Henry Charles Beck (June 4, 1902 – September 18, 1974), known as Harry Beck, was an English engineering draftsman best known for creating the present London Underground Tube map in 1931. Beck drew up the diagram in his spare time while working as an engineering draftsman at the London Underground Signals Office. London Underground was initially skeptical […]

John Snow (1813–1858) is revered as a founding father of two medical disciplines. Anesthesiologists remember him as the physician who first made anesthesia scientific by showing how the human body responded to different doses of anesthetic drugs, and how anesthesia affected the human physiology. In addition, Snow the practicing anesthetist is widely known for the […]

Description and Significance Vibrio cholerae is a “comma” shaped Gram-negative bacteria with a single, polar flagellum for movement. There are numerous strains of V. cholerae, some of which are pathogenic and some of which are not. [SOURCE] The bacteria infects the intestine and increases mucous production causing diarrhea and vomiting which result in extreme dehydration […]

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 […]

Personal Note: As many of you know, I was a History major as an undergraduate in college. I started in Computer Science (thus the minor degree), but began to love history because of the influence of my Freshman History Survey course and its amazing teacher, Dr. Bruce E. Seely. His focus was history of technology. […]