The Treaty of Rome, which established the European Economic Community (EEC), and the European Atomic Energy Community (EAEC) was signed by France, Germany, Italy, Belgium, the Netherlands and Luxembourg on March 25, 1957.
While still remaining separate entities the EEC and EACE, were during the 1960s merged into one organizational structure, called the European Community, which was the precursor of today's European Union.
See also History of the European Union
