The term "patriots day america" functions grammatically as a proper noun phrase. "Patriots Day" is the core proper noun, which is the official name of a holiday. The word "America" acts as a specifier or an adjectival noun, modifying the core noun to place it in a specific national context. The entire phrase operates as a single unit to name a specific entity.
This holiday commemorates the Battles of Lexington and Concord, the initial armed conflicts of the American Revolutionary War, which occurred on April 19, 1775. It is a statutory holiday observed on the third Monday of April in Massachusetts and Maine. Wisconsin observes it as a public school holiday on April 19, and Connecticut began recognizing it as a statewide day of observance in 2018. Major events include historical reenactments of the battles and Paul Revere's ride. The most widely known modern event held on this day is the Boston Marathon, which has been run annually on the holiday since 1897.
The observance is a regional celebration of the spirit of the American Revolution, civic duty, and the beginning of the quest for independence. It is important to distinguish this holiday from Patriot Day, a separate national day of remembrance held on September 11 to honor the victims of the 2001 terrorist attacks. Due to its long association with the Boston Marathon, the day has also taken on modern cultural significance related to resilience, athletic endurance, and community spirit, particularly in the aftermath of the 2013 marathon bombing.