For Anglo-Saxon culture and society, see Anglo-Saxons. In the history of Great Britain, Anglo-Saxon England refers to the historical land roughly corresponding to present-day England, as it existed from the 5th to the 11th century, but not including Devon and Cornwall until the 9th century.f the Anglo-Saxon Chronicle is to be believed, the various Anglo-Saxon kingdoms which eventually merged to become England were founded when small fleets of three or five ships of invaders arrived at various points around the coast of England to fight the Sub-Roman British, and conquered their lands.