April 19 is a map day.
<Bronze statue of Tadataka Ino, Koto-ku
>
The survey journey began on April 19, 1800 old calendar leap, and it took 40,000 km and 17 years.
Traces of Tadataka Ino, who achieved his feat, are also left in Chuo-ku.
I'm looking for a map. It was used to create a house and survey map, and Japan's first full-scale map based on actual measurements was completed.
At the end of Kameshima Bridge. It is the last survey site in his later years, and there is an explanation board in the place where he died.
To measure the same distance as around the earth when there was no modern surveying technology or means of transportation.
It's a great thing.
Why don't you take this opportunity to feel Mr. Tadataka's feat?
◆Around Hatchobori, Nihonbashi Kayabacho, Chuo-ku, Tokyo
