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
Accession of the United Kingdom to the European Communities Accession of the United Kingdom to the European Communities The Accession of the United Kingdom to the European Communities (EC) – the collective term for the European Coal and Steel Community (ECSC), the European Economic Community (EEC) and the European Atomic Energy Community (EAEC) – took effect on 1 January 1973. This followed ratification of the Accession treaty which was signed in Brussels on 22 January 1972 by the Conservative prime minister Edward Heath, who had pursued the UK's application to the EEC since the late 1950s. Denmark and Ireland also joined as part of the same expansion but Norway,