This is the fourth episode in a short series of non-narrative episodes.  In this episode we cover religion in the Seljuk Empire.  How reality differed from the picture of strident Sunnism presented by pro-Seljuk propaganda, and the relationship between the Seljuk and Abbasid dynasties, the treatment of the Shia, the conflict among the Sunni Madhhabs, Sufism, and the treatment of minority religions.