Battles of Lexington and Concord April 19, 1775. An excellent video portrayal of the 'Shot Heard 'Round the World' from the 1988 adaptation of the classic novel by Howard Feast which takes place at the dawn of the American Revolution. The Battles of Lexington and Concord were the first military engagements of the American Revolutionary War. The battles were fought on April 19, 1775 in Middlesex County, Province of Massachusetts Bay, within the towns of Lexington, Concord, Lincoln, Menotomy, and Cambridge.