Legendary Japanese Emperors

660BC – 585BC Emperor Jimmu, presumed legendary, claimed his descent from the sun goddess He was the first of 125 rulers of Japan: 
581BC – 549BC Emperor Suizei
549BC – 511BC Emperor Annei

Modern Japan

1867 – 1912 Emperor Mutsuhito (First in Constitutional Monarcy)
1912 – 1926 Emperor Yoshihito  
1926 – 1989 Emperor Hirohito   (Last to hold political power)
1989 – Emperor Akihito