There is no record of fortifications at the site prior to the Byzantine period; in 705 an Arab attack on the town was repelled, but its Christian population later abandoned the settlement and Sis became a fortified frontier post of the Abbasid's.
There is no record of fortifications at the site prior to the Byzantine period. An Arab attack on the town was repelled. This was in 705. Its Christian population later abandoned. The settlement became a fortified frontier post of the Abbasid's. Sis became a fortified frontier post of the Abbasid's.