17 events the sources record for this year, grouped by region.
What happened
China (17)
On the first day of the first month, Zhou troops camped under the walls of Jinyang and fought west of the city, but the Zhou and Tujue forces were routed. Duan Shao pursued them beyond the frontier. (Book of Northern Qi (Bei Qishu), Annals 北齊書 卷7)
In the leap ninth month, Zhou forces came out by three routes: Yuchi Jiong toward Luoyang, Yang Kui toward Zhiguan, and Quan Jingxuan toward Xuanhu. In the eleventh month, on the day jiawu, Yuchi Jiong besieged Luoyang. (Book of Northern Qi (Bei Qishu), Annals 北齊書 卷7)
In the eleventh month, on the day jiachen, Grand Commandant Lou Rui crushed the Zhou army at Zhiguan and captured Yang Kui. (Book of Northern Qi (Bei Qishu), Annals 北齊書 卷7)
On the day yimao of the twelfth month, Wang Shiliang, governor of Yuzhou, surrendered his city to the Zhou general Quan Jingxuan. (Book of Northern Qi (Bei Qishu), Annals 北齊書 卷7)
In the twelfth month, on the day dingsi, the emperor set out from Jinyang to the south in person to relieve Luoyang. (Book of Northern Qi (Bei Qishu), Annals 北齊書 卷7)
In the twelfth month, on the day renxu, Grand Preceptor Duan Shao crushed Yuchi Jiong and the others and lifted the siege of Luoyang. On the day dingmao the emperor reached Luoyang and remitted taxes. (Book of Northern Qi (Bei Qishu), Annals 北齊書 卷7)
Yuchi Jiong besieged Luoyang; Yuwen Xian was stationed at Mangshan and Yuwen Hu at Shanzhou. (First Zhou campaign against Northern Qi.) (History of the Northern Dynasties (Beishi), Annals 北史 卷10 保定4年)