The difference is doubtless due in part to merely surface causes. East Anglia had long lost her autonomy, and, while sometimes ruled by Mercia, was sometimes broken up under several ealdormen. For her and for Northumbria the conquest was but a change from a West Saxon to a Danish master. The house of Ecgberht had broken down the national and tribal organisation, and was incapable of substituting a central organisation in its place. With no roads and no communications such a centralising scheme is really impracticable. The disintegrated English kingdoms made little show of fighting for their Saxon over-lord. They could accept a Dane for master almost as readily as they could accept a Saxon. But besides these surface causes, there was a deeper and more fundamental cause underlying the difference. The Scandinavians were nearer to the pure English in blood and speech than they were to the Saxons. In their old home the two races had lived close together,–in Sleswick, Jutland, and Scania,–while the Saxons had dwelt further south, near the Frankish border, by the lowlands of the Elbe. To the English of Northumbria, the Saxons of Wessex were almost foreigners. Even at the present day, when the existence of a recognised literary dialect has done so much to obliterate provincial varieties of speech in England, a Dorsetshire peasant, speaking in a slightly altered form the classical West Saxon of Ælfred, has great difficulty in understanding a Yorkshire peasant, speaking in a slightly altered form the classical Northumbrian of Bæda. But in the ninth century the differences between the two dialects were probably far greater. On the other hand, though Danish and Anglian have widely separated at the present day, and were widely distinct even in the days of Cnut, it is probable that at this earlier period they were still, to some extent, mutually comprehensible. Thus, the heathen Scandinavian may have seemed to the Northumbrian and the East Anglian almost like a fellow-countryman, while the West Saxon seemed in part like an enemy and an intruder. At any rate, the similarity of blood and language enabled the two races rapidly to coalesce; and when the cloud rises again from the North half a century later, the distinction of Dane and Englishman has almost ceased in the conquered provinces. It is worthy of note in this connection that the part of Mercia afterwards given over by Ælfred to Guthrum, was the Anglian half, while the part retained by Wessex was mostly the Saxon half–the land conquered by Penda from the West Saxons two hundred years before.