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may 30, 1854 - Cholera & John Snow

Description:

John Snow got authorities to remove the pump handle at the Broad Street pump in Soho, the cause of cholera outbreak at the time. 60% of people who drank water from this pump had cholera. Led Snow to believe that cholera was cause by dirty water and not miasma.

Added to timeline:

Date:

may 30, 1854
Now
~ 171 years ago

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