Final answer:
The First Continental Congress in 1774 was different from previous efforts to resist Britain due to the high level of inter-colonial cooperation, the formal response to the Intolerable Acts, and the presence of more radical factions advocating for separation.
Step-by-step explanation:
The First Continental Congress, which took place in 1774, was different from previous organized efforts to resist Britain in several ways. First, it was made up of elected representatives from twelve of the thirteen American colonies, demonstrating a high level of inter-colonial cooperation. Second, the Congress aimed to respond formally to the Intolerable Acts by drafting a list of grievances and a statement of the rights of the colonists. Finally, the Congress represented a shift towards more radical factions advocating for separation from the British Crown, rather than a conciliatory approach proposed by Joseph Galloway of Pennsylvania.