The Antiochian Greeks ("Rum") living in Hatay are the descendants of the Ottoman Levant's and southeast Anatolia's Greek population and are part of the Greek Orthodox Church of Antioch. They did not emigrate to Greece during the 1923 population exchange because at that time the Hatay province was under French control. The majority of the Antiochian Greeks moved to Syria and Lebanon at 1939, when Turkey took control of the Hatay region, however a small population remained at this area. After a process of Arabization and Turkification that took place in the 20th century, today almost their entirety speaks Arabic as a mother language. This has made them hard to distinguish from the Arab Christians and some argue that they have become largely homogenized. Their majority doesn't speak Greek at all, the younger generation speaks Turkish, and some have Turkish names now. Their population is about 18,000, and they are faithful to the Patriarchate of Antiochia, although ironically it is now in Damascus. They reside largely in Antakya and/or the Hatay province, but a few are also in Adana province.