The slight pause in the long course of Danish warfare which occurred during the vigorous administration of Dunstan, affords the best opportunity for considering the degree of civilisation reached by the English in the last age before the Norman Conquest. Our materials for such an estimate are partly to be found in existing buildings, manuscripts, pictures, ornaments, and other archæological remains, and partly in the documentary evidence of the chronicles and charters, and more especially of the great survey undertaken by the Conqueror's commissioners, and known as Domesday Book. From these sources we are enabled to gain a fairly complete view of the Anglo-Saxon culture in the period immediately preceding the immense influx of Romance civilisation after the Conquest; and though some such Romance influence was already exerted by the Normanising tendencies of Eadward the Confessor, we may yet conveniently consider the whole subject here under the age of Eadgar and Æthelred. It is difficult, indeed, to trace any very great improvement in the arts of life between the days of Dunstan and the days of Harold. In spite of constant wars and ravages from the northern pirates, there can be little doubt that England had been slowly advancing in material civilisation ever since the introduction of Christianity. The heathen intermixture in the North and the Midlands had retarded the advance but had not completely checked it; while in Wessex and the South the intercourse with the continent and the consequent growth in culture had been steadily increasing. Æthelwulf of Wessex married a daughter of Karl the Bald; Ælfred gave his daughter to a count of Flanders; and Eadward's princesses were married respectively to the emperor, to the king of France, and to the king of Provence. Such alliances show a considerable degree of intercourse between Wessex and the Roman world; and the relics of material civilisation fully bear out the inference. The Institutes of the city of London mention traders from Brabant, Liège, Rouen, Ponthieu, France (in the restricted sense), and the Empire; but these came "in their own vessels." England, which now has in her hands the carrying trade of the world, was still dependent for her own supply on foreign bottoms. We know also that officers were appointed to collect tolls from foreign merchants at Canterbury, Dover, Arundel, and many other towns; and London and Bristol certainly traded on their own account with the Continent.