The first population census of the USSR in 1926 listed 176 distinct nationalities. Eliminating excessive detail (e.g., four ethnic groups for Jews and five ethnic groups for Georgians) and omitting very small ethnic groups, the list was condensed into 69 nationalities. These 69 nationalities lived in 45 nationally delimited territories, including 16 Union-level republics (SSR) for the major nationalities, 23 autonomous regions (18 ASSR and 5 autonomous oblasts) for other nationalities within the Russian SFSR, and 6 autonomous regions within other Union-level republics (one in Uzbek SSR, one in Azerbaijan SSR, one in Tajik SSR, and three in Georgian SSR).