The Aryan question

The linguistic starting point

Sanskrit belongs to the Indo-European family, which includes Greek, Latin, Persian, the Slavic, Celtic and Germanic languages and others across Europe and western Asia. The relationship was established in the eighteenth century and has never been seriously doubted; the reconstruction of a common ancestor language is the foundation of historical linguistics.

That family must have spread somehow. The mainstream reconstruction places the homeland in the Pontic-Caspian steppe in the fourth millennium BCE, with dispersal in several directions, and the Indo-Iranian branch reaching Iran and northern India in the second millennium.

The colonial inheritance

The question is burdened by its history. Nineteenth-century scholarship framed the arrival as an invasion of light-skinned Aryans subduing dark-skinned indigenes, mapped this onto caste and race, and the framework was used to justify colonial rule and later, in Europe, far worse. Mortimer Wheeler's mid-century claim that the Indus cities were destroyed by Aryan invaders belongs to this tradition and has been abandoned on archaeological grounds.

The invasion model is dead. What remains under discussion is migration — a gradual movement of pastoralist populations over generations — which is a different proposition and is not the same as conquest.

The positions

The migration position holds that Indo-Aryan speakers entered the subcontinent from the north-west after the decline of the Indus cities, bringing the language ancestral to Sanskrit. It is supported by linguistics, by the relationship between the Rigveda and the Iranian Avesta, by the absence of the horse from Indus remains and its prominence in Vedic material, and by genetic evidence for Steppe-derived ancestry entering South Asia in the second millennium BCE.

The indigenous position holds that Indo-Aryan speech is native to the subcontinent and that the Indus civilization was Vedic, with dispersal running outward rather than inward. It leans on the Sarasvati identification, on the absence of an archaeological signature of arrival, and on the argument that the Rigveda shows no memory of an external homeland.

Where the evidence stands

The great majority of specialists in linguistics, archaeology and genetics support some form of the migration position, and the genetic work published since 2018 — showing Steppe pastoralist ancestry entering the South Asian gene pool in the second millennium BCE, absent from the Rakhigarhi Indus individual — is generally taken as strong support.

The indigenous position is a minority view within the international academy and holds substantial ground in Indian public argument, where it is bound up with questions of national identity. Both facts are worth stating. What can be said without controversy is that the population of South Asia is the product of several ancient mixtures, that no modern community maps onto any of them, and that arguments deriving present political claims from third-millennium ancestry are not supported by the evidence in any direction.