During the Yuan Dynasty, the unblocked Silk Road witnessed the prosperity of economic exchange of various levels on the Eurasian continent. As a hub of international trade between the East and the West, or a region closely linked with international trade, a batch of trading centers featuring ethnical commodity markets and supplies distributing centers was formed and expanded. Almost all Chinese and foreign historical records of Yuan Dynasty describe the undisputed position of Yuan Dadu as the international trade center of the East. Here "merchants from all countries converge and department stores converge". The Travels of Marco Polo once introduced the prosperity of international trade in Yuan Dadu in a chapter: "All the rarest and most precious things in the world can be found in this city... There's more stuff for sale here than anywhere else." Another important Silk Road town in Yuan China was Kehuhar (Kashgar), where textiles were "sold by domestic merchants all over the world". Suzhou in Hexi Corridor, near here "a kind of rhubarb of very good quality from the mountains. Merchants from other parts of the world come here and sell their products all over the world." In addition, don't lose eight Li, fire state and so on.