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 November 12, 1720
The temperature on November 12, 1720 was about 7.0 °C. Source: KNMI
January 21 » Sweden and Prussia sign the Treaty of Stockholm.
February 29 » Ulrika Eleonora, Queen of Sweden abdicates in favour of her husband, who becomes King Frederick I on March 24.
March 24 » Count Frederick of Hesse-Kassel is elected King of Sweden by the Riksdag of the Estates, after his consort Ulrika Eleonora abdicated the throne on 29 February
August 14 » The Spanish military Villasur expedition is wiped out by Pawnee and Otoe warriors near present-day Columbus, Nebraska.
October 20 » Caribbean pirate Calico Jack is captured by the Royal Navy.
November 9 » The synagogue of Judah HeHasid is burned down by Arab creditors, leading to the expulsion of the Ashkenazim from Jerusalem.
Day of death February 8, 1778
The temperature on February 8, 1778 was about 1.0 °C. Wind direction mainly south-southeast. Weather type: helder. Source: KNMI
January 18 » James Cook is the first known European to discover the Hawaiian Islands, which he names the "Sandwich Islands".
February 5 » South Carolina becomes the second state to ratify the Articles of Confederation.
February 14 » The United States flag is formally recognized by a foreign naval vessel for the first time, when French Admiral Toussaint-Guillaume Picquet de la Motte renders a nine gun salute to USSRanger, commanded by John Paul Jones.
February 23 » American Revolutionary War: Baron von Steuben arrives at Valley Forge, Pennsylvania to help to train the Continental Army.
July 27 » American Revolution: First Battle of Ushant: British and French fleets fight to a standoff.
December 15 » American Revolutionary War: British and French fleets clash in the Battle of St. Lucia.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I86411.php : accessed February 19, 2026), "Margrieta Grimmius (1700-1778)".
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