Drugs involved in 16th Century Dance Epidemic ?!

Dance Epidemic (or The Dancing Plague) in 16. Century was a case of dancing mania that occurred in Strasbourg, Alsace (at that time part of the Holy Roman Empire) in July 1518.  Around 400 people took to dancing for days without rest and over the period of about one month, some of those affected collapsed or even died of heart attack, stroke or exhaustion.



The outbreak began in July 1518 when a woman, Mrs. Troffea, began to dance fervently in a street in Strasbourg. This lasted somewhere between four and six days. Within a week, 34 others had joined, and within a month, there were around 400 dancers, predominantly female.. One report indicates that for a period, the plague killed around 15 people per day.



Historical documents, including “physician notes, cathedral sermons, local and regional chronicles, and even notes issued by the Strasbourg city council” are clear that the victims danced. It is not known why these people danced. As the dancing plague worsened, concerned nobles sought the advice of local physicians, who ruled out astrological and supernatural causes, instead announcing that the plague was a “natural disease” caused by “hot blood”. However, instead of prescribing bleeding, authorities encouraged more dancing in part by opening two guildhalls and a grain market and even constructing a wooden stage. The authorities did this because they believed that the dancers would recover only if they danced continuously night and day. To increase the effectiveness of the cure, authorities even paid for musicians to keep the afflicted moving.

Historian John Waller stated that a marathon runner could not have lasted the intense workout that these men and women did hundreds of years ago.

Modern theories include food-poisoning caused by the toxic and psychoactive chemical products of ergot fungi, which grows commonly on grains in the wheat family (such as rye). Ergotamine is the main psychoactive product of ergot fungi; it is structurally related to the recreational drug Lysergic Acid Diethylamide (LSD-25) and is the substance from which LSD-25 was originally synthesized.


The same fungus has also been implicated in other major historical anomalies, including the Salem witch trials.  Waller speculates that the dancing was “stress-induced psychosis” on a mass level in the region where the people danced was riddled with starvation and disease and the inhabitants tended to be superstitious. Seven other cases of dancing plague were reported in the same region during the medieval era.





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