 The borders of the present-day Warmian-Masurian Voivodeship in Poland correspond closely to those of southern East Prussia.The Prussian central government appointed for every province an "Oberpräsident" ("Upper President") carrying out central prerogatives on the provincial level and supervising the implementation of central policy on the lower levels of administration.Since 1875, with the strengthening of self-rule, the urban and rural districts ("Kreise") within each province (sometimes within each governorate) formed a corporation with common tasks and assets (schools, traffic installations, hospitals, cultural institutions, jails etc.)