This is the eighth and final part of a series.

If you traveled back to Boston exactly 250 years ago today, the roar you would hear would not be from Patriot fans at a football game, but the sound of patriot artillery that had been hauled by Henry Knox from Fort Ticonderoga firing into the city. Redcoat Col. Charles Stuart explained what happened in a letter home.

“The bombardment continued for five nights, and a nobler scene it was impossible to behold: sheets of fire seemed to come from our…