Southern Russia or the South of Russia (Russian: Юг России, IPA: [juk rɐˈsʲiɪ]) is a colloquial term for the southernmost geographic portion of European Russia. The term is generally used to refer to the region of Russia's Southern Federal District and North Caucasian Federal District.
The term is informal and does not conform to any official areas of the Russian Federation as designated by the Russian Classification on Objects of Administrative Division (OKATO).
History
Early humans have inhabited the Caucasus and Pontic–Caspian steppe for millennia, since the Prehistoric Age. During the Early Middle Ages, the Eastern Slavic tribes, such as the Antes, settled in the southern region of European Russia from the 3rd century onwards. Southern Russia played an important role in the influence of Byzantine culture on Kievan Rus' and its successor state, the Tsardom of Russia. Moreover, Persian culture has also contributed to enrich the cultural heritage of Southern Russia.
During the Late Middle Ages, the Caucasus was invaded by the Mongols and their Turkic vassals. The latter tribes established a Tatar state in the region, formerly located between the Volga and Don rivers. According to historical sources, the region was subjected to Turkification and peoples that inhabited the lands of Southern Russia converted to Islam during that time, after contact with the Mongols.
During the Russian Civil War (1917–1922), a military quasi-state called "South Russia" briefly existed from 1919 to 1920, which spanned the southern region of the Russian Empire, including portions of present-day Ukraine. In Soviet historiography, it also was referred to as "White South", in reference to the White Army that fought the Bolsheviks there along with the Armed Forces of South Russia and the Volunteer Army.