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This Day On History
| Date | Description | Type |
|---|---|---|
| 12th of August 1099 | EVENT | First Crusade: Battle of Ascalon Crusaders under the command of Godfrey of Bouillon defeat Fatimid forces led by Al-Afdal Shahanshah. This is considered the last engagement of the First Crusade. |
| 12th of August 1121 | EVENT | Battle of Didgori: the Georgian army under King David the Builder wins a decisive victory over the famous Seljuk commander Ilghazi. |
| 12th of August 1164 | EVENT | Battle of Harim: Nur ad-Din Zangi defeats the Crusader armies of the County of Tripoli and the Principality of Antioch. |
| 12th of August 1281 | EVENT | The Mongolian fleet of Kublai Khan is destroyed by a typhoon while approaching Japan. |
| 12th of August 1323 | EVENT | Signature of the Treaty of Noteborg between Sweden and Novgorod (Russia), that regulates the border between the two countries for the first time. |
| 12th of August 1332 | EVENT | Wars of Scottish Independence: Battle of Dupplin Moor : Scots under Domhnall II, Earl of Mar are routed by Edward Balliol. |
| 12th of August 1480 | EVENT | Battle of Otranto: Ottoman troops behead 800 Christians for refusing to convert to Islam. |
| 12th of August 1499 | EVENT | First engagement of the Battle of Zonchio between Venetian and Ottoman fleets. |
| 12th of August 1624 | EVENT | The president of Louis XIII of France's royal council is arrested, leaving Cardinal Richelieu in the role of the King's principal minister. |
| 12th of August 1676 | EVENT | Praying Indian John Alderman shoots and kills Metacomet, the Wampanoag war chief, ending King Philip's War. |
| 12th of August 1687 | EVENT | Battle of Mohacs: Charles of Lorraine defeats the Ottomans. |
| 12th of August 1793 | EVENT | The Rhone and Loire (Lere) departments are created when the former departement of Rhone-et-Loire is split into two. |
| 12th of August 1806 | EVENT | Santiago de Liniers re-takes the city of Buenos Aires after the first British invasion. |
| 12th of August 1851 | EVENT | Isaac Singer is granted a patent for his sewing machine. |
| 12th of August 1877 | EVENT | Asaph Hall discovers the Mars moon Deimos. |
| 12th of August 1883 | EVENT | The last quagga dies at the Artis Magistra zoo in Amsterdam. |
| 12th of August 1898 | EVENT | An Armistice ends the Spanish-American War. |
| 12th of August 1898 | EVENT | The Hawaiian flag is lowered from Iolani Palace in an elaborate annexation ceremony and replaced with the flag of the United States to signify the transfer of sovereignty from the Republic of Hawai`i to the United States. |
| 12th of August 1914 | EVENT | World War I: the United Kingdom declares war on Austria-Hungary; the countries of the British Empire follow suit. |
| 12th of August 1943 | EVENT | Alleged date of the first Philadelphia Experiment test on United States Navy ship USS Eldridge. |
| 12th of August 1944 | EVENT | Waffen SS troops massacre 560 people in Sant'Anna di Stazzema. |
| 12th of August 1944 | EVENT | Alencon is liberated by General Leclerc, the first city in France to be liberated from the Nazis by French forces. |
| 12th of August 1952 | EVENT | The Night of the Murdered Poets: 13 prominent Jewish intellectuals are murdered in Moscow. |
| 12th of August 1953 | EVENT | The islands of Zakynthos and Kefalonia in Greece are severely damaged by an earthquake measuring 7.3 on the Richter scale. |
| 12th of August 1953 | EVENT | Nuclear weapons testing: the Soviet atomic bomb project continues with the detonation of Joe 4, the first Soviet thermonuclear weapon. |
| 12th of August 1960 | EVENT | Echo 1A, NASA's first successful communications satellite, is launched. |
| 12th of August 1964 | EVENT | Charlie Wilson, one of the Great Train Robbers, escapes from Winson Green Prison in Birmingham, England. |
| 12th of August 1964 | EVENT | South Africa is banned from the Olympic Games due to the country's racist policies. |
| 12th of August 1969 | EVENT | Violence erupts after the Apprentice Boys of Derry march in Derry, Northern Ireland, resulting in a three-day communal riot known as the Battle of the Bogside. |
| 12th of August 1976 | EVENT | Between 1,000 and 3,500 Palestinians are killed in the Tel al-Zaatar massacre, one of the bloodiest events of the Lebanese Civil War |
| 12th of August 1977 | EVENT | The first free flight of the Space Shuttle Enterprise. |
| 12th of August 1977 | EVENT | The Sri Lankan riots of 1977, targeting the minority Sri Lankan Tamil people, begin, less than a month after the United National Party came to power. Over 300 Tamils are killed. |
| 12th of August 1978 | EVENT | The Treaty of Peace and Friendship between Japan and the People's Republic of China is signed. |
| 12th of August 1980 | EVENT | The Montevideo Treaty, establishing the Latin American Integration Association, is signed. |
| 12th of August 1981 | EVENT | The IBM Personal Computer is released. |
| 12th of August 1982 | EVENT | Mexico announces it is unable to pay its enormous external debt, marking the beginning of a debt crisis that spreads to all of Latin America and the Third World. |
| 12th of August 1985 | EVENT | Japan Airlines Flight 123 crashes into Osutaka ridge in Gunma Prefecture, Japan, killing 520, to become the worst single-plane air disaster. |
| 12th of August 1992 | EVENT | Canada, Mexico and the United States announce completion of negotiations for the North American Free Trade Agreement (NAFTA). |
| 12th of August 1994 | EVENT | Major League Baseball players go on strike. This will force the cancellation of the 1994 World Series. |
| 12th of August 2000 | EVENT | The Oscar class submarine K-141 Kursk of the Russian Navy explodes and sinks in the Barents Sea during a military exercise. |
| 12th of August 2005 | EVENT | Sri Lanka's foreign minister, Lakshman Kadirgamar, is fatally shot by an LTTE sniper at his home. |
| 12th of August 2007 | EVENT | The bulk carrier M/V New Flame collides with the oil tanker Torm Gertrud at the southernmost tip of Gibraltar, ending up partially submerged. |
| 12th of August 1503 | BIRTHDAY | King Christian III of Denmark and Norway (d. 1559) |
| 12th of August 1566 | BIRTHDAY | Infanta Isabella Clara Eugenia of Spain (d. 1633) |
| 12th of August 1604 | BIRTHDAY | Tokugawa Iemitsu, Japanese shogun (d. 1651) |
| 12th of August 1629 | BIRTHDAY | Tsar Alexei I of Russia (d. 1676) |
| 12th of August 1644 | BIRTHDAY | Heinrich Ignaz Franz Biber, Bohemian composer (d. 1704) |
| 12th of August 1647 | BIRTHDAY | Johann Heinrich Acker, German writer (d. 1719) |
| 12th of August 1686 | BIRTHDAY | John Balguy, English philosopher (d. 1748) |
| 12th of August 1696 | BIRTHDAY | Maurice Greene, English composer (d. 1755) |
| 12th of August 1720 | BIRTHDAY | Konrad Ekhof, German actor (d. 1778) |
| 12th of August 1762 | BIRTHDAY | King George IV of the United Kingdom (d. 1830) |
| 12th of August 1774 | BIRTHDAY | Robert Southey, English poet and biographer (d. 1843) |
| 12th of August 1831 | BIRTHDAY | H. P. Blavatsky, Russian theosophist (d. 1891) |
| 12th of August 1856 | BIRTHDAY | Diamond Jim Brady, American financier (d. 1917) |
| 12th of August 1859 | BIRTHDAY | Katharine Lee Bates, American poet (d. 1929) |
| 12th of August 1860 | BIRTHDAY | Klara Hitler, Austrian mother of dictator Adolf Hitler (d. 1907) |
| 12th of August 1866 | BIRTHDAY | Jacinto Benavente, Spanish writer, Nobel laureate (d. 1954) |
| 12th of August 1867 | BIRTHDAY | Edith Hamilton, German-born American classicist (d. 1963) |
| 12th of August 1872 | BIRTHDAY | Princess Marie Louise of Schleswig-Holstein (d. 1956) |
| 12th of August 1876 | BIRTHDAY | Mary Roberts Rinehart, American mystery writer (d. 1958) |
| 12th of August 1880 | BIRTHDAY | Radclyffe Hall, British poet, novelist and LGBT activist (d. 1943) |
| 12th of August 1880 | BIRTHDAY | Christy Mathewson, American baseball player (d. 1925) |
| 12th of August 1881 | BIRTHDAY | Cecil B. DeMille, American film director (d. 1959) |
| 12th of August 1883 | BIRTHDAY | Martha Hedman, Swedish-American actress (d. 1974) |
| 12th of August 1883 | BIRTHDAY | Pauline Frederick, American actress (d. 1938) |
| 12th of August 1883 | BIRTHDAY | Marion Lorne, American actress (d. 1968) |
| 12th of August 1885 | BIRTHDAY | Jean Cabannes, French physicist (d. 1959) |
| 12th of August 1886 | BIRTHDAY | Sir Keith Murdoch, Australian journalist and newspaper owner (d. 1952) |
| 12th of August 1887 | BIRTHDAY | Erwin Schrodinger, Austrian physicist, Nobel laureate (d. 1961) |
| 12th of August 1889 | BIRTHDAY | Zerna Sharp, American writer and educator (Dick and Jane) (d. 1981) |
| 12th of August 1891 | BIRTHDAY | C. E. M. Joad, English philosopher and broadcaster (d. 1953) |
| 12th of August 1892 | BIRTHDAY | Alfred Lunt, American actor (d. 1977) |
| 12th of August 1897 | BIRTHDAY | Maurice Fernandes, Guyanese West Indies cricketer (d. 1981) |
| 12th of August 1899 | BIRTHDAY | Ben Sealey, Trinidadian West Indies cricketer (d. 1963) |
| 12th of August 1902 | BIRTHDAY | Mohammad Hatta, first Vice President of Indonesia (d. 1980) |
| 12th of August 1904 | BIRTHDAY | Tsarevich Alexei Nikolaevich of Russia, only son of Emperor Nicholas II of Russia (d. 1918) |
| 12th of August 1906 | BIRTHDAY | Tedd Pierce, American animator (d. 1972) |
| 12th of August 1906 | BIRTHDAY | Harry Hopman, Australian tennis player and coach (d. 1985) |
| 12th of August 1907 | BIRTHDAY | Joe Besser, American actor and comedian (d. 1988) |
| 12th of August 1907 | BIRTHDAY | Benjamin Henry Sheares, second President of Singapore (d. 1981) |
| 12th of August 1910 | BIRTHDAY | Jane Wyatt, American actress (d. 2006) |
| 12th of August 1910 | BIRTHDAY | Yusof bin Ishak, first President of Singapore (d. 1970) |
| 12th of August 1911 | BIRTHDAY | Cantinflas, Mexican actor (d. 1993) |
| 12th of August 1912 | BIRTHDAY | Samuel Fuller, American film director (d. 1997) |
| 12th of August 1913 | BIRTHDAY | Richard Bare, American director |
| 12th of August 1914 | BIRTHDAY | Gerd Buchdahl, German philosopher (d. 2001) |
| 12th of August 1914 | BIRTHDAY | Ruth Lowe, Canadian pianist and composer (I'll Never Smile Again) (d. 1981) |
| 12th of August 1915 | BIRTHDAY | Michael Kidd, American choreographer (d. 2007) |
| 12th of August 1918 | BIRTHDAY | Guy Gibson, British aviator, Victoria Cross recipient (d. 1944) |
| 12th of August 1919 | BIRTHDAY | Vikram Sarabhai, Indian physicist (d. 1971) |
| 12th of August 1923 | BIRTHDAY | John Holt, Jamaican West Indies cricketer (d. 1997) |
| 12th of August 1924 | BIRTHDAY | Derek Shackleton, English cricketer (d. 2007) |
| 12th of August 1924 | BIRTHDAY | Muhammad Zia-ul-Haq, 6th President of Pakistan (d. 1988) |
| 12th of August 1925 | BIRTHDAY | Norris McWhirter, Scottish co-founder of the Guinness Book of Records (d. 2004) |
| 12th of August 1925 | BIRTHDAY | Dale Bumpers, American politician |
| 12th of August 1925 | BIRTHDAY | Ross McWhirter, Scottish co-founder of the Guinness Book of Records (d. 1975) |
| 12th of August 1925 | BIRTHDAY | George Wetherill, American physicist (d. 2006) |
| 12th of August 1926 | BIRTHDAY | John Derek, American actor (d. 1998) |
| 12th of August 1926 | BIRTHDAY | Wallace Markfield, American writer (d. 2002) |
| 12th of August 1926 | BIRTHDAY | Joe Jones, American R&B singer (d. 2005) |
| 12th of August 1927 | BIRTHDAY | Porter Wagoner, American singer (d. 2007) |
| 12th of August 1928 | BIRTHDAY | Charles Blackman, Australian artist |
| 12th of August 1928 | BIRTHDAY | Bob Buhl, American baseball player (d. 2001) |
| 12th of August 1928 | BIRTHDAY | Dan Curtis, American film and television producer and director (d.2006) |
| 12th of August 1929 | BIRTHDAY | Buck Owens, American singer (d. 2006) |
| 12th of August 1930 | BIRTHDAY | Jacques Tits, Belgian mathematician |
| 12th of August 1930 | BIRTHDAY | George Soros Hungarian-born American financier and political activist |
| 12th of August 1931 | BIRTHDAY | William Goldman, American screenwriter |
| 12th of August 1932 | BIRTHDAY | Charlie O'Donnell, American game show announcer (d. 2010) |
| 12th of August 1932 | BIRTHDAY | Sirikit, Queen consort of Thailand, wife of Bhumibol Adulyadej (Rama IX) |
| 12th of August 1932 | BIRTHDAY | Dallin H. Oaks, American The Church of Jesus Christ of Latter-day Saints apostle and former Utah Supreme Court Justice |
| 12th of August 1933 | BIRTHDAY | Parnelli Jones, American race car driver and team owner |
| 12th of August 1935 | BIRTHDAY | John Cazale, American actor (d. 1978) |
| 12th of August 1937 | BIRTHDAY | Walter Dean Myers, American novelist and poet |
| 12th of August 1938 | BIRTHDAY | Jean-Paul L'Allier, Canadian politician, 38th Mayor of Quebec |
| 12th of August 1939 | BIRTHDAY | Skip Caray, American TV and radio baseball announcer (Atlanta Braves) (d. 2008) |
| 12th of August 1939 | BIRTHDAY | George Hamilton, American actor |
| 12th of August 1939 | BIRTHDAY | Roy Romanow, Canadian politician |
| 12th of August 1939 | BIRTHDAY | Michael D. Antonovich, American politician |
| 12th of August 1940 | BIRTHDAY | Eddie Barlow, South African cricketer (d. 2005) |
| 12th of August 1941 | BIRTHDAY | Rejean Ducharme, Canadian novelist and playwright |
| 12th of August 1942 | BIRTHDAY | Hans-Wilhelm Muller-Wohlfahrt, German physician |
| 12th of August 1943 | BIRTHDAY | Deborah Walley, American actress (d. 2001) |
| 12th of August 1944 | BIRTHDAY | Peter Hofmann, German tenor |
| 12th of August 1945 | BIRTHDAY | Ron Mael, American keyboardist (Sparks) |
| 12th of August 1946 | BIRTHDAY | Terry Nutkins, British TV presenter |
| 12th of August 1947 | BIRTHDAY | Sam Rosen, American sportscaster |
| 12th of August 1949 | BIRTHDAY | Panagiotis Chinofotis, Greek politician |
| 12th of August 1949 | BIRTHDAY | Rick Ridgeway, American mountaineer |
| 12th of August 1949 | BIRTHDAY | Mark Knopfler, British singer-songwriter and guitarist (Dire Straits) |
| 12th of August 1950 | BIRTHDAY | Jim Beaver, American actor and writer |
| 12th of August 1951 | BIRTHDAY | Willie Horton, American murderer and rapist |
| 12th of August 1952 | BIRTHDAY | Chen Kaige, Chinese film director |
| 12th of August 1954 | BIRTHDAY | Sam J. Jones, American actor |
| 12th of August 1954 | BIRTHDAY | Pat Metheny, American guitarist |
| 12th of August 1955 | BIRTHDAY | Ann M. Martin, American children's writer |
| 12th of August 1955 | BIRTHDAY | Terry Taylor, American professional wrestler |
| 12th of August 1956 | BIRTHDAY | Sidath Wettimuny, Sri Lankan cricketer |
| 12th of August 1956 | BIRTHDAY | Bruce Greenwood, Canadian actor |
| 12th of August 1957 | BIRTHDAY | Friedhelm Schutte, German footballer |
| 12th of August 1958 | BIRTHDAY | Jurgen Dehmel, German bass player and songwriter (Nena) |
| 12th of August 1959 | BIRTHDAY | Amanda Redman, English actress |
| 12th of August 1960 | BIRTHDAY | Laurent Fignon, French cyclist (d. 2010) |
| 12th of August 1960 | BIRTHDAY | Greg Thomas, England cricketer |
| 12th of August 1960 | BIRTHDAY | Eduardo Tokeshi, Peruvian artist |
| 12th of August 1961 | BIRTHDAY | Roy Hay, British guitarist and keyboardist (Culture Club) |
| 12th of August 1961 | BIRTHDAY | Mark Priest, New Zealand cricketer |
| 12th of August 1961 | BIRTHDAY | Lawrence Hayward, English singer-songwriter and guitarist (Felt, Denim, Go Kart Mozart) |
| 12th of August 1963 | BIRTHDAY | Koji Kitao (Futahaguro Koji), Japanese sumo wrestler (the 60th Yokozuna) and professional wrestler |
| 12th of August 1963 | BIRTHDAY | Sir Mix-a-Lot, American rapper |
| 12th of August 1965 | BIRTHDAY | Peter Krause, American actor |
| 12th of August 1967 | BIRTHDAY | Andy Hui, Hong Kong actor and singer |
| 12th of August 1967 | BIRTHDAY | Regilio Tuur, Dutch boxer |
| 12th of August 1967 | BIRTHDAY | Andrey Plotnikov, Russian race walker |
| 12th of August 1968 | BIRTHDAY | Thorsten Boer, German footballer |
| 12th of August 1968 | BIRTHDAY | Andras Jones, American actor |
| 12th of August 1969 | BIRTHDAY | Tanita Tikaram, British singer |
| 12th of August 1969 | BIRTHDAY | Stuart Williams, Nevisian West Indies cricketer |
| 12th of August 1969 | BIRTHDAY | Aga Muhlach, Filipino actor |
| 12th of August 1970 | BIRTHDAY | Anthony Swofford, American novelist |
| 12th of August 1970 | BIRTHDAY | Jim Schlossnagle, American baseball coach |
| 12th of August 1970 | BIRTHDAY | Charles Mesure, British actor |
| 12th of August 1971 | BIRTHDAY | Yvette Nicole Brown, American actress |
| 12th of August 1971 | BIRTHDAY | Michael Ian Black, American comedian |
| 12th of August 1971 | BIRTHDAY | Pete Sampras, American tennis player |
| 12th of August 1971 | BIRTHDAY | Rebecca Gayheart, American actress |
| 12th of August 1972 | BIRTHDAY | Takanohana Koji, Japanese sumo wrestler, the 65th Yokozuna |
| 12th of August 1972 | BIRTHDAY | Mark Kinsella, Irish footballer |
| 12th of August 1972 | BIRTHDAY | Del tha Funkee Homosapien, American hip hop artist |
| 12th of August 1972 | BIRTHDAY | Gyanendra Pandey, Indian cricketer |
| 12th of August 1973 | BIRTHDAY | Joseba Beloki, Spanish cyclist |
| 12th of August 1973 | BIRTHDAY | Jonathan Coachman, American professional wrestler and executive |
| 12th of August 1973 | BIRTHDAY | Richard Reid, British terrorist (the "Shoe Bomber") |
| 12th of August 1973 | BIRTHDAY | Todd Marchant, American ice hockey player |
| 12th of August 1973 | BIRTHDAY | Muqtada al-Sadr, Iraqi theologian and political leader |
| 12th of August 1974 | BIRTHDAY | Matt Clement, American baseball player |
| 12th of August 1975 | BIRTHDAY | Casey Affleck, American actor |
| 12th of August 1976 | BIRTHDAY | Mikko Lindstrom, Finnish guitarist (HIM) |
| 12th of August 1976 | BIRTHDAY | Brad Lukowich, Canadian ice hockey player |
| 12th of August 1976 | BIRTHDAY | Richard McCourt, English children's television presenter |
| 12th of August 1976 | BIRTHDAY | Pedro Collins, Barbadian cricketer |
| 12th of August 1976 | BIRTHDAY | Henry Tuilagi, Samoan rugby union footballer |
| 12th of August 1976 | BIRTHDAY | Antoine Walker, American basketball player |
| 12th of August 1976 | BIRTHDAY | Wednesday 13, American vocalist (Wednesday 13, Murderdolls) |
| 12th of August 1977 | BIRTHDAY | Jesper Gr?nkjaer, Danish footballer |
| 12th of August 1977 | BIRTHDAY | Plaxico Burress, American football player |
| 12th of August 1977 | BIRTHDAY | Park Yong-ha, South Korean actor and singer (d. 2010) |
| 12th of August 1978 | BIRTHDAY | Chris Chambers, American football player |
| 12th of August 1978 | BIRTHDAY | Hayley Wickenheiser, Canadian ice hockey player |
| 12th of August 1979 | BIRTHDAY | Cindy Klassen, Canadian speed skater |
| 12th of August 1979 | BIRTHDAY | Austra Skujyte, Lithuanian athlete |
| 12th of August 1979 | BIRTHDAY | D.J. Houlton, American baseball player |
| 12th of August 1980 | BIRTHDAY | Dominique Swain, American actress |
| 12th of August 1980 | BIRTHDAY | Matt Thiessen, Canadian singer-songwriter (Relient K) |
| 12th of August 1980 | BIRTHDAY | Maggie Lawson, American actress |
| 12th of August 1980 | BIRTHDAY | Jade Villalon, American singer-songwriter |
| 12th of August 1981 | BIRTHDAY | Djibril Cisse, French footballer |
| 12th of August 1981 | BIRTHDAY | Kofi Kingston, American wrestler |
| 12th of August 1981 | BIRTHDAY | Tony Capaldi, Northern Irish footballer |
| 12th of August 1982 | BIRTHDAY | Iza Calzado, Filipino TV actress |
| 12th of August 1982 | BIRTHDAY | Alexandros Tzorvas, Greek footballer |
| 12th of August 1983 | BIRTHDAY | Klaas-Jan Huntelaar, Dutch footballer |
| 12th of August 1983 | BIRTHDAY | Manoa Vosawai, Italian rugby player |
| 12th of August 1984 | BIRTHDAY | Marian Rivera, Filipino actress |
| 12th of August 1985 | BIRTHDAY | Franck Moutsinga, German rugby player |
| 12th of August 1988 | BIRTHDAY | Leah Pipes, American actress |
| 12th of August 1988 | BIRTHDAY | Justin Gaston, American actor, model and singer |
| 12th of August 1990 | BIRTHDAY | Mario Balotelli, Italian footballer |
| 12th of August 0875 | DEATH | Louis II of Italy, Holy Roman Emperor (Born 825) |
| 12th of August 1424 | DEATH | Yongle Emperor of China (Born 1360) |
| 12th of August 1484 | DEATH | Pope Sixtus IV (Born 1414) |
| 12th of August 1484 | DEATH | George of Trebizond, Greek philosopher (Born 1395) |
| 12th of August 1512 | DEATH | Alessandro Achillini, Italian philosopher (Born 1463) |
| 12th of August 1577 | DEATH | Thomas Smith, English diplomat and scholar (Born 1513) |
| 12th of August 1588 | DEATH | Alfonso Ferrabosco, Italian composer (Born 1543) |
| 12th of August 1612 | DEATH | Giovanni Gabrieli, Italian composer |
| 12th of August 1633 | DEATH | Jacopo Peri, Italian composer (Born 1561) |
| 12th of August 1638 | DEATH | Johannes Althusius, German writer (Born 1557) |
| 12th of August 1648 | DEATH | Ibrahim I, Ottoman Sultan (Born 1615) |
| 12th of August 1674 | DEATH | Philippe de Champaigne, French painter (Born 1602) |
| 12th of August 1689 | DEATH | Pope Innocent XI (Born 1611) |
| 12th of August 1778 | DEATH | Peregrine Bertie, 3rd Duke of Ancaster and Kesteven, British general and politician (Born 1714) |
| 12th of August 1809 | DEATH | Mikhail Kamensky, Russian field marshal (Born 1738) |
| 12th of August 1810 | DEATH | Etienne Louis Geoffroy, French pharmacist and entomologist (Born 1725) |
| 12th of August 1822 | DEATH | Robert Stewart, Viscount Castlereagh, English politician and statesman (Born 1769) |
| 12th of August 1827 | DEATH | William Blake, English poet and artist (Born 1757) |
| 12th of August 1829 | DEATH | Charles Sapinaud de La Rairie, French royalist general and counterrevolutionary (Born 1760) |
| 12th of August 1848 | DEATH | George Stephenson, British locomotive designer (Born 1781) |
| 12th of August 1861 | DEATH | Eliphalet Remington, American inventor (Born 1793) |
| 12th of August 1864 | DEATH | Sakuma Shozan, Japanese reformer (Born 1811) |
| 12th of August 1865 | DEATH | William Jackson Hooker, English botanist (Born 1785) |
| 12th of August 1891 | DEATH | James Russell Lowell, American poet and essayist (Born 1819) |
| 12th of August 1896 | DEATH | Thomas Chamberlain, American Civil War military figure (Born 1841) |
| 12th of August 1900 | DEATH | Wilhelm Steinitz, Austrian chess player (Born 1836) |
| 12th of August 1901 | DEATH | Adolf Erik Nordenskiold, Finnish-born Swedish explorer (Born 1832) |
| 12th of August 1904 | DEATH | William Renshaw, British tennis player (Born 1861) |
| 12th of August 1914 | DEATH | John Philip Holland, Irish submarine designer (Born 1840) |
| 12th of August 1918 | DEATH | Anna Held, Polish-born American actress and singer (Born 1872) |
| 12th of August 1922 | DEATH | Arthur Griffith, Irish politician (Born 1871) |
| 12th of August 1928 | DEATH | Leos Janacek, Czech composer (Born 1854) |
| 12th of August 1934 | DEATH | Hendrik Petrus Berlage, Dutch architect (Born 1856) |
| 12th of August 1935 | DEATH | Friedrich Schottky, German mathematician (Born 1851) |
| 12th of August 1941 | DEATH | Bobby Peel, English cricketer (Born 1857) |
| 12th of August 1943 | DEATH | Vittorio Sella, Italian photographer (Born 1859) |
| 12th of August 1944 | DEATH | Joseph P. Kennedy, Jr., brother of President John F. Kennedy (Born 1915) |
| 12th of August 1948 | DEATH | Harry Brearley, English inventor (Born 1871) |
| 12th of August 1952 | DEATH | David Bergelson, Ukrainian-born Soviet Yiddish language writer (Born 1884) |
| 12th of August 1955 | DEATH | Thomas Mann, German writer, Nobel laureate (Born 1875) |
| 12th of August 1955 | DEATH | James B. Sumner, American chemist, Nobel laureate (Born 1887) |
| 12th of August 1959 | DEATH | Mike O'Neill, Irish-born American baseball player (Born 1877) |
| 12th of August 1964 | DEATH | Ian Fleming, English novelist, creator of James Bond (Born 1908) |
| 12th of August 1967 | DEATH | Esther Forbes, American novelist (Born 1891) |
| 12th of August 1973 | DEATH | Walter Rudolf Hess, Swiss physiologist, Nobel laureate (Born 1881) |
| 12th of August 1973 | DEATH | Karl Ziegler, German chemist, Nobel Prize Laureate (Born 1898) |
| 12th of August 1979 | DEATH | Sir Ernst Boris Chain, British biochemist, Nobel laureate (Born 1906) |
| 12th of August 1982 | DEATH | Henry Fonda, American actor (Born 1905) |
| 12th of August 1982 | DEATH | Salvador Sanchez, Mexican boxer (Born 1959) |
| 12th of August 1982 | DEATH | Varlam Shalamov, Russian writer (Born 1907) |
| 12th of August 1984 | DEATH | Lenny Breau, American jazz guitarist (Born 1941) |
| 12th of August 1985 | DEATH | Kyu Sakamoto, Japanese singer (Born 1941) |
| 12th of August 1985 | DEATH | Manfred Winkelhock, German race car driver (Born 1951) |
| 12th of August 1988 | DEATH | Jean-Michel Basquiat, American painter and graffiti artist (Born 1960) |
| 12th of August 1989 | DEATH | William Shockley, American physicist, Nobel laureate (Born 1910) |
| 12th of August 1989 | DEATH | Samuel Okwaraji, Nigerian footballer (Born 1964) |
| 12th of August 1990 | DEATH | Dorothy Mackaill, British-born American actress (Born 1903) |
| 12th of August 1990 | DEATH | B. Kliban, American cartoonist (Born 1935) |
| 12th of August 1992 | DEATH | John Cage, American composer (Born 1912) |
| 12th of August 1996 | DEATH | Robert Gravel, French-Canadian actor and theatrical director (Born 1945) |
| 12th of August 1996 | DEATH | Mark Gruenwald, American comic book writer and editor (Born 1953) |
| 12th of August 1996 | DEATH | Viktor Hambardzumyan, Soviet Armenian scientist (Born 1908) |
| 12th of August 1997 | DEATH | Luther Allison, American blues guitarist (Born 1939) |
| 12th of August 1999 | DEATH | Jean Drapeau, Quebec politician (Born 1916) |
| 12th of August 2000 | DEATH | Loretta Young, American actress (Born 1913) |
| 12th of August 2002 | DEATH | Enos Slaughter, American baseball player (Born 1916) |
| 12th of August 2004 | DEATH | Sir Godfrey Hounsfield, English electrical engineer and inventor, Nobel laureate (Born 1919) |
| 12th of August 2004 | DEATH | Peter Woodthorpe, British actor (Born 1931) |
| 12th of August 2005 | DEATH | John Loder, English sound engineer and record producer (Born 1946) |
| 12th of August 2007 | DEATH | Mike Wieringo, American comic book artist (Born 1963) |
| 12th of August 2007 | DEATH | Merv Griffin, American television host and game show creator (Born 1925) |
| 12th of August 2008 | DEATH | Christie Allen, English-born Australian pop singer (Born 1954) |
| 12th of August 2009 | DEATH | Les Paul, American guitarist (Born 1915) |
| 12th of August 2010 | DEATH | Isaac Bonewits, American writer and neopaganist (Born 1949) |
| 12th of August 2010 | DEATH | Richie Hayward, American musician (Little Feat) (Born 1946) |
| 12th of August 2010 | DEATH | Guido de Marco, Maltan politician and diplomat (Born 1931) |