| AD | Event |
| 305-323 | Period of Civil Wars and Confusion
Character and Situation of Constantius
— Of Galerius
The two Caesars, Severus and Maximin:
Ambition of Galerius disappointed by two Revolutions |
| 274 | Birth, Education, and Escape of Constantine |
| 306 | Death of Constantius, and Elevation of Constantine
He is acknowledged by Galerius, who gives him only
the Title of Caesar, and that of Augustus to Severus
The Brothers and Sisters of Constantine
Discontent of the Romans at the Apprehension of Taxes
Maxentius declared Emperor at Rome
—Maximian reassumes the Purple |
| 307 | Defeat and Death of Severus
Maximian gives his Daughter Fausta, and the Title of Augustus, to Constantine
Galerius invades Italy
—His Retreat
Elevation of Licinius to the Rank of Augustus
—Elevation of Maximin |
| 308 | Six Emperors
—Misfortunes of Maximian |
| 310 | His Death |
| 311 | Death of Galerius
—His Dominion shared between Maximin and Licinius |
| 306-312 | Administration of Constantine and Maxentius
Tyranny of Maxentius in Italy and Africa |
|
|