February 4 » The city of Macapá in Brazil is founded by Sebastião Veiga Cabral.
May 21 » Ten-year-old Mary Campbell is abducted in Pennsylvania by Lenape during the French and Indian War. She is returned six and a half years later.
June 30 » Seven Years' War: Habsburg Austrian forces destroy a Prussian reinforcement and supply convoy in the Battle of Domstadtl, helping to expel Prussian King Frederick the Great from Moravia.
July 26 » French and Indian War: The Siege of Louisbourg ends with British forces defeating the French and taking control of the Gulf of Saint Lawrence.
November 25 » French and Indian War: British forces capture Fort Duquesne from French control. Later, Fort Pitt will be built nearby and grow into modern Pittsburgh.
December 25 » Halley's Comet is sighted by Johann Georg Palitzsch, confirming Edmund Halley's prediction of its passage. This was the first passage of a comet predicted ahead of time.
Day of marriage May 9, 1784
The temperature on May 9, 1784 was about 12.0 °C. Wind direction mainly west. Weather type: zeer betrokken. Special wheather fenomena: noorderlicht. Source: KNMI
January 14 » American Revolutionary War: Ratification Day, United States - Congress ratifies the Treaty of Paris with Great Britain.
March 11 » The signing of the Treaty of Mangalore brings the Second Anglo-Mysore War to an end.
April 9 » The Treaty of Paris, ratified by the United States Congress on January 14, 1784, is ratified by King George III of the Kingdom of Great Britain, ending the American Revolutionary War. Copies of the ratified documents are exchanged on May 12, 1784.
August 17 » Classical composer Luigi Boccherini receives a pay rise of 12000 reals from his employer, the Infante Luis, Count of Chinchón.
August 23 » Western North Carolina (now eastern Tennessee) declares itself an independent state under the name of Franklin; it is not accepted into the United States, and only lasts for four years.
October 22 » Russia founds a colony on Kodiak Island, Alaska.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I17283.php : accessed January 2, 2026), "Pieter Piers (1758-< 1816)".
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