Credulity

From the 1830s to the Civil War, Americans could be found putting each other into trances for fun and profit in parlors, on stage, and in medical consulting rooms. They were performing mesmerism. Surprisingly central to literature and culture of the period, mesmerism embraced a variety of phenomena, including mind control, spirit travel, and clairvoyance. Although it had been debunked by Benjamin Franklin in late eighteenth-century France, the practice nonetheless enjoyed a decades-long resurgen