305 CE
May 1
May 1
Diocletian announces his resignation. Maximian follows suit. Constantius and Galerius are promoted to Augusti, while Severus II and Maximinus are appointed Caesars.
307 CE
April
April
Severus II is sent against Maxentius, but his troops defect and he is imprisoned.
307 CE
September
September
Severus II is executed, likely on the orders of Maxentius.