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.
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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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