January 24 » During the Seven Years' War the leading burghers of Königsberg submit to Elizabeth of Russia, thus forming Russian Prussia (until 1763).
June 23 » Seven Years' War: Battle of Krefeld: British, Hanoverian, and Prussian forces defeat French troops at Krefeld in Germany.
July 8 » French forces hold Fort Carillon against the British at Ticonderoga, New York.
October 14 » Seven Years' War: Frederick the Great suffers a rare defeat at the Battle of Hochkirch.
December 13 » The English transport ship Duke William sinks in the North Atlantic, killing over 360 people.
December 25 » Halley's Comet is sighted by Johann Georg Palitzsch, confirming Edmund Halley's prediction of its passage. This was the first passage of a comet predicted ahead of time.
When copying data from this family tree, please include a reference to the origin: gerjans22, "Jansma family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-jansma/I474.php : accessed January 12, 2026), "Jantje Hendriks (????-1758)".
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