
The image is a blackboard with white text written in Chinese characters. The text reads "The Rising of Mongolian Tribes: The Gradual Development from Clans to Tribes". Below the text, there is a list of Mongolians who were one branch of Dongguan People in ancient Mongolian culture. The list is written in both English and Chinese characters, and it appears to be a historical document. The background of the blackboard is plain and unadorned.
