The temperature on July 13, 1743 was about 17.0 °C. There was 110 mm of rainWind direction mainly south east. Weather type: betrokken regen donder bliksem. Source: KNMI
May 12 » Maria Theresa of Austria is crowned Queen of Bohemia after defeating her rival, Charles VII, Holy Roman Emperor.
May 19 » Jean-Pierre Christin developed the centigrade temperature scale.
June 27 » In the Battle of Dettingen, George II becomes the last reigning British monarch to participate in a battle.
September 13 » Great Britain, Austria and the Kingdom of Sardinia sign the Treaty of Worms.
Day of marriage April 15, 1774
The temperature on April 15, 1774 was about 8.0 °C. Wind direction mainly east-northeast. Weather type: geheel betrokken. Special wheather fenomena: wat dauw. Source: KNMI
June 13 » Rhode Island becomes the first of Britain's North American colonies to ban the importation of slaves.
July 4 » Orangetown Resolutions are adopted in the Province of New York, one of many protests against the British Parliament's Coercive Acts.
August 1 » British scientist Joseph Priestley discovers oxygen gas, corroborating the prior discovery of this element by German-Swedish chemist Carl Wilhelm Scheele.
September 4 » New Caledonia is first sighted by Europeans, during the second voyage of Captain James Cook.
September 5 » First Continental Congress assembles in Philadelphia.
October 26 » The first Continental Congress adjourns in Philadelphia.
Day of death August 28, 1793
The temperature on August 28, 1793 was about 15.0 °C. Wind direction mainly west-southwest. Weather type: zeer betrokken. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Gert Jonker, "Family tree Jonker", database, Genealogy Online (https://www.genealogieonline.nl/jonker_stamboom/I4884.php : accessed January 31, 2026), "Willem Loman Slagman Plumpman (Ilbrink) (1743-1793)".
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