March 20 » The Great Boston Fire of 1760 destroys 349 buildings.
June 4 » Great Upheaval: New England planters arrive to claim land in Nova Scotia, Canada, taken from the Acadians.
June 23 » Seven Years' War: Battle of Landeshut: Austria defeats Prussia.
August 15 » Seven Years' War: Battle of Liegnitz: Frederick the Great's victory over the Austrians under Ernst Gideon von Laudon.
October 10 » In a treaty with the Dutch colonial authorities, the Ndyuka people of Suriname - descended from escaped slaves - gain territorial autonomy.
November 15 » The secondly-built Castellania in Valletta is officially inaugurated with the blessing of the interior Chapel of Sorrows.
Day of marriage May 13, 1786
The temperature on May 13, 1786 was about 14.0 °C. Wind direction mainly southwest. Weather type: zeer betrokken. Source: KNMI
February 18 » Congress passes a law admitting the state of Vermont to the Union, effective 4 March, after that state had existed for 14 years as a de facto independent largely unrecognized state.
March 2 » Long-distance communication speeds up with the unveiling of a semaphore machine in Paris.
March 4 » The Constitutional Act of 1791 is introduced by the British House of Commons in London which envisages the separation of Canada into Lower Canada (Quebec) and Upper Canada (Ontario).
July 14 » The Priestley Riots drive Joseph Priestley, a supporter of the French Revolution, out of Birmingham, England.
September 30 » The first performance of Mozart's opera The Magic Flute takes place two months before his death.
December 4 » The first edition of The Observer, the world's first Sunday newspaper, is published.
When copying data from this family tree, please include a reference to the origin: Erik Develter, "Family tree Erik Develter", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-erik-develter/I4265602186399785.php : accessed May 6, 2025), "Isabella Theresia Develter (1760-1791)".
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