R2319th

**Louis Pasteur’s Germ Theory **  //__Theme #23 __////: The influence of sanitation and health care practices on society; food supply, diet, famine, disease, and their impact. //   In 1854, Louis Pasteur, a French chemist, developed his theory on germs. This theory was based off of his work on studying fermentation at the request of local brewers. Using his microscope to monitor the fermentation, Pasteur saw that fermentation was caused by the growth of living organisms. This idea revolutionized the way that diseases were treated because it showed that these little microorganisms and the harmful diseases of the time period were connected. As time went on, these microbes were analyzed and actually were able to be treated through vaccinations. Although Pasteur only formulated that living organisms caused the fermentation in plants, animals, and food, he truly sparked the bacterial revolution that would lead to a healthier, safer European lifestyle.   McKay, John P., John Buckler, and Bennett D. Hill. __A History of Western society__. 7th ed. Boston: Houghton Mifflin, 2003. 
 * 1854 **
 * __MLA __**