Identity and framing processes play an important role in understanding the dynamics of social movements. In this talk, I discuss the opportunities of computational content analysis to study these processes using the discourse of the socialist newspaper “Vooruit” about the 1913 Belgian general strike as a case study. The strike of 1913 was Belgium’s third major strike aimed at electoral reform. The unexpected defeat of the left-wing cartel in 1912 resulted in spontaneous riots and strikes by the base of the socialist movement. The Belgian Labour Party managed to pacify these grassroot actions and channel the workers’ grievances into a general strike the following year. The party’s success in incorporating this non-institutionalised form of collective action had a significant impact on the dynamics of contention in Belgium. Previous research has argued the party’s organisational efforts were crucial for the success of the large-scale and peaceful strike. These efforts included, among other initiatives, the establishment of a propaganda committee. This talk presents the methodology to analyse the framing by the socialist newspaper “Vooruit” to (a) create a broader support for the issue of universal suffrage and (b) discipline the workers before the 1913 strike.