Уфимская губерния
Tatarstan is located in the center of the East European Plain, between the Volga and the Kama Rivers, stretching east towards the Ural Mountains. It was originally established as the Tatar ASSR within the Russian SFSR on May 27, 1920 from Kazansky, Chistopolsky, Mamadyshsky, Sviyazhsky, Tetyushinsky, Laishevsky, and Spassky Uyezds of the former Kazan Governorate, Yelabuzhsky Uyezd of Ufa Governorate, as well as the part of Simbirsk, Samara, and Vyatka Governorates. In 1922, Yelabuga with environs was transferred to the Tatar ASSR from Vyatka Governorate.