Tatar nationalism is the belief that Tatars should constitute an independent nation. Finding historical basis in the Khanate of Kazan and Russian–Tatar enmities, Tatar nationalism has often synthesised Islam as a national aspect. Tatar nationalism has historically manifested itself as the Idel-Ural State, as well as the Declaration of State Sovereignty of Tatarstan and the country's period of de facto independence from Russia in the early 1990s.