The current European Union (EU) has existed since 1 November 1993. It emerged from the Treaty of Maastricht largely negotiated during 1991. But the history of European integration goes further back. The Schuman Declaration of 9 May 1950 led to the creation of the European Coal and Steel Community (ECSC) in 1951, and in 1957 the two Treaties of Rome created the European Economic Community (EEC) and the European Atomic Energy Community (EAEC or EURATOM), which started operating from 1 January 1958. For some years the EEC was often referred to as the Common Market. The Merger Treaty of 1965 (in force since 1967) created a single executive, the European Commission, and a single Council of Ministers. The three Communities from the beginning in 1958 shared the Parliamentary Assembly and European Court of Justice (ECJ). Although these Communities still had separate treaties, they were increasingly seen as the European Community (EC).

This new edition of Historical Dictionary of the European Union has a chronology, an introductory essay, appendixes, and an extensive bibliography. The dictionary section has over 400 cross-referenced entries on important personalities, member states, internal policies, external relations, basic theories, treaties, and law. This book is an excellent access point for students, researchers, and anyone wanting to know more about the European Union.