John Snow was an English physician, 👨‍⚕️ best known for finding the source of a cholera outbreak in Soho,1854. By putting all known cholera cases on a map, he found the source of all troubles – a contaminated water pump. 💦 Why was it such a big deal? This discovery not only led to shutting down the pump, but also worked in favor of the budding germ theory of disease. 🦠🦠🦠 Even though Snow himself didn’t know that at the time, he contributed to the birth of epidemiology. 🔬

The third episode of the newest Victoria season talks about the Snow’s cholera investigation, so check it out! (the series doesn’t always stick well to the facts, though, you’ve been warned) 😀