March 13 » The Battle of Cartagena de Indias (part of the War of Jenkins' Ear) begins.
March 18 » New York governor George Clarke's complex at Fort George is burned in an arson attack, starting the New York Conspiracy of 1741.
April 10 » War of the Austrian Succession: Prussia gains control of Silesia at the Battle of Mollwitz.
May 20 » The Battle of Cartagena de Indias ends in a Spanish victory and the British begin withdrawal towards Jamaica with substantial losses.
June 25 » Maria Theresa is crowned Queen of Hungary.
August 10 » King Marthanda Varma of Travancore defeats the Dutch East India Company at the Battle of Colachel, effectively bringing about the end of the Dutch colonial rule in India.
Day of death March 7, 1781
The temperature on March 7, 1781 was about 12.0 °C. Wind direction mainly north west from. Weather type: geheel betrokken. 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.
January 5 » American Revolutionary War: Richmond, Virginia, is burned by British naval forces led by Benedict Arnold.
February 3 » American Revolutionary War: British forces seize the Dutch-owned Caribbean island Sint Eustatius.
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.
June 3 » Jack Jouett begins his midnight ride to warn Thomas Jefferson and the Virginia legislature of an impending raid by Banastre Tarleton.
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: Charles Olson, "Olson's Tree", database, Genealogy Online (https://www.genealogieonline.nl/olsons-tree/P2069.php : accessed January 9, 2026), "Mary Low Chadwick Porter (1721-1781)".
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