Yelang

Yelang (Chinese: 夜郎; pinyin: Yèláng), initially known as Zangke (Chinese: 牂柯), was an ancient political entity first described in the 3rd century BC that was centered in what is now western Guizhou province, China. Estimated to have been active for over 200 years, it was an alliance of tribes, rather than a conventional state.