March 8 » Johannes Kepler discovers the third law of planetary motion.
May 15 » Johannes Kepler confirms his previously rejected discovery of the third law of planetary motion (he first discovered it on March 8 but soon rejected the idea after some initial calculations were made).
May 23 » The Second Defenestration of Prague precipitates the Thirty Years' War.
June 14 » Joris Veseler prints the first Dutch newspaper Courante uyt Italien, Duytslandt, &c. in Amsterdam (approximate date).
July 31 » Maurice, Prince of Orange disbands the waardgelders militia in Utrecht, a pivotal event in the Remonstrant/Counter-Remonstrant tensions.
October 29 » English adventurer, writer, and courtier Sir Walter Raleigh is beheaded for allegedly conspiring against James I of England.
March 18 » The Third Anglo-Powhatan War begins in the Colony of Virginia.
May 27 » Manchu regent Dorgon defeats rebel leader Li Zicheng of the Shun dynasty at the Battle of Shanhai Pass, allowing the Manchus to enter and conquer the capital city of Beijing.
July 2 » English Civil War: Battle of Marston Moor.
September 1 » Battle of Tippermuir: James Graham, 1st Marquess of Montrose defeats the Earl of Wemyss's Covenanters, reviving the Royalist cause.
October 13 » A Swedish–Dutch fleet defeats the Danish fleet at Fehmarn and captures about 1,000 prisoners.
November 23 » John Milton publishes Areopagitica, a pamphlet decrying censorship.
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/I392418.php : accessed February 1, 2026), "Margaretha "Magdalena" van Cleijnenbreugel (1618-????)".
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