Juha Janhunen, and others, suggest a homeland in South-Central Siberia, near Lake Baikal and the Sayan Mountains in the Russian-Mongolian border region, around 3000 BC. Similarly, Ante Aikio concludes that the time-depth of Uralic is roughly comparable to that of Indo-European, and based on areal typology, as well as lexicon, an origin in the vicinity of the Altaic (Turkic-Mongolic-Tungusic) Sprachbund appears more plausible than one in Europe, in the vicinity of Indo-European.