2018 GGHS Team 10

Goryeo

Goryeo (고려; 高麗; [ko.ɾjʌ]; 918–1392), also spelled as Koryŏ, was a Korean kingdom established in 918 by King Taejo. This kingdom later gave name to the modern exonym "Korea". It united the Later Three Kingdoms in 936 and ruled most of the Korean Peninsula until it was removed by the founder of the Joseon, Yi Seong-gye, in 1392. Goryeo expanded Korea's borders to present-day Wonsan in the northeast (936–943), the Yalu River (993) and finally almost the whole of the Korean Peninsula (1374). By the late 13th century, after nearly 30 years of warfare with the Mongols of the Yuan dynasty, Goryeo lost much of its power but retained nominal control. Although King Gongmin managed to free his kingdom from the Yuan overlordship in the mid-14th century, General Yi Seonggye revolted and overthrew King Gongyang in 1392, establishing himself as Taejo of Joseon. Gongyang was killed in 1394.