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United Kingdom membership of the European Union
Period of the United Kingdom being a member state of the European Union / From Wikipedia, the free encyclopedia
The United Kingdom (along with the British Overseas Territory of Gibraltar) was a member state of the European Union (EU) and of its predecessor the European Communities (EC) – principally the European Economic Community (EEC) from 1 January 1973 until 31 January 2020. Since the foundation of the EEC, the UK had been an important neighbour and then a leading member state, until Brexit ended 47 years of membership. During the UK's time as a member state two referendums were held on the issue of its membership: the first, held on 5 June 1975, resulting in a vote to stay in the EC, and the second, held on 23 June 2016, resulting in a vote to leave the EU.