March 6 » The first joint Secretary of the Royal Society, Henry Oldenburg, publishes the first issue of Philosophical Transactions of the Royal Society, the world's longest-running scientific journal.
April 8 » English colonial patents are granted for the establishment of the Monmouth Tract, for what would eventually become Monmouth County in northeastern New Jersey.
June 12 » Thomas Willett is appointed the first mayor of New York City.
October 5 » The University of Kiel is founded.
November 7 » The London Gazette, the oldest surviving journal, is first published.
December 10 » The Royal Netherlands Marine Corps is founded by Michiel de Ruyter
When copying data from this family tree, please include a reference to the origin: J Eijsermans, "Eijsermans family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eijsermans/I392763.php : accessed January 29, 2026), "Goort Cleijnenbreugel".
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