Daidō (大同) was a Japanese era name (年号,, nengō,, lit. "year name") after Enryaku and before Kōnin. This period started in May 806 and ended in September 810. During this time, the emperors were Heizei-tennō (平城天皇) and Saga-tennō (嵯峨天皇).
Daidō (大同) was a Japanese era name (年号,, nengō,, lit. "year name") after Enryaku and before Kōnin. This period started in May 806 and ended in September 810. During this time, the emperors were Heizei-tennō (平城天皇) and Saga-tennō (嵯峨天皇).