About December 11
December 11, 2025 is the 345th day of the year 2025 in the Gregorian calendar. There are 20 days remaining until the end of this year. The day of the week is Thursday.
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Sagittarius is the sun sign of a person born on this day. Turquoise is the modern birthstone for this month. Onyx is the mystical birthstone from Tibetan origin that dates back over a thousand years.
According to the lunisolar Chinese calendar, there are 68 days remaining before the start of the next Chinese New Year.
What Happened On December 11
- 969 –Byzatine Emperor Nikephoros II is assassinated by his wife Theofano and her lover, the later Emperor John I Tzimiskes.
- 1282 –Llywelyn the Last, the last native Prince of Wales, is killed at Cilmeri, near Builth Wells, south Wales.
- 1602 –A surprise attack by forces under the command of the Duke of Savoy and his brother-in-law, Philip III of Spain, is repelled by the citizens of Geneva.
- 1792 –French Revolution: King Louis XVI of France is put on trial for treason by the National Convention.
- 1868 –Brazilians defeat Paraguayans at the Battle of Avaí during the War of the Triple Alliance.
- 1925 –Roman Catholic papal encyclical Quas Primas introduces the Feast of Christ the King.
- 1927 –Guangzhou Uprising: Communist militia and worker Red Guards launch an uprising in the Chinese city of Guangzhou, taking over most of the city and announcing the formation of a Guangzhou Soviet.
- 1931 –The British Parliament enacts the Statute of Westminster 1931, establishing legislative equality between the self-governing dominions of the Commonwealth of Australia, the Dominion of Canada, the Irish Free State, Dominion of Newfoundland, the Dominion of New Zealand, and the Union of South Africa.
- 1936 –Abdication Crisis: Edward VIII’s abdication as King of the United Kingdom of Great Britain and Northern Ireland, the British Dominions beyond the Seas, and Emperor of India becomes effective.
- 1937 –Second Italo-Abyssinian War: Italy leaves the League of Nations.
- 1960 –French forces crack down in a violent clash with protesters in French Algeria during a visit by French president Charles de Gaulle.
- 1964 –Che Guevara speaks at the United Nations General Assembly in New York City.
- 1981 –El Mozote massacre: Armed forces in El Salvador kill an estimated 900 civilians in an anti-guerrilla campaign during the Salvadoran Civil War.
- 1993 –Forty-eight people are killed when a block of the Highland Towers collapses near Kuala Lumpur, Malaysia.
- 1994 –A bomb explodes on Philippine Airlines Flight 434, en route from Manila to Tokyo, killing one. The captain is able to safely land the plane.
- 1994 –First Chechen War: Russian President Boris Yeltsin orders Russian troops into Chechnya.
- 1998 –Thai Airways Flight 261 crashes near Surat Thani Airport, killing 101. The pilot flying the Thai Airways Airbus A310-300 is thought to have suffered spatial disorientation.
- 2001 –The People’s Republic of China joins the World Trade Organization.
- 2005 –The Buncefield Oil Depot catches fire in Hemel Hempstead, England.
- 2007 –Two car bombs explode at the Constitutional Court building in Algiers and the United Nations office. An estimated 45 people are killed in the bombings.
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