March 4 » John Flamsteed is appointed the first Astronomer Royal of England.
August 10 » The foundation stone of the Royal Greenwich Observatory in London, England is laid.
August 11 » Franco-Dutch War: Forces of the Holy Roman Empire defeat the French in the Battle of Konzer Brücke.
November 11 » Gottfried Leibniz demonstrates integral calculus for the first time to find the area under the graph of y = ƒ(x).
December 11 » Antonio de Vea expedition enters San Rafael Lake in western Patagonia.
December 19 » The Great Swamp Fight, a pivotal battle in King Philip's War, gives the English settlers a bitterly won victory.
Day of burial August 11, 1749
The temperature on August 11, 1749 was about 20.0 °C. Wind direction mainly west. Weather type: zeer betrokken. Special wheather fenomena: donder weerlicht. Source: KNMI
January 3 » Benning Wentworth issues the first of the New Hampshire Grants, leading to the establishment of Vermont.
January 3 » The first issue of Berlingske, Denmark's oldest continually operating newspaper, is published.
January 21 » The Teatro Filarmonico in Verona is destroyed by fire, as a result of a torch being left behind in the box of a nobleman after a performance. It is rebuilt in 1754.
May 19 » King George II of Great Britain grants the Ohio Company a charter of land around the forks of the Ohio River.
When copying data from this family tree, please include a reference to the origin: B.J. Jansen, "Family tree Jansen", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-jansen/I276.php : accessed February 4, 2026), "Anna Catherina Hermes (1675-1749)".
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