East Asia with the Chinese emperor at the top is called the Saku-hō system (冊封体制, Sakuhō taisei, in Japanese). It is believed that the purpose of this was...

Zhōnghuá cháogòng tǐxì), or Cefeng system (simplified Chinese: 册封体制; traditional Chinese: 冊封體制; pinyin: Cèfēng tǐzhì) at its height was a network of loose...