Year in Japan

857 in Japanese History

1 recorded entry for this year. It falls in the Heian period (平安時代, 794 – 1185).

Era name: Ten'an 天安 (year 1 of the era)

What happened 出来事

Ten'an 天安 · Japanese era name — Japanese era from January 857 to April 859

Reading the year 857 in Japanese

Japanese sources from this period date events by era name, not by the Western calendar. 857 corresponds to Ten'an 天安 (year 1 of the era). Years are written with 年 (ねん, nen) — so 1600 appears as 慶長5年, "the fifth year of Keichō".

The year itself is read 857年 (857ねん) in modern Japanese. Browse the full timeline to see where this year sits in the wider arc, or the 9th century for its neighbours.