c. 1050–1350 CE
Narrator: Across the Mississippi from where Saint Louis stands today, in the floodplain near modern Collinsville, Illinois, there rose a city called Cahokia. And it rose fast. Around ten fifty CE, archaeologists see what some of them call the Big Bang, a sudden, planned transformation, as if someone drew up the whole city at once and set thousands of people to building it. At its heart stands Monks Mound, the largest earthwork in all the Americas, about a hundred feet tall, with a base covering fourteen acres. Think about how it was made. Roughly eight hundred fourteen thousand cubic yards of earth, dug with wooden tools, packed into baskets, and carried up on human backs, one load at a time. At its foot spread the Grand Plaza, a vast leveled public space. Nearby stood a ring of tall red cedar posts the archaeologists nicknamed Woodhenge, a calendar that tracked the sun through the year. And the plaza was alive. Crowds, reportedly thousands, gathered to watch a game called chunkey, where a carved stone disk was rolled across the ground and players hurled spears to land where it would stop. People bet on it, fiercely. But Cahokia had a darker ceremonial life too. In a feature called Mound Seventy-Two, excavators found a man laid out on a blanket of more than twenty thousand shell beads, and buried near him, groups of young people who appear to have been sacrificed, retainers sent to accompany the powerful into death. How many lived here at its peak, accounts differ, with estimates ranging from around ten thousand to as high as forty thousand. Either way, this was for centuries the largest city north of Mexico, bigger in its day than London. And then, over the thirteen hundreds, Cahokia emptied. The reasons are still argued, political strain, environmental pressure, drought, flooding. By around thirteen fifty, the great city by the river stood silent, its mounds slowly greening over. Hold that silence, because it matters enormously for the end of our story. Meanwhile, far to the northeast, a different kind of power was being built, not out of earth, but out of words.