John Dunn, FBA, is emeritus professor of political theory at King’s College, University of Cambridge. His work on revolution began in 1972 with the publication of his landmark volume, Modern Revolutions: An Introduction to the Analysis of a Political Phenomenon. A second edition was published in 1989, and the volume has since been translated into several foreign languages. Alongside revolution, Dunn’s thought has examined questions of regime collapse, reconstruction, the political trajectories of modern states, and the emergence and significance of democracy. His work lies at the intersection of history, political theory, and sociology. In the interview, Dunn offers a categorization of revolution as a distinctly bounded historical phenomenon that has not persisted into the twenty-first century. “The Epoch of Revolution,” he argues, begins with 1789 and had definitively ended by 1989. After the Epoch of Revolution, Dunn argues, we now confront a more enduring and generic phenomenon: regime collapse.