24 events the sources record for this year, grouped by region.
What happened
China (1)
On the 16th day of the 4th month, the era was changed, and Jūei 3 became Genryaku 1. (Azuma Kagami (Mirror of the East) 吾妻鏡 卷3 元暦元年4月16日条 (zh_吾妻鏡_卷003.wiki 229행))
Japan (22)
(1184) On the 20th day of the 1st month, Noriyori and Yoshitsune, as Yoritomo's envoys, entered the capital with tens of thousands of horsemen to attack Yoshinaka. Noriyori came by way of Seta and Yoshitsune by the Uji road; Yoshinaka's forces blocked both routes but were defeated. Yoshinaka was beheaded near Awazu in Ōmi by Ishida Jirō, a resident of Sagami. (Azuma Kagami (Mirror of the East) 吾妻鏡 卷3 壽永三年1月20日条 (zh_吾妻鏡_卷003.wiki 29행))
On the 26th day of the 1st month, the imperial police (kebiishi) at Shichijō riverbed received the heads of Yoshinaka, Tadanaka, Kanehira, and Yukichika, and hung them on trees before the prison gate. They also paraded the prisoner Higuchi Kanemitsu through the streets. (Azuma Kagami (Mirror of the East) 吾妻鏡 卷3 壽永三年1月26日条 (zh_吾妻鏡_卷003.wiki 45행))
On the 29th day of the 1st month, the two Kantō commanders (Noriyori and Yoshitsune) left the capital with their troops for the west to subdue the Taira. (Azuma Kagami (Mirror of the East) 吾妻鏡 卷3 壽永三年1月29日条 (zh_吾妻鏡_卷003.wiki 51행))
On the 4th day of the 2nd month, the Taira gathered tens of thousands of troops along the Saikaidō and Sanindō roads and built a fortress at Ichi-no-tani on the border of Settsu and Harima. That day was the third anniversary of the death of Sōkoku Zenmon (Kiyomori), so they held a memorial service. (Azuma Kagami (Mirror of the East) 吾妻鏡 卷3 壽永三年2月4日条 (zh_吾妻鏡_卷003.wiki 59행))
At dawn on the 7th day of the 2nd month, Yoshitsune split off about seventy picked horsemen and reached Hiyodorigoe, the mountain behind Ichi-no-tani. Kumagai Naozane and Hiyama Sueshige circled around the front route and attacked, proclaiming themselves the vanguard. Taira men Hida Kagetsuna, Etchū Morituji, Kazusa Tadamitsu, and Akushichibyōe Kagekiyo met them with twenty-three riders, opening the wooden gate. Soon many others, including Noriyori, rushed up, and the two armies mixed in fierce fighting. (Azuma Kagami (Mirror of the East) 吾妻鏡 卷3 壽永三年2月7日条 (zh_吾妻鏡_卷003.wiki 82행))
On the 14th day of the 2nd month, Yemon-gon-no-suke Sadanaga, by imperial order, went to the Kyoto residence of the late Chūnagon Ienari (of the Nakamikado family) to interrogate Honsanmi Chūjō Shigehira. Doi Sanehira brought Shigehira in the same carriage, interrogated him on the bare veranda, and recorded his spoken statements and submitted them. (Azuma Kagami (Mirror of the East) 吾妻鏡 卷3 壽永三年2月14日条 (zh_吾妻鏡_卷003.wiki 92행))
On the 15th day of the 2nd month, express messengers of Noriyori and Yoshitsune reached Kamakura from Settsu with the battle record. In the battle of Ichi-no-tani on the 7th, most of the Taira were killed; the former Naidaijin Munemori and the others put to sea and headed for Shikoku; the Honsanmi Chūjō Shigehira was captured alive. Noriyori cut down Tsunemori, Tadanori, and Tsunetoshi; Yoshisada cut down Tsunemasa, Moromori, and Norikyō; and Yoshitsune cut down Atsumori and Tomoaki and others. (Azuma Kagami (Mirror of the East) 吾妻鏡 卷3 壽永三年2月15日条 (zh_吾妻鏡_卷003.wiki 94행))
On the 10th day of the 3rd month, the Honsanmi Chūjō Shigehira left the capital for the Kantō. Kajiwara Kagetoki escorted him, at Yoritomo's request. (Azuma Kagami (Mirror of the East) 吾妻鏡 卷3 壽永三年3月10日条 (zh_吾妻鏡_卷003.wiki 165행))
On the 27th day of the 3rd month, the Sanpin Hayashi (Shigehira) reached the provincial headquarters of Izu. Yoritomo was at Hōjō at the time, so Kagetoki sent a messenger to ask for instructions. He was told to bring him along, and he accompanied them, but the audience was set for the next day. (Azuma Kagami (Mirror of the East) 吾妻鏡 卷3 壽永三年3月27日条 (zh_吾妻鏡_卷003.wiki 181행))
On the 8th day of the 4th month, the Honsanmi Chūjō Shigehira arrived at Kamakura from Izu. Yoritomo chose a house inside the outer walls to receive him, and members of the Kanō family took turns guarding him, ten men each night. (Azuma Kagami (Mirror of the East) 吾妻鏡 卷3 壽永三年4月8日条 (zh_吾妻鏡_卷003.wiki 219행))
The long discord between the king and the count of Jaffa grows severe, and the count of Tripoli takes over the regency and guardianship of the king. (William of Tyre, A History of Deeds Done Beyond the Sea Lib. 23 cap. I (RHC 판 1-2 줄 30742))