"To illustrate how dramatically populations can displace each other over time, the historian E.M. Kulischer once reminded his readers that in A.D. 900 Berlin had no Germans, Moscow had no Russians, Budapest had no Hungarians, Madrid was a Moorish settlement, and Constantinople had hardly any Turks. He added that the Normans had not yet settled in Great Britain and before the sixteenth century there were no Europeans living in North or South America, Australia, New Zealand, or South Africa."