Source: HistoryNet.com
0254: St. Stephen I begins his reign as Catholic Pope.
1641: The chief advisor to Charles I, Thomas Wentworth, is beheaded in the Tower of London
1865: The last land battle of the Civil war occurs at Palmito Ranch, Texas. It is a Confederate victory.
1881: Tunisia becomes a French protectorate.
1885: In the Battle of Batoche, French Canadians rebel against the Canadian government.
1926: The Airship Norge becomes the first vessel to fly over the North Pole.
1932: The body of Charles Lindbergh's baby is found.
1935: Alcoholics Anonymous is founded in Akron, Ohio by "Bill W.," a stockbroker, and "Dr. Bob S.," a heart surgeon.
1942: The Soviet Army launches its first major offensive of the war, taking Kharkov in the eastern Ukraine.
1943: Axis forces in North Africa surrender.
1949: The Berlin Blockade ends.
1969: Viet Cong sappers try unsuccessfully to overrun Landing Zone Snoopy in Vietnam.
1975: The U.S. merchant ship Mayaguez is seized by Cambodian forces.