5 SIMPLE TECHNIQUES FOR KOREA

Goryeo was invaded from the Mongols in seven key strategies within the 1230s until the 1270s, but was in no way conquered.[117] Exhausted soon after many years of battling, Goryeo despatched its crown prince to the Yuan capital to swear allegiance towards the Mongols; Kublai Khan acknowledged, and married one among his daughters to your Korean crow