Today in history, German-born Frederick I, Barbarossa, is crowned emperor of Rome in 1155.
Today in history, The Dutch fleet sails up the Thames River and threatens London in 1667.
Today in history, British troops evacuate Philadelphia in 1778.
Today in history, The War of 1812 begins when the United States declares war against Great Britain in 1812.
Today in history, At the Battle of Waterloo (see picture below), Napoleon Bonaparte is defeated by an international army under the Duke of Wellington in 1815.
Today in history, Allied forces on the Western Front begin their largest counterattack yet against the German army in 1918.
Today in history, Amelia Earhart (see picture below) becomes the first woman to cross the Atlantic by airplane in 1928.
Today in history, Sally Ride becomes the first American woman in space in 1983.