and gathering for hundreds of thousands of years Only 10,000 years ago did humans learn to cultivate plants, herd animals, and make airtight pottery to store food. River valley civilizations developed just 5,000 years ago which led to better harvest and ultimately increased populations These river valley civilizations—ie Nile, Indus, Tigris/Euphrates—invented writing, metallurgy, and commerce. Cities and complex religion took form. Kings, considered to be representatives of the gods or to be…
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