January 25 » The London Corresponding Society is founded.
May 11 » Robert Gray commands the first expedition to sail into the Columbia River.
June 4 » Captain George Vancouver claims Puget Sound for the Kingdom of Great Britain.
October 13 » In Washington, D.C., the cornerstone of the United States Executive Mansion (known as the White House since 1818) is laid.
October 29 » Mount Hood (Oregon) is named after Samuel Hood, 1st Viscount Hood by Lt. William E. Broughton who sighted the mountain near the mouth of the Willamette River.
December 11 » French Revolution: King Louis XVI of France is put on trial for treason by the National Convention.
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/I7061.php : accessed May 1, 2025), "Josua Pieter Cilliers c6 (1756-????)".
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