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  • had no method of writing. used quipos, or knotted cords.
  • asked for a peaceful surrender before attacking a tribe.
  • didn't use mortar for buildings so rocks could slide together during a frequent earthquake instead of collapsing.
  • used vertical economy- the growing of crops according to the height of the land.
  • made buildings of boulders that were sanded smooth.
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15y ago

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