Rome, 897, where Pope Stephen VI decides to settle an old score with his already dead rival, Pope Formosus, by

Governments and military agencies employed satire in propaganda to sway public opinion. Cartoons and posters used humor to mock enemies

The Dance of Death, or Danse Macabre, became a powerful artistic motif in the late medieval period. It depicted skeletons

In 1518, Strasbourg was struck by a strange event known as the Dancing Plague. Hundreds of people began dancing uncontrollably

In 1962, a contagious outbreak of uncontrollable laughter began in a girls’ school in Tanganyika (now Tanzania). The laughter spread