On 12 February 1969, the European Commission presents a memorandum to the Council on the coordination of economic policies and on monetary cooperation within the Community. The Council adopts the memorandum, known as the Barre Plan, on 17 July 1969.

In this opinion, the Monetary Committee of the European Economic Community welcomes the content of the memorandum from the Commission to the Council of 12 February 1969, which calls for greater economic and monetary cooperation within the Community.

On 10 July 1969, the Committee of Governors of the Central Banks of the Member States of the European Economic Community delivers its opinion on the Barre memorandum of 12 February 1969. The Committee particularly emphasises the coordination of the Member States' economic policies and the possibility of short-term monetary support within the Community.

On 17 July 1969, in Brussels, the Council of Finance Ministers of the Six, represented here by its President, Valéry Giscard d'Estaing of France, adopt the European Commission's Barre Plan for the coordination of economic policies and monetary cooperation at Community level, represented here by Commission President, Jean Rey.

On 22 January 1970, the German Ministry for the Economy publishes a note on the official German position on European monetary integration. On 12 February, the German Minister for the Economy, Karl Schiller, presents the German monetary plan for the establishment of an economic and monetary union by stages, more commonly known as the Schiller Plan.

On 27 January 1970, the Belgian Ministry of Finance publishes a note on a three-stage plan for European monetary solidarity.

On 26 February 1970, Hans Tietmeyer, an official in the German Ministry of the Economy and alternate member of the Werner Group, sends a report to Johann-Baptist Schöllhorn, State Secretary in the German Ministry of the Economy, on the conclusions of the meeting of the Economic and Finance Ministers of the European Community held on 23 and 24 February 1970 in Paris. He particularly mentions the remarks made at this meeting concerning a plan by stages for an economic and monetary union.

On 28 February 1970, Pierre Werner, Luxembourg Minister of State, President of the Government and Finance Minister, submits a new version of the text entitled The outlook for European financial and monetary policy, originally published in January 1968. In this new version, he proposes a five-point action plan for the achievement by stages of economic and monetary union. This document is known as the Luxembourg plan for monetary integration, or the first Werner Plan.

In his memoirs, former Luxembourg Prime Minister Pierre Werner recalls why 1968 was a pivotal year for monetary discussions.

In his memoirs, former Luxembourg Prime Minister Pierre Werner describes the monetary plans drawn up by Belgium, Germany and Luxembourg at the beginning of the year 1970.

On 18 March 1970, the Directorate-General for Economic and Financial Affairs of the Commission of the European Communities (CEC) publishes a set of tables comparing the four plans for the achievement by stages of an economic and monetary union: the Werner Plan, the Schiller Plan, the Belgian Plan and the CEC Plan.