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.

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 73 days remaining before the start of the next Chinese New Year.

What Happened On December 6

  • 1060 –
    Béla I of Hungary is crowned king of Hungary.
  • 1240 –
    Mongol invasion of Rus': Kiev under Danylo of Halych and Voivode Dmytro falls to the Mongols under Batu Khan.
  • 1790 –
    The U.S. Congress moves from New York City to Philadelphia, Pennsylvania.
  • 1865 –
    The Thirteenth Amendment to the United States Constitution is ratified, banning slavery.
  • 1877 –
    The first edition of the Washington Post is published.
  • 1907 –
    A coal mine explosion at Monongah, West Virginia kills 362 workers.
  • 1916 –
    World War I: The Central Powers capture Bucharest.
  • 1917 –
    World War I: USS Jacob Jones is the first American destroyer to be sunk by enemy action when it is torpedoed by German submarine ship SM.
  • 1921 –
    The Anglo-Irish Treaty is signed in London by British and Irish representatives.
  • 1922 –
    One year to the day after the signing of the Anglo-Irish Treaty, the Irish Free State comes into existence.
  • 1928 –
    The government of Colombia sends military forces to suppress a month-long strike by United Fruit Company workers, resulting in an unknown number of deaths.
  • 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.
  • 1969 –
    Meredith Hunter is killed by the Hells Angels during a The Rolling Stones’s concert at the Altamont Speedway in California.
  • 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).
  • 1988 –
    The Australian Capital Territory is granted self-government.
  • 1997 –
    A Russian Antonov An-124 cargo plane crashes into an apartment complex near Irkutsk, Siberia, killing 67.
  • 2005 –
    An Iranian Air Force C-130 military transport aircraft crashes into a ten-floor apartment building in a residential area of Tehran, killing all 84 on board and 44 more civilians.
  • 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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