How Caste Began: Ambedkar's Endogamy Thesis

The most durable account of where caste comes from was written by a twenty-five-year-old Indian student at a Columbia anthropology seminar in 1916. Ambedkar's Castes in India: Their Mechanism, Genesis and Development is not where most contemporary writers would expect the foundational analysis to sit. It is, nevertheless, where it sits. The paper isolates a single mechanism — endogamy — as the essence of caste, derives everything else from it, and in doing so makes most subsequent caste theory look like elaboration around a missing centre.

The thesis is hard to misstate but easy to underrate. Caste is not occupation, not hierarchy, not ritual pollution, not race. It is the closed reproductive circle. Hierarchy, occupation, and ritual are scaffolding that exists to maintain the closure. Get the centre wrong and a century of analysis goes wrong with it.

Ambedkar begins by clearing the field. He takes the major characteristics that scholars had used to define caste and shows that each of them fails the basic test — they exist in other societies without producing what India has.

This critical evaluation of the various characteristics of Caste leave no doubt that prohibition, or rather the absence of intermarriage-endogamy, to be concise is the only one that can be called the essence of Caste when rightly understood. But some may deny this on abstract anthropological grounds for there exist endogamous groups without giving rise to problem of Caste. In a general way this may be true, as endogamous societies, culturally different, making their abode in localities more or less removed, and having little to do with each other are a physical reality. The negroes and the whites and the various tribal groups that go by name of American Indians in the United States may be cited as more or less appropriate illustrations in support of this view. But we must not confuse matters, for in India the situation is different. As pointed out before, the peoples of India form a homogeneous whole. The various races of India occupying definite territories have more or less fused into one another and do possess cultural unity, which is the only criterion of a homogeneous population. Given this homogeneity as a basis Caste becomes a problem altogether new in character and wholly absent in the situation constituted by the mere propinquity of endogamous, social or tribal groups. Caste in India means an artificial chopping off the population into fixed and definite units, each one prevented from fusing into another through the custom of endogamy. Thus the conclusion is inevitable that Endogamy is the only characteristic that is peculiar to caste, and if we succeed in showing how endogamy is maintained, we shall practically have proved the genesis and also the mechanism of Caste.

— Castes in India, page 7.

Notice what the move does. He is not arguing that caste lacks hierarchy or occupation. He is arguing that hierarchy and occupation cannot define caste because they exist in plenty of societies that do not produce caste. Endogamy is the one feature whose absence reliably ends the system and whose presence reliably maintains it. By that test, it is the essence. Everything else is a consequence.

He then makes the historical claim. Caste is not a natural extension of Indian society. It is a violent imposition on a population that was originally exogamous.

Nothing is therefore more important for you to remember than the fact that endogamy is foreign to the people of India. The various GOTRAS of India are and have been exogamous, so are the other groups with totemic organization. It is no exaggeration to say that with the people of India exogamy is a creed and none dare infringe it, so much so that, inspite of the endogamy of the Castes within them exogamy is strictly observed and that there are more rigorous penalties for violating exogamy than are for violating endogamy. You will, therefore, readily see that with exogamy the rule there could be no Caste, for exogamy means fusion. But we have castes ; consequently in the final analysis creation of castes, so for as India is concerned, means the superposition of endogamy on exogamy. However, in an originally exogamous population an easy working out of endogamy (which is equivalent to the creation of Caste) is a grave problem, and it is in the consideration of the means utilized for the preservation of endogamy against exogamy that we may hope to find the solution of our problem.

— Castes in India, pages 8–9.

This is more radical than it looks. The civilisational story India tells about itself — that caste is ancient, organic, evolved — falls apart in this passage. Caste was superposed on an exogamous base. It is a structure, not a sediment. Someone built it. Someone has to keep building it.

The third passage closes the loop by showing what the famous Hindu customs are actually for. Sati, enforced widowhood, and girl marriage have always been defended as religious ideals. Ambedkar argues they are, instead, mechanical solutions to a demographic problem that strict endogamy creates.

Sati, enforced widowhood and girl marriage are customs that were primarily intended to solve the problem of the surplus man and surplus woman in a caste and to maintain its endogamy. Strict endogamy could not be preserved without these customs, while caste without endogamy is a fake.

— Castes in India, page 18.

A common objection to the endogamy thesis is that it reduces a vast, layered phenomenon to a single mechanism. But Ambedkar is not denying the layering; he is naming the load-bearing wall. Hierarchy, occupation, ritual, pollution — these are real, and they organise enormous swathes of life. They are also dependent. Remove endogamy and they decompose into ordinary social inequality, ordinary craft specialisation, ordinary ritual practice. None of them, taken alone or in combination, reproduces caste.

The reason this 1916 paper still functions as a key to the present is that the customs Ambedkar identified as endogamy-maintenance are not the only such customs. Every generation invents new ones, modulated to its own demographic and economic shape. Matrimonial pages still organise by sub-caste. Networked elite schools produce homogamous marriage pools by other means. The forms change. The function does not. Castes in India describes the machinery; the machinery is still running.