January 19 » Bolle Willum Luxdorph records in his diary that a mail bomb, possibly the world's first, has severely injured the Danish Colonel Poulsen, residing at Børglum Abbey.
January 19 » John Wilkes is expelled from the British House of Commons for seditious libel.
February 15 » The city of St. Louis is established in Spanish Louisiana (now in Missouri, USA).
September 7 » Election of Stanisław August Poniatowski as the last ruler of the Polish–Lithuanian Commonwealth.
Day of marriage December 9, 1780
The temperature on December 9, 1780 was about 4.0 °C. Wind direction mainly northwest. Weather type: omtrent helder. Source: KNMI
March 14 » American Revolutionary War: Spanish forces capture Fort Charlotte in Mobile, Alabama, the last British frontier post capable of threatening New Orleans.
September 23 » American Revolution: British Major John André is arrested as a spy by American soldiers exposing Benedict Arnold's change of sides.
October 2 » American Revolutionary War: John André, a British Army officer, is hanged as a spy by the Continental Army.
October 7 » American Revolutionary War: American militia defeat royalist irregulars led by British major Patrick Ferguson in South Carolina.
October 10 » The Great Hurricane of 1780 kills 20,000–30,000 in the Caribbean.
November 9 » American Revolutionary War: In the Battle of Fishdam Ford a force of British and Loyalist troops fail in a surprise attack against the South Carolina Patriot militia under Brigadier General Thomas Sumter.
When copying data from this family tree, please include a reference to the origin: W.J. Oving, "Family tree Oving", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-oving/I36356.php : accessed February 4, 2026), "Johanna Harmina MENSINK (-< 1792)".
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