The Incas diverted rivers and used sophisticated irrigation systems to transform ... he said that there was nothing comparable with the Inca road system. And if you see the extension of the ...

The Incas diverted rivers and used sophisticated irrigation systems to transform ... he said that there was nothing comparable with the Inca road system. And if you see the extension of the ...

The Inca state's domain was unprecedented, its rule resulting in a universal language - a form of Quechua, a religion worshipping the sun, and a 14,000 mile-long road system criss-crossing high ...