Ehime Prefecture
prefecture of Japan
Ehime Prefecture (愛媛県, Ehime-ken; Japanese pronunciation: [eꜜ.çi.me, e.çi.meꜜ.keɴ]) is a prefecture of Japan located on the island of Shikoku. Ehime Prefecture has a population of 1,334,841 and a geographic area of 5,676 km2 (2,191 sq mi). Ehime Prefecture borders Kagawa Prefecture to the northeast, Tokushima Prefecture to the east, and Kōchi Prefecture to the southeast. Ehime Prefecture also borders Hiroshima Prefecture for 74 metres (243 ft) on Hyōtanjima.
Matsuyama is the capital and largest city of Ehime Prefecture and the largest city on Shikoku, with other major cities including Imabari, Niihama, and Saijō.
Notable past Ehime residents include three Nobel Prize winners: Kenzaburo Oe (1994 Nobel Prize in Literature), Shuji Nakamura (2014 Nobel Prize in Physics), and Syukuro Manabe (2021 Nobel Prize in Physics).
History
Until the Meiji Restoration, Ehime Prefecture was known as Iyo Province. Since before the Heian period, the area was dominated by fishermen and sailors who played an important role in defending Japan against pirates and Mongolian invasions.
After the Battle of Sekigahara, the Tokugawa shōgun gave the area to his allies, including Katō Yoshiaki who built Matsuyama Castle, forming the basis for the modern city of Matsuyama.
The name Ehime comes from the kuniumi part of the Kojiki where Iyo Province is mythologically named Ehime, "lovely princess".
Begin with the source’s own compact description: “Ehime Prefecture” is prefecture of Japan. The dossier treats that line as a proposition to test through Ehime, Prefecture and prefecture, not as a finished interpretation.
Why this record matters
The phrase “prefecture of Japan” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Sep 20, 2026. The linked authority identifier is Q123376. VIAF identifies the subject as 252908957. The Library of Congress control number is n80022960. Authority coordinates are 33.841, 132.766. 3 of 4 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 1994, 2014 and 2021.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
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- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
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This entry incorporates text from “Ehime Prefecture” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.