In a richly illustrated study, the authors trace Jimmu Tenno, Japan’s legendary first emperor, on bronze mirrors of his own time.The mirrors, while steeped in mythology, tell the emperor’s historic deeds almost exactly as do the eighth-century legends in the “Kojiki” and “Nihon shoki”, thereby revealing the founder of Japan and its ruling dynasty as a truly historical figure who lived - and worshipped the sun-goddess Amaterasu - in the third century of our era. These discoveries will have a major impact on the history of Japan.