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世界史关键时刻·英语30篇(4)

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Irrigation Canals Built Empires in Andean Highlands

Irrigation Canals Built Empires in Andean Highlands

安第斯高原灌溉渠筑就帝国

  1. Inca engineers dug canals high in the Andes mountains.
  2. Water flowed from snowmelt to terraced fields on steep slopes.
  3. Farmers grew potatoes, maize, and quinoa using this system.
  4. Canal networks required community work and central planning.
  5. Surplus food supported armies, messengers, and road builders.
  6. This engineering helped unite millions under one imperial rule.
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