the very earliest records of the Roman State. No doubt, the instability of society in ancient Italy, composed as it was in great measure of robber tribes, gave men considerable inducement to locate themselves in the territory of any community strong enough to protect itself and them from external attack, even though protection should be purchased at the cost of heavy taxation, political disfranchisement, and much social humiliation. It is probable, however, that this explanation is imperfect, and that it could only be completed by taking into account those active commercial relations which, though they are little reflected in the military traditions of the republic, Rome appears certainly to have had with Carthage and with the interior of Italy in pre-historic times. Whatever were the circumstances to which it was attributable, the foreign element in the commonwealth determined the whole course of its history, which, at all its stages, is little more than a narrative of conflicts between a stubborn nationality and an alien population. Nothing like this has been seen in modern times; on the one hand, because modern European communities have seldom or never received any accession of foreign immigrants which was large enough to make itself felt by the bulk of the native citizens, and on the other, because modern states, being held together by allegiance to a king or political superior, absorb considerable bodies of immigrant
