 In 1935, the first line of the Moscow Metro opened with a total length of 11.2 km.Attention was paid to the industrialization of agriculture.Due to the emergence of domestic tractor construction, in 1932, the Soviet Union refused to import tractors from abroad, and in 1934 the Kirov Plant in Leningrad began to produce a tilled tractor "Universal", which became the first domestic tractor exported abroad.