We focus our research in all those subjects that contribute to the understanding of the development and integration of Europe from a socio-economic perspective. The GIS approach takes into account the geospatial condition of data, which is crucial for the understanding of Europe's evolution throughout last centuries. A Geographical Information System is not only a solution that enables to create and visualize all sort of data on interactive maps, but also a technology that enables to go further when analysing this data, so that the results and conclusions achieved cannot be accomplished with other tools.