January 16 » Forces of the Maratha Empire defeat a 5,000-strong army of the Durrani Empire in the Battle of Narela.
March 14 » Admiral Sir John Byng is executed by firing squad aboard HMSMonarch for breach of the Articles of War.
May 6 » Battle of Prague: A Prussian army fights an Austrian army in Prague during the Seven Years' War.
June 18 » Battle of Kolín between Prussian forces under Frederick the Great and an Austrian army under the command of Field Marshal Count Leopold Joseph von Daun in the Seven Years' War.
November 5 » Seven Years' War: Frederick the Great defeats the allied armies of France and the Holy Roman Empire at the Battle of Rossbach.
December 31 » Empress Elizabeth I of Russia issues her ukase incorporating Königsberg into Russia.
Day of marriage December 30, 1780
The temperature on December 30, 1780 was about 4.0 °C. There was 22 mm of rainWind direction mainly northwest. Weather type: zeer betrokken. Source: KNMI
January 16 » American Revolutionary War: Battle of Cape St. Vincent.
August 22 » James Cook's ship HMSResolution returns to England (Cook having been killed on Hawaii during the voyage).
September 11 » American Revolutionary War: Sugarloaf Massacre: A small detachment of militia from Northampton County are attacked by Native Americans and Loyalists near Little Nescopeck Creek.
September 23 » American Revolution: British Major John André is arrested as a spy by American soldiers exposing Benedict Arnold's change of sides.
October 10 » The Great Hurricane of 1780 kills 20,000–30,000 in the Caribbean.
December 14 » Founding Father Alexander Hamilton marries Elizabeth Schuyler Hamilton at the Schuyler Mansion in Albany, New York
Day of death April 9, 1788
The temperature on April 9, 1788 was about 8.0 °C. Wind direction mainly northwest. Weather type: omtrent helder. Source: KNMI
January 18 » The first elements of the First Fleet carrying 736 convicts from Great Britain to Australia arrive at Botany Bay.
January 20 » The third and main part of First Fleet arrives at Botany Bay. Arthur Phillip decides that Port Jackson is a more suitable location for a colony.
February 6 » Massachusetts becomes the sixth state to ratify the United States Constitution.
April 28 » Maryland becomes the seventh state to ratify the United States Constitution.
May 23 » South Carolina ratifies the United States Constitution as the eighth American state.
December 22 » Nguyễn Huệ proclaims himself Emperor Quang Trung, in effect abolishing on his own the Lê dynasty.
When copying data from this family tree, please include a reference to the origin: J. van Broekhoven, "Database Van Broekhoven", database, Genealogy Online (https://www.genealogieonline.nl/database-van-broekhoven/I119772.php : accessed April 30, 2025), "Jacomina "Willemijn" Sitters (1757-1788)".
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