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
Saint Valentine that in England no church was ever dedicated to him. There are many churches containing the name of Valentine in other countries such as Italy. A 5th- or 6th-century work called "Passio Marii et Marthae" made up a legend about Saint Valentine's Basilica being dedicated to Saint Valentine in Rome. A later "Passio" repeated the legend and added the adornment that Pope Julius I (357–352) had built the ancient basilica "S. Valentini extra Portam" on top of his sepulchre, in the Via Flaminia. This church was really named after a 4th-century tribune called Valentino, who donated the land on which