Their culture was heavily influenced by the Mongols and Islamic caliphates.

After a little more than a hundred years, the empire was divided into two caliphates.

The division of the Arabian Empire into rival caliphates did not check the spread of Islam.

While I have been far more worried about all those senior officers in the Pakistan Army who are caliphates.

Then, effeminacy spreading even to the warriors, strength to resist internal disorders as well as external assaults gradually faded, and both caliphates fell.