Meanwhile, many Muslims came to China as they undertook seaborne trade in the Tang dynasty and after. Muslim traders concentrated themselves in cities, from Guangzhou in the south through Quan- zhou, Nanjing, Jinan, and Tianjin. A number of impressive mosques were built.
而自海上貿易來華的，唐、宋元、明歷代都有不少，多數聚居海口大埠，廣州、泉州、南京、濟南、天津，由南而北，也形成回族聚落，建有壯觀的清真寺。