The Puritans were originally members of a group of English Protestants seeking "purity", further reforms or even separation from the established church, during the Reformation. The group is also extended to include some early colonial American ministers and important lay-leaders. The majority of people in this list were mainstream Puritans, adhering strictly to the doctrine of Predestination. The more moderate ones, who tended towards Arminianism, have the label "Arminian" behind their names.