The national sides, then 15 (eurozone + Monaco, San Marino and the Vatican who could mint their own) were each designed according to national competitions, though to specifications which applied to all coins such as the requirement of including twelve stars (see euro coins for more).
As the EU's membership has since expanded in 2004 and 2007, with further expansions envisaged, the common face of all euro coins from the value of 10 cent and above were redesigned in 2007 to show a new map.