In A Cultural History of India, A.L. Basham notes that “[by] the fifth century CE, Indianised states, that is to say states organised along the tradi… - Arthur Llewellyn Basham

Though its fame is much restricted by its specialized nature, there is no doubt that Panini's grammar is one of the greatest intellectual achievements of any ancient civilization, and the most detailed and scientific grammar composed before the 19th century in any part of the world.

Direct testimony to the assumed fact is lacking, and no tradition of an early home beyond the frontier survives in India.

The ancient civilisation of India differs from those of Egypt, Mesopotamia and Greece, in that its traditions have been preserved without a break down to the present day. Until the advent of the archaeologist, the peasant of Egypt or Iraq had no knowledge of the culture of his forefathers, and it is doubtful whether his Greek counterpart had any but the vaguest ideas about the glory of Periclean Athens. In each case there had been an almost complete break with the past. On the other hand…to this day legends known to the humblest Indian recall the names of shadowy chieftains who lived nearly a thousand years before Christ, and the orthodox Brahman in his daily worship repeats hymns composed even earlier. India and China have, in fact, the oldest continuous cultural traditions in the world.