From New England, as has been seen, Puritan settlers established Presbyterian churches (or churches which immediately became Presbyterian) in Long Island, on New Jersey, and in South Carolina; but the Puritans who remained in New England usually established Congregational churches.
Unitarian tendencies away from the Calvinism of the old Congregational churches were plainly evident about 1750, and it is said by Andrew P. Peabody (1811-1893) that by 1780 nearly all the Congregational pulpits around Boston were filled by Unitarians.
In 1886 he was chairman of the Congregational Union, which he represented in 1889 at the triannual national council of the American Congregational churches.
Still, the development of congregational churches proper was gradual, the result of constant study of " the Word of God " in the light of experience.
There are also congregational churches in Austria, Bulgaria, Holland, Norway, Portugal, Spain, Sweden and in Japan (93).