John Snow started mapping incidences of the disease in Soho, and noticed clusters around the Broad Street water pump. Snow disabled the pump (a recently restored replica of which stands outside ...

And if you take a walk in London’s Soho today, you’ll see a memorial to Snow in the form of a black water pump, and… perhaps the highest honour of all – a pub called The John Snow.

John Snow is often called the founder of epidemiology ... This led him to conclude that a water pump on Broad Street was the source of the contagion. He persuaded the local council to remove ...