When concerns about being accidentally buried alive swept Europe and North America in the 1800s, inventors (and showmen) came up with coffins that could let a living person escape -- or at least alert someone to come dig them up. Learn more in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/science-vs-myth/afterlife/premature-burial-safety-coffins.htm

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