There's an area to the northeast named Kanar. It is known for a unique alcoholic beverage that takes a lot of group work but is so highly valued that they can afford to import everything they can't make there. They believe the local god Kan blesses the land, but really the soil has a weird microbiome due to being isolated by a mountain and two rivers. Because everyone works together under the blessings of Kan, everyone shares in the rewards.
It's fun to imagine how they ended up that way. How does a society become collectivist like that? What kind of myths would be told to kids as they grow up and wonder why things are the way they are?
Maybe there was a harsh ruler in the past that made his subjects toil and die attempting to grow incompatible crops. Maybe one day the right person spilled the right crop into the right container and let it ferment on accident. Maybe that lead to them later rediscovering the container having a weird scent and taking a sip out of curiosity.
Maybe that revelation lead to the entire society working through an ever increasingly complicated set of steps and distilling processes to make the beverage taste better and better. Maybe they managed to overthrow and exile the king because of it.
That is how weird geography can be used to create history. Working backwards you can spell out this people's entire societal history from the fact that they make a valued alcoholic drink.
Was Kan actually a local hero that lead the rebellion and later turned into a myth and then a god? Could he as a person have seen the results he would create?