History: Cholera in London Gabriel Paulone takes you through mid-19th century London's sanitation problems during the Industrial Revolution, when rapid urban growth led to overflowing cesspools, contaminated rivers, and outbreaks of cholera due to sewage mixing with drinking water. He describes how scientists and engineers discovered where the problem was coming from and how they led massive city projects and innovations that are still in use today. Download "The Daily Moth" app to see more of G