Though the population of primitive Tamil Nadu was divided into five geographical classes, they were not heterogeneous tribes speaking different languages like those of Africa, Australia and America, but constituted one homogeneous race having Tamil as their common language, differing only in technical terms and standard of verbal richness, in accordance with the stage of civilization they had reached. The consolidation of the five geographical dialects into one major language was effected only at a later stage when Kingship was instituted. The application of the maxim ‘Community of language is a sign of community of descent’ in regard to the primitive Tamilians, is not hindered by any historical consideration.

     “Throughout South India there is no geological or other indication of catastrophic phenomena when the Palaeolithic Age ended; in several places Palaeolithic settlements shade off gradually into Neolithic ones. Hence it is safer to conclude that the Neolithic Epoch came as a result of gradual evolution from the preceding age. The substitution of trap-rock for quartzite, the acquisition of the skill to polish the tools made with trap-rock till they become extraodinarily smooth to the touch, the domestication of the wild dog, and the cultivation of the wild rice led to the peaceful evolution of the epoch of new stone tools from that of the older rough implements, the settled life of the Neolithians from the nomad life of the Palaeolithians.”

     “........ A careful study of South Indian prehistoric antiquities in situ cannot lead to any other conclusion than that the passage of culture from stage to stage in ancient times was not a catastrophic change such as indicates the struggle of alien intruders with the pre-existing population but a peaceful course of evolution.”

     “........An examination of several Neolithic sites proves that the passage from the Lithic to the Iron Age was not catastrophic