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 Area idea of the EEC enlarging with more member states, as he feared that it would impede the ability of the Community to complete the internal market reform and establish the monetary union. Delors proposed a European Economic Space (EES) in January 1989, which was later renamed the European Economic Area, as it is known today. By the time the EEA was established, however, several developments hampered its credibility. First of all, Switzerland rejected the EEA agreement in a national referendum on 6 December 1992 obstructing full EU-EFTA integration within the EEA. Furthermore, Austria had applied for full EEC membership in