I'm not sure what it is for other than Marathon games, but 11 Era points in Marathon means EVERYONE will have a Golden Age in the Classical era. I generally have 30+ to 60+ points by the time Classical rolls around. Just wandering around, seeing Natural Wonders, stomping a few barbarian camps, completing research on a few techs and policies... I mean, it's hard to NOT hit 11 points Now that I'm away from the game, I'm confused. Is 11+ points necessary, just to avoid a Dark Ages in Classical? Any way, it's waaaaaayyyyyy too easy to qualify for a Golden Age in the Classical era.