In 1861, Louis Pasteur published his groundbreaking work on Germ Theory, fundamentally altering the course of medicine and biology.

Pasteur’s research demonstrated that microorganisms, or germs, were responsible for causing many diseases, challenging the long–standing belief in spontaneous generation. This discovery laid the foundation for understanding how infections spread, leading to the development of sterilization, vaccination, and pasteurization techniques.

Pasteur’s germ theory also revolutionized surgical practices by promoting antiseptic procedures, significantly reducing infection rates and mortality in hospitals. His work not only advanced public health but also paved the way for the development of antibiotics and modern microbiology, transforming medical science and saving countless lives.