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

  • 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.
  • 1827
    Bellini’s third opera Il pirata is premiered at Teatro alla Scala di Milano
  • 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.
  • 1930
    ratifications exchanged in London, for the first London Naval Treaty signed in April modifying the 1925 Washington Naval Treaty and the arms limitation treaty’s modified provisions go into effect immediately; further limiting the expensive naval arms race between its five signatories.
  • 1948
    Léopold Sédar Senghor founds the Senegalese Democratic Bloc.
  • 1954
    Benjamin O. Davis Jr. becomes the first African-American general in the United States Air Force.
  • 1962
    Major Rudolf Anderson of the United States Air Force becomes the only direct human casualty of the Cuban Missile Crisis when his U-2 reconnaissance airplane is shot down in Cuba by a Soviet-supplied SA-2 Guideline surface-to-air missile.
  • 1971
    The Democratic Republic of the Congo is renamed Zaire.
  • 1981
    The Soviet submarine U 137 runs aground on the east coast of Sweden.
  • 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
    The U.S. prison population tops 1 million for the first time in American history.
  • 1995
    Former Prime Minister of Italy Bettino Craxi is convicted in absentia of corruption.
  • 1995
    Latvia applies for membership in the European Union.
  • 1999
    Gunmen open fire in the Armenian Parliament, killing Prime Minister Vazgen Sargsyan, Parliament Chairman Karen Demirchyan, and 6 other members.
  • 2005
    Riots begin in Paris after the deaths of two Muslim teenagers.
  • 2005
    The SSETI Express micro-satellite is successfully launched from the Plesetsk Cosmodrome.
  • 2011
    The Royal Australian Navy announces that they discovered the wreck of a World War II submarine in Simpson Harbour, Papua New Guinea during Operation RENDER SAFE - it is likely to be Japanese.

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