Paul Freedman is the Chester D. Tripp Professor of History at Yale University. He is the author of "Out of the East: Spices and the Medieval Imagination" and editor of "Food: The History of Taste".Joyce E. Chaplin is the James Duncan Phillips Professor of Early American History at Harvard University. Her publications include "Round about the Earth: Circumnavigation from Magellan to Orbit" and "Benjamin Franklin s Political Arithmetic: A Materialist View of Humanity."Ken Albala is Professor of History at the University of the Pacific. He is the author of more than a dozen books, including "Eati...