On 7 April 1951, the East German daily newspaper Tägliche Rundschau publishes a statement by the Executive Committee of the German Communist Party warning of the dangers of the Schuman Plan and calling on Members of the West German Parliament not to ratify the ECSC Treaty.

On 18 April 1951, on the occasion of the signing of the Treaty establishing the European Coal and Steel Community, the German daily newspaper Die Welt outlines French fears concerning the power held by the High Authority and the economic might of Germany.

On 19 April 1951, following the signing of the Treaty establishing the European Coal and Steel Community (ECSC) in Paris, the German daily newspaper Die Welt emphasises the decisiveness of the step taken on the road to European unity.

In 1951, the East German Government authorities publish a brochure in which they outline the many dangers of the Schuman Plan and call on German and French workers to fight against its implementation.

Stamp issued by the Luxembourg Post Office featuring the signature page of the Treaty establishing the European Coal and Steel Community (ECSC), also known as the Treaty of Paris.

On 30 July 1951, the Socialist Parties of Belgium, France, Germany, Italy, the Netherlands and Luxembourg adopt a draft joint declaration on the conditions which must be met if the European Coal and Steel Community (ECSC) is to succeed.

On 30 July 1951, the Belgian delegation asks all the Socialist Members of Parliament of the Six to debate the implications of the Treaty establishing the European Coal and Steel Community (ECSC) with a view to the establishment of a common position during the parliamentary debates concerning the ratification thereof.

On 27 April 1951, after the signing of the Treaty establishing the European Coal and Steel Community (ECSC), the weekly journal Paraat, mouthpiece of the Dutch Socialist Party, emphasises the implications of the Schuman Plan.

On 19 April 1951, the day after the signing of the Treaty establishing the European Coal and Steel Community (ECSC) in Paris, the Dutch daily newspaper Het Parool fervently hopes that the process of European integration will be accelerated.

In 1951, the Belgian monthly magazine La Tribune des services publics presents the Schuman Plan to pool European coal and steel production as a solution to the economic difficulties faced by the coal industry in Belgium.