The Campbell wing of the American
Restoration Movement was launched when
Thomas Campbell published the
Declaration and Address of the Christian Association of Washington in 1809. The Presbyterian Synod had suspended his ministerial credentials. In
The Declaration and Address he set forth some of his convictions about the church of Jesus Christ, as he organized the
Christian Association of Washington, in
Washington County, Pennsylvania, not as a church but as an association of persons seeking to grow in faith. On May 4, 1811, the Christian Association constituted itself as a congregationally governed church. With the building it constructed at Brush Run,
Pennsylvania, it became known as
Brush Run Church. Thomas' son
Alexander immigrated to the US to join him in 1809, and before long assumed the leading role in the movement. The Campbells worked within the Redstone Baptist Association during the period 1815 through 1824. While both the Campbells and the Baptists shared practices of baptism by immersion and
congregational polity, it was soon clear that he and his associates were not traditional Baptists. Within the Redstone Association, some of the Baptist leaders considered the differences intolerable when Alexander Campbell began publishing a journal,
The Christian Baptist, which promoted reform. Campbell anticipated the conflict and moved his membership to a congregation of the
Mahoning Baptist Association in 1824. The Mahoning Association came under attack. In 1830, The Mahoning Baptist Association disbanded. The younger Campbell ceased publication of the
Christian Baptist. In January 1831, he began publication of the
Millennial Harbinger. ==Influence of the Enlightenment==