previously entered his experience. On his return journey he stopped at Kairawan and became a hearer at the lectures given there by Abu Amran. The lecturer was greatly struck by the diligence and attention of his pupil, and greatly surprised when he discovered that he was a product of one of the wild and barbarous tribes of the far west. But when Yahya asked that one of the alumni of Kairawan might be sent home with him to teach his fellow-tribesmen no one was found willing to venture amongst a people who were generally regarded as fierce and savage, until at last the task was undertaken by Abdullah ibn Jahsim. Helped by his companion Yahya commenced a religious revival amongst the Berbers of the West, and seems to have modelled his work on the example of the Prophet, by force of arms urging his reforms upon the neighbouring tribes and laying the foundation of a united kingdom, a work which was continued by his successor, Yusuf b. Tashfin, and so at length a powerful kingdom was established, which extended from the Mediterranean to the Senegal. Many such Berber states were established at various times, but, as a rule, they fell into decay after a couple of generations.
Yusuf b. Tashfin was the champion now invited by the Muslims of Spain, not without misgivings in many quarters, but the choice seemed to lie only between Christian or Berber, and the Berbers were at least of their own religion and of the same race as the majority of the Spanish Muslims. Yusuf came
