Jan Cygan and Linguistic Change in Polish in Wrocław after 1945

The paper discusses changes in pronunciation of Polish in the Polish population in Wrocław after 1945, when almost all German citizens were expelled from the city. The paper reviews various interpretations of the changes in the literature, presents relevant demographic factors shaping the accents, and interprets their influence and the outcome of demographic processes, supporting them by anecdotal evidence, relating them also to Jan Cygan’s accent.