The Puritans were a religious movement associated with Protestantism, which defended an extreme moral rigidity with customs of evangelical morality. was also called Calvinism and took place in modern science. It constituted religious struggles and its crisis began with the rejection to the rebirth and did not manage to impose its dogma in the social structures, for this they carried out many battles in the attempt to take the doctrine without obtaining the result. As a result of the crisis suffered today is professed among the Anglican faithful with little trace of it, many Puritans fled to other countries where they then introduced Presbyterianism from the Calvinist reform of the Church of Scotland.