As Matt Weiner's masterpiece charges ever deeper into the culture-transforming crucible of the 1960s, we find ourselves fascinated by personal histories most of all, and the intersection of larger society with intimate lives. Vietnam and urban decay helped make Joan's (Christina Hendricks) baby, the drug culture might kill Midge (Rosemarie DeWitt), feminism both enriches and complicates Peggy's (Elisabeth Moss) life, the ceaseless pace of change (not to mention the suburbs in general) drive Betty (January Jones) insane, while the ultimately unknowable Don Draper (Jon Hamm) floats above it all, picking and choosing the bits of zeitgeist that serve him best.