May 1 » American Revolution: The Battle of Crooked Billet begins in Hatboro, Pennsylvania.
May 12 » Heinrich XI, count of the Principality of Reuss-Greiz, is elevated to Prince by Joseph II, Holy Roman Emperor.
August 3 » The theatre La Scala in Milan is inaugurated with the première of Antonio Salieri's Europa riconosciuta.
August 21 » American Revolutionary War: British forces begin besieging the French outpost at Pondichéry.
September 7 » American Revolutionary War: France invades Dominica in the British West Indies, before Britain is even aware of France's involvement in the war.
September 17 » The Treaty of Fort Pitt is signed. It is the first formal treaty between the United States and a Native American tribe.
When copying data from this family tree, please include a reference to the origin: Frederike Willemse van Diermen, "Family tree Willemse", database, Genealogy Online (https://www.genealogieonline.nl/willemse-stamboom/I507424.php : accessed May 6, 2024), "Jacob Heemskerken (1778-????)".
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