When they reached the Emperor they asked, or rather demanded, that he should assent to the letter of Pope Leo, who was the first to claim this submission from the East. They insisted, furthermore, that this heterodox monarch should accept the definitions of the famous Council of Chalcedon, A.D. 451, which relate to the nature and personality of Christ. The schism between East and West had now lasted for thirty-one years, and a certain Acacius, Bishop of Constantinople, who had been a most persistent opponent of the demands of Leo the Great, was still a thorn in the Roman pontiff’s side. But Anastasius received the ambassadors with just as proud a spirit as they had shown to him. He would neither yield to Leo nor to Chalcedon, nor would he anathematize Acacius. Ennodius and his companions returned to Rome without accomplishing their mission, and the Emperor sent letters after them by Theopompus and Severianus, principal men of his court. When these reached Rome they were badly received by Hormisdas, and found that nothing would answer except the excommunication of Acacius. With this _ultimatum_ they got back, somewhat crestfallen; and poor Acacius (who was not half so bad as his papal foe) was once more threatened with banishment to eternal fires. Anastasius, however, was not at all inclined to hand over his bishop to the mercies of Hormisdas. He stoutly refused and continued to refuse throughout the ensuing correspondence. About two hundred monks and archimandrites (heads of monasteries) sent from Syria a letter to the Pope which was directed against the patriarch of Antioch, Severus by name, and which gave in their own allegiance to the Western Church. Nevertheless, the Emperor still maintained the cause of Acacius, although he must have seen that the Pope was as determined as ever to carry his point and that there was now a great deal which was working in favor of the papal plans. When the Syrians addressed their letter to the “Most holy and blessed Hormisdas, Patriarch of the whole earth, holding the see of Peter the prince of the apostles,” it spoke volumes for what the Pope had been able to effect by his agents and representations in the East. But the Emperor would not yield the point and act upon the conciliatory policy of the heretical Theodoric of Italy, which was that they might settle religious matters in their own fashion, provided they honored absolutely his temporal sway.