About December 17
December 17, 2025 is the 351st day of the year 2025 in the Gregorian calendar. There are 14 days remaining until the end of this year. The day of the week is Wednesday.
You can browse the full year calendar in case you need it.
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Sagittarius is the sun sign of a person born on this day. Turquoise is the modern birthstone for this month. Onyx is the mystical birthstone from Tibetan origin that dates back over a thousand years.
According to the lunisolar Chinese calendar, there are 62 days remaining before the start of the next Chinese New Year.
What Happened On December 17
- 942 –Assassination of William I of Normandy.
- 1583 –Cologne War: Forces under Ernest of Bavaria defeats the troops under Gebhard Truchsess von Waldburg at the Siege of Godesberg.
- 1718 –Great Britain declares war on Spain.
- 1807 –France issues the Milan Decree, which confirms the Continental System.
- 1819 –Simón Bolívar declares the independence of the Republic of Gran Colombia in Angostura (now Ciudad Bolívar in Venezuela).
- 1862 –American Civil War: General Ulysses S. Grant issues General Order No. 11, expelling Jews from Tennessee, Mississippi, and Kentucky.
- 1865 –First performance of the Unfinished Symphony by Franz Schubert.
- 1903 –The Wright Brothers make their first powered and heavier-than-air flight in the Wright Flyer at Kitty Hawk, North Carolina.
- 1926 –Antanas Smetona assumes power in Lithuania as the 1926 coup d'état is successful.
- 1928 –Indian revolutionaries Bhagat Singh, Sukhdev Thapar and Shivaram Rajguru assassinate British police officer James Saunders in Lahore, Punjab to avenge the death of Lala Lajpat Rai at the hands of the police. The three were executed in 1931.
- 1939 –World War II: Battle of the River Plate – The Admiral Graf Spee is scuttled by Captain Hans Langsdorff outside Montevideo.
- 1941 –World War II: Japanese forces land in Northern Borneo.
- 1944 –World War II: Battle of the Bulge – Malmedy massacre – American 285th Field Artillery Observation Battalion POWs are shot by Waffen-SS Kampfgruppe Peiper.
- 1957 –The United States successfully launches the first Atlas intercontinental ballistic missile at Cape Canaveral, Florida.
- 1960 –1960 Munich Convair 340 crash: 20 passengers and crew on board as well as 32 people on the ground are killed.
- 1961 –Fire in the Gran Circus American in the city of Niterói, Rio de Janeiro, Brazil, the biggest tragedy in circus history.
- 1967 –Prime Minister of Australia Harold Holt disappears while swimming near Portsea, Victoria and is presumed drowned.
- 1983 –The IRA bombs Harrods Department Store in London, killing six people.
- 2003 –SpaceShipOne flight 11P, piloted by Brian Binnie, makes its first supersonic flight.
- 2005 –Anti-WTO protesters riot in Wan Chai, Hong Kong
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