1783 - George Washington proclaims end of hostilities
1861 - President Lincoln orders blockade of Southern ports from SC to Texas
1917 - Naval Armed Guard crew on board SS Mongolia engage and damage a German U-boat. This was the first engagement of U.S. naval personnel against the enemy in World War I.
1955 - USS Albany and USS William Wood begin to provide disaster relief to citizens of Volos, Greece, ending 21 April
(Source: Navy News Service)