During the Yuan-Ming Dynasties,Longquan porcelains were the major type of commodities traded to Africa.Related remains were widely discovered in North Africa adjacent to the Red Sea and East Africa near the Indian Ocean,especially in port-cities during the Medieval period and nearby palaces,mosques,high-status residential compartments,column tombs,and dump areas in inland cities.It is noteworthy that Longquan porcelains during the Yuan period were more frequently found and included more varieties than those Longquan porcelains in the Ming period.The major types were food utensils including bowls,plates,and jars.In addition,porcelains used for surface decoration on architectures for palaces,high-status residential compartments,mosques,and column tombs as well as indoors furnishings were also discovered.Archaeological evidence also proves that Longquan porcelains unearthed from Africa covering the time-frame from the Northern Song to the Middle Ming Dynasty and were the majority among all exported porcelains from China.The development of blue-and-white porcelains in the Ming Dynasty led to the replacement of Longquan porcelains by the blue-and-white porcelains manufactured by southern China kilns such as Jiangxi Jingdezhen and Fujian.Henceforth,Longquan porcelains disappeared in Africa after the Middle Ming Dynasty.