Vespasian Proclaimed Emperor (July 1, AD 69)

On July 1, AD 69, Tiberius Julius Alexander, prefect of Egypt, had the legions in Alexandria swear allegiance to Vespasian. The army of Judaea swore a few days later (Tacitus: July 3, Suetonius: July 11), and before mid-July the whole of Syria under the governor Mucianus. Vespasian counted July 1 as the first day of his reign. The legions from the Danube joined on their own and marched on Italy.