The diverse people of the Hopi, whose name means the peaceful ones, are today united on the Hopi Reservation, which is composed of 12 villages on more than 2,500 square miles in northeastern Arizona. In fact, the village of Orayvi is considered the oldest continuously inhabited settlement in the United States, dating back more than a millennium. Often referred to as a corn culture, the Hopis have developed dry-farming techniques that have sustained them in the harsh, arid landscape, where annual precipitation is often only 12 inches or less. The Hopi people are hardworking and spiritual, and...