Events

• The Spanish provinces revolt from the control of Maxentius, acknowledging Constantine as their Emperor
• Pope Marcellus I is banished from Rome, as is his successor Eusebius later that year

Births

• Didymus The Blind, an ecclesiastical writer of Alexandria (approximate)

Deaths

• Pope Marcellus I
• Alban (possible date -- also 304)
• Hormizd II of Persia