success
             can be attributed to the fact that the rulers were sensitive to the
             provinces that were limited. In other words, the government ran on the
             assumption that all believers were equal and were common bonds in the
             Islamic world. Many non-Arabs were appointed to government positions and
             others who expressed political and spiritual promise were also allowed
             positions in local governments. To appear not to favor any existing region
             or group, the Abbassids created Baghdad and made it the new Islamic
             capital. The Abbassid government was able maintain power for many years
             because they chose to be sensitive to racial and ethnic diversity.
             Many historians agree that Islamic expansion can be difficult to
             explain. However, there were many external reasons that helped expansion
             possible. For instance, Byzantium and P
             ...