Le 9 mai 1950, Robert Schuman présentait sa proposition relative à une organisation de l'Europe, indispensable au maintien de relations pacifiques. Cette proposition, connue sous le nom de "déclaration Schuman", est considérée comme l'acte de naissance de l'Union européenne. Aujourd'hui, le 9 mai est devenu un symbole européen (journée de l'Europe) qui, aux côtés du drapeau, de l’hymne, de la devise et de la monnaie unique (l'euro), identifie l'Union européenne en tant qu'entité politique.

On the 9th of May 1950, Robert Schuman presented his proposal on the creation of an organised Europe, indispensable to the maintenance of peaceful relations. This proposal, known as the "Schuman declaration", is considered to be the beginning of the creation of what is now the European Union. Today, the 9th of May has become a European symbol (Europe Day) which, along with the flag, the anthem, the motto and the single currency (the euro), identifies the political entity of the European Union. Europe Day is the occasion for activities and festivities that bring Europe closer to its citizens and peoples of the Union closer to one another.