[00:00.30] [00:07.29]Now, however, imagine a world with no money [00:15.80]500 years ago, the most powerful society in South America, the Inca Empire, had no real concept of money [00:25.06]The Incas appreciated the aesthetic qualities of rare metals. [00:29.49]Gold was the sweat of the sun, silver the tears of the moon [00:34.01]labour was the unit of value in the Inca Empire, just as it was later supposed to be in a communist society. [00:44.42]But in 1532, the Incas ran into a man whose hunger for money had led him across an ocean. [00:51.88](Francisco Pizarro and his fellow Conquistadores had come from Spain to what they called Upper Peru)