399
| Years: 395 396 397 398 - 399 - 400 401 402 403 | |
| Decades: 360s 370s 380s - 390s - 400s 410s 420s | |
| Centuries: 3rd century - 4th century - 5th century | |
Events
- Yazdegerd I becomes king of Persia
- November 27 - St. Anastius I becomes Pope succeeding Pope Siricius.
- Fa-Hien, a Chinese Buddhist monk, travels to India.
Births
- January 19 - Pulcheria, Byzantine empress (d. 453)
- Yazdegerd I of Persia (d. 420)
