What is the X in X-mas?
any of the English Christians in the 16th and 17th centuries who wished to separate from the Church of England and form independent local churches. They were eventually called Congregationalists. Separatists were most influential politically in England during the time of the Commonwealth (1649-60) under Oliver Cromwell, the lord protector, who was himself a Separatist. Subsequently, they survived repression and gradually became an important religious minority in England.