January 24 » During the Seven Years' War the leading burghers of Königsberg submit to Elizabeth of Russia, thus forming Russian Prussia (until 1763).
June 23 » Seven Years' War: Battle of Krefeld: British, Hanoverian, and Prussian forces defeat French troops at Krefeld in Germany.
July 8 » French forces hold Fort Carillon against the British at Ticonderoga, New York.
August 25 » Seven Years' War: Frederick II of Prussia defeats the Russian army at the Battle of Zorndorf.
November 25 » French and Indian War: British forces capture Fort Duquesne from French control. Later, Fort Pitt will be built nearby and grow into modern Pittsburgh.
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 October 11, 1789
The temperature on October 11, 1789 was about 9.0 °C. Wind direction mainly southwest. Weather type: omtrent helder. Special wheather fenomena: noorderlicht. Source: KNMI
January 21 » The first American novel, The Power of Sympathy or the Triumph of Nature Founded in Truth by William Hill Brown, is printed in Boston.
January 23 » Georgetown College, the first Catholic university in the United States, is founded in Georgetown, Maryland (now a part of Washington, D.C.).
February 4 » George Washington is unanimously elected as the first President of the United States by the U.S. Electoral College.
April 1 » In New York City, the United States House of Representatives achieves its first quorum and elects Frederick Muhlenberg of Pennsylvania as its first Speaker.
June 8 » James Madison introduces twelve proposed amendments to the United States Constitution in Congress.
August 4 » France: Members of the National Constituent Assembly take an oath to end feudalism and abandon their privileges.
When copying data from this family tree, please include a reference to the origin: Berry van Osch, "Family tree Van Osch", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-osch/I9178.php : accessed February 18, 2026), "Marguerite Grandjean (1758-> 1819)".
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