# Constantine I - Roman Emperor

URL: https://roman-history.com/rulers/constantine-i
Reign: 306 – 337 CE
Dynasty: Constantinians
Wikipedia: https://en.wikipedia.org/wiki/Constantine_I

Unified the empire, supported Christianity, and founded Constantinople.

## Succession
- Preceded by: [Diocletian](https://roman-history.com/rulers/diocletian)
- Succeeded by: [Constantius II](https://roman-history.com/rulers/constantius-ii)

## Timeline events during this reign
- 312 - [Battle of the Milvian Bridge](https://roman-history.com/timeline/312-battle-of-the-milvian-bridge)
- 313 - [Agreement of Milan](https://roman-history.com/timeline/313-agreement-of-milan)
- 325 - [Council of Nicaea](https://roman-history.com/timeline/325-council-of-nicaea)
- 330 - [Constantinople Dedicated](https://roman-history.com/timeline/330-constantinople-dedicated)