February 4 » The city of Macapá in Brazil is founded by Sebastião Veiga Cabral.
April 28 » The Marathas defeat the Afghans in the Battle of Attock and capture the city.
June 23 » Seven Years' War: Battle of Krefeld: British, Hanoverian, and Prussian forces defeat French troops at Krefeld in Germany.
August 25 » Seven Years' War: Frederick II of Prussia defeats the Russian army at the Battle of Zorndorf.
September 11 » Battle of Saint Cast: France repels British invasion during the Seven Years' War.
December 25 » Halley's Comet is sighted by Johann Georg Palitzsch, confirming Edmund Halley's prediction of its passage. This was the first passage of a comet predicted ahead of time.
Day of marriage June 30, 1782
The temperature on June 30, 1782 was about 17.0 °C. Wind direction mainly southwest by west. Weather type: zeer betrokken. Source: KNMI
January 7 » The first American commercial bank, the Bank of North America, opens.
January 15 » Superintendent of Finance Robert Morris addresses the U.S. Congress to recommend establishment of a national mint and decimal coinage.
February 27 » American Revolutionary War: The House of Commons of Great Britain votes against further war in America.
August 7 » George Washington orders the creation of the Badge of Military Merit to honor soldiers wounded in battle. It is later renamed to the more poetic Purple Heart.
November 30 » American Revolutionary War: Treaty of Paris: In Paris, representatives from the United States and Great Britain sign preliminary peace articles (later formalized as the 1783 Treaty of Paris).
December 14 » The Montgolfier brothers first test fly an unmanned hot air balloon in France; it floats nearly 2km (1.2mi).
Day of death December 28, 1790
The temperature on December 28, 1790 was about 2.0 °C. Wind direction mainly south. Weather type: betrokken. Source: KNMI
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/I30978.php : accessed February 18, 2026), "Gerrit Ketel (1758-1790)".
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