European Atomic Energy Community Euratom at Val Duchesse in 1956 drew up the essentials of the new treaties. Euratom would foster co-operation in the nuclear field, at the time a very popular area, and would, along with the EEC, share the Common Assembly and Court of Justice of the ECSC, but not its executives. Euratom would have its own Council and Commission, with fewer powers than the High Authority of the European Coal and Steel Community. On 25 March 1957, the Treaties of Rome (the Euratom Treaty and the EEC Treaty) were signed by the ECSC members and on 1 January 1958 they came
European Coal and Steel Community their fields rapidly expanded and the EEC became the most important tool for political unification, overshadowing the ECSC. Despite being separate legal entities, the ECSC, EEC and Euratom initially shared the Common Assembly and the European Court of Justice, although the Councils and the High Authority/Commissions remained separate. To avoid duplication, the Merger Treaty merged these separate bodies of the ECSC and Euratom with the EEC. The EEC later became one of the three pillars of the present day European Union. The Treaty of Paris was frequently amended as the EC and EU evolved and expanded. With the treaty due