The territory referred to as Illyria corresponded roughly to the area east of the Adriatic Sea in the Mediterranean Sea extending in the south to the mouth of the Vjosë. The first account of the Illyrian groups comes from Periplus of the Euxine Sea, an ancient Greek text written in the middle of the 4th century BC. The west was inhabited by the Thracian tribe of the Bryges while the south was inhabited by the Ancient Greek-speaking tribe of the Chaonians, whose capital was at Phoenice. Other colonies such as Apollonia, Epidamnos and Amantia, were established by Ancient Greek city-states on the coast by the 7th century BC.