Since its establishment, the European Union has grown from 12 countries when it was founded in 1993 to 27 countries in 2007, and it is still expanding. 199 1 year 1 year 1 October/Europe's single currency, the euro, officially came out and entered the circulation field on 1 October/October/October/2002.
There is no unified currency in NAFTA.
In addition, the former is only an economic organization and has no other functions.
Besides economy, cooperation among EU members includes energy, politics, national defense (military), science, education, culture and health.