Which capital's 1868 name change meant 'eastern' to match a move?

The Shogun's City

Edo began as a fishing settlement on marshy tidal flats where the Sumida River met Tokyo Bay. In 1457, a samurai named Ōta Dōkan built a castle on high ground overlooking the estuary, and the village around it grew slowly for a century. Then in 1603, Tokugawa Ieyasu — the warlord who had unified Japan after decades of civil war — chose Edo as the seat of his shogunate, the military government that would rule in the emperor's name. Kyoto remained the imperial capital, home to the emperor and his court, but real power now resided 300 miles east in Edo.

Within decades the city exploded in size: daimyō lords were required to maintain mansions there and spend alternate years in residence, merchants flocked to supply the new ruling class, and laborers poured in to build canals, bridges, and warehouses. By 1721, Edo's population reached one million, making it the largest city on earth. This sankin-kōtai system of alternate attendance emptied provincial treasuries on travel costs and luxury goods, ensuring that no daimyō could accumulate enough wealth to challenge Tokugawa supremacy. The policy transformed Edo into a consumption hub where silk merchants, sword makers, and sake brewers prospered.

The Castle at the Center

Edo Castle sat at the physical and symbolic heart of the shogun's domain, a sprawling fortress complex encircled by concentric moats and stone walls. The innermost keep — a five-story tower sheathed in white plaster — burned in 1657 and was never rebuilt, but the palace grounds alone covered more than 500 acres. Samurai districts radiated outward in strict social tiers: the closer to the castle, the higher the rank. Beyond them lay merchant quarters, craft districts, and pleasure zones like Yoshiwara, the licensed entertainment district where theater, tea houses, and courtesans flourished under shogunate regulation.

The city's street plan reflected Tokugawa control: wide avenues allowed troop movements, canals facilitated rice shipments, and gates at key intersections could be closed to contain unrest. Edo became a stage-set for hierarchy, every neighborhood announcing its place in the Tokugawa order. The Great Fire of Meireki in 1657 killed over 100,000 people and destroyed two-thirds of the city, yet reconstruction followed the same rigid patterns. Firefighting brigades called hikeshi became civic heroes, and fireproof storehouses called kura protected merchant wealth. Despite frequent earthquakes and conflagrations, Edo remained Japan's unchallenged center of power for 265 years.

The Emperor's Return

In 1853, American commodore Matthew Perry sailed into Edo Bay with four warships and demanded that Japan open its ports to foreign trade. The shogunate's inability to resist exposed its weakness, and over the next fifteen years samurai from southern domains — particularly Satsuma and Chōshū — conspired to overthrow the Tokugawa regime and restore the emperor to power. They rallied under the slogan sonnō jōi: revere the emperor, expel the barbarians. The Boshin War erupted in 1868 as imperial forces marched on Edo, but the last shogun Tokugawa Yoshinobu surrendered the city peacefully to prevent its destruction.

The fifteen-year-old Emperor Meiji moved from Kyoto to Edo in October 1868, and the city was renamed Tokyo — literally "Eastern Capital." The imperial palace rose within the old castle grounds, where it remains today. Former samurai estates became government ministries, Western-style brick buildings replaced wooden shops in Ginza, and in 1872 Japan's first railway linked Tokyo to the port of Yokohama. The transformation announced Japan's determination to match Western industrial and military power while maintaining imperial continuity.

Modern Metropolis

Tokyo's rise as a modern capital faced catastrophic setbacks. The Great Kantō Earthquake of 1923 killed 140,000 people and leveled much of the city through fire and structural collapse. American firebombing in March 1945 incinerated sixteen square miles and killed over 100,000 in a single night, reducing the capital to ash and rubble. Yet Tokyo rebuilt each time, emerging from World War II's devastation to host the 1964 Olympics, a global debut that showcased bullet trains, modern highways, and architectural ambition. The Shinkansen rail system, launched that year, epitomized Japan's postwar technological prowess.

Today Tokyo anchors the world's largest metropolitan economy, home to 37 million people across its greater urban area. The imperial palace still occupies Edo Castle's footprint, surrounded by skyscrapers in Marunouchi and Otemachi where daimyō mansions once stood. Neighborhoods preserve Edo-era names — Nihonbashi, Asakusa, Ueno — even as the city constantly reinvents itself. From the neon density of Shibuya to the electronics bazaars of Akihabara, Tokyo layers centuries of history beneath relentless modernity, a city where 400-year-old shrines share blocks with glass towers, still answering to its role as Japan's center of power.