The Iceni tribe inhabited the region prior to the Roman conquest of Britain in 43 AD, after which they built roads, forts, villas and towns. Boudica's rebellion in 60 AD, caused by the imposition of direct rule by the Romans, was followed by order and peace, which lasted until the Roman armies left Britain in 410 AD. The subsequent arrival of the Anglo-Saxons caused the loss of much Roman and British culture in Norfolk. It is known from external evidence from excavations and place-names that by c. 800 AD all Norfolk had been settled and the first towns had emerged. Norfolk was the northern half of the Kingdom of East Anglia and was ruled by the Anglo-Saxon Wuffing dynasty. Our knowledge of several Wuffings is scant, as few historical documents of the period have survived.