The siege of Boston was the longest in our nation’s history, running from April 19, 1775, to March 17, 1776. The guns brought from Fort Ticonderoga by Colonel Henry Knox gave General George Washington what he needed to force the British to evacuate.

The siege of Boston, which began after the Battles of Lexington and Concord, could not have been broken by the colonists without long range artillery. Fortunately, the Continental Army had a large supply of these guns 300 miles away at Fort Ticonderoga.