| | 524 - Godomar, King of the Burgundians defeats the Franks at the Battle of Vezerone. |
| | 1621 - an execution of 27 Czech lords on the Old Town Square in Prague as a consequence of the battle on the "White Mountain". |
| | 1665 - First soldiers of Le Régiment de Carignan-Salières arrive at Quebec to invade Iroquois territories. |
| | 1734 - In Montreal in New France (today primarily Quebec), a black slave known by the French name of Marie-Joseph Angélique, having been convicted of the arson that destroyed much of the city, was tortured and hanged by the French authorities in a public ceremony that involved her disgrace and the amputation of a hand. |
| | 1749 - Halifax, Nova Scotia, founded. |
| | 1788 - New Hampshire ratifies the Constitution and is thus admitted as the 9th state in the United States. |
| | 1798 - Irish Rebellion of 1798: The British Army defeats Irish rebels at 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 - Maori Wars: The Tauranga Campaign ends. |
| | 1877 - The Molly Maguires, ten Irish immigrants who were labor activists, are hanged in the Carbon County, Pennsylvania Prison. |
| | 1887 - Queen Victoria's golden jubilee. |
| | 1898 - Guam becomes a U.S. territory. |
| | 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 - 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 were the last casualties of the First World War. |
| | 1940 - World War II: France surrenders to Germany. |
| | 1940 - First successful west-to-east navigation of Northwest Passage begins at Vancouver, British Columbia. |
| | 1942 - World War II: Tobruk falls to 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 U.S. mainland. |
| | 1945 - World War II: Battle of Okinawa ends. |
| | 1957 - Ellen Louks Fairclough sworn in as Canada's first woman Cabinet Minister |
| | 1963 - Giovanni Battista Enrico Antonio Maria Montini is elected Pope Paul VI by the College of Cardinals. |
| | 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. |
| | 1989 - The U.S. Supreme Court rules in Texas v. Johnson that flag burning is protected speech under the United States Constitution. |
| | 2000 - Section 28 (outlawing the 'promotion' of homosexuality in the UK) repealed in Scotland with a 99 to 17 vote. |
| | 2002 - The World Health Organization declares Europe polio free. |
| | 2003 - Deputy Justice Fazel Ahmed Manawi of the Afghan Supreme Court announces that Aftab editor Sayed Madawi and his deputy Ali Payam Sestani will be tried for "libeling Islam." |
| | 2004 - SpaceShipOne becomes the first privately funded spaceplane to achieve spaceflight. |
| | 2005 - Donald Tsang Yam Kuen is appointed by the People's Republic of China to take over from Tung Chee Hwa as the Chief Executive of the Hong Kong Special Administrative Region. |
| | 2006 - Pluto's newly discovered moons are officially christened Nix & Hydra on this date. |