(Class for All Levels) A plant's-eye view of the last half millennium, with a few glances backward towards the neolithic. How plants might see the cycles of privelege and proscription, their shifting status between sacred and secular. For example, tobacco seems to get along with everyone, while opium and alcohol are usually contentious. Why is coffee so unreasonably jealous? How the stimulants fueled the Enlightenment and conquered Europe.