Although Jesus' life and the beginnings of Christianity were the same in the Agrippan Rome alternate as they were in the home timeline, the history of the Church diverged soon after. There was an Imperial Christian holy book called The Acts of the Apostles, which recorded different acts than in the home timeline book of the same name. One of the better known differences was the list of regions with which Paul the Apostle had interacted. John the Apostle was never mentioned (and his Gospel was unknown in the same alternate), suggesting that he either was never born or had never joined the church. These differences gave rise to the new field of Comparative Crosstime Bible Studies.