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300tube TED-Ed   2 October, 2017
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download youtube mp4 : How aspirin was discovered - Krishna Sudhir

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4000 years ago, the ancient Sumerians made a surprising discovery: if they scraped the bark off a particular kind of tree and ate it, their pain disappeared. Little did they know that what they’d found was destined to influence the future course of medicine. Krishna Sudhir traces the history of aspirin. 

Lesson by Krishna Sudhir, directed by Artrake Studio.

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