On this day: September 14

Events on September 14

• 81 Domitian, the last Flavian emperor of Rome, was confirmed by the Senate to succeed his brother Titus. Wikipedia
• 786 "Night of the three Caliphs": Harun al-Rashid becomes the Abbasid caliph upon the death of his brother al-Hadi. Birth of Harun's son al-Ma'mun. Wikipedia
• 919 Viking activity in the British Isles: A coalition of native Irish, led by Niall Glúndub, failed in their attempt to drive the Vikings of the Uí Ímair from Ireland. Wikipedia
• 1723 António Manoel de Vilhena, Grand Master of the Knights Hospitaller, laid the first stone of Fort Manoel in Malta. Wikipedia
• 1741 George Frideric Handel completes his oratorio Messiah. Wikipedia
• 1752 Under the terms of the Calendar (New Style) Act 1750, the British Empire adopted the Gregorian calendar, skipping 11 days of the month. Wikipedia
• 1812 Napoleonic Wars: The French Grande Armée enters Moscow. The Fire of Moscow begins as soon as Russian troops leave the city. Wikipedia
• 1829 The Ottoman Empire signs the Treaty of Adrianople with Russia, thus ending the Russo-Turkish War. Wikipedia
• 1863 American Civil War: The Little Rock campaign ended with the Union Army capturing Little Rock, Arkansas. Wikipedia
• 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. Wikipedia
• 1911 Russian Premier Pyotr Stolypin is shot by Dmitry Bogrov while attending a performance of Rimsky-Korsakov's The Tale of Tsar Saltan at the Kiev Opera House, in the presence of Tsar Nicholas II. Wikipedia
• 1914 HMAS AE1, the Royal Australian Navy's first submarine, was lost at sea; its wreck was not found until 2017. Wikipedia
• 1940 Hungarian forces massacred at least 150 ethnic Romanians in Ip, Transylvania, following rumors that Romanians were responsible for the deaths of two soldiers. Wikipedia
• 1943 World War II: Nazi forces began a mass extermination campaign against the civilian residents of around 20 villages on the Greek island of Crete, eventually killing more than 500 men. Wikipedia
• 1944 World War II: Maastricht becomes the first Dutch city to be liberated by allied forces. Wikipedia
• 1960 The Organization of Petroleum Exporting Countries (OPEC) is founded. Wikipedia
• 1979 Afghan president Nur Muhammad Taraki was overthrown and later killed on the orders of Hafizullah Amin, who succeeded him. Wikipedia
• 1989 Typhoon Sarah dissipated after causing extensive damage along an erratic path across the Western Pacific, killing 71 in Taiwan, the Philippines, and the Gotō Islands. Wikipedia
• 1992 The Constitutional Court of Bosnia and Herzegovina declared the breakaway Croatian Republic of Herzeg-Bosnia to be unconstitutional. Wikipedia
• 1999 Kiribati, Nauru and Tonga join the United Nations. Wikipedia
• 2000 Microsoft releases Windows Me. Wikipedia
• 2001 Historic National Prayer Service held at Washington National Cathedral for victims of the September 11 attacks. A similar service is held in Canada on Parliament Hill, the largest vigil ever held in the nation's capital. Wikipedia
• 2003 President Kumba Ialá of Guinea-Bissau was deposed in a bloodless military coup. Wikipedia
• 2007 Late-2000s financial crisis: The Northern Rock bank received a liquidity support facility from the Bank of England, sparking a bank run—the United Kingdom's first in 150 years. Wikipedia
• 2015 Physicists of the LIGO and Virgo projects first observed gravitational waves, the existence of which was predicted by Henri Poincaré in 1905. Wikipedia
• 2019 Drone attacks on major processing facilities at Abqaiq and Khurais forced Saudi Arabia to cut more than half of its oil production. Wikipedia

Born on September 14

• 208 Diadumenian, Roman emperor (died 218) Wikipedia
• 768 Al-Ma'mun, Abbasid caliph, 7th (died 833) Wikipedia
• 1486 Heinrich Cornelius Agrippa, German theologian, astrologer, and alchemist (died 1535) Wikipedia
• 1580 Francisco de Quevedo, Spanish poet and politician (died 1645) Wikipedia
• 1769 Alexander von Humboldt, German geographer and explorer (died 1859) Wikipedia
• 1791 Franz Bopp, German linguist and academic (died 1867) Wikipedia
• 1864 Robert Cecil, 1st Viscount Cecil of Chelwood, English lawyer and politician, Under-Secretary of State for Foreign Affairs, Nobel Prize laureate (died 1958) Wikipedia
• 1879 Margaret Sanger, American nurse and activist (died 1966) Wikipedia
• 1913 Jacobo Árbenz, Guatemalan captain and politician, President of Guatemala (died 1971) Wikipedia
• 1920 Lawrence Klein, American economist and academic, Nobel Prize laureate (died 2013) Wikipedia
• 1936 Ferid Murad, American physician and pharmacologist, Nobel Prize laureate (died 2023) Wikipedia
• 1937 Renzo Piano, Italian architect and engineer, designed The Shard and The New York Times Building Wikipedia
• 1944 Günter Netzer, German footballer and manager Wikipedia
• 1947 Sam Neill, New Zealand actor (died 2026) Wikipedia
• 1955 Pope Leo XIV Wikipedia
• 1956 Kostas Karamanlis, Greek lawyer and politician, 181st Prime Minister of Greece Wikipedia
• 1974 Hicham El Guerrouj, Moroccan runner Wikipedia
• 1978 Ron DeSantis, American politician, 46th Governor of Florida Wikipedia
• 1979 Ivica Olić, Croatian footballer Wikipedia
• 1983 Amy Winehouse, British singer-songwriter, musician, and businesswoman (died 2011) Wikipedia
• 1988 Martin Fourcade, French biathlete Wikipedia
• 1990 Douglas Costa, Brazilian footballer Wikipedia

Died on September 14

• 23 Drusus Julius Caesar, Roman son of Tiberius (born 13 BC) Wikipedia
• 407 John Chrysostom, Byzantine archbishop and saint (born 347) Wikipedia
• 891 Stephen V, pope of the Catholic Church Wikipedia
• 1321 Dante Alighieri, Italian writer (born 1265) Wikipedia
• 1523 Pope Adrian VI (born 1459) Wikipedia
• 1712 Giovanni Domenico Cassini, Italian-French mathematician, astronomer, and engineer (born 1625) Wikipedia
• 1851 James Fenimore Cooper, American novelist, short story writer, and historian (born 1789) Wikipedia
• 1852 Arthur Wellesley, 1st Duke of Wellington, Irish-English field marshal and politician, Prime Minister of the United Kingdom (born 1769) Wikipedia
• 1901 William McKinley, American soldier, lawyer, and politician, 25th President of the United States (born 1843) Wikipedia
• 1916 José Echegaray, Spanish engineer, mathematician, and playwright, Nobel Prize laureate (born 1832) Wikipedia
• 1927 Isadora Duncan, American-Russian dancer and choreographer (born 1877) Wikipedia
• 1937 Tomáš Garrigue Masaryk, Czech sociologist and politician, 1st President of Czechoslovakia (born 1850) Wikipedia
• 1982 Grace Kelly, American-Monegasque actress; Princess of Monaco (born 1929) Wikipedia
• 2009 Patrick Swayze, American actor, singer, and dancer (born 1952) Wikipedia

Holidays and observances

• Christian feast day: Aelia Flaccilla (Eastern Orthodox Church) Wikipedia
• Christian feast day: Albert of Vercelli Wikipedia
• Christian feast day: Cormac mac Cuilennáin (or of Cashel) Wikipedia
• Christian feast day: Crescentius of Rome Wikipedia
• Christian feast day: Feast of the Cross (Christianity) Elevation of the Holy Cross (Eastern Orthodox) Wikipedia
• Christian feast day: Lord of Miracles of Buga Wikipedia
• Christian feast day: Gabriel-Taurin Dufresse (one of the Martyr Saints of China) Wikipedia
• Christian feast day: Maternus of Cologne Wikipedia
• Christian feast day: Notburga Wikipedia
• Christian feast day: September 14 (Eastern Orthodox liturgics) Wikipedia
• Engineer's Day (Romania) Wikipedia
• Hindi Day (Hindi-speaking states of India) Wikipedia
• Mobilized Servicemen Day (Ukraine) Wikipedia
• San Jacinto Day (Nicaragua) Wikipedia

Sources

• Wikipedia — “September 14” — events, births, deaths and observances (text under CC BY-SA 4.0) (checked 2026-10-15)
• Wikipedia — “Selected anniversaries/September 14” — the anniversaries editors chose for the date and the article each one is about (checked 2026-10-15)
• Wikidata — in how many language editions each entry's own article exists, used to fill the lists (CC0) (checked 2026-10-15)
• vacanza/holidays (open-source holiday rules, MIT licence) — holiday rules used to build the lists (checked 2026-10-15)

The events, births, deaths and observances above are from the English Wikipedia article “September 14” and the articles it links to (authors and history), retrieved 2026-10-15 through the Wikimedia “On this day” feed. They are licensed under CC BY-SA 4.0; this selection is shared under the same licence. Every anniversary that Wikipedia's editors selected for September 14 stays on the list; the remaining places, up to 26 events, 22 births and 14 deaths, go to the entries whose own article — about the event itself, or else the person or thing it is about — appears in the most language editions (counted from Wikidata); an article about a person or thing, which covers far more than one day, counts half. An entry with no article of its own counts, also at half, by the least covered article it links, and one that links only places counts for nothing. Each list runs by year, and the wording is unchanged apart from removing references to pictures, audio and video.