January 1 » General George Washington hoists the first United States flag; the Grand Union Flag at Prospect Hill.
March 4 » American Revolutionary War: The Continental Army fortifies Dorchester Heights with cannon, leading the British troops to abandon the Siege of Boston.
June 15 » Delaware Separation Day: Delaware votes to suspend government under the British Crown and separate officially from Pennsylvania.
July 4 » American Revolution: The United States Declaration of Independence is adopted by the Second Continental Congress.
September 9 » The Continental Congress officially names its union of states the United States.
September 21 » Part of New York City is burned shortly after being occupied by British forces.
Day of death February 12, 1781
The temperature on February 12, 1781 was about 8.0 °C. Wind direction mainly southwest. Weather type: omtrent helder. Source: KNMI
January 1 » American Revolutionary War: One thousand five hundred soldiers of the 6th Pennsylvania Regiment under General Anthony Wayne's command rebel against the Continental Army's winter camp in Morristown, New Jersey in the Pennsylvania Line Mutiny of 1781.
February 18 » Fourth Anglo-Dutch War: Captain Thomas Shirley opens his expedition against Dutch colonial outposts on the Gold Coast of Africa (present-day Ghana).
March 13 » William Herschel discovers Uranus.
April 29 » American Revolutionary War: British and French ships clash in the Battle of Fort Royal off the coast of Martinique.
September 5 » Battle of the Chesapeake in the American Revolutionary War: The British Navy is repelled by the French Navy, contributing to the British surrender at Yorktown.
October 17 » American Revolutionary War: British General Charles, Earl Cornwallis surrenders at the Siege of Yorktown.
When copying data from this family tree, please include a reference to the origin: J. Ham, "Family tree Ham", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ham/I5992.php : accessed January 6, 2026), "Jacomina Jansen (van Zeist) (????-1781)".
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