Language policy
An important aspect of the early campaign for literacy and education was the policy of "indigenization" (korenizatsiya). This policy, which lasted essentially from the mid-1920s to the late 1930s, promoted the development and use of non-Russian languages in the government, the media, and education. Intended to counter the historical practices of Russification, it had as another practical goal assuring native-language education as the quickest way to increase educational levels of future generations. A huge network of so-called "national schools" was established by the 1930s, and this network continued to grow in enrollments throughout the Soviet era. Language policy changed over time, perhaps marked first of all in the government's mandating in 1938 the teaching of Russian as a required "subject" of study in every non-Russian school, and then especially beginning in the latter 1950s a growing conversion of non-Russian schools to Russian as the main medium of instruction.