Yamaguchi Prefecture
Yamaguchi Prefecture is Japan’s westernmost prefecture on Honshu, bordered by the Sea of Japan to the north and the Seto Inland Sea to the south.
Shimonoseki: A city at Honshu’s western tip, separated from Kyushu by the Kanmon Strait. The prefecture’s largest city controls the strait linking the Sea of Japan and Seto Inland Sea.
Chōshū Domain: A feudal domain in western Honshu, ruled by the Mōri clan during the Edo period. Its territory largely corresponds to modern Yamaguchi Prefecture.
Seto Inland Sea: A sea between Honshu, Shikoku, and Kyushu, connected to the Pacific by narrow straits. Its southern coastline supports ports, shipping, and coastal industry.
Itō Hirobumi: A Japanese statesman who became the first prime minister of Japan. Born in Chōshū, he helped build the Meiji-era state.
Honshu: The largest and most populous island of Japan, home to Tokyo and many major cities. Yamaguchi occupies Honshu’s westernmost end.
Hagi: A historic castle town on the Sea of Japan coast in Yamaguchi Prefecture. Its preserved streets and samurai heritage make it a defining historic town.
Meiji Restoration: The political transformation beginning in 1868 that ended the Tokugawa shogunate and established imperial rule. Chōshū leaders helped drive the restoration that reshaped Japan.
Kanmon Strait: A narrow waterway separating Honshu and Kyushu, between Shimonoseki and Kitakyushu. The strait makes Shimonoseki a major transport and shipping gateway.
Yamagata Aritomo: A Japanese military and political leader who served twice as prime minister. His Chōshū origins connect the prefecture to the formation of Japan’s modern army.
Kyushu: The southwesternmost of Japan’s four main islands. The Kanmon Strait separates it from Yamaguchi’s western coast.