Samguk sagi (History of the Three Kingdoms) states that Gojumong, who founded Goguryeo in 37 B.C.E., was originally from Buyeo. Goguryeo prospered greatly through victorious wars in areas close to ...
The Silla-Tang forces then attacked Goguryeo, once the most powerful Kingdom in Northeast Asia. However, Goguryeo had depleted its resources in two large-scale wars against the two dynasties of China, ...