February 29 » King Alaungpaya founds Konbaung Dynasty, the last dynasty of Burmese monarchy.
April 20 » Start of Konbaung–Hanthawaddy War, a new phase in the Burmese Civil War (1740–57).
June 15 » Benjamin Franklin proves that lightning is electricity (traditional date, the exact date is unknown).
September 2 » Great Britain, along with its overseas possessions, adopts the Gregorian calendar.
September 14 » The British Empire adopts the Gregorian calendar, skipping eleven days (the previous day was September 2).
Day of death February 9, 1780
The temperature on February 9, 1780 was about 2.0 °C. There was 4 mm of rainWind direction mainly south-southeast. Weather type: betrokken regen. Source: KNMI
January 16 » American Revolutionary War: Battle of Cape St. Vincent.
March 17 » American Revolution: George Washington grants the Continental Army a holiday "as an act of solidarity with the Irish in their fight for independence".
May 12 » American Revolutionary War: In the largest defeat of the Continental Army, Charleston, South Carolina is taken by British forces.
September 11 » American Revolutionary War: Sugarloaf Massacre: A small detachment of militia from Northampton County are attacked by Native Americans and Loyalists near Little Nescopeck Creek.
October 7 » American Revolutionary War: American militia defeat royalist irregulars led by British major Patrick Ferguson in South Carolina.
November 4 » The Rebellion of Túpac Amaru II against Spanish rule in the Viceroyalty of Peru begins.
When copying data from this family tree, please include a reference to the origin: Jan van Ham, "Family tree Hamier", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-hamier/I130.php : accessed February 6, 2026), "Jenneke Jans Driesen (1726-1780)".
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