1926 Soviet census

The 1926 Soviet census (Russian: Всесоюзная перепись населения, All-Union census), conducted in December 1926, was the first comprehensive all-Union census in the Soviet Union. It served as a critical instrument in the nation-building efforts of the USSR, furnishing the government with vital ethnographic data. This census played a significant role in the societal shift from the Imperial Russian era to the Soviet period. The methodologies employed by ethnographers in defining individual ethnicity (narodnost), particularly in creating the "List of Ethnicities of the USSR" and delineating borders in ethnically mixed regions, profoundly shaped Soviet policies. Ethnographers, statisticians, and linguists not only designed questionnaires and ethnicity lists but also aimed to actively reshape identities according to Marxism–Leninism. As Anastas Mikoyan stated, the Soviet Union was engaged in "creating and organising new nations".