English surgeon Joseph Lister was born April 5, 1827.

He would go on to revolutionize basic medical hygiene and our understanding of germs.

Sir Joseph Lister (1827-1912), Spray
Part of the Royal Society series issued in 2010
Designed by Hat-Trick design company

Joseph Lister was a prominent British surgeon and medical scientist who established the study of antisepsis. Applying Louis Pasteur’s germ theory of fermentation on wound putrefaction, he promoted the idea of sterilization in surgery using carbolic acid (phenol) as an antiseptic. His method reduced the incidence of wound sepsis and gangrene, which, in turn, reduced the need for amputation. By showing how germs could be prevented from entering the wound, Lister increased the safety of surgical operations and laid the foundations for all subsequent advances in the field.
Michaleas SN, Laios K, Charalabopoulos A, Samonis G, Karamanou M. Joseph Lister (1827-1912): A Pioneer of Antiseptic Surgery. Cureus. 2022 Dec 21;14(12):e32777. doi: 10.7759/cureus.32777. PMID: 36686094; PMCID: PMC9854334.
The link above is an excellent and fascinating paper on Lister and his work. Worth taking the time to read. It includes a number of photos and a bibliography.