Of the Khurramís or Khurram-díniyya, whose essential tenets appear to have been those of Mazdak (see pp. 168-172 supra), The Khurram­díniyya. we continue to hear for another century, and the more or less serious revolts in Persia headed by the pseudo-prophets Sinbádh the Magian (A.D. 754-5), Ustádhsís (A.D. 766-768), Yúsuf al-Barm and al-Muqanna' “the veiled Prophet of Khurásán” (A.D. 777-780), 'Alí Mazdak (A.D. 833), and Bábak (A.D. 816-838) were in most cases associated with the memory of Abú Muslim.

If it did nothing else, however, the revolution which placed the 'Abbásids on the throne entirely altered the status of the Persians, who at once rose from the position of a despised and slighted subject-race to the highest and most influential offices and commands. It was their swords which won the victory for the House of 'Abbás, whom al-Bírúní, not without good reason, calls “a Khurásání, an Eastern dynasty”;* and it may truly be said that Qádisiyya and Naháwand were avenged on the banks of the Záb. The fall of the Umayyads was the end of the purely Arabian period.

*