10 events the sources record for this year, grouped by region.
What happened
China (7)
Guangwu was enthroned on the altar south of Hao, changed the era name to Jianwu, and renamed Hao as Gaoyi. (Book of the Later Han (Hou Hanshu), Annals 後漢書卷1上 光武帝紀上 建武1年)
On the advice of Li Xiong, the Gongcao of Shu, Gongsun Shu in the fourth month declared himself emperor, founded the Cheng house, renamed the era Yonghsing, and made Li Xiong Grand Minister of Works. Yue Xiu Ren Gui led his commandery to surrender. (Zizhi Tongjian (Comprehensive Mirror) 資治通鑑 卷040 (원문 단락 #2896, 25년))
When the Red Eyebrows reached Gaoling, Wang Guang and Zhang Ang surrendered and together attacked the Dongdao Gate. In the ninth month the Red Eyebrows entered Chang'an, and Emperor Jing alone fled through the Zhufang Gate. (Zizhi Tongjian (Comprehensive Mirror) 資治通鑑 卷040 (원문 단락 #2914, 25년))
In the tenth month, on the day guichou, Emperor Guangwu entered Luoyang, stayed in the Southern Palace, and fixed it as the capital. (Zizhi Tongjian (Comprehensive Mirror) 資治通鑑 卷040 (원문 단락 #2920, 25년))
Southern Europe (3)
Cremutius Cordus is accused on a new charge over a history that praised Brutus and Cassius (Tacitus, Annals and Histories Ann. 4.34)
Distant Spain sends envoys to the Senate asking for temples to Tiberius and his mother to be built (Tacitus, Annals and Histories Ann. 4.37)
In Nearer Spain, a farmer from Termes suddenly attacks and kills the governor Lucius Piso (Tacitus, Annals and Histories Ann. 4.45)