The History of Tokyo chronicles the growth of Japan's largest urban center. The eastern mainland part of Tokyo occupies land in the Kant? region that, together with the modern-day Saitama Prefecture, the city of Kawasaki and the eastern part of Yokohama, made up Musashi, one of the provinces under the ritsury? system.
The central part of the 23 special wards lay in Toshima, Ebara, Adachi, and Katsushika Districts. Western Tokyo occupied Tama District. Tokyo's oldest Buddhist temple, Sens?-ji in Asakusa, is said to date from the year 645.
In the Kamakura period, the village of Edo was established.