March 28 » The Marathas under Baji Rao I attack and defeat the Mughals in the Battle of Delhi.
September 20 » The finish of the Walking Purchase which forces the cession of 1.2 million acres (4,860km²) of Lenape-Delaware tribal land to the Pennsylvania Colony.
November 4 » The Teatro di San Carlo, the oldest working opera house in Europe, is inaugurated in Naples, Italy.
December 24 » The Marathas defeat the combined forces of the Mughal Empire, Rajputs of Jaipur, Nizam of Hyderabad, Nawab of Awadh and Nawab of Bengal in the Battle of Bhopal.
Day of burial November 17, 1780
The temperature on November 17, 1780 was about 2.0 °C. Wind direction mainly south. Weather type: zeer betrokken. Source: KNMI
March 14 » American Revolutionary War: Spanish forces capture Fort Charlotte in Mobile, Alabama, the last British frontier post capable of threatening New Orleans.
May 29 » American Revolutionary War: At the Battle of Waxhaws, the British continue attacking after the Continentals lay down their arms, killing 113 and critically wounding all but 53 that remained.
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 10 » The Great Hurricane of 1780 kills 20,000–30,000 in the Caribbean.
November 5 » French-American forces under Colonel LaBalme are defeated by Miami Chief Little Turtle.
When copying data from this family tree, please include a reference to the origin: Alle Elbers, "Sluzigers (e.a.)", database, Genealogy Online (https://www.genealogieonline.nl/sluzigers/I13615.php : accessed February 8, 2026), "Hendrikjen Klaas Kuijers (± 1715-1780)".
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