Puritanism was never a coherent, organised movement. Instead, it was a loose coalition of largely Calvinistic groups opposed to the Anglican Church in an attempt to "purify" it. The largest of these groups were the Independents (who became Congregationalists), the most influential in Parliament (and a thorn in the side of the Monarchy) were the Presbyterians. Some Puritans stayed in the Anglican Church and attempted to reform it from the inside. Another group of Separatists left England, settled in Holland for a decade and then sailed to America and were known as Pilgrims.
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