Certain tribes and subdivisions of tribes were named differently by ancient writers but modern research points out that these were in fact the same tribe.The Cambridge Ancient History, Volume 3, Part 2: The Assyrian and Babylonian Empires and Other States of the Near East, from the Eighth to the Sixth Centuries BC by John Boardman, I. E. S. Edwards, E. Sollberger, and N. G. L. Hammond, , 1992, page 601 The name Thracians itself seems to be a Greek exonym and we have no way of knowing what the Thracians called themselves.The Cambridge Ancient History, Volume 3, Part 2: The Assyrian and Babylonian Empires and Other States of the Near East, from the Eighth to the Sixth Centuries BC by John Boardman, I. E. S. Edwards, E. Sollberger, and N. G. L. Hammond, , 1992, page 597: "We have no way of knowing what the Thracians called themselves and if indeed they had a common name...Thus the name of Thracians and that of their country were given by the Greeks to a group of tribes occupying the territory..." Also certain tribes mentioned by Homer are not indeed historical.
