Alcide de Gasperi is elected president of the European Parliamentary Assembly.
Belgium, France, Germany, Italy, Luxembourg and the Netherlands meet in Brussels, Belgium. The French statesman Pierre Mendès France does not succeed in his request to attenuate the supranational character of the European Defence Community (EDC).
The French National Assembly rejects the European Defence Community Treaty.
Following the London Conference, agreements on a modified Brussels Treaty are signed in Paris, and the Western European Union (WEU) is created.
Jean Monnet, president of the ECSC High Authority, resigns after the EDC failure.
The European Court of Justice renders its first ruling.