La “descrizione dei tempi” all’alba dell’espansione islamica

During the VII-VIII centuries Byzantine historiography is supposed to have remained silent, since no source dating to that period has come down to us. West Syriac historiography is believed to have been quite scanty as well because, according to Lawrence Conrad's theory, the only source that later Syriac chroniclers had for this period was Theophilos of Edessa, whose chronicle is commonly thought to be Theophanes' "oriental source" as well. A thourough study of the materials shared by Theophanes