April 14 » The first abolition society in North America is established. The Society for the Relief of Free Negroes Unlawfully Held in Bondage is organized in Philadelphia by Benjamin Franklin and Benjamin Rush.
April 18 » American Revolution: The British advancement by sea begins; Paul Revere and other riders warn the countryside of the troop movements.
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.
June 17 » American Revolutionary War: Colonists inflict heavy casualties on British forces while losing the Battle of Bunker Hill.
July 8 » The Olive Branch Petition is signed by the Continental Congress of the Thirteen Colonies of North America.
July 27 » Founding of the U.S. Army Medical Department: The Second Continental Congress passes legislation establishing "an hospital for an army consisting of 20,000 men."
When copying data from this family tree, please include a reference to the origin: Christophe, "Arbre Chatelain", database, Genealogy Online (https://www.genealogieonline.nl/arbre-chatelain/I2670.php : accessed October 23, 2026), "Marie Anne COLIN".
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