The temperature on April 6, 1775 was about 9.0 °C. Wind direction mainly north-northwest. Weather type: zeer betrokken. Special wheather fenomena: dauw. Source: KNMI
April 19 » American Revolutionary War: The war begins with an American victory in Concord during the battles of Lexington and Concord.
July 3 » American Revolutionary War: George Washington takes command of the Continental Army at Cambridge, Massachusetts.
October 18 » African-American poet Phillis Wheatley is freed from slavery.
October 18 » American Revolutionary War: The Burning of Falmouth (now Portland, Maine).
December 3 » USSAlfred becomes the first vessel to fly the Grand Union Flag (the precursor to the Stars and Stripes); the flag is hoisted by John Paul Jones.
December 31 » American Revolutionary War: Battle of Quebec: British forces repulse an attack by Continental Army General Richard Montgomery.
Christening day April 9, 1775
The temperature on April 9, 1775 was about 8.0 °C. Wind direction mainly north. Weather type: geheel betrokken. Special wheather fenomena: wat dauw. Source: KNMI
February 9 » American Revolutionary War: The British Parliament declares Massachusetts in rebellion.
June 12 » American Revolution: British general Thomas Gage declares martial law in Massachusetts. The British offer a pardon to all colonists who lay down their arms. There would be only two exceptions to the amnesty: Samuel Adams and John Hancock, if captured, were to be hanged.
July 8 » The Olive Branch Petition is signed by the Continental Congress of the Thirteen Colonies of North America.
August 23 » American Revolutionary War: King George III delivers his Proclamation of Rebellion to the Court of St James's stating that the American colonies have proceeded to a state of open and avowed rebellion.
September 25 » American Revolution: Ethan Allen surrenders to British forces after attempting to capture Montreal during the Battle of Longue-Pointe.
November 10 » The United States Marine Corps is founded at Tun Tavern in Philadelphia by Samuel Nicholas.
Day of death September 11, 1780
The temperature on September 11, 1780 was about 13.0 °C. Wind direction mainly east-southeast. Weather type: omtrent helder. Source: KNMI
April 16 » Franz Friedrich Wilhelm von Fürstenberg founds the University of Münster.
May 29 » American Revolutionary War: At the Battle of Waxhaws, the British continue attacking after the Continentals lay down their arms, killing 113 and critically wounding all but 53 that remained.
September 21 » American Revolutionary War: Benedict Arnold gives the British the plans to West Point.
October 2 » American Revolutionary War: John André, a British Army officer, is hanged as a spy by the Continental Army.
October 10 » The Great Hurricane of 1780 kills 20,000–30,000 in the Caribbean.
October 16 » The Great Hurricane of 1780 finishes after its sixth day, killing between 20,000 and 24,000 residents of the Lesser Antilles.
When copying data from this family tree, please include a reference to the origin: Marjon Root, "Family tree Root, Brinksma, Van Schoten en Molen", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-root/I1993.php : accessed January 7, 2026), "Ulbe Koopman (1775-1780)".
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