President of the European Commission three executives that were merged in 1967 following the Merger Treaty, namely the High Authority of the European Coal and Steel Community (from 1952), and the commissions of the European Atomic Energy Community and the European Economic Community (both from 1958). Secondly, a list is given over the presidents after the merger, when the single position presided over the Commission of the European Communities, until 2009 when the Treaty of Lisbon renamed of the institution, creating the President of the European Commission. The European Economic Community was established by the Treaty of Rome, presently known as the Treaty on the
European Economic Community absorbed into the newly consolidated European Union which merged in the other two pillars (however Euratom remained distinct). This was originally proposed under the European Constitution but that treaty failed ratification in 2005. The main aim of the EEC, as stated in its preamble, was to "preserve peace and liberty and to lay the foundations of an ever closer union among the peoples of Europe". Calling for balanced economic growth, this was to be accomplished through: For the customs union, the treaty provided for a 10% reduction in custom duties and up to 20% of global import quotas. Progress on