NOT KNOWN FACTS ABOUT KOREA

Goryeo was invaded because of the Mongols in 7 significant campaigns through the 1230s right until the 1270s, but was by no means conquered.[117] Fatigued after a long time of preventing, Goryeo despatched its crown prince towards the Yuan money to swear allegiance to your Mongols; Kublai Khan approved, and married certainly one of his daughters in