Answer :

Mainly for religious freedom, they were being persecuted, ridiculed, ostracized, and penalized for there worship. They didn't have any freedom. (coming from an atheist)

Answer:

The foundation of the American colonies represented a unique event in world history, since they were founded in some cases with religious and biblical ideological raises and one of their first dogmas was religious tolerance. The reason for this was that many of the first pilgrims who settled in the 'New England' of America in the early seventeenth century were Puritan refugees fleeing religious persecutions in Europe.