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Illinois’ Hidden History: Cahokia, Deadly Tornadoes and Earthquake Risk
Explore Illinois’ hidden history and natural hazards, from the ancient city of Cahokia to deadly tornadoes, extreme heat and earthquake risks.
Eight miles east of St. Louis lies Cahokia, a UNESCO World Heritage Site preserving the remains of a city that was larger than London around 1100 CE. Its central mound covers more ground than the Great Pyramid of Giza, yet the city’s original name and the reasons for its abandonment remain uncertain.
On March 18, 1925, the deadliest tornado in American history killed approximately 600 people in Illinois, including 33 children at a school in De Soto…
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