Europe of population are Saint Petersburg, Madrid, Berlin and Rome, each having over 3 million residents. When considering the commuter belts or metropolitan areas, within the EU (for which comparable data is available) London covers the largest population, followed in order by Paris, Madrid, Barcelona, Berlin, the Ruhr area, Rome, Milan, Athens and Warsaw. "Europe" as a cultural concept is substantially derived from the shared heritage of the Roman Empire and its culture. The boundaries of Europe were historically understood as those of Christendom (or more specifically Latin Christendom), as established or defended throughout the medieval and early modern history of
Population Europe Population Europe Population Europe is a collaborative network of Europe’s demographic research institutes and centres. It was founded in 2009. Its aim is to coordinate and strengthen research efforts and to contribute reliable facts and findings to public discussions of population issues. The network operates under the auspices of the European Association for Population Studies (EAPS) and is supported by the European Commission. Population Europe currently includes 25 European research institutes; it further collaborates with institutions working on population and policy issues. Population Europe has two branches: the Council of Advisors and the Information Centre. The Council of Advisors assembles