February 22 » War of the Austrian Succession: The Battle of Toulon causes several Royal Navy captains to be court-martialed, and the Articles of War to be amended.
July 4 » The Treaty of Lancaster, in which the Iroquois cede lands between the Allegheny Mountains and the Ohio River to the British colonies, was signed in Lancaster, Pennsylvania.
September 30 » War of the Austrian Succession: France and Spain defeat Sardinia at the Battle of Madonna dell'Olmo, but soon have to withdraw from Sardinia anyway.
Day of death November 28, 1789
The temperature on November 28, 1789 was about 6.0 °C. Wind direction mainly northwest. Weather type: zeer betrokken. Source: KNMI
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.
August 28 » William Herschel discovers a new moon of Saturn: Enceladus.
September 2 » The United States Department of the Treasury is founded.
September 22 » The office of United States Postmaster General is established.
September 26 » George Washington appoints Thomas Jefferson the first United States Secretary of State.
September 29 » The United States Department of War first establishes a regular army with a strength of several hundred men.
When copying data from this family tree, please include a reference to the origin: Alfred Groot, "Family tree Groot", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-groot/I1062.php : accessed January 7, 2026), "Claas Willem Groot (± 1720-1789)".
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