In London in the summer of 1858, a Great Stink settled over the city. The sewage from its growing population was baking in the streets -- and infiltrating the city's water supply. Learn how this smelly situation led to some incredible sewer engineering still in use today (plus a change in the understanding of how infection works) in this episode of BrainStuff, based on this article: https://history.howstuffworks.com/historical-events/ridiculous-history-the-great-stink-london.htm