Today Central Asians are formed from mixture of various peoples, such as Mongols, Turks, Iranians. The Mongol conquest of Central Asia in the 13th century resulted in the mass killings of the Iranian-speaking people and Indo-Europeans population of the region, their culture and languages being superseded by that of the Mongolian-Turkic peoples. The remaining surviving population intermarried with invaders. Genetic shows a mixture of East Asian and Caucasian ancestry in all Central Asian people.