1076Pope Gregory VII excommunicates Holy Roman Emperor Henry IV (for the 1st time)
1797The Battle of Cape St Vincent: British fleet under Admiral Sir John Jervis defeats larger Spanish fleet under Admiral Don José de Córdoba y Ramos near Cape St. Vincent, Portugal. Captain Horatio Nelson distinguishes himself.
1929St Valentine's Day Massacre in Chicago, 7 gangsters killed, allegedly on Al Capone's orders