Emperor Jimmu

• Distinction: First Emperor of Japan
• Other names: Kamu-yamato-ihare-biko no Mikoto
• Japanese: 神武天皇 (Jimmu tennou)

Jimmu was known as Kamu-yamato-ihare-biko no Mikoto before becoming Emperor of Japan. A composite, mythological character represented in the Nihon Shoki and Kojiki, he most likely represents broad social changes rather than an actual charismatic figure. As the mythological originator of the Imperial lineage, and thus of "Japan," he is a figure who was appropriated and employed heavily in the (ultra)nationalist ideology of the early 20th century, and continues to be embraced and employed by certain strains of political belief today.

The reign of Emperor Jimmu is traditionally said to have begun in 660 BCE, a date thus associated in nationalist myth with the beginning of the Imperial line, and the foundation of Japan. There is no archaeological or historical evidence for any coordinated, stable, or centralized "Japanese" state at that time, however, let alone one with continuities to the Japanese state or Imperial lineage of later historical periods.

It is believed that the date of 660 BCE may have been determined by simply counting back 1,260 years from 601. In the Nara period, 601 may have been seen as a year of particularly important political and cultural developments. This year was a kanato tori (younger metal bird) year on the sexegenary cycle. As kanato tori years are said to be years of great events, and as the complete cycle goes around once every 1,260 years, 660 BCE would have been a kanato tori year as well; the compilers of the Nihon shoki may have selected this year for this reason.

Capitals and Grave

Jimmu established the capital at Kashiwara (Kashiwabara) 橿原, which is located near Mount Unebi in Yamato province. A tomb mound known as Unebi-yama-no-misasagi, said to be that of Emperor Jimmu, is located at the foot of Mt. Unebi.