As archaeologist Timothy Pauketat's cautious but mesmerizing new book, "Cahokia: Ancient America's Great City on the Mississippi," makes clear, Cahokia -- the greatest Native American city north of Mexico -- definitely belongs to human history. (It is not "historical," in the strict sense, because the Cahokians left no written records.) At its peak in the 12th century, this settlement along the Mississippi River bottomland of western Illinois, a few miles east of modern-day St. Louis, was probably larger than London, and held economic, cultural and religious sway over a vast swath of the American heartland. Featuring a man-made central plaza covering 50 acres and the third-largest pyramid in the New World (the 100-foot-tall "Monks Mound"), Cahokia was home to at least 20,000 people. If that doesn't sound impressive from a 21st-century perspective, consider that the next city on United States territory to attain that size would be Philadelphia, some 600 years later.

very interesting read thank you for finding it and sharing.

Thank you.