Jack Weatherford is the New York Times bestselling author of Genghis Khan and the Making of the Modern WorldIndian Givers: How the Indians of the Americas Transformed the WorldThe Secret History of the Mongol Queens, and The History of Money, among other acclaimed books. A specialist in tribal peoples, he was for many years a professor of anthropology at Macalester College in Minnesota and now divides his time between the United States and Mongolia.