Tokyo was originally known as Edo (江戸), a kanji compound of 江 (e, "cove, inlet") and 戸 (to, "entrance, gate, door"). The name, which can be translated as "estuary", is a reference to the original settlement's location at the meeting of

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Pre-1869 (Edo period)
Tokyo was originally a small fishing village called Edo, in what was formerly part of the old

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The mainland portion of Tokyo lies northwest of Tokyo Bayand measures about 90 km (56 mi) east to west and 25 km (16 mi) north to south. The average elevation in Tokyo is 40 m

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Tokyo has enacted a measure to cut greenhouse gases. Governor Shintaro Ishihara created Japan's first emissions cap system, aiming to reduce greenhouse gas emission by a total of 25% by 2020 from the 2000 level. Tokyo is an example of an

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Tokyo has the largest metropolitan economy in the world. According to a study conducted by PricewaterhouseCoopers,

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Tokyo, which is the center of the Greater Tokyo Area, is Japan's largest domestic and international hub for rail and ground transportation. However,

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Architecture in Tokyo has largely been shaped by Tokyo's history. Twice in recent history has the metropolis been left in ruins: first in the

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