February 17 » In Sweden February 17 is followed by March 1 as the country moves from the Julian calendar to the Gregorian calendar.
May 1 » Publication of Species Plantarum by Linnaeus, and the formal start date of plant taxonomy adopted by the International Code of Botanical Nomenclature.
Day of marriage August 27, 1780
The temperature on August 27, 1780 was about 17.0 °C. Wind direction mainly northeast. Weather type: omtrent helder. Source: KNMI
May 13 » The Cumberland Compact is signed by leaders of the settlers in the Cumberland River area of what would become the U.S. state of Tennessee, providing for democratic government and a formal system of justice.
August 22 » James Cook's ship HMSResolution returns to England (Cook having been killed on Hawaii during the voyage).
September 21 » American Revolutionary War: Benedict Arnold gives the British the plans to West Point.
October 2 » American Revolutionary War: John André, a British Army officer, is hanged as a spy by the Continental Army.
November 5 » French-American forces under Colonel LaBalme are defeated by Miami Chief Little Turtle.
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: Keith Vickers, "Eijssens-Vickers Tree", database, Genealogy Online (https://www.genealogieonline.nl/eijssens-vickers-tree/I1237.php : accessed January 10, 2026), "Cornelis van Velsen (1753-????)".
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