Three periods in the history of the Ladogan Karelia in the form of administrative regions of the Korela Land of the Great Novgorod – the Korela Uezd (district) of Russia – the Keksholm Lan of Sweden demonstrate an evolutionary continuum in the systems of settlement and territorial administrative arrangements. Ladogan Karelia constituted an individual administrative unit, always divided into two parts – south and north of the Vuoksa River. People settled in the Ladoga area following the natural (agriculture- and trades5related) features of the territory. The original tribal division of Karelians transformed into distinctions among parishes, which later, in the 13th–15th centuries, served as the basis for the administrative division into pogosts: church – parish – pogost. In the 16th century new parishes emerged in the pogosts to form new pogosts later on, in the 17th century – under Swedish rule. In the 18th century this system moved on into the imperial phase of the history, and persisted until 1765.