The country of Pannonia and Dalmatia, which occupied the space between the Danube and the Hadriatic, was one of the last and most difficult conquests of the Romans. In the defence of national freedom, two hundred thousand of these barbarians had once appeared in the field, alarmed the declining age of Augustus, and exercised the vigilant prudence of Tiberius at the head of the collected force of the empire. The Pannonians yielded at length to the arms and institutions of Rome. Their recent subjection, however, the neighborhood, and even the mixture, of the unconquered tribes, and perhaps the climate, adapted, as it has been observed, to the production of great bodies and slow minds, all contributed to preserve some remains of their original ferocity, and under the tame and uniform countenance of Roman provincials, the hardy features of the natives were still to be discerned. Their warlike youth afforded an inexhaustible supply of recruits to the legions stationed on the banks of the Danube, and which, from a perpetual warfare against the Germans and Sarmazans, were deservedly esteemed the best troops in the service. The Pannonian army was at this time commanded by Septimius Severus, a native of Africa, who, in the gradual ascent of private honors, had concealed his daring ambition, which was never diverted from its steady course by the allurements of pleasure, the apprehension of danger, or the feelings of humanity. On the first news of the murder of Pertinax, he assembled his troops, painted in the most lively colors the crime, the insolence, and the weakness of the Prætorian guards, and animated the legions to arms and to revenge. He concluded (and the peroration was thought extremely eloquent) with promising every soldier about four hundred pounds; an honorable donative, double in value to the infamous bribe with which Julian had purchased the empire. The acclamations of the army immediately saluted Severus with the names of Augustus, Pertinax, and Emperor; and he thus attained the lofty station to which he was invited, by conscious merit and a long train of dreams and omens, the fruitful offsprings either of his superstition or policy.