An'ei

was a  after Meiwa and before Tenmei. This period started in November 1772 and ended in March 1781. During this time, the emperors were  and .

The nengō An'ei means "Eternal Tranquility"Hall, John Whitney. (1955). Tanuma Okitsugu, 1719-1788, p. 7. or "Peaceful and Long".

Events of the An'ei era
 1774 (An'ei 3): Kaitai shinsho, the first complete Japanese translation of a Western medical work, is published by Sugita Gempaku and Maeno Ryotaku.
 1775 (An'ei 4): Epidemic diseases spread in the Japanese population and 190,000 died in Edo.Hall, John Whitney. (1955). Tanuma Okitsugu, 1719-1788: Forerunner of Modern Japan,  p. 121.
 1775 (An'ei 4): Carl Peter Thunberg arrived at Dutch East India Company outpost or "factory" in Nagasaki.
 1778 (An'ei 7): Flooding at Kyoto.
 1778 (An'ei 7): Volcanic island of Sakurajima erupted near Kagoshima and 16,000 were killed.
 12 June 1779 (An'ei 8, 28th day of the 4th month): Former-Emperor Go-Momozono died.
 1779 (An'ei 8): Isaac Titsingh arrived at Dejima.
 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.

Related pages 
 Edo period

 References 

 Other websites
 National Diet Library, "The Japanese Calendar" – historical overview plus illustrative images from library's collection
 National Archives of Japan: Hinozenshu sanbutsu zuko, scroll showing illustrated inventory of industries in Hizen, An'ei 2 (1773) 

An'ei1st2nd3rd4th5th6th7th8th9th10th  1772  1773  1774  1775  1776  1777  1778  1779  1780  1781
Preceded by:MeiwaEra or nengō:An'eiSucceeded by:Tenmei

Category:Japanese eras
Category:1772 establishments
Category:18th-century establishments in Japan
Category:1780s disestablishments
Category:18th-century disestablishments in Japan
Category:1770s establishments in Asia