The life of Shibukawa Shunkai: first official astronomer of the Tokugawa Shogunate: https://t.co/XR9ka9JgeJ #ndldigital https://t.co/F09YXAVw81
These tools were used to make Japan's first indigenous calendar. Read more to find out: https://t.co/XR9ka9JgeJ #ndldigital https://t.co/KW1m3iR78T
Struggles of an astronomer in creating Japan's first indigenous calendar in the 17c: https://t.co/XR9ka9JgeJ #ndldigital https://t.co/tufNo7G59H
The life of Shibukawa Shunkai: first official astronomer of the Tokugawa Shogunate: https://t.co/XR9kaa0jgJ #ndldigital https://t.co/TwiraafeKz
Struggles of an astronomer in creating Japan's first indigenous calendar in the 17c: https://t.co/XR9kaa0jgJ #ndldigital https://t.co/auA75ne93n
The life of Shibukawa Shunkai: first official astronomer of the Tokugawa Shogunate: https://t.co/XR9ka9JgeJ #ndldigital https://t.co/DHr8DcDEdw
"Shibukawa Shunkai’s letters: A life dedicated to the Jokyo calendar", a newsletter article on the work of Shibukawa Shunkai (b. 1639) - first official astronomer of the Tokugawa Shogunate, Japan @NDLJP_en https://t.co/uFhFr4kUHw https://t.co/205mgVdq1Y
The life of Shibukawa Shunkai: first official astronomer of the Tokugawa Shogunate: https://t.co/XR9kaa0jgJ #ndldigital https://t.co/EiYAbp9Bb2
The life of Shibukawa Shunkai: first official astronomer of the Tokugawa Shogunate: https://t.co/XR9kaa0jgJ #ndldigital https://t.co/KjfpzSGpUD
These tools were used to make Japan's first indigenous calendar. Read more to find out: https://t.co/XR9kaa0jgJ #ndldigital https://t.co/GcKDHSG7nb