A referendum on joining the European Economic Community was held in Denmark on 2 October 1972.Dieter Nohlen & Philip Stöver (2010) Elections in Europe: A data handbook, p524 The result was 63% in favour with a turnout of 90%.Nohlen & Stöver, p534 The law that Denmark should be member of the EEC was passed on 11 October 1972, and Denmark became a member on 1 January 1973.Danmarkshistorien: Ja til EF 1972 Ministry of Education of Denmark
Background According to Article 20, section 2 of the Danish constitution, any law that makes limitations to the sovereignty of the Danish state (as membership of the EEC would) must be passed in the Danish parliament with 5/6 of the parliament's members voting for the law.English version of the Danish constitution Folketing If a majority of members vote for the law, but not by 5/6 majority, and the government wishes to uphold the suggested law, the law can still be passed in a public referendum, as was the case in the 1972 referendum.
According to a 2022 study, municipalities that experienced more German-inflicted violence during the German occupation of Denmark in WWII were more likely to vote against joining the EEC.
Results
See also Danish withdrawal from the European Union
References