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.
Is this your birthday? Are you not curious to learn who shares your special day? Find out the October 20 famous birthdays and expand your knowledge today. (Sponsored link)
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.
- 1740 –Maria Theresa takes the throne of Austria. France, Prussia, Bavaria and Saxony refuse to honour the Pragmatic Sanction and the War of the Austrian Succession begins.
- 1781 –Patent of Toleration, providing limited freedom of worship, is approved in Habsburg Monarchy.
- 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.
- 1883 –Peru and Chile sign the Treaty of Ancón, by which the Tarapacá province is ceded to the latter, bringing an end to Peru’s involvement in the War of the Pacific.
- 1917 –The Military Revolutionary Committee of the Petrograd Soviet, in charge of preparation and carrying out the Russian Revolution, holds its first meeting.
- 1939 –Pope Pius XII publishes his first major encyclical entitled Summi Pontificatus.
- 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 –General Douglas MacArthur fulfills his promise to return to the Philippines when he commands an Allied assault on the islands, reclaiming them from the Japanese during the Second World War.
- 1944 –The Soviet Army and Yugoslav Partisans liberate Belgrade, the capital of Yugoslavia
- 1947 –The House Un-American Activities Committee begins its investigation into Communist infiltration of Hollywood, resulting in a blacklist that prevents some from working in the industry for years.
- 1947 –United States of America and Pakistan establish diplomatic relations for the first time.
- 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.
- 1968 –Former First Lady Jacqueline Kennedy marries Greek shipping tycoon Aristotle Onassis.
- 1970 –Siad Barre declares Somalia a socialist state.
- 1971 –The Nepal Stock Exchange collapses.
- 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 –A 6.8 Mw earthquake strikes the Uttarkashi region of India, killing more than 1,000 people.
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