Young me picked up on not Aztecs, Greece, Rome, Babylon.
Missed Africa, Egypt and India/Persian. Got Afrca and Egypt after relevant boxed sets wasnt sure about Raam that was internet transference.
Think I was 16 or 17 when I read OBS. We played that year after I read Dragon Kings mind...
Wel my campaign ended. End boss was Fraz Urbluu. Boosted his HP to 500.
He died round 3 vs 5 lvl 13 PCs. He almost eliminated 1. Without buffing may have dropped 2 but heroes feast+aid some of them had 160 odd hp.
He was encounter 5 for the day. 3 high, 1 medium, 1 meteor swarm...