EEC Countries

Austria 1 January 1995

Belgium 25 March 1957
Bulgaria 1 January 2007
Cyprus 1 May 2004
Czech 1 May 2004
Denmark 1 January 1973
Estonia 1 May 2004
Finland 1 January 1995
France 25 March 1957
Germany 25 March 1957
Greece 1 January 1981
Hungary 1 May 2004
Ireland 1 January 1973
Italy 25 March 1957
Latvia 1 May 2004
Lithuania 1 May 2004
Luxembourg 25 March 1957
Malta 1 May 2004
Netherlands 25 March 1957
Poland 1 May 2004
Portugal 1 January 1986
Romania 1 January 2007
Slovakia 1 May 2004
Slovenia 1 May 2004
Spain 1 January 1986
Sweden 1 January 1995
UK 1 January 1973
This is a complete list of countries in the EEC. I found it while looking for something else. What I had not realized is how much it, the EEC had grown over the years. These countries are known as the eurozone (as most of them use the euro).