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
Languages of Europe languages, around 20 million each fall within the Uralic and Turkic families. Still smaller groups (such as Basque and various languages of the Caucasus) account for less than 1% of European population between them. Immigration has added sizeable communities of speakers of African and Asian languages, amounting to about 4% of the population, with Arabic being the most widely spoken of them. Five languages have more than 50 million native speakers in Europe: Russian, German, French, Italian and English. While Russian has the largest number of native speakers (more than 100 million in Europe), English in Europe has the largest