Tokyo
Tokyo is the capital and the most populous prefecture of Japan. Tokyo's metropolitan area (including neighboring prefectures as well as Tochigi, Gunma and Ibaraki; 13,452 square kilometers or 5,194 square miles) 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.
Originally named Edo, the city started to flourish after Tokugawa Ieyasu established the Tokugawa Shogunate here in 1603. As the center of politics and culture in Japan, Edo grew into a huge city with a population of over a million by the mid-eighteenth century.
