International audienceIndustrial cities around Lyons, France, came to life during and after World War I. They grow with big plants and factories and let their agricultural background far behind. People coming from abroad (Italy, Spain, Russia, Armenia, North Africa) settled there to live their life of immigrants. That was the story of Vaulx-en-Velin whose motto was "Liberty, Equality, Fraternity and Solidarity".Les villes de la ceinture lyonnaise, symbole du mal-être des banlieues, se sont construites sur le formidable essor industriel consécutif à la Première Guerre mondiale. Une main d'oeuvre cosmopolite (Italiens, Espagnols, Russes, Arméniens, Nord-Africains) est venue nourrir les grandes usines. Les villes nouvelles ont incarné longtemp...