| 1155 | | German-born Frederick I, Barbarossa, is crowned emperor of Rome. |
| 1667 | | The Dutch fleet sails up the Thames River and threatens London. |
| 1778 | | British troops evacuate Philadelphia. |
| 1812 | | The War of 1812 begins when the United States declares war against Great Britain. |
| 1815 | | At the Battle of Waterloo, Napoleon is defeated by an international army under the Duke of Wellington. |
| 1863 | | After repeated acts of insubordination, General Ulysses S. Grant relieves General John McClernand during the siege of Vicksburg. |
| 1864 | | At Petersburg, Union General Ulysses S. Grant realizes the town can no longer be taken by assault and settles into a siege. |
| 1873 | | Susan B. Anthony is fined $100 for attempting to vote for president. |
| 1918 | | Allied forces on the Western Front begin their largest counter-attack yet against the German army. |
| 1928 | | Amelia Earhart becomes the first woman to cross the Atlantic by airplane. |
| 1936 | | Mobster Charles 'Lucky' Luciano is found guilty on 62 counts of compulsory prostitution. |
| 1942 | | The U.S. Navy commissions its first black officer, Harvard University medical student Bernard Whitfield Robinson. |
| 1944 | | The U.S. First Army breaks through the German lines on the Cotentin Peninsula and cuts off the German-held port of Cherbourg. |
| 1945 | | Organized Japanese resistance ends on the island of Mindanao. |
| 1951 | | General Vo Nguyen Giap ends his Red River Campaign against the French in Indochina. |
| 1953 | | South Korean President Syngman Rhee releases Korean non-repatriate POWs against the will of the United Nations. |
| 1959 | | A Federal Court annuls the Arkansas law allowing school closings to prevent integration. |
| 1966 | | Samuel Nabrit becomes the first African American to serve on the Atomic Energy Commission. |
| 1979 | | President Jimmy Carter and Leonid Brezhnev sign the Salt II pact to limit nuclear arms. |
| 1983 | | Sally Ride becomes the first American woman in space. |
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