The six states that founded the EEC (European Economic Community) and the other two Communities were known as the "inner six" (the "outer seven" were those countries who formed the European Free Trade Association). The six were France, West Germany, Italy and the three Benelux countries: Belgium, the Netherlands and Luxembourg. The first enlargement was in 1973, with the accession of Denmark, Ireland and the United Kingdom. Greece, Spain and Portugal joined in the 1980s. The former East Germany became part of the EEC upon German reunification in 1990. Following the creation of the EU in 1993, it has enlarged to include an additional sixteen countries by 2013.

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