Pre-turn (1490)
Switched around buildings in all non-culture cities to prioritize making temples. At this point, all of those are in queues. Useless temple is working a food deficit to get them out faster.

Cities that have 3 temples, and all

multipliers went into
Tweaked 3 culture cities to grow faster. The plan is to grow fast now, then run a food deficit later (once we have all multipliers in).
Looked for some mansas to sell happy resources to, but couldn't find any with GPT (I renegotiated fish to peach).
Revolted to Pacifism.
Put most of the EPs on Orange Mansa, but it will be quite a while till we can steal stuff.
Set workers to farm teno iron and near pig farmer. In a couple of turns.
Also, saw Kossin's note re: 100%

. Decided to go ahead and do that. We can always build more

in more cities. That should be plenty (we have lots of

in the bank.) Also micromanaged a few cities to work a merchant. We have a lot of cottage paving to do, but I think that's mostly irrelevant.
Also, removed a few obsolete signs.
1500
Not much. Moved some workers around.
1505
Victor Hugo born.
Should I settle? (Math follows... skip if bored by such things.)
Seems like the final culture multipliers will be 2.5 here (in pig farm, which is the slowest city). So settling is worth 12 * 3.5 = 42 culture per turn.
Hence, it's worthwhile to settle if we need more than 4000/42 = 95 turns to win.
Looks like we have 81 base culture now, which will become about 100 base culture in a few turns. Since that gets multiplied out to 350, it will take 48000/350 or 137 turns. So seems like a good idea.
But, we are going to get several GAs in that time. The next is in 7 turns. Let's figure on average one per 15 turns, so we can plan to get several in before 95 turns. Maybe it will be like 4 that we can settle in pig farmer (at some point, someone else will become the slowest and need a culture bomb). So that would suggest we are closer than 95 turns to victory. So we should culture bomb. Right?
So, that's my plan. I am going to plan to culture bomb. Since there is no hurry, I will wait until the end of my set (or maybe even leave them afterwards, in case others think settling better).
1510
Useless temple now done with temples.
1515
20Million and counting!
Also this fool comes knocking.
Ha! I turn him away.
1520
Well, well, well.
Here's the city screen.
So, I revolt to OR to make a few quick missionaries. First out in 2 turns. He will go to Cow-misser. I believe I can get
1525
1530
Hippie notions in the AP.
1535
Trade spices to yellow for corn. (We need all health resources, but don't need anything with happiness.)
1540
Spreading around Christianity. Making a few more roads also (to get missionaries to destinations in one turn).
1545
Here comes another one!
Also keeping him for culture bomb.
0/2 on missionaries this turn.
1550
More demands that get refused.
Much better luck this turn. 3/3 missionaries. We now have 7 cities with Christianity. I was planning to play a couple more turns, but this seemed like a potential decision point, so I am stopping here.
We can be sure of 2/3 of our culture cities having cathedrals without further missionaries. That would mean we could switch back to pacifism again, which would save us a bit of money, and enable us to get back to GA spam in pig-farmer. I am inclined to think we don't really need a cathedral in Horice.
On the other hand, it may be worth staying in OR for a few turns for the 3rd cathedral, and the 25% faster buildings. I can go either way on this one.
Some pics
Cities: