Sex and gender norms in marriage: Comparing expert advice in socialist Czechoslovakia and Hungary between the 1950s and 1980s.

First, we argue that sexuality was central to socialist modernization: Sex and gender were reformulated whenever the socialist project was being revised. Expertise was crucial in these reformulations, which harnessed people's support for the changing regimes. Moreover, the role of the expert in society grew over time, leading to ever expanding and diversified fields of expertise.