ole Opry debuts, Olympic gymnast Nadia Comaneci defects, and Jeffrey Dahmer is killed in prison, all on this day.
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U.S. Army photo
1942: A fire in the Cocoanut Grove nightclub in Boston, Mass., kills 492 people, making it the deadliest nightclub fire in U.S. history.