Edo
Edo was the capital city of Japan under the Tokugawa shogunate from 1603 to 1868, transforming from a modest fishing village into a sprawling metropolis that functioned as the political, economic, and cultural hub of the realm.[1][2]Established as the shogun's base by Tokugawa Ieyasu following his victory at the Battle of Sekigahara, Edo housed the central administration that enforced a feudal order through mechanisms like the alternate attendance system, compelling daimyo to reside periodically in the city, which bolstered shogunal authority and stimulated urban commerce.[2][3]
By the early 18th century, its population exceeded one million, making it the world's largest city at the time, sustained by rice imports, merchant networks, and infrastructure like canals and bridges, though recurrent great fires—such as the devastating Meireki fire of 1657—necessitated repeated reconstruction and highlighted vulnerabilities in wooden architecture.[4][5]
The city's defining era fostered internal peace after centuries of civil strife, enabling economic expansion, the rise of a vibrant merchant class, and cultural flourishing in arts like woodblock prints and theater, yet rigid class structures and sakoku isolationism curtailed innovation and external engagement, contributing to pressures that culminated in the Meiji Restoration and Edo's renaming to Tokyo in 1868.[3][5]
Geography and Setting
Location and Topography
Edo was located on the southern edge of the Kantō Plain in eastern Japan, at the head of Edo Bay (present-day Tokyo Bay), in what is now central Tokyo.[6] The city occupied a predominantly flat alluvial terrain formed by river deltas and marshes, part of the broader Musashino Terrace extending westward from the bay.[7] This low-lying coastal plain, intersected by rivers such as the Sumida, which ran north-south through the urban core, supported extensive waterway networks but rendered much of the area vulnerable to seasonal flooding.[6] The topography featured subtle elevation variations, with the western Yamanote highlands rising 10 to 20 meters above the eastern Shitamachi lowlands near the coast, creating basins, ridges, and gullies formed by rivers like the Shibuya and Meguro.[7] Edo Castle, the administrative center, was constructed on a modest plateau—classified as a flatland castle yet utilizing a former cape for defensive height—amid this otherwise level landscape lacking natural barriers.[8] [6] These height differences shaped urban development, as higher grounds accommodated samurai residences and gardens, while lowlands housed denser merchant and artisan districts prone to inundation and fire.[7] Hill crests provided vantage points, including views of Mount Fuji on clear days from the west.[6]