Lua error in package.lua at line 80: module 'Module:Lang/data/is latn data' not found. was a Lua error in package.lua at line 80: module 'Module:Lang/data/is latn data' not found. after Shōhō and before Jōō. This period started in February 1648 and ended in September 1652.[1] During this time, the emperor was Lua error in package.lua at line 80: module 'Module:Lang/data/is latn data' not found..[2]
1 April 1649 (Keian 2, 20th day of the 2nd month): There was a major earthquake in Edo.[6]
1651 (Keian 4): Plot to overthrow the Tokugawa, also known as the Keian Uprising.[7]
1652 (Keian 5, 5th month): Nihon Odai Ichiran was published.[8] The French version of this work was the first Japanese history book to be published in the West.
♯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.