This book aims to bring to life the drama of a month in France in which the future of capitalism was in jeopardy. Ten million workers, occupying the factories and workplaces across the country, hoisting red flags and singing the Internationale, made clear their desire for a new society. They forced a powerful president to flee his country. They drew to their side wide layers of the middle class. Soldiers, sailors and police were ready to mutiny. The flame of the movement leapt across borders, inspiring workers and students in neighbouring Belgium, Britain, Germany, Spain and above all Italy.