Christianity has a long history in present-day Turkey, which is the birthplace of numerous Christian apostles and saints. Antioch (Antakya) is regarded by tradition as the spot where the Gospels were written, and where the followers of Jesus were called Christians for the first time. The percentage of Christians in Turkey fell from 17.5% (three million followers) in a population of 16 million to 2.5% percent in the early 20th century. mainly as a result of the Armenian genocide, the population exchange between Greece and Turkey, and the emigration of Christians that began in the late 19th century and gained pace in the first quarter of the 20th century. Today, there are more than 120,000-320,000 people of various Christian denominations, representing less than 0.2% of Turkey's population, including an estimated 80,000 Oriental Orthodox, 35,000 Roman Catholics, 18,000 Antiochian Greeks, 5,000 Greek Orthodox, smaller numbers of Protestants, and 512 Mormons. Currently, there are 236 churches open for worship in Turkey.