In NUMBER@1 , LOCATION@1 became one of the six founding countries of the ORGANIZATION@1 -LRB- later the ORGANIZATION@2 -RRB- , and , in NUMBER@2 , it joined the euro currency area .

NUMBER@3 - LOCATION@1 joined the ORGANIZATION@3 NUMBER@1 - LOCATION@1 became one of the first six members of the ORGANIZATION@1 .
