20th century in Tatarstan

autonomous soviet socialist republic of a union republic of the Soviet Union

Mass starvation in the Tatar ASSR

referendum on the transformation of Tatarstan into a sovereign state

conflict during the Russian Civil War

1990s hostage-taking incident

treaty signed in 1992 regulating the inner composition of Russia; the text was included into Russian Constiution and all regions became federal subjects

aviation accident

former canton in the Soviet Union

organisation in the Muslim republics

thumb|Гипсы-1 ледяные сталогмиты.jpg The Gipsy-1 () is a system of 2680 m long interconnected adits in Kamsko-Ustyinsky District, Tatarstan, Russia, where gypsum was mined in 1930-1950s. It is the only mine in the area that can be visited by outdoor tourists, since other similar mines have been buried or flooded.