L. Worden, Robert (1994). "Kamakura and Muromachi Periods, 1185–1573, Economic and Cultural Developments". A Country Study: Japan. Federal Research Division, Library of Congress. Archived from the original on 6 April 2007. Retrieved 2007-04-06. Yoshimitsu, in 1404, accepted the "King of Japan" title in his willingness to improve relations with China and to rid Japan of the wako threat, thus establishing trade with China. This was considered as tribute by the Chinese but the Japanese saw it as profitable trade. This relationship lasted for about 50 years. (see also Sinocentrism).
L. Worden, Robert (1994). "Kamakura and Muromachi Periods, 1185–1573, Economic and Cultural Developments". A Country Study: Japan. Federal Research Division, Library of Congress. Archived from the original on 6 April 2007. Retrieved 2007-04-06. Yoshimitsu, in 1404, accepted the "King of Japan" title in his willingness to improve relations with China and to rid Japan of the wako threat, thus establishing trade with China. This was considered as tribute by the Chinese but the Japanese saw it as profitable trade. This relationship lasted for about 50 years. (see also Sinocentrism).