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Knowledge Minute - The Hot Dog's Humble Beginnings

/ CBS Pittsburgh

First Lady Michelle Obama
First Lady Michelle Obama waves during a walk at Marbella's city center, southern Spain, on August 4, 2010. (Photo credit should read Jorge Guerrero/AFP/Getty Images)

Sausages have been around since ancient times, but it was in recent history that someone thought to put it on a bun. Dr Knowledge takes a bite out of history to bring you this "Knowledge Minute."

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First published on April 21, 2010 / 11:36 AM EDT

© 2010 CBS Broadcasting Inc. All Rights Reserved.

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