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Christianity in Turkey

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This was due to events which had a significant impact on the country's demographic structure, such as the First World War, the anti-Christian genocides of Greeks, Armenians, and Assyrians perpetrated by Turkish Muslims, and the population exchange between Greece and Turkey, and the emigration of persecuted Christians (such as Assyrians, Greeks, Armenians, etc.) to foreign countries (mostly in Europe and the Americas) that began in the late 19th century and gained pace in the first quarter of the 20th century, especially during World War I. Signed after the First World War, the Treaty of Lausanne explicitly guarantees the security and protection of both Greek and Armenian Orthodox Christian minorities. Their religious institutions are recognized officially by the Republic of Turkey.

In 2011 according to the Pew Research Center, there were more than 200,000-370,000 people of different Christian denominations in Turkey, representing roughly 0.3-0.4 percent of Turkey's population, including an estimated 80,000 population of Oriental Orthodox Christians, 47,000 Turkish Orthodox Christians, 35,000 Roman Catholic Christians, 18,000 Antiochian Greeks, 5,000 Greek Orthodox Christians, 8,000 Protestant Christians, 4,994 Jehovah's Witnesses, and 512 Mormons. There is also a small group of ethnic Orthodox-Christian Turks (mostly living in Istanbul and İzmir) who follow the Greek Orthodox, Turkish Orthodox, or Syriac Orthodox churches, and additionally Protestant Turks who still face difficulties regarding social acceptance, and also historic claims to churches or property in the country because they are former Muslim converts to Christianity from Turkish–Muslim background, rather than ethnic minorities. Ethnically Turkish Protestants number around 7,000–8,000. In 2009, there were 236 Christian churches open for worship in Turkey. The Eastern Orthodox Church has been headquartered in Constantinople since the 4th century AD.

In 2020 the Anadolu Agency, a state-run news agency of the Turkish government, claimed that the number of Christians in Turkey was 480,854, which corresponds to 0.5% of the population. In a 2022 report of the U.S. Department of State, Christians were seen as being 0.2% of the population. The estimated number of adherents mainly refers to Armenian Orthodox Christians, Armenian Catholics, Chaldean Catholics, Eastern Catholics, Greek Orthodox Christians, Oriental Orthodox Christians, Protestants, and Syriac Orthodox Christians, as well as smaller groups. It was noted that the number of Eastern Orthodox Christians had risen sharply, mainly due to refugees from Russia and Ukraine. In 2024, Freedom House rated the country 2 out of 4 for religious freedom; this was mainly due to disputes over land. The Mor Ephrem Syriac Orthodox church, opened in October 2023, was the first church built since the foundation of the Republic of Turkey.

Historical background

Early Christianity

The Christianization of ancient Assyrians and Armenians most likely began around the 1st century AD. The spread of Christianity beyond Jerusalem is discussed in the Book of Acts.

The Cappadocian Fathers produced some of the earliest hagiographies in the region. In addition to writings about feminine virtue by Gregory of Nyssa and Gregory of Nazianzos; later texts about Nicholas of Sion and Theodore of Sykeon described miracles and rural life.

The historical region of Syria became one of the main centers of miaphisite Christianity, embodied in the Oriental Orthodoxy, which had accepted only the first three ecumenical councils: Nicaea (325), Constantinople (381) and Ephesus (431). Miaphisite Christians were strongly opposed to Chalcedonian Creed that had been established by the Council of Chalcedon in 451. In the 5th and 6th centuries, the Syriac Orthodox Church that originated in Antioch continued to fracture into multiple denominations. Some Armenian miaphysite Christians sought to reunite with Rome in later centuries, but their efforts were unsuccessful.

Constantinople is generally considered to be the center and the "cradle of Orthodox Christian civilization". From the mid-5th century to the early 13th century, Constantinople was the largest and wealthiest city in Europe. The city became famous for its architectural masterpieces, such as Hagia Sophia, the cathedral of the Eastern Orthodox Church, which served as the seat of the Ecumenical Patriarchate, the sacred Imperial Palace where the Emperors lived, the Hippodrome, the Golden Gate of the Land Walls, and opulent aristocratic palaces. The University of Constantinople was founded in the fifth century and contained artistic and literary treasures before it was sacked in 1204 and 1453, including its vast Imperial Library which contained the remnants of the Library of Alexandria and had 100,000 volumes. The city was the home of the Ecumenical Patriarch of Constantinople and guardian of Christendom's holiest relics such as the Crown of thorns and the True Cross. During most of its existence, the Byzantine Empire was one of the most powerful economic, cultural, and military forces in Europe. The imperial role in the affairs of the Church never developed into a fixed, legally defined system. Additionally, due to the decline of Rome and internal dissension in the other Eastern Patriarchates, the Church of Constantinople became, between the 6th and 11th centuries, the richest and most influential centre of Christendom.

The Eastern Orthodox Church split from Rome during the Great Schism of 1054. With the arrival of the crusaders many Orthodox bishops, particularly in Antioch, were replaced by Latin prelates. After the Mongols defeated the Abbasid Caliphate in 1258, the Armenians and Nestorians had decent relations with the conquering Il-khans for a time, but by the end of the 14th-century many Syrian Orthodox and Nestorian churches were destroyed when the Turco-Mongolian ruler Temür raided West Asia.

Two out of the five centers (Patriarchates) of the ancient Pentarchy are in Turkey: Constantinople (Istanbul) and Antioch (Antakya). Antioch was also the place where the followers of Jesus were called "Christians" for the first time in history, as well as being the site of one of the earliest and oldest surviving churches, established by Saint Peter himself. For a thousand years, the Hagia Sophia was the largest church in the world.

Turkey is also home to the Seven Churches of Asia, where the Revelation to John was sent. Apostle John is reputed to have taken Virgin Mary to Ephesus in western Turkey, where she spent the last days of her life in a small house, known as the House of the Virgin Mary, which still survives today and has been recognized as a holy site for pilgrimage by the Catholic and Orthodox churches, as well as being a Muslim shrine. The cave of the Seven Sleepers is also located in Ephesus.

The death of the Forty Martyrs of Sebaste (modern day Sivas) is recorded as 320 AD during a persecution by Emperor Licinius. They are mentioned by Basil, Gregory of Nyssa, Ephrem the Syrian and John Chrysostom.

Ottoman Empire

In accordance with the traditional custom of the time, the Ottoman sultan Mehmed II allowed his troops and his entourage three full days of unbridled pillage and looting in the Christian city of Constantinople, capital of the Roman Empire since its foundation by the Roman Emperor Constantine the Great in the 4th century AD, shortly after it was captured in 1453. Once the three days passed, he would then claim its remaining contents for himself. However, by the end of the first day, he proclaimed that the looting should cease as he felt profound sadness when he toured the looted and enslaved city. The cathedral of Hagia Sophia was not exempted from the pillage and looting and specifically became its focal point, as the Ottoman Turks believed it to contain the greatest treasures and valuables of the city. Shortly after the defence of the Walls of Constantinople, the city collapsed and the Ottoman troops entered victoriously; the pillagers and looters made their way to the Hagia Sophia and battered down its doors before storming in.

Throughout the period of the siege of Constantinople, the trapped Christian worshippers of the city participated in the Divine Liturgy and the Prayer of the Hours at the Hagia Sophia and the church formed a safe-haven and a refuge for many of those who were unable to contribute to the city's defence, which comprised women, children, elderly, the sick, and the wounded. Being trapped in the church, the many congregants and yet more refugees inside became spoils-of-war to be divided amongst the Ottoman invaders. The building was desecrated and looted, with the helpless occupants who sought shelter within the church being enslaved. While most of the elderly, the infirm/wounded, and sick were killed, and the remainder (mainly teenage males and young boys) were chained up and sold into slavery.

The women of Constantinople also suffered from rape and sexual violence at the hands of Ottoman forces. According to historian Barbaro, "all through the day the Turks made a great slaughter of Christians through the city". According to historian Philip Mansel, widespread persecution of the city's civilian inhabitants took place, resulting in thousands of murders and rapes, and 30,000 civilians being enslaved or forcibly deported. George Sphrantzes says that people of both sexes were raped inside the church of Hagia Sophia.

The first capitulation concluded between the Ottoman Empire and a foreign state was that of 1535, granted to the Kingdom of France. The Ottoman Empire was then at the height its power, and the French king Francis I had shortly before sustained a disastrous defeat at the Battle of Pavia. His only hope of assistance lay in the Ottoman sultan Suleiman I. The appeal to Suleiman on the ground of the common interest of the Kingdom of France and the Ottoman Empire in overcoming the power of the Holy Roman Emperor Charles V overweening power was successful; thus was established the Franco-Ottoman alliance, and in 1536 the capitulations were signed. They amounted to a treaty of commerce and a treaty allowing the establishment of Christian Frenchmen in Ottoman Turkey and fixing the jurisdiction to be exercised over them: individual and religious liberty was guaranteed to them, the King of France was empowered to appoint consuls in Ottoman Turkey, the consuls were recognized as competent to judge the civil and criminal affairs of French subjects in Ottoman Turkey according to French law, and the consuls may appeal to the officers of the sultan for their aid in the execution of their sentences. This, the first of the capitulations, can be seen as the prototype of its successors.

Anglican, American Presbyterian, and German Lutheran missionaries arrived in the Ottoman Empire in the 19th century. During the same period, there were nationalistic campaigns against Assyrians which often had the assistance of Kurdish paramilitary support. In 1915, Turks and Kurds massacred tens of thousands Assyrians in Siirt. Assyrians were attacked in the Hakkari mountains by the Turkish army with the help of Kurdish tribes, and many Christians were deported and about a quarter million Assyrians were murdered or died due to persecution. This number doubles if the killings during the 1890s are included. Kurds saw the Assyrians as dangerous foreigners and enforcers of the British colonizers, which made it justifiable to them to commit ethnic cleansing. The Kurds fought the Assyrians also due to fears that the Armenians, or European colonial powers backing them, would assume control in Anatolia. Kurdish military plundered Armenian and other Christian villages.

In the 1890s the Hamidiye (Kurdish paramilitary units) attacked Armenians in a series of clashes that culminated in the Hamidian massacres of 1894-1896 and the Adana massacre in 1909. It is estimated that between 80,000 and 300,000 Armenians were killed during these pre-War massacres. Into the 19th century, the Christians of Istanbul tended to be either Greek Orthodox, members of the Armenian Apostolic Church or Catholic Levantines.

First World War

During the tumultuous period of the First World War, up to 3 million indigenous Christians are alleged to have been killed. Prior to this time, the Christian population stood at around 20% -25% of the total. According to professor Martin van Bruinessen, relations between Christians and Kurdish and other Muslim peoples were often bitter and during World War I "Christians of Tur Abdin (in Turkey) for instance have been subjected to brutal treatment by Kurdish tribes, who took their land and even their daughters".

Kurdish-dominated Hamidiye slaughtered Christian Armenians in Tur Abdin region in 1915. It is estimated that ten thousand Assyrians were killed, and reportedly "the skulls of small children were smashed with rocks, the bodies of girls and women who resisted rape were chopped into pieces live, men were mostly beheaded, and the clergy skinned or burnt alive...." In 1915, Turks and Kurds plundered the Assyrian village of Mar-Zaya in Jelu and slaughtered the population, it is estimated that 7,000 Assyrians were slaughtered during this period. In September 1914 more than 30 Armenian and Assyrian villages were burnt by Kurdish and Turkish mobs in the Urmia region. After the Russian army retreated, Turkish troops with Kurdish detachments organized mass slaughters of Assyrians, in the Assyrian village of Haftvan 750 men were beheaded and 5,000 Assyrian women were taken to Kurdish harems. Turks and Kurds also slaughtered Christians in Diarbekir. There was a policy during the Hamidian era to use Kurdish tribes as irregulars (Hamidiye units) against the Armenians.

Treaty of Lausanne

The Greek forces who occupied Smyrna in the post-war period were defeated in the Turkish War of Independence which ended with the signing of the Treaty of Lausanne. Under the terms of the peace treaty, 1.3 million Christian residents of Turkey were relocated to Greece and around 400,000 Muslims were likewise moved from Greece to Turkey. When the Turkish state was founded in 1923, the remaining Greek population was estimated to be around 111,000; the Greek Orthodox communities in Istanbul, Gökçeada, and Bozcaada numbering 270,000 were exempted. Other terms of the treaty included various provisions to protect the rights of religious minorities and a concession by the Turks to allow the Greek Orthodox Patriarchate to remain in Istanbul.

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