# Diocletian Becomes Emperor (284)

URL: https://roman-history.com/timeline/284-diocletian-becomes-emperor
Location: Roman Empire
Categories: main-event

Diocletian's accession ended the conventional third-century crisis and initiated fundamental reforms.

## Why it matters
His reign rebuilt imperial government on a more centralized and collegiate basis.

Ruler at the time: [Diocletian](https://roman-history.com/rulers/diocletian)