It seems that we can solve the mystery of the Jinshin War.

[Japanese]

Wednesday, 11th of November, 2020

The other day, when we visited the tomb of Princess Nukata (額田王), Ms. Tsubaki Nakahara asked me at the top of the tomb,

"Whose tomb is this?"

I answered, "Eeh!? This is the tomb of Princess Nukata."

She told me, "There is also an area called 'Nukata Gun (額田郡, Nukata County)' in Aichi Prefecture near Okazaki." 

"Eeh!!"

... At the time of the Jinshin War (壬申の乱), Prince Ōama (大海人皇子, later Emperor Temmu) asked for reinforcements in the Ise (伊勢), Iga (伊賀), Mino (美濃), Owari (尾張), and Mikawa (三河) areas.

As soon as Emperor Kōbun (弘文天皇)（Prince Ōtomo, 大友皇子）side  heard that Prince Ōama had gained the cooperation of the great families of these lands, his followers were so frightened that they lost the will to fight.

This mystery has been in the corner of my mind for a long time. I wondered why...?

I thought that the mystery might be solved by trigonometry when I heard Tsubaki-san's words above the tomb of Princess Nukata. Later, I looked up the history of "Nukata Gun" on the internet and looked it up on the Geographical Survey Map, it came to light as I thought it would.

That's the figure below. I think I can trace a mysterious root from here.

The existence of a mountain called Kyogamine (京ヶ峯) emerged as I looked up the history of Nukata Gun.

Since "Mine (峯)" means a tomb in Hebrew, it must have been the tomb of the head of a large tribe that was closely related to Princess Nukata. From this relationship, I searched for another point using trigonometry, then Aseri (安栖里) emerged.

Aseri (安栖里) is the village of Himiko's son's daughter-in-law, and it was the place where Emperor Ōjin spent his childhood after Himiko hid in the rocks.

I wondered if this was a possibility, ... then I looked at the line that was determined by the two points of the mountain (tomb) at Aseri (500m) and Kyogamine with Thales Theorem, I found that Emperor Temmu's tomb existed indeed there.

This indicates that Emperor Temmu and Princess Nukuta had a close blood relationship with each other.