So many years ago chewing leaves was the norm in Peru. You could find a man pulling a tree off it’s root and still look normal,what was special about those leaves?,where all Peruvians vegetarians? Or did the leave have something irresistible that kept drawing the Peruvians……by 1532 their treasure was lost, the Spanish invaded Peru forced laborers to Spanish silver mines supplied them constantly with coca leaves (wickedly now,since it gave easier access to exploit labour).
Thousands of centuries passed, laborers were relegated to hellish work experiences.

“where the night is perpetual. It is always necessary to work by candlelight, with the air thick and evil-smelling, enclosed in the bowels of the earth.The ascent and descent are highly dangerous, for they come up loaded with their sack of metal tied to their backs, taking fully four or five hours step by step, and if they make the slightest false step they may fall seven hundred feet.”
epicworldhistory

The leaf that got the world crazy was coca and what made people go exceptionally beyond their abilities was cocaine.Cocaine was first extracted from coca leaf in 1859,since then it. .............
https://bcsquareblog./2015/10/20/cocaine/