The European Union celebrated its 60th anniversary in 2017, but celebrations were muted by Brexit and the growing sense of a crisis of identity. However, as this seminal work shows, the history and ambition of the European Union are considerable. Written by key stakeholders who, between them, acted as architects, adjudicators and arbitrators of the project, it presents the definitive history of the first two generations of the European Union. This book revisits the birth and consolidation of the great project of a united Europe and the political, institutional, judicial and economical frameworks of the European Union: from the process towards integration, to the advancements and the impasses in building a political union.