It’s important to stress that we are not arguing that the very first cities to appear in any region of the world were invariably founded on egalitarian principles (in fact, we will shortly see a perfect counter-example). What we are saying is that archaeological evidence shows this to have been a surprisingly common pattern, which goes against conventional evolutionary assumptions about the effects of scale on human society. In each of the cases we’ve considered so far – Ukrainian mega-sites, Uruk Mesopotamia, the Indus valley – a dramatic increase in the scale of organized human settlement
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