This Day in History – April 19, 1775 Tags: 18th century American history, American Revolutionary War, April 19 1775, April 19 1775 history, Battles of Lexington and Concord, British regulars, British retreat to Boston, Captain John Parker, Colonial militia, historical paintings, Lexington Green, liberty and independence, Massachusetts history, Minutemen, Old North Bridge, Patriot resistance, Paul Revere's ride, Ralph Waldo Emerson, revolutionary origins, Shot heard round the world, skirmishes, start of the American Revolution, this day in history, this day in history 1775, This Day in History April 19, US History, William Diamond, Share on: Share: This is where the text will go.View our photo collection! View Collection