United Church of ChristThe United Church of Christ (UCC) is a Protestant American church body, formed in 1957 by the merger of two denominations, the Evangelical and Reformed Church and the Congregational Christian Churches.
The Congregational churches trace their origins back to the separatist "Pilgrims" who established Plymouth Colony in 1620, and to the Puritans of the Massachusetts Bay Colony, who landed in 1629 and 1630 and settled Boston, whose organizing principle is Congregationalism. The UCC therefore unites one of the earliest Protestant denominations in the United States with various other Reformed traditions that sprang up in the United States in the 1700s and 1800s.
The motto of the United Church of Christ comes from John 17:21: That they may all be one. The UCC places little emphasis on doctrine, emphasizing instead freedom of individual conscience, and as a whole is considered a liberal Christian denomination in the United States, although some individual UCC congregations can be very conservative.