January 21 » The first American novel, The Power of Sympathy or the Triumph of Nature Founded in Truth by William Hill Brown, is printed in Boston.
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 11 » Alexander Hamilton is appointed the first United States Secretary of the Treasury.
September 29 » The 1st United States Congress adjourns.
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: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I29630.php : accessed September 27, 2026), "Leffert Theunis (± 1711-1789)".
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