The de-Tatarization of Crimea (Crimean Tatar: Qırımnıñ tatarsızlaştırıluvı; Russian: Детатаризация Крыма, romanized: Detatarizatsiya Kryma; Ukrainian: Детатаризація Криму, romanized: Detataryzatsiya Krymu) was initiated by the Russian Empire and perpetuated by the Soviet Union. Following the Russian Empire's annexation of the Crimean Khanate in 1783, a variety of legal and practical measures were implemented to subjugate the indigenous Crimean Tatars, who are a Turkic ethnic group. This process of "de-Tatarization" manifested in many ways throughout Crimea, intensifying significantly during the Soviet Union's Stalinist era: the Crimean Tatar language was suppressed and supplanted by the Russian language, especially by renaming Crimean toponyms; the government settled Russians and other Slavs in the region and promoted Tatarophobia amongst them, such as by describing Crimean Tatars as traitorous "Mongols" with no authentic connection to the peninsula; and, ultimately, as many as nearly half a million Crimean Tatars were deported in a campaign of ethnic cleansing and cultural genocide. During 1783–1917, nearly 4 million Muslims were forced to emigrate from Crimea, primarily to the Ottoman Empire. Prior to 1783, Crimean Tatars made up 95% of the Crimean population.