These three mapashave been done and published for Historia National Geographic and Storica National Geographic (Spain and Italy).
As I'm in a rush, I dont have to much time to coment them in detail, but as you can see, they are three styles of maps. The one for the medieval times was ambiented in tha time, based in a medieval map, but it has been reprojected and georreferenced to try to fit an actual palte caree projection so the cities and geographical features fall withing the real place. Its not exact, due to the medieval projection, but it may be considered accurate.
The seond one is about Napoleonic campaigns, so while the projection is a usual Lambert one, centered in Europe, the style tries to get that of a 1800's paper.
On both maps, typography, vector colors, plays it's role in giving the impression of a map of those years. Not all is a texture or shaded relief.
The third map is a 3D representation of the battle of thermopilae. This map tries to explain te battle in a a clear way.
I will try to answer any questions you may have.
Fernando J Sanchez Menendez