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).
August 5 » The Battle of Dogger Bank takes place.
September 8 » American Revolutionary War: The Battle of Eutaw Springs in South Carolina, the war's last significant battle in the Southern theater, ends in a narrow British tactical victory.
October 19 » American Revolutionary War: The siege of Yorktown comes to an end.
November 29 » The crew of the British slave ship Zong murders 133 Africans by dumping them into the sea to claim insurance.
Day of death September 12, 1786
The temperature on September 12, 1786 was about 18.0 °C. Wind direction mainly southwest. Weather type: zeer betrokken. Source: KNMI
May 1 » In Vienna, Austria, Mozart's opera The Marriage of Figaro is performed for the first time.
June 10 » A landslide dam on the Dadu River created by an earthquake ten days earlier collapses, killing 100,000 in the Sichuan province of China.
June 29 » Alexander Macdonell and over five hundred Roman Catholic highlanders leave Scotland to settle in Glengarry County, Ontario.
August 8 » Mont Blanc on the French-Italian border is climbed for the first time by Jacques Balmat and Dr. Michel-Gabriel Paccard.
September 11 » The beginning of the Annapolis Convention.
November 30 » The Grand Duchy of Tuscany, under Pietro Leopoldo I, becomes the first modern state to abolish the death penalty (later commemorated as Cities for Life Day).
When copying data from this family tree, please include a reference to the origin: Nico de Kunder, "Family tree De Kunder", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-de-kunder/I6428.php : accessed October 25, 2026), "Hermanus Jentjens (± 1715-1786)".
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