Tokyo is the central place of politics, economy, culture and academics in Japan as well as the home of the Japanese emperor and the seat of the national government, as well as a major business and financial centre for all of East Asia.
Tokyo literally means "eastern capital" in Japanese, a meaning in opposition to an old capital to the west, Kyoto, which was renamed "Saikyo", meaning "western capital", for a brief period of time.
Tokyo is also part of the Greater Tokyo Area, which consists of Tokyo itself and the surrounding prefectures of Kanagawa, Saitama and Chiba.
Tokyo is the capital of Japan as well as the most populous conurbation in Japan, and is the most populous metropolitan area in the world.
Tokyo's re-emergence from wartime trauma was complete at the 1964 Summer Olympics, which publicized the city on an international stage and brought global attention to the "economic miracle".
Tokyo is home to an enormous number of companies in many sectors of the national and world economy.