British forces evacuate Boston, ending 11-month siege 240 years ago this hour (Mar 17 1776)


Video: 'The Revolution: Rebelling To Revolution' (Mar. 17, 1776, at 43:30)

(Sunday, March 17, 1776, 9:00 a.m. local time; during the American Revolutionary War and the American Revolution) — Threatened by Patriot cannons on Dorchester Heights, the British evacuated Boston today, ending the 11-month Siege of Boston.