Numerous emigrants and personalities active in the resistance against the Nazi regime, such as Ernst Reuter, Richard Löwenthal and Ernst Hirsch, returned to Berlin and shaped the beginnings of the FU, whose structure was to contribute in an exemplary manner to democratic organization after 1945 and which was therefore not only an old-style curatorial university, but also the first in German university history to give students a seat and a vote in the Academic Senate.
By the end of the 1950s, more than 10,000 students were already enrolled. At the end of the 1960s, against the backdrop of rigid university and social structures, the Vietnam War and the assassination attempt on Rudi Dutschke, a fierce ideological conflict broke out. Student protests were also part of the daily agenda in the 1970s, before the ideological dispute gave way to the pragmatic disputes of a modern mass university in the 1980s due to the steady growth of the FU.