May 21 » Ten-year-old Mary Campbell is abducted in Pennsylvania by Lenape during the French and Indian War. She is returned six and a half years later.
June 12 » French and Indian War: Siege of Louisbourg: James Wolfe's attack at Louisbourg, Nova Scotia, commences.
August 25 » Seven Years' War: Frederick II of Prussia defeats the Russian army at the Battle of Zorndorf.
October 14 » Seven Years' War: Frederick the Great suffers a rare defeat at the Battle of Hochkirch.
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 13 » The English transport ship Duke William sinks in the North Atlantic, killing over 360 people.
Day of marriage April 29, 1780
The temperature on April 29, 1780 was about 12.0 °C. Wind direction mainly southwest. Weather type: zeer betrokken. Special wheather fenomena: noorderlicht. Source: KNMI
March 14 » American Revolutionary War: Spanish forces capture Fort Charlotte in Mobile, Alabama, the last British frontier post capable of threatening New Orleans.
March 17 » American Revolution: George Washington grants the Continental Army a holiday "as an act of solidarity with the Irish in their fight for independence".
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.
August 16 » American Revolutionary War: Battle of Camden: The British defeat the Americans near Camden, South Carolina.
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.
When copying data from this family tree, please include a reference to the origin: R.A.Hemerik, "Descendants Hemerik-Broekhuizen-Huner-Koper-Barink", database, Genealogy Online (https://www.genealogieonline.nl/parenteel-hemerik/I29584.php : accessed February 7, 2026), "Dirk Groenendijk (1758-????)".
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