"Thrace (/θreɪs/; Greek: Θράκη, Thráki; Bulgarian: Тракия, Trakiya; Turkish: Trakya) is a geographical and historical region in Southeast Europe, now split among Bulgaria, Greece and Turkey, ...
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which is bounded by the Balkan Mountains to the north, the Aegean Sea to the south and the Black Sea to the east. It comprises southeastern Bulgaria (Northern Thrace), northeastern Greece (Western Thrace) and the European part of Turkey (East Thrace)." - (en.wikipedia.org 02.02.2020)