Boston Massacre

On March 5, 1770, British soldiers of the 29th Regiment under Captain Thomas Preston fired into a crowd on King Street in Boston, Massachusetts, after a confrontation that began with insults, thrown snowballs, and clubs. Crispus Attucks, Samuel Gray, James Caldwell, Samuel Maverick, and Patrick Carr were killed or mortally wounded in the shooting. Paul Revere quickly circulated an engraving of the incident, and John Adams later defended Preston and the soldiers in court to show that even an unpopular defendant deserved a lawful trial in Massachusetts.

The killings sharpened the dispute created by the Townshend duties and the stationing of British troops in Boston in 1768. Samuel Adams and other patriot leaders used the funeral procession and annual commemorations to present the shooting as proof that a standing army threatened English liberty when civil authority weakened. At the same time, the trial in Boston revealed a second tension inside the imperial crisis: patriots denounced ministerial policy while insisting that constitutional liberty still required due process and trial by jury.

The Boston Massacre fed directly into the campaign against the remaining Townshend duty on tea and helped sustain the political culture that produced the Boston Tea Party in December 1773. Its memory also shaped later revolutionary arguments in the Declaration of Independence, which accused George III of keeping standing armies among the colonists without the consent of their legislatures.