Inequality affected some ancient societies, but not all. Changes in farming – and the animals used in it – might have been a factor which caused it to spiral.
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The popular image of the light-skinned European hunter-gatherer is not correct. DNA taken from a 7,000-year-old wisdom tooth found in Spain in 2006 shows a different story. A study of the tooth shows that the man who owned it had dark hair, blue eyes, and the dark-skinned genes of an African