In the case of the Balkans this interest is obviously related to the ongoing diplomatic crisis which followed the break-up of Yugoslavia. The dispute between Athens and Skopje over the name "Macedonia" made Greece part of the Yugoslav crisis and attracted the attention of various organisations. Thus, a considerable part of their reports on the Balkans deals with the Slav-speaking population of Greece and its course through history. Reports like these would be indifferent to a historian, had they not directly referred to the demographic picture of Macedonia in the past as back as far the eve of the Treaty of Bucharest; a Treaty which ended the Balkan Wars (1912-1913) and interrupted a lengthy diplomatic game, played since 1878 by Greece, Bulgaria, Serbia, and the Great Powers, concerning the demise of the Ottoman Empire and the future of Macedonia. The researcher is amazed at the realisation that estimates of the number of Slav-speakers in Greece today are not based on modern, official statistics but constitute a mere revival -a rather clumsy one though- of statistical "games" which were played long ago.