April 20th

1775 - Siege of Boston

1861 - War for Southron Independence: Robert E. Lee resigns his commission in the Army of these united States to command the forces of the state of Virginia.

1961 - Bay of Pigs.

1972 - Apollo 16 lands on the Moon.

1979 - Jimmy Carter flees from a rabbit.

1999 - Largest bombing of Kosovo by the United States in the Kosovo War.

WP