 Temples were still being dedicated to Ashur, Shamash, Ishtar, Sin, Hadad and Ninurta in Assur, Arbela, Edessa, Amid, Nohadra and Harran among other places, during the 3rd and 4th centuries AD, and traces would survive into the 10th century in remote parts of Assyria.Asorestan, and particularly Assyria proper, were the centers for the Church of the East (now split into the Assyrian Church of the East, the Ancient Church of the East and the Chaldean Catholic Church), which at one time extended far beyond the confines of the by then defunct Sasanian empire and was the most widespread Christian church in the world, reaching well into Central Asia, China, Mongolia Tibet and India.It sees as its founders the apostle Thomas (Mar Toma), and Saint Thaddeus (Mar Addai), and used the distinctly Syriac version of Eastern Aramaic for its scriptures and liturgy.