NOT KNOWN FACTUAL STATEMENTS ABOUT KOREA

Goryeo was invaded by the Mongols in seven main campaigns through the 1230s right until the 1270s, but was never conquered.[117] Exhausted right after a long time of fighting, Goryeo despatched its crown prince towards the Yuan funds to swear allegiance to your Mongols; Kublai Khan recognized, and married one of his daughters to the Korean crown pr