Spain
Originally, Italy (from 1870 to 1941). During WW 2 the British chased out the Italians and governed it for a few years. In 1950 it was joined in a Federation with Ethiopia.
The Netherlands.
The Netherlands
Belgium.
An accession country is a country which is in the process of joining a union, used specifically to refer to new countries joining the European Union.
Serbia, used to be Yugoslavia
There is no information about which European country has the lowest soap usage. Most Europeans are very clean and use just as much soap as is used in the United States.
The Euro, otherwise each country uses its own currency.
Luxembourg (the city) is the capital of Luxembourg (the European country). In other words, the same name is used for both.
No naturally occurring source of diamonds exists on the European continent, but many diamonds are owned and used by people and industries in every European country.
Ireland used the 'punt' until 2002, after which they changed over to the Euro, which is the standard used in the European Union.