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 … See more

The mainland portion of Tokyo lies northwest of Tokyo Bay and measures about 90 km (56 mi) east to west and 25 km (16 mi) north to south. The average elevation in Tokyo … See more

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 … See more

Tokyo, which is the center of the Greater Tokyo Area, is Japan's largest domestic and international hub for rail and ground transportation. However, its airspace has been under the US … See more

Pre-1869 (Edo period)
Tokyo was originally a village called Edo, in what was formerly part of the old Musashi Province. Edo was first fortified by the Edo clan, in the late twelfth century. In 1457, Ōta Dōkan built Edo Castle. In 1590, See more

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 See more

Tokyo has the largest metropolitan economy in the world. According to a study conducted by PricewaterhouseCoopers, the Greater Tokyo Area (Tokyo–Yokohama, TYO) of 38 million people had a total GDP of $2 trillion in 2012 (at See more