Thracia

Provincia Thracia ἐπαρχία Θρᾳκῶν
Province of the Roman Empire
← 46–7th century →
The province of Thracia within the Roman Empire, c. 125 AD
Capital		Heraclea Perinthus, Philippopolis
Historical era		Classical Antiquity
•	Roman client state of Thrace annexed	46
•	Division by Diocletian	c. 293
•	Theme of Thrace established	7th century
Today part of		Bulgaria  Greece  Turkey

Thracia or Thrace (Θρᾴκη Thrakē) is the ancient name given to the southeastern Balkan region, the land inhabited by the Thracians.

From the perspective of classical Greece, Thracia included the territory north of Thessaly, with no definite boundaries, sometimes to the inclusion of Macedonia and Scythia minor. Later, Thracia proper was understood to include the territory bordered by the Danube on the north, by the Black Sea on the east, by Macedonia in the south and by Illyria to the west, roughly equivalent with the territory of the Thracian kingdom as it stood during the 5th to 1st centuries BC.

With the annexation of the Thracian kingdom by the Roman Empire, by order of emperor Claudius, in AD 46, Thracia (formally provincia Thracia "Thracian province", ἐπαρχία Θρᾳκῶν "eparchy of the Thracians") was established as a Roman province. After the administrative reforms of the 3rd century, Thracia was reduced to the territory of the six small provinces of the Diocese of Thrace. Later still, the medieval Byzantine theme of Thracia contained only what today is Eastern Thrace.

The Odrysian kingdom of Thrace became a Roman client kingdom c. 20 BC, while the Greek city-states on the Black Sea coast came under Roman control, first as civitates foederatae ("allied" cities with internal autonomy). After the death of the Thracian king Rhoemetalces III in 46 AD and an unsuccessful anti-Roman revolt, the kingdom was annexed as the Roman province of Thracia.

...
Wikipedia