== Language == 

 In the article "Ancient Macedonian language" there is the following reference: 
 Vladimir Georgiev - The Genesis of the Balkan Peoples, The Slavonic and East European Review, Vol. 44, No. 103 (Jul., 1966), pp. 285-297ancient Macedonian is closely related to Greek, and Macedonian and Greek are descended from a common Greek-Macedonian idiom that was spoken till about the second half of the 3rd millennium BC. 
 I believe that this reference must be mentioned on the map.