The crisis of the third century saw Rome not only embroiled in contests of succeeding short-lived Emperors, but assailed by an increasing variety of hostile peoples from outside its frontiers. Owing to the complex racial interplay of this period, the sources for its history have to be compiled from a wide variety of sources. The least adequate are those in Latin, the imperial lives of the Historia Augusta . These have to be supplemented by the Greek chronicles of Zosimus and John Malalas of Antioch, as well as the Armenian history of Moses of Chorene, the Arabic History of the Arabs of Al-Tabari , as well as inscriptions in Greek, Latin, Hebrew, Syrian and other languages. This volume collects these diverse sources for the first time in English translation, and will be a uniquely valuable resource for scholars working on a period of Roman history that is attracting increasing attention.