About October 20

October 20, 2025 is the 293rd day of the year 2025 in the Gregorian calendar. There are 72 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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Libra 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 120 days remaining before the start of the next Chinese New Year.

What Happened On October 20

  • 1548
    The city of Nuestra Señora de La Paz (Our Lady of Peace) is founded by Alonso de Mendoza by appointment of the king of Spain and Holy Roman Emperor, Charles V.
  • 1818
    The Convention of 1818 signed between the United States and the United Kingdom which, among other things, settled the Canada – United States border on the 49th parallel for most of its length.
  • 1827
    Battle of Navarino – a combined Turkish and Egyptian armada is defeated by British, French, and Russian naval force in the port of Navarino in Pylos, Greece.
  • 1873
    Yale, Princeton, Columbia, and Rutgers universities draft the first code of American football rules.
  • 1904
    Chile and Bolivia sign the Treaty of Peace and Friendship, delimiting the border between the two countries.
  • 1917
    The Military Revolutionary Committee of the Petrograd Soviet, in charge of preparation and carrying out the Russian Revolution, holds its first meeting.
  • 1935
    The Long March ends.
  • 1939
    Pope Pius XII publishes his first major encyclical entitled Summi Pontificatus.
  • 1941
    World War II: Thousands of civilians in Kragujevac in German-occupied Serbia are killed in the Kragujevac massacre.
  • 1943
    The cargo vessel Sinfra is attacked by Allied aircraft at Suda Bay, Crete, and sunk. 2,098 Italian prisoners of war drown with it.
  • 1944
    Liquid natural gas leaks from storage tanks in Cleveland, then explodes; the explosion and resulting fire level 30 blocks and kill 130.
  • 1944
    The Soviet Army and Yugoslav Partisans liberate Belgrade, the capital of Yugoslavia
  • 1951
    The “Johnny Bright Incident” occurs in Stillwater, Oklahoma
  • 1952
    Governor Evelyn Baring declares a state of emergency in Kenya and begins arresting hundreds of suspected leaders of the Mau Mau Uprising, including Jomo Kenyatta, the future first President of Kenya.
  • 1961
    The Soviet Union performs the first armed test of a submarine-launched ballistic missile, launching an R-13 from a Golf class submarine.
  • 1976
    The ferry George Prince‘’is struck by a ship while crossing the Mississippi River between Destrehan and Luling, Louisiana. Seventy-eight passengers and crew die and only 18 people aboard the ferry survive.
  • 1977
    A plane carrying Lynyrd Skynyrd crashes in Mississippi, killing lead singer Ronnie Van Zant and guitarist Steve Gaines along with backup singer Cassie Gaines, the road manager, pilot, and co-pilot.
  • 1982
    During the UEFA Cup match between FC Spartak Moscow and HFC Haarlem, 66 people are crushed to death in the Luzhniki disaster.
  • 1991
    The Oakland Hills firestorm kills 25 and destroys 3,469 homes and apartments, causing more than $2 billion in damage.
  • 2011
    The former leader of Libya, Muammar Gaddafi, and his son Moatassem Gaddafi are killed shortly after the battle of Sirte (2011) while in the custody of NTC fighters.

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