THE MEROVINGIAN AGE 5. RAVENNA: s. VITALE, COMPLETED 547. mosaics covering them. These glowing surfaces with austere, gaunt figures in sombre tints, seem just as immaterial, as magical and weightless as the surging and drooping curves of the octagon. The Franks in Gaul, the Angles and Saxons in Britain, the Visi- goths in Spain could not possibly appreciate the complexity and sophistication of such churches. Theirs was still the outlook of native tribes, although Clovis had accepted in 496 what he understood as Christianity. With the same merciless cruelty in which the Anglo- Saxon warrior revelled in England, all but exterminating what had remained of civilisation on the island, the princes of the Merovin- gians sought to exterminate whole families of rivals. The pages of Gregory of Tours, who wrote in the second half of the 6th century, are full of assassination, rape and perjury. Yet this is how our own civilisation began, and how all civilisations begin—in the darkness of tribal barbarism. The Church was the only tie between these shifting kingdoms and the spiritual achievements of the South. Thus Anglo- Saxon brutality was tamed by Irish monasticism (inspired in some obscure way by the Coptic Church of Egypt) in die North and by missionaries from Rome in the South, until, early in the 8th century, the Venerable Bede and the circle around him attained a height of education unparalleled anywhere else in Europe. What they built