of the Levant, 634 AD, Syria's population mainly spoke Aramaic; Greek was the official language of administration. Arabization and Islamization of Syria began in the 7th century, and it took several centuries for Islam, the Arab identity, and language to spread; the Arabs of the caliphate did not attempt to spread their language or religion in the early periods of the conquest, and formed an isolated aristocracy. The Arabs of the caliphate accommodated many new tribes in isolated areas to avoid conflict with the locals; caliph Uthman ordered his governor, Muawiyah I, to settle the new tribes away from the original population. Syrians who belonged to Monophysitic denominations welcomed the peninsular Arabs as liberators. The Abbasids in the eighth and ninth century sought to integrate the peoples under their authority, and the Arabization of the administration was one of the tools. Arabization gained momentum with the increasing numbers of Muslim converts; the ascendancy of Arabic as the formal language of the state prompted the cultural and linguistic assimilation of Syrian converts. Those who remained Christian also became Arabized; it was probably during the Abbasid period in the ninth century that Christians adopted Arabic as their first language; the first translation of the gospels into Arabic took place in this century. Many historians, such as Claude Cahen and Bernard Hamilton, proposed that the Arabization of Christians was completed before the First Crusade. By the thirteenth century, Arabic language achieved dominance in the region and its speakers became Arabs. Those who were able to avoid losing the Aramaic language are divided between two groups: The Eastern Aramaic Syriac-speaking group, followers of the West Syriac Rite of the Syriac Orthodox Church and the Syrian Catholic Church; they kept the pre-Islamic Syrian (Syriac) identity throughout the ages, asserting their culture in face of the Arabic language dominance. Linguists, such as Carl Brockelmann and François Lenormant, suggested that the rise of the Garshuni writing (using Syriac alphabet to write Arabic) was an attempt by the Syriac Orthodox to assert their identity. Syriac is still the liturgical language for most of the different Syriac churches in Syria. The Syriac Orthodox Church was known as the Syrian Orthodox Church until 2000, when the holy synod decided to rename it to avoid any nationalistic connotations; the Catholic Church still have "Syrian" in its official name. The Western Neo-Aramaic-speaking group, that is, the inhabitants of Bakh'a, Jubb'adin and Ma'loula.