This is a list of selected August 12 anniversaries that appear in the "On this day" section of the Main Page. To suggest a new item, in most cases, you can be bold and edit this page. Please read the selected anniversaries guidelines before making your edit. However, if your addition might be controversial or on a day that is or will soon be on the Main Page, please post your suggestion on the talk page instead.
Please note that the events listed on the Main Page are chosen based more on relative article quality and to maintain a mix of topics, not based solely on how important or significant their subjects are. Only four to five events are posted at a time and thus not everything that is "most important and significant" can be listed. In addition, an event is generally not posted this year if it is also the subject of the scheduled featured article or picture of the day.
To report an error when this appears on the Main Page, see Main Page errors. Please remember that this list defers to the supporting articles, so it is best to achieve consensus and make any necessary changes there first.
Staging area
Images
Use only ONE image at a time
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David the Builder of Georgia -
IBM PC -
Isaac M. Singer -
A sewing machine -
Tyrannosaurus rex -
Deimos -
Cover of the 1945 Princeton edition of the Smyth Report -
Sue, the most complete T. rex skeleton found
Ineligible
| Blurb | Reason |
|---|---|
| International Youth Day | primary sources |
| Mother's Day and Queen Sirikit's Birthday in Thailand | Mother's Day: refimprove; Sirikit: unreferenced sections |
| 1121 – Georgian-Seljuk wars: Forces led by David the Builder decisively won the Battle of Didgori, driving Ilghazi and the Seljuk Turks out of Georgia. | refimprove |
| 1323 – Sweden and the Novgorod Republic signed the Treaty of Nöteborg resulting in a temporary hiatus in the Swedish–Novgorodian Wars. | lots of inline tags |
| 1676 – Puritans and their Native American allies killed the Wampanoag chief Metacomet (known as "King Philip"), essentially ending King Philip's War. | refimprove sections |
| 1851 – American inventor Isaac Singer was granted a patent for his sewing machine. | needs more footnotes |
| 1877 – American astronomer Asaph Hall discovered Deimos, the smaller of the two moons of Mars. | too many {{CN}} tags (10) |
| 1944 – After a week of indiscriminate killing of civilians in Wola, Warsaw, Poland, SS General Erich von dem Bach-Zelewski ordered that any remaining Poles be sent to labour or concentration camps. | too many {{CN}} tags (8) |
| 1948 – About 600 unarmed Pashtuns in the North-West Frontier Province of Pakistan, protesting the arrests of leaders of the Khudai Khidmatgar movement, were massacred by police and militia forces. | refimprove |
| 1950 – Korean War: Members of the North Korean People's Army executed 75 U.S. Army prisoners of war. | manner of death not mentioned in source |
| 1953 – The first Soviet thermonuclear bomb, Joe 4, was detonated at Semipalatinsk, Kazakh SSR. | lots of CN tags (5) |
| 1981 – The IBM Personal Computer, the original version and progenitor of the IBM PC compatible hardware platform, was introduced. | refimprove section |
| 1994 – Major League Baseball players went on a 232-day strike, forcing the cancellation of the rest of the season and the World Series. | unreferenced section |
| 2005 – Sri Lanka foreign minister Lakshman Kadirgamar was fatally shot by a Liberation Tigers of Tamil Eelam sniper as he was getting out of his swimming pool at his home in Colombo. | refimprove |
| 2008 – A ceasefire was announced between Russian, Georgian and South Ossetian separatist forces in the Russo-Georgian War. | tagged with {POV} |
| Abraham Zacuto |b|1452| | Uncited birthdate |
| Robert Southey |b|1774 | refimprove |
| William Blake |d|1827 | original research |
| Charles Blackman |b|1928 | refimprove section |
| George Soros |b|1930| | Lots of unsourced paras, 1-sentence sections |
Eligible
- 1099 – Crusades: Fatimid forces under al-Afdal Shahanshah began retreating to Egypt after the Battle of Ascalon, concluding the First Crusade.
- 1881 – Franco-American children as young as seven years old commenced a strike against Cabot Mill of Brunswick, Maine. The Mill had to shut down operations for three days.
- 1945 – An official administrative history of the Manhattan Project, written by American physicist Henry DeWolf Smyth, was released to the public days after the atomic bombings of Hiroshima and Nagasaki.
- 1952 – Thirteen Jewish poets were executed in Moscow for espionage based on false confessions.
- 1969 – The Troubles: Riots erupted in the neighbourhood of Bogside in Derry, and spread across much of Northern Ireland.
- 1985 – Japan Air Lines Flight 123 crashed into Mount Takamagahara in Gunma Prefecture, killing 520 of 524 people on board in the world's worst single-aircraft aviation disaster.
- 1990 – Near Faith, South Dakota, American paleontologist Sue Hendrickson found one of the most complete Tyrannosaurus rex skeletons, nicknamed Sue (pictured).
- 2000 – Kursk, an Oscar-class submarine of the Russian Navy, suffered an on-board explosion and sank in the Barents Sea during a military exercise with 118 lives lost.
- 2016 – The state-owned Taedonggang Brewing Company inaugurated the first beer festival in North Korea.
- Born/died:Jænberht |d|792|Guy de Beauchamp, 10th Earl of Warwick |d|1315| Thomas F. Mulledy |b|1794| Maurice Fernandes |b|1897| Percy Mayfield |b|1920| Aleksandar Đurić |b|1970| Evaline Ness |d|1986|Mario Balotelli |b|1990
Notes
- Phobos (moon) appears on August 18, so Deimos should not appear in the same year
- Enola Gay/Little Boy appear on August 6 and Bockscar/Fat Man appear on August 9 – Smyth Report should not appear in the same year
Quagga mare at London Zoo
- 1834 – A race riot in Philadelphia destroyed African-American businesses and killed two people.
- 1883 – The last known quagga (example pictured), a subspecies of the plains zebra, died at Natura Artis Magistra, a zoo in Amsterdam.
- 1914 – World War I: Belgian troops won a victory at the Battle of Halen, but were ultimately unable to stop the German invasion of Belgium.
- 1944 – World War II: In Sant'Anna di Stazzema, Italy, the Waffen-SS and the Brigate Nere murdered about 560 local villagers and refugees and burned their bodies.
- Archduchess Isabella Clara of Austria (b. 1629)
- John C. Young (b. 1803)
- Carlos Mesa (b. 1953)
- Ladi Kwali (d. 1984)