425: Meaning (information, definition, explanation, facts)

Events

• October 23 -Valentinian III becomes western Roman emperor.
• Aetius leads an army into Italy to support the self-proclaimed emperor Joannes.
• Last known usage of Demotic.
• The Sanhedrin is disbanded by the Roman Empire.
• Buddhism begins to spread to Southeast Asia.

Births

• Zu Chongzhi, Chinese mathematician

Deaths

• October 10 - Atticus, Patriarch of Constantinople
• Joannes, usurper in the western Roman Empire.