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 July 7, 1781
The temperature on July 7, 1781 was about 20.0 °C. Wind direction mainly south by east. Weather type: omtrent helder betrokken. Source: KNMI
January 17 » American Revolutionary War: Battle of Cowpens: Continental troops under Brigadier General Daniel Morgan defeat British forces under Lieutenant Colonel Banastre Tarleton at the battle in South Carolina.
February 18 » Fourth Anglo-Dutch War: Captain Thomas Shirley opens his expedition against Dutch colonial outposts on the Gold Coast of Africa (present-day Ghana).
March 1 » The Articles of Confederation goes into effect in the United States.
September 4 » Los Angeles is founded as El Pueblo de Nuestra Señora La Reina de los Ángeles (The Village of Our Lady, the Queen of the Angels) by 44 Spanish settlers.
September 6 » The Battle of Groton Heights takes place, resulting in a British victory.
October 20 » The Patent of Toleration, providing limited freedom of worship, is approved in Austria.
When copying data from this family tree, please include a reference to the origin: R.A.Hemerik, "Descendants Hemerik-Broekhuizen-Huner-Koper-Barink", database, Genealogy Online (https://www.genealogieonline.nl/parenteel-hemerik/I66137.php : accessed March 15, 2026), "Franciscus Ouwerkerk (1753-????)".
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