Censorship in Europe gained momentum in mid sixteenth century when print culture reached its full maturity and religious strife made communication control a matter of political relevance. At the same time, science moved away from traditional pathways of enquiry to embrace innovation instead. In the same way that political structures interfered in the early modern religious and moral debate, they also intruded in the way knowledge was communicated. Thus, politics indirectly partook in the consolidation of modern knowledge by filtering its content and shaping the language in which it was delivered. This seminar surveys the transformative power of politics over knowledge. The early modern period will provide abundant examples of normative intrusion in the modes of knowledge communication, thus allowing us to acquire a solid understanding of the dynamics at task. Modern times instead may provide examples of indirect interposition which will be equally accounted.