A rounding problem with population

[PvK]

Loren wrote: "it just seems so wrong that a depopulated province doesn't ever recover. People would move in!"

Pre-industrial non-nomadic people didn't move very often. As in, peasants generally spend their entire lives within a day or two's walk of where they were born.

What are the existing ways to increase population in Dom 3? Offhand I can think of:

* Growth scale, as discussed here.
* Random events, which are more likely in situations... such as having positive growth scale.
* Wishing for population.