Lamin Sanneh, a naturalized U.S. citizen from Gambia and the scion of an ancient African royal house, was educated on four continents. He is Professor of History and World Christianity at Yale University, and chair of its Council on African Studies. His books include Whose Religion is Christianity?: The Gospel Beyond the West and The Changing Face of Christianity: Africa, the West, and the World (coedited with Joel A. Carpenter).