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
The Valentine and Textile" exhibit shows vintage clothes. The Valentine has several rotating exhibitions that include photographs, clothes and textiles and historical based exhibits that impacted Richmond in a significant way. The Valentine The Valentine is a museum in Richmond, Virginia dedicated to the history of the city. Founded by Mann S. Valentine II 1898, it was the first museum in Richmond. The Valentine offers exhibitions that focus on "American urban and social history, costumes and textiles, decorative arts and architecture." The Valentine also includes the 1812 neoclassical Wickham House, a National Historical Landmark. In 2014, the Valentine completed a $4.1 million