5.6 The Classical Period
CUp to the end of the first millennium A.D., we can think of India as the domain of a single civilization. Not everybody in the subcontinent was part of this civilization. Down to the present day there are significant tribal populations that are outside Hindu society, and there were probably more in the past; some of them are hunters and gatherers. Moreover, many aspects of the civilization varied from one part of India to another even at an elite level. Regions differed, for example, as to whether months began at new moon (as in most of the south) or full moon (as in most of the north). At a popular level the regional variations must have been even greater. But there was still an overarching cultural unity. Brahmins, for instance, were quite often on the move.  We know of Kashmiri Brahmins from the far north who settled among the Tamils in the far south. Manuscripts also traveled; Sanskrit texts written in the south in the script of Kerala show misreadings that could have arisen only in the process of copying from originals written in the script of Kashmir. By contrast, there was no parallel to this pan-Indian Aryan and Sanskrit role in the ethnic and linguistic makeup of the Mesoamerican cultural zone.
Cultural unity was not, however, matched by political unity. From time to time Indian history had its imperial episodes, as when empires were created and sustained by states based in the northeast. The Mauryas from the fourth to the second century B.C. were the earliest example of this, and the Guptas from the fourth to the sixth century A.D. were another. But these empires did not extend to the far south. The empire builders of the second millennium A.D. did better in this respect-but they were Muslim or British. This meant that some of India at all times, and most of it at most times, was divided among a plurality of regional states. Yet, as long as these states lavished patronage on the Brahmins, the overarching cultural unity of India was not in danger.
It is a frustrating, but also interesting, feature of Indian history that our knowledge of the fortunes of these states, large and small, is rather poor. For pre-Muslim India we have no equivalent to the rich historiography of China or the Islamic world. Instead, the history of these states must be reconstructed from the evidence of inscriptions, coins, and stray references in the literary sources. Usually this evidence is fragmentary at best, though there is a notable exception: the Mauryan emperor Agoka in the mid- third century B.C. is a distinctly historical figure. This great patron of the Buddhists has lef rock inscriptions in which he explains himself as a vegetarian universalist. Thus he tells us that formerly hundreds of thousands of animals were slaughtered daily in the royal kitchens, but that this has now been reduced to two peacocks and sometimes a deer, and that even this will be phased out.  He describes his remorse at the mass killing and deportation that had accompanied his conquest of the independent state of Kalinga; and he affirms that it is his duty to promote the welfare of the whole world, and so discharge his debt to all beings.
But Agoka is unique, and his inscriptions, for all their interest, are no substitute for a good chronicle. Why, then, do we have so little in the way of historical writing to inform us about the course of events in India? The obvious explanation would be that Indians did not write it. After all the ancient Egyptians did not produce anything that could really be called a chronicle. But a Chinese visitor of the seventh century A.D. refers to Indian officials charged with the writing of history, and the problem may rather have been that Indian society, and more especially its Brahmin cultural elite, did not preserve what these historians wrote once the dynasty they served had come to an end.
What this society did preserve, and in enormous quantities, was a literature of a broadly religious character. Since this preservation turned on continuous transmission, the texts available to us today are by and large only those of the schools of thought that survived.