NESTORIUS : UNDERSTANDING INCARNATION PROF. M. M. NINAN Islamic Period | Asia in 600 CE, showing the Sassanid Empire before the Arab conquest. After the Sasanian Empire was conquered by Muslim Arabs in 644, the newly established Rashidun Caliphate designated the Church of the East as an official dhimmi minority group headed by the Patriarch of the East. As with all other Christian and Jewish groups given the same status, the Church was restricted within the Caliphate, but also given a degree of protection. Nestorians were not permitted to proselytise or attempt to convert Muslims, but their missionaries were otherwise given a free hand, and they increased missionary efforts farther afield. Missionaries established dioceses in India (the Saint Thomas Christians). They made some advances in Egypt, despite the strong Monophysite presence there, and they entered Central Asia, where they had significant success converting local Tartars. Nestorian missionaries were firmly established in China during the early part of the Tang dynasty (618–907); the Chinese source known as the Nestorian Stele describes a mission under a proselyte named Alopen as introducing Nestorian Christianity to China in 635. In the 7th century, the Church had grown to have two Nestorian archbishops, and over 20 bishops east of the Iranian border of the Oxus River. Expansion to India, Central Asia, and Chine From the 6th century it expanded greatly, establishing communities in India (the Saint Thomas Christians), among the Mongols in Central Asia, and In China, which became home to a thriving community under the Tang dynasty from the 7th to the 9th century. The Biggest Church “All countries to east and those immediately to the west of Euphrares.” By the end of the 5th century and the middle of the 6th, the area occupied by the Church of the East included "all the countries to the east and those immediately to the west of the Euphrates", including the Sasanian Empire, the Arabian Peninsula, Socotra, Mesopotamia, Media, Bactria, Hyrcania, and India; and possibly also to places called Calliana, Male, and Sielediva (Ceylon). Beneath the Patriarch in the hierarchy were nine metropolitans, and clergy were recorded among the Huns, in Persarmenia, Media, and the island of Dioscoris in the Indian Ocean. The Church of the East also flourished in the kingdom of the Lakhmids until the Islamic conquest, particularly after the ruler al-Nu'man III ibn al-Mundhir officially converted in c. 592. 71
NESTORIUS : UNDERSTANDING INCARNATION PROF. M. M. NINAN The extent of the Nestorian Churches during the period following the Schism The patriarch Timothy I (780–823), a contemporary of the caliph Harun al-Rashid, took a particularly keen interest in the missionary expansion of the Church of the East. He is known to have consecrated metropolitans for Damascus, for Armenia, for Dailam and Gilan in Azerbaijan, for 72