Genkyū gannen(元久元年,Genkyū gannen?); 1204: The new era name was created to mark an event or a number of events. The previous era ended and a new one commenced in Kennin 4, on the 20th day of the 2nd month of 1204.2
Events of the Genkyū era
Genkyū 1, in the 10th month (1204): Minamoto no Sanetomo ordered Hōjō Masanori, Hōjō Tomomichi and Hatakeyama Shigeyasu to travel to Heian-kyo. These three were charged with escorting the daughter of dainagon Fujiwara-no Noboukiyo to Kamakura where she woould marry Sanetomo.3
Genkyū 1, in the 12th month (1204): Two of Sanetomo's emissaries returned to Kanto with his bride-to-be; but Shigeyasu remained in Heian-kyo where he died.3
Genkyū 2, in the 3rd month (1205): Kyoto and the provinces of the Kinai were devastated by a terrible storm; and at the time, the disaster was deemed to have been caused by the Budhist priest Eisai in consequence of his having brought the Zen school of Buddhism to the capital. Eisai was chased out of Kyoto, but in time, he was permitted to return.3
References
^ Titsingh, Isaac. (1834). Annales des empereurs du japon, pp. 221-227; Brown, Delmer et al. (1979). Gukanshō, p. 340; Varley, H. Paul. (1980). Jinnō Shōtōki, pp. 220-221.
Brown, Delmer and Ichiro Ishida, eds. (1979). [ Jien, 1221], Gukanshō; "The Future and the Past: a translation and study of the 'Gukanshō,' an interpretive history of Japan written in 1219" translated from the Japanese and edited by Delmer M. Brown & Ichirō Ishida. Berkeley: University of California Press. ISBN 0-520-03460-0