According to an oft- repeated tradition, eighteen peasants, some of whose names are still preserved, are said to have disturbed divine service on Christmas Eve by dancing and brawling in the churchyard, whereupon the priest, Ruprecht, inflicted a curse upon them, that they should dance and scream for a whole year without ceasing.

This curse is stated to have been completely fulfilled, so that the unfortunate sufferers at length sank knee-deep into the earth, and remained the whole time without nourishment, until they were finally released by the intercession of two pious bishops.

It is said that, upon this, they fell into a deep sleep, which lasted three days, and that four of them died; the rest continuing to suffer all their lives from a trembling of their limbs.

It is not worth while to separate what may have been true, and what the addition of crafty priests, in this strangely distorted story.

It is sufficient that it was believed, and related with astonishment and horror, throughout the Middle Ages; so that when there was any exciting cause for this delirious raving and wild rage for dancing, it failed not to produce its effects upon men whose thoughts were given up to a belief in wonders and apparitions.
This disposition of mind, altogether so peculiar to the Middle Ages, and which, happily for mankind, has yielded to an improved state of civilisation and the diffusion of popular instruction, accounts for the origin and long duration of this extraordinary mental disorder.