A chain of small volcanic islands between Yaku and Amami.
The Japanese sources of the time call the whole southern chain Kikaigashima, the edge of the world. No lord is known on any of them for 1200.
Who holds it
- Name
- not known for 1 January 1200
- Title
- No lord known: outside any government a source shows, a frontier of the Satsuma coast
- Confidence
- low
No source names a chief or an officer for 1200; the evidence is archaeology and a few Japanese notices of 1187 and 1188 (see the Ryukyu realm record, Ryukyu).
Overlord
none known; the court's title over Tane, Yaku and Tokara is a claim in name only (Kyoto court)
How things stand that morning
Outside any government shown by a source; a frontier of the Satsuma coast.
Where the sources disagree
Evidence: The campaign board entry and recollection; no province-level source for 1200 was reachable.
"The campaign board" is OMNIA's working map. These notes record where its earlier claims were checked against the sources.
On the map: Drawn from the modern units round the places named. These islands were never a province of Japan: the group is a convenience of the map, not a division of 1200, and the edges follow the units.
Primary sources for Ryukyu
Chronicles, registers, sagas and inscriptions written in or near 1200 that cover this entry. Each has its own page with editions, translations and where to read it.
- History of the Song, the chapters on Xia and on foreign states, Toqto'a (脫脫) and the Yuan history office (1343 to 1345). The Song court's accounts of its neighbours, each arranged as an annal of embassies and wars. Read online
- Description of the Foreign Peoples (Chau Ju-kua), Zhao Rukuo (趙汝适) (about 1225, while superintendent of maritime trade at Quanzhou). The Song customs officer's survey of the overseas world, compiled from merchants and from Zhou Qufei, a generation after 1200 but describing trade routes that were the same in 1200. Read online
Sources and studies
- OMNIA kja regional brief (KJA_BRIEF.md), the campaign's dated traps and realm table
- OMNIA board notes and places for area kjw (starting lead only, checked against the sources)
Last revised 4 November 2026. Published 4 November 2026. Suggest a correction on the OMNIA Discord.