February 20 » The Postal Service Act, establishing the United States Post Office Department, is signed by United States President George Washington.
April 28 » France invades the Austrian Netherlands (present day Belgium and Luxembourg), beginning the French Revolutionary Wars.
August 16 » Maximilien de Robespierre presents the petition of the Commune of Paris to the Legislative Assembly, which demanded the formation of a revolutionary tribunal.
September 2 » During what became known as the September Massacres of the French Revolution, rampaging mobs slaughter three Roman Catholic bishops, more than two hundred priests, and prisoners believed to be royalist sympathizers.
October 13 » In Washington, D.C., the cornerstone of the United States Executive Mansion (known as the White House since 1818) is laid.
December 11 » French Revolution: King Louis XVI of France is put on trial for treason by the National Convention.
Day of death December 31, 1864
The temperature on December 31, 1864 was about -1.5 °C. There was 0.1 mm of rain. The air pressure was 1 kgf/m2 and came mainly from the southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 100%. Source: KNMI
In The Netherlands , there was from February 1, 1862 to February 10, 1866 the cabinet Thorbecke II, with Mr. J.R. Thorbecke (liberaal) as prime minister.
April 10 » Archduke Maximilian of Habsburg is proclaimed emperor of Mexico during the French intervention in Mexico.
May 7 » American Civil War: The Army of the Potomac, under General Ulysses S. Grant, breaks off from the Battle of the Wilderness and moves southwards.
August 18 » American Civil War: Battle of Globe Tavern: Union forces try to cut a vital Confederate supply-line into Petersburg, Virginia, by attacking the Wilmington and Weldon Railroad.
October 7 » American Civil War: A US Navy ship captures a Confederate raider in a Brazilian seaport.
November 11 » American Civil War: General William Tecumseh Sherman begins burning Atlanta to the ground in preparation for his march to the sea.
November 29 » American Civil War: Battle of Spring Hill: The Confederate Army of Tennessee misses an opportunity to crush the Army of the Ohio.
When copying data from this family tree, please include a reference to the origin: Charles Olson, "Olson's Tree", database, Genealogy Online (https://www.genealogieonline.nl/olsons-tree/P12748.php : accessed January 6, 2026), "George Mifflin Dallas (1792-1864)".
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