Kango boeki

• Japanese/Chinese: 勘合貿易 (kangou boueki / kanhe maoyi)

The kangô bôeki system, or tally trade, was a system under which Muromachi Japan and Ming Dynasty China engaged in official trade. Tallies (J: kangô) held by Japanese merchants certified them to Chinese port officials as licensed merchants or as official Japanese tribute missions, distinguishing them, therefore, from smugglers or pirates.

The system came into use in 1383, in an effort to control foreign tribute trade. Each tally, or certificate, had the characters "Nihon" (C: Riben, 日本) written on it, and was then divided in half, with the Chinese port office (shibosi) keeping one half, and a licensed foreign ship the other half. In theory, a merchant's half of the form would have to line up properly with the port officials' half in order to be regarded as genuine. These were often faked, however.

New sets of tallies were issued by some Ming Emperors, but not all, in conjunction with their ascension to the throne; over the course of the period of Ming-Ashikaga relations, this occurred six times, at the ascensions of the Yongle, Xuande, Jingtai, Chenghua, Hongzhi and Zhengde Emperors. Each time, one hundred tallies were prepared, and numbered sequentially. Japanese ships arriving in China were expected to carry a number of the forms, arranged sequentially beginning with one; each of these borne by the Japanese side would bear the character hon 本, of Nihon 日本. Upon arriving at Zhejiang and Beijing, the tallies would be checked against the port officials' registers, and the cargoes and inventory lists checked as well, along with various other figures such as the number of ships and number of crew members, to make sure these were in line with proper tributary protocol.

The first tally ship was sent from Japan in 1404, and the last in 1547. Over the course of that period, a total of 84 Japanese trading vessels visited China on formal tally trade journeys, spread out across seventeen individual trips. The shogunate (and the Japanese merchants) may have wished to maximize the amount of trade, but China placed regulations on the number of ships, and how often they could visit. For a certain span in the latter half of this period of trade, Japanese vessels were officially limited to coming to China once every ten years, with no more than three ships, and no more than 300 men per ship. In practice, 150-200 of the men on each ship were merchants, with the crew comprising the remainder.

Originally, tally trade ships typically departed Japan from Hyôgo-no-tsu (modern-day Kobe). Rather than building new ships specifically for the tally trade, the shogunate commissioned ships from Inland Sea merchants, and hired captains, helmsmen, and sailors from among that same group. A typical pattern was for the ships to depart from Hyôgo, pick up various goods at various Inland Sea ports, make their way to Hakata where they would formally assemble as a fleet, and then reassemble at Hirado or the Gotô Islands to wait for favorable winds to make the sea crossing. The crossing was typically made in spring, though sometimes autumn winds were employed; the ships made landfall near Ningbo. While the crews were set up with lodging at the Zhejiang shibosi (port office), their ships, cargoes, and documents were inspected. In the early portion of this period of tally trade, the chief envoy would then journey to Beijing, along with much of the gifts/goods, and samples of some of the larger bulk goods, such as sappanwood, copper, and pepper, which would then be sent along in their full amounts shortly afterwards. In the 15th century, those who traveled onward to Beijing were generally limited to around 300-350 people, but in the early 16th century, this was further reduced, and only about 50 people were permitted to enter the capital.

In later times, these goods would not be sent to Beijing, but instead the more nearby Nanjing.

The system finally came to an end in 1551. The Ming Court had been demanding for some years that "Japan" (Ôuchi imposter envoys dominated contact with China, so it was the Ôuchi and not the shogunate the Ming Court was actually in communication with) turn over the offenders in the 1523 Ningpo Incident (an incident in which Ôuchi and Hosokawa clan ships clashed in Ningpo harbor), and turn in all the tallies, but to no avail. Diplomatic discussion between the Ming Court, and the Ôuchi (pretending to represent the shogunate) then came to loggerheads for a time, until in 1551, Sue Harukata rose up against his lord and took control of the Ôuchi clan, marking the end of official relations between Ming China and Muromachi Japan.

References

• Hashimoto Yû. "The Information Strategy of Imposter Envoys from Northern Kyushu to Choson Korea in the Fifteenth and Sixteenth Centuries." in Angela Schottenhammer (ed.) The East Asian Mediterranean: Maritime Crossroads of Culture, Commerce and Human Migration. Harrassowitz Verlag, 2008. pp289-315.
• Tanaka Takeo, "Japan's Relations with Overseas Countries," in John Whitney Hall and Toyoda Takeshi (eds.) Japan in the Muromachi Age, Cornell University East Asia Program (2001), 159-178.