1. Shibukawa ShunkaiShibukawa Shunkai was a Japanese scholar, go player and the first official astronomer appointed of the Edo period. He revised the Chinese lunisolar calendar at the imperial request, which was issued in 1684 during the Jōkyō era. In 1702, he changed his name to Shibukawa Sukezaemon Shunkai and retired by 1711. As a go player, he was affiliated with the Yasui house, calling himself initially (after his father) Yasui Santetsu II.
Read “Shibukawa Shunkai” on English Wikipedia
Read “渋川春海” on Japanese Wikipedia
Read “Shibukawa Shunkai” on DBpedia
Read “Shibukawa Shunkai” on English Wikipedia
Read “渋川春海” on Japanese Wikipedia
Read “Shibukawa Shunkai” on DBpedia
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