
Cahokia
Beginning around 1050, a settlement across the Mississippi from present-day St Louis grew explosively into a city of thousands, its inhabitants moving millions of cubic feet of earth by hand to build over a hundred mounds. Because Cahokians left no written records, everything known about the city comes from excavation, radiocarbon dating and soil analysis rather than testimony, leaving population estimates and the causes of its abandonment by 1350 genuinely disputed among archaeologists. Long misattributed to a vanished non-Native civilisation, the site is now recognised as ancestral heritage by multiple Indigenous nations and holds UNESCO World Heritage status.





