It does not follow, however, that the people of Central Macedonia, even if Bulgarian churches are in the ascendant among them, are really connected by ties of blood and language with Bulgaria rather than with Servia. If history is invoked we shall have to admit that under Dushan this region was a part of the Serb empire as under Simeon and Asen it was part of the Bulgarian. If an appeal is made to anthropology the answer is still uncertain. For while the Mongolian features--broad flat faces, narrow eyes, and straight black hair--which characterize the subjects of King Ferdinand can be seen--I myself have seen them--as far west as Ochrida, they may also be found all over Northern Servia as far as Belgrade though the Servian physical type is entirely different. There is no fixed connection between the anthropological unit and the linguistic or political unit. Furthermore, while there are well-marked groups who call themselves Serbs or Bulgarians there is a larger population not so clearly differentiated by physique or language. Undoubtedly they are Slavs. But whether Serb or Bulgarian, or intermediate between the two, no one to-day can demonstrate. Central Macedonia has its own dialects, any one of which under happy literary auspices might have developed into a separate language. And the men who speak them to-day can more or less understand either Servian or Bulgarian. Hence as the anonymous and highly authoritative author of "Turkey in Europe," who calls himself Odysseus, declares: "The practical conclusion is that neither Greeks, Servians, nor Bulgarians have a right to claim Central Macedonia. The fact that they all do so shows how weak each claim must be." Yet it was Bulgaria's intransigent assertion of her claim to Central Macedonia which led to the war between the Allies.