Overview
The was the period of Japanese history corresponding to the reign of Emperor Emeritus Akihito from 8 January 1989 until his abdication on 30 April 2019. The Heisei era started on 8 January 1989, the day after the death of the Emperor Hirohito, when his son, Akihito, acceded to the throne as the 125th Emperor. In accordance with Japanese customs, Hirohito was posthumously renamed "Emperor Shōwa" on 31 January 1989.
Thus, 1989 corresponds to Shōwa 64 up until 7 January and from 8 January. The Heisei era ended on 30 April 2019 (Heisei 31), with the abdication of Akihito from the Chrysanthemum Throne. It was succeeded by the Reiwa era as then-crown prince Naruhito ascended the throne on 1 May midnight local time.
History and meaning
On 7 January 1989, at 07:55 AM JST, the Grand Steward of Japan's Imperial Household Agency, Shōichi Fujimori, announced Emperor Hirohito's death at 6:33 AM JST, and revealed details about his cancer for the first time. Shortly after the death of the Emperor, Keizō Obuchi, then Chief Cabinet Secretary and later Prime Minister of Japan, announced the end of the Shōwa era, and heralded the new era name "Heisei" for the new Emperor, and explained its meaning.
From Wikipedia (CC BY-SA 4.0).