1307 - Külüg Khan enthroned as Khagan of the Mongols and Wuzong of the Yuan.
1582 - The Incident at Honnō-ji takes place in Kyoto, Japan.
1621 - Execution of 27 Czech noblemen on the Old Town Square in Prague as a consequence of the Battle of White Mountain.
1734 - In Montreal in New France, a slave known by the French name of Marie-Joseph Angélique is put to death, having been convicted of the arson that destroyed much of the city.
1749 - Halifax, Nova Scotia, is founded.
1768 - James Otis, Jr. offends the King and parliament in a speech to the Massachusetts General Court.
1788 - New Hampshire ratifies the Constitution of the United States and is admitted as the 9th state in the United States.
1798 - Irish Rebellion of 1798: The British Army defeats Irish rebels at the Battle of Vinegar Hill.
1813 - Peninsular War: Battle of Vitoria.
1813 - Laura Secord sets out to warn British forces of an impending U.S. attack on Queenston, Ontario during the War of 1812.
1824 - Greek War of Independence: Egyptian forces capture Psara in the Aegean Sea.
1826 - Maniots defeat Egyptians under Ibrahim Pasha in the Battle of Vergas.
1854 - First Victoria Cross won during bombardment of Bomarsund in the Aland Islands.
1864 - New Zealand Land Wars: The Tauranga Campaign ends.
1877 - The Molly Maguires, ten Irish immigrants, are hanged at the Schuylkill County and Carbon County, Pennsylvania prisons.
1898 - The United States captures Guam from Spain
1915 - The U.S. Supreme Court hands down its decision in Guinn v. United States 238 US 347 1915, striking down an Oklahoma law denying the right to vote to some citizens.
1919 - The Royal Canadian Mounted Police fire a volley into a crowd of unemployed war veterans, killing two, during the Winnipeg General Strike.
1919 - Admiral Ludwig von Reuter scuttles the German fleet in Scapa Flow, Orkney. The nine sailors killed are the last casualties of World War I.
1940 - The first successful west-to-east navigation of Northwest Passage begins at Vancouver, British Columbia.
1942 - World War II: Tobruk falls to Italian and German forces.
1942 - World War II: A Japanese submarine surfaces near the Columbia River in Oregon, firing 17 shells at nearby Fort Stevens in one of only a handful of attacks by the Japanese against the United States mainland.
1945 - World War II: The Battle of Okinawa ends.
1948 - Columbia Records introduces the long-playing record album in a public demonstration at the Waldorf-Astoria Hotel in New York City.
1952 - Philippine School of Commerce, through a republic act, is converted to Philippine College of Commerce; later to be the Polytechnic University of the Philippines.
1957 - Ellen Louks Fairclough is sworn in as Canada's first woman Cabinet Minister.
1964 - Three civil rights workers, Andrew Goodman, James Chaney and Mickey Schwerner, are murdered in Neshoba County, Mississippi, United States, by members of the Ku Klux Klan.
1973 - In handing down the decision in Miller v. California 413 US 15, the Supreme Court of the United States establishes the Miller Test, which now governs obscenity in U.S. law.
1982 - John Hinckley is found not guilty by reason of insanity for the attempted assassination of U.S. President Ronald Reagan.
1999 - Tun Dr. Mahathir Mohamad starts his work in Perdana Putra, Putrajaya.
2000 - Section 28 (outlawing the 'promotion' of homosexuality in the United Kingdom) is repealed in Scotland with a 99 to 17 vote.
2001 - A federal grand jury in Alexandria, Virginia, indicts 13 Saudis and a Lebanese in the 1996 bombing of the Khobar Towers in Saudi Arabia that killed 19 American servicemen.
2004 - SpaceShipOne becomes the first privately funded spaceplane to achieve spaceflight.
2006 - Pluto's newly discovered moons are officially named Nix & Hydra.