Fun Fact: Ansalon is immune to attacks from Nomad Horsemen
I've been listening to a series of lectures about great nomad empires of Eurasia, and noticed that post-Cataclysm Ansalon seems to be completely immune to that particular type of warfare.
The largest plains are on Solamnia, but are largely controlled by the Solamnic Knights. The Horselords of Nordmaar are hemmed in by marshes and the Khalkists. Khur is hemmed in by the Khalkists and the sea. The Centaurs of the Plains of Dust have to cross the Kharolis mountains or cross the Newsea. The Plains of the Goodlund Penninsula likewise are seperated from civilized kingdoms by the fact that it is a penninsula. The Estwilde could produce all sorts of threatening barbarians and monsters, but doesn't have the plains to produce the highly mobile horse archers and lancers that central asia produced. Ansalon neither has the vast plains of Eurasia, nor places where the small plains Ansalon does have can easily enter civilized areas.
There are lots of places for forest-dwelling or mountain-dwelling infantry barbarians like the Germanic tribes, or places vulnerable to sea attack from Norse-style barbarians, but a horde of tens of thousands of horsemen doesn't seem to be something that would be a threat for Ansalon's people.
The official canon of Dragonlance, for a variety of reasons, is not as good as it could be. I do it better.