Chronology of "Nihon Shoki" and national histories

2017 Fiscal Year Final Research Report

• Project/Area Number: 26370782
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Japanese history
• Research Institution: Kwassui Women's College
• Principal Investigator: HOSOI Hiroshi 活水女子大学, 文学部, 教授 (30263990)
• Co-Investigator(Renkei-kenkyūsha): YOSHII Manabu 活水女子大学, 健康生活学部, 准教授 (30714828)
• Research Collaborator: KIKUCHI Tatsuya ; KYOIZUMI Yuhei ; TACIBANA Daisuke ; TAMURA Kyoshiro
• Project Period (FY): 2014-04-01 – 2018-03-31
• Keywords: 日本書紀 / 六国史 / 暦 / 百済 / 呪禁師 / 陰陽道 / 亀卜 / 疫病

Outline of Final Research Achievements

A methodology is presented for studying the calendar days of "Nihon Shoki". With a few exceptions, dates of articles in this text prior to the 5th century are highly suspect, either as later editorial fabrications, or due to problems with the materials the compilers used. It is then necessary to distinguish between such cases and the annual establishment of articles by the compilers，or the conversion of dates to the zodiac in the final stages of compilation (just before the presentation to the Emperor in 720). It is argued that in Wa (Old Japan) and Baekje（Old Southwest Korea）before the 5th century, even the most powerful groups recognized only years and months.
In addition, changes are proposed to common theories about the process of formation of the Yin Yang way and the plague of 737 etc.

Free Research Field

日本史学　とくに古代の歴史意識・暦・時刻・陰陽道