This can be contrasted with the slow spread of

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Unformatted text preview: rsal of chickens, citrus and peaches of Chinese origin, along the east–west axis of Eurasia. This can be contrasted with the slow spread of Eurasian livestock and non-spread of Eurasian crops southwards along Africa’s north–south axis24, the slow spread of Mexican corn and the non-spread of Mexican writing and wheels and Andean llamas and potatoes along the Americas’ north–south axis, and the slow spread of food production southwards along the north–south axis of the Indian subcontinent. This is not to deny the existence of ecological barriers at the same latitude within Asia and North America, but the general pattern remains. Eurasia’s east–west axis, and the resulting rapid enrichment of societies in each part of Eurasia by crops and technologies from other parts of Eurasia, became one of the main ultimate reasons why Eurasian peoples conquered Native American peoples, rather than visa versa. Eurasia’s east–west axis also explains why there is much less evidence for multiple independent domestications of the same plant sp...
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This note was uploaded on 12/10/2012 for the course HORT 306 taught by Professor Staff during the Fall '08 term at Purdue University-West Lafayette.

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