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Kiyoshi Yabūchi

Japanese mathematician and historian of mathematics (1906-2000) · Japan · On the map · Academics · Died at 94

Kiyoshi Yabuuchi, often written in Kunrei-shiki romanization as Kiyosi Yabuuti, was a Japanese astronomer and historian of science. He gained an international reputation as a leading pioneer in the field of pre-1840 Chinese mathematics and Chinese astronomy.

Kiyoshi Yabūchi is read about 5 times a day, in 7 languages.

A typical day, 30 days to 8 July 2026

The middle day of the days counted, so one week of news cannot move it. The line under it is the last 60 days, one point a day.

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