Patriots' Day is observed annually on the third Monday in April. This date commemorates the Battles of Lexington and Concord, which took place on April 19, 1775, marking the start of the American Revolutionary War. While the historical event occurred on a specific calendar date, the modern observance shifts to the nearest Monday to create a three-day weekend.
Regarding the keyword term "Patriots Day," it functions as a proper noun phrase or a compound proper noun. In this construction, "Patriots" is a plural possessive noun (or a plural noun acting attributively) modifying "Day," which is a common noun. Together, they form a specific, named entitya holiday. Therefore, the phrase "Patriots Day" as a whole is categorized as a noun, as it names a particular event or observance. This classification is crucial for its use as a substantive term in historical, cultural, or calendrical contexts.
This holiday is primarily celebrated in Massachusetts, Maine, and Wisconsin, and it is notable for coinciding with the Boston Marathon. The observance serves as a significant cultural touchstone in these regions, reflecting on the historical origins of the United States and the spirit of civic resistance.