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The Loudon Possessions
A hysteria about nuns being possessed by the devil. -
Salem Witch Trails
During this mass hysteria a group of girls all had the same symptoms. -
The Great Fear
A hysteria that started right before the start of the french revolution. -
Culture Bound Symptons
Mass hysteria came about in specific cultures and/or geographic regions. -
Japenese-Americans Internment Camps
Happened during the duration of world war 2. -
An Upstate Roar
Students from a highschool in Le Roy, New York, all had the same symptoms, while propagating it to social media and news stations. -
The Military Malady
San Diego barracks almst 1000 soldiers complained of a cough and other symptoms. 375 were evacuated by ambulance.