Dnieper Ukraine
The term Dnieper Ukraine (: "over Dnieper land"), usually refers to territory on either side of the middle course of the Dnieper River. The Ukrainian name derives from nad‑ (prefix: "above, over") + Dnipró ("Dnieper") + ‑shchyna (suffix denoting a geographic region). Historically, this region is tightly entwined with the history of Ukraine and is considered as the heart of the country. Due to its size, the region is conditionally subdivided into Upper Dnieper Ukraine, Central Dnieper Ukraine, and Lower Dnieper Ukraine in reference to Dnieper's stream flow. Upper and Central separate at mouth of Desna River which is roughly the city of Kyiv, while Lower and Central around Khortytsia which is roughly the city of Zaporizhia. The term Dnieper Ukraine appeared soon after the partitions of Poland when Ukraine as former territory of the Polish–Lithuanian Commonwealth became divided between the Russian Empire and Austrian Empire and was referred to the Russian controlled Ukraine. The term was phased away soon after 1939. Ukrainians sometimes call it Great Ukraine (). The term is mentioned in the Ukrainian Unification Act (1919) where it says: "From now on into one merge torn away one from other portions of United Ukraine, the West-Ukrainian People's