1 gen 1500 anni - City of Machu Picchu
Descrizione:
1450-1540 CEGranite
Central highlands, Peru. Inka
They increased the arable land surface and reduced erosion by creating walled steps down the sides of steep mountains. Each step could then be planted with crops.
Aggiunto al nastro di tempo:
Data:
1 gen 1500 anni
Adesso
~ 526 years ago