Summary: This article presents the results of my research carried out since 1970 in the field of Eurasian languages. My research reveals systematic lexical and grammatical analogies between the Eurasian Languages spoken by nations belonging to 3 different races (white - Basques and Ugro-Finns; black - Dravidians; yellow - Japanese). The fact of systematic analogies excludes the possibility of coincidence or borrowing due to trade etc. The fact that it is possible to build even "parallel phrases" by means of old words and grammatical rules belonging to these languages - seems to indicate the existece of a prehistoric community (of political or religious character) in Eurasia - able to make nations of different races assume one and the same language - as their own.