By: Mir M.Hosseini
The city of Sepahan which hosted the greatest Iranian garrison was captured by the Arab Muslim army. The same army had defeated king Yazdgerd 3's army in Nahavand. While Sepahan was resisting to receive help, the king himself was fleeing towards west. The city was divided into two districts which were called Jay and Jewish. Because the Arabic language lacks 4 letters including 'P', Sepahan was renamed as Isfahan.