That modern Unitarianism is all to be traced back to Sozzini and the Rakow Confession need not be assumed.
This view has, however, made but little way in England and America, where the opinions of the great majority of spiritualists vary from orthodox Christianity to Unitarianism of an extreme kind.
But the Unitarianism of those times, even the Unitarianism of Channing, was very different from that of to-day.
He was an able controversialist, and in the interests of Arminianism attacked both New England Calvinism and Unitarianism; he published in 1837 The Calvinistic Controversy.
At Litchfield and in Boston he was a prominent opponent of the $rowing "heresy" of Unitarianism, though as early as 1836 he was accused of being a "moderate Calvinist" and was tried for heresy, but was acquitted.