At the turn of the last millennium, a powerful Native American civilization emerged and flourished in the American Midwest. By A.D. 1050 the population of its capital city, Cahokia, was larger than that of London. Without the use of the wheel, beasts of burden, or metallurgy, its technology was of the Stone Age, yet its culture fostered widespread commerce, refined artistic expression, and monumental architecture. The model for this urbane world was nothing less than the cosmos itself. The climax of their ritual center was a four-tiered pyramid covering fourteen acre rising a hundred feet into the sky—the tallest structure in the United States until 1867. This beautifully illustrated book traces the history of this six-square-mile area in the central Mississippi Valley from the Big Bang to the present. Chappell seeks to answer fundamental questions about this unique, yet still relatively unknown space, which was designated a UNESCO World Heritage Site in 1982. How did this