About December 1

December 1, 2025 is the 335th day of the year 2025 in the Gregorian calendar. There are 30 days remaining until the end of this year. The day of the week is Monday.

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

What Happened On December 1

  • 1420
    Henry V of England enters Paris.
  • 1640
    End of the Iberian Union: Portugal acclaims as King João IV of Portugal, ending 60 years of personal union of the crowns of Portugal and Spain and the end of the rule of the House of Habsburg (also called the Philippine Dynasty).
  • 1822
    Peter I is crowned Emperor of Brazil.
  • 1824
    United States presidential election, 1824: Since no candidate received a majority of the total electoral college votes in the election, the United States House of Representatives is given the task of deciding the winner in accordance with the Twelfth Amendment to the United States Constitution.
  • 1826
    French philhellene Charles Nicolas Fabvier forces his way through the Turkish cordon and ascends the Acropolis of Athens, which had been under siege.
  • 1862
    In his State of the Union Address President Abraham Lincoln reaffirms the necessity of ending slavery as ordered ten weeks earlier in the Emancipation Proclamation.
  • 1918
    The Kingdom of Iceland becomes a sovereign state, yet remains a part of the Danish kingdom.
  • 1918
    Transylvania unites with Romania, following the incorporation of Bessarabia (March 27) and Bukovina (November 28), thus concluding the Great Union.
  • 1934
    In the Soviet Union, Politburo member Sergei Kirov is shot dead by Leonid Nikolayev at the Communist Party headquarters in Leningrad.
  • 1955
    American Civil Rights Movement: In Montgomery, Alabama, seamstress Rosa Parks refuses to give up her bus seat to a white man and is arrested for violating the city’s racial segregation laws, an incident which leads to the Montgomery Bus Boycott.
  • 1958
    The Our Lady of the Angels School fire in Chicago, Illinois, kills 92 children and three nuns.
  • 1964
    Malawi, Malta and Zambia join the United Nations.
  • 1964
    Vietnam War: U.S. President Lyndon B. Johnson and his top-ranking advisers meet to discuss plans to bomb North Vietnam.
  • 1966
    The first Gävle goat, an annual Swedish Yule Goat tradition, is first erected in Gävle.
  • 1969
    The first legislation to limit aircraft noise levels at airports is introduced in U.S. Federal Air Regulation, Part 36.
  • 1971
    Cambodian Civil War: Khmer Rouge rebels intensify assaults on Cambodian government positions, forcing their retreat from Kompong Thmar and nearby Ba Ray.
  • 1971
    The Indian Army recaptures part of Kashmir occupied forcibly by Pakistan.
  • 1984
    NASA conducts the Controlled Impact Demonstration, wherein an airliner was deliberately crashed in order to test technologies and gather data to help improve survivability of airplane crashes.
  • 1988
    Benazir Bhutto is appointed Prime Minister of Pakistan.
  • 2009
    The Treaty of Lisbon, which amends the Treaty on European Union and the Treaty establishing the European Community, which together comprise the constitutional basis of European Union, comes into effect.

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