Abstract
This text is focused on migration to the American and European continents. It deals with the conceptualizations of the terms transnationalism, cosmopolitanism, the source space, target space, country of origin.
It shows the changes in the usage of these terms over the past hundred years and also indicates some changes in the migration and post-migration situations. For its interpretation, I have chosen the discussion on immigration, which took place in the United States of America during World War I and compare the argumentation then with the contemporary conceptualization of the terms.
I have selected the empirical examples of the changes in contemporary migrations from my own research work and from other surveys, which inter alia also took place in the Czech milieu.