We hear about the age of discovery of hormones and antibiotics, from the 1930s to the 1950s. Russell Marker left Penn State to find a plant from which to synthesize progesterone, so we learn about the trials and tribulations of the Mexican firm Syntex. Carl Djerassi joined Syntex and invented norethindrone. We learn of more fungal- and bacterial-based antibiotics, from streptomycin to tetracyclines, vancomycin, and methicillin--and what MRSA is.Support the show Support my podcast at https://www.patreon.com/thehistoryofchemistry Tell me how your life relates to chemistry! E-mail me at steve@historyofchem.com Get my book, O Mg! How Chemistry Came to Be, from World Scientific Publishing, https://www.worldscientific.com/worldscibooks/10.1142/12670#t=aboutBook