What provoked the American Revolution?

Economic conflict, Enlightenment ideologies and historical trends aside, among the leading proximate causes were the Coercive Acts of 1774, a number of British parliamentary decrees that came to be known on this side of the pond as the “Intolerable Acts.” The first four might fairly be considered revenge for the Boston Tea Party. First, the Boston Port Act authorized a blockade of Boston’s harbor until the locals paid up for the losses incurred by the British East India Company; next, the Massachusetts Government Act and the Administration of Justice Act both severely curtailed the authority of local government in the colonies (including over trials); and then the Quartering Act required locals to pay for the lodging of British soldiers in the colonies. 

A fifth act had little to do with Boston, at least as the British saw it: the Quebec Act of 1774. Concerned with the governance of New France after French territories in Canada were formally ceded to Great Britain in 1763, it established, among other concessions, the right of Catholics in British-occupied Canada to celebrate the sacraments and practice their faith freely. 

This, in the eyes of the would-be revolutionaries to the south, was the most intolerable act of them all.