The primary outcome of the Boston Massacre, which occurred on March 5, 1770, was the intensification of anti-British sentiments in the American colonies. A confrontation between British soldiers and a colonial mob resulted in the deaths of five civilians, amplifying calls for colonial unity against British oppression. The event was leveraged as a propaganda tool by revolutionary leaders like Samuel Adams and Paul Revere, galvanizing public opinion and fueling revolutionary fervor. This incident ultimately contributed to the growing desire for independence and precipitated further acts of defiance, leading to the American Revolution.