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.
July 10 » Alexander Mackenzie reaches the Mackenzie River delta.
July 27 » The first U.S. federal government agency, the Department of Foreign Affairs, is established (it will be later renamed Department of State).
September 15 » The United States "Department of Foreign Affairs", established by law in July, is renamed the Department of State and given a variety of domestic duties.
September 25 » The United States Congress passes twelve constitutional amendments: the ten known as the Bill of Rights, the (unratified) Congressional Apportionment Amendment, and the Congressional Compensation Amendment.
October 3 » George Washington proclaims a Thanksgiving Day for that year.
When copying data from this family tree, please include a reference to the origin: Hendrik Dreyer, "Dreyer Tree", database, Genealogy Online (https://www.genealogieonline.nl/dreyer-tree/I534416.php : accessed February 1, 2026), "Petrus Melt van der Spuij (1789-1859)".
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