This article reflects on the difficulty that many students have in appreciating that religions change over time. It describes an assignment that can be used to teach this important religious literacy skill. The assignment focuses on changing norms on courtship, marriage, and family formation in Jewish communities at two different times and two different places. Students reflect on norms in the Pale of Settlement of Imperial Russia at the turn-of-the century using the film version of the musical "Fiddler on the Roof." They then view a documentary about the making and reception of the musical that centers the social movements of 1960s America, and they also read secondary literature on changing marriage norms in turn-of-the century Jewish communities in Eastern Europe and in 20th century Jewish communities in America. The assignment turns on concepts of tradition and innovation, showing how often innovation plays a role in things deemed "traditional".