events
A sudden outbreak of St. John's Dance causes people in the streets of Aachen, Germany, to experience hallucinations and begin to jump and twitch uncontrollably until they collapse from exhaustion.
Related Wikipedia articles
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)
Aachen
City in North Rhine-Westphalia, Germany
Aachen is the 13th-largest city in North Rhine-Westphalia and the 27th-largest city of Germany, with around 261,000 inhabitants.Source: Wikipedia (CC BY-SA)
Hallucination
Perception that only seems real
A hallucination is a perception in the absence of an external stimulus that has the compelling sense of reality. They are distinguishable from several related phenomena, such as dreaming, which does not involve wakefulness; pseudohallucination, which does not mimic real…Source: Wikipedia (CC BY-SA)