Song dynasty
The Song dynasty (Chinese: 宋朝; pinyin: Sòng cháo, [suŋ˥˧ tʂʰau˧˥]) was an era of Chinese history that began in 960 and continued until 1279. It succeeded the Five Dynasties and Ten Kingdoms period, and was followed by the Yuan dynasty. It was the first government in world history to issue banknotes or true paper money nationally, and the first Chinese government to establish a permanent standing navy. This dynasty also saw the first known use of gunpowder, as well as the first discernment of true north using a compass.
The Song dynasty is divided into two distinct periods, Northern and Southern. During the Northern Song (Chinese: 北宋, 960–1127), the Song capital was in the northern city of Bianjing (now Kaifeng) and the dynasty controlled most of China proper. The Southern Song (Chinese: 南宋, 1127–1279) refers to the period after the Song lost control of northern China to the Jurchen Jin dynasty in the Jin–Song Wars. During this time, the Song court retreated south of the Yangtze and established their capital at Lin'an (now Hangzhou). Although the Song dynasty had lost control of the traditional birthplace of Chinese civilization along the Yellow River, the Song economy was still strong, as the Southern Song Empire contained 60 percent of China's population and a majority of the most productive agricultural land. The Southern Song dynasty considerably bolstered its naval strength to defend its waters and land borders and to conduct maritime missions abroad.