Alexander Campbell (1788-1866) was a prominent American religious leader and a key figure in the Restoration Movement, which sought to restore the early Christian church's practices and beliefs. He co-founded the Disciples of Christ denomination and emphasized the importance of the Bible as the sole authority in matters of faith. Campbell advocated for unity among Christians and believed in the necessity of baptism for salvation. Born in Ireland, Campbell immigrated to the United States in 1809. He was a skilled writer and speaker, publishing numerous works that addressed theological issues and church practices. His efforts contributed to the growth of the Christian Church and the spread of his ideas across the nation.