Oblasts of Ukraine
The oblasts () or regions of Ukraine, of which there are 24, are the main type of first-level administrative division of Ukraine, the other types being an autonomous republic (Crimea) and two cities with special status (Kyiv and Sevastopol). Ukraine is a unitary state, thus the oblasts do not have much legal scope of competence other than that which is established in the Ukrainian Constitution and by law. Articles 140–146 of of the constitution deal directly with local authorities and their competency. Oblasts are subdivided into raions (districts), ranging in number from 11 to 27 per entity . General characteristics. In Ukraine the term "oblast" denotes a primary administrative division. Under the Russian Empire and into the 1920s, Ukraine was divided between several governorates. The term "oblast" was introduced in 1932 by Soviet authorities when the Ukrainian SSR was divided into seven oblasts, replacing the previous subdivision system based on okruhas and encompassing 406 raions (districts). The first oblasts were Vinnytsia Oblast, Kyiv Oblast, Odessa Oblast, Kharkiv Oblast, and Dnipropetrovsk Oblast. Soon after that, in the summer of 1932, Donetsk Oblast was formed out of eastern parts of Kharkiv and Dnipropetrovsk oblasts; in the fall of 1932 Chernihiv  Oblast was formed on the border of Kyiv and Kharkiv oblasts. Between 1935 and 1938 there were several newly created and self-governed special border okrugs (okruhas) located along the western border of the Soviet Union in Ukraine and Belarus. Upon liquidation of the okrugs in 1937–1938, Kyiv, Vinnytsia, Odessa, and Kharkiv oblasts were each split into four additional oblasts (Zhytomyr Oblast, Kamianets-Podilsky Oblast (later Khmelnytskyi), Mykolaiv Oblast, Poltava Oblast). Just before World War II, the Donetsk Oblast was split into Stalino Oblast and Voroshylovhrad Oblast and the Kirovohrad Oblast was created out of portions of Kyiv, Mykolaiv and  Odessa oblasts. During World War II, Ukraine added eight more oblasts of the West Ukraine and Bessarabia. Upon the occupation of Ukraine by Nazi Germany the territory was split between General Government, Kingdom of Romania and Reichskommissariat Ukraine and carried out a completely different administrative division, see Reichskommissariat Ukraine. With the re-establishing of Soviet power in the state after the war, the administrative division by oblast resumed, adding one more oblast—Zakarpattia. In 1954, the Crimean Oblast was transferred from the Russian Soviet Federative Socialist Republic to the Ukrainian SSR; parts of the surrounding oblasts were incorporated into the  Cherkasy Oblast, while Izmail Oblast was absorbed by Odessa Oblast. In 1959, Drohobych Oblast was merged with Lviv Oblast. Most of Ukraine's oblasts are named after their respective administrative centers, which are also the largest and most developed cities in the region. Oblast populations range from 904,000 in Chernivtsi Oblast to 4.4 million in the eastern oblast of Donetsk. Each oblast is generally subdivided into about 20 raions (mean average, can range anywhere from 11 in Chernivtsi to 27 in Kharkiv and Vinnytsia Oblasts). Constitutional provisions and authority. The Ukrainian constitution establishes Ukraine as a unitary state. The specific  text of the constitution that refers to the territorial structure is as follows. Each of Ukraine's oblasts have their own legislative and executive authority, most of which is subordinate to the central government authorities in Kyiv. Each region is administered under laws passed by the Ukrainian government and the Constitution of Ukraine. Each region levies its own taxes and, in return, receive a portion of their budget from Kyiv, which gives them a portion of the taxes they levy. Executive power each of the oblasts (as well as in other subdivisions of Ukraine) are exercised by local elected administrations . The heads of local administrations are in turn appointed and dismissed by the President of Ukraine upon nomination by the Cabinet of Ministers. Since Ukraine is a unitary state, there is little true political power and weight that these local administrations actually hold. Carrying out their authorities, the heads of local administrations are accountable to the President and are subordinate to higher bodies of executive leadership. According to the Constitution the head of the heads of the local Oblast administrations should resign after a new President is elected. Legislative power in the oblast governments is exercised by their respective oblast  councils, which in turn supervise the activities of local administrations. They also have considerable budgets managed by an oblast council () made up of people's deputies (representatives) voted into office in regional elections every 4 years, the last of which took place in 2020. Nomenclature. The name of each oblast is a relative adjective, formed by adding a feminine suffix to the name of respective center city. E.g. "Poltava" is a center of "Poltavs'ka oblast"' (Poltava Oblast). Most of them are also sometimes referred to in a feminine noun form, following the convention of traditional regional place names, ending with  the suffix "-shchyna". E.g. Poltava Oblast is also called "Poltavshchyna". Exceptions to this rule include: The Dnipropetrovsk Oblast and Kirovohrad Oblast are pending renaming following the renaming of their capital cities to Dnipro and Kropyvnytskyi.