Okay, I got a fun one for you. I'll explain the fun in a moment.
Basics: Attached is a Turn 256 save. For me it doesn't load -- the game crashes to desktop when trying to load from the game menu. Turn 255 should load, and I've also got saves of Turns 254, 253 and 252, and even earlier ones if you need them.
The fun part. I think the problem is an attempted Chinese respawn. I say that, because I went back and loaded up Turn 252 and played forward, saving at 253, etc., as I went. When I ended Turn 255, the game paused and thunk real hard. Then it told me, "Chinese cities have declared their independence, shall we let them go?"
Why is that fun? Because I'm playing Egypt, and I don't have any cities east of Sinai, and the Chinese never even got an emissary over to me. I said yes, and the game proceeded.
It probably won't happen to you if load up Turn 255. After that weird announcement, I loaded Turn 255 again. Again, I got the long pause while the game did some calculations, but then it proceeded into Turn 256 without any kind of announcement.