The term "Patriots Day 2017" functions as a Proper Noun Phrase. Specifically, "Patriots Day" is a compound proper noun referring to a distinct legal holiday, and "2017" is a numerical adjective specifying the particular year of its observance. The primary part of speech for the core subject "Patriots Day" is a Proper Noun.
Patriots' Day is a legal holiday primarily observed in Massachusetts, Maine, and Wisconsin on the third Monday of April. It commemorates the anniversary of the Battles of Lexington and Concord, which took place on April 19, 1775, marking the initial armed conflicts of the American Revolutionary War. In 2017, Patriots' Day was observed on Monday, April 17th. This date is notably synonymous with the annual Boston Marathon, a major international road race traditionally held on Patriots' Day, beginning in Hopkinton, Massachusetts, and concluding in Boston. The 2017 Boston Marathon was the 121st running of the event, further solidifying the day's dual significance as both a historical commemoration and a premier athletic event.
Therefore, "Patriots Day 2017" precisely denotes the specific occurrence of this historical and culturally significant holiday on April 17, 2017, encapsulating its dual roles in commemorating the genesis of the American Revolution and hosting the Boston Marathon.
