The Inca Empire stretched over 5,500 kilometres and ... manure that dropped on the fields would increase the production of crops such as potatoes and other Andean crops. And for all these reasons ...

It was the dawn of empire. Massed on a high ... road networks into interconnected highways. Inca farmers mastered high-altitude agriculture, cultivating some 70 different native crops and often ...

using dramatic terraces like these at Moray to grow warm-weather crops in a cold-weather climate. The Inca Empire encompassed mountains, forests, desert, and coastal plains. In order to move ...

The Inca Empire stretched over 5,500 kilometres and ... manure that dropped on the fields would increase the production of crops such as potatoes and other Andean crops. And for all these reasons ...

"Land of the Four Quarters" or Tahuantinsuyu is the name the Inca gave to their empire. It stretched north to south some 2,500 miles along the high mountainous Andean range from Colombia to Chile ...

"Land of the Four Quarters" or Tahuantinsuyu is the name the Inca gave to their empire. It stretched north to south some 2,500 miles along the high mountainous Andean range from Colombia to Chile ...