1740 - Maria Theresa became the ruler of Austria, Hungary and Bohemia with the death of her father, Holy Roman Emperor Charles VI.
1818 - The U.S. and Great Britain established the boundary between the U.S. and Canada to be the 49th parallel.
1827 - The Battle of Navarino took place during the Greek War for Independence.
1873 - A Hippodrome was opened in New York City by showman Phineus T. (P.T.) Barnum.
1942 - Pierre Laval told the French that they must serve in Germany.
1944 - Allied forces invaded the Philippines.
1944 - During World War II, the Yugoslav cities of Belgrade and Dubrovnik were liberated.
1995 - Britain, France and the U.S. announced a treaty that banned atomic blasts in the South Pacific.