A Christian council was held at Edessa as early as 197. In 201 the city was devastated by a great flood, and the Christian church was destroyed. In 232 the relics of the apostle Thomas were brought from Mylapore, India, on which occasion his Syriac Acts were written. Under Roman domination many martyrs suffered at Edessa: Sharbel and Barsamya, under Decius; Sts. Gûrja, Shâmôna, Habib, and others under Diocletian. In the meanwhile Christian priests from Edessa had evangelized Eastern Mesopotamia and Persia, and established the first Churches in the Sasanian Empire. Atillâtiâ, Bishop of Edessa, assisted at the First Council of Nicaea (325). The "Peregrinatio Silviae" (or Etheriae) gives an account of the many sanctuaries at Edessa about 388.