Yokohama is the second Japanese city in population with 3.6 million after Tokyo.
On February 12, 1854, Commodore Matthew Perry anchored off Yokohama with a fleet of American warships. At this time the Japanese signed the Kanagawa Treaty opening two ports, Shimoda and Hakodate, to American ships. In 1858, the US-Japan Treaty of Amity was signed, opening up six ports to foreign trade, including Kanagawa. One year later, the trading rights for foreigners were transferred to Yokohama, a sleepy little fishing village at the time. Thus began the transformation that was to turn Yokohama into one of the most famous port cities in the world.