The dancing plague of 1518, or dance epidemic of 1518 (French: Épidémie dansante de 1518; German: Straßburger Tanzwut), was a case of dancing mania that occurred in Strasbourg, Alsace (modern-day France), in the Holy Roman Empire from July 1518 to September 1518. Somewhere between 50 and 400 people took to dancing for weeks. There are many...