Tokyo (; 東京 Tōkyō, /  Japanese: [toːkʲoː] (), officially ) listen Tokyo Metropolis (, one of the 47 東京都 Tōkyō-to) of prefectures , has served as the Japan since 1869. Japanese capital  As of 2014 the  ranked as the Greater Tokyo Area in the world. most populous metropolitan area The urban area houses the seat of the  , of the Emperor of Japan and of the Japanese government . Tokyo forms part of the National Diet on the southeastern side of Japan's main island, Kantō region , and includes the Honshu and Izu Islands . Ogasawara Islands Tokyo was formerly named  when Edo Shōgun made the city as his headquarters in 1603. It became the capital after Tokugawa Ieyasu moved his seat to the city from Emperor Meiji in 1868; at that time Edo was renamed Tokyo. Tokyo Metropolis formed in 1943 from the merger of the former Kyoto Tokyo Prefecture ( and the 東京府 Tōkyō-fu) city of Tokyo (. 東京市 Tōkyō-shi)
Tokyo is often referred to as a city but is officially known and governed as a "metropolitan prefecture", which differs from and combines elements of a city and a prefecture, a characteristic unique to Tokyo.
were formerly 23 Special Wards of Tokyo . On July 1, 1943 it merged with Tokyo Prefecture and became Tokyo Metropolis with an additional 26 Tokyo City in the western part of the prefecture, and the municipalities and Izu islands south of Tokyo. The population of the special wards is over 9 million people, with the total population of Tokyo Metropolis exceeding 13.8 million. Ogasawara islands The prefecture is part of the  called the world's most populous metropolitan area with over 38 million people Greater Tokyo Area and the  . As of 2011 Tokyo hosted 51 of the world's largest urban agglomeration economy companies, the highest number of any city in the world at that time. Fortune Global 500 Tokyo ranked third (twice) in the  . The city is home to various television networks such as International Financial Centres Development Index , Fuji TV , Tokyo MX , TV Tokyo , TV Asahi , Nippon Television and the NHK . Tokyo Broadcasting System
Tokyo ranks first in the
and third in the Global Economic Power Index . The Global Cities Index 's 2008 inventory classified Tokyo as an GaWC alpha+ world city – and as of 2014  's World City Survey ranked Tokyo first in its "Best overall experience" category (the city also ranked first in the following categories: "helpfulness of locals", "nightlife", "shopping", "local public transportation" and "cleanliness of streets"). TripAdvisor As of 2015 Tokyo ranked as the 11th-  for expatriates, according to the most expensive city consulting firm, Mercer and also the world's 11th-most expensive city according to the  's cost-of-living survey. Economist Intelligence Unit In 2015, Tokyo was named the Most Liveable City in the world by the magazine  . Monocle The  has awarded Tokyo by far the most Michelin stars of any city in the world. Michelin Guide  Tokyo was ranked first out of all sixty cities in the 2017 Safe Cities Index.  The QS Best Student Cities ranked Tokyo as the 3rd-best city in the world to be a university student in 2016  and 2nd in 2018.  Tokyo hosted the  , the 1964 Summer Olympics , the 1979 G-7 summit , and the 1986 G-7 summit , and will host the 1993 G-7 summit , the 2019 Rugby World Cup and the 2020 Summer Olympics . 2020 Summer Paralympics
Etymology Tokyo was originally known as Edo (, which means " 江戸) ". estuary Its name was changed to Tokyo  ( when it became the imperial capital with the arrival of 東京 Tōkyō, 東 tō "east", and 京 kyō "capital") in 1868, Emperor Meiji in line with the East Asian tradition of including the word capital (  京) in the name of the capital city (like ( Kyoto 京都), ( Beijing 北京) and ( Nanjing 南京)). During the early  , the city was also called "Tōkei", an alternative pronunciation for the same characters representing "Tokyo", making it a Meiji period . Some surviving official English documents use the spelling "Tokei"; kanji homograph however, this pronunciation is now obsolete. 
The name Tokyo was first suggested in 1813 in the book
. When Satō Nobuhiro proposed the renaming to the government during the Ōkubo Toshimichi , according to
Oda Kanshi Meiji Restoration (, he got the idea from that book.
(Secret Plan of Commingling), written by
Chavacano de Zamboanga:
Nēhiyawēwin / ᓀᐦᐃᔭᐍᐏᐣ:
srpskohrvatski / српскохрватски:
ئۇيغۇرچە / Uyghurche: