Dumnonia until they submitted to the See of Canterbury in the mid-9th century. Parish organisation was a later development of fully Normanised times. Around AD 55, the Romans established a legionary fortress at "Isca Dumnoniorum", modern Exeter, but west of Exeter the area remained largely un-Romanized. Most of Dumnonia is notable for its lack of a villa system, though there were substantial numbers south of Bath and around Ilchester, and for its many settlements that have survived from the Romano-British period. As in other Brythonic areas, Iron Age hillforts, such as Hembury and Cadbury Castle, were refortified in post-Roman times for
Southern England have a distinct identity from the rest of England, however without universal agreement on what cultural, political, and economic characteristics of the South are. For statistical purposes, Southern England is divided into four regions: South West England, South East England, London, and the East of England. Combined, these have a total area of , and a population of 28 million. People often apply the terms "southern" and "south" loosely, without deeper consideration of the geographical identities of Southern England. This can cause confusion over the depth of affiliation between its areas. As in much of the rest of England, people