45. _In Medieval Europe: Spain._--This dispersion of the Jews had begun in the Hellenistic period, but it was after the Barcochebas war that it assumed great dimensions in Europe. There were Jews in the Byzantine empire, in Rome, in France and Spain at very early periods, but it is with the Arab conquest of Spain that the Jews of Europe began to rival in culture and importance their brethren of the Persian gaonate. Before this date the Jews had been learning the rôle they afterwards filled, that of the chief promoters of international commerce. Already under Charlemagne this development is noticeable; in his generous treatment of the Jews this Christian emperor stood in marked contrast to his contemporary the caliph Harun al-Rashid, who persecuted Jews and Christians with equal vigour. But by the 10th century Judaism had received from Islam something more than persecution. It caught the contagion of poetry, philosophy and science.[64] The schismatic Qaraites initiated or rather necessitated a new Hebrew philology, which later on produced Qimhi, the gaon Saadiah founded a Jewish philosophy, the statesman Hasdai introduced a new Jewish culture--and all this under Mahommedan rule. It is in Spain that above all the new spirit manifested itself. The distinctive feature of the Spanish-Jewish culture was its comprehensiveness. Literature and affairs, science and statecraft, poetry and medicine, these various expressions of human nature and activity were so harmoniously balanced that they might be found in the possession of one and the same individual. The Jews of Spain attained to high places in the service of the state from the time of the Moorish conquest in 711. From Hasdai ibn Shaprut in the 10th century and Samuel the nagid in the 11th the line of Jewish scholar-statesmen continued till we reach Isaac Abrabanel in 1492, the date of the expulsion of the Jews from Spain. This last-named event synchronized with the discovery of America; Columbus being accompanied by at least one Jewish navigator. While the Spanish period of Jewish history was thus brilliant from the point of view of public service, it was equally notable on the literary side. Hebrew religious poetry was revived for synagogue hymnology, and, partly in imitation of Arabian models, a secular Hebrew poetry was developed in metre and rhyme. The new Hebrew _Piyut_ found its first important exponent in Kalir, who was not a Spaniard. But it is to Spain that we must look for the best of the medieval poets of the synagogue, greatest among them being Ibn Gabirol and Halevi. So, too, the greatest Jew of the middle ages, Maimonides, was a Spaniard. In him culminates the Jewish expression of the Spanish-Moorish culture; his writings had an influence on European scholasticism and contributed significant elements to the philosophy of Spinoza. But the reconquest of Andalusia by the Christians associated towards the end of the 15th century with