Congregationalism in the United States consists of Protestant churches in the Reformed tradition that have a congregational form of church government and trace their origins mainly to Puritan settlers of colonial New England. Congregational churches in other parts of the world are often related to these in the United States due to American missionary activities.
These principles are enshrined in the Cambridge Platform (1648) and the Savoy Declaration (1658), Congregationalist confessions of faith. The Congregationalist Churches are a continuity of the theological tradition upheld by the Puritans. Their genesis was through the work of Congregationalist divines Robert Browne, Henry Barrowe, and John Greenwood.