1402
| Years: 1399 1400 1401 - 1402 - 1403 1404 1405 | |
| Decades: 1370s 1380s 1390s - 1400s - 1410s 1420s 1430s | |
| Centuries: 14th century - 15th century - 16th century | |
- September 14 - Battle of Homildon Hill. Northern English nobles led by Sir Henry "Hotspur" Percy, defeat a Scottish raiding army under the Earl of Douglas
- Battle of Angora - Tamerlane defeats the Ottoman Sultan Bayezid I, who is captured. Mehmed I succeeds Bayezid as Sultan.
- 1 August - Edmund of Langley (son of King Edward III of England)