what does patriots day celebrate?
<answer> Patriots day celebrated as a civic holiday commemorating the anniversary of the Battles of Lexington and Concord, the first battles of the American Revolutionary War. <context> Patriots' Day is observed on April 16, 2018. Patriots' Day (officially Patriots' Day in Massachusetts and Patriot's Day in Maine) is a civic holiday commemorating the anniversary of the Battles of Lexington and Concord, the first battles of the American Revolutionary War. It is observed on the third Monday in April in Massachusetts and Maine, and is a public school observance day in Wisconsin.