Mapping of the Maritime Boundaries at Japan’s Northern Edge in the 19th Century

Edward Kieran Boyle

Research output: Chapter in Book/Report/Conference proceedingEntry for encyclopedia/dictionary


Japan defined its northern edge against Russia over the course of the 19th century. In earlier periods, an area and people known as Ezo marked the northern edge of Japanese state and society, but expansion of both the Russian and Japanese polities brought them into direct contact with one another around the Sea of Okhotsk. Perceptions of foreign threat accelerated Japan’s efforts to map and know Ezo, and shifted understandings of Japan’s northern edge outwards. Maritime routes defined this new northern edge of Japan, and their traces on the map tied distant locales to the national body.

Maritime space was therefore crucial to this expansion in conceptions of the nation, through which the maritime boundary of Japan came to incorporate much of the Ezo region. The mid-century opening of Japan transformed this maritime boundary, which was shaped in the latter half of the 19th century by Japan’s particular situation, even as global and universal concepts were drawn upon to justify its operation. Japan’s participation within international and inter-imperial society conferred upon it the ability to appeal to such concepts for legitimacy, a participation made possible by the state’s efforts to satisfactorily map and administer the boundaries of Japan’s northern edge.
Original languageEnglish
Title of host publicationOxford Research Encyclopedia of Asian History
PublisherOxford University Press
Publication statusPublished - Jul 1 2020


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