Dancing mania/St. John’s Dance/Drugs took Aachen, Germany by storm June 24 1374. That day, people freaked out dancing, foaming at the mouth and hallucinating, and kept going at it long after they fell to the ground.
The awesome dancing, according to Wikipedia, took Europe by storm for the next 650 years.
Truth: Germans are at their most trustworthy when they have crazy dances.
Happy Birthday Sedmunds
