About September 12

September 12, 2025 is the 255th day of the year 2025 in the Gregorian calendar. There are 110 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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Virgo is the sun sign of a person born on this day. Sapphire is the modern birthstone for this month. Agate is the mystical birthstone from Tibetan origin that dates back over a thousand years.

According to the lunisolar Chinese calendar, there are 158 days remaining before the start of the next Chinese New Year.

What Happened On September 12

  • 372
    Sixteen Kingdoms: Jin Xiaowudi, age 10, succeeds his father Jin Jianwendi as Emperor of the Eastern Jin Dynasty.
  • 1229
    The Aragonese army under the command of James I of Aragon disembarks at Santa Ponça, Majorca, with the purpose of conquering the island.
  • 1683
    Austro-Ottoman War: Battle of Vienna – several European armies join forces to defeat the Ottoman Empire.
  • 1846
    Elizabeth Barrett elopes with Robert Browning.
  • 1847
    Mexican-American War: the Battle of Chapultepec begins.
  • 1848
    Switzerland becomes a Federal state.
  • 1874
    The District of Maple Ridge, British Columbia, Canada is founded.
  • 1890
    Salisbury, Rhodesia, is founded.
  • 1938
    Adolf Hitler demands autonomy and self-determination for the Germans of the Sudetenland region of Czechoslovakia.
  • 1940
    Cave paintings are discovered in Lascaux, France.
  • 1942
    World War II: First day of the Battle of Edson’s Ridge during the Guadalcanal campaign. U.S. Marines protecting Henderson Field on Guadalcanal are attacked by Imperial Japanese Army forces.
  • 1944
    World War II: The liberation of Serbia from Nazi Germany and the Chetniks continues. Bajina Bašta in western Serbia is among those liberated cities. Near Trier, American troops enter Germany for the first time.
  • 1959
    Premiere of Bonanza, the first regularly scheduled TV program presented in color.
  • 1964
    Canyonlands National Park is designated as a National Park.
  • 1966
    Gemini 11, the penultimate mission of NASA’s Gemini program, and the current human altitude record holder (except for the Apollo lunar missions)
  • 1970
    Palestinian terrorists blow up three hijacked airliners in Jordan, continuing to hold the passengers hostage in various undisclosed locations in Amman.
  • 1974
    Juventude Africana Amilcar Cabral is founded in Guinea-Bissau.
  • 1988
    Hurricane Gilbert devastates Jamaica; it turns towards Mexico’s Yucatán Peninsula 2 days later, causing an estimated $5 billion in damage.
  • 2001
    Ansett Australia, Australia’s first commercial interstate airline, collapses due to increased strain on the international airline industry, leaving 10,000 people unemployed.
  • 2003
    The United Nations lifts sanctions against Libya after that country agreed to accept responsibility and recompense the families of victims in the 1988 bombing of Pan Am Flight 103.

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