In the course of about four centuries, both during and after the Peloponnesian war, the Spartan oligarchy was enriched more and more by the spoils of victorious wars, and by the importation of slaves as war prisoners from other Greek and from barbarous nations. Then the difference between the rich and poor was more striking, and the eternal process of oppressing the poor, seizing upon their property, or buying them out, was busily and cheerfully pursued. Then Laconia was held by comparatively few Spartan slaveholders--but there were no more heroes of Thermopylæ. Citizens and freemen were a scarcity during the Augustan period; but slaves, the property of a few wealthy owners, actually covered Lacedemonia and Sparta. Domestic slavery undermined and destroyed the Spartan nation in precisely the same manner as it did others before and since. The enslaved Helots and Greeks, and many of the descendants of the enslavers, became, in their turn, slaves of the Romans, then of the Slavic invaders, afterward of the Crusaders, till finally all of them, masters and slaves, groaned under the yoke of the Osmanlis. The traveller can now scarcely find the few mouldering ruins of the once proud and enslaving city. Spartan history covers nearly a thousand years: and for centuries the destructive disease was at work. Some of its symptoms, in the course of half a century, are already highly developed in the South. Piracy and kidnapping, which in Greece originated at a time when every man saw an enemy almost in his immediate neighbor, did not wholly cease when national relations became more normal and regular. When slavery began to permeate the domestic economy, piracy and the slave-traffic were of course more active. The Southern enslavers assert that their region is not yet supplied with the necessary number of chattels. They draw on piracy, kidnapping, and bloodshed in Africa. The almost incessant wars between the Greek neighboring tribes and nations encouraged slavery; and innocent citizens, going from one Greek state to another, were often enslaved through enmity and greed. However, this savage custom became softened and finally abandoned when the mutual relations became more civilized and regulated; whereas free-men from free states of the Union are arrested and imprisoned in the so-called civilized slave-holding states, and in some cases they can be legally sold as slaves. In Boeotia slaves were not numerous--being only occasionally made and used. Neither serfs, bond-men, nor chattels, were held in Elis, Locris, or by the Arcadians, Phocians, or Achæans, until the downfall of Greek dignity, liberty, and independence, under the Macedonian and Roman rule. The Phocians prohibited slavery by express legislation.