Cocoa has a long history, it is currently belived that cocoa was discovered around 3200 BC.
Though cocoa was discovered doesnt mean they made chocolate right away, choclolate was belived to be invented in sometime between 1500 BC and 1500 CE
Chocolate was first brought to Europe in the 1500's
Milk choclolate was first invented in 1876 by Daniel Peter
Cocoa was once used as a currency in the region of Veracruz and Mexico
It can take up to 400 cocoa beans to make one pound of choclolate