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30 Apr 1854 Jahr - John Snow solves cholera outbreak
Beschreibung:
removing broad street pump supplying water
Zugefügt zum Band der Zeit:
Diseases that challenged the scientific community
By
Erica Nguyen
14 Dez 2018
1
0
613
Datum:
30 Apr 1854 Jahr
Jetzt
~ 171 years ago
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