January 23 » Georgetown College, the first Catholic university in the United States, is founded in Georgetown, Maryland (now a part of Washington, D.C.).
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.
May 5 » In France, the Estates-General convenes for the first time since 1614.
July 14 » Alexander Mackenzie finally completes his journey to the mouth of the great river he hoped would take him to the Pacific, but which turns out to flow into the Arctic Ocean. Later named after him, the Mackenzie is the second-longest river system in North America.
September 24 » The United States Congress passes the Judiciary Act, creating the office of the Attorney General and federal judiciary system and ordering the composition of the Supreme Court.
September 29 » The 1st United States Congress adjourns.
When copying data from this family tree, please include a reference to the origin: Tjitze Koster, "Family tree Koster Twijslerheide e.o.", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-koster/I2807.php : accessed January 25, 2026), "Zytske Folkerts".
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