NOT KNOWN FACTUAL STATEMENTS ABOUT KOREA

Goryeo was invaded because of the Mongols in 7 important strategies in the 1230s until finally the 1270s, but was under no circumstances conquered.[117] Fatigued after a long time of preventing, Goryeo despatched its crown prince to your Yuan cash to swear allegiance to the Mongols; Kublai Khan accepted, and married certainly one of his daughters f