List of European Union countries

The "Birthday" of the European Union is considered May 9, 1950. Annually, 9 May is celebrated as Europe Day.

The first agreement establishing the European Economic Community was signed in 1957 between six countries: Belgium, Germany, France, Italy, Luxembourg and the Netherlands.

Denmark, Ireland and the UK are joined in 1973, Greece in 1981, Spain and Portugal in 1986, in subsequent years many other countries have joined the Union. Today the EU consists of 28 member countries.

It is not only an economic union, but the single market with no borders for trade, with the single euro currency used by 19 member states of the Eurozone. Furthermore, it is the political union with own parliament and other institutions. The Schengen Agreement signed in 1985 allows the free movement of citizens without passport controls at border crossings within Schengen Area.

Alphabetical list of countries of European Union (EU) with the accession dates
CountryAccession date
A
AustriaJanuary 1, 1995
B
BelgiumMarch 25, 1957
BulgariaJanuary 1, 2007
C
CroatiaJuly 1, 2013
CyprusMay 1, 2004
Czech RepublicMay 1, 2004
D
DenmarkJanuary 1, 1973
E
EstoniaMay 1, 2004
F
FinlandJanuary 1, 1995
FranceMarch 25, 1957
G
GermanyMarch 25, 1957
GreeceJanuary 1, 1981
H
HungaryMay 1, 2004
I
IrelandJanuary 1, 1973
ItalyMarch 25, 1957
CountryAccession date
L
LatviaMay 1, 2004
LithuaniaMay 1, 2004
LuxembourgMarch 25, 1957
M
MaltaMay 1, 2004
N
NetherlandsMarch 25, 1957
P
PolandMay 1, 2004
PortugalJanuary 1, 1986
R
RomaniaJanuary 1, 2007
S
SlovakiaMay 1, 2004
SloveniaMay 1, 2004
SpainJanuary 1, 1986
SwedenJanuary 1, 1995
U
United KingdomJanuary 1, 1973