From the perspective of classical Greece, Thracia included the territory north of Thessaly, with no definite boundaries,[REF] sometimes to the inclusion of Macedonia and Scythia minor [REF].
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", "eparchy of the Thracians") was established as a Roman province.