The Chicago History Museum presented authors, historians and “sexperts” in a three-part series that delved into Chicago’s part in shaping American sexual mores.

In this second installment, Jim Petersen talks about Playboy, the men’s magazine that helped propel the sexual revolution after it was first published in Chicago in 1953. From centerfolds to social clubs, from merchandise to the mansion, find out about the humble beginnings of the bunny business and its current status as one of the world’s best-known brands.

Audio from the series’ first installment is available here: Sex and the City: Sin in the Second City

Recorded Tuesday, April 14, 2009 at Chicago History Museum.