Brussels and the European Union a provisional seat, though with the Common Assembly in Strasbourg as that was the only city with a large enough hemicycle (the one used by the Council of Europe). This agreement was temporary, and plans were set to relocate the institutions to Saarbrücken which would serve as a "European District", but this did not occur. The 1957 Treaties of Rome established two new communities, the European Economic Community (EEC) and the European Atomic Energy Community (Euratom). These shared the Assembly and Court of the ECSC but created two new sets of Councils and Commissions (equivalent to the ECSC's High Authority).
Charter of Fundamental Rights of the European Union the drafters of the EEC Treaty wished to eschew any implicitly political elements. However, the idea that the purely economic end of the new EEC Treaty would be unlikely to have any implications for fundamental rights was soon to be tested. Soon after the entry into force of the EEC Treaty, the Community established itself as a major political entity with policy ramifications beyond its economic aims. In 1964, the European Court of Justice handed down its decision in "Costa v ENEL", in which the Court decided that Union law should take precedence over conflicting national law. This meant that