- The Christians: Their Fiirst Two Hundred Years: The Veil Is Torn, A.D. 30 to A.D. 70; Pentecost to the Destruction of Jerusalem
- By This Sign The Christians Their First Two Thousand Years [Volume 3]
- The Christians: Their First Two Thousand Years; Darkness Descends A.D. 350 to 565 The Fall of the Western Roman Empire [Vol. 4]
- The Sword of Islam A.D. 565 to 740: The Muslim Onslaught all but Destroys Christendom
- The Christians: Their First Two Thousand Years; A Glorious Disaster A.D. 1100 to 1300 The Crusades: Blood, Valor, Iniquity, Reason, Faith [Vol. 7]