About October 27

October 27, 2025 is the 300th day of the year 2025 in the Gregorian calendar. There are 65 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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Scorpio is the sun sign of a person born on this day. Opal is the modern birthstone for this month. Jasper is the mystical birthstone from Tibetan origin that dates back over a thousand years.

According to the lunisolar Chinese calendar, there are 113 days remaining before the start of the next Chinese New Year.

What Happened On October 27

  • 312
    Constantine the Great is said to have received his famous Vision of the Cross.
  • 1682
    Philadelphia, Pennsylvania is founded.
  • 1795
    The United States and Spain sign the Treaty of Madrid, which establishes the boundaries between Spanish colonies and the U.S.
  • 1806
    The French Army enters Berlin.
  • 1810
    United States annexes the former Spanish colony of West Florida.
  • 1838
    Missouri governor Lilburn Boggs issues the Extermination Order, which orders all Mormons to leave the state or be exterminated.
  • 1914
    World War I: The British super-dreadnought battleship HMS Audacious (23,400 tons), is sunk off Tory Island, north-west of Ireland, by a minefield laid by the armed German merchant-cruiser Berlin.
  • 1922
    A referendum in Rhodesia rejects the country’s annexation to the South African Union.
  • 1924
    The Uzbek SSR is founded in the Soviet Union.
  • 1953
    British nuclear test Totem 2 is carried out at Emu Field, South Australia.
  • 1954
    Benjamin O. Davis Jr. becomes the first African-American general in the United States Air Force.
  • 1958
    Iskander Mirza, the first President of Pakistan, is deposed in a bloodless coup d'état by General Ayub Khan, who had been appointed the enforcer of martial law by Mirza 20 days earlier.
  • 1962
    A plane carrying Enrico Mattei, post-war Italian administrator, crashes in mysterious circumstances.
  • 1981
    The Soviet submarine U 137 runs aground on the east coast of Sweden.
  • 1986
    The British government suddenly deregulates financial markets, leading to a total restructuring of the way in which they operate in the country, in an event now referred to as the Big Bang.
  • 1988
    Ronald Reagan decides to tear down the new U.S. Embassy in Moscow because of Soviet listening devices in the building structure.
  • 1991
    Turkmenistan achieves independence from the Soviet Union.
  • 1992
    United States Navy radioman Allen R. Schindler, Jr. is brutally murdered by shipmate Terry M. Helvey for being gay, precipitating first military, then national, debate about gays in the military that resulted in the United States “Don't ask, don't tell” military policy.
  • 1994
    Gliese 229B is the first Substellar Mass Object to be unquestionably identified.
  • 2005
    The SSETI Express micro-satellite is successfully launched from the Plesetsk Cosmodrome.

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