The subject of the query, the proper noun "Patriots' Day," designates a state holiday in the United States. In the year 2025, it will be observed on Monday, April 21. The date is determined by its official observance on the third Monday in April in the states that recognize it.
This holiday commemorates the anniversary of the Battles of Lexington and Concord, which occurred on April 19, 1775, marking the start of the American Revolutionary War. Historically, the holiday was observed on the fixed date of April 19th. However, in 1969, both Massachusetts and Maine moved the observance to the third Monday of the month to create a three-day weekend. The holiday is an official state holiday in Massachusetts, Maine, and Wisconsin; it is also a public school holiday in Connecticut.
The practical application of knowing this date is crucial for planning and logistics, particularly in New England. The most significant event tied to the holiday is the Boston Marathon, which has been held on Patriots' Day since 1897. Therefore, April 21, 2025, will also be the date of the 129th running of this major international sporting event, impacting travel and business operations throughout the Boston metropolitan area.
