The earliest inhabitants of the Peninsula are known as Iberians; with whom about 500 B.C., a branch of the Celtic family became amalgamated. These Celtiberians remained in undisputed possession of the country, until they were drawn into the vortex that was stirred by the rivalry of Rome and Carthage. The latter had planted colonies along the south coast, and gradually extended her authority into the interior, dealing as was her wont in a spirit of suspicion and brutality with the natives. The Romans, hot on the trail of their traditional foe, at first suffered decisive reverses. Then it was that Scipio the Younger offered himself to the Senate and People of Rome as general of the war. His father and uncle had been slain in battle in Spain; he desired to avenge their deaths and to crush the enemies of Rome. Though only twenty-four years of age he had the genius of a military leader and of a statesman. While putting heart into the shattered ranks of the Roman veterans and leading them victoriously against the Carthaginians, he adopted towards the Spaniards a policy of confidence and conciliation which won them over to a loyal acceptance of the Roman rule. A similar policy was practised by Suetonius in later years, when Spain had become the battle ground of the rival factions with which Rome was torn. It was continued by Julius Cæsar when he fought out his fight with Pompey on Spanish soil, and later by Augustus when, having become ruler of the Roman world, he completed pacifically the conquest of Spain.
Henceforth Spain was the most favored, loyal and prosperous province of the Empire. At first the Roman veterans, retiring from military service, married Spanish women and settled down as farmers, introducing gradually the order and scientific method for which the Romans are so justly celebrated. The settled conditions, fertility of the soil, and the beauty of the country in time attracted the wealth and culture of the Capital. Spain became, like “The Province” in the South of France, a field for capitalistic enterprise as well as a resort for those who leaned toward a life of refined leisure. She throve in the arts and sciences and became enriched with some of the finest evidences of the Roman genius for engineering. Her wheatfields fed the proletariat of the Capital and her sons reinforced the ranks of statesmen and men of letters. She became, in the finest sense of the word, more Roman than Italy herself. This period of splendid prosperity lasted for four hundred years, until it was submerged, like the rest of Roman civilization, by the flood of Gothic invasion.