One AI each knows Medit/Poly.
Two know Masonry, Pottery.
Three know Sailing.
Some AI has persisted in producing only 1hpt for a large part of the game (possibly different AIs have switched places on this). Sure would be nice to know who. If Stalin, he won't build GLH on this side of eternity.
would be hard to believe. More likely lots of food and going into settler/worker [AI's do so when hit unhapiness].
Giving big food surplus is one of ways to influenece AI behaviour - force int faster settling, which causes some backwardness research wise. But all thi is just wild guess anyway.
As overall goes i do not plan to interact with your micro plans, but on macro [aka philosophical] level going math>Currency is worth only if you can and will get peace with Ghandi [most likely requiring Maths] and somehow trade Currency for Alpha.
If you want to sign early peace with world Alpha>whatever is lot of better.
If you do not want peace maths>construction [+tech HBR] would allow to kill any civ insight at will.
I hardly understand why you are all so panicking about oracle at 1400Ad. It is rather ealy date for Emperor AI and it is rather are seeing Oracle being built before henge [seen on few archipelago maps].
CS at 1000BC means probably you have no granary, no lighthouse... Unless you want gamble on doing Oracle few hundred years later. Third and further cities most likely [unless some tundra fur, silver present in north] slow down research.
Oracle for CoL and playing some quick diplo with free missionaire is always interesting but we absolutely lack targets to convert to our side...
In deep theory i would take GLH over CS slingshot. Although best would be France building GLH in Paris, unluckily that is totally out of control.
P.S. I am not willing to touch official save, so who has met who already?
button and you'll see culture one tile into the fog as LC said. I've never noticed this before. 
