In the study of these volumes a table is useful, such as I find it convenient to place here, showing the Ante-Nicene succession of Caesars.

A.D.   

1. Augustus 1   

2. Tiberius 14   

3. Caligula 37   

4. Claudius 41   

5. Nero 54   

6. Galba 68   

7. Otho 69   

8. Vitellius 69   

9. Vespasian 69   

10. Titus 79   

11. Domitian 81   

12. Nerva 96   

13. Trajan 98   

14. Hadrian 117   

15. Antoninus Pius 138   

16. Marcus Aurelius 161   

17. Commodus 180   

18. Pertinax 192   

19. Didius Julianus (Niger) 193   

20. Septimius Severus 193   

21. Caracalla (Geta) 211   

22. Macrinus 217   

23. Heliogabalus 218   

24. Alexander Severus 222   

25. Maximinus 235   

26. Gordian 235   

27. Pupienus (Balbinus) 235   

28. Gordian The Younger 238   

29. Philip 244   

30. Decuis 249   

31. Gallus (Volusianus) 251   

32. Valerian 254   

33. Galleinus 260   

34. Claudius II 268   

35. Aurelian 270   

36. Tacitus (Probus) 275   

37. Florian 276   

38. Carus (Carinus, Numerian) 282   

39. Diocletian 284   

40. Maximian (Galerius) 286   

41. Constantius Chlorus 292   

42. Maximin 306   

43. Constantine the Great (Licinius, etc.) 307  

Suetonius includes Julius, and therefore his Twelve Caesars end with Domitian, the last of the Flavian family. With Nerva the “five good emperors” (so called) begin, but the “good Aurelius” was a persecutor. St. John, surviving the cruelty of Domitian, lived and died under Trajan.

The “vision of Constantine” is dated, at Treves, A.D. 312.

The Labarum became the Roman standard thenceforth.

The Dominical ordinance dates from Milan, June 2, A.D. 321.

He founds the city of Constantinople A.D. 324, convokes the Council of Nicaea A.D. 325.