Final answer:
The Boston Massacre was a confrontation where British Red Coat soldiers fired upon a mob of colonists in Boston, leading to the death of five colonists and escalating the tensions that contributed to the American Revolutionary War.
Step-by-step explanation:
A mob of colonists in Boston faced off against British Red Coat soldiers, an event that became known as the Boston Massacre. This confrontation occurred after a long period of growing tensions between the colonists and the British authority over issues such as taxation and the presence of British troops in the colonies. British troops had been stationed in Boston to assert control and deal with unrest, leading to frequent clashes with colonists. The Boston Massacre was a culmination of these tensions, where the British soldiers fired upon the colonists, resulting in the deaths of five people. This incident significantly escalated the conflict, leading to heightened resistance and ultimately contributing to the outbreak of the American Revolutionary War.