Theory as History, which was awarded the Deutscher Memorial Prize in 2011, collects together several of Jairus Banaji’s essays published over the course of 30 years. This symposium comprises four essays engaging with different aspects of the powerful and provocative contributions in Theory as History, as well as an essay in response by Banaji. The Editorial Introduction sketches elements of Banaji’s work and highlights some of the main arguments advanced in the symposium.