Goryeo

Goryeo

Goryeo was founded by Jumong in 37BC. By now China had been taken over by the Jurchen who frequently tried to invade and fight the Koreans. they were defeated by the Mongols who took over china and invaded Korea in 1231. in 1258 the royal family of Goryeo surrendered to the mongrols who allowed them to continue ruling as long as they followed their orders. during the 13th century Korea was over taken by Chinese philosophy and neo Confucianism. the book the history of the three kingdoms was written by Kim Bu Sik in 1392. the king ordered his general Yi Seong Gye to lead an army against china. however the general took charge of the army and turned them on to the king himself and then became king of Goryeo.

http://www.localhistories.org/korea.html