The widow of Japan’s Emperor Chuai rules as Empress Jingo following her hiusband's death in 209.

The legend of Jingū's invasion of the Korean peninsula is based on the traditional Japanese interpretation of the Kwanggeto Stele found in Manchuria, which proclaimed Goguryeo's dominion over Manchuria and the northern part of Korea.

Closer examination has revealed that this traditional interpretation was based on conjecture, since several critical letters of the text are missing, and in context would correlate more with Goguryeo's immediate southern neighbors, Silla and Baekje.

Baekje had very close relations with Japan, including exchanges between the two courts, and it was a primary conduit of continental culture to Japan.