From the arrival of Europeans in the Pacific in the 16th century, introduced psychoactive drugs have played a crucial role in the history of societies from China to Peru, and from Alaska to Australia. Tobacco, followed by opium, distilled alcohol, caffeinated drinks, as well as laboratory drugs such as morphine and cocaine, became standardized and massively produced commodities. These substances joined a local base of indigenous drugs and fermented beverages to create new traditions of consumption that characterized entire peoples and cultures. They were also tools of European domination, so...