In 1200 AD, This Indian City on the Mississippi Was Larger Than London And On the Verge Of Starting an Advanced Civilization

Published: July 28, 2020, 6:25 a.m.

Many great Mesoamerican civilizations existed before and long after the arrival of Christopher Columbus: The Incans, Mayas, and Aztecs. But there was one civilization in North America you likely never have heard of that could have been more advanced...