May 7 » The city of New Orleans is founded by Jean-Baptiste Le Moyne, Sieur de Bienville.
May 15 » James Puckle, a London lawyer, patents the world's first machine gun.
June 26 » Alexei Petrovich, Tsarevich of Russia, Peter the Great's son, mysteriously dies after being sentenced to death by his father for plotting against him.
November 22 » Off the coast of North Carolina, British pirate Edward Teach (best known as "Blackbeard") is killed in battle with a boarding party led by Royal Navy Lieutenant Robert Maynard.
November 30 » King Charles XII of Sweden dies during a siege of the fortress of Fredriksten in Norway.
December 17 » War of the Quadruple Alliance: Great Britain declares war on Spain.
Day of marriage May 7, 1743
The temperature on May 7, 1743 was about 9.0 °C. There was 2 mm of rainWind direction mainly southwest. Weather type: regen geheel betrokken. Source: KNMI
February 23 » American Revolutionary War: Baron von Steuben arrives at Valley Forge, Pennsylvania to help to train the Continental Army.
May 12 » Heinrich XI, count of the Principality of Reuss-Greiz, is elevated to Prince by Joseph II, Holy Roman Emperor.
June 18 » American Revolutionary War: British troops abandon Philadelphia.
July 10 » American Revolution: Louis XVI of France declares war on the Kingdom of Great Britain.
July 27 » American Revolution: First Battle of Ushant: British and French fleets fight to a standoff.
December 29 » American Revolutionary War: Three thousand British soldiers under the command of Lieutenant Colonel Archibald Campbell capture Savannah, Georgia.
Day of burial October 24, 1778
The temperature on October 24, 1778 was about 14.0 °C. There was 44 mm of rainWind direction mainly south-southwest. Weather type: regen zeer betrokken. Source: KNMI
September 17 » The Treaty of Fort Pitt is signed. It is the first formal treaty between the United States and a Native American tribe.
December 29 » American Revolutionary War: Three thousand British soldiers under the command of Lieutenant Colonel Archibald Campbell capture Savannah, Georgia.
When copying data from this family tree, please include a reference to the origin: Tjitze Koster, "Family tree Koster Twijslerheide e.o.", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-koster/I3725.php : accessed February 18, 2026), "Johannes de Keijser (1718-1778)".
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