Patriots Day
April 15, Monday
Massachusetts, Maine
April 19, Friday
Wisconsin, Connecticut, North Dakota, Florida
The holiday was originally celebrated on April 19, the actual anniversary of the battles (fought in 1775). Since 1969, it has been observed on the third Monday in April in Massachusetts and in Maine (which until the Missouri Compromise of 1820 was part of Massachusetts). The Monday holiday creates a three-day long weekend. It is also the first day of a vacation week for public schools in both states and a school holiday for many local colleges and universities, both public and private.
The day is a public school observance day in Wisconsin. Florida law also encourages people to celebrate it, though it is not treated as a legal holiday. Connecticut began observance in 2018 and North Dakota in 2019.