About December 12

December 12, 2025 is the 346th day of the year 2025 in the Gregorian calendar. There are 19 days remaining until the end of this year. The day of the week is Friday.

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

What Happened On December 12

  • 627
    Battle of Nineveh: A Byzantine army under Emperor Heraclius defeats Emperor Khosrau II’s Persian forces, commanded by General Rhahzadh.
  • 1781
    American Revolutionary War: Second Battle of Ushant – A Royal Navy squadron, commanded by Rear Admiral Richard Kempenfelt on HMS Victory, defeats a French fleet.
  • 1787
    Pennsylvania becomes the second state to ratify the United States Constitution five days after Delaware became the first.
  • 1870
    Joseph H. Rainey of South Carolina becomes the second black U.S. congressman, the first one being Hiram Revels.
  • 1897
    Belo Horizonte, the first planned city in Brazil, is founded.
  • 1911
    Delhi replaces Calcutta as the capital of India.
  • 1918
    Flag of Estonia is raised atop the Pikk Hermann for the first time.
  • 1935
    Lebensborn Project, a Nazi reproduction program, is founded by Heinrich Himmler.
  • 1937
    USS Panay incident: Japanese aircraft bomb and sink US gunboat USS Panay on the Yangtze River in China.
  • 1939
    HMS Duchess sinks after a collision with HMS Barham off the coast of Scotland with the loss of 124 men.
  • 1941
    World War II: Fifty-four Japanese A6M Zero fighters raid Batangas Field, Philippines. Jesús Villamor and four Filipino fighter pilots fend them off; César Basa is killed.
  • 1941
    World War II: The United Kingdom declares war on Bulgaria. Hungary and Romania declare war on the United States. India declares war on Japan.
  • 1941
    World War II: USMC F4F “Wildcats” sink the first 4 major Japanese ships off Wake Island.
  • 1964
    Prime Minister Jomo Kenyatta becomes the first President of the Republic of Kenya.
  • 1979
    A major earthquake and tsunami kill 259 people in Colombia.
  • 1979
    President of Pakistan, Zia-ul-Haq, confers Nishan-e-Imtiaz on Nobel laureate Dr Abdus Salam.
  • 1979
    The unrecognised state of Zimbabwe Rhodesia returns to British control and resumes using the name Southern Rhodesia.
  • 1982
    Women’s peace protest at Greenham Common – 30,000 women hold hands and form a human chain around the 14.5 km perimeter fence.
  • 1985
    Arrow Air Flight 1285 crashes after takeoff in Gander, Newfoundland, killing 256, including 236 members of the United States Army’s 101st Airborne Division.
  • 1991
    Russian Federation gains independence from the USSR.

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