513

By place

Europe

• Revolt of Vitalian: Vitalian, Byzantine general, revolts against Emperor Anastasius I and conquers a large part of the Diocese of Thrace. He gains the support of the local people and assembles an army of 50,000–60,000 men.
• Anastasius I reduces taxes in the provinces of Bithynia and Asia, to prevent them from joining the rebellion. Vitalian marches to Constantinople and encamps at the suburb of Hebdomon.
• Anastasius I sends an embassy under the former consul Patricius to start negotiations. Vitalian declares his aims: restoration of Chalcedonian Orthodoxy and the settling of the Thracian foederati.
• Vitalian accepts an agreement and returns with his army to Lower Moesia. After a few inconclusive skirmishes, Anastasius I sends a Byzantine army under his nephew Hypatius.
• Vitalian defeats the Byzantines at Acris, on the Black Sea coast. He attacks their fortified Laager in darkness, and in a crushing defeat kills a large part of the imperial army.

  Persia

• King Kavadh I adopts the doctrine of the Mazdakites, and breaks the influence of the magnates'.
• The Jewish community revolts at Ctesiphon against Mazdakism, and establishes an independent Jewish kingdom that lasts for seven years.

  By topic

Religion

• Vigor becomes bishop of Bayeux. He opposes paganism and founds a monastery later known as Saint-Vigor-le-Grand.