This chapter deals with the history of a concept’s spatialisation, or the provision of a nation with a spatial form and efforts to situate it in space, which did not yet presume the establishment of political control over it. In the case of the concept of Ukraine, the process of spatialisation took place in the 1870s as a result of the ethnographic-statistical expedition of Pavlo Chubynsky. Organised by the Imperial Russian Geographical Society to undermine the idea of the Polishness of the empire’s southwestern provinces, the expedition was used by Ukrainian activists to establish the borders of Ukraine empirically, represent them on the map, and thus legitimise Ukraine as a self-standing spatial entity using the language and methods of modern science.