Early Korean settlements developed south of the Han River relatively isolated from the Asian continent. Because of this, the early Korean people were able to develop independently without early involvement with events on the continent, at least for the earlier periods of Korean development.
Around the middle of the third century A.D., the Chinese began to become a serious threat which became a powerful force in unify much of the tribes in the southern part of Korea. Using the Chinese form of the Centralized Government, the tribes began merging into kingdoms.
…
