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.
You can browse the full year calendar in case you need it.
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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.
- 1815 –the U.S. Senate created a select committee on finance and a uniform national currency, predecessor of the United States Senate Committee on Finance.
- 1868 –Brazilians defeat Paraguayans at the Battle of Avaí during the War of the Triple Alliance.
- 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.
- 1937 –Second Italo-Abyssinian War: Italy leaves the League of Nations.
- 1946 –The United Nations International Children’s Emergency Fund (UNICEF) is established.
- 1948 –The United Nations passes General Assembly Resolution 194, which established and defined the role of the United Nations Conciliation Commission as an organization to facilitate peace in the British Mandate for Palestine.
- 1962 –Arthur Lucas, convicted of murder, is the last person to be executed in Canada.
- 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 –First Chechen War: Russian President Boris Yeltsin orders Russian troops into Chechnya.
- 1997 –The Kyoto Protocol opens for signature.
- 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 –Cronulla riots: Thousands of White Australians demonstrate against ethnic violence resulting in a riot against anyone thought to be Lebanese (and many who are not) in Cronulla Sydney. These are followed up by retaliatory ethnic attacks on Cronulla.
- 2005 –The Buncefield Oil Depot catches fire in Hemel Hempstead, England.
- 2006 –Felipe Calderon Hinojosa, the president of Mexico, launches a military-led offensive to put down the drug cartel violence in the state of Michoacan. This effort is often regarded as the first event in the Mexican Drug War.
- 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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