Abydenus wrote a history of Assyria (Ἀσσυριακά). The time at which he lived is uncertain, but we know that he made use of the works of Megasthenes and Berosus; and Cyrillus (ad v. Julian. pp. 8, 9) states, that he wrote in the Ionic dialect. Several fragments of his work are preserved by Eusebius, Cyrillus and Syncellus: it was particularly valuable for chronology. An important fragment, which clears up some difficulties in Assyrian history, has been discovered in the Armenian translation of the Chronicon of Eusebius.