Varisians in the World
The Varisian's are gypsies. It's pretty clear what real world influences they are drawn from.
They are nomadic with few permanent settlements but they maintain some sort of presence in nearly every city, town, village, or collection of ten or more permanent buildings. Each settlement in Varisia has what is usually called The Varisian Camp.
Here's how it works. Say for some reason there are no Varaisian's in town. Then a cart pulls in and sets down stakes for a time. This family might be coppersmiths, trading and repairing cookware and cheap jewelry. A few days later another family with two carts might arrive, entertainers and story tellers. Next week a larger family group arrives, three carts and a small herd of ponies to trade. The coppersmiths, feeling a bit crowded and having done all the business they can in this small market, move on. Within a week a family of carpenters might replace them while the dancers move on to greener pastures.
In this fashion pretty much even the smallest village in the region is very likely to have one or two Varisian carts with families in residence at any given time.
In some places, the Varasians have founded semi-permanent towns. Made up nearly entirely of cart families, with possibly one or two stone structures to house a smithy or provide shelter if a bad storm surprises them, these settlements rarely have names but might last for as long as five years before what ever drew the gypsies to settle is over. One week it may seem that they are about to build a school and town hall, the next they might be gone.
For the most part, if a Varisian wishes to really settle in a house, they buy one in an already established town. Usually this is an elderly couple who have tired of travel or a family with a real need to have a permanent building of some sort, like a blacksmith.