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An outbreak of dancing mania, in which crowds of people danced themselves to exhaustion, began in Aachen (in present-day Germany) before spreading to other parts of Europe.

Historical image related to An outbreak of dancing mania, in which crowds of people danced themselves to exhaustion, began in Aachen (in present-day Germany) before spreading to other parts of Europe. from June 24, 1374

Dancing mania

Medieval social phenomena

Dancing mania was a phenomenon that may have had biological causes, which occurred primarily in mainland Europe between the 14th and 17th centuries. It involved groups of people dancing erratically, sometimes thousands at a time. The mania affected adults and children who danced…
Source: Wikipedia (CC BY-SA)

Free Imperial City of Aachen

Free Imperial City of the Holy Roman Empire (1166–1801)

The Free Imperial City of Aachen, also known in English by its French name of Aix-la-Chapelle and today known simply as Aachen, was a Free Imperial City and spa of the Holy Roman Empire west of Cologne and southeast of the Low Countries, in the Lower Rhenish–Westphalian Circle.…
Source: Wikipedia (CC BY-SA)