East Thrace the Turkish Straits) and the Sea of Marmara, a route of about 361 km. The southernmost part of Eastern Thrace is called the Gallipoli peninsula. European Turkey is bordered on the west by Greece for 212 km and on the north by Bulgaria for 269 km, with the Aegean Sea to the south-west and the Black Sea to the north-east. East Thrace was the setting for several important events in history and legend. The mass killings and displacement of Thracian Bulgarians in 1913 and the 1923 population exchange between Greece and Turkey ethnically cleansed the Orthodox populations. Prior to that
Bulgarian Catholic Apostolic Vicariate of Thrace Bulgarian Catholic Apostolic Vicariate of Thrace The Bulgarian Catholic Apostolic Vicariate of Tracia (informally Tracia of the Bulgarians) was the second missionary, pre-diocesan jurisdiction of the Bulgarian Greek Catholic Church "sui iuris" (Eastern Catholic, Byzantine Rite in Bulgarian language). As Apostolic Vicariate it was exempt, i.e. directly dependent on the Holy See, and entitled to a titular bishop. It was established on 7 April 1883 as Bulgarian Catholic Apostolic Vicariate of Tracia alias Hadrianopolis (after its see Adrianople, now Edirne, in Turkish Thrace) on Ottoman Turkish and Bulgarian territory in Thrace split off from the Bulgarian Catholic Apostolic Vicariate of