The ferment then subsided for a time, but the disciples of Theodore, repulsed in the West, pushed their way from Eastern Syria to Persia. Ibas, who succeeded Rabbula in 435, restored the School of Edessa, and it continued to be a nursery of Theodore's theology till suppressed by Emperor Zeno in 489 and found refuge at Nisibis. Among the Nestorians of Persia the writings of Theodore were regarded as the standard both of doctrine and of interpretation, and the Persian church returned the censures of the orthodox by pronouncing an anathema on all who opposed or rejected them (cf. Assem. iii.i.84; and for a full account of the spread of Theodore's opinions at Edessa and Nisibis see Kihn, "Theodor und Junilius", pp. 198–209, 333–336).