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30 apr 1799 anni - Humphrey Davy

Descrizione:

discovers pain killing probities of NO2 it was used heavily in dentistry

Aggiunto al nastro di tempo:

GCSE AQA Medicine through time

5 giu 2019

0

0

2329

Data:

30 apr 1799 anni

Adesso

~ 226 years ago

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