While Jewish exiles were instrumental in awakening the spirit which inspired the Renaissance, and the consequent intellectual regeneration of Europe, their literature produced no inconsiderable effect upon the fortunes of that other momentous revolution which changed its religious aspect, the Protestant Reformation. The right of unrestricted perusal and private interpretation of the Scriptures, which was the vital principle of that movement, had always been enjoyed by the Hebrews. Their commentaries on the Bible were surprisingly voluminous: whole libraries were composed of them. The writings of the rabbis which elucidated obscure passages of Holy Writ were composed in a spirit of judicious toleration, entirely foreign to the policy dictated by bigoted ecclesiasticism and Papal authority. To exercise private judgment in religious matters was to invite the discipline of the Inquisition. Not one priest in ten thousand understood a word of Hebrew. Its study was prohibited to Catholics as conducive to heresy. On the other hand, Luther, Calvin, Melanchthon, Zwinglius, Conrad, in short, all the great Reformers, were thoroughly proficient in that language. Rabbinical literature exerted a powerful influence on their minds, inspired their efforts, provoked their rivalry, confirmed their resolution. In this respect, as in numerous others, posterity owes much to the despised Israelites of the mediæval era. A vast interval of time divides the ages of Abd-al-Rahman I. and Luther; the cities of Cordova and Worms are separated by many hundred leagues; but the inherent ideas of personal liberty and private right recognized on the banks of the Guadalquivir ultimately prevailed in the centre of Germany, once the most unlettered of countries. Thus the inheritance of barbarism, rendered possible by Roman decadence, transmitted by Goth, Hun, and Vandal, and perpetuated for the material interests of the Church, was supplanted by the labors and the example of rabbinical industry and learning. The epoch of ignorance, during which men feared to be enlightened by a people whose transcendent knowledge was believed to be of infernal origin, was past; but their disabilities were never entirely removed, and Jew-baiting is, unfortunately, still a popular diversion in some of the countries of Europe.