European Coal and Steel Community Treaties of Rome were signed by the six ECSC members, creating the European Economic Community (EEC) and the European Atomic Energy Community (EAEC or Euratom). These Communities were based, with some adjustments, on the ECSC. The Treaties of Rome were to be in force indefinitely, unlike the Treaty of Paris, which was to expire after fifty years. These two new Communities worked on the creation of a customs union and nuclear power community respectively. The Rome treaties were hurried through just before de Gaulle was given emergency powers and proclaimed the Fifth Republic. Despite his efforts to "chloroform" the Communities,
High Authority of the European Coal and Steel Community in Luxembourg's city hall on 10 August 1952. Jean Monnet, the architect of the ECSC, was elected as its first President. The supranational power exercised by the Authority did prompt suspicion by some, for example the government of France who ensured that in the European Economic Community (EEC) and European Atomic Energy Community (Euratom) more power would be in the hands of the Council. The Merger Treaty came into force in 1967; this combined the independent institutions of the ECSC and Euratom with those of the EEC. From that time the High Authority ceased to exist, its duties being taken