Paul Tsuchihashi

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

  1. ^ "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
  2. ^ NengoCalc (University of Tübingen), Tsuchihashi conversion tables
  3. ^ Totman, Conrad D. (1980). The Collapse of the Tokugawa Bakufu, 1862-1868, p. 484., p. 484, at Google Books
  4. ^ Webb, Herschel et al. (1994). Research in Japanese Sources: a Guide, pp. 20-27.