WHAT ALL HAPPENED APRIL TO SEPTEMBER 1775
Find out what all happened April to September 1775

American Revolutionary War: Representatives from the Thirteen Colonies begin the Second Continental Congress in Philadelphia. (10. May 1775)

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, Pennsylvania by Benjamin Franklin and Benjamin Rush. (14. April 1775)

American Revolution: The Mecklenburg Resolves are allegedly adopted in the Province of North Carolina. (31. May 1775)

Benedict Arnold's expedition to Quebec leaves Cambridge, Massachusetts. (11. September 1775)

The Spanish establish the Presidio San Augustin del Tucson in the town that became Tucson, Arizona. (20. August 1775)

American Revolutionary War: George Washington is appointed commander-in-chief of the Continental Army. (15. June 1775)

American Revolutionary War: Ethan Allen surrenders to British forces after attempting to capture Montreal during the Battle of Longue-Pointe. Benedict Arnold and his expeditionary company set off from Fort Western, bound for Quebec City. (25. September 1775)

The office that would later become the United States Post Office Department is established by the Second Continental Congress. (26. July 1775)

American Revolutionary War: the Continental Congress bans trade with Quebec. (17. May 1775)

American Revolutionary War: the Continental Army is established by the Continental Congress, marking the birth of the United States Army. (14. June 1775)

Mecklenburg Declaration of Independence is signed in Charlotte, North Carolina (20. May 1775)

American Revolutionary War: A small Colonial militia led by Ethan Allen and Colonel Benedict Arnold captures Fort Ticonderoga. (10. May 1775)

American Revolutionary War: the Siege of Boston begins, following the battles at Lexington and Concord. (20. April 1775)

American Revolutionary War: The Invasion of Canada begins with the Siege of Fort St. Jean. (17. September 1775)

American Revolutionary War: George Washington takes command of the Continental Army at Cambridge, Massachusetts. (3. July 1775)

The Olive Branch Petition is signed by the Continental Congress of the Thirteen Colonies. (8. July 1775)

The Second Continental Congress adopts the Olive Branch Petition. (5. July 1775)

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. (12. June 1775)

American Revolutionary War: The war begins with an American victory in Concord during the battles of Lexington and Concord. (19. April 1775)

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. (23. August 1775)