About September 13
September 13, 2025 is the 256th day of the year 2025 in the Gregorian calendar. There are 109 days remaining until the end of this year. The day of the week is Saturday.
You can browse the full year calendar in case you need it.
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Virgo is the sun sign of a person born on this day. Sapphire is the modern birthstone for this month. Agate is the mystical birthstone from Tibetan origin that dates back over a thousand years.
According to the lunisolar Chinese calendar, there are 157 days remaining before the start of the next Chinese New Year.
What Happened On September 13
- 585 BC –Lucius Tarquinius Priscus, king of Rome, celebrates a triumph for his victories over the Sabines, and the surrender of Collatia.
- 1229 –Ögedei Khan is proclaimed Khagan of the Mongol Empire in Kodoe Aral, Khentii: Mongolia.
- 1584 –San Lorenzo del Escorial Palace in Madrid is finished.
- 1609 –Henry Hudson reaches the river that would later be named after him – the Hudson River.
- 1743 –Great Britain, Austria and Savoy-Sardinia sign the Treaty of Worms.
- 1759 –Battle of the Plains of Abraham: British defeat French near Quebec City in the Seven Years’ War, known in the United States as the French and Indian War.
- 1791 –King Louis XVI of France accepts the new constitution.
- 1812 –War of 1812: A supply wagon sent to relieve Fort Harrison is ambushed in the Attack at the Narrows.
- 1847 –Mexican-American War: Six teenage military cadets known as Niños Héroes die defending Chapultepec Castle in the Battle of Chapultepec. American troops under General Winfield Scott capture Mexico City in the Mexican-American War.
- 1898 –Hannibal Goodwin patents celluloid photographic film.
- 1906 –First flight of a fixed-wing aircraft in Europe.
- 1922 –The final act of the Greco-Turkish War, the Great Fire of Smyrna, commences.
- 1922 –The temperature at 'Aziziya, Libya reaches a world record 57.8 °C.
- 1923 –Following a military coup in Spain, Miguel Primo de Rivera takes over, setting up a dictatorship.
- 1935 –Rockslide near Whirlpool Rapids Bridge ends the International Railway (New York – Ontario).
- 1956 –IBM introduces the first computer disk storage unit, the RAMAC 305.
- 1956 –The dike around the Dutch polder East Flevoland is closed.
- 1964 –South Vietnamese Generals Lam Van Phat and Duong Van Duc fail in a coup attempt against General Nguyen Khanh.
- 1989 –Largest anti-Apartheid march in South Africa, led by Desmond Tutu.
- 1994 –Ulysses probe passes the Sun’s south pole.
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