In the summer of 1518, a mysterious illness struck the residents of Strasbourg, a city in what is now France. Women and men began dancing uncontrollably, some for hours or even days on end. The bizarre phenomenon quickly spread throughout the city, with hundreds of people taking to the streets in a frenzied dance. But what caused this outbreak of dancing, and why did it last so long? In this episode, we delve into the strange and fascinating history of the dancing plague of 1518, exploring the various theories behind its origins and its lasting impact on medicine, culture, and folklore.