Even the spiritual supremacy arrogated by the Pope was, in the dark ages, productive of far more good than evil. Its effect was to unite the nations of Western Europe in one great commonwealth. What the Olympian chariot course and the Pythian oracle were to all the Greek cities, from Trebizond to Marseilles, Rome and her Bishop were to all Christians of the Latin communion, from Calabria to the Hebrides. Thus grew up sentiments of enlarged benevolence. Races separated from each other by seas and mountains acknowledged a fraternal tie and a common code of public law. Even in war, the cruelty of the conqueror was not seldom mitigated by the recollection that he and his vanquished enemies were all members of one great federation. Into this federation our Saxon ancestors were now admitted. A regular communication was opened between our shores and that part of Europe in which the traces of ancient power and policy were yet discernible. Many noble monuments which have since been destroyed or defaced still retained their pristine magnificence; and travellers, to whom Livy and Sallust were unintelligible, might gain from the Roman aqueducts and temples some faint notion of Roman history. The dome of Agrippa, still glittering with bronze, the mausoleum of Adrian, not yet deprived of its columns and statues, the Flavian amphitheatre, not yet degraded into a quarry, told to the rude English pilgrims some part of the story of that great civilised world which had passed away. The islanders returned, with awe deeply impressed on their half opened minds, and told the wondering inhabitants of the hovels of London and York that, near the grave of Saint Peter, a mighty race, now extinct, had piled up buildings which would never be dissolved till the judgment day. Learning followed in the train of Christianity. The poetry and eloquence of the Augustan age was assiduously studied in Mercian and Northumbrian monasteries. The names of Bede and Alcuin were justly celebrated throughout Europe. Such was the state of our country when, in the ninth century, began the last great migration of the northern barbarians.