In order to understand the national identities of our time, we need to understand the history of discourses defining the nation and those included and excluded from that definition. This study explores discursive processes of othering in constructions of Swedish national identity in a selection of texts from 1870 to 1940. Analysing discursive constructions of national identities (Wodak, R., de Cillia, R., Reisigl, M., & Liebhart, K. [2009]. The discursive construction of national identity. Edinburgh University Press), the paper offers insight into processes of othering that construct and perpetuate Swedish identity through strategies of assimilation and dissimilation. The study indicates that Othering is a context-dependent discursive process that defines the national self in interaction with dominant discourses in a given time and place. Colonial discourses construct an exotic, black or oriental Other in colonised parts of the world, compared to white, European Swedes. Scientific racism discourses classify the Other as inferior compared to a pure Swedish race. In eugenics discourses, finally, an undesired Other, defined by psychological devices as 'substandard' or 'imbecile', is contrasted to an ideal Swedish citizen. While discourses and ideas of who the Other is changes over time, othering seems to be a discursive practice with a linguistic repertoire that can be used to create and unify national identity, as well as managing perceived social threats.