The fortification of Dorchester Heights. Painting by Louis S. Glanzman. Source: National Park Service
George Washington fortifies Dorchester Heights to provoke another battle with the British. The roar of cannons keeps Polly Sumner and others awake for nights. But General Gage decides he can’t afford more heavy losses like those he suffered on Breeds Hill, and he opts to remove his troops from Boston instead of attacking Dorchester Heights. The British troops sail away on March 17, which is still celebrated in Boston as Evacuation Day.
