September 28, 1928
1928-09-28 00:00 UTC
Held by The Museum. Not for sale.
Penicillin is noticed

Alexander Fleming returns to a contaminated petri dish and sees a ring of cleared bacteria.Source ↗
1928-09-28 00:00 UTC
Held by The Museum. Not for sale.

Alexander Fleming returns to a contaminated petri dish and sees a ring of cleared bacteria.Source ↗
Every minute within five minutes of this one is unclaimed.