 The Abbasids, after 750, established their capital in what is now Iraq, eventually at Baghdad.A shift in orientation toward the east is discernible, which was encouraged by increased receptiveness to Persian cultural influence and the roots of the Abbasid revolution in Khorasan, now in Afghanistan A proverb complained about the Persianization of morals by Turks.Two major powers in West Asia rose, the Persian Safavids and Ottoman Turks.