A City of Earth and People
Near modern St. Louis stood Cahokia, the most important city of the Mississippian culture. At its peak in the 12th century, roughly 20,000 people lived there—more than in London at the same time. Its center was Monks Mound, a monumental earthwork rising about 100 feet.
An Urban World
Cahokia depended on agriculture, hunting, foraging, and long-distance trade. Its scale reveals that complex urban life was not imported from Europe; it developed independently in North America. The city had social classes, enslaved people, and practices including human sacrifice, influenced by societies farther south such as the Maya.
A Different American Beginning
Cahokia challenges the idea that North America before colonization consisted only of scattered villages. It was a densely organized society capable of mobilizing enormous labor to build monuments and sustain a large population. Its story places Indigenous urban achievement at the center of American history—not at its margins.
The surprising legacy is simple: one of North America’s greatest cities existed centuries before the United States, and its earthen skyline still survives in the landscape.