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For centuries people though cholera was spread with bad air but i believe it is caused by water
On 31 August, there was a cholera outbreak in London. The amount of deaths per day were countless. No one knew the cause of cholera
At that time there were 2 theories of cholera was either spread by bad air or physical contact. But that wasnt what John predicted.
As a result John marked all the pumps in Soho, London where the people died. He also marked the water pumps
In those days, people
John realised that most of the people who died out of cholera lived near water pumps
John managed to convinnce the council to remove all water pumps.
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