May 22 » Sweden and Prussia sign the Treaty of Hamburg.
May 22 » Trevi Fountain is officially completed and inaugurated in Rome.
June 24 » Battle of Wilhelmsthal: The British-Hanoverian army of Ferdinand of Brunswick defeats French forces in Westphalia.
July 9 » Catherine the Great becomes Empress of Russia following the coup against her husband, Peter III.
September 12 » The Sultanate of Sulu ceded Balambangan Island to the British East India Company
September 15 » Seven Years' War: Battle of Signal Hill.
Day of marriage April 23, 1780
The temperature on April 23, 1780 was about 14.0 °C. There was 4 mm of rainWind direction mainly southwest. Weather type: zeer betrokken regen. Source: KNMI
January 16 » American Revolutionary War: Battle of Cape St. Vincent.
May 12 » American Revolutionary War: In the largest defeat of the Continental Army, Charleston, South Carolina is taken by British forces.
May 13 » The Cumberland Compact is signed by leaders of the settlers in the Cumberland River area of what would become the U.S. state of Tennessee, providing for democratic government and a formal system of justice.
September 21 » American Revolutionary War: Benedict Arnold gives the British the plans to West Point.
October 10 » The Great Hurricane of 1780 kills 20,000–30,000 in the Caribbean.
October 16 » American Revolutionary War: The British-led Royalton raid is the last Native American raid on New England.
When copying data from this family tree, please include a reference to the origin: DF020, "Family tree DeVries", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-devries/I96.php : accessed February 10, 2026), "Johanna Berendina Cramer (1762-????)".
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