Escape, expulsion after the World War II and its commemoration

In September 2006 I took part on German-Polish seminar about escape, expulsion after the World War II and their commemoration. We were listening to memories of Sybiracy. We had a discussion with a member of German Association of German Displaced Persons (Bund der deutschen Vertriebenen). We've visited Cedynia to watch the monument of a battle by Cedynia and to discuss about myth of Piast dynasty.