7 Incredible Mass Hysteria Events
By Jon Mayer
![The Dancing Plague of 1518 The Dancing Plague of 1518](https://images2.minutemediacdn.com/image/upload/c_crop,w_946,h_532,x_90,y_0/c_fill,w_720,ar_16:9,f_auto,q_auto,g_auto/images/voltaxMediaLibrary/mmsport/mentalfloss/01ge0c4tvdpn5bnv4sfa.jpg)
From the Dancing Plague of 1518 to the Tanganyika Laughter Epidemic, unusual human behavior can't always be easily explained.
In this episode of The List Show, Mental Floss editor-in-chief Erin McCarthy shares seven unbelievable events of mass hysteria from history.
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