Korea was once the Roman Empire of Asia. Koreans today claim that they are pure-blooded race. However, the root of Koreans come from Northeast Mongolia and Manchuria, and from the Siberians. The Kaoli tribes, one of the Mongol"s horse-riding tribes moved to the Korean peninsula and were intimidated by the Natives living in Mahahn, Byunhahn, Jinhahn. They shared almost the same culture and langua..