[History and future of population movements]

This is a general historical review of global migration trends in the modern era. "The emigration to the New Worlds was in large part due to the demographic pressure within the European continent from the eighteenth century onwards. Up until the thirties a 'Europeanisation' of the planet took place. From this time onwards, migratory movements have tended to reverse, and Europe, as well as East Asian countries with low birth rates, have in turn become territories of immigration." (SUMMARY IN ENG)