In September 1928, Scottish bacteriologist Alexander Fleming returned from vacation to his laboratory at St Mary Hospital in London. Before leaving, he had stacked Petri dishes containing Staphylococcus bacteria on a laboratory bench.
Upon his return, Fleming noticed that one dish had become contaminated with a common mold. Around this fungal growth, the bacterial colonies had mysteriously dissolved. The fungus was later identified as Penicillium notatum, which produced a substance capable of destroying deadly bacteria.
Fleming named the active substance penicillin, though he struggled to isolate and produce it in large quantities. More than a decade later, scientists Howard Florey and Ernst Chain at Oxford University successfully developed methods to purify the drug.
By World War II, mass production began, transforming penicillin into the world first miracle antibiotic. It prevented countless amputations, treated lethal infections, and reshaped modern medicine forever.
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Disclaimer: This video is for informational and educational purposes. Historical facts are drawn from public records and images are illustrative.
