Crises are not only punctual moments, chapters of history, which we include here and there in the overall narrative. Crises can innervate and periodize this narrative. They constitute a privileged point of view, because they allow us to articulate it in simple, effective, easily comprehensible moments and, a fundamental fact for the formative processes, they open to the present world and to the problems we live in. They allow us, therefore, to talk about the past, to study it and - without present-day forcing - to arrive at the elaboration of new points of view, to observe the questions of today. The dossier is closed by two tools specifically designed for teachers. The first is a glossary to which Marida Brignani, Tito Menzani, Lorena Mussini and Giulia Ricci have patiently and acutely awaited. It will allow teachers and students to find effective and rapid explanations of vocabulary, that of economic history, often alien to the current training of professors. The second will certa