The temperature on April 2, 1769 was about 4.0 °C. Wind direction mainly north-northeast. Weather type: donker. Special wheather fenomena: rijp. Source: KNMI
July 14 » An expedition led by Gaspar de Portolá leaves its base in California and sets out to find the Port of Monterey (now Monterey, California).
July 16 » Father Junípero Serra founds California's first mission, Mission San Diego de Alcalá. Over the following decades, it evolves into the city of San Diego, California.
December 13 » Dartmouth College is founded by the Reverend Eleazar Wheelock, with a royal charter from King George III, on land donated by Royal governor John Wentworth.
December 22 » Sino-Burmese War: The war ends with an uneasy truce.
Day of marriage May 8, 1791
The temperature on May 8, 1791 was about 7.0 °C. There was 22 mm of rainWind direction mainly north. Weather type: zeer betrokken. Source: KNMI
March 2 » Long-distance communication speeds up with the unveiling of a semaphore machine in Paris.
March 4 » Vermont is admitted to the United States as the fourteenth state.
May 3 » The Constitution of May 3 (the first modern constitution in Europe) is proclaimed by the Sejm of Polish–Lithuanian Commonwealth.
September 9 » Washington, D.C., the capital of the United States, is named after President George Washington.
September 14 » The Papal States lose Avignon to Revolutionary France.
December 15 » The United States Bill of Rights becomes law when ratified by the Virginia General Assembly.
Day of death August 31, 1792
The temperature on August 31, 1792 was about 17.0 °C. There was 22 mm of rainWind direction mainly southwest. Weather type: omtrent helder. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Harry van Rijn, "Family tree Van Rijn/Koedooder/Mangnus/Oorthuis", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-rijn-koedooder/I7651.php : accessed August 10, 2025), "Jan Willemsz Vlaar (1769-1792)".
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