: 3rd century
- 4th century
- 5th century
Decades: 350s 360s 370s 380s 390s - 400s - 410s 420s 430s 440s 450s
Years: 395 396 397 398 399 - 400 - 401 402 403 404 405
- First invasion of Italy by Alaric (probable date).
- The Vandals start their westward trek from Dacia and Hungary (approximate date).
- Construction (and therefore occupation) at Great Zimbabwe begins (approximate date).
- Earliest date of human occupation on Easter Island (approximate date).
- Chrysanthemums are introduced to Japan (approximate date).