January 27 » American Revolutionary War: Henry Knox's "noble train of artillery" arrives in Cambridge, Massachusetts.
March 17 » American Revolution: The British Army evacuates Boston, ending the Siege of Boston, after George Washington and Henry Knox place artillery in positions overlooking the city.
May 19 » American Revolutionary War: A Continental Army garrison surrenders in the Battle of The Cedars.
August 2 » The signing of the United States Declaration of Independence took place.
September 17 » The Presidio of San Francisco is founded in New Spain.
November 20 » American Revolutionary War: British forces land at the Palisades and then attack Fort Lee. The Continental Army starts to retreat across New Jersey.
When copying data from this family tree, please include a reference to the origin: J. Ham, "Family tree Ham", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ham/I78121.php : accessed February 4, 2026), "Aaltje de Groot".
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