Dio Cassius: Roman History, Volume VIII, Books 61-70

Dio Cassius (Cassius Dio), ca. 150– 235 CE, was born at Nicaea in Bithynia in Asia Minor. On the death of his father (Roman governor of Cilicia) he went in 180 to Rome, entered the Senate, and under the emperor Commodus was an advocate. He held high offices, becoming a close friend of several emperors. He was made governor of Pergamum and Smyrna; consul in 220; proconsul of Africa; governor of Dalmatia and then of Pannonia; and consul again in 229.