Population exchange between Greece and Turkey in the context of "Greek refugees"

The Greeks in Turkey constitute a small population of Greek and Greek-speaking Eastern Orthodox Christians who mostly live in Istanbul, as well as on the two islands of the western entrance to the Dardanelles: Imbros and Tenedos (Turkish: Gökçeada and Bozcaada). Greeks are one of the four ethnic minorities officially recognized in Turkey by the 1923 Treaty of Lausanne, together with Jews, Armenians, and Bulgarians.

They are the remnants of the estimated 200,000 Greeks who were permitted under the provisions of the Convention Concerning the Exchange of Greek and Turkish Populations to remain in Turkey following the 1923 population exchange, which involved the forcible resettlement of approximately 1.2 million Greeks from Anatolia and East Thrace and of half a million Turks from all of Greece except for Western Thrace. After years of persecution (e.g. the Varlık Vergisi, the Istanbul Pogrom and the 1964 expulsion of Istanbul Greeks), emigration of ethnic Greeks from the Istanbul region greatly accelerated, reducing the Greek minority population from 119,822 before the 1955 pogrom to about 7,000 by 1978. The 2008 figures released by the Turkish Foreign Ministry places the current number of Turkish citizens of Greek descent at the 3,000–4,000 mark.However, according to the Human Rights Watch the Greek population in Turkey is estimated at 2,500 in 2006. The Greek population in Turkey is collapsing as the community is now far too small to sustain itself demographically, due to emigration, much higher death rates than birth rates and continuing discrimination.

Christianity in Turkey has a long history, dating back to the early origins of Christianity in Asia Minor and the Middle East during the 1st century AD. In modern times the percentage of Christians in Turkey has declined from 20 to 25% in 1914, to about 2% in 1927, to 0.2–0.4% today. Sources estimate that the Christian population in Turkey ranges between 203,500 and more than 370,000. However, the exact number remains unclear due to the absence of a religious census in the country. The percentage of Christians in Turkey fell mainly as a result of the late Ottoman genocides: the Armenian genocide, Greek genocide, and Assyrian genocide, the population exchange between Greece and Turkey, the emigration of Christians that began in the late 19th century and gained pace in the first quarter of the 20th century, and due to events such as the 1942 Varlık Vergisi tax levied on non-Muslim citizens in Turkey and the 1955 Istanbul pogrom against Greek and Armenian Christians. Exact numbers are difficult to estimate, as many Turkish former Muslim converts to Christianity often hide their Christian faith for fear of familial pressure, religious discrimination, and persecution.

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.

The Convention Concerning the Exchange of Greek and Turkish Populations (Greek: Σύμβαση για την Ανταλλαγή των ελληνικών και τουρκικών Πληθυσμών, romanized: Symvasi gia eis Antallagi ton ellinikon kai tourkikon Plithysmon, Turkish: Türk ve Yunan Nüfuslarının Mübadelesine İlişkin Sözleşme), also known as the Lausanne Convention, was an agreement between the Greek and Turkish governments signed by their representatives in Lausanne on 30 January 1923, in the aftermath of the Greco-Turkish War of 1919–1922. The agreement provided for the simultaneous expulsion of Orthodox Christians from Turkey to Greece and of Muslims from Greece (particularly from the north of the country) to Turkey. These involuntary population transfers involved approximately two million people, around 1.5 million Anatolian Greeks and 500,000 Muslims in Greece.

The expulsion of Istanbul Greeks (Turkish: 1964 Rum Tehciri or 1964 Rum Sürgünü) in 1964–1965 was a series of discriminatory measures by the authorities of the Republic of Turkey, then governed by the CHP party, aimed at the forced expulsion of the Greek population of Istanbul (Greek: Κωνσταντινούπολις, romanized: Kōnstantinoúpolis). Though the Greeks of Istanbul were initially excluded from the Greek–Turkish population exchange of 1923 and were allowed to remain in their native city, the Turkish government enacted a series of measures that resulted in a dramatic decrease in their numbers, such as the "wealth" tax of 1942 and later the anti-Greek pogrom of September 1955.

Especially during the 1950s and 1960s, the Greek minority was used as an apparatus of pressure for the Cyprus issue as part of the Greek–Turkish relations. The anti-Greek measures of 1964–1965 resulted in a drastic reduction in the number of Greeks in Istanbul. As such, from a population of about 80,000 only about 30,000 remained in 1965. The measures also resulted in the appropriation of minority-owned properties by the Turkish state and were accompanied by restrictions in the fields of religion and education. The expulsion during this period was part of the final phase of state measures aimed at the Turkification of the local economic, social, and cultural life.

The Asia Minor Greeks (Greek: Μικρασιάτες, romanized: Mikrasiates), also known as Asiatic Greeks or Anatolian Greeks, make up the ethnic Greek populations who lived in Asia Minor from the 13th century BC as a result of Greek colonization, up until the forceful population exchange between Greece and Turkey in 1923, though some communities in Asia Minor survive to the present day.

The Pontic Greeks (Pontic: Ρωμαίοι, Ρωμιοί; Turkish: Pontus Rumları or Karadeniz Rumları; Greek: Πόντιοι, Ελληνοπόντιοι), also Pontian Greeks or simply Pontians, are an ethnically Greek group indigenous to the region of Pontus, in northeastern Anatolia (modern-day Turkey). They share a common Pontic Greek culture that is distinguished by its music, dances, cuisine, and clothing. Folk dances, such as the Serra (also known as Pyrrhichios), and traditional musical instruments, like the Pontic lyra, remain important to Pontian diaspora communities. Pontians traditionally speak Pontic Greek, a modern Greek variety, that has developed remotely in the region of Pontus. Commonly known as Pontiaka, it is traditionally called Romeika by its native speakers.

The earliest Greek colonies in the region of Pontus begin in 700 BC, including Sinope, Trapezus, and Amisos. Greek colonies continued to expand on the coast of the Black Sea (Euxeinos Pontos) between the Archaic and Classical periods. The Hellenistic Kingdom of Pontus was annexed by Rome in 63 BC becoming Roman and later Byzantine territory. During the 11th century AD, Pontus was largely isolated from the rest of the Greek–speaking world, following the Seljuk conquest of Anatolia. After the 1203 siege of Constantinople by the Fourth Crusade, the Empire of Trebizond was established on the Black Sea coast by a branch of the Komnenos dynasty, later known as 'Grand Komnenos'. Anatolia, including Trebizond, was eventually conquered by the Ottomans entirely by the 15th century AD. Greek presence in Pontus remained vibrant during the early modern period up until the 20th century, when, following the Pontic Greek genocide and the 1923 population exchange with Turkey, Pontic Greeks migrated primarily to Greece and around the Caucasus, including in the country of Georgia. Although the vast majority of Pontic Greeks are Orthodox Christians, those who remained in Northeastern Turkey's Black Sea region following the population exchange are Muslim; their ancestors having converted to Islam during the Ottoman period, like thousands of other Greek Muslims.

Mustafa Kemal Atatürk (c. 1881 – 10 November 1938) was a Turkish field marshal and statesman who was the founder of the Republic of Turkey, serving as its first president from 1923 until his death in 1938. He undertook sweeping reforms, which modernized Turkey into a secular, industrializing nation. Ideologically a secularist and nationalist, his policies and socio-political theories became known as Kemalism.

Born in Salonica in the Ottoman Empire, his early military career saw him involved in the Italo-Turkish and Balkan Wars. As a member of the Committee of Union and Progress and the Young Turks, he played an important part in political events of the late Ottoman Empire, such as the Young Turk Revolution and the 31 March Incident. He rose to prominence with his role in the Defence of Gallipoli during World War I. Following the defeat of the empire after the war, he led the Turkish National Movement, which resisted the empire's partition among the victorious Allied powers. Establishing the provisional "Ankara government", he defeated the forces sent by the Allies, thus emerging victorious from the Turkish War of Independence. During and after the war, the ethnic cleansing of Armenians and Greeks from Anatolia outside of Istanbul, including the Kars region invaded by the Kemalist armies, was largely completed via large-scale massacres, flight, expulsions, and the population exchange between Greece and Turkey. His government subsequently proceeded to abolish the Ottoman sultanate in 1922 and proclaimed the Republic of Turkey in its place in 1923.

A titular see in various churches is an episcopal see of a former diocese that no longer functions, sometimes called a "dead diocese". The ordinary or hierarch of such a see may be styled a "titular metropolitan" (highest rank), "titular archbishop" (intermediary rank) or "titular bishop" (lowest rank), which normally goes by the status conferred on the titular see.

Titular sees are dioceses that no longer functionally exist, often because the territory was conquered by Muslims or because it is schismatic. The Greek–Turkish population exchange of 1923 also contributed to titular sees. The see of Maximianoupolis along with the town that shared its name was destroyed by the Bulgarians under Emperor Kaloyan in 1207; the town and the see were under the control of the Latin Empire, which took Constantinople during the Fourth Crusade in 1204. Parthenia, in north Africa, was abandoned and swallowed by desert sand.

Nea Erythraia (Greek: Νέα Ερυθραία) is a town and a suburb in the northeastern part of the Athens agglomeration, Greece. It was settled by Greek refugees from Erythraia (now Cesme, Turkey) after the 1923 Population Exchange. Since the 2011 local government reform it is part of the municipality Kifissia, of which it is a municipal unit.