Greek refugees Greek refugees Greek refugees is a collective term used to refer to the nearly one million Greek Orthodox natives of Asia Minor, Thrace and the Black Sea areas who fled during the Greek genocide (1914-1922) and Greece's later defeat in the Greco-Turkish War (1919–1922), as well as remaining Greek Orthodox inhabitants of Turkey who were required to leave their homes for Greece shortly thereafter as part of the population exchange between Greece and Turkey, which formalized the population transfer and barred the return of the refugees. This Convention Concerning the Exchange of Greek and Turkish Populations was signed in Lausanne,
Ancient Greek phonology and this cluster underwent metathesis early in the Ancient Greek period. Metathesis is likely in this case; clusters of a voiced stop and , like , do not occur in Ancient Greek, since they change to by assimilation (see below), while clusters with the opposite order, like , pronounced , do occur. Ancient grammarians, such as Aristotle in his "Poetics" and Dionysius Thrax in his Art of Grammar, categorized letters () according to what speech sounds ( 'elements') they represented. They called the letters for vowels ('pronounceable', singular ); the letters for the nasals, liquids, and , and the letters