Guangzhou has a long history of exchanges with the outside world. In the Qin and Han Dynasties period (BC 226 - 220 AD), Guangzhou as the ancient "Marine Silk Road" of Hong Kong origin, the frequent exchanges with overseas. China's silk, porcelain, iron tools, coins, paper, gold, silver, and so on to Guangzhou for the station to start overseas, in exchange for jewelry, incense drugs, ivory, rhino horn, and then in Guangzhou to become the world's most famous trade Chittagong. To the Yuan Dynasty (AD 1206 - 1368), Guangzhou is the world's trade with the countries and regions have more than 140. To the Ming Dynasty (AD 1368 - 1644), Guangzhou will be the "Export commodities trade fair". To the Qing Dynasty (1757), for a period of the Qing government to implement "A trade", Guangzhou became the only foreign Tongshangkouan, foreign exchanges become more frequent, then the famous "Guangzhou 13" is devoted to foreign trade division of the Business firm. Foreign trade also contributed to the prosperity of Guangzhou and overseas cultural exchanges.