File:Campitelli sign, history, Rome (45506704015).jpg

Campitelli is the historical district with the lowest population density, because about 75% of its surface is occupied by an extremely large archaeologic area, which includes two hills, namely the Capitolium [1] and the Palatine [2], the Roman Forum [3], and the Colosseum [4]. Prior to 1921, Campitelli stretched more south than its present boundaries; but in that year one part of its original territory was separated, to become the nineteenth independent district, Celio. During the Iron Age, only hills and swampy valleys could be found there. The former were inhabited by autonomous tribes, who around the 9th century BC began to meet and trade cattle, salt, and other products. Here the two main pre-Roman cultures converged, the Latins, who came from the plains of the southern part of Latium region, and lived on the left bank of the Tiber (or southern bank, considering the suburban course of the river), and the Etruscans, whose southernmost settlement spread across the right bank, or northern bank (see the map below).Campitelli district's locator map