The siege of Boston was the longest siege in our nation’s history, running from April 19, 1775, to March 17, 1776. The “noble train of artillery” brought from Fort Ticonderoga by Colonel Henry Knox arrived in Boston on January 27, 1776, and it gave General George Washington the long-range guns he needed to bring the matter to an end.

At the beginning of April 1775, the British army was the unquestioned master-of-affairs in Massachusetts. Incredibly, in less than a year, England, the most powerful nation on earth, would be forced out of Boston, one of their most important colonial cities, by American militiamen.