8. In his time, the northern hive, as it was called poured down its swarms of barbarians upon the Roman empire. Ever at war with the Romans, they issued forth whenever that army that was to repress their invasions was called away; and upon its return, they as suddenly withdrew into their cold, barren, and inaccessible retreats, which themselves alone could endure. 9. In this manner the Scyth'ians, Goths, Sarma'tians, Ala'ni, Car'sii, and Qua'di, came down in incredible numbers, while every defeat seemed but to increase their strength and perseverance. 10. After gaining many victories over these, and in the midst of his triumphs, Diocle'sian and Maxim'ian, his partners in the empire, surprised the world by resigning their dignities on the same day, and both retiring into private stations. 11. In this manner Diocle'sian lived some time, and at length died either by poison or madness, but by which of them is uncertain. His reign of twenty years was active and useful; and his authority, which was tinctured with severity, was adapted to the depraved state of morals at that time. [Sidenote: U.C. 1057. A.D. 304.] 12. Upon the resignation of the two emperors, the two Caesars, whom they had before chosen, were universally acknowledged as their successors, namely, Constan'tius Chlo'rus, so called from the paleness of his complexion, a man virtuous, valiant, and merciful; and Gele'rius, who was brave, but brutal, incontinent and cruel. 13. As there was such a disparity in their tempers, they readily agreed, upon coming into full power, to divide the empire. Constan'tius was appointed to govern the western parts, and died at York, in Britain, A.D. 396, appointing Con'stantine, his son, as his successor. Gale'rius was seized with a very extraordinary disorder, which baffled the skill of his physicians, and carried him off. [Sidenote: U.C. 1064. A.D. 311.]