On July 14, 1518, a woman stepped into a street in Strasbourg and began to dance — and she did not stop. Within weeks, dozens and possibly hundreds of people were caught in the same strange affliction, dancing for hours or days despite exhaustion, injury, and distress. Strasbourg's physicians rejected a supernatural explanation and prescribed more dancing, leading the city to build stages, hire musicians, and encourage the afflicted to keep moving. This episode follows what the contemporary records actually establish, why popular explanations such as ergot poisoning struggle to fit the evidence, and why mass psychogenic illness remains the leading — but unprovable — explanation. No consensus explanation has emerged that can fully account for why the outbreak began, spread, and then disappeared. ─────────────────────────────── IN THIS EPISODE— The woman whose dancing began the Strasbourg outbreak— Why the city built stages and hired musicians as a medical treatment— Ergot poisoning, religious ritual, and mass psychogenic illness— What the surviving records can — and cannot — tell us SOURCESJohn Waller, Endeavour, 2008Contemporary Strasbourg chronicles and municipal records, 1518 ─────────────────────────────── Narration in this episode is AI-assisted. Research, writing, and editorial decisions are human. Reality Is Strange — real phenomena, verified, and stranger than they should be.

The Dancing Plague of 1518: Why Strasbourg Couldn't Stop

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