In this latest episode of In Theory, Disha Karnad Jani interviews Robert Darnton, Professor Emeritus and University Librarian Emeritus at Harvard University, about his recent book, The Revolutionary Temper: Paris, 1748-1789 (W. W. Norton, 2024), also published in French translation: L'humeur révolutionnaire: Paris, 1748-1789 (trans. Hélène Borraz, Gallimard, 2024). Darnton traces how the antecedents to revolution circulated among the Parisian public in the decades before the storming of the Bastille, through their everyday oppositions to the rising price of bread, the overreaches of the monarchy, and the policing of poor neighborhoods. Through their growing sense that the powerful in their society were not governing as they should, ordinary people in Paris began to acquire a shared feeling of discontent, and showed this through many forms of public performance and protest. Darnton tracks this as the development of a "revolutionary temper" in Paris, one which made the population ready to change their world in a matter of decades.