§ 42.4. =The Later Emperors.=--After Julian’s death, Jovian, and then on his death in A.D. 364, Valentinian I. († 375), were chosen emperors by the army. The latter resigned to his brother Valens the empire of the East (A.D. 364-378). His son and successor Gratian (A.D. 375-383) at the wish of the army adopted his eldest half-brother of four years old, Valentinian II., as colleague in the empire of the West, and upon the death of Valens resigned the government of the West to the Spaniard Theodosius I., or the Great (A.D. 379-395), who, after the assassination of Valentinian II. in A.D. 392, became sole ruler. After his death his sons again divided the empire among them: Honorius († 423) took the West, Arcadius († 408) the East, and now the partitioned empire continued in this condition until the incursions of the barbarians had broken up the whole West Roman division (A.D. 476). Belisarius and Narses, the victorious generals of Justinian I., were the first to succeed, between A.D. 533-553, in conquering again North Africa and all Italy along with its islands. But in Italy the Byzantine empire from A.D. 569 was reduced in size from time to time by the Longobards, and in Africa from A.D. 665 by the Saracens, while even earlier, about A.D. 633, the Saracens had secured to themselves Syria, Palestine, and Egypt.--Julian’s immediate successors tolerated paganism for a time. It was, however, a very temporary respite. No sooner had =Theodosius I.= quieted in some measure political disorders, than he proceeded in A.D. 382 to accomplish the utter overthrow of paganism. The populace and the monks combined in destroying the temples. The rhetorician Libanius († 395) then addressed his celebrated discourse Περὶ τῶν ἱερῶν to the emperor; but the remaining temples were closed and the people were prohibited from visiting them. In Alexandria, under the powerful bishop Theophilus, there were bloody conflicts, in consequence of which the Christians destroyed the beautiful Serapeion in A.D. 391. In vain did the pagans look for the falling down of the heavens and the destruction of the earth; even the Nile would not once by causing blight and barrenness take vengeance on the impious. In the West, =Gratian= was the first of the emperors who declined the rank of _pontifex maximus_; he also deprived the heathen priests of their privileges, removed the foundations of the temple of Fiscus, and commanded that the altar of Victory should be taken away from the hall of the Senate in Rome. In vain did Symmachus, _præfectus urbi_, entreat for its restoration, if not “_numinis_” yet “_nominis causa_.” =Valentinian II.=, urged on by Ambrose, sent back four times unheard the deputation that came about this matter. So soon as =Theodosius I.= became sole ruler the edicts were made more severe. On his entrance into Rome in A.D. 394 he