Strasbourg Dancing Plague (1518)

The Dancing Plague of 1518 in Strasbourg, France, was a case of dancing mania where numerous people danced for days without rest. It began when a woman, Frau Troffea, started dancing fervently in the street, and within a week, 34 others joined. The phenomenon resulted in around 400 dancers, most of whom eventually died from heart attacks, strokes, or exhaustion. The reason for the dancing and whether it was voluntary remain unclear.