http://gotm.civfanatics.net/saves/sgotm4/Grayarea_SG004_AD1500_01.SAV
Pre-turn
Made upgrades.
IBT
Greece and Vilkings sign Peace Treaty.
Keltoi start Newton's.
We learn Magnetism >> start Steam Power in 10turns at 100%(+45gpt).
1455AD (1)
Persia, Babylon and Ottomans know Nationalism.
IBT
Greece and Keltoi sign Peace Treaty.
We had a deal with Keltoi: they gave 17gpt for Ivory + Spices. I'll not renew the deal since I want to trade our luxuries elsewhere if and when we can(I'll check).
Keltoi don't know Magnetism and they'll pay someone else for it since all the other civs know it.
So, I trade Keltoi Magnetism for WM +14g(all their gold) +23gpt.
Our Wool + Ivory deal with the Ottomans ends: I give Ottomans Wool + Spices for WM + 117g(almost all their gold) + 5gpt.
1460AD (2)
I trade with Babylon: I give 1 of our excess Ivories for WM + 35g(all their gold) + 10gpt.
We can lower our science to 90%, Steam Power in 9, 310g, + 91gpt.
1465AD (3)
Nothing.
1470AD (4)
Nothing.
1475AD (5)
Utica:
Newton's University >> Heroic Epic.
1480AD (6)
We drop science to 80%, Steam in 5, + 113gpt.
IBT
Our horse deal ends: I offer Babylon WM +15g + 9gpt for horses.
It's better to pay them gpt, so they don't even "think" of making an MA against us in the future.
1485AD (7)
Looking at the diplo screen(as usual) every turn, I see that Persia learned Steam Power, and because they're the only ones that know it, they won't trade for anything.
We need 4 turns for Steam.
1490AD (8)
Lower science to 60%, Steam in 3, + 135gpt. No one else but Persia knows Steam.
1495AD (9)
Nothing.
1500AD (10)
Nothing.
Summary
1) Nobody has Steam except Persia. We learn Steam next turn and then go for Industrialization. Check out if anyone is paying good money for Steam, although I don't think that they can give much gpt, because Persia would have already sell it to the other civs.
2) Utica should begin Military Academy as a pre-built for USuff or as a pre-built to factory(the USuff is always made sooner with factory as it is very expensive), while we learn Industrialization.
3) Rome is set for one more worker as it grows and makes the worker at the same turn. Let's hope that, at least, we'll have coal(unless "someone" wants to make it hard for us

).
4) Our deal with Keltoi ends in 4 turns(they give Silks, we give Wool): renew it. I also have Spices(in reserve) to trade for the Silks if they're too expensive.
We can also give Germany Spices for the same gpt as Keltoi give, if the later don't have money to pay it. Wait and see.
5) As for the tech path after Industrialization, go for ToE and "check" the path in the science screen.
6) Railroad the tiles that our city work, first, and then go and connect our cities(connect West and East), and then everything else.