User:Hawkeye7/War/Selected anniversaries/June 20

June 20

 * 451 - According to some sources, this was the date of the Battle of Chalons: Flavius Aetius' victory over Attila the Hun.
 * 1685 - Monmouth Rebellion: The Duke of Monmouth declares himself King of England at Bridgwater.
 * 1756 - British garrison imprisoned in the Black Hole of Calcutta.
 * 1963 - The Moscow–Washington hotline was established between Soviet Union and United States following the Cuban Missile Crisis.