Place name origins only have little relation to the Roman names (e.g. Chester - 'Deva', Winchester - 'Venta Belgarum' etc.). Many English places derive part of their name from the river upon which they were built, but in the 16th century many English rivers were renamed with back-formations from towns on their banks. Cambridge, perhaps uniquely, illustrates both effects: originally "Grontabricc", a bridge on the Granta, the name became "Cantebruge" and then "Cambrugge", from which the river was renamed Cam. The vast majority of place names in Wales are Welsh by origin, containing elements such as Llan-, Aber-, Pen- etc. Along the south
Hampshire The later part of the Roman period had most towns build defensive walls; a pottery industry based in the New Forest exported items widely across southern Britain. A fortification near Southampton was called Clausentum, part of the Saxon Shore forts, traditionally seen as defences against maritime raids by Germanic tribes. The Romans withdrew from Britain in 410 CE. Two major Roman roads, Ermin Way and Port Way cross the north of the country connecting Calleva Atrebatum with Corinium Dobunnorum, modern Cirencester, and Old Sarum respectively. Other roads connected Venta Belgarum with Old Sarum, Wickham and Clausentum. A road, presumed to