English: Ethnological map by Professor Constant Desjardins (1787‒1876). This map bears the title „Serbia and the districts in which Serbian language is spoken". It was issued in Belgrade in 1853. The author states that his map had been put together according to Serbian authors. Per this map, the area where Serbian language is spoken stretches approximately northwest from the line: Prizren-Pristina-Prokuplje-Nis.
Date
Source
D. Rizoff, The Bulgarians in their historical, ethnographical and political frontiers 679–1917 (1917).Berlin, Königliche Hoflithographie, Hof-Buch- und -Steindruckerei W. Grewe.,
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