v. 1. Apostolic Christianity, A.D. 1-100, 3rd ed. -- v. 2. Ante-Nicene Christianity, A.D. 100-325, 5th ed. -- v. 3. Nicene and post-Nicene Christianity from Constantine the Great to Gregory the Great, A.D. 311-600, 5th ed., rev. -- v. 4. Mediæval Christianity from Gregory I to Gregory VII, A.D. 590-1073 -- v. 5. The Middle Ages from Gregory VII, 1049, to Boniface VIII, 1294 ; v. 6. The Middle Ages from Boniface VIII, 1294, to the Protestant Reformation, 1517 / by David S. Schaff -- v. 7. Modern Christianity : the German Reformation, 2nd ed., rev. -- v. 8. Modern Christianity : the Swiss Reformation, 3rd ed., rev.