Patriots' Day is a state-level civic holiday, primarily observed in Massachusetts, Maine, and Wisconsin on the third Monday in April. The keyword "Patriots' Day" is a proper noun that names this specific observance. It commemorates the anniversary of the Battles of Lexington and Concord, which were the first armed conflicts of the American Revolutionary War on April 19, 1775. It is a holiday of historical remembrance, celebrating the colonists who first took up arms against British authority.
Unlike a federal holiday, its observance is legislated at the state level, reflecting its deep regional significance. The day is marked by a blend of solemn reenactments and festive civic traditions. In Massachusetts, historical societies and minuteman companies conduct elaborate reenactments of Paul Revere's ride and the battles themselves in the towns of Lexington and Concord. The holiday is also intrinsically linked to major sporting events, most notably the Boston Marathon, which has been held on Patriots' Day since 1897, and a traditional morning home game for the Boston Red Sox baseball team at Fenway Park.
In practice, Patriots' Day functions as a holiday that celebrates the origins of American civic action and liberty, with a distinct focus on the specific events that triggered the Revolutionary War. It differs from national holidays like Independence Day, which celebrates the nation's official founding, by instead highlighting the initial, localized acts of armed resistance. The combination of historical commemoration, public ceremonies, and contemporary cultural events makes it a unique and deeply integrated regional holiday.