The Millennial Harbinger was a religious magazine established by the early Restoration Movement leader Alexander Campbell in 1830.
[2][3] Campbell viewed the magazine as an important vehicle for promoting the religious reforms that he believed would help usher in the millennium.
[2] Campbell began publishing the Harbinger on January 1, 1830,[1] and it soon became a leading forum for the Restoration Movement during the period prior to the Civil War.
He also wanted the new journal to have a more positive tone, promoting reform and preparing the world for the second coming of Christ.
[2] During the 1840s Campbell used the Harbinger to urge greater cooperation between congregations and to avoid polarization and fragmentation of the movement over the issue of slavery.