National districts of the Soviet Union

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right|thumb|200px|Marchlewszczyzna on the map of western part of Administrative divisions of Ukraine (1925–1932)|Polissia Subdistrict in 1926 right|thumb|200px|Map of the district in 1931 right|thumb|200px|Julian Marchlewski Marchlewszczyzna (; ) was a Polish National District in the Ukrainian Soviet Socialist Republic created as an experiment and as part of the Soviet korenizatsia campaign in to the west of Zhytomyr on 21 July 1925 by resolution of the Little Presidium of the All-Ukrainian Central Executive Committee. Its capital, the town of Dovbysh, was renamed later in 1926 as Marchlewsk.

administrative unite of the Soviet Union