Hampshire tribes of northeastern Gaul - whether these two events are linked to the decline of hillforts is unknown. By the Roman conquest, the "oppidum" at Venta Belgarum, modern-day Winchester, was the "de facto" regional administrative centre; Winchester was, however, of secondary importance to the Roman-style town of Calleva Atrebatum, modern Silchester, built further north by a dominant Belgic polity known as the Atrebates in the 50s BCE. Julius Caesar invaded southeastern England briefly in 55 and again in 54 BCE, but he never reached Hampshire. Notable sites from this period include Hengistbury Head (now in Dorset), which was a major
New England town left over when a particular region was carved into towns, not large enough to be a town on their own. Some appear to have simply been granted outside the usual town structure, sometimes in areas where it was probably not contemplated that towns would ever develop. Over time, those located in more populated areas were, in general, annexed to neighboring towns, or incorporated as towns in their own right. No such areas exist today in Massachusetts, Connecticut or Rhode Island, but some remain in New Hampshire, Vermont and Maine. All three of the northern New England states contain some town-sized