January 23 » Georgetown College, the first Catholic university in the United States, is founded in Georgetown, Maryland (now a part of Washington, D.C.).
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 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.
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 2 » The United States Department of the Treasury is founded.
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.
Christening day May 17, 1789
The temperature on May 17, 1789 was about 13.0 °C. Wind direction mainly southwest. Weather type: zeer half bewolkt winderig. Source: KNMI
February 4 » George Washington is unanimously elected as the first President of the United States by the U.S. Electoral College.
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 20 » George Washington arrives at Grays Ferry, Philadelphia while en route to Manhattan for his inauguration.
September 22 » Battle of Rymnik: Alexander Suvorov's Russian and allied army defeats superior Ottoman Empire forces.
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/I104443.php : accessed October 23, 2026), "Jeltje Anthoons (1789-< 1794)".
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