The Story of Imperial China #2: the Tang and the Song Dynasties

Honestly，although having a rich culture. The Song was actually the century of humiliation of China. In the 12th century, the Jurchen people invaded the song and captured their city Kaifeng. The song ounce flight the Liao to get the 16 prefectures back but they were easily repelled. The Jurchen emperors even ounce made a rule with the song emperors to call themselves nephew emperor and call the Jurchens father emperor.