Traditional date for the foundation of Japan by Emperor Jimmu

Traditional date for the foundation of Japan by Emperor Jimmu

11 February 660 BC

Emperor Jimmu (神武天皇 Jinmu-tennō?) was the first Emperor of Japan, according to the traditional order of succession. He is also known as Kamuyamato Iwarehiko no Mikoto (神日本磐余彦尊?) and personally as Wakamikenu no Mikoto (若御毛沼命?) or Sano no Mikoto (狹野尊?).

The Imperial house of Japan traditionally based its claim to the throne on its descent from Jimmu. While his accession is traditionally dated to 660 BC, no historically firm dates can be assigned to this early emperor's life or reign, nor to the reigns of his early successors. Most modern historians dismiss this entire period as being beyond what history can know. The reign of Emperor Kimmei (509?–571 AD), the 29th emperor of Japan according to the traditional order of succession, is the first for which contemporary historiography is able to assign verifiable dates.