On July 8, 1853, Commodore Matthew C. Perry sailed his frigate Susquehanna into Tokyo Bay opening Japan to Western influence and trade. From the article:
"Commodore Matthew C. Perry and the Opening of Japan
Introduction
In the mid-nineteenth century, Japan was largely a closed society, resistant to diplomatic and commercial contact with foreigners. Attempts by the United States and other nations to establish formal relations with Japan were repeatedly rebuffed. In response to this situation, in March 1852, President Millard Fillmore ordered Matthew C. Perry to command the U.S. Navy's East India Squadron and to establish diplomatic relations with Japan. Perry initially delivered President Fillmore's request for a treaty to a representative of the Japanese emperor in July 1853. Perry returned with a larger force in 1854, arriving in Edo (Tokyo) Bay, and obtained the signature of Japanese authorities to the Treaty of Kanagawa on 31 March 1854. As a result of this treaty of permanent friendship, a U.S. consul was stationed at Shimoda, U.S. vessels were allowed access to the ports of Shimoda and Hakodate to obtain provisions, and shipwrecked seamen from U.S. vessels were to receive the assistance of Japanese authorities. This treaty led to significant commercial trade between the United States and Japan, contributed to opening Japan to other Western nations, and ultimately resulted in the modernization of the Japanese state."