On this day: 23 September
Events, births and deaths on 23 September. Every date is checked against Wikidata.
Years ago today
1 year ago2025
- Deaths · Claudia Cardinale
- Events · 2025 Hualien Matai'an Creek Barrier Lake disaster events
10 years ago2016
Nothing recorded for that year.
100 years ago1926
- Births · John Coltrane
- Births · André Cassagnes
1000 years ago1026
Within 100 years of that
- 1122 · Events · Concordat of Worms
- 965 · Deaths · Al-Mutanabbi
Events · 26
- 1122(Julian date)Concordat of Worms — agreement between Pope Calixtus II and Holy Roman Emperor Henry V on September 23, 1122 near the city of Worms
- 1338Battle of Arnemuiden — 1338 battle of the Hundred Years' War
- 1409(Julian date)Battle of Kherlen — 1409 battle between Northern Yuan and Ming dynasties
- 1459(Julian date)Battle of Blore Heath — 1459 battle in the English Wars of the Roses
- 1642Battle of Powick Bridge — 1642 first major cavalry engagement of the English Civil War
- 1779Battle of Flamborough Head — 1779 naval battle
- 1803Battle of Assaye — 1803 battle of the Second Anglo-Maratha War
- 1821Siege of Tripolitsa — 1821 siege and massacre of Muslims and Jews in Tripolitsa
- 1868Grito de Lares — first revolt against Spanish rule in Puerto Rico
- 1879Macedo-Romanian Cultural Society — Aromanian cultural organization in Romania
- 1889Nintendo — Japanese multinational video game and consumer electronics company
- 1918Battle of Haifa — 1918 battle during the First World War
- 1942Actions along the Matanikau — battles during the Guadalcanal campaign in WWII
- 1943Italian Social Republic — 1943–1945 German puppet state in northern Italy
- 1950Battle of Hill 282 — 1950 battle of the Korean War
- 1973September 1973 Argentine general election — review of the election
- 1983Gulf Air Flight 771 — flight which crashed after a bomb exploded on 23 September 1983
- 1997U2 concert in Sarajevo — 1997 U2 concert in Sarajevo, Bosnia and Herzegovina
- 1999Celebrate Bisexuality Day — September 23
- 1999Qantas Flight 1 — 1999 aviation incident involving a Boeing 747-400
- 2001
- 2002Mozilla Firefox — free and open source web browser
- 2008Kauhajoki school shooting — school shooting in Kauhajoki, Finland, on 23 September 2008
- 20222022 annexation referendums in Russian-occupied Ukraine — 2022 referendum in Russian-occupied Ukraine
- 2024September 2024 Israeli attacks against Lebanon — mutual airstrikes and an Israeli ground offensive against pro-Iranian militias in Lebanon (23 September 2024 – ongoing)
- 20252025 Hualien Matai'an Creek Barrier Lake disaster events — 2025 Barrier Lake disaster in Taiwan
Births · 60
- 63 BCE(Julian date)Augustus — first emperor of the Roman Empire and founder of the Julio-Claudian dynasty
- 1158(Julian date)Geoffrey II — English noble, Duke of Brittany jure uxoris
- 1161(Julian date)Takakura — Emperor of Japan
- 1215(Julian date)Kublai Khan — founding emperor of the Yuan dynasty, grandson of Genghis Khan (1215–1294)
- 1713Ferdinand VI of Spain — king of Spain, lived (1713-1759)
- 1740Go-Sakuramachi — empress regnant of Japan (1740-1813)
- 1771Emperor Kōkaku — Emperor of Japan from 1780 to 1817
- 1791Johann Franz Encke — German astronomer (1791–1865)
- 1791Theodor Körner — German poet (1791–1813)
- 1819Hippolyte Fizeau — French physicist (1819–1896)
- 1838Victoria Woodhull — American suffragist, editor (1838-1927)
- 1861Robert Bosch — German industrialist, inventor, engineer (1861-1942)
- 1865Suzanne Valadon — French painter (1865—1938)
- 1865Emma Orczy — Hungarian-born British novelist and playwright (1865-1947)
- 1869Typhoid Mary — infected houseworker in New York City
- 1880John Boyd Orr — Scottish nutritionist, Director-General of the United Nations Food and Agriculture Organization (1880-1971)
- 1889Walter Lippmann — American journalist and political commentator (1889–1974)
- 1890Friedrich Paulus — German general (1890–1957)
- 1897Paul Delvaux — Belgian painter (1897-1994)
- 1897Walter Pidgeon — Canadian actor (1897-1984)
- 1901Jaroslav Seifert — Czechoslovak poet, Nobel prize laureate (1901–1986)
- 1907Anne Desclos — French journalist and novelist best known for her erotic novel Story of O
- 1914Omar Ali Saifuddien III of Brunei — Sultan of Brunei (1914-1986)
- 1915Clifford Shull — American physicist (1915–2001)
- 1916Aldo Moro — Italian politician (1916-1978)
Deaths · 60
- 788(Julian date)Ælfwald I — Northumbrian king
- 965(Julian date)Al-Mutanabbi — Arab poet (c. 915 – 965)
- 1241(Julian date)Snorri Sturluson — Icelandic historian, poet and politician (AD 1179–1241)
- 1253Wenceslaus I of Bohemia — King of Bohemia from 1230 to 1253
- 1267(Julian date)Beatrice of Provence — Countess of Provence and Forcalquier (c.1229–1267)
- 1390(Julian date)John I, Duke of Lorraine — Duke of Lorraine
- 1448Adolph I — Count of Cleves, raised to Duke of Cleves
- 1461Charles, Prince of Viana — King of Navarre
- 1508(Julian date)Beatrice of Naples — Queen Consort of Hungary and Bohemia
- 1535Catherine of Saxe-Lauenburg — Queen consort of Sweden
- 1571(Julian date)John Jewel — English clergyman and bishop (1522-1571)
- 1605Pontus de Tyard — French poet and bishop
- 1675Valentin Conrart — French author, and founder of the Académie française
- 1728Christian Thomasius — German philosopher (1655-1728)
- 1738Herman Boerhaave — Dutch botanist, chemist, humanist, and physician (1668–1738)
- 1835Vincenzo Bellini — Italian opera composer (1801–1835)
- 1850José Gervasio Artigas — Uruguayan military leader during the War for Independence
- 1851Émilie Gamelin — French Canadian social worker and Catholic sister
- 1870Prosper Mérimée — French writer, archaeologist and historian (1803–1870)
- 1871Louis-Joseph Papineau — politician, lawyer, and the landlord of the seigneurie de la Petite-Nation
- 1877Urbain Le Verrier — French astronomer (1811-1877)
- 1888François Achille Bazaine — French general (1811-1888)
- 1889Wilkie Collins — British writer (1824-1889)
- 1917Werner Voß — German flying ace (1897–1917)
- 1929Richard Adolf Zsigmondy — Austrian chemist (1865-1929)
Dates verified against Wikidata (CC0). Titles and descriptions come from Wikidata.