Republic of Mordovia (Mordovia Republic, Republic of Mordovia, Republic of, shortly: Mordovia (Moksha and Erz Mordovia) – a constituent entity of the Russian Federation, a republic in its composition. It is part of the Volga Federal District, is part of the Volga -Vyatsky economic region. The capital is the city of Saransk. It was formed on January 10, 1930 as the Mordovian Autonomous Region. The Republic since 1934. State languages: Russian and Mordovian (Moksha and Erzya). The Tatar language is also common.