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8 magg 1947 anni - Selman Waksman discovers effective treatment for plague

Descrizione:

streptomycin; 600 years after 1st plague outbreak

Aggiunto al nastro di tempo:

AP Modern European History

29 ott 2018

0

0

723

Data:

8 magg 1947 anni

Adesso

~ 78 years ago

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