Wars (1917–19). The situation improved only after 1920. In 1920–21, the industrial production was at the 12% level of that in 1913, but by 1925–26 it recovered to 93% and in 1937 reached 700%. New giant plants were raised in Magnitogorsk (1932, iron and steel production), Bereznikovskiy (1932, Chemistry), Sverdlovsk (1933, Heavy Machinery), Chelyabinsk (1933, tractors), Solikamsk (1934, potassium), Krasnokamsk (1936, pulp and paper), Novotagilsk (metallurgy) and others. In 1929, oil was discovered in the Kama River basin and its production began in 1932 in Bashkortostan. During World War II (1941–45) Ural became the industrial backbone of Russia as most important industrial enterprises were evacuated there from the western Russia occupied by Germans. From the summer to winter of 1941, 667 factories were moved to Ural and by the end of 1941 Ural accounted for 62% of the Soviet iron production. The Ural's industrial production increased 3 times in 1943 relatively to 1941 and the military production increased 6 times. During the war, Ural accounted for 40% of the Soviet military production. Three Ural's plants gave 66% of Soviet tanks and mobile artillery units. The annual increase of production was about 50%. In 1946, most plants were converted into non-military directions. Ethnic composition The Northern Urals is home to Uralic speaking people like Udmurts, Mari, Komi, Mansi and Khanty people. The indigenous population of the Polar Urals consists of the Nenets and Samoyedic peoples who are widespread through the Siberia and have their own languages. Bashkirs form the largest indigenous group of the region. They live in the Southern Ural and speak a language of the Turkic group. Kazakhs are another significant national fraction of the Southern Ural. Many northern tribals still continue their traditional activities, including fishing, hunting and animal husbandry (reindeer). The nomadic people of the south used to breed horses, but are mostly settled now and are involved in agriculture, especially growth of wheat, potato, melons and watermelons. The majority of the Urals population (about 80%) is however Russians, who are mostly concentrated in the cities of the Central and Southern Urals and are involved in the industry. Current administrative divisions of Urals The table (see also maps above) reveals that the Ural Federal District and Ural economical region are rather different entities, which geographically differ from the Urals, even though the Urals is not well defined geographically. In particular, those entities include parts of Volga and