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

Descrizione:

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

Aggiunto al nastro di tempo:

TL: ST

ByLeslye Vasquez
29 gen 2020

Data:

16 feb 1800 anni
Adesso
~ 224 years ago
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