Accession of the United Kingdom to the European Communities

Common card · No. 499778

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. The ECSC and EEC would later be integrated into the European Union under the Maastricht and Lisbon treaties in the early 1990s and mid-2000s. The UK had been the first country to establish a Delegation to the ECSC in 1952, and the first country to sign an Association Agreement with the Community in 1954. The UK had first applied to join in 1961, but this was vetoed by French President Charles de Gaulle in 1963. A second application, in 1967, was again vetoed by France. After de Gaulle had relinquished the French presidency...

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