Paul Tsuchihashi

Paul Yachita Tsuchihashi (土橋 八千太, Tsuchihashi Yachita, 1866-1965),[1] S.J. was a Japanese Roman Catholic priest, mathematician, astronomer, Sinologist, lexicographer, academic and administrator.[2] Father Paul is known for having developed extensive tables for converting traditional Japanese era dates into Gregorian calendar equivalents[3] — compare, e.g., Calendrical Time Conversion Table[4] which is derived from a formula for determining the numbered date in the Japanese month.[5]

Career

After completing studies in Paris, Tsuchihashi was assigned to Shanghai and the observatory at She Shan Hill (Zose).[6] In this period, his work focused on the movement of asteroids. He also taught mathematics at the Jesuit Aurora University in Xujiahui.[7]

When Sophia University was established in Tokyo in 1913, he became one of the members of the teaching faculty. He taught mathematics and Chinese literature. He was Rector of the university from 1940 until the end of the war years.[7]

Honors

Selected works

In a statistical overview derived from writings by and about Paul Tsuchihashi, OCLC/WorldCat encompasses roughly 10+ works in 20 publications in 3 languages and 200+ library holdings.[8]

This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by adding missing items with reliable sources.
  • Japanese chronological tables from 601 to 1872 (邦曆西曆對照表: 自推古九年至明治五年, Hōreki seireki taishōhyō: Suiko kyūnen yori Meiji gonen ni itaru), 1952 OCLC 001291275

Notes
  1. Library of Congress authority file, Paul Yachita Tsuchihashi, no2009-35643
  2. "98-Year-Old Jesuit Priest, Born a Samurai Warrior, Dies at Tokyo University," Black Belt (US). Vol. 3, No. 7 (July 1965), p. 60., p. 60, at Google Books
  3. NengoCalc (University of Tübingen), Tsuchihashi conversion tables
  4. Totman, Conrad D. (1980). The Collapse of the Tokugawa Bakufu, 1862-1868, p. 484., p. 484, at Google Books
  5. Webb, Herschel et al. (1994). Research in Japanese Sources: a Guide, pp. 20-27.
  6. Vallina, Agustín Udías. (2003). Searching the Heavens and the Earth: the History of Jesuit Observatories, p. 278., p. 278, at Google Books
  7. Vallina, p. 164., p. 164, at Google Books
  8. WorldCat Identities: 関孝和 ca. 1642-1708

References
  • Totman, Conrad D. (1980). The Collapse of the Tokugawa Bakufu, 1862-1868. Honolulu: University of Hawaii Press. ISBN 9780824806149; OCLC 185964275
  • Webb, Herschel and Marleigh Grayer Ryan. (1994). Research in Japanese Sources: a Guide. Ann Arbor, Michigan: University of Michigan Press. ISBN 9780939512652; OCLC 29913782


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