| This paper relies on a large number of historical data, and strives to more accurate statistics of the number of the Song Dynasty tributary from overseas countries, distinguishing between tributary and private tributary and the tributary events and unfinished tributary events. This paper carding tributary time, diplomatic envoy, tributary road, tributary purpose, reward, knighthood, hospitality etiquette, the diplomatic envoy's action, and correct the historical data which is suspected and mistaken. This paper also analyzes the characteristics of tributary and the causes of the number and frequencies of tributary; finally it dissects the nature of tributary from overseas countries in Song Dynasty. In short, this paper will study tributary of Song Dynasty as a independent and complete object, and preliminarily clear the main context of tributary in Song Dynasty. |