Papers in this book are concentrated on the time of big social, political and cultural changes and its characteristics especially on the example of the 20th century (1900 - 1918 - 1938 - 1945 - 1968 - 1989 - 2000). The time of the turn (Wende) is the time of transition between two situations, but it isn't only the end (Bruch), it is a continuity, too.