@V. Soma Nice summary
Can you zip and post lua.log. I am curious what where the valuations and guesses of the strategies.
Nubia has a bonus to districts and RST tweaks her affinity for that. So, yes, she is supposed to build lots of them. Amanitore would go for either religion or dom, so since religion was disabled, she went for dom as I understand. And she declared most of the wars, great.
You didn't have a real Science competitor. Lots of Culture civs, so probably some of them had to switch during the game.
Egypt and Brazil probably went for Culture. Well, Pedro could switch for Science if he'd fail at culture. [Edit. Haven't noticed that he actually did, great]
Question: how were wars spread in time? were there wars late game (let's say, T250+).
On a separate note - wars helped you, that is obvious. Try next time a peaceful play, and you will see how much more difficult is winning then...