An examination of the accepted view that the foundation of Anglo-Saxon England derives from mass immigration, stressing instead the evidence for population continuity as well as the continuity of administrative and land use characteristics. This book tackles the problems of transition from Roman Britain to England through all the relevant academic disciplines, with a greater emphasis given to landscape evidence than has been done before and offers an alternative view based on acculturation, by which Anglo-Saxon England was largely peopled by communities whose ethnic origins were Celtic but who adopted the culture and language of the warrior aristocracy who had evicted the British landowners.