May 24 » The Ashmolean Museum in Oxford, England, opens as the world's first university museum.
June 23 » William Penn signs a friendship treaty with Lenni Lenape Indians in Pennsylvania.
July 16 » Manchu Qing dynasty naval forces under traitorous commander Shi Lang defeat the Kingdom of Tungning in the Battle of Penghu near the Pescadores Islands.
September 12 » Austro-Ottoman War: Battle of Vienna: Several European armies join forces to defeat the Ottoman Empire.
September 17 » Antonie van Leeuwenhoek writes a letter to the Royal Society describing "animalcules".
November 1 » The British Crown colony of New York is subdivided into 12 counties.
When copying data from this family tree, please include a reference to the origin: Hans van Ekelenburg, "Family tree Van Ekelenburg", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-ekelenburg/I190.php : accessed January 10, 2026), "Pieter Baars (-1683)".
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