In The Azusa Street Revival: Its Roots and Its Message, Dr. Robert R. Owens follows the Pentecostal movement from the birth of the church on the Day of Pentecost through the days of the early church, the persecutions of the Dark Ages, the revivals of the Reformation and the Holiness movement, to the Azusa Street Revival. Dr. Owens contends the Azusa Street Revival was the greatest religious event of the twentieth century. He challenges several traditional historical assessments of events associated with Azusa Street and provides new information regarding some of the early influences and people who helped shape the revival.