Hello gyus I will telling you more deteils about Which Currency Is being Uniformly Used In The Countries Of The European Union Since January 1, 1999? After the formation European union or EU, 11 members-nation decided to adopt the Euro as a single currency on January 1, 1999.
Greece was the 12th nation to accept this, So on January 2, 2002, new Euro banknotes and legel tender were introduced by the EU.