Emperor Kanmu relocates the Japanese capital to Heian-kyō (now Kyoto).
Emperor Kanmu (桓武天皇, Kanmu-tennō, 735 – 9 April 806), or Kammu, was the 50th emperor of Japan, according to the traditional order of succession. Kanmu reigned from 781 to 806, and it was during his reign that Japanese imperial power reached its peak.