Editing Servius Tullius (section)

===Tribal and boundary expansions===
The Servian reforms increased the number of tribes and expanded the city, which was protected by a new rampart, moat and wall. The enclosed area was divided into four administrative ''regiones'' (regions, or quarters); the Suburana, Esquilana, Collina and Palatina. Servius himself is said to have taken a new residence, on the Esquiline.<ref>Livy, Ab urbe condita, [[s:From the Founding of the City/Book 1#44|1.44]]. The named regions, in this sequence (I–IV), are in Varro, ''Lingua Latina'', 5. 45.</ref> The situation beyond the walls is unclear,<ref>Similar tribal areas, perhaps known as ''pagi'', may have extended into the surrounding Roman territories (''ager Romanus''), and some of their inhabitants would have qualified for citizenship under the Servian class reforms. Discussion in Cornell, pp. 176–179.</ref> but thereafter, membership of a Roman voting-tribe would have depended on residence rather than kinship, ancestry and inheritance. This would have brought significant numbers of urban and rural ''[[plebs]]'' into active political life; and a significant number of these would have been allocated to centuries of the first class, and therefore likely to vote.<ref>Cornell, pp. 173.</ref> The city of Rome's division into "quarters" remained in use until 7&nbsp;BC, when [[Augustus]] divided the city into [[14 regions of Augustan Rome|14 new ''regiones'']]. In modern Rome, an ancient [[Servian Wall|portion of surviving wall]] is attributed to Servius, the remainder supposedly being rebuilt after the [[Battle of the Allia|sack of Rome]] in 390/387&nbsp;BC by the Gauls.{{Citation needed|date=November 2010}}