Organisational chart showing the pro-European movements and the key figures involved (1948)

Diagram showing the operation and organisation of the institutions of the European Coal and Steel Community (ECSC), as established by the Treaty signed in Paris on 18 April 1951.

In September 1952, the Common Assembly of the European Coal and Steel Community held its first session in the Palais de l'Europe, Strasbourg, made available by the Council of Europe Consultative Assembly. The members of the Common Assembly took their places in the hemicycle in alphabetical order.

Diagram showing the rotating presidencies of the Special Council of Ministers of the European Coal and Steel Community (ECSC), including the names and the offices of the presidents-in-office.

Diagram illustrating the organisational structure of the General Secretariat of the Common Assembly in 1953.

Diagram showing the functioning of the institutions provided for by the Treaty establishing the European Defence Community (EDC), the placing of Member States’ armed forces (European Defence Forces) at the disposal of the Community, and the link between the EDC and the North Atlantic Treaty Organisation (NATO).

Diagram showing the functioning of the European Political Community according to the draft Treaty embodying the Statute of the European Community of 9 March 1953.

Diagram showing the operation and organisation of the institutions of the European Economic Community (EEC), as established by the Treaty signed in Rome on 25 March 1957 by the representatives of the six Member States of the European Coal and Steel Community (ECSC).

Diagram showing the operation and organisation of the institutions of the European Atomic Energy Community (Euratom), as established by the Treaty signed on 25 March 1957 in Rome.

Diagram illustrating the organisational structure of the Secretariat General of the European Parliamentary Assembly in 1958.

Diagram illustrating the merger of the executives that resulted from the entry into force on 1 July 1967 of the Treaty of 8 April 1965 establishing a Single Council and a Single Commission of the European Communities.

Organisation chart of the ECSC High Authority (situation in June 1967).