Liberated, licentious, or merely liberal, the sexual freedoms of Germany's Weimar Republic have become legendary. The home of the world's first gay rights movement, the republic embodied a progressive, secular vision of sexual liberation. Immortalized - however misleadingly - in Christopher Isherwood's Berlin Stories and the musical Cabaret, Weimar's freedoms have become a touchstone for the politics of sexual emancipation. Yet, as Laurie...