when did britain vote to join the eec
United Kingdom European Communities membership referendum, 1975 The United Kingdom European Communities membership referendum, also known as the Referendum on the European Community (Common Market), the Common Market referendum and EEC membership referendum took place on 5 June 1975 in the United Kingdom to gauge support for the country's continued membership of the European Communities (EC)—often known at the time as the "European Community” and the "Common Market" which it had entered on 1 January 1973 under the Conservative government of Edward Heath under the provisions of the Referendum Act 1975. Labour's manifesto for the October 1974 general election had promised that the people would decide "through the ballot box"[1] whether to remain in the EC.
Brexit In a referendum on 23 June 2016, 51.9% of the participating UK electorate voted to leave the EU, out of a turnout of 72.2%. On 29 March 2017, the UK government invoked Article 50 of the Treaty on the European Union. The UK is thus due to leave the EU on 29 March 2019.[1]