This Day in History – July 3, 1775 Tags: 18th century American history, American Revolutionary War, birth of the US Army, Cambridge Massachusetts, Commander-in-Chief, Continental Army, Continental Army leadership, George Washington, George Washington portrait, historical milestones, July 3 1775, July 3 1775 history, Massachusetts history, military command, Revolutionary Era, Second Continental Congress, Siege of Boston, this day in history, this day in history 1775, This Day in History July 3, US History, war for independence, Share on: Share: This is where the text will go.View our photo collection! View Collection