Yet here is precisely where anthropologists might make a useful contribution, if only their scholarly associates would stop thinking of the Rig Veda … - Edmund Leach

Records are preserved because they provide a charter for what historians believe about the present. Different historians may believe different things, and the records are interpreted (and modified) accordingly.

If we accept all this, then the Aryan invaders appear as a race of chariot-riding heroes who conquer a population of servile peasant barbarians, the Dasa (Dasyu). This is a familiar story. Crossland, writing as a skeptic about traditions concerning the origin of Greco-Roman civilization, remarks: ‘The role of the Indo-European peoples in the ancient world has been portrayed too often as the incarnation of northern virility sweeping down in massed chariots to bring new vigour to the decadant south’ (1971:826). Where India is concerned, the construction of this mytho-history was complete by 1920 and it was being written about as if it were fully authenticated history….

Common sense might suggest that here was a striking example of a refutable hypothesis that had in fact been refuted. Indo-European scholars should have scrapped all their historical reconstructions and started again from scratch. But that is not what happened. Vested interests and academic posts were involved. Almost without exception the scholars in question managed to persuade themselves that despite appearances the theories of the philologists and the hard evidence of archeology could be made to fit together. The trick was to think of the horse-riding Aryans as conquerors of the cities of the Indus civilization in the same way that the Spanish conquistadores were conquerors of the cities of Mexico and Peru or the Israelites of the Exodus were conquerors of Jericho. The lowly Dasa of the Rig Veda , who had previously been thought of as primitive savages, were now reconstructed as members of a high civilization who were destined to subordination because of their dark skins. The Aryan invaders could still be considered the originators of Indian civilization because they wiped out by fire and slaughter whatever was there before.