The Festival of Humanity begins this Saturday, September 10, 2022 in Brétigny-sur-Orge in Essonne. This major popular, political and musical unmissable event for the start of the new school year in France is taking place this year in the outer suburbs due to the works for the 2024 Olympic Games at La Courneuve. Jean-Numa Ducange, professor of contemporary history at the University of Rouen and at the Institut Universitaire de France. Co-director of the book ” Global history of socialisms, 19th-21st centuryekey ” (PUF) is RFI’s guest.