📜 England's Broad Street Pump - Part 4 - Extra History John Snow's report on the causes of cholera provided yet more evidence of the dangers of filthy cities. Cities had always been unhealthy places ...
📜 England's Broad Street Pump - Part 2 - Extra History John Snow's single case study was not enough to convince the medical community that cholera was spread through the water, but he did not give up ...
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