403
| Years: 399 400 401 402 - 403 - 404 405 406 407 | |
| Decades: 370s 380s 390s - 400s - 410s 420s 430s | |
| Centuries: 4th century - 5th century - 6th century | |
Events
- Alaric the Visigoth leaves Italy after his first unsuccessful invasion.
- John Chrysostom, bishop of Constantinople, is deposed and banished, but shortly after recalled, then banished again