Penicillin was discovered in 1928 by Scottish scientist Alexander Fleming. People began using it to treat infections in 1942. There are several enhanced penicillin families which are effective against additional bacteria; these include the antistaphylococcal penicillins, aminopenicillins and the antipseudomonal penicillins. They are derived from "Penicillium" fungi. The term "penicillin" is often used generically to refer to benzylpenicillin (penicillin G, the original penicillin found in 1928), procaine benzylpenicillin (procaine penicillin), benzathine benzylpenicillin (benzathine penicillin), and phenoxymethylpenicillin (penicillin V). Procaine penicillin and benzathine penicillin have the same antibacterial activity as benzylpenicillin but act for a longer period of time. Phenoxymethylpenicillin is less
A. S. Valentine A. S. Valentine A. S. Valentine was an early professional football player for the Allegheny Athletic Association. He served as the team's quarterback in 1890 and 1891. However, he jumped to the rival Pittsburgh Athletic Club in 1892. Valentine played for Pittsburgh in their first two games. Then, without warning, he suddenly jumped back to the Allegheny team. Some Pittsburgh A.C. members accused Allegheny of enticing him back, while others charged he had all along been a spy for them. During Allegheny's two games against the Pittsburgh A.C. that year, Valentine played as a left halfback. In 1891, he played