April 30 » On the balcony of Federal Hall on Wall Street in New York City, George Washington takes the oath of office to become the first elected President of the United States.
June 17 » In France, the Third Estate declares itself the National Assembly.
June 20 » Deputies of the French Third Estate take the Tennis Court Oath.
July 10 » Alexander Mackenzie reaches the Mackenzie River delta.
September 22 » The office of United States Postmaster General is established.
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.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I194490.php : accessed October 13, 2026), "Pieter Jetzes Posthumus (± 1754-± 1804)".
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