June 25 » Venetian Elena Cornaro Piscopia is the first woman awarded a doctorate of philosophy when she graduates from the University of Padua.
August 3 » Robert LaSalle builds the Le Griffon, the first known ship built on the Great Lakes.
November 25 » Trunajaya rebellion: After a long and logistically challenging march, the allied Mataram and Dutch troops successfully assaulted the rebel stronghold of Kediri.
January 26 » The 8.7–9.2 Mw Cascadia earthquake takes place off the west coast of North America, as evidenced by Japanese records.
February 27 » The island of New Britain is discovered by Europeans.
February 28 » Today is followed by March 1 in Sweden, thus creating the Swedish calendar.
March 1 » Sweden introduces its own Swedish calendar, in an attempt to gradually merge into the Gregorian calendar, reverts to the Julian calendar on this date in 1712, and introduces the Gregorian calendar on this date in 1753.
When copying data from this family tree, please include a reference to the origin: J.J. Drabbe, "Family tree Drabbe", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-drabbe/I993.php : accessed February 16, 2026), "Johanna Bartholomeusdochter Somers (????-1700)".
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