I read back "Nihonbashi Private Notebook" (published in 1972) by Yasaburo Ikeda. In the text of March 1968 entitled "Tokyo / Great Tokyo / Shitamachi", it is written as follows.
＞Probably, the downtown area of Edo must have meant more proud, castle knees, the castle town of Edo, Shiroshita, before it became the name of down town that confronts the mountains. It must have been the birthplace of Edo and Edo towns in Edo, such as Honmachi and Tooricho, as a castle town. The words such as Shiroshita and the castle have a unique pride. ・・・・・・・・・
It is the town where the castle was built in Edo. So the beginning was that the downtown area of Edo was a small area, and the head office, Fukagawa, beyond Okawa, was still sea or marshland, not a town, and Kanda arrived in Asakusa, along with Edo, but it was only a district in temple town in Kannon, like Ichijuku Station. It was a long time later that Kanda, Asakusa, Shitaya, and Honjo and Fukagawa became downtown, and going around Nihonbashi was when people from Asakusa and Honjo Fukagawa said, `` Go to Edo '' The downtown was a castle, not a town under the shogun's knees, but it was not a down town. （256）
And then
＞Tokyo has been developing rapidly since the Edo period. At each stage, I don't think I can't say anything unless I think carefully.
I'm tied it. It was in 1818 that "Shubiki" (the jurisdiction of the shrine magistrate) and "Sumibiki" (the area under the jurisdiction of the town magistrate), which can be said to be the official views of the Shogunate regarding the "range of Edo", were presented in 1818. It has been almost 230 years since Ieyasu entered the prefecture. When discussing the "range of Edo", it is impossible to say something unless you think carefully at what point and at what stage.
