While his namesake lives on in Listerine mouthwash, Joseph Lister didn't set out in life to provide the world with an antiseptic mouthwash.  However, what he did provide is antiseptic all the same and has saved countless lives. How did a Scottish surgeon revolutionize medical practice, save lives, aid in the development of the Band-Aid, and all-in-all give us common sense, life-saving, wound care? Find out in this episode of When Science Makes History.