Denmark joined the EU in 1973 as one of the first countries.
Euro is the official currency of the European Union. However, some countries inside the EU, decided to keep their traditionnal money (UK sill use the Pound). The Euro zone is the group of countries that had adopted the Euro (€) as their currency. On the 27 countries in the EU, 15 countries belong to the zone Euro. The other countries have either refused (UK, Sweden, Denmark....) adopting the Euro or are waiting for their Economies to be fit with the legal economics demandings defined by the EU.
No. Wales uses Sterling not the Euro.
Not all European countries were convinced that the a single European currency would be viable without a complete political union of all the countries in the Euro-zone. They could not see how economic and budgetary discipline could be maintained across the political and banking system of the independent states and as they did not want to make Europe a single country, they refused to join the Euro. It would appear from the problems that have happened with the Euro, that they were correct.
Euro zone
Euro is nothing but has the currency which is used in European countries it is used in 16 of the 27 countries which is known has Euro zone and American dollar is the dollars which is used outside the banks of the European countries and their is also a lot difference in the value of Euro and Dollars
At the moment the euro has a huge impact of those in the euro zone and also those that aren't in the euro zone, the state of the euro affects the price of imports and exports as for example, places like England do a lot of trading with countries within Europe. However, for industries such as tourism the Euro can have a good impact for those who aren't in the euro zone as the value of the euro goes down- so instead of the euro being worth £1.50 it is worth £1.30.
As of the 1st of January 2011, 17 of the 27 members of the European Union use the Euro as their currency. Those 17 countries are sometimes called the Euro Zone. See the related questions.
Euro zone is two words. It's the zone where the Euro is used as a unit of currency.
The United Kingdom is not the only country in Europe that does not use the Euro as their currency. Only 17/50 countries in Europe use the Euro (which is about 1/3 of European countries). Ireland, Portugal, Spain, France, Malta, Italy, Slovenia, Slovakia, Greece, Cyprus, Austria, Germany, Luxembourg, Belgium, the Netherlands, Finland, and Estonia.
Lithuania was the most recent country to join the euro zone, adopting the euro on January 1, 2015. Prior to that, Latvia joined on January 1, 2014 and Estonia on January 1, 2011.
This depends, the Euro came out in 2001 for twelve of the countries then in 2003 came out the euro in San Marino, Vatican City and Monaco. 2007 was the year when Slovenia joined the euro zone followed by Malta and Cyprus (2008). Now (2009) Slovakia joined the euro zone. If you have coins that are dated 1999 or 2000 that is because that was the year that the mint started to make the euro coins.