Through an analysis of the Italian context, this article illustrates how censoring attitudes shaped the modern meaning of pornography between the last two decades of the nineteenth century and the years of the Great War. The difference between the ideas of pornography and obscenity is pointed out through a concise examination of censorship archive documents from the Lombardo-Venetian Kingdom, the State of the Church, and the Kingdom of the Two Sicilies, followed by an overview about how sexuality was intended by Italian sexologists and moralist intellectuals during the period of nation-building following the unification of 1861. In their writings, pornography is described as a source of corruption, especially for young people, and a social threat to be stopped. From 1891 onwards, mobilisations and struggles against pornography were organised by associations and politicians: these activities and debates, which led to the demand for specific legislation to address this phenomenon, are here reconstructed through newspaper articles and archive documents until the Great War period, when the use of the word pornography became even wider, as well as the debates around it and its social meaning.