Every state are NOT random name Ann-nam: Annam, means Vietnam S. And N. Zhu: got idea form one of Chinese dynasty (Zhou) Khitan state: It was one of tribes of east Asia Sushen: It was one of tribes of Manchuria Wai state: Wakoku (Ancient japan) Namguk: In Korean, ‘남국’, means south country Joseon: Joseon dynasty, one of country of Korean history