History of penicillin History of penicillin The history of penicillin follows a number of observations and discoveries of apparent evidence of antibiotic activity in molds before the modern isolation of the chemical penicillin in 1928. There are anecdotes about ancient societies using molds to treat infections, and in the following centuries many people observed the inhibition of bacterial growth by various molds. However, it is unknown if the species involved were "Penicillium" species or if the antimicrobial substances produced were penicillin. The Scottish physician Alexander Fleming was the first to suggest that a "Penicillium" mold must secrete an antibacterial substance, and the first
Valentine S. Keppel the grade school and high school board. He also served on the La Crosse County Board and was chairman of the county board. During World War I, Keppel served on the local draft board. From 1907 to 1909, Keppel served in the Wisconsin State Assembly. Then, from 1925 to 1933, Keppel served in the Wisconsin State Senate and was a Republican. Keppel died in Holmen, Wisconsin as a result of a stroke. Valentine S. Keppel Valentine S. "V.S." "Val" Keppel (February 21, 1865 – September 7, 1940) was an American farmer and politician. Born in La Crosse County, Wisconsin in