This Day in History – April 18, 1775 Tags: "one if by land two if by sea", 18th century American history, American Revolution origins, April 18 1775, April 18 1775 history, Boston History, British army approach, Colonial militia, Dr. Joseph Warren, Henry Wadsworth Longfellow, historical illustrations, historical myths vs facts tags, John Hancock, lantern signals, Lexington and Concord, Massachusetts, Midnight Ride of Paul Revere, Old North Church, Patriot messengers, Paul Revere, Paul Revere's Ride poem, revolutionary legends, Samuel Adams, Sons of Liberty, this day in history, this day in history 1775, This Day in History April 18, US History, William Dawes, Share on: Share: This is where the text will go.View our photo collection! View Collection