In the Edo period, there was a Temmacho prison in the area of Jisshi Park, Jushi Square (former Jushi Elementary School) in Nihonbashikodenmacho. With a site area of about 2,700 tsubo (approximately 8,900 m2), it is said that it was the largest prison in the Shogunate with a maximum of 900 prisoners. The excavation was about 900 m2 of this excavation, and it is rare to excavate such a large prison site. A tour of the archeological excavation site was held on August 10 and 11.
According to the tour materials, the prison was located outside Tokiwa Hashikado in the early Edo period, but was relocated to Ko Temmacho around 1613 (1613 = 1618 in the handout, but if the Japanese calendar is correct, it will be 1613) It survived until 1875 (1875). The prison was like a detention house until the sentence was finalized. The prison (gogun magistrate) to be managed is the Ishide sword (Ishide Tatewaki). The prison was distinguished by the status of the prisoner. These include Gennai Hiraga, Kazan Watanabe, Yoshida Shoin, Shozan Sakuma and Sanai Hashimoto.
The excavated remains were wooden gutters, water basins, wells, stone walls, and burnt traces drawn from Kanda Josui, where ceramics, tiles, metal fittings, coins, etc. were excavated. (Reference material: "Temmacho prison ruins site tour material", Chuo-ku Board of Education, published on August 10, 2012) ●Akira Makibuchi