The Slavs emerged from their original homeland (most commonly thought to have been in Eastern Europe) in the early 6th century and spread to most of eastern Central Europe, Eastern Europe and the Balkans, thus forming three main branches - the West Slavs, the East Slavs and the South Slavs.
Most of the Thracians were eventually Hellenized or Romanized, with the last remnants surviving in remote areas until the 5th century [REF].