History of the European Union The report was accepted at the Venice Conference (29 and 30 May 1956) where the decision was taken to organise an Intergovernmental Conference. The Intergovernmental Conference on the Common Market and Euratom focused on economic unity, leading to the Treaties of Rome being signed in 1957 which established the European Economic Community (EEC) and the European Atomic Energy Community (Euratom) among the members. The two new communities were created separately from ECSC, although they shared the same courts and the Common Assembly. The executives of the new communities were called Commissions, as opposed to the "High Authority". The EEC was
European Communities European Communities The European Communities (EC), sometimes referred to as the European Community, were three international organizations that were governed by the same set of institutions. These were the European Coal and Steel Community (ECSC), the European Atomic Energy Community (EAEC or Euratom), and the European Economic Community (EEC); the last of which was renamed the "European Community" ("EC") in 1993 by the Maastricht Treaty, which formed the European Union. When the Communities were incorporated into the European Union in 1993, they became its first pillar. The European Coal and Steel Community ceased to exist in 2002 when its founding