January 27, 1077Jōryaku gannen (承暦元年): The new era name was created to mark an event or series of events. The previous era ended and the new one commenced in Jōhō 4, on the 17th day of the 11th month of 1077.
1077 (Jōryaku 1, 2nd month): Udaijin Minamoto no Morofusa died at of an ulcer at the age of 70.
1077 (Jōryaku 1): The emperor caused Hosshō-ji (dedicated to the "Superiority of Buddhist Law") to be built at Shirakawa in fulfillment of a sacred vow. This temple became only the first of a series of "sacred vow" temples to be created by Imperial decree. Hosshō-ji's nine-storied pagoda would become the most elaborate Imperial-sponsored temple structure ever erected up to this time.