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.
August 16 » American Revolutionary War: Battle of Camden: The British defeat the Americans near Camden, South Carolina.
September 21 » American Revolutionary War: Benedict Arnold gives the British the plans to West Point.
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.
Christening day April 2, 1780
The temperature on April 2, 1780 was about 2.0 °C. Wind direction mainly east by south. Weather type: zeer betrokken. Source: KNMI
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 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.
August 16 » American Revolutionary War: Battle of Camden: The British defeat the Americans near Camden, South Carolina.
September 21 » American Revolutionary War: Benedict Arnold gives the British the plans to West Point.
September 23 » American Revolution: British Major John André is arrested as a spy by American soldiers exposing Benedict Arnold's change of sides.
December 14 » Founding Father Alexander Hamilton marries Elizabeth Schuyler Hamilton at the Schuyler Mansion in Albany, New York
Day of death March 16, 1781
The temperature on March 16, 1781 was about 5.0 °C. Wind direction mainly northeast. Weather type: omtrent helder. Special wheather fenomena: noorderlicht. Source: KNMI
January 6 » In the Battle of Jersey, the British defeat the last attempt by France to invade Jersey in the Channel Islands.
January 17 » American Revolutionary War: Battle of Cowpens: Continental troops under Brigadier General Daniel Morgan defeat British forces under Lieutenant Colonel Banastre Tarleton at the battle in South Carolina.
March 1 » The Articles of Confederation goes into effect in the United States.
March 13 » William Herschel discovers Uranus.
October 17 » American Revolutionary War: British General Charles, Earl Cornwallis surrenders at the Siege of Yorktown.
October 20 » The Patent of Toleration, providing limited freedom of worship, is approved in Austria.
When copying data from this family tree, please include a reference to the origin: Leen Schaap, "Database Schaap", database, Genealogy Online (https://www.genealogieonline.nl/database-schaap/I2105.php : accessed December 26, 2025), "Abraham Koomen (1780-1781)".
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