When did Spain join the Euro zone?
Eurozone
{'answer_start': array([200]), 'answer_text': array(['1 January 1999'], dtype=object)}
In 1998, eleven member states of the European Union had met the euro convergence criteria, and the eurozone came into existence with the official launch of the euro (alongside national currencies) on 1 January 1999. Greece qualified in 2000, and was admitted on 1 January 2001 before physical notes and coins were introduced on 1 January 2002, replacing all national currencies. Between 2007 and 2015, seven new states acceded.