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.
January 18 » Frederick I crowns himself King of Prussia in Königsberg.
March 9 » Safavid troops retreat from Basra, ending a three year occupation.
July 19 » Representatives of the Iroquois Confederacy sign the Nanfan Treaty, ceding a large territory north of the Ohio River to England.
July 24 » Antoine de la Mothe Cadillac founds the trading post at Fort Pontchartrain, which later becomes the city of Detroit.
September 16 » James Francis Edward Stuart, sometimes called the "Old Pretender", becomes the Jacobite claimant to the thrones of England and Scotland.
October 9 » The Collegiate School of Connecticut (later renamed Yale University) is chartered in Old Saybrook.
When copying data from this family tree, please include a reference to the origin: B.J. Jansen, "Family tree Jansen", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-jansen/I33495.php : accessed March 3, 2026), "Margaretha Specker (-1701)".
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