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16 feb 1800 año - NO2 Discovered as Gas Anaesthetic But NOT Yet Used

Descripción:

Well this probably would have helped a lot of dentists in history to not be notorious for pain.

Añadido al timeline:

TL: ST

ByLeslye Vasquez
29 ene 2020

fecha:

16 feb 1800 año
Ahora mismo
~ 224 years ago
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