Charles Matson Odahl long served as the Professor of Ancient and Medieval History and Latin Literature at Boise State University in Boise, Idaho (1975-2011) and now serves as Visiting Professor for Roman and Byzantine History at Oregon State University in Corvallis, Oregon. His main research interests are Cicero and the late Roman Republic, early Christianity, and Constantine and the early Byzantine Empire. He has travelled, lived, studied and taught throughout Europe and around the Mediterranean Basin, and examined all of the historical sites and monuments of the Ciceronian and Constantinian Eras. Previous publications include Early Christian Latin Literature (1993), Cicero and the Catilinarian Conspiracy (Routledge, 2010), and first and second editions of Constantine and the Christian Empire (Routledge, 2004 and 2010).

1. The Subject and Ancient Sources 2. The Imperial Crisis and Illyrian Emperors 3. The First Tetrarchy and the Caesar's Son 4. The Gallic Emperor and the Dying Persecutors 5. The Italian Campaign and Constantine's Conversion 6. Religious Concerns and Apostolic Rome 7. The Eastern Crusade and the Nicene Council 8. The Dynastic Tragedy and Helena's Pilgrimage 9. Imperial Concerns and Christian Constantinople 10. The Final Campaigns and the Emperor's Heirs 11. The Thirteenth Apostle and the Christian Empire 12. The Legacy and Modern Interpretations