Résumé de la thèse Unis dans la diversité : les enjeux éducatifs à l’épreuve de l’Europe multiculturelle. Le cas du Luxembourg.Thèse présentée et soutenue publiquement le 13 octobre 2022 en vue de l’obtention du doctorat de Sciences de l'éducation de l’Université Paris Nanterre.Sous la direction de Mme Dominique OTTAVI.Jury :Rapporteure : Mme Céline Chauvigné Université de NantesRapporteur : M. Bruno Maurer Université de LausanneMembre du jury : M. Fabrice Barthélémy Université Sorbonne nouvelle Paris 3Membre du jury : M. Bruno Garnier Université de Corse Pasquale PaoliMembre du jury : Mme Dominique Groux Université des Antilles ; The thesis analyses the development of one of the founding European concepts, that of unity in diversity, through the educational and integrational angles, which are of central importance in building a European identity in a multinational and multicultural Europe, in particular in view of an important enlargement and a uniquely complex integration among world political and economical entities. The European construction comprises currently almost thirty countries and about half a billion of the world’s population. An early economic construction is transforming into an ever more complex political construction which induces a different symbolic conception, as well as, especially after the turn represented by globalization and post Cold War geopolitical redistribution, cohesion needs and requirements regarding integration in a wide range of domains, be they political and economic, but also legal, social, educational, bearing identity and cultural dimensions which were not necessarily or explicitely present at the earliest stages of the European construction.The European multucultural dimension at the beginning of the 21st century is increasingly important, with the appearance of new challenges along with new tensions, which emphasize and reactualize a new reflexion on the European construction and experience. In view of an increasing cultural diversity accused in part by the ...