January 3 » American General George Washington defeats British General Lord Cornwallis at the Battle of Princeton.
September 11 » American Revolutionary War: Battle of Brandywine: The British celebrate a major victory in Chester County, Pennsylvania.
September 27 » American Revolution: Lancaster, Pennsylvania becomes the capital of the United States for one day after Congress evacuates Philadelphia.
October 6 » American Revolutionary War: British forces capture Forts Clinton and Montgomery on the Hudson River.
December 18 » The United States celebrates its first Thanksgiving, marking the recent victory by the American rebels over British General John Burgoyne at Saratoga in October.
December 24 » Kiritimati, also called Christmas Island, is discovered by James Cook.
Christening day February 1, 1778
The temperature on February 1, 1778 was about -1.0 °C. Wind direction mainly east. Weather type: betrokken mist. Source: KNMI
January 18 » James Cook is the first known European to discover the Hawaiian Islands, which he names the "Sandwich Islands".
February 9 » Rhode Island becomes the fourth US 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.
May 12 » Heinrich XI, count of the Principality of Reuss-Greiz, is elevated to Prince by Joseph II, Holy Roman Emperor.
July 10 » American Revolution: Louis XVI of France declares war on the Kingdom of Great Britain.
September 17 » The Treaty of Fort Pitt is signed. It is the first formal treaty between the United States and a Native American tribe.
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/I6021.php : accessed October 22, 2026), "Petrus Albert Couperus (1777-????)".
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