"The Shot Heard Round The World."
After the short firefight at Lexington, the British force of approximately 700 marines led by Lt.Col. Francis Smith and Maj. John Pitcairn marched off to Concord. There the Americans already had carried off most of their stores, but the British destroyed what they could (gun carriages, entrenching tools, flour and a liberty pole).At Concord's North Bridge the growing American forces inflicted fourteen casualties on a British platoon, and about noon Smith began marching his forces back to Boston. The road back had turned into a gauntlet as the embattled farmers from "every Middlesex village and farm" sniped from behind stone walls, trees, barns, houses, all the way back to Charlestown peninsula.
By nightfall the British survivors were safe under the protection of the fleet and army at Boston, having lost 273 men along the way, while the Americans lost 95.