Wikipedia:Selected anniversaries/September
Selected anniversaries / On this day archive
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| An archive of historical anniversaries that appeared on the Main Page 2026 day arrangement |
Battle of Chantilly map
- 1862 – American Civil War: Confederate forces attacked retreating troops (map shown) of the Union army during a rainstorm in Chantilly, Virginia, but the battle ended inconclusively.
- 1911 – Construction began on the Saline Valley salt tram, which during its operation was the steepest tram in the United States.
- 1939 – German forces attacked multiple locations in Poland, including Wieluń and Westerplatte, starting World War II in Europe.
- 1966 – Rioting erupted in Dayton, Ohio, resulting in one death and the mobilization of the Ohio National Guard.
- 1973 – A 76-hour multinational rescue effort off the coast of Ireland resulted in the deepest sub rescue in history.
- Princess Alexandra of Saxe-Coburg and Gotha (b. 1878)
- Abdur Rahman Biswas (b. 1926)
- Barry Gibb (b. 1946)
- Albert Speer (d. 1981)
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September 2: National Day in Vietnam (1945)
Editorial cartoon showing Theodore Roosevelt carrying a big stick
- 1789 – The United States Department of the Treasury was founded following financial concerns in the new nation.
- 1870 – Franco-Prussian War: Prussian forces captured Napoleon III at the Battle of Sedan, which led to the collapse of the Second French Empire within days.
- 1901 – U.S. vice president Theodore Roosevelt first publicly used the phrase "speak softly and carry a big stick" (cartoon pictured) at the Minnesota State Fair, describing his philosophy of negotiating peacefully while simultaneously threatening to use military force.
- 1946 – The interim government of India, headed by Jawaharlal Nehru, was formed to assist the transition of India from British rule to independence.
- 1998 – A fire in the cockpit on Swissair Flight 111, en route from New York City to Geneva, caused the aircraft to crash into the Atlantic Ocean near Canada, killing all 229 people on board.
- Constantius III (d. 421)
- Mary Cecil Allen (b. 1893)
- Monte Pearson (b. 1908)
- Joshua Soule Zimmerman (d. 1962)
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September 3: Victory over Japan Day in China (1945)
Malcolm Campbell
- 36 BC – The Sicilian revolt against the Second Triumvirate of the Roman Republic ended when the fleet of Sextus Pompey, the rebel leader, was defeated at the Battle of Naulochus.
- 1411 – The Treaty of Selymbria was concluded between the Republic of Venice and the Ottoman prince Musa Çelebi.
- 1935 – On the Bonneville Salt Flats in Utah, British racing motorist Malcolm Campbell (pictured) became the first person to drive an automobile over 300 mph (480 km/h).
- 1941 – The mass expulsion of Soviet Germans from the Volga German ASSR began.
- 2017 – North Korea conducted its sixth and most powerful nuclear test at Punggye-ri, causing a magnitude-6.3 earthquake.
- Edward Coke (d. 1634)
- Paddy Fox (b. 1933)
- Dominic Thiem (b. 1993)
- Pauline Kael (d. 2001)
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A 1675 depiction of the 1666 Great Fire
- 476 – Germanic leader Odoacer captured Ravenna and deposed Emperor Romulus Augustus, marking the fall of the Western Roman Empire.
- 1666 – The most destructive damage from the Great Fire of London (depicted) occurred.
- 1912 – The Albanian revolt ended when the Ottoman government agreed to meet most of the rebels' demands.
- 1977 – The Golden Dragon massacre occurred in Chinatown, San Francisco, United States, leaving five people dead and spurring police to end Chinese gang violence in the city.
- 1995 – Three U.S. servicemen stationed at Camp Hansen in Okinawa, Japan, raped a 12-year-old girl, after kidnapping, beating, and torturing her.
- John Palmer (b. 1885)
- Bert Olmstead (b. 1926)
- David Littleproud (b. 1976)
- Katharine, Duchess of Kent (d. 2025)
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Casablanca Fair poster
- 1367 – Swa Saw Ke became the ruler of the Kingdom of Ava in Upper Myanmar.
- 1915 – The Casablanca Fair (poster pictured) opened in the French protectorate in Morocco.
- 1943 – World War II: American and Australian airborne forces landed at Nadzab as part of the New Guinea campaign against Japan.
- 1977 – NASA launched the space probe Voyager 1, currently the farthest spacecraft from Earth, from Launch Complex 41 at Cape Canaveral Air Force Station.
- 2005 – Mandala Airlines Flight 091 crashed shortly after take-off in Indonesia due to pilot error, killing 100 out of the 117 people on board along with 49 more on the ground.
- Nap Lajoie (b. 1874)
- Carmen Petra Basacopol (b. 1926)
- Freddie Mercury (b. 1946)
- Adam Exner (d. 2023)
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September 6: Defence Day in Pakistan (1965)
Liz Truss
- 1566 – Suleiman the Magnificent, the longest-reigning sultan of the Ottoman Empire, died at the age of 71.
- 1634 – Thirty Years' War: In the Battle of Nördlingen, the Catholic Imperial army defeated Swedish and German Protestant forces.
- 1916 – The first self-service grocery store, Piggly Wiggly, was founded in Memphis, Tennessee, U.S.
- 1976 – Soviet pilot Viktor Belenko landed his MiG-25 in Hakodate, Japan, declaring his intention to defect to the West.
- 2022 – Liz Truss (pictured) succeeded Boris Johnson as prime minister following the July 2022 United Kingdom government crisis.
- Pope John XIII (d. 972)
- Wendi Richter (b. 1961)
- Chris Christie (b. 1962)
- Dolores O'Riordan (b. 1971)
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September 7: Labour Day in Canada and Labor Day in the United States (2026)
Flag of Brazil from 1822 to 1853
- 1652 – Chinese peasants on Formosa (now Taiwan) began a rebellion against Dutch rule which was suppressed four days later.
- 1822 – Pedro I declared the independence of Brazil from Portugal, establishing the Empire of Brazil (flag pictured).
- 1936 – The last thylacine died in captivity in Hobart Zoo, Australia.
- 1986 – Desmond Tutu became the first black leader of the Anglican Church of Southern Africa.
- 2004 – Hurricane Ivan made landfall on Grenada, devastating at least 85 per cent of buildings on the island.
- Gregory Bicskei (d. 1303)
- John Shakespeare (d. 1601)
- Ersin Tatar (b. 1960)
- Elinor Barker (b. 1994)
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September 8: Victory Day in Malta
Severn Bridge
- 1566 – Ottoman–Habsburg wars: Ottoman forces led by Suleiman the Magnificent captured the fortress of Szigetvár in Hungary, but were forced to end their campaign to take Vienna.
- 1726 – J. S. Bach led the first performance of Geist und Seele wird verwirret, a solo cantata for alto voice.
- 1796 – French Revolutionary Wars: Led by Napoleon, French forces defeated the Austrians at the Battle of Bassano in Veneto, Italy.
- 1966 – Queen Elizabeth II opened the Severn Bridge (pictured), linking South Gloucestershire in England and Monmouthshire in Wales.
- 1974 – Watergate scandal: U.S. president Gerald Ford gave his recently resigned predecessor Richard Nixon a controversial full and unconditional pardon for any crimes he committed while in office.
- Seraphina Sforza (d. 1478)
- Inez Knight Allen (b. 1876)
- Peter Sellers (b. 1925)
- Alexandra David-Néel (d. 1969)
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Ludwigsburg Palace courtyard
- 1791 – The commissioners overseeing the construction of the United States' new capital city named it Washington, in honor of the first president.
- 1892 – At the Lick Observatory in California, Edward Emerson Barnard discovered Amalthea, a moon of Jupiter and the last natural satellite to be discovered by visual observation.
- 1939 – World War II: About 3,000 Polish Army troops began a nearly month-long defence of the Hel Peninsula during the German invasion of Poland.
- 1962 – French president Charles de Gaulle delivered his "speech to the German youth" to 20,000 people in the courtyard of Ludwigsburg Palace (pictured).
- 1999 – The first banknotes of the Portrait Series of the Singapore dollar were introduced by the Board of Commissioners of Currency.
- Eleanor de' Medici (d. 1611)
- Hugh Grant (b. 1960)
- Mao Zedong (d. 1976)
- Luka Modrić (b. 1985)
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Charlie Kirk
- 1547 – Anglo-Scottish Wars: English forces defeated the Scots at the Battle of Pinkie near Musselburgh, Lothian, Scotland.
- 1961 – At the Italian Grand Prix at Monza, German driver Wolfgang von Trips's car collided with another, causing it to become airborne and crash into a side barrier, killing him and 15 spectators.
- 1990 – Pope John Paul II consecrated the Basilica of Our Lady of Peace, one of the largest churches in the world, in Yamoussoukro, Ivory Coast.
- 2017 – Hurricane Irma made landfall on Cudjoe Key, Florida, as a Category 4, after causing catastrophic damage throughout the Caribbean.
- 2025 – American political activist Charlie Kirk (pictured) was shot and killed at an event at Utah Valley University.
- John J. Crittenden (b. 1787)
- Jeppe Aakjær (b. 1866)
- Ho Feng-Shan (b. 1901)
- Stephen Jay Gould (b. 1941)
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September 11: National Day of Catalonia
Alexander Hamilton
- 1776 – British and American leaders held a peace conference on Staten Island, New York, in the hopes of bringing an end to the nascent American Revolutionary War.
- 1789 – Alexander Hamilton (pictured), co-writer of The Federalist Papers, became the first U.S. Secretary of the Treasury.
- 1851 – In a fight near Christiana, Pennsylvania, a group of escaped slaves and free Blacks led by William Parker fought off a federal posse seeking to arrest and return the escapees to slavery.
- 1945 – The Japanese-run camp at Batu Lintang in Borneo was liberated by the Australian 9th Division, averting the planned massacre of its 2,000-plus Allied POWs and civilian internees by four days.
- 2025 – Former Brazilian president Jair Bolsonaro was sentenced to 27 years in prison for his involvement in a coup plot.
- Johann Bernhard Basedow (b. 1724)
- Paul Nahaolelua (b. 1806)
- Sviatlana Tsikhanouskaya (b. 1982)
- Alberto Fujimori (d. 2024)
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September 12: First day of Rosh Hashanah (Judaism, 2026)
Portrait of Yax Nuun Ahiin I
- 379 – Yax Nuun Ahiin I (depicted) took the throne as the ruler (ajaw) of the Mayan city of Tikal.
- 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.
- 1928 – The Okeechobee hurricane first struck the island of Guadeloupe; eventually it reached the United States and caused over 4,000 deaths overall.
- 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.
- 2015 – An explosion involving illegally stored mining detonators in Petlawad, India, killed 104 people and injured more than 150 others.
- Andronikos I Komnenos (d. 1185)
- Count Anton Alexander von Auersperg (d. 1876)
- Joe Schmidt (b. 1965)
- Joshua Cheptegei (b. 1996)
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Model of Luna 2
- 1759 – French and Indian War: British forces won the Battle of the Plains of Abraham near Quebec City, despite General James Wolfe being mortally wounded.
- 1814 – War of 1812: Fort McHenry in Baltimore's Inner Harbor was attacked by British forces during the Battle of Baltimore, inspiring Francis Scott Key to write "Defence of Fort McHenry", later used as the lyrics to the United States national anthem.
- 1959 – The Soviet spacecraft Luna 2 (model pictured) struck the Moon, the first spacecraft to reach another celestial body.
- 1971 – Following a failed coup attempt, Mao Zedong's second-in-command Lin Biao died in a plane crash while attempting to flee China.
- 2008 – Five bomb blasts took place in Delhi, India, killing at least 20 people as part of a series of attacks perpetrated by the Indian Mujahideen.
- Kavad I (d. 531)
- Pat Collins (b. 1896)
- Lili Elbe (d. 1931)
- Antony Hewish (d. 2021)
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Nur Muhammad Taraki
- AD 81 – Domitian, the last Flavian emperor of Rome, was confirmed by the Senate to succeed his brother Titus.
- 1723 – António Manoel de Vilhena, Grand Master of the Knights Hospitaller, laid the first stone of Fort Manoel in Malta.
- 1901 – Theodore Roosevelt became President of the United States at age 42, the youngest person ever to do so, eight days after William McKinley was fatally wounded in Buffalo, New York.
- 1979 – Afghan president Nur Muhammad Taraki (pictured) was overthrown and later killed on the orders of Hafizullah Amin, who succeeded him.
- 2019 – Drone attacks on major processing facilities at Abqaiq and Khurais forced Saudi Arabia to cut more than half of its oil production.
- Drusus Julius Caesar (d. AD 23)
- John Boyden (b. 1936)
- Ron DeSantis (b. 1978)
- Grace Kelly (d. 1982)
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September 15: Battle of Britain Day in the United Kingdom (1940)
- 1791 – French playwright Olympe de Gouges published the Declaration of the Rights of Woman and of the Female Citizen, hoping to expose the failures of the French Revolution in the recognition of gender equality.
- 1821 – The Province of Guatemala proclaimed the independence of Central America from the Spanish Empire.
- 1944 – World War II: The Greek People's Liberation Army won the Battle of Meligalas and began the execution of many prisoners of war and civilians.
- 1963 – The Ku Klux Klan bombed the 16th Street Baptist Church, an African-American church in Birmingham, Alabama, killing four girls and injuring at least 14 other people (memorial march pictured).
- 2020 – Signing of the Abraham Accords (signatories pictured) occurs in Washington, D.C., normalizing relations between Israel and two Arab nations, the United Arab Emirates and Bahrain.
- Stanisław Poniatowski (b. 1676)
- Charles-Amédée Kohler (d. 1874)
- Signe Toly Anderson (b. 1941)
- Mirosław Hermaszewski (b. 1941)
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September 16: Malaysia Day in Malaysia (1963); Independence Day in Papua New Guinea (1975)
Radar image of Typhoon Nancy
- 681 – At the Third Council of Constantinople, Pope Honorius I was posthumously excommunicated, with his support for monothelitism deemed to be heretical.
- 1776 – American Revolutionary War: American colonists defeated British troops at the Battle of Harlem Heights on the island of Manhattan.
- 1961 – Typhoon Nancy, which possibly had the strongest winds ever measured in a tropical cyclone, made landfall in Muroto, Japan.
- 1963 – Malaysia was formed as an independent nation from the Federation of Malaya, the Colony of Singapore, the Crown Colony of North Borneo, and the Crown Colony of Sarawak.
- 2007 – One-Two-Go Airlines Flight 269 crashed after attempting a poorly executed go-around while landing in Thailand, killing 90 out of the 130 people on board.
- Philip III of Navarre (d. 1343)
- Raosaheb Gogte (b. 1916)
- Louis Ngwat-Mahop (b. 1987)
- Robert Redford (d. 2025)
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September 17: Constitution Day and Citizenship Day in the United States
Harriet Tubman
- 1382 – Following Louis I's death without a male heir, his daughter Mary was crowned with the title of "King" of Hungary.
- 1849 – Harriet Tubman (pictured) escaped from slavery in the U.S. state of Maryland, and later orchestrated the rescues of other slaves via the Underground Railroad.
- 1939 – World War II: The Soviet Union invaded Poland from the east, sixteen days after Nazi Germany's attack on the country from the west.
- 1962 – NASA announced the Next Nine astronauts selected for the purpose of landing on the moon.
- 2008 – Seven al-Qaeda fighters attack the embassy of the United States in Sanaa, Yemen, leaving 20 people dead.
- Li Jingsui (d. 958)
- Stephen Hales (b. 1677)
- Arne Slot (b. 1978)
- Red Skelton (d. 1997)
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Flag of Scotland
- AD 96 – Nerva, the first of the "Five Good Emperors" of ancient Rome, came to power following the assassination of his predecessor Domitian.
- 1851 – The New York Times, the largest metropolitan newspaper in the United States, was founded.
- 1962 – Aeroflot Flight 213 crashed into a mountain near Chersky Airport, killing 32 people.
- 2001 – Five letters containing anthrax spores were mailed to various media outlets in the United States.
- 2014 – Scotland (flag pictured) voted against independence from the United Kingdom.
- André Dacier (d. 1722)
- Edwin McMillan (b. 1907)
- Volin (d. 1945)
- Chris Chan (b. 1950)
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September 19: International Talk Like a Pirate Day
Meditation
- 1692 – Salem witch trials: Giles Corey was crushed to death for refusing to enter a plea to charges of witchcraft, reportedly asking the sheriff for "more weight" during his execution.
- 1893 – New Zealand became the first country to introduce universal suffrage following the women's suffrage movement led by Kate Sheppard.
- 1910 – Edith Maryon's bronze statuette Meditation (pictured) was exhibited at the Walker Art Gallery in Liverpool.
- 1976 – An unidentified flying object over Tehran in Iran was observed by multiple civilians and military personnel, which has been described as one of the most credible cases in ufology.
- 2011 – Mariano Rivera surpassed Trevor Hoffman to become Major League Baseball's all-time career leader in saves.
- William Robertson (b. 1721)
- Adam West (b. 1928)
- Rudolf Peierls (d. 1995)
- Damayanti Joshi (d. 2004)
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Great Buddha of Kamakura
- 1498 – A tsunami caused by the Meiō earthquake washed away the building housing the statue of the Great Buddha (pictured) at Kōtoku-in in Kamakura, Japan; the statue has since stood in the open air.
- 1906 – The ocean liner RMS Mauretania, the largest and fastest ship in the world at the time, was launched in Tyneside, England.
- 1944 – Second World War: Allied forces captured San Marino from the German Army.
- 1973 – Billie Jean King defeated Bobby Riggs in straight sets at the Astrodome in Houston, Texas, in an internationally televised tennis match dubbed the "Battle of the Sexes".
- 2011 – The United States military ended its "don't ask, don't tell" policy, consequently allowing gay and lesbian people to serve openly.
- George Robey (d. 1869)
- Hartini (b. 1924)
- Peter Prevc (b. 1992)
- Victor Henry Anderson (d. 2001)
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September 21: International Day of Peace; Yom Kippur (Judaism, 2026)
I-80 in western Iowa
- 1435 – The Treaty of Arras is promulgated, causing Burgundy to switch sides in the Hundred Years' War.
- 1776 – American Revolutionary War: The Great Fire of New York (depicted) broke out during the British occupation of New York City, destroying up to 1,000 buildings.
- 1937 – J. R. R. Tolkien's fantasy children's novel The Hobbit, which later served as a prelude to The Lord of the Rings, was first published.
- 1958 – The first section of Interstate 80 in Iowa (pictured) opened in the Des Moines metropolitan area.
- 2001 – America: A Tribute to Heroes is broadcast by over 35 network and cable channels, raising over $200 million for the victims of the September 11 attacks.
- Andrew II of Hungary (d. 1235)
- Héctor Alterio (b. 1929)
- Israel Katz (b. 1955)
- John Boyden (d. 2021)
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Nordhordland Bridge
- 1236 – Livonian Crusade: The Livonian Brothers of the Sword were soundly defeated by pagan Samogitian and Semigallian troops at the Battle of Saule.
- 1934 – One of Britain's worst mining accidents took place when an explosion at Gresford Colliery in Wales killed 266 men.
- 1979 – An American Vela satellite detected an unidentified flash of light near the Prince Edward Islands in the Indian Ocean, thought to be a nuclear weapons test.
- 1994 – The Nordhordland Bridge (pictured), crossing Salhusfjorden between Klauvaneset and Flatøy in Vestland, and Norway's second-longest bridge, officially opened.
- 2013 – Insurgency in Khyber Pakhtunkhwa: All Saints Church in Peshawar, Pakistan, was attacked by two suicide bombers who killed 127 people.
- Frank O'Connor (b. 1897)
- Norma McCorvey (b. 1947)
- Thomas Dörflein (d. 2008)
- Edna Molewa (d. 2018)
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September 23: Celebrate Bisexuality Day
Artist Depiction of the Battle of Arnemuiden
- 1338 – The Battle of Arnemuiden, in which a French force defeats the English, is the first naval battle of the Hundred Years' War.
- 1913 – The United Mine Workers of America begin a strike against the Rockefeller-owned Colorado Fuel & Iron Company, sparking the Colorado Coalfield War.
- 1983 – Flying from Pakistan, Gulf Air Flight 771 was bombed up by the Abu Nidal Organization while on approach over the United Arab Emirates (UAE), killing all 112 people on board.
- 2008 – A gunman shot and killed ten students at the Seinäjoki University of Applied Sciences in Kauhajoki, Finland, before committing suicide.
- 2019 – The British travel company Thomas Cook Group ceased operations with immediate effect, leaving around 600,000 tourists stranded around the world.
- John Ainsworth Horrocks (d. 1846)
- Ellen Hayes (b. 1851)
- Sigmund Freud (d. 1939)
- Sean Spicer (b. 1971)
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September 24: Heritage Day in South Africa; Independence Day in Guinea-Bissau (1973)
Battle of San Juan de Ulúa
- 1568 – At San Juan de Ulúa (present-day Veracruz, Mexico), a Spanish naval fleet forced English privateers to halt their trade (battle pictured).
- 1789 – The Judiciary Act of 1789 was signed into law, establishing the U.S. federal judiciary and setting the number of Supreme Court justices at six.
- 1903 – Alfred Deakin became the second Australian prime minister, succeeding Edmund Barton, who left office to become a founding justice of the High Court of Australia.
- 1950 – The "Great Smoke Pall", generated by the Chinchaga fire, the largest recorded fire in North American history, was first recorded in present-day Nunavut and may eventually have circled the entire globe.
- 1975 – Dougal Haston and Doug Scott of the Southwest Face expedition became the first people to reach the summit of Mount Everest by ascending one of its faces.
- Robert of Knaresborough (d. 1218)
- John Rutter (b. 1945)
- Pia Wurtzbach (b. 1989)
- Gennady Yanayev (d. 2010)
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September 25: Mid-Autumn Festival (2026) in China, Taiwan, and Korea
Tacitus
- 275 – After the assassination of Aurelian, Tacitus (depicted) was chosen by the Senate to succeed him as Roman emperor.
- 1066 – Harold Godwinson defeated King Harald III of Norway and his English ally Tostig Godwinson at the Battle of Stamford Bridge, ending the last Norse invasion of the British Isles.
- 1775 – American Revolutionary War: Ethan Allen and a small force of American and Quebec militia failed to capture the city of Montreal from British forces.
- 1800 – French Revolutionary Wars: After U.S. ships became involved, French forces abandoned their invasion of the Batavian island of Curaçao.
- 1978 – While on approach to San Diego International Airport, Pacific Southwest Airlines Flight 182, a Boeing 727, collided with a Cessna 172, killing all 137 people on board both aircraft, along with 7 more on the ground.
- Oliver Loving (d. 1867)
- Silvana Pampanini (b. 1925)
- Karl-Heinz Rummenigge (b. 1955)
- José Fernández (d. 2016)
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September 26: First day of Sukkot (Judaism, 2026)
Yves Rossy
- 1087 – William II, son of William the Conqueror, was crowned king of England.
- 1907 – The British colony of New Zealand officially became a dominion to reflect its political independence since the 1850s.
- 1944 – World War II: The Soviet Red Army completed the Tallinn offensive, driving German forces out of Estonia.
- 1983 – The racing yacht Australia II, captained by John Bertrand, won the America's Cup and ended the New York Yacht Club's 132-year defence of the trophy.
- 2008 – Swiss pilot and inventor Yves Rossy (pictured) flew a wingpack powered by jet engines across the English Channel.
- Francis Daniel Pastorius (b. 1651)
- Alice Harnoncourt (b. 1930)
- Andi Ramang (d. 1987)
- Gloria Stuart (d. 2010)
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September 27: Gold Star Mother's Day in the United States (2026); Meskel (Orthodox Tewahedo)
Flag of China
- 1422 – The Treaty of Melno was signed, establishing the Prussian–Lithuanian border, which afterwards remained unchanged for about 500 years.
- 1875 – The merchant ship Ellen Southard was wrecked in a storm at Liverpool, England; the U.S. Congress subsequently awarded 27 Gold Lifesaving Medals to the men who rescued her crew.
- 1940 – World War II: Nazi Germany, Fascist Italy and the Empire of Japan signed the Tripartite Pact in Berlin, officially forming a military alliance known as the Axis.
- 1949 – Members of the Chinese People's Political Consultative Conference unanimously selected Zeng Liansong's design for the flag of China (pictured).
- 2014 – Mount Ontake in central Japan unexpectedly erupted, killing 63 people in the nation's deadliest eruption in more than 100 years.
- Guillaume Rondelet (b. 1507)
- Ivan Goncharov (d. 1891)
- Gwyneth Paltrow (b. 1972)
- Madeleine Tchicaya (d. 2021)
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Pope Pontian
- 235 – Pope Pontian (pictured) resigned after being exiled to Sardinia, becoming the first pope to relinquish the position.
- 1821 – The Declaration of Independence of the Mexican Empire from Spain was drafted in the National Palace in Mexico City.
- 1924 – A team of U.S. Army Air Service aviators landed in Seattle, Washington, to complete the first aerial circumnavigation of the world.
- 1958 – Fernando Rios, a Mexican tour guide in New Orleans, was killed in an instance of gay bashing.
- 2009 – A protest held by 50,000 people in Conakry, Guinea, was forcefully disrupted by the military junta, resulting in at least 157 deaths and over 1,200 injuries.
- Isis Pogson (b. 1852)
- Frank S. Scott (d. 1912)
- Kimiko Date (b. 1970)
- Shimon Peres (d. 2016)
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September 29: Michaelmas (Western Christianity)
University of East Anglia coat of arms
- 1923 – The Mandate for Palestine came into effect, officially creating the protectorates of Mandatory Palestine under British administration and Transjordan as a separate emirate under King Abdullah I.
- 1957 – An explosion at the Soviet nuclear reprocessing plant Mayak released 74 to 1,850 PBq of radioactive material.
- 1963 – The University of East Anglia (coat of arms featured) was founded in Norwich, England, after talk of establishing a university in the city began as early as the 19th century.
- 1991 – The award-winning Disney animated film Beauty and the Beast premiered while unfinished at the New York Film Festival.
- 2006 – Gol Transportes Aéreos Flight 1907 collided in mid-air with an Embraer Legacy business jet near Peixoto de Azevedo, Brazil, killing 154 people and triggering a national aviation crisis.
- William of Tyre (d. 1186)
- Ferdinand the Holy Prince (b. 1402)
- Choi Ye-na (b. 1999)
- Miriam Defensor Santiago (d. 2016)
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September 30: National Day for Truth and Reconciliation in Canada; Martyrs' Day in China
AH-64 Apache prototype
- 1342 – An Anglo-Breton army defeated a far larger Franco-Breton force in the first land battle of the Hundred Years' War.
- 1551 – Sue Takafusa, a retainer of the Ōuchi clan in western Japan, led a coup against the daimyō Ōuchi Yoshitaka, leading to the latter's forced suicide.
- 1863 – Georges Bizet's opera Les pêcheurs de perles premiered at the Théâtre Lyrique in Paris.
- 1982 – Cheers, an American television sitcom, debuted with its pilot episode on NBC.
- 2009 – A 7.6 MW earthquake struck off the southern coast of Sumatra, Indonesia, killing 1,115 and impacting an estimated 1.2 million people.
- Fan Yanguang (d. 940)
- Adelaide of Vianden (d. 1376)
- John Thirtle (b. 1839)
- Catie Ball (b. 1951)
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Selected anniversaries / On this day archive
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