two goods going in the other direction so i was interested to explore the western eastward stories biotite am also interested the intersection between culture and nature. that have strong effects on the nervous system and of the body or mediated through culture. to have cultural rituals but then it is a biological experience as well. been antidepressant threat coming out in a new way like this isotropic revolution when it be interesting to look at another revolution in history with europe that have no experience of stimulus beverages or tobacco and what happened once it got there? chocolate was the first stimulant beverage that preceded the in europe. >>host: was used as a political tool or was there such a demand for those two products that there were political consequences? >> absolutely just as it was with the native american he leads to become a diplomatic tool verisimilar if you're meeting someone also a good way to bribe an official as well with the foreign dignitaries to give them talk clipper or another way so it is an important item of state revenues of tobacco the single greatest