It is considered one of the Four Great Classical Novels of Chinese literature. It has introduced readers to many of the best-known characters in Chinese literature, such as Wu Song, Lin Chong, Pan Jinlian, Song Jiang and Lu Zhishen. Water Margin is based on the exploits of the outlaw Song Jiang and his 108 companions. The group was active in the Huainan region and surrendered to the Song government in 1121. They were recorded in the historical text History of Song. The name of "Song Jiang" also appeared in the biography of Emperor Huizong of Song. ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????