The Anglo-Saxons of England were of Germanic descent, but they were not of the Norse Scandinavian Kings who ruled the Danelaw and Kingdom of Jorvik - and in the century AD, the Vikings finally overran Great Britain and established Scandinavian colonies, while wiping out the native Anglo-Saxon and Celtic cultures. Following this POD, the Viking civilization would grow considerably to include Ireland (Hibernia, or Hebernland as the Norse would call it), large tracts of North America and would radically alter the course of medieval, and later modern, history.