“You know nothing, John Snow.”
The Game of Thrones reference might have been a good enough to visit the John Snow public house at 39 Broadwick St in Soho but we had other motivations.
In 1854 there was a cholera outbreak that was centered in this neighborhood. The physician John Snow traced the source of the outbreak in Soho to a communal water pump that used to be located near the pub.
With Snow’s discovery of the source of the cholera outbreak came the advent of modern epidemiology. Snow’s work led to improvements in the sewer and water systems around the world that greatly improved public health. It was a discovery that changed the world.