When Edward Jenner created the first vaccine against smallpox, he had no idea what caused smallpox. The scientific appreciation of "germ theory" was just the start of the process of understanding microbiology. The History Guy recalls the forgotten history of the scientific study of "germs," and how early germ theory actually delayed the scientific discovery of viruses. This is original content based on research by The History Guy. Images in the Public Domain are carefully selected and provide illustration. As very few images of the actual event are available in the Public Domain, images of similar objects and events are used for illustration. You can purchase the skull and crossbones bow tie worn in this episode at The Tie Bar: https://www.thetiebar.com/?utm_campaign=BowtieLove&utm_medium=YouTube&utm_source=LanceGeiger All events are portrayed in historical context and for educational purposes. No images or content are primarily intended to shock and disgust. Those who do not learn from history are doomed to repeat it. Non censuram. Find The History Guy at: Facebook: https://www.facebook.com/TheHistoryGuyYT/ Patreon: https://www.patreon.com/TheHistoryGuy The History Guy: History Deserves to Be Remembered is the place to find short snippets of forgotten history from five to fifteen minutes long. If you like history too, this is the channel for you. Subscribe for more forgotten history: https://www.youtube.com/channel/UC4sEmXUuWIFlxRIFBRV6VXQ?sub_confirmation=1. Awesome The History Guy merchandise is available at: https://teespring.com/stores/the-history-guy Script by THG #science #thehistoryguy #history