Three thousand years ago the Italian peninsula presented a veritable medley of races. In the south and along the eastern coast were found the cities and colonies founded by the two streams of immigration from the neighboring peninsula across the Adriatic--the Pelasgian and the Greek. In the center of Italy were to be found the various branches of the Oscan, Umbrian, and Sabellian races. Farther to the north was the country of the Latins. Etruscans and Gauls dwelt between Latium and the Alps. It was only at a much later time that Cisalpine Gaul began to be considered a part of Italy. In its earliest days Rome, while possessing many features in common with the other Italian cities, presented at the same time many differences. "The unfavorable character of the site renders it hard to understand how the city could so early attain its prominent position in Latium. The soil is unfavorable to the growth of fig or vine, and in addition to the want of good water-springs, swamps are caused by the frequent inundations of the Tiber. Moreover, it was confined in all land directions by powerful cities. But all these disadvantages were more than compensated by the unfettered command it had of both banks of the Tiber down to the mouth of the river. The fact that the clan of the Romilii was settled on the right bank from time immemorial, and that there lay the grove of the creative goddess Dea Dia, and the primitive seat of the Arval festival and Arval brotherhood, proves that the original territory of Rome comprehended Janiculum and Ostia, which afterwards fell into the hands of the Etruscans. Not only did this position on both banks of the Tiber place in Rome's hands all the traffic of Latium, but, as the Tiber was the natural barrier against northern invaders, Rome became the maritime frontier fortress of Latium. Again, the situation acted in two ways: Firstly, it brought Rome into commercial relations with the outer world, cemented her alliance with Cære, and taught her the importance of building bridges. Secondly, it caused the Roman canton to become united in the city itself far earlier than was the case with other Latin communities. And thus, though Latium was a strictly agricultural country, Rome was a center of commerce; and this commercial position stamped its peculiar mark on the Roman character, distinguishing them from the rest of the Latins and Italians, as the citizen is distinguished from the rustic. Not, indeed, that the Roman neglected his farm, or ceased to regard it as his home; but the unwholesome air of the Campagna tended to make him withdraw to the more healthful city hills; and from early times by the side of the Roman farmer arose a non-agricultural population, composed partly of foreigners and partly of natives, which tended to develop urban life."