Tokyo is in Japan.
The is a geographical area of Honshu , the largest island of Japan . is a city located in the central part of the island of Honshu , Japan . The are 23 municipalities that together make up the core and the most populous part of Tokyo , Japan . Tokyo . It officially became the capital after Emperor Meiji moved his seat to the city from the old capital of Kyoto in 1868 ; at that time Edo was renamed Tokyo .