The European Union, as we know it, began with the Treaty of Rome that was
signed on 27 March 1957 by the heads of state of France, Germany, Italy, The
Netherlands, Belgium and Luxembourg.
Click on the arrow to see the time-line of EU Treaties

In creating the European Community, as it was first called, the signatories included among
their objectives: |
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to lay the foundations of an ever closer union
among the peoples of Europe, |
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to ensure economic and social progress by
common action to eliminate the barriers that divide Europe, |
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to improve the living and working conditions of
the peoples of Europe, |
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to strengthen the unity of the economies of
Europe by reducing the differences existing between the various regions and the
backwardness of the less favoured regions, |
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to contribute to the progressive abolition of
restrictions on international trade, |
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to pool resources so as to preserve and
strengthen peace and liberty, calling upon the other peoples of Europe who share their
ideal to join in their efforts, |
Since then the European Union has grown and now consists of 27 member states,
including since 2004 countries that were formerly part of the central and eastern European
communist bloc. The UK became a member in 1973. |
Click on the flag here to see how the EU has grown since 1951.

The number of stars on the EU flag has nothing to do with the
number of Member States.
There are twelve stars because the number twelve is traditionally the symbol of
perfection, completeness and unity. However many states join the EU, the flag remains
unchanged. |
How the EU makes laws  |