301
- This article is about the year. For other uses, see number 301.
| Years: 297 298 299 300 - 301 - 302 303 304 305 | |
| Decades: 270s 280s 290s - 300s - 310s 320s 330s | |
| Centuries: 3rd century - 4th century - 5th century | |
Events
- September 3 - The republic of San Marino is established (traditional date).
- Gregory the Illuminator converts the king of Armenia, which becomes the first officially Christian state. Armenia formally adopted the Christian faith.
- Sima Lun briefly usurps the Jin Dynasty.
- Roman emperor Diocletian issues his Edict on Maximum Prices.