This pattern began at the start of the 'European project' over half a century ago. Spillover effects from the original Coal and Steel Community of the 1950's led to the creation of the European Economic Community, then to the European Community, and finally to the creation of the Union.
这个模式最早开始于半个世纪前的"欧洲计划"。50年代来自煤和钢社团的外溢效应导致了欧洲经济共同体的产生，接着又出现了欧洲共同体，最后成立了欧盟。每一步都是更大的结合。