January 3 » American General George Washington defeats British General Lord Cornwallis at the Battle of Princeton.
August 6 » American Revolutionary War: The bloody Battle of Oriskany prevents American relief of the Siege of Fort Stanwix.
September 27 » American Revolution: Lancaster, Pennsylvania becomes the capital of the United States for one day after Congress evacuates Philadelphia.
October 17 » American Revolutionary War: British General John Burgoyne surrenders his army at Saratoga, New York.
November 29 » San Jose, California, is founded as Pueblo de San José de Guadalupe by José Joaquín Moraga. It is the first civilian settlement, or pueblo, in Alta California.
December 19 » American Revolutionary War: George Washington's Continental Army goes into winter quarters at Valley Forge, Pennsylvania.
Day of death May 20, 1780
The temperature on May 20, 1780 was about 10.0 °C. Wind direction mainly north-northwest. Weather type: zeer betrokken. Source: KNMI
January 16 » American Revolutionary War: Battle of Cape St. Vincent.
March 14 » American Revolutionary War: Spanish forces capture Fort Charlotte in Mobile, Alabama, the last British frontier post capable of threatening New Orleans.
April 16 » Franz Friedrich Wilhelm von Fürstenberg founds the University of Münster.
May 29 » American Revolutionary War: At the Battle of Waxhaws, the British continue attacking after the Continentals lay down their arms, killing 113 and critically wounding all but 53 that remained.
August 22 » James Cook's ship HMSResolution returns to England (Cook having been killed on Hawaii during the voyage).
November 9 » American Revolutionary War: In the Battle of Fishdam Ford a force of British and Loyalist troops fail in a surprise attack against the South Carolina Patriot militia under Brigadier General Thomas Sumter.
When copying data from this family tree, please include a reference to the origin: R.A.Hemerik, "Descendants Hemerik-Broekhuizen-Huner-Koper-Barink", database, Genealogy Online (https://www.genealogieonline.nl/parenteel-hemerik/I1040.php : accessed January 17, 2026), "Jacob Martinus van Ankeren (1777-1780)".
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