April 16 » Franz Friedrich Wilhelm von Fürstenberg founds the University of Münster.
August 22 » James Cook's ship HMSResolution returns to England (Cook having been killed on Hawaii during the voyage).
September 23 » American Revolution: British Major John André is arrested as a spy by American soldiers exposing Benedict Arnold's change of sides.
October 10 » The Great Hurricane of 1780 kills 20,000–30,000 in the Caribbean.
November 5 » French-American forces under Colonel LaBalme are defeated by Miami Chief Little Turtle.
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.
Day of death January 5, 1786
The temperature on January 5, 1786 was about -7.0 °C. Wind direction mainly east by south. Weather type: omtrent helder. Source: KNMI
January 16 » Virginia enacts the Statute for Religious Freedom authored by Thomas Jefferson.
May 1 » In Vienna, Austria, Mozart's opera The Marriage of Figaro is performed for the first time.
August 7 » The first federal Indian Reservation is created by the United States.
August 8 » Mont Blanc on the French-Italian border is climbed for the first time by Jacques Balmat and Dr. Michel-Gabriel Paccard.
August 11 » Captain Francis Light establishes the British colony of Penang in Malaysia.
September 11 » The beginning of the Annapolis Convention.
Day of burial January 9, 1786
The temperature on January 9, 1786 was about 4.0 °C. There was 22 mm of rainWind direction mainly south east. Weather type: betrokken regen. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Peter Keesman, "Family tree Keesman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-keesman/I6680.php : accessed February 20, 2026), "Maartjen Sijmons Klaver (????-1786)".
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