About December 6
December 6, 2025 is the 340th day of the year 2025 in the Gregorian calendar. There are 25 days remaining until the end of this year. The day of the week is Saturday.
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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 73 days remaining before the start of the next Chinese New Year.
What Happened On December 6
- 1240 –Mongol invasion of Rus': Kiev under Danylo of Halych and Voivode Dmytro falls to the Mongols under Batu Khan.
- 1704 –Battle of Chamkaur.
- 1865 –The Thirteenth Amendment to the United States Constitution is ratified, banning slavery.
- 1877 –The first edition of the Washington Post is published.
- 1884 –The Washington Monument in Washington D.C. is completed.
- 1897 –London becomes the world’s first city to host licensed taxicabs.
- 1907 –A coal mine explosion at Monongah, West Virginia kills 362 workers.
- 1922 –One year to the day after the signing of the Anglo-Irish Treaty, the Irish Free State comes into existence.
- 1947 –The Everglades National Park in Florida is dedicated.
- 1956 –A violent water polo match between Hungary and the USSR takes place during the 1956 Summer Olympics in Melbourne, against the backdrop of the 1956 Hungarian Revolution.
- 1957 –Project Vanguard: A launchpad explosion of Vanguard TV3 thwarts the first United States attempt to launch a satellite into Earth orbit.
- 1965 –Pakistan’s Islamic Ideology Advisory Committee recommends that Islamic Studies be made a compulsory subject for Muslim students from primary to graduate level.
- 1967 –Adrian Kantrowitz performed the first human heart transplant in the United States.
- 1973 –The Twenty-fifth Amendment: The United States House of Representatives votes 387 to 35 to confirm Gerald Ford as Vice President of the United States (on November 27, the Senate confirmed him 92 to 3).
- 1977 –South Africa grants independence to Bophuthatswana, although it is not recognized by any other country.
- 1989 –The École Polytechnique Massacre (or Montreal Massacre): Marc Lépine, an anti-feminist gunman, murders 14 young women at the École Polytechnique in Montreal.
- 1991 –In Croatia, forces of the Yugoslav People’s Army bombard Dubrovnik after laying siege to the city since May.
- 1992 –The Babri Mosque in Ayodhya, India is demolished, leading to widespread riots causing the death of over 1500 people.
- 2005 –Several villagers are shot dead during protests in Dongzhou, China.
- 2008 –The 2008 Greek riots break out upon the killing of a 15-year-old boy, Alexandros Grigoropoulos, by a police officer.
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