In 711 the victorious Arabs introduced Islam into Spain: in 1502 an edict of Ferdinand and Isabella forbade the exercise of the Muhammadan religion throughout the kingdom. During the centuries that elapsed between these two dates, Muslim Spain had written one of the brightest pages in the history of mediæval Europe. Her influence had passed through Provence into the other countries of Europe, bringing into birth a new poetry and a new culture, and it was from her that Christian scholars received what of Greek philosophy and science they had to stimulate their mental activity up to the time of the Renaissance. But these triumphs of the civilised life—art and poetry, science and philosophy—we must pass over here and fix our attention on the religious condition of Spain under the Muslim rule. When the Muhammadans first brought their religion into Spain they found Catholic Christianity firmly established after its conquest over Arianism. The sixth Council of Toledo had enacted that all kings were to swear that they would not suffer the exercise of any other religion but the Catholic, and would vigorously enforce the law against all dissentients, while a subsequent law forbade any one under pain of confiscation of his property and perpetual imprisonment, to call in question the Holy Catholic and Apostolic Church, the Evangelical Institutions, the definitions of the Fathers, the decrees of the Church, and the Holy Sacraments. The clergy had gained for their order a preponderating influence in the affairs of the state; [386] the bishops and chief ecclesiastics sat in the national councils, which met to settle the most important business of the realm, ratified the election of the king and claimed the right to depose him if he refused to abide by their decrees. The Christian clergy took advantage of their power to persecute the Jews, who formed a very large community in Spain; edicts of a brutally severe character were passed against such as refused to be baptised; [387] and they consequently hailed the invading Arabs as their deliverers from such cruel oppression, they garrisoned the captured cities on behalf of the conqueror and opened the gates of towns that were being besieged. [388] The Muhammadans received as warm a welcome from the slaves, whose condition under the Gothic rule was a very miserable one, and whose knowledge of Christianity was too superficial to have any weight when compared with the liberty and numerous advantages they gained, by throwing in their lot with the Muslims.