Cathay "Pratica della mercatura", a guide about trade in China, a country he called "Cathay", noting the size of Khanbaliq (modern Beijing) and how merchants could exchange silver for Chinese paper money that could be used to buy luxury items such as silk. Words related to Khitay are still used in many Turkic and Slavic languages to refer to China. However, its use by Turkic speakers within China, such as the Uyghurs, is considered pejorative by the Chinese authority who had tried to ban it. As European and Arab travelers started reaching the Mongol Empire, they described the Mongol-controlled Northern China
Loyalty to the Country and remains a popular element of Chinese folklore today. Loyalty to the Country "Loyalty to the Country" () is a Chinese patriotic song paying tribute to the Han general Yue Fei, a popular Chinese folk hero. The name of the song refers to a phrase tattooed on the back of Yue Fei, and a mantra with which he is commonly identified. The lyrics of the song allude to the Jin–Song Wars, in which Yue Fei played a pivotal role. The title Loyalty to the Country refers to a popular semi-historical legend surrounding Yue Fei. According to these accounts, Yue Fei