European Communities and a European Political Community failed leading to a return to economic matters. In 1957, the EAEC and EEC were created by the Treaties of Rome. They were to share some of the institutions of the ECSC but have separate executive structures. The ECSC's aim was to combine the coal and steel industries of its members to create a single market in those resources. It was intended that this would increase prosperity and decrease the risk of these countries going to war through the process of European integration. The EAEC was working on nuclear energy co-operation between the members. The
Symbols of the European Union represent all the peoples of Europe, even those outside European integration. The flag was designed by Arsène Heitz and Paul M. G. Lévy in 1955 for the CoE as its symbol, and the CoE urged it to be adopted by other organisations. In 1985 the EU, which was then the European Economic Community (EEC), adopted it as its own flag (having had no flag of its own before) at the initiative of the European Parliament. The flag is not mentioned in the EU's treaties, its incorporation being dropped along with the European Constitution, but it is formally adopted in law.