1734 – In Montreal, New France, a slave known by the French name of Marie-Joseph Angélique is put to death, having been convicted of setting the fire that destroyed much of the city.
1898 – The United States captures Guam from Spain. The few warning shots fired by the U.S. naval vessels are misinterpreted as salutes by the Spanish garrison, which was unaware that the two nations were at war.[4]
1900 – Boxer Rebellion: China formally declares war on the United States, Britain, Germany, France and Japan, as an edict issued from the Empress Dowager Cixi.
1942 – World War II: Tobruk falls to Italian and German forces; 33,000 Allied troops are taken prisoner.[8]
1942 – World War II: A Japanese submarine surfaces near the Columbia River in Oregon, firing 17 shells at Fort Stevens in one of only a handful of attacks by Japan against the United States mainland.
1945 – World War II: The Battle of Okinawa ends when the organized resistance of Imperial Japanese Army forces collapses in the Mabuni area on the southern tip of the main island.
2005 – Edgar Ray Killen, who had previously been unsuccessfully tried for the murders of James Chaney, Andrew Goodman, and Mickey Schwerner, is convicted of manslaughter 41 years afterwards (the case had been reopened in 2004).
2006 – Pluto's newly discovered moons are officially named Nix and Hydra.
2012 – A boat carrying more than 200 migrants capsizes in the Indian Ocean between the Indonesian island of Java and Christmas Island, killing 17 people and leaving 70 others missing.
^Charlton, Linda (June 22, 1970). "Penn Central Is Granted Authority to Reorganize Under Bankruptcy Laws". The New York Times. pp. 1, 74. Retrieved June 21, 2020; Markham, Jerry W. (2002). A Financial History of the United States. Volume 3: From the Age of Derivatives into the New Millennium (1970-2001). Armonk, N.Y.: M.E. Sharpe. p. 5. ISBN9780765607300.
^Sharp, Jane A. (2000). "Natalia Goncharova". In Bowlt, John E.; Drutt, Matthew (eds.). Amazons of the avant-garde: Alexandra Exter, Natalia Goncharova, Liubov Popova, Olga Rozanova, Varvara Stepanova, and Nadezhda Udaltsova. New York: Guggenheim Museum. p. 155. ISBN0-8109-6924-6.
^MacLaury, Bruce K. (1997). "Robert V. Roosa (21 June 1918-23 December 1993)". Proceedings of the American Philosophical Society. 141 (2): 227–229. JSTOR987305.
^Rall, Maureen (2002). Petticoat Pioneers: The History of the Pioneer Women who Lived on the Diamond Fields in the Early Years. Kimberley, South Africa: Kimberley Africana Library. p. 117. ISBN978-0-62027-613-9.