January 25 » Moscow University is established on Tatiana Day.
February 13 » Treaty of Giyanti signed by VOC, Pakubuwono III and Prince Mangkubumi. The treaty divides the Javanese kingdom of Mataram into 2: Sunanate of Surakarta and Sultanate of Yogyakarta.
April 15 » Samuel Johnson's A Dictionary of the English Language is published in London.
July 9 » The Braddock Expedition is soundly defeated by a smaller French and Native American force in its attempt to capture Fort Duquesne in what is now downtown Pittsburgh.
August 10 » Under the orders of Charles Lawrence, the British Army begins to forcibly deport the Acadians from Nova Scotia to the Thirteen Colonies.
November 1 » In Portugal, Lisbon is totally devastated by a massive earthquake and tsunami, killing between 60,000 and 90,000 people.
Day of burial August 1, 1780
The temperature on August 1, 1780 was about 20.0 °C. Wind direction mainly east-northeast. Weather type: omtrent helder. Source: KNMI
March 14 » American Revolutionary War: Spanish forces capture Fort Charlotte in Mobile, Alabama, the last British frontier post capable of threatening New Orleans.
March 17 » American Revolution: George Washington grants the Continental Army a holiday "as an act of solidarity with the Irish in their fight for independence".
May 19 » New England's Dark Day, an unusual darkening of the day sky, was observed over the New England states and parts of Canada.
August 16 » American Revolutionary War: Battle of Camden: The British defeat the Americans near Camden, South Carolina.
October 10 » The Great Hurricane of 1780 kills 20,000–30,000 in the Caribbean.
October 16 » The Great Hurricane of 1780 finishes after its sixth day, killing between 20,000 and 24,000 residents of the Lesser Antilles.
When copying data from this family tree, please include a reference to the origin: Huub Schepers, "Family tree Schepers uit Stein (Lb)", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-schepers/I57.php : accessed February 19, 2026), "Joannes Backhuys (-1780)".
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