So, I got frustrated with winning science victories in the 1600's only to get "Herbert Hoover" rank and decided to go for the highest score I could. This meant a huge map where I needed to take out all the competing civs, yet somehow have one stay around to avoid triggering a military victory even with "Domination Victory" turned off while insuring he never became a nuisance. My solution? I walked a settler deep into the snow to found a city that even at max reach will never have a productive tile and is too far away from any other city to even create a trade route. Then I sold this city to my final victim for 1 Gold (he wouldn't accept it as a gift), took all his other cities, made peace, and put a couple of guards to watch it in case it ever managed to grow beyond 1 somehow and tried to produce a settler (and so I could look at him and laugh every 50 turns or so). After 150 turns, he has managed to build 1 warrior and 1 trader, who is just stuck there since he can't reach anything. He hasn't managed to gain a single civic, tech, or great person point in that time. I did miscount, though, eventually he'll be able to reach that 1 snow covered hill that will give him 1 production--I'll just have to nuke it at that point. Now that I think of it, though, I should have done this with my first victim, not my last, so I could trap him forever in the first gvt--I think I let this guy get to Oligarchy, and once in a while he sends out an envoy.