In this neoliberal era, some scholars have noted an ascendant individualism and the decline of traditional solidarities. Yet in many settings, collective identities—based in class, race, nation, faith, sexuality, etc.—retain enormous significance for both defenders and critics of capitalism. These identities are often rooted in a sense of shared history. With this in mind, this year’s colloquium will explore collective identities and their relation to historical memory. We ask, what kinds of solidarities have been forged by working people, and how have these solidarities been challenged and reconfigured? How have actors across the political spectrum deployed collective identities and linked them to ideas about the past? How do acts of remembering and forgetting shape working people’s struggles? And what can the practice of history contribute to today’s progressive social movements?