Students in my OSU class in La Grande were asked to from groups of two or three, pick a crop or animal now grown commercially in the Northwest, and make short oral presentations explaining their subjects’ botanical or biological and geographical roots, and then follow them to the present. This is all part of the discussion of the Columbian Exchange and establishing in their minds the idea that farming and agriculture did not just originate in the Tigris-Euphrates, but also in what is now Peru and Mexico, Guatemala and Brazil. (And Asia and Africa for that matter.) Over half of all “world crops” originated in this hemisphere—think maize, tobacco, rubber, manioc, potato, and tomato!