The fact that a revolution by the working class in Germany never happened could be put down to the "subjective factor", especially the absence of a "Marxist-Leninist offensive party". Contrary to the official party line, Rudolf Lindau supported the theory that the German Revolution had a Socialist tendency. Consistently, the founding of the KPD (Communist Party of Germany) was declared to be the decisive turning point in German history, but in spite of ideological bias, historical research in the GDR expanded detailed knowledge of the German Revolution. During the 1950s, West German historians focused their research on the final stages of the Weimar Republic. In the 1960s, they shifted to its revolutionary beginnings, realising that the decisions and developments during the revolution were central to the failure of the first German Republic. The workers' and soldiers' councils especially moved into focus, and their previous appearance as a far-left movement had to be revised extensively. Authors like Ulrich Kluge, Eberhard Kolb and Reinhard Rürup argued that in the first weeks of the revolution the social base for a democratic redesign of society was much stronger than previously thought and that the potential of the extreme left was actually weaker than the MSPD's leadership, for example, assumed. As "Bolshevism" posed no real threat, the scope of action for the Council of the People's Deputies (also supported by the more reform-oriented councils) to democratise the administration, military and society had been relatively large, but the MSPD's leadership did not take that step because it trusted in the loyalty of the old elites and mistrusted the spontaneous mass movements in the first weeks of the revolution. The result was the resignation and radicalisation of the council movement. The theories have been supported by the publications of the minutes of the Council of the People's Deputies. Increasingly, the history of the German Revolution appeared as the history of its gradual reversal. This new interpretation of the German Revolution gained acceptance in research rather quickly even though older perceptions remained alive. Research concerning the composition of the Worker's and Soldier's Councils which today can be easily verified by sources is undisputed to a large extent, but the interpretation of the revolutionary events based on this research has been already criticised and partially modified since the end of the 1970s. Criticism was aimed at the partially idealised description of the Workers' and Soldiers' Councils which especially was the case in the wake of the German Student Movement of the 1960s (1968).