Researches on Manchu Origins, also known as Manzhou Yuanliu Kao, is an important history book published by the Qing dynasty government in 1777.

[1] The Manzhou Yuanliu Kao also bolstered Qianlong's conception of the Manchu people as a wu, or martial race.

[2] It consists of 4 parts: Manchu tribes, territory, topography (mountains and rivers), and culture.

[4] Manzhou Yuanliu Kao was compiled from the perspective of the Manchu ruling class, breaking away from the historical record of librarians by the Han-centric view.

According to the legend, three heavenly maidens, Enggulen, Jenggulen, and Fekulen, were bathing at a lake called Bulhūri Omo near the Paektu Mountain.