English summary: In October 1945 - only one year after being destroyed in an air raid - the University of Bonn was re-opened. There was no everyday life at all: the university buildings were only poorly restored, the greater part of the academic staff incriminated because of their former Nazi-affiliations. The students were starving and they were suffering from a lack of housing and coal. Despite of all these needs, the students had a mood of idealism and the courage to start a new university life. For the first time, they now could enjoy an uncensored academic life with re-established international connections. They had the possibility to organise themselves in a free and self-determined way and could express their wishes and aimers freely. The students of Bonn University are representatives of a whole generation of students which became the political and social elite of the Federal Republic of Germany since the sixties. Around 1950, everyday life began to normalise. What had been regarded as extraordinary in the first post-war years, became routine now. At the same time the first post-war students were replaced by a new generation with altered attitudes towards political and social issues. German description: Nur ein Jahr nach ihrer Zerstorung im Bombenkrieg offnet die Universitat Bonn im Herbst 1945 wieder ihre Tore. Doch die Gebaude sind nur notdurftig hergerichtet, weite Teile der Dozentenschaft aus politischen Grunden untragbar, die Studenten hungern und leiden unter Wohnungsnot und Kohlenmangel. Und doch sind sie von Idealismus beseelt und bereit, den Neuanfang zu wagen. Sie kommen erstmals in den Genuss einer freien, unzensierten Wissenschaft, die schnell auch internationale Bindungen knupft. Sie verfugen uber lange ungekannte Moglichkeiten zur Selbstorganisation und zur freien Formulierung ihrer Wunsche und Ziele. Die Studenten der Universitat Bonn stehen reprasentativ fur eine ganze Studentengeneration, die in den 60er Jahren zur politischen und gesellschaftlichen Fuhrungsschicht der Bundesrepublik heranwachst. Anfang der 50er Jahre beginnt sich der universitare Alltag zu normalisieren. Gleichzeitig vollzieht sich ein Generationswechsel in der Studentenschaft, der sich in einer geanderten Haltung zu politischen und gesellschaftlichen Fragen widerspiegelt.