Stuff You Missed in History Class

Join Holly and Tracy as they bring you the greatest and strangest Stuff You Missed In History Class in this podcast by iHeartRadio.


Thomas Midgley Jr.’s Deadly Inventions

Midgley was a deeply respected researcher and chemist who received multiple awards. He also developed both leaded gas and freon, two substances banned around the world now because they are very bad for the environment and public health.


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  • U.S. Department of Energy. “Fact #841: October 6, 2014 Vehicles per Thousand People: U.S. vs. Other World Regions.”

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 2022-08-24  43m