伊能忠敬、地図を完成させた男/Ino Tadataka — The Man Who Completed the Map
最初の一歩の日/The Day of the First Step
1800年4月19日（寛政12年）、伊能忠敬が蝦夷地（現在の北海道）への第一次測量のために江戸を出発しました。これが日本初の本格的な地図測量の始まり。この日を「地図の日」「最初の一歩の日」と呼びます。
On April 19, 1800 (the 12th year of the Kansei era), Ino Tadataka set out from Edo to conduct the first surveying expedition to Ezo (present-day Hokkaido). This marked the beginning of Japan’s first full-scale cartographic survey. That day is now known as “Map Day” and “The Day of the First Step.”
55歳からの大冒険/A Grand Adventure at 55
伊能忠敬が測量を始めたのは、なんと55歳のとき。当時の平均寿命を考えると驚きの年齢です。しかも彼は商人出身で、50歳を過ぎてから本格的に天文学・測量術を学び始めました。
以後17年間、全国を歩いた総距離は約4万km。地球一周に匹敵します。完成した「大日本沿海輿地全図」はその精度の高さに西洋の学者たちも驚愕したと言われています。
Remarkably, Ino Tadataka began his surveying work at the age of 55 — a stunning feat given the average life expectancy of the time. What’s more, he came from a merchant background and only began studying astronomy and surveying in earnest after turning 50. Over the following 17 years, he walked a total distance of roughly 40,000 km across the entire country — equivalent to circumnavigating the globe. The completed Dai Nihon Enkai Yochi Zenzu (Complete Map of the Coastal Areas of Japan) was said to have astonished Western scholars with its remarkable accuracy.
伊能忠敬の「もうひとつの顔」/Another Side of Ino Tadataka
実は伊能忠敬、商人としても相当な成功者。千葉・佐原の名家に婿養子に入り、酒・醤油の醸造業を大きく発展させ、家業で財を成した後に測量の旅に出ます。「第二の人生」を壮大な夢に捧げた姿は、何歳からでも挑戦できるという力強いメッセージを現代に伝えています。
Ino Tadataka was, in fact, a highly successful merchant as well. He married into a prominent family in Sawara, Chiba, and greatly expanded their sake and soy sauce brewing business, building considerable wealth before embarking on his surveying journeys. His dedication of a “second life” to a grand dream stands as a powerful message to people today: it is never too late to pursue a new challenge.
偶々、この前千葉に帰ったときに佐原に行ってきました。
伊能忠敬記念館は休館だったんですが、周りの街並みがとてもきれいでうちの愛犬たちとお散歩を楽しんできたので、少しだけ共有しますね。
本当にいい所だったので、是非訪れて楽しんでください。
ではよい一日をお過ごしください。
see you soon.
As it happens, I recently visited Sawara on a trip back to Chiba. The Ino Tadataka Memorial Museum was closed, but the surrounding townscape was absolutely beautiful — I had a wonderful walk with my beloved dogs and wanted to share just a little of that with you.
It really is a wonderful place, so I do hope you’ll have a chance to visit and enjoy it for yourself.
Have a wonderful day.
See you soon.
コメント