February 6 » New York became the third state to ratify the Articles of Confederation.
June 18 » American Revolutionary War: British troops abandon Philadelphia.
July 3 » American Revolutionary War: Iroquois allied to Britain kill 360 people in the Wyoming Valley massacre.
September 17 » The Treaty of Fort Pitt is signed. It is the first formal treaty between the United States and a Native American tribe.
September 19 » The Continental Congress passes the first United States federal budget.
November 11 » Cherry Valley massacre: Loyalists and Seneca Indian forces attack a fort and village in eastern New York during the American Revolutionary War, killing more than forty civilians and soldiers.
Day of death October 21, 1780
The temperature on October 21, 1780 was about 8.0 °C. There was 48 mm of rainWind direction mainly northwest. Weather type: regen zeer betrokken. Source: KNMI
January 16 » American Revolutionary War: Battle of Cape St. Vincent.
April 16 » Franz Friedrich Wilhelm von Fürstenberg founds the University of Münster.
May 13 » The Cumberland Compact is signed by leaders of the settlers in the Cumberland River area of what would become the U.S. state of Tennessee, providing for democratic government and a formal system of justice.
May 19 » New England's Dark Day, an unusual darkening of the day sky, was observed over the New England states and parts of Canada.
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.
When copying data from this family tree, please include a reference to the origin: Joke Koster, "Family tree Griffioen Jellema Friese Adel", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-griffioen-koster/I279515.php : accessed May 11, 2024), "Petronella Ulkes (± 1755-1780)".
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