Wikipedia:Selected anniversaries/September 12

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This is a list of selected September 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, featured list 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.

← September 11	September 13 →

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Images

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Flag of Cape Verde
Leó Szilárd
John III Sobieski
King Jan III Sobieski of Poland near Vienna
Gustav Mahler
Süleyman Demirel
Mae Jemison
Hinton St Mary Mosaic
Haile Selassie
Metrolink train wreck
President Kennedy's speech

Ineligible

Blurb	Reason
{{<!--If next year is a leap year-->#ifexpr:{{IsLeapYear\| {{CURRENTYEAR}} +1}}\|New Year's Day in the Coptic and the Ethiopian calendars (2024);}}	Coptic: refimprove; Ethiopian: no footnotes
1609 – While sailing aboard the Halve Maen, Englishman Henry Hudson began his exploration of the Hudson River, laying the foundation for Dutch colonization of present-day New York.	refimprove section
1683 – Great Turkish War: Polish troops led by John III Sobieski joined forces with a Habsburg army to defeat the Ottoman Empire at the Battle of Vienna.	refimprove section
1814 – War of 1812: Although the Maryland Militia lost the Battle of North Point, they delayed the British advance against Baltimore, buying time for the defense of the city.	refimprove
1848 – Switzerland became a federal state with the adoption of the Swiss Federal Constitution.	Lots of cn
1940 – Four teenagers discovered the Lascaux caves near Montignac, in the Dordogne département of France, containing cave paintings that are estimated to be 17,300 years old.	unreferenced section
1963 – The Roman Hinton St Mary Mosaic, containing a likely fourth-century depiction of Jesus, was discovered.	refimprove
1974 – Emperor Haile Selassie I of Ethiopia was deposed by the Derg, a military junta.	refimprove section
1980 – The Turkish Armed Forces ousted prime minister Süleyman Demirel and ruled the country for three years before democracy was restored.	unreferenced section
1990 – The Two Plus Four Agreement was signed in Moscow, paving the way for German reunification.	unreferenced section
1992 – Abimael Guzmán, leader of the Peruvian Maoist guerrilla organization Shining Path, was captured in Lima.	refimprove section
2007 – Former Philippine president Joseph Estrada was convicted of plunder and sentenced to reclusión perpetua.	unreferenced section, refimprove section
Peter Scheemakers \|d\|1781	refimprove section
George Reid \|d\|1918\|	Prime Ministerial tenure is empty and has no sources
Atef Ebeid \|d\|2014	Only one sentence on being prime minister

Eligible

1309 – Reconquista: Castilian forces captured Gibraltar from the Emirate of Granada.
1910 – Gustav Mahler's Symphony No. 8, one of the largest-scale choral works in the classical concert repertoire and popularly known as the "Symphony of a Thousand", was first performed in Munich (1916 performers pictured).
1928 – The Okeechobee hurricane first struck the island of Guadeloupe; eventually it reached the United States and caused over 4,000 deaths overall.
1942 – RMS Laconia was sunk by a U-boat off the coast of West Africa, which then attempted to rescue the passengers as it was acting under the old prize rules.
1942 – World War II: The Imperial Japanese Army began the Battle of Edson's Ridge in an effort to retake Henderson Field on Guadalcanal in the Solomon Islands from the Allies.
1952 – Three boys in Flatwoods, West Virginia, U.S., reported seeing a ten-foot-tall (3 m) monster in the woods while investigating a UFO.
1962 – In a speech at Rice Stadium in Houston, U.S. president John F. Kennedy reiterated an aspiration to land a man on the Moon before 1970.
1977 – South African anti-apartheid activist Steve Biko died after being beaten in police custody in Port Elizabeth.
1983 – The clandestine Boricua Popular Army staged a bank robbery in West Hartford, Connecticut, making off with $7 million in the largest cash theft in U.S. history at the time.
1992 – Aboard Space Shuttle Endeavour, American Mae Jemison became the first Black woman to travel to space.
2003 – Typhoon Maemi, the strongest recorded typhoon to strike South Korea, made landfall near Busan.
2003 – The first public release of Steam, a distribution service for computer games, was made available for download.
2008 – A Metrolink train collided head-on with a freight train in Los Angeles, California, resulting in 25 deaths and 135 injuries; the Metrolink driver had passed through a red signal, having likely been distracted by text messaging.
2015 – An explosion involving illegally stored mining detonators in Petlawad, India, killed 104 people and injured more than 150 others.
Born/died this day: |Andronikos I Komnenos |d|1185| Mary Bosanquet Fletcher |b|1739| Philip Francis Thomas |b|1810| Carl Eytel |b|1862| Grace Macurdy |b|1866| Peter Mark Roget |b|1869| Fitz Hugh Ludlow |d|1870| Irène Joliot-Curie |b|1897| Walter Woon|b|1956| Tarana Burke |b|1973| Raymond Burr |d|1993| Leslie Cheung |d|2003 | Bengt Feldreich |b|1925

Notes

Battle of Baltimore appears on September 13, so Battle of North Point should not appear in the same year

September 12

Elizabeth Barrett Browning and Robert Browning

379 – Yax Nuun Ahiin I took the throne as the ruler (ajaw) of the Mayan city of Tikal.
1846 – The English poets Robert Browning and Elizabeth Barrett Browning (both pictured) married in secret to avoid their disapproving families before moving to Italy.
1933 – Hungarian-American physicist Leo Szilard conceived of the idea of the nuclear chain reaction while waiting for a traffic light in Bloomsbury, London.
1948 – The People's Liberation Army launched the Liaoshen campaign, the first of the three major military campaigns during the late stage of the Chinese Civil War.
1995 – Hurricane Ismael formed off the southwest coast of Mexico; it went on to kill over a hundred people in the country.

Parsley Peel (d. 1795)
Alice Ayres (b. 1859)
Ion Agârbiceanu (b. 1882)
Steve Biko (d. 1977)

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