First Aired: September 6th, 2013
Status: Continuing
Genre: Animation, Documentary
Network: YouTube
Summary: Extra History is an educational series of Extra Credits about historical moments. From the Punic Wars to the The Brothers Gracchi, the series has endless stories to tell.
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# of Episodes: 583
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Season 71
Episode 2: An End to Pain
Air Date: September 26th, 2019
Summary: The invention of anesthesia changed dentistry forever, but the implementation was not painless, ironically. Between nitrous oxide, ether, and even cocaine, people tried a lot of different methods to try and make the dentist visit an easier option.
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