The world in 1400 AD — what happened that year

26 events the sources record for this year, grouped by region.

What happened

China (7)

At the Baigou River, Li Jinglong won first, but was routed the next day; Qu Neng and others were killed. (History of Ming (Mingshi), Annals 明史卷4 建文二年)
The Yan army took Dezhou and attacked Jinan; Li Jinglong was defeated under the walls of the city and fled south. (History of Ming (Mingshi), Annals 明史卷4 建文二年)
Sheng Yong and Tie Xuan routed the Yan army; the siege of Jinan was lifted and Dezhou was recovered. (History of Ming (Mingshi), Annals 明史卷4 建文二年)
Sheng Yong defeated the Yan army at Dongchang and killed its general Zhang Yu. (History of Ming (Mingshi), Annals 明史卷4 建文二年)
The Yan army took Yuzhou. (History of Ming (Mingshi), Annals 明史卷5 建文二年)
The Prince of Yan advanced to Datong, lured Li Jinglong out of Zijing Pass, and then returned to Juyong. (History of Ming (Mingshi), Annals 明史卷5 建文二年)
The Prince of Yan feigned an attack on Liaodong and headed south day and night; at Cangzhou he captured Xu Kai and broke the city, then buried 3,000 surrendered soldiers alive. (History of Ming (Mingshi), Annals 明史卷5 建文二年)

Southeast Asia (1)

Iskandar Shah left Muar and, while hunting under a malacca tree on the Bertam River, saw a white deer drive off dogs, and founded a city at Malacca. (Malay Annals (Sejarah Melayu) Leyden 1821 p.89)

Eastern Europe & Russia (1)

Archbishop Ioann begins the stone fortress of Detinets. (Novgorod First Chronicle litopys 기사 1400년)

The Americas (17)

After Viracocha's death, his legitimate son Pachacuti succeeds to the empire. (Inca Garcilaso, Royal Commentaries of the Incas Libro VI cap. X (vol.2, l.6399))
Capac Yupanqui, Pachacuti's brother, easily subdues the fertile provinces of Tarma and Pumpu (called Bombón by the Spaniards). (Inca Garcilaso, Royal Commentaries of the Incas Libro VI cap. XI (vol.2, l.6512))
Against rebellious provinces the Inca waits for hunger to subdue the enemy (Chapter 13). (Inca Garcilaso, Royal Commentaries of the Incas Libro VI cap. XIII (vol.2, l.6725))
The province of the good chief Huamachuco is subdued; the Incas later honor him and his descendants highly. (Inca Garcilaso, Royal Commentaries of the Incas Libro VI cap. XIV (vol.2, l.6824))
Uncle and nephew continue the conquests and reach the border of Cajamarca. (Inca Garcilaso, Royal Commentaries of the Incas Libro VI cap. XV (vol.2, l.6858))
Conquest of Yauyo and the triumphal return of uncle and nephew (title of Chapter 16). (Inca Garcilaso, Royal Commentaries of the Incas Libro VI cap. XVI (vol.2, l.6960))
The prudent men of Cajamarca argue for surrender, saying they cannot withstand the Inca's power. (Inca Garcilaso, Royal Commentaries of the Incas Libro VI cap. XVI (vol.2, l.6985))
Pachacuti receives his brother and the crown prince with a grand triumphal ceremony and has them carried into the city in litters. (Inca Garcilaso, Royal Commentaries of the Incas Libro VI cap. XVI (vol.2, l.7013))
He turns to conquer the flat coastal plain in that direction; until then the Inca had taken lands as far as Nasca. (Inca Garcilaso, Royal Commentaries of the Incas Libro VI cap. XVII (vol.2, l.7083))
In the conquest of Chincha, he destroys the waterworks and dries the crops, aiming to subdue the Yunga (coastal people) by hunger. (Inca Garcilaso, Royal Commentaries of the Incas Libro VI cap. XVIII (vol.2, l.7236))