In the course of the ninth, tenth, and eleventh centuries the Danes
invaded England, but the sea prevented their coming all at once and
with overwhelming force. They got possession of the throne (S63) and
permanently established themselves in the northern half of the
country. The English, however, held their own so well that the Danes
were eventually compelled to unite with them. Even when the Normans
invaded England and conquered it (SS74, 107), they felt obliged to
make many concessions to both the English and the Danes. The result
was that every invasion of the island ended in a compromise, so that
no one race ever got complete predominance. In time all the elements
mingled and became one people.