The original settlements of the Umbrians extended over the district bounded on one side by the Tiber, and on the other by the Po. All the country to the south was in possession of the Oscans, with the exception of Latium, which was inhabited by the Sikeli. But, in process of time, the Oscans, pressed upon by the Sabines, invaded the abodes of this peaceful and rural people, some of whom submitted, and amalgamated with their conquerors; the rest were driven across the narrow sea into Sicily, and gave their name to the island. These tribes were not left in undisturbed possession of their rich inheritance. More than 1000 B.C. there arrived in the northern part of Italy the Pelasgians (or dark Asiatics), an enterprising race, famed for their warlike spirit and their skill in the arts of peace, who became the civilizers of Italy. They were far advanced in the arts of civilization and refinement, and in the science of politics and social life. They enriched their newly acquired country with commerce, and filled it with strongly fortified and populous cities, and their dominion rapidly spread over the whole peninsula. Entering the territory of the Umbrians, they drove them into the mountainous districts, or compelled them to live among them as a subject people, while they possessed themselves of the rich and fertile plains. The headquarters of the invaders was Etruria, and that portion of them who settled there were known as Etrurians. Marching southward, they vanquished the Oscans and occupied the plains of Latium. They did not, however, remain long at peace in the districts which they had conquered. The old inhabitants returned from the neighboring highlands to which they had been driven, and subjugated the northern part of Latium, and established a federal anion between the towns of the north, of which Alba was the capital, while of the southern confederacy the chief city was Lavinium. At a later period, a Latin tribe, belonging to the Alban federation, established itself on the Mount Palatine, and founded Rome, while a Sabine community occupied the neighboring heights of the Quirinal. Mutual jealousy of race kept them, for some time, separate from each other; but at length the two communities became one people, called the Romans. These were, at an early period, subjected to Etruscan rule, and when the Etruscan dynasty passed away, its influence still remained, and permanently affected the Roman language.