Thanks Yes, going peaceful does have a good bit of luck involved, but I just don't want to emphasize that too much because I feel it kind of takes away from other people's accomplishments.
It actually was a pain once I started to hit +20 unhappiness from ideologies because a number of cities were already at their local happiness cap. The ones that didn't were puppets and unfortunately I didn't have enough cheap units to put everywhere to take advantage of Military Caste(normally spam Scouts but they go obsolete at Scientific Theory and I forgot to build some). I wanted to raze a few Incan cities but I couldn't during the heat of war because the combat penalty would have been painful. I actually intentionally let a city-state take Graz or w/e Austrian city I had up north knowing they would burn it down. I had kept it because I thought I would need it for Vienna but I didn't.
It was still worth it to be Pachacuti's friend for a while to stave him off, though. He eventually backtsab denounced me but by then I had already used our friendship to get him into 3 wars and sold him a bunch of luxuries that no one else would buy.
Nicely done Elcee, I experienced how hard to win a DomV in this game.