Chapter 1-4

St. Noah got his descendant. (14)
On Sunday, January 1, about 2558 B.C., the ancestors of Abraham began the old solar calendar of the Jews on Sunday the winter solstice, and it had 365.25 days in one year.
Shortly speaking, the old solar calendar of the ancestor of Abraham which was begun in about 2558 B.C. was twenty days longer in A.D. 2 than the old Gregorian calendar of the Astronomy, and the date of winter solstice changed from January 1 to December 12.
On November 20, 2004 A.D., I made the theorem of the old solar calendar of the Jews.
(- 128 × 20) + 2 = - 2558, (- 128 × [7+13]) + 2 = - 2558
(See my explanation in the Chapter 12 of The Diaries of the Gospels, Astronomy data).
My dates were based on the data of the sun and the moon of the Astronomy, and I used the data of Mr. Tsukasa Hasegawa. http://www.star.gs/ ☆出没南中時刻：太陽・月・惑星.
年月日: year, month, day. エルサレム（イスラエル）: Jerusalem (Israel). 太陽: The sun.
日Sunday月Monday火Tuesday水Wednesday木Thursday金Friday土Saturday
On Sunday, January 1, about 2558 B.C., the ancestors of Abraham began the old solar calendar of the Jews on Sunday the winter solstice, and it had 365.25 days in one year.
My mother language was Japanese. I wrote my thinking on the left side of the Table.

https://www.amazon.co.jp/Diaries-Gospels-Astronomy-data-English-ebook/dp/B09MJVRCK5