Who shot the earliest documentary photography collection in China and what was it about?

1924, the last emperor of the Qing Dynasty, Puyi, was forced to move out of the Forbidden City, marking the complete withdrawal of China's feudal autocracy from the historical stage. Chen Wanli, a photographer from the North Broadcasting Society, recorded this historical event with his camera. 1928, he edited his photos into a book and published it in the 13th Forbidden City, which is the earliest documentary photo collection in China. It embodies Chen Wanli's profound understanding and comprehensive grasp of photography, as he wrote in Xiaoyan:

After the deposed Emperor Puyi left the palace, I selected 84 photos from 100, following the photos taken by the military, police and political circles during the detention, thus making this booklet. I am confident that how many of them can be kept as historical materials in the future.