September 21 » American Revolutionary War: Benedict Arnold gives the British the plans to West Point.
September 23 » American Revolution: British Major John André is arrested as a spy by American soldiers exposing Benedict Arnold's change of sides.
October 2 » American Revolutionary War: John André, a British Army officer, is hanged as a spy by the Continental Army.
October 10 » The Great Hurricane of 1780 kills 20,000–30,000 in the Caribbean.
November 4 » The Rebellion of Túpac Amaru II against Spanish rule in the Viceroyalty of Peru begins.
November 9 » American Revolutionary War: In the Battle of Fishdam Ford a force of British and Loyalist troops fail in a surprise attack against the South Carolina Patriot militia under Brigadier General Thomas Sumter.
When copying data from this family tree, please include a reference to the origin: Dirk Ham, "Family tree Ham en Dallinga", database, Genealogy Online (https://www.genealogieonline.nl/ham-stamboom/I7416.php : accessed January 24, 2026), "Maartje Jans de Lange (1712-1780)".
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