In this course, Professor Stephen Rachman (Michigan State University) looks at the outbreak of cholera in 19th century England, focusing in particular on the involvement of John Snow. In the first module, we take a look at Snow’s career, specifically focusing on his developing interest in cholera. In the second module, we look at the 19th century debate surrounding the nature of epidemic disease, before in the third module turning to look at Snow’s career in anaesthesia, in particular his experimentation with chloroform. In the fourth module, we trace the evolution of Snow’s theory about cholera, then in the fifth module, we focus in on the Broad Street Cholera Outbreak to assess its significance in shaping Snow’s theory. Finally, in the sixth module, we consider the myths that have developed around Snow, and why these need to be challenged.