Ir­ri­ga­tion Canals

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Asian Geographic - - Culture - Sumer and China

c. 2,400 BC

Ev­ery farmer knows that rain­fall can be an un­re­li­able source of wa­ter for crops. To solve this prob­lem, the farm­ers of Sumer and China be­gan to dig ir­ri­ga­tion canals around 2,400 BC. A se­ries of ditches and gates di­rected river wa­ter out into the fields, re­sult­ing in a marked in­crease in agri­cul­tural pro­duc­tiv­ity.

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