The original settlements of the Umbrians extended over the district bounded on one side by the Tiber, on the other by the Po. All the country to the south was in the 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 Sabellians, 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 the name to that island.[6] These native tribes were not left in undisturbed possession of their rich inheritance. There arrived in the north of Italy that enterprising race, famed alike for their warlike spirit and their skill in the arts of peace, the Pelasgians (or dark Asiatics,) and became the civilizers of Italy. Historical research has failed to discover what settlements this wonderful race inhabited immediately previous to their occupation of Etruria. According to Livy’s account[7] they must have arrived in Italy by sea, for he asserts that their first settlements were south of the Apennines, that thence they spread northwards, and that the Rhæti were a portion of them, and spoke their language in a barbarous and corrupt form. His testimony ought to have some weight, because, as a native of the neighbourhood, he probably knew the Rhætian language. Their immigration must have taken place more than one thousand years before Christ,[8] and yet they were far advanced in the arts of civilization and refinement, and the science of politics and social life. They enriched their newly-acquired country with commerce, and filled it with strongly-fortified and populous cities; their dominion rapidly spread over the whole of Italy from sea to sea, from the Alps to Vesuvius and Salerno, and even penetrated into the islands of Elba and Corsica.[9] Herodotus[10] asserts that they migrated from Lydia; and this tradition was adopted by the Romans and by themselves.[11] Dionysius[12] rejects this theory on the grounds that there is no similarity between the Lydian and Etruscan language, religion, or institutions, and that Xanthus, a native Lydian historian, makes no mention of this migration. Doubtless the language is unique, nor can a connexion be traced between it and any family; but their alphabet is Phœnician, their theology and polity oriental, their national dress and national symbol, the eagle, was Lydian, and a remarkable custom alluded to both by Herodotus[13] and Plautus[14] was Lydian likewise.