Holy moley, that world gen parameter list is gonna take some learnin'.
My first world is a medium with all defaults (as far as I can tell) that ran until year 200. Aside from an endless parade of goblin murder, the world's most defining feature is constant war between humans and elves, alternating in cause between truthfulness and display of trophies, usually started by the same elven civ. Almost every battle against the ironically named Council of Calming was a handful of humans attacted by at least ten times their number of elves, standing strong about half the time.
Cemir Earthorgan the Honorable Coal of Vising (b7 d48) lost her mother at birth, married at age 12, and trained as a weaver. Struck by wanderlust, she nominally moved to another town at age 25, and after losing her husband to intercine warfare, began traveling through the elven wilds. She then showed up in battle after battle, slaying elf after elf. After just four years she was named leader of the entire kingdom. Cemir's crowning moment was at the Battle of Lashes, where she stood alone in elven territory against 66 soldiers. She struck down 23 without a wound before scaring the rest into a shameful retreat. She was finally felled by a Master Archer and devoured; the hated Avafi still lives. In all, Cemir claimed 175 elven lives. She had three daughters before her husband died - the eldest two were killed by elves, though they each took down some themselves. The youngest moved far away, and lived for another uneventful eighty years as a guard and priest.
Ultimately the elves far superior numbers would let them butcher a human town or two and finally sue for peace, until hatred flared again a few years later. I imagine the remaining, super-spartan humans have some things to say on the matter. The other human civ, the also ironically named Perminant Band, despite going to every battle with larger numbers, though not large enough, faired nowhere near as well.
Man this games rules. I haven't even started dwarf mode yet!