The temperature on August 11, 1781 was about 20.0 °C. There was 70 mm of rainWind direction mainly south-southwest. Weather type: donder weerlicht bliksem regen. Source: KNMI
January 1 » American Revolutionary War: One thousand five hundred soldiers of the 6th Pennsylvania Regiment under General Anthony Wayne's command rebel against the Continental Army's winter camp in Morristown, New Jersey in the Pennsylvania Line Mutiny of 1781.
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).
August 5 » The Battle of Dogger Bank takes place.
September 6 » The Battle of Groton Heights takes place, resulting in a British victory.
September 8 » American Revolutionary War: The Battle of Eutaw Springs in South Carolina, the war's last significant battle in the Southern theater, ends in a narrow British tactical victory.
October 19 » American Revolutionary War: The siege of Yorktown comes to an end.
Day of burial May 12, 1782
The temperature on May 12, 1782 was about 13.0 °C. Wind direction mainly south-southwest. Weather type: zeer betrokken. Special wheather fenomena: noorderlicht. Source: KNMI
January 7 » The first American commercial bank, the Bank of North America, opens.
January 15 » Superintendent of Finance Robert Morris addresses the U.S. Congress to recommend establishment of a national mint and decimal coinage.
April 9 » American Revolutionary War: Battle of the Saintes begins.
April 21 » The city of Rattanakosin, now known internationally as Bangkok, is founded on the eastern bank of the Chao Phraya River by King Buddha Yodfa Chulaloke.
June 10 » King Buddha Yodfa Chulaloke (Rama I) of Siam (modern day Thailand) is crowned.
August 7 » George Washington orders the creation of the Badge of Military Merit to honor soldiers wounded in battle. It is later renamed to the more poetic Purple Heart.
When copying data from this family tree, please include a reference to the origin: Hans Opperman, "Family tree Opperman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-opperman/I646.php : accessed February 23, 2026), "Josephus Opperman (-1782)".
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