Tokyo

Tokyo, officially the Tokyo Metropolis, is the capital and the most populous prefecture of Japan. Tokyo's metropolitan area is the most populous in the world, with an estimated 37.468 million residents as of 2018; although this number has been gradually decreasing since then, the prefecture itself has a population of 14.09 million people while the prefecture's central 23 special wards have a population of 9.73 million. Located at the head of Tokyo Bay, the prefecture forms part of the Kantō region on the central coast of Honshu, Japan's largest island. Tokyo serves as Japan's economic center and is the seat of both the Japanese government and the Emperor of Japan.

Originally a fishing village named Edo, the city emerged into political prominence in 1603, when it became the seat of the Tokugawa shogunate. By the mid-18th century, Edo was one of the most populous cities in the world with a population of over one million people.