Results of the 1975 United Kingdom European Communities membership referendum
The 1975 United Kingdom European Communities membership referendum was a public vote that took place on 5 June 1975, on whether the United Kingdom should remain a member of the European Communities which was principally the European Economic Community (the Common Market). At the time the UK had already been a member of the EC for two and a half years since joining back on 1 January 1973 and was the first ever national referendum of its kind to be held in the country.