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APHG Agriculture (Von Thünen (agricultural land use, circle - central city…
APHG Agriculture
Von Thünen
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first ring - dairying, horticulture, and market gardening
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Revolutions
First
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Root crops - 14,000 years; seed - 10,000 years
animal domestication - 8,000
cow, pig, sheep, horse, goat
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