For over a century, Thomas Edison has been considered the father of recorded sound. But in a new discovery, researchers say they have found a recording of the human voice, made by a little-known Frenchman named douard-Lon Scott de Martinville, that predates Edison's invention of the phonograph by almost twenty years.

"This is a historic find, the earliest known recording of sound," says Samuel Brylawski, the former head of the recorded-sound division of the Library of Congress.

It's the BPP's Most.

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