town, east-central Bulgaria, on the Tundzha (Tundja) River. North of the present town are the ruins of Kabyle (or Cabyle), which originated as a Bronze Age settlement in the 2nd millennium BC and was conquered by the Macedonians under Philip II in 342-341 BC. Taken by Rome in 72 BC, Kabyle became a city in the Roman province of Thrace, governing the middle reaches of the Tundzha (ancient Tonsus) and serving as a rest stop on the road to Adrianople (now Edirne). It was the seat of a bishopric in the 4th century AD and disappeared in the 6th century. Finds from excavations at Kabyle are in the Regional Museum of Yambol.
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