January 28 » Sir Horace Walpole coins the word serendipity in a letter to a friend.
May 28 » French and Indian War: In the first engagement of the war, Virginia militia under the 22-year-old Lieutenant colonel George Washington defeat a French reconnaissance party in the Battle of Jumonville Glen in what is now Fayette County in southwestern Pennsylvania.
July 3 » French and Indian War: George Washington surrenders Fort Necessity to French forces.
Day of marriage May 6, 1781
The temperature on May 6, 1781 was about 7.0 °C. Wind direction mainly north-northwest. Weather type: omtrent helder. Source: KNMI
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.
August 24 » American Revolutionary War: A small force of Pennsylvania militia is ambushed and overwhelmed by an American Indian group, which forces George Rogers Clark to abandon his attempt to attack Detroit.
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.
September 28 » American Revolution: American forces backed by a French fleet begin the siege of Yorktown.
When copying data from this family tree, please include a reference to the origin: Wim Helsdingen, "Family tree Helsdingen", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-helsdingen/I480.php : accessed February 19, 2026), "Jan Sprong (1754-????)".
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