Answer:
Boston Massacre
Step-by-step explanation:
You'd think it would take a while to build up enough tension to get to a "massacre," but it didn't. The Boston Massacre took place in 1770, a few years before the rest of these events.
Boston Massacre - March 5, 1770
Boston Tea Party - December 16, 1773
Coercive Acts - 1774
First Continental Congress - September 5, 1774