Concept
Version 11
Created by Boundless
The Theme System
![The Theme System](../../../../../../../../../figures.boundless-cdn.com/24988/full/-06-11-20at-202.43.01-20pm.jpg)
The Theme System
Map depicting the locations of the themes established during the Heraclian Dynasty of the Byzantine Empire.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"Byzantine Empire Themata."
http://en.wikipedia.org/wiki/File:Byzantine_Empire_Themata-750-en.svg
Wikipedia
Public domain.