The Fourth Crusade sacks Constantinople.
The British navy wins a major naval engagement against the colonists in the American Revolution at the Battle of Saints, off Dominica.
Confederate Gen. Nathan Bedford Forrest captures Fort Pillow, in Tennessee.
The British Cabinet comes out in favor of voting rights for women.
Dr. Jonas Salk's discovery of a polio vaccine is announced.
Soviet Yuri Alexeyevich Gagarin becomes first man to orbit the Earth.
Police use dogs and cattle prods on peaceful civil rights demonstrators in Birmingham, Alabama.