31 dic 1881 anni - Robert Koch, a German physician described the bacterial colonies growing on potato slices
Descrizione:
 "in 1881, Robert Koch, a German physician described the bacterial colonies growing on potato slices (First ever solid medium)."  (from ncbi.nlm.nih.gov/pmc/articles/PMC3178936/) 
Aggiunto al nastro di tempo:
Data: