The objective of "How Did Christianity Begin?" is to present two contrasting perspectives on the history of early Christianity. The contrast is evidently sharp as one co-author comes from a conservative Christian background (Michael Bird), whilst the other co-author (James Crossley) approaches the matter from a secular standpoint. The volume works sequentially through Christian origins and addresses various topics including the historical Jesus, the resurrection of Jesus, the Apostle Paul, the Gospels, and the early church. Each author in turn examines these subjects and lays out his historical arguments concerning their origin and meaning.The volume also includes short responses from two other scholars (Maurice Casey and Scot McKnight) to the arguments of Bird and Crossley so as to give an even handed and broad evaluation of the arguments and debates that unfold.