Welcome to the 250th Commemoration Saturday, April 19, 2025, will mark the 250th anniversary of the Battle of Lexington and Concord, the opening battles of the American Revolutionary War. It was here that British Colonists bravely defended their ideals of liberty and self-determination. Join us for this momentous occasion, when many events are planned throughout the day at Minute Man National Historical Park and the surrounding towns of Lexington and Concord.