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How did the idea of communicating with the dead become so popular in the 19th century?
A pair of sisters convinced people that they had a remarkable ability, and sparked an entire movement. But what made people so receptive to the idea of communicating with the dead? What still does today?
In this Backstory, Larry Potash looks at the causes of the movement, and the modern-day efforts to end it.
You can also listen to this story on the “Backstory with Larry Potash” podcast in the player below. Subscribe to Backstory on iTunes, Stitcher, Google Podcasts, Spotify, or wherever you listen to podcasts.