The Celesian Empire

This map shows the continent of Drovia and the Celesian Empire on the planet Terrneva, 2870 years after the colonial transport MIMAS crashed down on the planet (after being pulled into an unknown region of space by a unknown hyperspace effect).
The freight of the MIMAS consisted of: 300.000 colonists including material and animals bound for planet Roma Nova (Roman Revivalists/low level tech), 40.000 colonists bound for planet Triibaaldii (Inventive Creativists) and 15.000 frozen specimen of recreated sauroids including 40 persons of scientific staff bound four planet Crichton's Vision.
After loosing modern technology (which the Roman Revivalists didn't have too much anyway) civilization rose again and the Celesians (descendants of a group of the Roman Revivalists) built the largest empire on the planet. The actual level of technology is comparable to mid 16th century Terran Standard Calendar. Language is a bastardized form of Latin.

I hope I met the theme of the September challenge good enough.

The pictures of the ships and dinosaurs I took from Wikipedia, everything else is my creation. Mountains and trees are brushes I found here in the resources thread on www.cartographersguild.com.

EDIT: Placed dates of colonization and conquest on the map