According to historical records, at that time, on the long East-West overland trade routes engaged in caravan trafficking trade, there were European merchants, merchants in West Asia, Central Asia and Chinese merchants. European and Central and West Asian merchants generally carried a large amount of gold and silver, jewelry, medicines, exotic birds and beasts, spices, bamboo cloth and other commodities to China or sold along the way. What they bought were mainly Chinese goods such as satin pieces, embroidered colors, gold brocade, silk, tea, porcelain, medicinal materials and so on. The large number of foreign merchants and caravans who came to China in the Yuan Dynasty has been confirmed in foreign historical materials. In the Travels of Marco Polo, it is written at several points that "countless merchants" and "a large number of merchants" came and went from the outer city of Dadu in the Yuan Dynasty. "There were many hotels and large inns for camel caravans... Passengers of different races are put up in designated hotels separated from each other. Both for different races, no doubt for foreign merchants. The Trade Guide also states that "... Hanbali is the capital city with the most commerce. Merchants from all over the world converge here and department stores converge here ".
