February 4 » The city of Macapá in Brazil is founded by Sebastião Veiga Cabral.
June 12 » French and Indian War: Siege of Louisbourg: James Wolfe's attack at Louisbourg, Nova Scotia, commences.
June 23 » Seven Years' War: Battle of Krefeld: British, Hanoverian, and Prussian forces defeat French troops at Krefeld in Germany.
July 26 » French and Indian War: The Siege of Louisbourg ends with British forces defeating the French and taking control of the Gulf of Saint Lawrence.
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.
Day of marriage December 12, 1780
The temperature on December 12, 1780 was about 6.0 °C. Wind direction mainly west-northwest. Weather type: betrokken. Source: KNMI
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.
September 21 » American Revolutionary War: Benedict Arnold gives the British the plans to West Point.
October 2 » American Revolutionary War: John André, a British Army officer, is hanged as a spy by the Continental Army.
October 7 » American Revolutionary War: American militia defeat royalist irregulars led by British major Patrick Ferguson in South Carolina.
October 16 » American Revolutionary War: The British-led Royalton raid is the last Native American raid on New England.
Day of death February 20, 1789
The temperature on February 20, 1789 was about 3.0 °C. Wind direction mainly west-northwest. Weather type: omtrent helder. Source: KNMI
March 4 » In New York City, the first Congress of the United States meets, putting the United States Constitution into effect. The United States Bill of Rights is written and proposed to Congress.
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.
April 21 » George Washington's reception at Trenton is hosted by the Ladies of Trenton as he journeys to New York City for his first inauguration.
June 8 » James Madison introduces twelve proposed amendments to the United States Constitution in Congress.
July 10 » Alexander Mackenzie reaches the Mackenzie River delta.
November 21 » North Carolina ratifies the United States Constitution and is admitted as the 12th U.S. state.
When copying data from this family tree, please include a reference to the origin: Ton Deunhouwer, "Family tree Dullemen", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-dullemen/I200723.php : accessed February 28, 2026), "Wilhelmina Carolina Dorothea Des Hrr Gravin Von. Heiden-Hompesch (1758-1789)".
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