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 July 7, 1777
The temperature on July 7, 1777 was about 14.0 °C. There was 22 mm of rainWind direction mainly south-southwest. Weather type: betrokken regen. Source: KNMI
January 15 » American Revolutionary War: New Connecticut (present-day Vermont) declares its independence.
April 13 » American Revolutionary War: American forces are ambushed and defeated in the Battle of Bound Brook, New Jersey.
June 13 » American Revolutionary War: Gilbert du Motier, Marquis de Lafayette lands near Charleston, South Carolina, in order to help the Continental Congress to train its army.
July 31 » The U.S. Second Continental Congress passes a resolution that the services of Gilbert du Motier, Marquis de Lafayette "be accepted, and that, in consideration of his zeal, illustrious family and connexions, he have the rank and commission of major-general of the United States."
September 26 » American Revolution: British troops occupy Philadelphia.
October 4 » American Revolutionary War: Troops under George Washington are repelled by British troops under William Howe.
Day of death March 28, 1781
The temperature on March 28, 1781 was about 0.0 °C. Wind direction mainly east-northeast. Weather type: half bewolkt omtrent helder. Special wheather fenomena: noorderlicht. 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 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.
September 6 » The Battle of Groton Heights takes place, resulting in a British victory.
October 19 » American Revolutionary War: The siege of Yorktown comes to an end.
When copying data from this family tree, please include a reference to the origin: aart van rumpt , "Family tree Van Rumpt", database, Genealogy Online (https://www.genealogieonline.nl/van-rumpt-stamboom/I81030.php : accessed February 19, 2026), "Johannes Cornelisz Lagenhoek (1752-1781)".
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