PRT 2008 LECT 2A - The Evolution of Agriculture The world...

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The Evolution of Agriculture Provided below are events indicating how recent  the phenomenon of farming is:  The world was formed ca 4,600 million years ago. Eukaryotic life forms appeared ca 1,000 million years ago. First hominid hunters and gatherers recorded ca 4 million years ago.
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Hunters & gatherers
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Human started farming ca 12,000 years ago Prehistoric Era Initially, grain crops were cultivated, like wild rye, then barley, wheat, peas and beans ; suggested sites are Asia Minor or Southwestern Asia (including Iran, Iraq (Fertile Crescent of Tigris & Euphrates), Israel, Jordan, Syria, Turkey), Nile valley, Europe (Danube river and Macedonia) and Indus river valley of India-Pakistan, China (Yangtze & Yellow River valleys); and maize in Americas (Central Mexico, Tehuacan Valley).  
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Barley Wheat
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metal tools , large scale cultivation started by the Sumerians and they started “empire building”… similar expansionary development with the Nile valley inhabitants. Full dependency on domestic crops and
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PRT 2008 LECT 2A - The Evolution of Agriculture The world...

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