Introduction to the old site of the founding meeting of Xinmin Society: It is located in Liujiataizi, Rongwan Town, Changsha City (now Xinmin Community). The Xinmin Society was a revolutionary group organized by Mao Zedong, Cai Hesen, He Shuheng and others during the May Fourth Movement. The old site was originally Cai Hesen's residence in Changsha from 1917 to 1920, which was destroyed by the war. It was rebuilt according to its original appearance in 1986. It covers an area of about 500 square meters and faces south. It has a wooden structure and a blue-tiled bungalow. It has three rooms in width and one room in depth. It has a main room, a main room, a wing room, and miscellaneous rooms. The outer ring of the house is made of bamboo-woven courtyard walls, with a vegetable patch on the left, a court gate and a pond in front.