Official

Every day, my smartphone is notified of what anniversary today. I came on the morning of April 19 last week, "Map Day". It was made to commemorate that Tadataka Ino departed for the first time on a survey trip to Ezochi and Hokkaido today on this day of 1800 AD.

Speaking of Tadataka Ino, he was famous for completing an accurate map of all over Japan for the first time in the Edo period, "All Map of Japan Coastal Koshichi," by conducting surveys nationwide.

So, just after leaving Kayabacho Subway Station, I remembered that there was an explanation version related to Tadataka Ino, so I went there. It's the site of the map. Tadataka Ino settled in the vicinity of Kuroe-cho, Edo Fukagawa (currently 1-chome, Monzennakacho, Koto-ku), where he lived until then, called Hatchobori Kamejima-cho, at the time, and a map of the Shogunate was also attached there. , The creation of survey maps was being performed. It is said that it was used as a map place even after Ino died. By the way, the place name Kamejima remains as Kamejima River and Kameshima Bridge. After Ino died here, the "Dainippon Seaside Koshichi Map" was completed, but it seems that he had mourned until completion in order to make Ino's achievement. I am deeply moved to think that the whole map was created in this area.

Later, when Siebold returned to Japan, it was discovered that he tried to take out a copy of this map, and a person concerned was killed (the map was a national secret at the time). However, it makes me feel that the statue of Siebold is located in Akatsuki Park in Akashicho.

By the way, a splendid statue of Tadataka Ino departing on a survey trip is just outside the torii gate of Tomioka Hachimangu Shrine in Monzennakacho, Koto-ku.

He said that he departed after visiting here during his first survey to Ezochi and on a survey trip to a distant country. It seems that the cane he had had a direction magnet for surveying.