Marathon Monday is a wonderful tradition in Boston going back 117 years. It is Patriot’s Day as well. An occasion celebrated by the reenactment at dawn of the battle that took place between the Minutemen and the British in Lexington on April 19, 1775. The Red Sox play at 11am so fans can leave Fenway Park to cheer on the runners as they start on their last mile in this grueling contest. Thousands show up along the 26.2 miles from the starting line to Copley Square providing water, oranges and encouragement to those making this trek. It's a grand day, perhaps Boston's finest of the year.