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dec 31, 1881 - Robert Koch, a German physician described the bacterial colonies growing on potato slices

Description:

"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/)

Added to timeline:

25 Nov 2019
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Date:

dec 31, 1881
Now
~ 144 years ago