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, Texas Texas. In July 2011 the USPS announced that the post office may close. Valentine is home to, as one politician puts it, "the greatest ever West Texas Valentine's Day celebration." Hosted by the Big Bend Brewing Company of Alpine, Texas, as many as 1,000 people invade Valentine on Valentine's Day from points as close as Valentine itself, Marfa, and Alpine, to far away places such as Chicago and Cleveland. In 2014, the west Texas brewery served free cups of beer while Gary P. Nunn played live on stage, under the moonlit night and stars. On August 16, 1931, a magnitude