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.
Day of marriage December 18, 1722
The temperature on December 18, 1722 was about 7.0 °C. Source: KNMI
March 15 » In an emotional speech in Newburgh, New York, George Washington asks his officers not to support the Newburgh Conspiracy. The plea is successful and the threatened coup d'état never takes place.
June 8 » Laki, a volcano in Iceland, begins an eight-month eruption which kills over 9,000 people and starts a seven-year famine.
July 24 » The Kingdom of Georgia and the Russian Empire sign the Treaty of Georgievsk.
November 3 » The American Continental Army is disbanded.
November 25 » American Revolutionary War: The last British troops leave New York City three months after the signing of the Treaty of Paris.
December 23 » George Washington resigns as commander-in-chief of the Continental Army at the Maryland State House in Annapolis, Maryland.
When copying data from this family tree, please include a reference to the origin: Brian Kennedy, "Kennedy Family Tree", database, Genealogy Online (https://www.genealogieonline.nl/kennedy-family-tree/P9577.php : accessed May 3, 2025), "Rebecca Hatch (1700-1783)".
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