January 9 » Ahmad Shah Durrani defeats the Marathas in the Battle of Barari Ghat.
June 23 » Seven Years' War: Battle of Landeshut: Austria defeats Prussia.
July 8 » British forces defeat French forces in the last naval battle in New France.
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 18 » The rebuilt debtors' prison, at the Castellania in Valletta, receives the first prisoners.
Day of marriage April 18, 1790
The temperature on April 18, 1790 was about 6.0 °C. Wind direction mainly north-northwest. Weather type: zeer betrokken. Source: KNMI
March 4 » France is divided into 83 départements, cutting across the former provinces in an attempt to dislodge regional loyalties based on ownership of land by the nobility.
May 29 » Rhode Island becomes the last of North America's original Thirteen Colonies to ratify the Constitution and become one of the United States.
July 16 » The District of Columbia is established as the capital of the United States after signature of the Residence Act.
September 25 » Four Great Anhui Troupes introduce Anhui opera to Beijing in honor of the Qianlong Emperor's eightieth birthday.
October 9 » A severe earthquake in northern Algeria causes severe damage and a tsunami in the Mediterranean Sea and kills three thousand.
December 31 » Efimeris, the oldest Greek newspaper of which issues have survived till today, is published for the first time.
When copying data from this family tree, please include a reference to the origin: R.A.Hemerik, "Descendants Hemerik-Broekhuizen-Huner-Koper-Barink", database, Genealogy Online (https://www.genealogieonline.nl/parenteel-hemerik/I64329.php : accessed January 29, 2026), "Cornelis Jansz Onderwater (1760-????)".
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