The keyword "Patriots' Day holiday" functions as a noun phrase, serving as the subject of the inquiry. The term "when" is an interrogative adverb, indicating that the primary information required is temporal. Therefore, the main point is to define the specific date of this noun-subject.
Patriots' Day is a state holiday observed on the third Monday in April in Massachusetts and Maine. Connecticut began observing it as a statewide holiday in 2018, and it is a public school observance day in Wisconsin. The date was chosen to commemorate the Battles of Lexington and Concord, the first military engagements of the American Revolutionary War, which occurred on April 19, 1775. Originally observed on the fixed date of April 19, the holiday was shifted to the third Monday in Massachusetts in 1969 to create a three-day weekend.
This regional holiday is culturally significant and is often associated with the annual Boston Marathon, which has been held on this day since 1897. It is important to distinguish Patriots' Day from Patriot Day, which is a national day of remembrance observed on September 11 to honor the victims of the 2001 terrorist attacks. The date of the April holiday varies each year; it falls on April 15 in 2024, April 21 in 2025, and April 20 in 2026.
