It’s not just another three-day weekend, folks. It’s a huge part of our national – and regional – heritage.

Patriot’s Day was established over 100 years ago to commemorate the Battles of Lexington and Concord in 1775, the first battles of the American Revolutionary War. Re-enactments are staged and speeches are given, and a generally festive air of patriotic zeal pervades.

It is also the day when the Boston Marathon is run. Almost as venerable as the holiday itself, for many the event is a symbol of the resilience of the American spirit.

It’s also just a nice time to get outdoors and enjoy some of the fine early spring atmosphere. After the tough winter we all went through, an opportunity to drink in the warmth and regenerative power of the season is more than welcome.

So be sure to give some consideration to what the occasion is all about, and maybe join in the festivities at Foss Park on Monday morning. We can’t guarantee it, but we’d bet dollars to teabags that a warm tingle of patriotic exuberance may wash over you. Especially if you willingly give yourself over to the moment.

And remember, the city is looking for volunteers to help present the celebration. Both adults and Somerville students are welcome to sign up. You can contact Historic Events and Education Coordinator Brandon Wilson via bwilson@somervillema.gov or 617-776-3938 to volunteer if you’re interested.

If nothing else, you might snag a selfie with Paul Revere. Now, that will be something to show your grandchildren!