Jan. 1, 1973
Denmark did not leave the EU. It is still a member. It does not use the Euro, but that does not mean it is not in the EU. Some other EU countries do not use the Euro. Only 19 of the 28 member countries use it.
It became an EU member on 1st January, 2007.
The UK was a founding member of the EU.
Croatia will become a member of the EU on July 1, 2013.
No. Greenland left the European Economic Community in 1985. This organization was later renamed the European Union in 1993. Greenland still has some connection with the EU since it is a Danish territory and Denmark remains a member of the EU.
Yes, Denmark is a member of the European Economic Comunity.AustriaBelgiumBulgariaCyprusThe Czech RepublicDenmarkEstoniaFinlandFranceGermanyGreeceHungaryIrelandItalyLatviaLithuaniaLuxembourgMaltaThe NetherlandsPolandPortugalRomaniaSlovakiaSloveniaSpainSwedenThe United Kingdom
Croatia joined the EU on July 1st, 2013.
1981
2004
That must be a mistake, Denmark already IS a member of the European Union, but it's not a member of the Eurozone (countries that use Euro as an official currency). There is no optimistic prognosis for Denmark joining the Eurozone because it depends on public referendum.
1st of May, 2004
There is no 7th member of the EU. What was later to become the European Union was founded by 6 countries in 1957. On the 1st of January 1973, the membership jumped directly to 9 when 3 new countries joined. Those 3 countries were Ireland, the United Kingdom and Denmark. None can really be said to be the 7th member, as they all joined at the same time.