Belgae Britain after participating in Vercingetorix's rebellion and either joined or established a British branch of his tribe. Based on the development of imagery on coins, by the time of the Roman conquest, some of the tribes of south-eastern Britain likely were ruled by a Belgic nobility and were culturally influenced by them. The later "civitas" (administrative division) of Roman Britain had towns including "Portus Adurni" (Portchester), and "Clausentum" (Southampton). The "civitas" capital was at "Venta Belgarum" (Winchester), which was built on top of an Iron Age "oppidum" (which was itself built on the site of two earlier abandoned hillforts), which
New England town were not part of this process in southeastern New Hampshire, such as Exeter. Once there were enough residents in a town to formally organize a town government, no further action was necessary to incorporate. This practice can lead to inconsistencies in the dates of incorporation for towns in this region. Dates given in reference sources sometimes reflect the date when the town was chartered, which may have been long before it was settled, and not the date when its town government became active. In other parts of New England, some "future towns" were laid out along these lines, but such