| If the Gregorian calendar is used as the base, one year has to be added to each of the years counted based on the traditional Japanese system, which will not match with the dates appearing in the literature from those era. |
⇒グレゴリオ暦を基準とすると、数え年が「1」加算されてしまい、当時の文献などと整合が失われてしまう。 |