In 1853, a fleet of four American warships under Commodore Matthew Perry sailed into the bay of Tokyo (then Edo) and presented the reluctant Japanese with the demands of the U.S. government for the opening of diplomatic and commercial relations. The following year Perry returned and first set foot on Japanese soil at Yokohama—then a small fishing village on the mudflats of Tokyo bay.
Two years later New York businessman Townsend Harris became America's first diplomatic representative to Japan. In 1858 he was finally able to negotiate a commercial treaty between the two countries; part of the deal designated four locations—one of them Yokohama—as treaty ports. In 1859 the shogunate created a special settlement in Yokohama for the growing community of merchants, traders, missionaries, and other assorted adventurers drawn to this exotic new land of opportunity.
The foreigners (predominantly Chinese and British, plus a few French, Americans, and Dutch) were confined here to a guarded compound about 5 square km (2 square miles)—placed, in effect, in isolation—but not for long. Within a few short years the shogunal government collapsed, and Japan began to modernize. Western ideas were welcomed, as were Western goods, and the little treaty port became Japan's principal gateway to the outside world. In 1872 Japan's first railway was built, linking Yokohama and Tokyo. In 1889 Yokohama became a city; by then the population had grown to some 120,000. As the city prospered, so did the international community and by the early 1900s Yokohama was the busiest and most modern center of international trade in all of East Asia.
Then Yokohama came tumbling down. On September 1, 1923, the Great Kanto Earthquake devastated the city. The ensuing fires destroyed some 60,000 homes and took more than 40,000 lives. During the six years it took to rebuild the city, many foreign businesses took up quarters elsewhere, primarily in Kobe and Osaka, and did not return.
Over the next 20 years Yokohama continued to grow as an industrial center—until May 29, 1945, when in a span of four hours, some 500 American B-29 bombers leveled nearly half the city and left more than half a million people homeless. When the war ended, what remained became—in effect—the center of the Allied occupation. General Douglas MacArthur set up headquarters here, briefly, before moving to Tokyo; the entire port facility and about a quarter of the city remained in the hands of the U.S. military throughout the 1950s.
By the 1970s Yokohama was once more rising from the debris; in 1978 it surpassed Osaka as the nation's second-largest city, and the population is now inching up to the 3.5-million mark. Boosted by Japan's postwar economic miracle, Yokohama has extended its urban sprawl north to Tokyo and south to Kamakura—in the process creating a whole new subcenter around the Shinkansen Station at Shin-Yokohama.
The development of air travel and the competition from other ports have changed the city's role in Japan's economy. The great liners that once docked at Yokohama's piers are now but a memory, kept alive by a museum ship and the occasional visit of a luxury vessel on a Pacific cruise. Modern Yokohama thrives instead in its industrial, commercial, and service sectors—and a large percentage of its people commute to work in Tokyo. Visit Yokohama for the waterfront and museums.