・The names of the islands that make up the Oyasu Islands and the order in which they appeared differ between the “Kojiki” and the “Nihonshoki,” but both place Awaji Island first. As a result of this, “Izanaki Shrine, which enshrines Mikoto Izanaki,” was created (p21)
・The three Sumiyoshi gods are the guardians of the Tsumori clan based on the Osaka Bay coast, and this god was enshrined at Sumiyoshi Taisha Shrine in Osaka City; in addition, there are Sumiyoshi Shrine in Iki City, Shimonoseki City, and Fukuoka City (p32)
・The ancient imperial family has 12 other shrines (Keta Shrine, Hikawa Shrine, etc.) as the shrine that most values Ise Jingu, which enshrines Amaterasu Omikami, and Izumo Taisha, which has Okuninumei as the enshrined deity (p50). The Yamato Imperial Court in the 4th and 5th century particularly valued the three shrines: Omiwa Shrine (Sakurai City, Nara Prefecture), Yamato Shrine (near Nagara Station, Nara Prefecture), and Isonoue Shrine (Tenri City, Nara Prefecture) (p60)
・Until around the 6th century, the Tohoku region and Niigata prefecture were regarded as the land of Ezo, and many residents there did not know farming, and lived by hunting, fishing, gathering fruits, and wild plants (p103)
・The tomb of Emperor Ritchu, Emperor Ojin, and Emperor Nintoku, which is over 350 meters, is appropriate to be called a giant tomb (p148). According to archaeological materials, the tomb is thought to be from the end of the 5th century, and there is also a possibility that the burial mound was not Emperor Nintoku at the beginning of the 5th century, but the powerful emperor, Emperor Yuryaku, at the end of the 5th century (p149)
・Japan began to use the monarch title “Tenno” for the three countries of Korea, which is a title made in China during the Northern and Southern Dynasties, and although it is inferior to the emperor, it is a monarch title higher than the king (p203)
