Academic discourse in philology, ethnology, archaeology, paleontology, biology, and religion was plumbed in the eighteenth and nineteenth centuries t… - Jim G. Shaffer

A key to understanding the Indo-Gangetic cultural tradition's structure is its economic and cultural focus on cattle.

It is currently possible to discern cultural continuities linking specific prehistoric social entities in South Asia into one cultural tradition. This is not to propose social isolation nor deny any outside cultural influence. Outside cultural influences did affect South Asian cultural development in later, especially historic, periods, but an identifiable cultural tradition has continued, an Indo-Gangetic Cultural Tradition linking social entities over a time period from the development of food production in the seventh millennium BC to the present.

The Mehrgarh excavations near Sibri, Pakistan, changed our understanding of the origins of food production - the use of domesticated plants and animals in a neolithic context - in South Asia. Previously, food production and the entire “village way o f life” were perceived as a single complex, diffused from the W est sometime after 5000 B.C. They, in turn, were followed by the “idea” of civilisation only a few millennia later, then by the Aryan, Greek, Muslim and British invasions. The acceptance of one incidence of cultural diffusion/invasion made the others seem that much more reasonable.