The Mind Creative JULY 2014 | Page 39

The Mind Creative March 2014 Nearly five thousand kilometres from north to south, it was not only the largest empire in the Americas, but also comparable in size to empires in other continents. Its population is estimated to have been 15 million, but it could have been anywhere from 4 million to 40 million. The Inca kept excellent census records using their “quipus”, but these were lost under Spanish occupation. Cuzco in fact is two cities in one: the Spanish town built over, sometimes alongside, the Inca structures, using the massive stone walls of the Incas. The Inca walls were made of massive stone slabs, cut to shape to fit like a jigsaw puzzle. These interlocking walls of stone slabs not only held in place without the use of mortar but even survived major earthquakes. Given the magnitude of Inca achievement with stones, their paved roads spanning the empire and an efficient communication system using relays, it is surprising that they knew neither the wheel nor even any system of writing. Some historians and anthropologists argue that, because of the mountainous terrain, the Incas had no use for the wheel. The 2720 metre high peak of Huayna Picchu, rising behind Machu Picchu 2430 metres. 39 Cuzco is impressive enough, but Machu Picchu in the Urubamba valley, perched over a ridge of the Andean mountain range, 2,430 metres above sea level, is simply astounding. Situated 80 kilometers northwest of