The historians' history of the world in twenty-five volumes, volume 08
CHAPTER VIII
THE ABBASIDS (750-1258 A.D.) 209
Founding of Baghdad, 209. Harun Ar-Rashid, 210. Al-Mamun and his successors, 211. Baghdad under the caliphs, 213. Gradual decline of Arabian dominion in the East, 215. The various religious sects, 220. The Seljuk Turks, 225. Arabs and Turks unite against the Christians, 227. Saladin and his successors against the crusaders, 228. The Mongols under Jenghiz Khan invade western Asia, 230.