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. During this time, the emperors were Go-Momozono-tennō (後桃園天皇) and Kōkaku-tennō (光格天皇).
The nengōAn'ei means "Eternal Tranquility" or "Peaceful and Long".
Events of the An'ei era
The volcano of Sakurajima erupted in the 7th year of An'ei
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).
1780 (An'ei 9): Heavy rains and flooding in the Kantō.
♯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.