Europ. Community (1957/1958)
EC 6+3
EC 9 (1973)
EC 9+1
EC 10 (1981)
EC 10+2
EC 12 (1986)
EC 12, inc. Ex-GDR
EC 12 (1990)
European Union (1992/1993)
EU 12+3
EU 15 (1995)
Eurozone (1999/2002)
EU 15+10
EU 25 (2004)
EU 25+2
EU 27 (2007)
EC-EU enlargement (animated)
EU 27 (inc. Kosovo)
European Economic Area (EEA)
Eurozone (2009)
Candidate countries
Eastern Partnership
Further enlargement