History of the European Coal and Steel Community (1945–57) as it would with the Court of Justice. However they would not share the ECSC's Council of High Authority. The two new High Authorities would be called Commissions, this was due to a reduction in their powers. France was reluctant to agree to more supranational powers and hence the new Commissions would only have basic powers and important decisions would have to be approved by the Council, which now adopted majority voting. Thus, on 25 March 1957, the Treaties of Rome were signed. They came into force on 1958-01-01 establishing the European Economic Community (EEC) and the European Atomic Energy
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,