Ancient Peruvian Hallucinogen Use May Have Cemented Power, Social Order
[html]Limiting access to mind-altering substances may have provided leaders with a means to create, control a class system.[/html]
Source: Ancient Peruvian Hallucinogen Use May Have Cemented Power, Social Order (http://ht**://www.discovermagazine.c**/the-sciences/ancient-peruvian-hallucinogen-use-may-have-cemented-power-social-order)