Johnny Tremain is a historical novel by Esther Forbes, set in pre-Revolutionary Boston, that follows a young silversmith apprentice, Johnny, who is forced to find new work after a hand injury, leading him to become a messenger for the Sons of Liberty and witness key events like the Boston Tea Party and the Battles of Lexington and Concord. The book, a Newbery Medal winner, explores themes of patriotism, sacrifice, and coming-of-age through Johnny's journey alongside historical figures like John Hancock and Samuel Adams.