Book excerpt: Focusing on the Spanish Empire, Marcy Norton investigates how tobacco and chocolate became material and symbolic links to the pre-Hispanic past for colonized Indians and colonizing Europeans alike. Botanical ambassadors of the American continent, they also profoundly affected Europe. Tobacco, once condemned as proof of Indian diabolism, became the constant companion of clergymen and the single largest source of state revenue in Spain. Before coffee or tea became popular in Europe, chocolate was the drink that energized the fatigued and uplifted the depressed. However, no one could quite forget the pagan past of tobacco and chocolate, despite their apparent Europeanization: physicians relied on Mesoamerican medical systems for their understanding of tobacco; theologians looked to Aztec precedent to decide whether chocolate drinking violated Lenten fasts.