# Provinces are split and grouped into dioceses under vicarii, an administrative redesign

Date: 297

## The fact

[Diocletian](/people/diocletian)’s government multiplied smaller provinces and grouped them into dioceses under vicarii, separating many military and civil careers as later reconstructed.

It is one event.

## Context

More officials can extract (tax row) and can [shorten](/people/bill-shorten) the path from complaint to office. This stores the administrative-industrial redesign.

Diocletian’s documented role is bounded by other offices and collaborators named in the sources below. Sharing a field with them is not a reason to drop a documented act, and it is not a reason to assign later consequences done in the name after death.

Named person as heading of the dated public instrument. Later editors, museums, printers, or offices share publication. Complex where later carriers date the row.

## Evidence and sources

Cambridge Ancient History and Britannica independently describe dioceses and smaller provinces as Diocletianic.

Official or archival record: Cambridge Ancient History (https://www.cambridge.org/core/books/cambridge-ancient-history/; Cambridge University Press).

## Significance

A copyable diocese map is an industrial-administrative path of high confidence on the design.

A diocese is not a Price Edict death clause.

A copyable diocese map is an industrial-administrative path of high confidence on the design.

## What is established and what is not

Established: received provincial/diocesan reorganization. Not established: that subjects paid less, or a unique corruption coefficient.

What would change the picture: a contradictory original with a different date or name, or a measured series that can be argued, with lag and alternatives, as a consequence of this instrument rather than of later institutions.

The date is the date of this instrument, not a licence to back-date every later harm or benefit.

Established here: a sourced, dated public instrument with a named contribution by Diocletian.

What would change the picture: a contradictory original with a different date, signatory, or non-occurrence; a demonstrated forgery; or a measured series that can be argued, with lag and alternatives, as a consequence of this instrument rather than of other causes.

Contribution type is direct. They are not a public rating.

## People

- Diocletian: https://factrail.ai/people/diocletian

## Drivers

- Industrial-Policy Activism: https://factrail.ai/drivers/industrial-policy-activism

## Sources

- https://www.britannica.com/biography/Diocletian
- https://www.cambridge.org/core/books/cambridge-ancient-history/

## Methodology

https://factrail.ai/methodology

Canonical: https://factrail.ai/facts/di-provincial-reorganization