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Tsushima Province対馬国
Province of Japan
7th century–1871
Map of Japanese provinces (1868) with Tsushima Province highlighted
Capital	Shimoagata District
History
• Established	7th century
• Disestablished	1871
Preceded by Succeeded by Shimoagata kuni no miyatsuko Kamiagata kuni no miyatsuko Izuhara Prefecture
Today part of	Tsushima, Nagasaki

Tsushima Province (対馬国, Tsushima-no kuni) was an old province of Japan on Tsushima Island which occupied the area corresponding to modern-day Tsushima, Nagasaki. It was sometimes called Taishū (対州) .

Political history

The origin of Tsushima Province is unclear.

It is often identified as the country Tsukaikoku (對海国) mentioned in the Wajinden.

It is possible that Tsushima was recognized as a province of the Yamato Court in the 5th century. Under the Ritsuryō system, Tsushima formally became a province.

Tsushima Province has been a strategic area that took a major role in the national defense against possible invasions from the continent and in trade with Korea. After Japan was defeated by Tang dynasty at the Battle of Baekgang in 663, Kaneda Castle was constructed on this island.

Tsushima Province had been controlled by the Tsushima no Kuni no miyatsuko until the Heian period. This clan was later replaced by the Abiru clan. The Sō clan rose to power around the middle 13th century and seized control of the entire island in the late 15th century. During the Edo period, Tsushima Province was dominated by the Tsushima-Fuchū Domain (Izuhara domain) of the So clan. It was put in charge of diplomacy and monopolized trade with the Joseon dynasty of Korea.

As a result of the abolition of the han system, the Tsushima Fuchu domain became Izuhara Prefecture in 1871. In the same year, Izuhara Prefecture was merged into Imari Prefecture, which was renamed Saga Prefecture in 1872. Tsushima was transferred to Nagasaki Prefecture in 1872. At the same time, the province continued to exist for some purposes. For example, Tsushima is explicitly recognized in treaties in 1894 (a) between Japan and the United States and (b) between Japan and the United Kingdom.

Historical districts

Throughout history, Tsushima Province consisted of two districts:

• Nagasaki Prefecture
  • Kamiagata District (上県郡)
  • Shimoagata District (下県郡)

The capital of Tsushima Province was located at Izuhara. In the modern local municipality system, they were divided into Kamiagata and Shimoagata Districts respectively, and were subsequently merged into the city of Tsushima today.

See also

• Tsushima-Fuchū Domain

Notes

1. Nussbaum, Louis-Frédéric. (2005). "Provinces and prefectures" in Japan Encyclopedia, p. 780, p. 780, at Google Books.
2. US Department of State. (1906). A digest of international law as embodied in diplomatic discussions, treaties and other international agreements (John Bassett Moore, ed.), Vol. 5, p. 759.

References

• Nussbaum, Louis-Frédéric and Käthe Roth. (2005). Japan encyclopedia. Cambridge: Harvard University Press. ISBN 978-0-674-01753-5; OCLC 58053128
• Papinot, Edmond. (1910). Historical and Geographic Dictionary of Japan. Tokyo: Librarie Sansaisha. OCLC 77691250

External links

Media related to Tsushima Province at Wikimedia Commons

• Murdoch's map of provinces, 1903
• (in Japanese) Tsuikai Kingdom by 魏志倭人
• (in Japanese) Tsushima in the Wa people chronicles

• States and territories established in the 7th century
• States and territories disestablished in 1871
• Former provinces of Japan
• Tsushima Island