The structures and pottery found indicate a critical phase in the Mississippian Period around 1100-1200 AD, revealing insights into the Cahokia tribe's development.
Artifacts like precision-drilled shells and beads suggest a sophisticated society with a potential currency system, distinct from neighboring civilizations.
The Cahokia, unique from the Maya or Aztec, built a massive city with over 120 mounds, marking a significant indigenous civilization in North America.
Expert analysis considers deforestation causing oil degradation, leading to flooding, possibly a reason for the Cahokia tribe abandoning their city.
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