The European Political Community project failed in 1954 when it became clear that the European Defence Community would not be ratified by the French national assembly, which feared that the project entailed an unacceptable loss of national sovereignty.
[1][2] Following the collapse of the EPC, European leaders met in the Messina Conference in 1955 and established the Spaak Committee which would pave the way for the creation of the European Economic Community (EEC).
Since the end of World War II, sovereign European countries have entered into treaties and thereby co-operated and harmonised policies (or pooled sovereignty) in an increasing number of areas, in the European integration project or the construction of Europe (French: la construction européenne).
The following timeline outlines the legal inception of the European Union (EU)—the principal framework for this unification.
The EU inherited many of its present responsibilities from the European Communities (EC), which were founded in the 1950s in the spirit of the Schuman Declaration.