Although he had no formal medical education, the epidemiology of cholera intrigued Reverend Whitehead. So who was this religious leader and how did he get interested in cholera? [SOURCE] REVEREND WHITEHEAD Reverend Henry Whitehead (1825-96), shown here in 1884 at age 59, was born on September 22,1825 in the seaside town of Ramsgate (middle center […]

It is 1854 Victorian London and it stinks. Scavengers lived in a world of excrement and death. Unorganized, independent scavengers referred to as bone-pickers, rag-gathers, pure-finders, dredgermen, mud-larks, sewer-hunters, dustmen, night-soil men, bunters, toshers and shoreman spread out in the London nights in search of organic materials to use to make money or for trade. “Pure” […]

I have now finished reading Steven B. Johnson’s riveting book, The Ghost Map: The Story of London’s Most Terrifying Epidemic–and How It Changed Science, Cities, and the Modern World. This has been a labor of love for me since I have known the story (or at least some of it), about the 1854 cholera epidemic in London, […]

One of my favorite data visualizations of all time is John Snow’s “Ghost Map” that helped identify the cause of the 1854 London cholera epidemic. I am currently reading Steven Johnson’s exciting book on this tragic chapter in London’s history. The book is titled The Ghost Map: The Story of London’s Most Terrifying Epidemic – […]