I had a couple early on... one about the kids remembering something. I don't recall the other. But I also had some interesting ones... like a friendly parrot dropping nuts in my food bin (+500 food), one of my villagers finding a love note (and winding up an adept parent from the exchange of love notes), one of the infamous "vial of liquid" events... and a "special pearl" event that I can only think didn't have a happy resolution possible since I imagine "keep it for herself" would have resulted in her becoming a hermit and I know from experience that sharing it with the tribe resulted in an outbreak of greedy fighting that cost me 200 tech points.