The Boston Massacre was a confrontation in Boston on March 5, 1770, in which nine British soldiers shot several of a crowd of three or four hundred who were harassing them verbally and throwing various projectiles. The event was heavily publicized as “a massacre” by leading Patriots such as Paul Revere and Samuel Adams. The colonists did not want to give the British a pretext for retaliation, and so preparations were made to ensure a fair trial. A young lawyer named John Adams, despite his commitment to the revolutionary cause, agreed to defend the Redcoats, all but two of whom were acquitted.

Even though British troops were recalled from Boston, the incident inflamed hostilities and intensified revolutionary sentiment among the colonists. For the revolutionaries, the so-called massacre demonstrated the corrupting influence of standing armies and the tyranny of the British. It was a major signpost on the road to revolution and set the groundwork for the American Revolution; indeed, John Adams later claimed that the “foundation of American independence was laid” that fateful day of March 5, 1770.