NOT KNOWN FACTUAL STATEMENTS ABOUT KOREA

Goryeo was invaded from the Mongols in seven main strategies with the 1230s right until the 1270s, but was never conquered.[117] Exhausted following a long time of combating, Goryeo sent its crown prince on the Yuan funds to swear allegiance to your Mongols; Kublai Khan recognized, and married amongst his daughters into the Korean crown prince,[117