An'ei (安永) was a Japanese era name (年号,, nengō,, lit. "year name") after Meiwa and before Tenmei. This period started in November 1772 and ended in March 1781.[1] During this time, the emperors were Go-Momozono-tennō (後桃園天皇)[2] and Kōkaku-tennō (光格天皇).[3]
The nengōAn'ei means "Eternal Tranquility"[4] or "Peaceful and Long".[5]
1780: After the death of Empress Go-Momozono, the succession (senso) passed to Emperor Kōkaku; and his role as monarch was confirmed by ceremonies (sokui).[10]
1780 (An'ei 9): Heavy rains and flooding in the Kantō.[7]
♯The Northern pretenders did not recognize the Genkō era. Gentoku was used in the Northern Court until 1332. ₪The Shōkyō era was recognized only by the Northern pretenders, not by the Southern Court. ‡ Upon reunification of the Northern and Southern Courts in 1392, Genchū was discontinued. Meitoku was used until 1394.