Wang Tingzhu is stripped of his titles, and an order is issued for the armies of all commanderies to advance. (Zizhi Tongjian (Comprehensive Mirror) 資治通鑑 卷243)
Japan (2)
The province of Tajima reports by post horse that more than 100 Balhae people have arrived (an entry from the day of the archery ceremony). (Nihon Kōki (Later Chronicles of Japan) 日本後紀 卷36)
Heavy rain floods the roads of the capital and the rivers overflow; mountains collapse, and many people and goods are swept away. Relief envoys are sent to the left and right capitals. (Nihon Kōki (Later Chronicles of Japan) 日本後紀 卷36)
Western Europe (4)
Egbert led an army against North Wales and subjected it peacefully. (Anglo-Saxon Chronicle Giles/Ingram 1847 A.D. 828 항 (pg657.txt 줄 2549))
At the February Aachen assembly the failures of the Spanish frontier commanders are judged and their property confiscated; Balderic, Duke of Friuli, loses his rank and the frontier command for being responsible for the Bulgar devastation of Upper Pannonia, and the frontier is divided among four counts (Royal Frankish Annals ARF a.828, Kurze 1895 p.174)
In June the emperor comes to the palace at Ingelheim, holds the assembly for several days, and deliberates on sending his two sons Lothair and Pippin with the army to the Spanish frontier (Royal Frankish Annals ARF a.828, Kurze 1895 p.174)
Count Boniface, in charge of Corsica, with his brother Bereharius and others, circles Corsica and Sardinia with a small fleet; finding no pirates, he crosses to Africa, lands between Utica and Carthage, and, defeating over five times the crowds of inhabitants that gathered suddenly, causes great fear among the Africans (Royal Frankish Annals ARF a.828, Kurze 1895 p.176)