And so began the process known to anthropologists as the Columbian Exchange—the transfer of foods and other materials from the New World to the Old World and vice versa. By the time the first Europeans arrived in the New World, farmers there were harvesting more than a hundred kinds of edible plants—potatoes, tomatoes, sunflowers, eggplants, avocados, sweet potatoes, peanuts, cashews, pineapples, papaya, guava, yams, manioc (or cassava), pumpkins, vanilla, a whole slew of beans and squashes, four types of chili peppers, and chocolate, among rather a lot else—not a bad haul.
