33
/es/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
November 30, 2025
3117572
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30 abr 1799 año - Humphrey Davy
Descripción:
discovers pain killing probities of NO2 it was used heavily in dentistry
Añadido al timeline:
GCSE AQA Medicine through time
By
isaac
5 jun 2019
0
0
2491
fecha:
30 abr 1799 año
Ahora mismo
~ 226 years ago
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