1099 - Jerusalem fell to the Crusaders.
1410 - Poles and Lithuanians defeated the Teutonic knights at Tannenburg, Prussia.
1685 - The Duke of Monmouth was executed in Tower Hill in England, after his army was defeated at Sedgemore.
1788 - Louis XVI jailed 12 deputies who protested new judicial reforms.
1789 - The electors of Paris set up a "Commune" to live without the authority of the government.
1813 - Napoleon Bonaparte's representatives met with the Allies in Prague to discuss peace terms.
1918 - The Second Battle of the Marne began during World War I.
1940 - Robert Wadlow died at the age of 22. At that time he was 8 feet, 11-1/10 inches tall and weighed 439 pounds.
1965 - The spacecraft Mariner IV sent back the first close-up pictures of the planet Mars.