As is well known, Christian Italy during the early middle ages, despite the successive invasions of the barbarians, remained the centre [center sic] of civilization and the store-house of Occidental learning. It is in Italy, without doubt, that the Romanesque style of architecture had its origin, and in Italy that the study of the Roman law was vigorously resumed. It is to Italy also that Charlemagne turned when he sought for scholars to place at the head of his schools. Moreover, it was on Italian soil, in the fifteenth century, that the magnificent blossom meriting its name, the Renaissance, was destined to open and unfold its literary and artistic beauties. Italy owes its glorious part in the world's history both to its geographical position and its commercial importance. So likewise with the Jews of Italy, their commercial activities contributed to their intellectual prosperity. In the ninth century they possessed rabbinical authorities, and in the tenth century, centres [centers sic] of Talmudic study. At this period, the celebrated family of the Kalonymides went to Lorraine to establish itself there. For some time Mayence was the metropolis of Judaism in the Rhine countries; and by its community the first academies were established, the first Talmudic commentaries were composed, and decisions were made which were accepted by all the Jews of Christian Europe. Soon this intellectual activity extended to Worms, to Speyer, and a little later to the western part of Germany and the northern part of France.[7] A veritable renaissance took place, parallel with the movement of ideas which went on in the schools and convents of the eleventh and fourteenth centuries;[8] for Jewish culture is often bound up with the intellectual destinies of the neighboring peoples. For some time the schools of Lorraine stood at the head of the Talmudic movement, and it was to them that Rashi came a little later to derive instruction. One of the most celebrated offspring of the family of the Kalonymides is Meshullam ben Kalonymos, who lived at Mayence in the second half of the tenth century. He was a Talmudist held in high regard and the composer of liturgic poetry. He devoted himself to the regulation of the material and spiritual affairs of his brethren. Although he stood in correspondence with the Babylonian masters, he was in a position to pass judgment independently of them. Communication with the East was frequent. The communities of France and Germany sent disciples to the Babylonians and submitted difficulties to them. Tradition relates that the Gaon Natronai (about 865) even visited France. However that may be, the Jews of France at an early period were acquainted with Babylonian works, both the chronicles and the legal codes.