The Song Dynasty was the ruling dynasty in China between 960 and 1279 CE. Notable advances in civil engineering, nautics, and metallurgy were made in Song China. These advances, along with the introduction of paper-printed money, helped revolutionize and sustain the economy of the Song Dynasty. Intellectuals such as Shen Kuo (1031-1095) and Su Song (1020-1101) are responsible for many of the advances during this time.