January 18 » Frederick I crowns himself King of Prussia in Königsberg.
May 23 » After being convicted of piracy and of murdering William Moore, Captain William Kidd is hanged in London.
July 9 » A Bourbon force under Nicolas Catinat withdraws from a smaller Habsburg force under Prince Eugene of Savoy in the Battle of Carpi.
July 24 » Antoine de la Mothe Cadillac founds the trading post at Fort Pontchartrain, which later becomes the city of Detroit.
September 16 » James Francis Edward Stuart, sometimes called the "Old Pretender", becomes the Jacobite claimant to the thrones of England and Scotland.
October 9 » The Collegiate School of Connecticut (later renamed Yale University) is chartered in Old Saybrook.
Day of marriage March 11, 1742
The temperature on March 11, 1742 was about 0.0 °C. Wind direction mainly northeast. Weather type: helder. Source: KNMI
June 23 » Seven Years' War: Battle of Landeshut: Austria defeats Prussia.
October 9 » Seven Years' War: Russian and Austrian troops briefly occupy Berlin.
October 10 » In a treaty with the Dutch colonial authorities, the Ndyuka people of Suriname - descended from escaped slaves - gain territorial autonomy.
October 25 » King George III succeeds to the British throne on death of his grandfather George II
November 15 » The secondly-built Castellania in Valletta is officially inaugurated with the blessing of the interior Chapel of Sorrows.
November 18 » The rebuilt debtors' prison, at the Castellania in Valletta, receives the first prisoners.
When copying data from this family tree, please include a reference to the origin: Rik Plomp, "Pedigree Plomp", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-plomp/I3878.php : accessed March 4, 2026), "Johannes Jansz van Helvoort (1701-1760)".
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