Re: homosexuality is it just......
I'm not saying that climax of the sexual activities had anything to do with the fall of all of those societies, but it is interesting looking at the timeframe of when sexuality reached its peak, and how soon the civilization fell.
with rome, there are several factors. politics, spreading an army too thin, uprisings. you mentioned several reasons for sparta. with egypt and japan (edo period more specifically), i too, doubt sexuality was the source of the downfall, it's just interesting to look at those timeframes, that is all.