9 events the sources record for this year, grouped by region.
What happened
China (1)
On the third month, day jichou, Zhao Ruyu, prefect of Fuzhou, reported that the pirate Jiang Tailiao had invaded south of Quanzhou, but Jiang Teli, Bingma Dujian, advanced first with a single ship and captured him. (Xu Zizhi Tongjian (Continuation of the Comprehensive Mirror) 권148 三月 단락148.18.0)
Japan (4)
(1183) On the 17th day of the 2nd month, Yasuda Yoshisada arrived at Hashimoto in Hamamatsu-no-shō, Tōtōmi, with Yoshimori, Tadatsuna, and the people of Tōtōmi. It was by Yoritomo's order, to fortify the strongpoint and wait for a Taira attack. (Azuma Kagami (Mirror of the East) 吾妻鏡 卷2 寿永二年2月17日条 (zh_吾妻鏡_卷002.wiki 417행))
(1183) On the 23rd day of the 2nd month, Shida Yoshihiro advanced toward Kamakura with more than 30,000 horsemen and came near the residence of Koyama Tomomasa. Tomomasa first entered Nogi-no-miya and laid his plan, placing men in the valleys and trees to raise war cries so it looked like a large ambush. When Yoshihiro was thrown into confusion, Tomomasa's men attacked, and Munemasa and Yukihira joined in, so Yoshihiro's army was defeated. (Azuma Kagami (Mirror of the East) 吾妻鏡 卷2 寿永二年2月23日条 (zh_吾妻鏡_卷002.wiki 423행))
(1183) On the 4th day of the 5th month, Kiso Yoshinaka, to subdue the Taira, circled by the Hokurikudō and went up to the capital. His vanguard, Negoi Tarō, reached Mizutsu in Echizen and began fighting with the forces of Taira no Michimori. (Azuma Kagami (Mirror of the East) 吾妻鏡 卷2 寿永二年5月4日条 (zh_吾妻鏡_卷002.wiki 441행))
(1183) On the 7th day of the 9th month, Ashikaga Tarō Fujiwara no Toshitsuna (a descendant of Hidesato) sided with the Taira, and his son Tadatsuna sided with Yoshihiro and did not come over to Yoritomo, so Yoritomo issued a pursuit letter. Wada Yoshishige was joined by Miura Yoshitsura, Kazusa Shigeyoshi, and Usami Sanemasa, and Yoshishige went down first that day. (Azuma Kagami (Mirror of the East) 吾妻鏡 卷2 寿永二年9月7日条 (zh_吾妻鏡_卷002.wiki 443행))