16.5. War with Persia and the 100-Year Peace
About the time of the marriage the peace with Persia was broken. Yezdegerd had always shewn himself friendly to the Christians; but at the end of his reign the fanatical act of a bishop drove him to severe measures. Some Christians fled to Roman territory, and when their surrender was refused, the position became so critical that permission was given to the inhabitants of the exposed provinces to fortify their own lands (5 May 420). After Yezdegerd's violent death (late in 420) a more extended persecution was begun by Warahran V; and the Court of Constantinople began the war by sending the Alan Ardaburius through Roman Armenia into Arzanene, where he defeated the Persian Narsai (Aug. or Sept 421) , who retreated to Nisibis.
Ardaburius with numerous prisoners advanced to Amida to prevent an invasion of Mesopotamia; and here, as the prisoners were starving, Bishop Acacius melted the church plate, ransomed them with the price, gave them provisions, and sent them home. Ardaburius then besieged Nisibis, and Warahnm prepared to march to its relief, while he sent Al Mundhir, sheikh of AI Hira, to invade Syria, Many of the Arabs were however drowned in the Euphrates, and the rest defeated by the general Vitianus. On the king's approach Ardaburius burnt his engines and retreated, and the Persians, crossing the frontier, vainly attacked Rhesaina for over a month; but, though the Romans gained some successes, no decisive victory was obtained, and Teodosius thought it best to propose terms.
Warahran was also inclined for peace; but, wishing to gain a success first, he ordered an attack upon a Roman force, while he kept the ambassador with him. The Romans were surprised; but during the battle another division under Procopius, the son-in-law of Anthomius, unexpectedly appeared, and the Persians, taken on both sides, were defeated. Warahran then took up the negotiations in earnest; and, on his undertaking to stop the persecution and each party binding itself not to receive the Arab subjects of the other, peace was made for 100 years (482). This victory was celebrated by Eudocia in an epic poem.
It was probably a result of the transference of troops from Europe to meet the Persians that the Huns this year invaded Thrace, though in consequence of the prudent measures of Anthemius the Danubian frontier was rarely violated before 441. The provinces had however not recovered from the calamities of Arcadius' time, and constant remissions of taxation were necessary.
The relations with the West were again disturbed through the refusal of Theodosius to recognise the elevation of Constantius (421); and when , after the death of Honorius (Aug. 423) the obscure John was proclaimed emperor in prejudice of the claims of the young Valentinian the son of Placidia, there was an open breach. When John's envoys arrived to ask for recognition, Theodosius threw them into prison. Placidia now received anew the title of Augusta (424), which Theodosius had before ignored, Valentinian was declared Caesar at Thessalonica, mother and son were sent to Italy with a large army under Ardaburius, his son Aspar, and Candidianus; and, John having been overthrown, Valentinian was invested with the empire (Oct. 425). The concord between the two divisions of the Empire was confirmed by the betrothal of Valentinian to Theodosius' daughter Eudoxia,and the victory celebrated by the building of the Golden Gate, through which the emperors made their formal entries into Constantinople. In 431, when Placidia needed assistance against the Vandals, an army under Aspar was sent to Africa; but Aspar returned three years later without success, probably after an understanding which made him ever after a friend of the Vandals.
In 427 some Ostrogoths who had seceded from the Huns were settled in Thrace, and other tribes were received in 433; while a raid was made by the Huns, and a more serious attack only prevented by abject submission to their demands (434). At sea a pirate fleet entered the Propontis, but in 488 the pirate Contradis was captured. At home stones were thrown at Theodosius in a riot after a famine in 431, and there were bitter complaints of the extortion of the eunuchs.
Two matters of internal administration deserve special mention — the codification of the law (438), and the foundation of a university at Constantinople as a counterpoise to the schools of Athens (27 Feb. 425). In this university there were 28 professors of Greek and Latin grammar and rhetoric, and two of law, but only one of philosophy, and all other public teaching in the city was forbidden.
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