The temperature on May 21, 1752 was about 12.0 °C. There was 2 mm of rainWind direction mainly northeast. Weather type: regen omtrent helder. Source: KNMI
February 29 » King Alaungpaya founds Konbaung Dynasty, the last dynasty of Burmese monarchy.
April 20 » Start of Konbaung–Hanthawaddy War, a new phase in the Burmese Civil War (1740–57).
June 15 » Benjamin Franklin proves that lightning is electricity (traditional date, the exact date is unknown).
September 2 » Great Britain, along with its overseas possessions, adopts the Gregorian calendar.
September 14 » The British Empire adopts the Gregorian calendar, skipping eleven days (the previous day was September 2).
Day of marriage April 20, 1781
The temperature on April 20, 1781 was about 14.0 °C. There was 4 mm of rainWind direction mainly south-southwest. Weather type: regen geheel betrokken. Source: KNMI
February 3 » American Revolutionary War: British forces seize the Dutch-owned Caribbean island Sint Eustatius.
February 18 » Fourth Anglo-Dutch War: Captain Thomas Shirley opens his expedition against Dutch colonial outposts on the Gold Coast of Africa (present-day Ghana).
March 1 » The Articles of Confederation goes into effect in the United States.
March 13 » William Herschel discovers Uranus.
March 15 » American Revolutionary War: Battle of Guilford Court House: Near present-day Greensboro, North Carolina, 1,900 British troops under General Charles Cornwallis defeat a mixed American force numbering 4,400 in a Pyrrhic victory.
October 17 » American Revolutionary War: British General Charles, Earl Cornwallis surrenders at the Siege of Yorktown.
When copying data from this family tree, please include a reference to the origin: Leen Schaap, "Database Schaap", database, Genealogy Online (https://www.genealogieonline.nl/database-schaap/I9899.php : accessed December 25, 2025), "Jan Adriaansz de Boer (1752-????)".
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