13 events the sources record for this year, grouped by region.
What happened
China (11)
Ni Liang, a centurion of the Yanshan Guard, reported the Prince of Yan's disloyalty, and an order was issued to arrest officials of the prince's household. (History of Ming (Mingshi), Annals 明史 卷4 建文元年)
The Prince of Yan, Zhu Di, raised an army (the Jingnan campaign) and killed Zhang Bing, provincial administration commissioner of Beiping, and Xie Gui of the military command. (History of Ming (Mingshi), Annals 明史 卷4 建文元年)
The Yan army took Xiongxian; Pan Zhong and Yang Song were captured at Yueyang Bridge, and Maozhou also fell. (History of Ming (Mingshi), Annals 明史 卷4 建文元年)
Geng Bingwen was defeated by the Yan army north of the Hutuo River and withdrew to hold Zhending; the Yan army attacked but withdrew. (History of Ming (Mingshi), Annals 明史 卷4 建文元年)
By a raid through the byway at Liujiakou, the Yan army took Daning, and it brought the Prince of Ning, Zhu Quan, and the forces of the Doon Guards back to Beiping. (History of Ming (Mingshi), Annals 明史 卷4 建文元年)
Li Jinglong was defeated by the Yan army at Zhengcunba and fled to Dezhou, and the other armies were wiped out. (History of Ming (Mingshi), Annals 明史 卷4 建文元年)
Pilgrimage to Jerusalem of Mowbray, Duke of Norfolk — arrival at Jerusalem (based on the sentence mentioning the arrival at Jerusalem) (Hakluyt, The Principal Navigations vol09 l.5425 (표제 l.5425))
Eastern Europe & Russia (1)
Prince Yeyatak and Simeon attacked Nizhny and in 1399 took it by trickery, but with barely a thousand men they could not hold it. (Karamzin, History of the Russian State 제5권 II장)