AD 180

Later Roman Empire

AD 180–395: a modern periodization of Roman history

This supposed ancient event appears to be the title and date range of a modern history book.

Not an event, a label

Nothing called "180–395 – Late Empire in Rome" happened in 180. It is a period label rather than a date-specific occurrence.

The exact range matches David Potter's modern survey The Roman Empire at Bay, AD 180–395, which treats political, cultural, intellectual and religious transformation across more than two centuries.

Two endpoints, two successions

At the opening boundary there is a defensible event: Marcus Aurelius's death on 17 March 180 left Commodus as sole emperor.

At the closing boundary there is another: Theodosius I died in 395, after which Arcadius governed in the East and Honorius in the West. Those are endpoints of a frame, not one occurrence.

Where scholars actually draw the line

There is no universally fixed beginning or end for the "Late Empire" or the "Late Roman" period. Oxford's Centre for Late Antiquity works with roughly AD 250–450.

The Crisis of the Third Century, conventionally AD 235–284, covers only part of the 180–395 span — and the four-ruler Tetrarchy was not created until 293.

Sources

Researched 23 Aug 2026 9 sources not yet audited Date disputed

How this was checked

Researched from the web into a fact sheet and rewritten from that sheet. This article has not yet had an independent model audit. How the pipeline works →

Date disputed. Sources disagree about when this happened.

What the sources leave uncertain

There is no universally fixed beginning or end for the 'Late Empire' or 'Late Roman' period.
Oxford's Centre for Late Antiquity uses roughly 250–450, demonstrating that 180–395 is one scholarly framing rather than an ancient or universal period.
The linked Crisis of the Third Century covers only 235–284 and cannot verify a 180–395 event.
This record should ideally be converted into a topic page or split into specific events at 180 and 395.