Alas, this post is not giving you rules to do just that. I haven't actually played Tony Dowler's How to Host a Dungeon but I've read the pdf and watched youtube videos of people playing it. It seems pretty fun and clever. Thinking about my gameworld yesterday, I realized I wish I had an abstract, generative system for developing world history. Anything like that exist?
I might develop this myself when I have more time. As I imagine it it would track empires and peoples as they expand, contract, and interact. Really what I'm looking for is: 1) a general idea of some cataclysmic clashes and loosely when they happened, and 2) general areas of influence that empires had i.e. where can we expect to find their ruins. As with most systems like this, you could do it all manually but this would save me work as well as generating interesting situations I probably would never come up with