February 14 » American Revolutionary War: The Battle of Kettle Creek is fought in Georgia.
March 3 » American Revolutionary War: The Continental Army is routed at the Battle of Brier Creek near Savannah, Georgia.
June 1 » The court-martial for malfeasance of Benedict Arnold, a general in the Continental Army during the American Revolutionary War, begins.
June 16 » Spain declares war on the Kingdom of Great Britain, and the Great Siege of Gibraltar begins.
August 13 » American Revolutionary War: The Royal Navy defeats the Penobscot Expedition with the most significant loss of United States naval forces prior to the attack on Pearl Harbor.
September 23 » American Revolution: John Paul Jones, naval commander of the United States, on board the USSBonhomme Richard, wins the Battle of Flamborough Head.
Day of death May 9, 1780
The temperature on May 9, 1780 was about 17.0 °C. Wind direction mainly southwest. Weather type: zeer betrokken. Source: KNMI
January 16 » American Revolutionary War: Battle of Cape St. Vincent.
May 12 » American Revolutionary War: In the largest defeat of the Continental Army, Charleston, South Carolina is taken by British forces.
May 13 » The Cumberland Compact is signed by leaders of the settlers in the Cumberland River area of what would become the U.S. state of Tennessee, providing for democratic government and a formal system of justice.
October 16 » The Great Hurricane of 1780 finishes after its sixth day, killing between 20,000 and 24,000 residents of the Lesser Antilles.
November 4 » The Rebellion of Túpac Amaru II against Spanish rule in the Viceroyalty of Peru begins.
December 14 » Founding Father Alexander Hamilton marries Elizabeth Schuyler Hamilton at the Schuyler Mansion in Albany, New York
When copying data from this family tree, please include a reference to the origin: Charles Olson, "Olson's Tree", database, Genealogy Online (https://www.genealogieonline.nl/olsons-tree/P26499.php : accessed January 2, 2026), "Mary Webb (1779-1780)".
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